@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400..700&family=Space+Grotesk:wght@500..700&display=swap");

:root {
  --bg: #fffdf8;
  --surface: #ffffff;
  --surface-strong: #fffaf0;
  --ink: #061f3d;
  --muted: #5a6a80;
  --soft: #f4eadc;
  --line: rgba(6, 31, 61, 0.12);
  --cyan: #e18a18;
  --cyan-strong: #f5b64d;
  --accent: #e18a18;
  --accent-soft: #fff3df;
  --button-bg: #061f3d;
  --button-bg-hover: #0b3768;
  --button-text: #ffffff;
  --green: #238d57;
  --blue: #0d5f9e;
  --amber: #e18a18;
  --shadow: rgba(6, 31, 61, 0.12);
  --motion-fast: 160ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --motion-medium: 260ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --motion-spring: 520ms cubic-bezier(0.16, 1, 0.3, 1);
  --lift-shadow: 0 18px 40px color-mix(in srgb, var(--shadow) 84%, transparent);
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font: var(--font-sans);
  --radius: 8px;
  --shell: 1120px;
  --header-height: 74px;
}

[data-theme="dark"] {
  --bg: #061526;
  --surface: #092241;
  --surface-strong: #0c2b50;
  --ink: #fff8ed;
  --muted: #bfd0e0;
  --soft: #14375f;
  --line: rgba(255, 248, 237, 0.14);
  --shadow: rgba(0, 0, 0, 0.34);
  --accent-soft: #10272d;
  --button-bg: #f5b64d;
  --button-bg-hover: #e18a18;
  --button-text: #061f3d;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(140deg, color-mix(in srgb, var(--accent) 9%, transparent), transparent 36rem),
    radial-gradient(circle at 88% 12%, color-mix(in srgb, var(--blue) 8%, transparent), transparent 30rem),
    var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.shell {
  width: min(100% - 2rem, var(--shell));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  transform: translateY(-150%);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--bg);
  padding: 0.65rem 0.9rem;
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: var(--header-height);
  border-bottom: 1px solid transparent;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(18px);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.site-header[data-elevated="true"] {
  border-color: var(--line);
  box-shadow: 0 18px 42px var(--shadow);
}

.header-inner {
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  font-weight: 720;
}

.brand-mark {
  display: grid;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--cyan) 34%, var(--line));
  border-radius: 999px;
  background: #03050e;
  box-shadow: 0 12px 28px var(--shadow);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nav,
.header-actions,
.footer-inner,
.footer-inner nav {
  display: flex;
  align-items: center;
}

.nav {
  gap: 1.35rem;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 650;
}

.nav a:hover,
.nav a:focus-visible,
.footer-inner a:hover,
.footer-inner a:focus-visible {
  color: var(--ink);
}

.header-actions {
  gap: 0.7rem;
}

.platform-header {
  background: color-mix(in srgb, var(--bg) 94%, transparent);
}

.platform-tabs {
  flex: 1 1 auto;
  justify-content: flex-start;
  gap: 0.25rem;
  margin-left: 0.7rem;
}

.platform-tabs a {
  display: inline-flex;
  align-items: center;
  min-height: 2.45rem;
  border-bottom: 2px solid transparent;
  padding: 0.35rem 0.9rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.platform-tabs a:hover,
.platform-tabs a:focus-visible,
.platform-tabs a.is-active {
  border-bottom-color: var(--amber);
  color: var(--amber);
  transform: translateY(-1px);
}

.subjects-menu {
  position: relative;
}

.subjects-menu summary {
  display: inline-flex;
  align-items: center;
  min-height: 2.45rem;
  border-bottom: 2px solid transparent;
  padding: 0.35rem 0.9rem;
  color: var(--muted);
  cursor: pointer;
  list-style: none;
  transition: color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.subjects-menu summary::-webkit-details-marker {
  display: none;
}

.subjects-menu summary::after {
  content: "\25BE";
  margin-left: 0.42rem;
  color: color-mix(in srgb, var(--amber) 62%, var(--muted));
  font-size: 0.82rem;
  font-weight: 900;
}

.subjects-menu summary:hover,
.subjects-menu summary:focus-visible,
.subjects-menu summary.is-active,
.subjects-menu[open] summary {
  border-bottom-color: var(--amber);
  color: var(--amber);
  outline: none;
  transform: translateY(-1px);
}

.subjects-menu-panel {
  position: absolute;
  top: calc(100% + 0.65rem);
  left: 0;
  z-index: 42;
  display: grid;
  width: min(34rem, calc(100vw - 2rem));
  max-height: calc(100vh - 6.5rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid color-mix(in srgb, var(--amber) 28%, var(--line));
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 24px 60px var(--shadow);
  padding: 0.5rem;
}

.subjects-menu-head {
  display: grid;
  gap: 0.08rem;
  border-bottom: 1px solid color-mix(in srgb, var(--amber) 40%, var(--line));
  padding: 0.55rem 0.65rem 0.7rem;
  transition: transform 160ms ease;
}

.subjects-menu-head strong,
.subjects-menu-group > strong {
  color: var(--ink);
}

.subjects-menu-head span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 650;
}

.subjects-menu-group {
  display: grid;
  gap: 0.48rem;
  border-bottom: 1px solid var(--line);
  padding: 0.68rem 0.55rem;
}

.subjects-menu-group a {
  color: var(--muted)!important;
}

.subjects-menu-group:last-of-type {
  border-bottom: 0;
}

.subjects-menu-group div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.42rem;
}

.subjects-menu-panel a {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 88%, var(--soft));
  color: var(--ink);
  padding: 0.42rem 0.65rem;
  font-size: 0.84rem;
  font-weight: 720;
  text-decoration: none;
}

.subjects-menu-panel a:hover,
.subjects-menu-panel a:focus-visible {
  border-color: var(--amber);
  background: color-mix(in srgb, var(--amber) 13%, var(--surface));
  outline: none;
}

.subjects-menu-manage,
.subjects-menu-empty {
  margin: 0.35rem 0.55rem 0.15rem;
}

.account-links a,
.account-menu-panel a {
  display: inline-flex;
  position: relative;
  width: fit-content;
  padding-bottom: 0.18rem;
}

.account-links a::after,
.account-menu-panel a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -0.22rem;
  left: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 160ms ease;
}

.account-link {
  transition: color 160ms ease, transform 160ms ease;
}

.account-link:hover,
.account-link:focus-visible {
  color: var(--amber);
  border-bottom: 2px solid var(--amber);
  transform: translateY(-1px);
}

.platform-actions {
  flex: 0 0 auto;
}

.platform-app-link {
  border-color: color-mix(in srgb, var(--gold) 60%, var(--amber));
  background: color-mix(in srgb, var(--gold) 8%, var(--surface));
  color: var(--ink);
}

.account-menu {
  position: relative;
}

.account-menu summary {
  display: grid;
  place-items: center;
  width: 3.15rem;
  height: 3.15rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  box-shadow: 0 12px 28px var(--shadow);
  cursor: pointer;
  list-style: none;
}

.account-menu summary::-webkit-details-marker {
  display: none;
}

.account-level-ring {
  position: relative;
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border-radius: 999px;
  background:
    conic-gradient(var(--accent) var(--level-ring), color-mix(in srgb, var(--line) 75%, transparent) 0),
    var(--surface);
  box-shadow: inset 0 0 0 3px var(--surface);
}

.account-avatar {
  display: grid;
  width: 2.2rem;
  height: 2.2rem;
  place-items: center;
  overflow: hidden;
  border-radius: 999px;
  background: color-mix(in srgb, var(--gold) 22%, var(--surface));
  color: var(--button-bg);
  font-weight: 860;
}

.account-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--avatar-x, 50%) var(--avatar-y, 50%);
  transform: scale(calc(var(--avatar-zoom, 100) / 100));
  transform-origin: var(--avatar-x, 50%) var(--avatar-y, 50%);
}

.account-level-badge {
  position: absolute;
  right: -0.35rem;
  bottom: -0.28rem;
  min-width: 1.45rem;
  border: 2px solid var(--surface);
  border-radius: 999px;
  background: var(--button-bg);
  color: var(--button-text);
  font-size: 0.62rem;
  font-weight: 800;
  line-height: 1;
  padding: 0.24rem 0.32rem;
  text-align: center;
}

.account-menu-panel {
  position: absolute;
  top: calc(100% + 0.65rem);
  right: 0;
  z-index: 40;
  display: grid;
  min-width: 16rem;
  max-height: calc(100vh - 6.5rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 24px 60px var(--shadow);
  padding: 0.38rem;
}

.account-rank-card {
  display: grid;
  gap: 0.18rem;
  margin: 0.24rem 0.28rem;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--line));
  border-radius: 12px;
  background: color-mix(in srgb, var(--accent-soft) 70%, var(--surface));
  padding: 0.48rem 0.6rem;
}

.account-rank-card span {
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 700;
  text-transform: uppercase;
}

.account-rank-card strong {
  color: var(--ink);
  font-size: 0.92rem;
  line-height: 1.1;
}

.account-rank-card small {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 600;
  line-height: 1.25;
}

.account-rank-card i {
  display: block;
  height: 0.3rem;
  overflow: hidden;
  border-radius: 999px;
  background: color-mix(in srgb, var(--line) 70%, var(--surface));
}

.account-rank-card b {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--cyan-strong));
}

.account-menu-head {
  display: grid;
  gap: 0.04rem;
  border-bottom: 1px solid var(--amber);
  padding: 0.48rem 0.65rem 0.52rem;
}

.account-menu-head strong {
  color: var(--ink);
  font-size: 0.9rem;
  line-height: 1.15;
}

.account-menu-head span {
  overflow: hidden;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
  text-overflow: ellipsis;
}

.account-menu-panel a {
  width: auto;
  border-radius: 10px;
  padding: 0.46rem 0.68rem;
  color: var(--text);
  font-weight: 720;
  text-decoration: none;
  transition: background-color 160ms ease, box-shadow 160ms ease, color 160ms ease, transform 160ms ease;
}

.account-menu-panel a:hover,
.account-menu-panel a:focus-visible {
  background: color-mix(in srgb, var(--accent-soft) 58%, var(--surface));
  box-shadow: inset 3px 0 0 var(--amber);
  color: var(--ink);
  outline: none;
  transform: translateX(3px);
}

.account-menu-panel a:hover::after,
.account-menu-panel a:focus-visible::after {
  transform: scaleX(0);
}

.account-menu-logout {
  margin-top: 0.22rem;
  border-top: 1px solid var(--line);
  color: var(--danger, #b42318) !important;
}

.account-menu-logout:hover,
.account-menu-logout:focus-visible {
  background: color-mix(in srgb, var(--danger, #b42318) 10%, var(--surface)) !important;
  box-shadow: inset 3px 0 0 var(--danger, #b42318);
  color: var(--danger, #b42318) !important;
}

.theme-toggle {
  position: relative;
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  width: 4.8rem;
  height: 2.35rem;
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--button-bg) 18%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 88%, var(--soft));
  color: var(--ink);
  cursor: pointer;
  padding: 0.2rem;
  box-shadow: 0 10px 24px var(--shadow);
}

.theme-toggle::before {
  position: absolute;
  top: 0.2rem;
  left: 0.2rem;
  width: calc(50% - 0.2rem);
  height: calc(100% - 0.4rem);
  border-radius: 999px;
  background: var(--button-bg);
  content: "";
  box-shadow: 0 8px 18px color-mix(in srgb, var(--button-bg) 28%, transparent);
  transition: transform 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

[data-theme="dark"] .theme-toggle::before {
  transform: translateX(100%);
}

.theme-toggle-icon {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 0;
  font-weight: 820;
  letter-spacing: 0;
  line-height: 1;
}

.theme-toggle-icon::before {
  display: none;
}

.theme-toggle-icon::after {
  font-size: 0.66rem;
}

.theme-toggle-icon-sun::after {
  content: "An";
}

.theme-toggle-icon-moon::after {
  content: "Aus";
}

[data-theme="light"] .theme-toggle-icon-sun,
[data-theme="dark"] .theme-toggle-icon-moon {
  color: var(--button-text);
}

.button,
.filter,
.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 650;
  line-height: 1.15;
  cursor: pointer;
  text-align: center;
  transition: transform var(--motion-fast), border-color var(--motion-fast), background-color var(--motion-fast), color var(--motion-fast), box-shadow var(--motion-fast);
}

.button {
  min-height: 2.55rem;
  border-color: var(--line);
  background: color-mix(in srgb, var(--surface) 90%, var(--soft));
  color: var(--ink);
  padding: 0.62rem 1rem;
  font-size: 0.94rem;
}

.button:hover,
.button:focus-visible,
.download-button:hover,
.download-button:focus-visible {
  box-shadow: var(--lift-shadow);
  transform: translateY(-2px);
}

.button-small {
  min-height: 2.3rem;
  padding: 0.56rem 0.95rem;
  font-size: 0.9rem;
}

.button-ghost {
  border-color: color-mix(in srgb, var(--accent) 34%, var(--line));
  background: color-mix(in srgb, var(--surface) 78%, var(--accent-soft));
  color: color-mix(in srgb, var(--accent) 42%, var(--ink));
}

.button-ghost:hover,
.button-ghost:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 62%, var(--line));
  background: color-mix(in srgb, var(--accent) 12%, var(--surface));
  color: var(--ink);
}

.button-primary {
  border-color: color-mix(in srgb, var(--button-bg) 82%, var(--accent));
  background: var(--button-bg);
  color: var(--button-text);
  box-shadow: 0 10px 22px color-mix(in srgb, var(--button-bg) 24%, transparent);
}

.button-primary:hover,
.button-primary:focus-visible {
  border-color: var(--button-bg-hover);
  background: var(--button-bg-hover);
  color: #041316;
}

.button-back {
  border-color: color-mix(in srgb, var(--amber) 78%, var(--gold));
  background: linear-gradient(135deg, color-mix(in srgb, var(--amber) 20%, var(--surface)), color-mix(in srgb, var(--gold) 22%, var(--surface)));
  color: color-mix(in srgb, var(--amber) 48%, var(--ink));
  box-shadow: 0 10px 24px color-mix(in srgb, var(--amber) 18%, transparent);
}

.button-back::before {
  content: "\2190";
  margin-right: 0.38rem;
  font-weight: 900;
}

.button-back:hover,
.button-back:focus-visible {
  border-color: var(--amber);
  background: color-mix(in srgb, var(--amber) 18%, var(--surface));
  color: var(--ink);
}

.button-danger {
  border-color: color-mix(in srgb, #c33b3b 44%, var(--line));
  background: color-mix(in srgb, #c33b3b 8%, var(--surface));
  color: #8b1e1e;
}

.button-danger:hover,
.button-danger:focus-visible {
  border-color: #c33b3b;
  background: color-mix(in srgb, #c33b3b 14%, var(--surface));
  color: #741818;
}

.button-app,
.button-app-update {
  gap: 0.38rem;
  white-space: nowrap;
}

.button-app {
  border-color: color-mix(in srgb, var(--accent) 52%, var(--line));
  background: var(--accent-soft);
  color: var(--ink);
}

.button-app::before {
  content: "";
  width: 0.9rem;
  height: 0.9rem;
  border: 2px solid currentColor;
  border-radius: 0.2rem;
  box-shadow: inset 0 -0.16rem 0 currentColor;
}

.button-app-update {
  border-color: color-mix(in srgb, var(--blue) 34%, var(--line));
  background: color-mix(in srgb, var(--surface) 88%, var(--soft));
  color: var(--ink);
}

.button-app-update::before {
  content: "\21BB";
  font-size: 0.95rem;
  font-weight: 900;
  line-height: 1;
}

.hero {
  padding: clamp(2.6rem, 5vw, 4.5rem) 0 1rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.88fr);
  gap: clamp(1.4rem, 4vw, 3.5rem);
  align-items: stretch;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 18ch;
  margin-bottom: 0.8rem;
  font-size: clamp(2.25rem, 4.2vw, 3.35rem);
  font-weight: 760;
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0.55rem;
  font-size: clamp(1.45rem, 2.4vw, 2.05rem);
  font-weight: 720;
  line-height: 1.14;
  letter-spacing: 0;
}

.claim {
  max-width: 780px;
  margin-bottom: 0.9rem;
  color: var(--ink);
  font-size: clamp(1.12rem, 1.8vw, 1.45rem);
  font-weight: 620;
  line-height: 1.35;
}

.intro {
  max-width: 700px;
  color: var(--muted);
  font-size: 1.08rem;
}

.drop-zone {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--cyan) 18%, transparent), transparent 50%),
    var(--surface-strong);
  padding: clamp(1.15rem, 2.4vw, 1.55rem);
  box-shadow: 0 24px 60px var(--shadow);
}

.signal-panel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
  border: 1px solid color-mix(in srgb, var(--cyan) 26%, var(--line));
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--cyan) 14%, transparent), transparent 55%),
    color-mix(in srgb, var(--surface) 86%, var(--soft));
  padding: 1rem;
}

.signal-orbit {
  position: relative;
  display: grid;
  width: 4.2rem;
  height: 4.2rem;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--cyan) 45%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--ink) 88%, var(--cyan));
  color: var(--cyan-strong);
  font-size: 1.25rem;
  font-weight: 760;
  box-shadow: inset 0 0 0 0.55rem color-mix(in srgb, var(--cyan) 11%, transparent);
}

.signal-orbit::after {
  position: absolute;
  inset: -0.45rem;
  border: 1px dashed color-mix(in srgb, var(--cyan) 45%, transparent);
  border-radius: inherit;
  content: "";
}

.signal-stack {
  display: grid;
  gap: 0.56rem;
}

.signal-stack span {
  display: block;
  width: var(--w);
  height: 0.68rem;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan), color-mix(in srgb, var(--blue) 78%, var(--cyan)));
  opacity: 0.86;
}

.topic-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.55rem;
  margin-bottom: 1.15rem;
}

.topic-metrics span {
  display: grid;
  min-height: 4.1rem;
  align-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 82%, var(--soft));
  color: var(--muted);
  padding: 0.72rem;
  font-size: 0.82rem;
  font-weight: 620;
}

.topic-metrics strong {
  display: block;
  color: var(--ink);
  font-size: 1.08rem;
  line-height: 1.1;
}

.drop-zone p {
  color: var(--muted);
}

code {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: color-mix(in srgb, var(--surface) 76%, var(--soft));
  padding: 0.1rem 0.34rem;
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.88em;
}

.text-link {
  color: color-mix(in srgb, var(--cyan) 72%, var(--ink));
  font-weight: 700;
}

.study-dashboard {
  padding: clamp(1.15rem, 3vw, 2.4rem) 0 clamp(2rem, 5vw, 3.8rem);
}

.study-dashboard .shell {
  width: min(100% - 2rem, 1320px);
}

.dashboard-frame {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  align-items: start;
  overflow: visible;
  border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--line));
  border-radius: 24px;
  background: color-mix(in srgb, var(--surface) 96%, var(--bg));
  box-shadow: 0 22px 58px color-mix(in srgb, var(--shadow) 96%, transparent);
}

.dashboard-frame-no-rail {
  grid-template-columns: minmax(0, 1fr);
}

.dashboard-menu-toggle,
.dashboard-menu-close,
.dashboard-menu-backdrop {
  display: none;
}

.dashboard-rail {
  position: sticky;
  top: calc(var(--header-height) + 1rem);
  z-index: 16;
  display: grid;
  width: 100%;
  min-height: min(660px, calc(100vh - var(--header-height) - 2rem));
  max-height: calc(100vh - var(--header-height) - 2rem);
  align-content: start;
  gap: 1.25rem;
  overflow-y: auto;
  border-radius: 24px 0 0 24px;
  background: #061f3d;
  color: #fff;
  padding: 1.25rem 0.95rem;
}

.rail-logo {
  display: grid;
  width: 4.25rem;
  height: 4.25rem;
  place-items: center;
  justify-self: center;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, rgba(255, 255, 255, 0.2));
  border-radius: 16px;
  background: #fff;
}

.rail-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rail-nav {
  display: grid;
  gap: 0.42rem;
  margin-top: 0.3rem;
}

.rail-nav a {
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.72);
  padding: 0.62rem 0.72rem;
  font-weight: 760;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.rail-nav a:hover,
.rail-nav a:focus-visible,
.rail-nav a.is-active {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  transform: translateX(2px);
}

.rail-subjects {
  display: grid;
  gap: 0.7rem;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 1rem;
}

.rail-active-subject {
  margin-top: auto;
}

.rail-subjects > span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.rail-subjects article {
  display: grid;
  gap: 0.52rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.72rem;
}

.rail-subjects strong {
  color: #fff;
  font-size: 0.86rem;
  line-height: 1.2;
}

.rail-subjects div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.rail-subjects a {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.78);
  padding: 0.32rem 0.52rem;
  font-size: 0.74rem;
  font-weight: 760;
}

.rail-manage-link {
  justify-content: center;
  border-color: color-mix(in srgb, var(--amber) 62%, rgba(255, 255, 255, 0.18)) !important;
  background: color-mix(in srgb, var(--amber) 18%, rgba(255, 255, 255, 0.08)) !important;
  color: #fff !important;
}

.rail-subjects a:hover,
.rail-subjects a:focus-visible {
  border-color: color-mix(in srgb, var(--amber) 70%, rgba(255, 255, 255, 0.2));
  color: #fff;
}

.dashboard-main {
  position: relative;
  display: grid;
  min-width: 0;
  gap: 1rem;
  padding: clamp(1rem, 2.2vw, 1.6rem);
}

.study-dashboard-page .dashboard-rail {
  animation: dashboardRailIn var(--motion-spring) both;
}

.study-dashboard-page .dashboard-welcome,
.study-dashboard-page .dashboard-level-panel,
.study-dashboard-page .leaderboard-panel,
.study-dashboard-page .week-panel,
.study-dashboard-page .mission-panel,
.study-dashboard-page .focus-panel,
.study-dashboard-page .progress-panel,
.study-dashboard-page .current-panel,
.study-dashboard-page .recent-panel {
  animation: dashboardFadeUp var(--motion-spring) both;
}

.study-dashboard-page .dashboard-welcome {
  animation-delay: 40ms;
}

.study-dashboard-page .dashboard-level-panel {
  animation-delay: 100ms;
}

.study-dashboard-page .leaderboard-panel {
  animation-delay: 150ms;
}

.study-dashboard-page .week-panel {
  animation-delay: 210ms;
}

.study-dashboard-page .mission-panel {
  animation-delay: 270ms;
}

.study-dashboard-page .focus-panel {
  animation-delay: 330ms;
}

.study-dashboard-page .progress-panel,
.study-dashboard-page .current-panel {
  animation-delay: 390ms;
}

.study-dashboard-page .recent-panel {
  animation-delay: 450ms;
}

.dashboard-welcome {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: auto;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid color-mix(in srgb, var(--accent) 16%, var(--line));
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 92%, var(--accent-soft));
  padding: clamp(0.9rem, 2vw, 1.2rem);
}

.dashboard-welcome h1 {
  max-width: none;
  margin-bottom: 0.18rem;
  font-size: clamp(1.55rem, 2.45vw, 2.05rem);
  overflow-wrap: anywhere;
}

.dashboard-welcome p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.98rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.dashboard-welcome-slim {
  min-height: auto;
  align-items: center;
}

.dashboard-header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  justify-content: flex-end;
}

.dashboard-mascot {
  position: absolute;
  top: -3.6rem;
  left: 50%;
  width: clamp(7rem, 13vw, 10rem);
  height: clamp(7rem, 13vw, 10rem);
  transform: translateX(-50%);
  border: 10px solid var(--surface);
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 20px 54px var(--shadow);
  object-fit: cover;
}

.dashboard-avatar {
  display: grid;
  width: 3.9rem;
  height: 3.9rem;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 19%, var(--surface));
  color: var(--button-bg);
  font-size: 1.4rem;
  font-weight: 820;
}

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.dashboard-stats article,
.dashboard-panel {
  border: 1px solid color-mix(in srgb, var(--accent) 20%, var(--line));
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 12px 34px color-mix(in srgb, var(--shadow) 56%, transparent);
  transition: transform var(--motion-fast), border-color var(--motion-fast), box-shadow var(--motion-fast), background-color var(--motion-fast);
}

.dashboard-stats article {
  display: grid;
  min-height: 7.8rem;
  align-content: center;
  gap: 0.18rem;
  padding: 1rem 1.1rem;
}

.dashboard-stats span,
.next-panel > span {
  color: var(--muted);
  font-weight: 800;
}

.dashboard-stats strong {
  color: var(--ink);
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  line-height: 1;
}

.dashboard-stats small {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 680;
  line-height: 1.28;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.95fr);
  gap: 1.3rem;
}

.dashboard-home-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.58fr) minmax(270px, 0.7fr);
  gap: 1rem;
  align-items: stretch;
}

.dashboard-level-panel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  min-width: 0;
  gap: clamp(0.9rem, 1.8vw, 1.35rem);
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--button-bg) 36%, var(--line));
  border-radius: 20px;
  background:
    radial-gradient(circle at 84% 18%, rgba(245, 182, 77, 0.16), transparent 17rem),
    linear-gradient(135deg, #061f3d 0%, #082b50 100%);
  color: #fff;
  box-shadow: 0 16px 36px color-mix(in srgb, var(--button-bg) 24%, transparent);
  padding: clamp(1.1rem, 2.5vw, 1.55rem);
  transition: transform var(--motion-fast), box-shadow var(--motion-fast);
}

.level-orb {
  display: grid;
  width: clamp(5rem, 7vw, 6rem);
  height: clamp(5rem, 7vw, 6rem);
  place-items: center;
  border-radius: 999px;
  background:
    radial-gradient(circle at center, #0b2c51 58%, transparent 60%),
    conic-gradient(var(--accent) var(--level-ring, 0%), rgba(255, 255, 255, 0.18) 0);
  box-shadow: inset 0 0 0 8px rgba(255, 255, 255, 0.08);
}

.level-orb span {
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.72rem;
  font-weight: 820;
  text-transform: uppercase;
}

.level-orb strong {
  margin-top: -1.6rem;
  color: #fff;
  font-size: clamp(1.65rem, 3vw, 2.15rem);
  line-height: 1;
}

.level-main h2 {
  margin-bottom: 0.28rem;
  color: #fff;
  font-size: clamp(1.8rem, 3vw, 2.35rem);
  overflow-wrap: anywhere;
}

.level-main p:not(.eyebrow) {
  margin-bottom: 0.78rem;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 680;
  overflow-wrap: anywhere;
}

.level-progress {
  position: relative;
  height: 0.62rem;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
}

.level-progress span {
  position: relative;
  display: block;
  height: 100%;
  overflow: hidden;
  border-radius: inherit;
  background: var(--accent);
  box-shadow: 0 0 22px color-mix(in srgb, var(--accent) 42%, transparent);
}

.level-progress span::after,
.progress-track span::after,
.mission-progress span::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 0%, rgba(255, 255, 255, 0.38) 45%, transparent 72%);
  content: "";
  transform: translateX(-115%);
  animation: progressSheen 2600ms cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.level-progress-meta,
.level-metrics {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.62rem;
}

.level-progress-meta {
  margin-top: 0.4rem;
  color: rgba(255, 255, 255, 0.74);
  font-weight: 760;
}

.level-metrics {
  grid-column: 1 / -1;
}

.level-metrics article {
  display: grid;
  min-width: 0;
  flex: 1;
  gap: 0.1rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.08);
  padding: 0.72rem;
}

.level-metrics span,
.level-metrics small {
  color: rgba(255, 255, 255, 0.66);
  font-weight: 720;
}

.level-metrics strong {
  color: #fff;
  font-size: clamp(1.18rem, 1.8vw, 1.45rem);
}

.level-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.85rem;
}

.level-actions .button {
  flex: 0 0 auto;
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 28px rgba(225, 138, 24, 0.28);
}

.level-actions > span {
  min-width: 0;
  overflow: hidden;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 720;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dashboard-side-stack {
  display: grid;
  gap: 1rem;
}

.week-panel h2,
.compact-progress-panel h2 {
  margin-bottom: 0.75rem;
}

.week-strip {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.45rem;
}

.week-strip span {
  position: relative;
  display: grid;
  min-height: 3.85rem;
  grid-template-rows: 1.5rem auto;
  gap: 0.28rem;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 12px;
  background: color-mix(in srgb, var(--muted) 10%, transparent);
  color: var(--muted);
  font-weight: 820;
  padding: 0.4rem 0.25rem 0.45rem;
  transition: transform var(--motion-fast), border-color var(--motion-fast), background-color var(--motion-fast), box-shadow var(--motion-fast);
}

.week-strip span:hover {
  border-color: color-mix(in srgb, var(--accent) 32%, var(--line));
  transform: translateY(-1px);
}

.week-strip span em {
  position: relative;
  z-index: 1;
  color: inherit;
  font-style: normal;
  line-height: 1;
}

.week-strip span.is-active {
  background: color-mix(in srgb, var(--accent) 18%, var(--surface));
  border-color: color-mix(in srgb, var(--accent) 42%, var(--line));
  color: var(--accent-strong);
  box-shadow: 0 12px 22px color-mix(in srgb, var(--accent) 15%, transparent);
}

.week-flame {
  position: relative;
  display: inline-grid;
  width: 0.9rem;
  height: 1.12rem;
  place-items: center;
  opacity: 0.38;
  transform-origin: 50% 90%;
  filter: drop-shadow(0 4px 8px color-mix(in srgb, var(--muted) 18%, transparent));
}

.week-flame::before,
.week-flame::after {
  position: absolute;
  content: "";
}

.week-flame::before {
  width: 0.78rem;
  height: 0.95rem;
  border-radius: 76% 76% 72% 10%;
  background: linear-gradient(145deg, color-mix(in srgb, var(--muted) 35%, var(--surface)), color-mix(in srgb, var(--muted) 16%, transparent));
  transform: rotate(-43deg) skew(-4deg);
}

.week-flame::after {
  bottom: 0.18rem;
  width: 0.34rem;
  height: 0.5rem;
  border-radius: 72% 72% 72% 10%;
  background: color-mix(in srgb, var(--surface) 72%, var(--muted));
  opacity: 0.68;
  transform: rotate(-39deg);
}

.week-strip span.is-active .week-flame {
  opacity: 1;
  filter: drop-shadow(0 0 8px color-mix(in srgb, var(--accent) 48%, transparent));
  animation: flameFlicker 1150ms ease-in-out infinite;
}

.week-strip span.is-active:nth-child(2n) .week-flame {
  animation-delay: -180ms;
}

.week-strip span.is-active:nth-child(3n) .week-flame {
  animation-delay: -340ms;
}

.week-strip span.is-active .week-flame::before {
  background: linear-gradient(145deg, #ffe6a3 0%, var(--cyan-strong) 36%, var(--accent) 72%, #c85d0d 100%);
}

.week-strip span.is-active .week-flame::after {
  background: linear-gradient(145deg, #fff8d7 0%, #ffd66b 68%, transparent 100%);
  opacity: 0.95;
}

.compact-progress-head {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.compact-progress-head > strong {
  display: grid;
  width: 4.2rem;
  height: 4.2rem;
  place-items: center;
  flex: 0 0 auto;
  border: 8px solid color-mix(in srgb, var(--accent) 38%, var(--line));
  border-radius: 999px;
  color: var(--ink);
  font-size: 1.15rem;
}

.compact-progress-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin-top: 1rem;
}

.compact-progress-stats span {
  border-radius: 12px;
  background: color-mix(in srgb, var(--soft) 72%, var(--surface));
  color: var(--muted);
  padding: 0.8rem;
  font-weight: 700;
}

.compact-progress-stats strong {
  display: block;
  color: var(--ink);
  font-size: 1.45rem;
}

.week-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  margin-top: 0.85rem;
}

.week-summary span {
  border-radius: 12px;
  background: color-mix(in srgb, var(--soft) 70%, var(--surface));
  color: var(--muted);
  padding: 0.68rem;
  font-weight: 700;
}

.week-summary strong {
  display: block;
  color: var(--ink);
  font-size: 1.22rem;
}

.leaderboard-panel {
  display: grid;
  gap: 1rem;
}

.leaderboard-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.9rem;
}

.leaderboard-head h2 {
  margin-bottom: 0;
}

.leaderboard-head > span {
  flex: 0 0 auto;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 13%, var(--surface));
  color: var(--accent-strong);
  padding: 0.36rem 0.58rem;
  font-size: 0.78rem;
  font-weight: 780;
}

.leaderboard-list {
  display: grid;
  gap: 0.52rem;
}

.leaderboard-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.68rem;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: color-mix(in srgb, var(--soft) 66%, var(--surface));
  padding: 0.62rem;
  transition: transform var(--motion-fast), border-color var(--motion-fast), box-shadow var(--motion-fast), background-color var(--motion-fast);
}

.leaderboard-row.is-current {
  border-color: color-mix(in srgb, var(--accent) 58%, var(--line));
  background: color-mix(in srgb, var(--accent) 16%, var(--surface));
}

.leaderboard-rank {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 999px;
  background: var(--button-bg);
  color: var(--button-text);
  font-weight: 860;
}

.leaderboard-row strong,
.leaderboard-row small {
  display: block;
  min-width: 0;
}

.leaderboard-row strong {
  overflow: hidden;
  color: var(--ink);
  font-weight: 820;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leaderboard-row small {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.28;
}

.leaderboard-row em {
  color: var(--ink);
  font-style: normal;
  font-weight: 850;
  white-space: nowrap;
}

.section-heading-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-heading-row h2 {
  margin-bottom: 0;
}

.mission-reset {
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 13%, var(--surface));
  color: var(--accent-strong);
  padding: 0.45rem 0.7rem;
  font-size: 0.82rem;
  font-weight: 780;
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.72rem;
}

.mission-card {
  display: grid;
  gap: 0.58rem;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface) 98%, var(--soft));
  padding: 0.82rem;
  transition: transform var(--motion-fast), border-color var(--motion-fast), box-shadow var(--motion-fast);
}

.mission-card > div {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.65rem;
  align-items: center;
}

.mission-icon {
  display: inline-grid;
  width: 1.9rem;
  height: 1.9rem;
  place-items: center;
  border-radius: 10px;
  background: color-mix(in srgb, var(--accent) 15%, var(--surface));
}

.mission-icon::before {
  width: 0.72rem;
  height: 0.72rem;
  border: 2px solid var(--accent);
  border-radius: 999px;
  content: "";
}

.mission-card strong {
  overflow: hidden;
  color: var(--ink);
  font-size: 0.98rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mission-card em {
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 13%, var(--surface));
  color: var(--accent-strong);
  padding: 0.24rem 0.5rem;
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 820;
}

.mission-card p {
  min-height: auto;
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 650;
  line-height: 1.42;
}

.mission-progress {
  height: 0.48rem;
  overflow: hidden;
  border-radius: 999px;
  background: color-mix(in srgb, var(--muted) 12%, transparent);
}

.mission-progress span {
  position: relative;
  display: block;
  height: 100%;
  overflow: hidden;
  border-radius: inherit;
  background: var(--button-bg);
}

.mission-card small {
  justify-self: end;
  color: var(--muted);
  font-weight: 760;
}

.focus-panel {
  display: grid;
  gap: 1rem;
}

.focus-list {
  display: grid;
  gap: 0.7rem;
}

.focus-item {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr) auto;
  gap: 0.8rem;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 94%, var(--soft));
  color: inherit;
  padding: 0.85rem;
  text-decoration: none;
  transition: transform var(--motion-fast), border-color var(--motion-fast), box-shadow var(--motion-fast), background-color var(--motion-fast);
}

.focus-item:hover,
.focus-item:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 52%, var(--line));
  box-shadow: 0 12px 28px color-mix(in srgb, var(--shadow) 62%, transparent);
  outline: none;
  transform: translateY(-2px);
}

.focus-item > span {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border-radius: 999px;
  background: var(--button-bg);
  color: #fff;
  font-weight: 820;
}

.focus-item strong {
  display: block;
  overflow: hidden;
  color: var(--ink);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.focus-item small {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  color: var(--muted);
  font-weight: 650;
}

.focus-item em {
  color: var(--ink);
  font-style: normal;
  font-weight: 820;
}

.dashboard-support-grid {
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
}

.dashboard-support-grid-compact {
  align-items: stretch;
}

.dashboard-panel {
  padding: clamp(0.95rem, 1.7vw, 1.25rem);
}

.progress-panel,
.roadmap-panel {
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

.dashboard-panel h2 {
  margin-bottom: 0.72rem;
  font-size: clamp(1.15rem, 1.7vw, 1.38rem);
}

.progress-list {
  display: grid;
  gap: 0.72rem;
}

.progress-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.45fr) minmax(90px, 1fr) auto;
  gap: 0.65rem;
  align-items: center;
}

.progress-row span {
  font-weight: 680;
}

.progress-track {
  height: 0.58rem;
  overflow: hidden;
  border-radius: 999px;
  background: color-mix(in srgb, var(--muted) 13%, transparent);
}

.progress-track span {
  position: relative;
  display: block;
  height: 100%;
  overflow: hidden;
  border-radius: inherit;
  background: var(--button-bg);
}

.progress-row strong {
  min-width: 3ch;
  font-size: 1.06rem;
}

.progress-row small {
  grid-column: 2 / -1;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 720;
}

.next-panel {
  display: grid;
  align-content: center;
  min-height: 15.2rem;
  background: var(--button-bg);
  color: #fff;
}

.next-panel h2 {
  color: #fff;
  margin-bottom: 0.35rem;
}

.next-panel p {
  color: rgba(255, 255, 255, 0.76);
  font-size: 1.12rem;
  font-weight: 680;
}

.next-panel .button {
  width: fit-content;
  border-color: var(--cyan-strong);
  background: var(--cyan-strong);
  color: var(--ink);
}

.current-panel,
.trixie-card {
  min-height: auto;
}

.task-list {
  display: grid;
  gap: 0.76rem;
}

.task-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) max-content;
  gap: 0.65rem;
  align-items: center;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 12px;
  background: color-mix(in srgb, var(--surface) 96%, var(--soft));
  padding: 0.62rem;
  text-decoration: none;
  transition: transform var(--motion-fast), border-color var(--motion-fast), box-shadow var(--motion-fast), background-color var(--motion-fast);
}

.task-item:hover,
.task-item:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 48%, var(--line));
  box-shadow: 0 12px 26px color-mix(in srgb, var(--shadow) 58%, transparent);
  outline: none;
  transform: translateY(-2px);
}

.task-item span:nth-child(2) {
  overflow: hidden;
  font-weight: 680;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.task-item small {
  display: inline-flex;
  max-width: min(11rem, 100%);
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: color-mix(in srgb, #8b5cf6 14%, var(--surface));
  color: #7c3aed;
  padding: 0.24rem 0.55rem;
  font-weight: 720;
  line-height: 1.15;
  text-align: center;
}

.task-dot {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 999px;
}

.task-dot.blue {
  background: var(--blue);
}

.task-dot.amber {
  background: var(--amber);
}

.panel-empty {
  color: var(--muted);
}

.trixie-card p {
  border-radius: 14px;
  background: color-mix(in srgb, var(--muted) 9%, transparent);
  color: var(--ink);
  padding: 1rem;
}

.trixie-card-trigger {
  display: flex;
  width: 100%;
  min-height: 3.2rem;
  align-items: center;
  justify-content: space-between;
  border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--line));
  border-radius: 14px;
  background: var(--surface);
  color: var(--muted);
  padding: 0.75rem 0.9rem;
  cursor: pointer;
  font: inherit;
  font-weight: 680;
}

.trixie-card-trigger span {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 999px;
  background: var(--button-bg);
  color: #fff;
}

.trixie-card-trigger:hover,
.trixie-card-trigger:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 60%, var(--line));
  color: var(--ink);
}

.recent-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
}

.recent-panel h2 {
  margin-bottom: 0.2rem;
}

.recent-panel p {
  margin: 0;
  color: var(--muted);
  font-weight: 680;
}

.recent-attempts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: flex-end;
}

.recent-attempt-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 84%, var(--soft));
  padding: 0.24rem;
  transition: transform var(--motion-fast), border-color var(--motion-fast), box-shadow var(--motion-fast), background-color var(--motion-fast);
}

.recent-attempts a,
.recent-attempts > span,
.attempt-chip-delete {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  border-radius: 999px;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 0.46rem 0.7rem;
  font-size: 0.88rem;
  font-weight: 720;
  cursor: pointer;
}

.attempt-chip-delete {
  border: 1px solid color-mix(in srgb, #c33b3b 34%, var(--line));
  background: color-mix(in srgb, #c33b3b 8%, var(--surface));
  color: #8b1e1e;
  font-family: inherit;
}

.recent-attempts a {
  text-decoration: none;
}

.attempt-chip-delete:hover,
.attempt-chip-delete:focus-visible {
  border-color: color-mix(in srgb, #c33b3b 58%, var(--line));
  background: color-mix(in srgb, #c33b3b 13%, var(--surface));
  box-shadow: 0 0 0 3px color-mix(in srgb, #c33b3b 18%, transparent);
}

.recent-attempt-chip form {
  margin: 0;
}

.recent-attempts strong {
  color: var(--ink);
}

.dashboard-level-panel:hover,
.dashboard-level-panel:focus-within {
  box-shadow:
    0 18px 42px color-mix(in srgb, var(--button-bg) 28%, transparent),
    0 36px 74px color-mix(in srgb, var(--button-bg) 18%, transparent);
  transform: translateY(-2px);
}

.dashboard-panel:hover,
.dashboard-panel:focus-within,
.dashboard-stats article:hover,
.dashboard-stats article:focus-within,
.leaderboard-row:hover,
.leaderboard-row:focus-within,
.mission-card:hover,
.mission-card:focus-within,
.recent-attempt-chip:hover,
.recent-attempt-chip:focus-within {
  border-color: color-mix(in srgb, var(--accent) 42%, var(--line));
  box-shadow: 0 18px 42px color-mix(in srgb, var(--shadow) 76%, transparent);
  transform: translateY(-2px);
}

.leaderboard-row.is-current:hover,
.leaderboard-row.is-current:focus-within {
  border-color: color-mix(in srgb, var(--accent) 68%, var(--line));
}

.course-card,
.material-grid .material-card,
.quiz-card,
.roadmap-item,
.material-category-card,
.subject-choice,
.subject-card,
.exam-mode-card {
  transition: transform var(--motion-medium), border-color var(--motion-fast), box-shadow var(--motion-medium), background-color var(--motion-fast);
}

.course-card:hover,
.course-card:focus-within,
.material-grid .material-card:hover,
.material-grid .material-card:focus-within,
.quiz-card:hover,
.quiz-card:focus-within,
.subject-choice:hover,
.subject-choice:focus-within,
.subject-card:hover,
.subject-card:focus-within,
.exam-mode-card:hover,
.exam-mode-card:focus-within {
  border-color: color-mix(in srgb, var(--accent) 48%, var(--line));
  box-shadow: 0 24px 58px color-mix(in srgb, var(--shadow) 82%, transparent);
  transform: translateY(-3px);
}

.roadmap-panel {
  display: grid;
  gap: 1.2rem;
}

.roadmap-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.roadmap-heading h2 {
  margin-bottom: 0.25rem;
}

.roadmap-heading p {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-weight: 650;
}

.roadmap-list {
  display: grid;
  gap: 0.7rem;
}

.roadmap-item {
  position: relative;
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr) minmax(7.8rem, auto);
  gap: 0.9rem;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 92%, var(--soft));
  padding: 0.9rem;
}

a.roadmap-item {
  color: inherit;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

a.roadmap-item:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--gold) 48%, var(--line));
  box-shadow: 0 14px 30px var(--shadow);
}

.roadmap-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.roadmap-item::before {
  position: absolute;
  top: 100%;
  left: 1.85rem;
  width: 2px;
  height: 0.7rem;
  background: var(--line);
  content: "";
}

.roadmap-item:last-child::before {
  display: none;
}

.roadmap-number {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 999px;
  background: var(--button-bg);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 820;
}

.roadmap-item h3 {
  margin: 0 0 0.18rem;
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.25;
}

.roadmap-item p {
  display: -webkit-box;
  overflow: hidden;
  margin: 0;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.36;
}

.roadmap-status {
  display: grid;
  min-width: 0;
  justify-items: end;
  gap: 0.2rem;
}

.roadmap-status span {
  max-width: 100%;
  border-radius: 999px;
  background: color-mix(in srgb, var(--muted) 12%, transparent);
  color: var(--muted);
  padding: 0.26rem 0.62rem;
  font-size: 0.78rem;
  font-weight: 780;
  line-height: 1.15;
  text-align: center;
  white-space: normal;
}

.roadmap-status strong {
  color: var(--ink);
  font-size: 1.05rem;
}

.roadmap-item.is-done {
  border-color: color-mix(in srgb, var(--green) 34%, var(--line));
  background: color-mix(in srgb, var(--green) 8%, var(--surface));
}

.roadmap-item.is-done .roadmap-number,
.roadmap-item.is-done .roadmap-status span {
  background: var(--green);
  color: #fff;
}

.roadmap-item.is-current {
  border-color: color-mix(in srgb, var(--blue) 34%, var(--line));
}

.roadmap-item.is-current .roadmap-number,
.roadmap-item.is-current .roadmap-status span {
  background: color-mix(in srgb, var(--blue) 88%, var(--button-bg));
  color: #fff;
}

.roadmap-page {
  padding: clamp(2.2rem, 5vw, 4rem) 0 clamp(4rem, 7vw, 6rem);
}

.external-platforms-page {
  padding: clamp(2.2rem, 5vw, 4rem) 0 clamp(4rem, 7vw, 6rem);
}

.external-platform-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.external-platform-card {
  display: grid;
  align-content: start;
  gap: 0.85rem;
  min-height: 16rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 18px 48px var(--shadow);
  padding: 1.35rem;
}

.external-platform-card h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  line-height: 1.12;
}

.external-platform-card p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.45;
}

.external-platform-card .button {
  align-self: end;
  justify-self: start;
  margin-top: auto;
}

.roadmap-page-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.4rem;
}

.roadmap-page-heading h1 {
  max-width: none;
  margin-bottom: 0.55rem;
}

.roadmap-page-heading p:not(.eyebrow) {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.roadmap-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(150px, 1fr));
  gap: 0.75rem;
  min-width: min(100%, 360px);
}

.roadmap-summary span {
  display: grid;
  gap: 0.18rem;
  border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--line));
  border-radius: 14px;
  background: var(--surface);
  color: var(--muted);
  padding: 0.85rem;
  font-size: 0.86rem;
  font-weight: 720;
  box-shadow: 0 12px 32px color-mix(in srgb, var(--shadow) 50%, transparent);
}

.roadmap-summary strong {
  color: var(--ink);
  font-size: 1.35rem;
  line-height: 1.05;
}

.download-section {
  padding: 0.8rem 0 clamp(4rem, 7vw, 6rem);
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 460px);
  gap: 1rem;
  align-items: end;
  margin-bottom: 1rem;
}

.toolbar p {
  margin-bottom: 0;
  color: var(--muted);
  font-weight: 680;
}

.search-field {
  display: grid;
  gap: 0.42rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
}

.search-field input {
  width: 100%;
  min-height: 3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  padding: 0.78rem 0.92rem;
  font-size: 0.98rem;
  font-weight: 650;
  outline: none;
}

.search-field input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--cyan) 20%, transparent);
}

.filter-block {
  display: grid;
  gap: 0.8rem;
  margin-bottom: 1.25rem;
}

.task-search {
  display: grid;
  gap: 0.55rem;
  margin: 1.2rem 0 1rem;
  border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--line));
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 94%, var(--soft));
  padding: 0.9rem;
}

.task-search label {
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 800;
}

.task-search-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.task-search input[type="search"] {
  flex: 1 1 18rem;
  min-width: 0;
  min-height: 2.7rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-weight: 650;
  outline: none;
  padding: 0.7rem 0.85rem;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.task-search input[type="search"]:focus {
  border-color: var(--amber);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--amber) 18%, transparent);
}

.task-search-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 680;
}

.subject-select-panel {
  margin-bottom: 1rem;
}

.subject-select-panel > div:first-child {
  margin-bottom: 0.9rem;
}

.subject-select-panel p {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-weight: 650;
}

.subject-select-form {
  display: grid;
  gap: 0.85rem;
}

.subject-select-form-compact {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 92%, var(--soft));
  padding: 0.8rem;
}

.subject-choice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.7rem;
}

.subject-stage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.subject-stage-card {
  display: grid;
  gap: 0.8rem;
  align-content: start;
  min-height: 21rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(150deg, color-mix(in srgb, var(--accent) 8%, transparent), transparent 48%),
    var(--surface);
  padding: 1rem;
}

.subject-stage-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 0.75rem;
}

.subject-stage-head h3 {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.2;
}

.subject-stage-head span {
  display: inline-grid;
  min-width: 2.8rem;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 44%, var(--line));
  border-radius: 999px;
  background: var(--accent-soft);
  padding: 0.28rem 0.52rem;
  color: color-mix(in srgb, var(--accent) 70%, var(--ink));
  font-weight: 800;
}

.subject-choice-grid-nested {
  grid-template-columns: none;
}

.subject-stage-empty {
  margin: 0;
  color: var(--muted);
  font-weight: 650;
}

.subject-choice-carousel {
  display: grid;
  grid-template-rows: auto minmax(12.4rem, 1fr) auto;
  gap: 0.72rem;
  min-height: 16.25rem;
}

.subject-carousel-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
}

.subject-carousel-button {
  display: inline-grid;
  width: 2.45rem;
  height: 2.45rem;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 38%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 92%, var(--accent-soft));
  color: var(--ink);
  cursor: pointer;
  font-size: 1.65rem;
  line-height: 1;
  box-shadow: 0 10px 26px color-mix(in srgb, var(--shadow) 72%, transparent);
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, opacity 160ms ease;
}

.subject-carousel-button:hover,
.subject-carousel-button:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 70%, var(--line));
  background: var(--accent-soft);
  transform: translateY(-1px);
}

.subject-carousel-button:disabled {
  cursor: default;
  opacity: 0.42;
  transform: none;
}

.subject-carousel-position {
  flex: 1;
  min-width: 3.6rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 760;
  text-align: center;
}

.subject-choice-viewport {
  overflow: hidden;
  border-radius: 16px;
  outline: none;
  touch-action: pan-y;
}

.subject-choice-viewport:focus-visible {
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--amber) 18%, transparent);
}

.subject-choice-carousel .subject-choice-grid-nested {
  display: flex;
  gap: 0;
  height: 100%;
  transform: translateX(calc(var(--subject-index, 0) * -100%));
  transition: transform 260ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.subject-choice-carousel .subject-choice {
  flex: 0 0 100%;
  min-height: 12.4rem;
}

.subject-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.32rem;
  min-height: 0.65rem;
}

.subject-choice-carousel.is-single .subject-carousel-controls,
.subject-choice-carousel.is-single .subject-carousel-dots {
  visibility: hidden;
}

.subject-carousel-dot {
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--muted) 28%, transparent);
  transition: width 160ms ease, background 160ms ease;
}

.subject-carousel-dot.is-active {
  width: 1.25rem;
  background: color-mix(in srgb, var(--accent) 70%, var(--ink));
}

.subject-choice {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  padding: 0.8rem;
  cursor: pointer;
}

.subject-choice.is-selected {
  border-color: color-mix(in srgb, var(--gold) 58%, var(--line));
  background: color-mix(in srgb, var(--gold) 8%, var(--surface));
}

.subject-choice input {
  margin-top: 0.2rem;
  accent-color: var(--button-bg);
}

.subject-choice span {
  display: grid;
  gap: 0.15rem;
  min-width: 0;
}

.subject-choice small {
  color: var(--muted);
  font-weight: 620;
  line-height: 1.35;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 0;
}

.category-filters {
  padding-bottom: 0.15rem;
  border-bottom: 1px solid var(--line);
}

.topic-filters .filter {
  min-height: 2.2rem;
  padding-inline: 0.85rem;
  font-size: 0.9rem;
}

.topic-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0 0 1.25rem;
}

.topic-filter a {
  display: inline-flex;
  align-items: center;
  min-height: 2.35rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.topic-filter a:hover,
.topic-filter a:focus-visible,
.topic-filter a.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: #101827;
}

.filter {
  min-height: 2.45rem;
  border-color: var(--line);
  background: var(--surface);
  color: var(--muted);
  padding: 0.56rem 0.95rem;
  font-size: 0.92rem;
  box-shadow: 0 8px 18px color-mix(in srgb, var(--shadow) 46%, transparent);
}

.filter:hover,
.filter:focus-visible,
.filter.is-active {
  border-color: color-mix(in srgb, var(--accent) 54%, var(--line));
  background: var(--accent-soft);
  color: color-mix(in srgb, var(--accent) 46%, var(--ink));
}

.file-board {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 20px 54px var(--shadow);
}

.quiz-preview {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 1.4rem 0 1rem;
  border: 1px solid color-mix(in srgb, var(--cyan) 36%, var(--line));
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--cyan) 12%, transparent), transparent 42%),
    var(--surface);
  padding: clamp(1rem, 2vw, 1.25rem);
}

.quiz-preview h2,
.quiz-card h2,
.attempt-history h2 {
  margin-bottom: 0.4rem;
}

.quiz-preview p {
  margin: 0;
  color: var(--muted);
}

.quiz-preview-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  color: var(--muted);
  font-weight: 700;
  white-space: nowrap;
}

.file-head,
.file-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(78px, 0.16fr) minmax(78px, 0.12fr) minmax(104px, 0.14fr) minmax(12.5rem, 0.22fr);
  gap: clamp(0.9rem, 2vw, 1.45rem);
  align-items: center;
}

.file-head {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 84%, var(--soft));
  padding: 0.82rem 1.35rem;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 740;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.file-list {
  display: grid;
}

.file-row {
  min-height: 5.9rem;
  border-bottom: 1px solid var(--line);
  padding: 1.05rem 1.35rem;
}

.file-row:last-child {
  border-bottom: 0;
}

.file-main {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  gap: 1rem;
}

.file-main > span:last-child {
  min-width: 0;
}

.file-icon {
  display: grid;
  width: 3rem;
  height: 3rem;
  flex: 0 0 auto;
  place-items: center;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--cyan) 14%, var(--surface));
  color: color-mix(in srgb, var(--cyan) 72%, var(--ink));
  font-size: 0.75rem;
  font-weight: 720;
  text-align: center;
  overflow-wrap: anywhere;
}

.file-title {
  display: block;
  color: var(--ink);
  font-weight: 680;
  line-height: 1.28;
  overflow-wrap: anywhere;
}

.file-description {
  display: block;
  color: var(--muted);
  font-size: 0.91rem;
  line-height: 1.42;
  overflow-wrap: anywhere;
}

.file-meta {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 720;
}

.category {
  display: inline-flex;
  width: fit-content;
  max-width: 100%;
  align-items: center;
  justify-self: start;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-soft) 70%, var(--surface));
  color: color-mix(in srgb, var(--accent) 42%, var(--ink));
  padding: 0.34rem 0.68rem;
  font-size: 0.8rem;
  font-weight: 650;
  line-height: 1.18;
  overflow-wrap: anywhere;
}

.download-button {
  min-height: 2.55rem;
  border-color: color-mix(in srgb, var(--button-bg) 82%, var(--accent));
  background: var(--button-bg);
  color: var(--button-text);
  padding: 0.62rem 0.95rem;
  font-size: 0.9rem;
  font-weight: 650;
  box-shadow: 0 10px 22px color-mix(in srgb, var(--button-bg) 22%, transparent);
}

.download-button:hover,
.download-button:focus-visible {
  border-color: var(--button-bg-hover);
  background: var(--button-bg-hover);
  color: #071013;
}

.attempt-row-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
}

.attempt-row-actions form {
  display: inline-flex;
  margin: 0;
}

.attempt-row-actions .button,
.attempt-row-actions .download-button {
  min-width: 7.1rem;
}

.course-topic-filters,
.material-topic-filters {
  margin-bottom: 1.2rem;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
  gap: 1rem;
}

.course-card {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 18px 44px var(--shadow);
}

.course-embed {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #050b13;
}

.course-embed iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.course-card-body {
  display: grid;
  align-content: start;
  gap: 0.65rem;
  padding: 1rem;
}

.course-card-body h2 {
  margin: 0;
  color: var(--ink);
  font-size: 1.15rem;
  line-height: 1.22;
}

.course-card-body p {
  margin: 0;
  color: var(--muted);
  font-weight: 650;
  line-height: 1.45;
}

.course-card-body .button {
  width: fit-content;
}

.exam-topic-filters {
  margin-bottom: 1.2rem;
}

.exam-mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
  gap: 1rem;
}

.exam-mode-card {
  border-color: color-mix(in srgb, var(--accent) 34%, var(--line));
}

.exam-mode-card .quiz-topic {
  width: fit-content;
}

.exam-mode-card form {
  margin: 0;
}

.exam-attempt-history {
  margin-top: clamp(2rem, 4vw, 3rem);
}

.exam-timer {
  display: grid;
  gap: 0.2rem;
  margin-top: 0.85rem;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, var(--line));
  border-left: 0.35rem solid var(--accent);
  border-radius: 12px;
  background: color-mix(in srgb, var(--accent-soft) 52%, var(--surface));
  padding: 0.75rem 0.85rem;
}

.exam-timer span,
.exam-timer small {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0;
  text-transform: uppercase;
}

.exam-timer strong {
  color: var(--ink);
  font-size: 1.45rem;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.exam-timer.is-urgent {
  border-color: color-mix(in srgb, #c2410c 48%, var(--line));
  border-left-color: #c2410c;
  background: color-mix(in srgb, #fed7aa 36%, var(--surface));
}

.exam-timer-free {
  border-color: color-mix(in srgb, var(--cyan) 34%, var(--line));
  border-left-color: var(--cyan);
  background: color-mix(in srgb, var(--cyan) 9%, var(--surface));
}

.messages {
  display: grid;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.message {
  margin: 0;
  border: 1px solid color-mix(in srgb, var(--cyan) 38%, var(--line));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--cyan) 11%, var(--surface));
  color: var(--ink);
  padding: 0.78rem 0.9rem;
  font-weight: 720;
}

.upload-section {
  padding: 0 0 clamp(4rem, 7vw, 6rem);
}

.quiz-section,
.quiz-workspace {
  padding: clamp(2rem, 5vw, 4rem) 0 clamp(4rem, 7vw, 6rem);
}

.quiz-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.quiz-heading-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.6rem;
}

.quiz-context-actions,
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1rem;
}

.result-actions form {
  display: inline-flex;
  margin: 0;
}

.eyebrow {
  margin: 0 0 0.4rem;
  color: color-mix(in srgb, var(--cyan) 72%, var(--ink));
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.quiz-heading h1,
.result-summary h1 {
  max-width: none;
  margin-bottom: 0.5rem;
  font-size: clamp(1.75rem, 2.9vw, 2.45rem);
  font-weight: 720;
  line-height: 1.08;
}

.quiz-nav h1 {
  max-width: none;
  margin-bottom: 0.55rem;
  font-size: clamp(1.45rem, 2vw, 1.85rem);
  font-weight: 740;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.quiz-heading p,
.result-summary p,
.quiz-nav p {
  color: var(--muted);
}

.section-heading-inline {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 0.85rem;
}

.section-heading-inline h2 {
  margin: 0;
  font-size: clamp(1.45rem, 2vw, 1.8rem);
}

.private-quiz-list {
  display: grid;
  gap: 0.8rem;
  margin: 0 0 1.4rem;
}

.personal-subject-tools {
  display: grid;
  gap: 0.9rem;
  margin: 0 0 1.4rem;
  border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--line));
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 92%, var(--accent-soft));
  padding: 1rem;
}

.personal-subject-tools h2 {
  margin: 0;
  font-size: clamp(1.3rem, 1.8vw, 1.65rem);
}

.personal-subject-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.personal-subject-list article {
  display: flex;
  max-width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  padding: 0.65rem 0.75rem 0.65rem 0.9rem;
}

.personal-subject-list article > div {
  min-width: 0;
}

.personal-subject-list article strong,
.personal-subject-list article small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.personal-subject-list article small {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 650;
}

.personal-subject-list form {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 0.55rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  padding: 0.35rem 0.42rem 0.35rem 0.85rem;
}

.personal-subject-list span {
  overflow: hidden;
  max-width: 16rem;
  color: var(--ink);
  font-weight: 760;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.private-quiz-card {
  border-color: color-mix(in srgb, var(--accent) 46%, var(--line));
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent-soft) 58%, var(--surface)), var(--surface));
}

.private-quiz-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}

.private-import-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 1.2rem;
  align-items: start;
}

.private-import-form {
  display: grid;
  gap: 1rem;
}

.private-import-info {
  box-shadow: 0 18px 48px color-mix(in srgb, var(--shadow) 78%, transparent);
}

.private-import-info ul {
  margin: 0;
  padding-left: 1.1rem;
}

.private-import-info li + li {
  margin-top: 0.5rem;
}

.quiz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.quiz-card {
  display: grid;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(150deg, color-mix(in srgb, var(--cyan) 9%, transparent), transparent 48%),
    var(--surface);
  box-shadow: 0 18px 44px var(--shadow);
  padding: 1.1rem;
}

.quiz-topic {
  display: inline-flex;
  margin-bottom: 0.65rem;
  border: 1px solid color-mix(in srgb, var(--cyan) 42%, var(--line));
  border-radius: 999px;
  padding: 0.28rem 0.58rem;
  color: color-mix(in srgb, var(--cyan) 70%, var(--ink));
  font-size: 0.78rem;
  font-weight: 720;
}

.quiz-card p {
  color: var(--muted);
}

.material-folder-list {
  display: grid;
  gap: 1.35rem;
}

.material-category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
}

.material-category-card {
  display: grid;
  min-height: 10rem;
  align-content: space-between;
  gap: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(150deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent 54%),
    var(--surface);
  box-shadow: 0 18px 44px var(--shadow);
  padding: 1.1rem;
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.material-category-card:hover,
.material-category-card:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  box-shadow: 0 24px 58px var(--shadow);
  outline: none;
  transform: translateY(-2px);
}

.material-category-card strong {
  font-family: var(--font-display);
  font-size: 1.45rem;
  line-height: 1.15;
}

.material-category-card small {
  color: var(--muted);
  font-weight: 750;
}

.material-folder {
  display: grid;
  gap: 0.85rem;
  min-width: 0;
}

.material-folder-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.65rem;
}

.material-folder-head h2 {
  margin: 0;
  font-size: clamp(1.35rem, 2.6vw, 2rem);
}

.material-folder-count {
  display: inline-grid;
  min-width: 2.25rem;
  min-height: 2.25rem;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 44%, var(--line));
  border-radius: 999px;
  background: var(--accent-soft);
  color: color-mix(in srgb, var(--accent) 70%, var(--ink));
  font-weight: 800;
}

.material-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  min-width: 0;
}

.material-grid .material-card {
  grid-template-rows: minmax(0, 1fr) auto auto;
  min-height: 24rem;
  gap: 1.15rem;
  overflow: visible;
}

.material-card-body {
  display: grid;
  min-width: 0;
  align-content: start;
  gap: 0.85rem;
}

.material-card .pill {
  justify-self: start;
  max-width: 100%;
  white-space: normal;
}

.material-grid .material-card h3 {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  color: var(--ink);
  font-size: clamp(1.32rem, 1.75vw, 1.72rem);
  line-height: 1.16;
  overflow-wrap: anywhere;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.material-grid .material-card p {
  display: -webkit-box;
  min-height: 0;
  margin: 0;
  overflow: hidden;
  color: var(--muted);
  line-height: 1.42;
  overflow-wrap: anywhere;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.material-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7.5rem, 1fr));
  gap: 0.55rem;
  min-width: 0;
  margin: 0;
}

.material-meta div {
  display: grid;
  min-width: 0;
  min-height: 4.3rem;
  align-content: start;
  gap: 0.22rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: color-mix(in srgb, var(--surface) 82%, var(--soft));
  padding: 0.68rem 0.72rem;
}

.material-meta dt {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 820;
  letter-spacing: 0;
  line-height: 1.1;
  text-transform: uppercase;
}

.material-meta dd {
  display: -webkit-box;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  color: var(--ink);
  font-size: clamp(0.92rem, 1vw, 1rem);
  font-weight: 780;
  line-height: 1.25;
  overflow-wrap: anywhere;
  word-break: break-word;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.material-download-button {
  align-self: end;
  width: 100%;
  min-width: 0;
  white-space: normal;
}

.download-section .quiz-heading,
.download-section .quiz-heading > div:first-child {
  min-width: 0;
}

.download-section .quiz-heading h1 {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.material-empty {
  box-shadow: none;
}

.module-grid {
  margin-bottom: 1.2rem;
}

.module-card {
  border-color: color-mix(in srgb, var(--accent) 42%, var(--line));
  background:
    linear-gradient(150deg, color-mix(in srgb, var(--accent) 14%, transparent), transparent 48%),
    var(--surface);
}

.module-card-actions,
.module-backbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
}

.module-backbar {
  margin: 0 0 1.2rem;
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 88%, var(--soft));
}

.quiz-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  margin: 0;
}

.quiz-meta div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.65rem;
}

.quiz-meta dt {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
}

.quiz-meta dd {
  margin: 0.2rem 0 0;
  color: var(--ink);
  font-weight: 760;
}

.attempt-history {
  margin-top: clamp(2rem, 5vw, 3rem);
}

.quiz-attempt-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.38fr) minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 1.5rem);
  align-items: start;
}

.quiz-nav,
.result-summary {
  position: sticky;
  top: calc(var(--header-height) + 1rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 18px 44px var(--shadow);
  padding: 1rem;
}

.question-map {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(2.3rem, 1fr));
  gap: 0.45rem;
  margin-top: 1rem;
}

.dataset-link {
  display: inline-flex;
  margin-top: 0.65rem;
  color: color-mix(in srgb, var(--cyan) 72%, var(--ink));
  font-weight: 720;
}

.dataset-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid color-mix(in srgb, var(--cyan) 34%, var(--line));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--cyan) 8%, var(--surface));
  padding: 0.9rem 1rem;
}

.quiz-mascot-callout {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.8rem;
  min-width: 0;
}

.quiz-mascot-callout-ronny {
  margin-bottom: 1rem;
  border: 1px solid color-mix(in srgb, var(--cyan) 28%, var(--line));
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--cyan) 10%, transparent), transparent 64%),
    color-mix(in srgb, var(--surface) 94%, var(--cyan));
  padding: 0.8rem;
}

.quiz-mascot {
  width: clamp(4.6rem, 9vw, 6.5rem);
  height: clamp(4.6rem, 9vw, 6.5rem);
  object-fit: contain;
  filter: drop-shadow(0 12px 22px color-mix(in srgb, var(--ink) 18%, transparent));
}

.quiz-mascot-callout-ace .quiz-mascot {
  width: clamp(4.2rem, 8vw, 5.8rem);
  height: clamp(4.2rem, 8vw, 5.8rem);
}

.quiz-mascot-copy {
  display: grid;
  gap: 0.55rem;
  min-width: 0;
}

.quiz-speech-bubble {
  position: relative;
  max-width: 48rem;
  margin: 0;
  border: 1px solid color-mix(in srgb, var(--cyan) 38%, var(--line));
  border-radius: calc(var(--radius) + 0.25rem);
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 14px 32px color-mix(in srgb, var(--shadow) 78%, transparent);
  padding: 0.72rem 0.85rem;
  font-size: 0.92rem;
  font-weight: 680;
  line-height: 1.42;
  opacity: 0;
  transform: translateY(0.4rem) scale(0.98);
  animation: quiz-speech-pop 520ms ease 1.25s forwards;
}

.quiz-speech-bubble::before {
  position: absolute;
  top: 1.05rem;
  left: -0.48rem;
  width: 0.85rem;
  height: 0.85rem;
  border-bottom: 1px solid color-mix(in srgb, var(--cyan) 38%, var(--line));
  border-left: 1px solid color-mix(in srgb, var(--cyan) 38%, var(--line));
  background: var(--surface);
  content: "";
  transform: rotate(45deg);
}

@keyframes quiz-speech-pop {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.dataset-callout strong,
.dataset-callout span {
  display: block;
}

.dataset-callout span {
  margin-top: 0.15rem;
  color: var(--muted);
  font-weight: 620;
}

.quiz-intro-card {
  display: grid;
  gap: 1rem;
  border: 1px solid color-mix(in srgb, var(--cyan) 30%, var(--line));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--cyan) 11%, var(--surface));
  padding: clamp(1rem, 2vw, 1.35rem);
}

.quiz-intro-body {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 620;
  line-height: 1.58;
}

.quiz-intro-card .button {
  justify-self: start;
}

.ace-card-open {
  white-space: nowrap;
}

.ace-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 2rem);
}

.ace-overlay[hidden] {
  display: none;
}

.ace-overlay-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(3, 8, 16, 0.68);
  backdrop-filter: blur(8px);
  cursor: pointer;
}

.ace-dialog {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(100%, 34rem);
  gap: 1rem;
  border: 1px solid color-mix(in srgb, var(--cyan) 42%, var(--line));
  border-radius: calc(var(--radius) + 0.35rem);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--cyan) 10%, transparent), transparent 58%),
    var(--surface);
  box-shadow: 0 34px 92px rgba(0, 0, 0, 0.38);
  padding: clamp(1rem, 3vw, 1.35rem);
}

.ace-dialog-head {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding-right: 2.6rem;
}

.ace-dialog-head img {
  width: 4.2rem;
  height: 4.2rem;
  object-fit: contain;
  filter: drop-shadow(0 14px 22px color-mix(in srgb, var(--ink) 20%, transparent));
}

.ace-dialog-head p {
  margin: 0 0 0.1rem;
  color: color-mix(in srgb, var(--cyan) 76%, var(--ink));
  font-size: 0.78rem;
  font-weight: 820;
  letter-spacing: 0;
  text-transform: uppercase;
}

.ace-dialog-head h2 {
  margin: 0;
  font-size: clamp(1.55rem, 5vw, 2.15rem);
  line-height: 1.05;
}

.ace-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  display: inline-grid;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font-size: 1.45rem;
  font-weight: 680;
  line-height: 1;
  padding: 0;
  text-align: center;
}

.ace-close:hover,
.ace-close:focus-visible {
  border-color: color-mix(in srgb, var(--cyan) 62%, var(--line));
  background: var(--accent-soft);
}

.ace-flip-card {
  position: relative;
  display: block;
  width: 100%;
  min-height: 22rem;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  perspective: 1100px;
  text-align: left;
}

.ace-card-face {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: start;
  gap: 0.75rem;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--cyan) 44%, var(--line));
  border-radius: calc(var(--radius) + 0.4rem);
  background:
    repeating-linear-gradient(
      0deg,
      transparent 0,
      transparent 2.05rem,
      color-mix(in srgb, var(--cyan) 15%, transparent) 2.1rem
    ),
    linear-gradient(135deg, #fffdf8, color-mix(in srgb, var(--accent-soft) 72%, #ffffff));
  box-shadow: 0 24px 60px color-mix(in srgb, var(--shadow) 86%, transparent);
  padding: clamp(1.05rem, 4vw, 1.45rem);
  backface-visibility: hidden;
  transform-style: preserve-3d;
  transition: transform 520ms cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 180ms ease;
}

.ace-card-back {
  transform: rotateY(180deg);
}

.ace-flip-card.is-flipped .ace-card-front {
  transform: rotateY(-180deg);
}

.ace-flip-card.is-flipped .ace-card-back {
  transform: rotateY(0);
}

.ace-flip-card:focus-visible .ace-card-face,
.ace-flip-card:hover .ace-card-face {
  box-shadow: 0 30px 72px color-mix(in srgb, var(--shadow) 100%, transparent);
}

.ace-card-kicker,
.ace-card-hint {
  display: inline-flex;
  width: fit-content;
  border: 1px solid color-mix(in srgb, var(--cyan) 40%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 88%, var(--accent-soft));
  padding: 0.28rem 0.55rem;
  color: color-mix(in srgb, var(--cyan) 72%, var(--ink));
  font-size: 0.75rem;
  font-weight: 820;
  letter-spacing: 0;
  text-transform: uppercase;
}

.ace-card-face strong {
  display: block;
  color: var(--ink);
  font-size: clamp(1.35rem, 4vw, 1.75rem);
  line-height: 1.1;
}

.ace-card-face ul {
  display: grid;
  gap: 0.62rem;
  margin: 0;
  padding-left: 1.2rem;
  color: var(--ink);
  font-size: clamp(0.98rem, 3vw, 1.08rem);
  font-weight: 680;
  line-height: 1.42;
}

.ace-card-hint {
  align-self: end;
  margin-top: auto;
  color: var(--muted);
  text-transform: none;
}

body.ace-overlay-open {
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
  .ace-card-face {
    transition: none;
  }
}

.question-map a {
  display: grid;
  min-height: 2.3rem;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--cyan) 8%, var(--surface));
  font-weight: 760;
}

.quiz-form {
  display: grid;
  gap: 1rem;
}

.quiz-attempt-page .quiz-form {
  padding-bottom: clamp(6.5rem, 12vh, 8.5rem);
}

.exam-download-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(0.9rem, 2vw, 1.25rem);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line));
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent-soft) 45%, transparent), transparent 72%),
    var(--surface);
  box-shadow: 0 18px 48px color-mix(in srgb, var(--shadow) 75%, transparent);
  padding: clamp(1rem, 2vw, 1.25rem);
}

.exam-download-card h2,
.exam-download-card p {
  margin: 0;
}

.exam-download-card h2 {
  margin-top: 0.18rem;
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.18;
}

.exam-download-card p {
  margin-top: 0.35rem;
  color: var(--muted);
  font-weight: 640;
  line-height: 1.45;
}

.question-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 18px 44px var(--shadow);
  padding: clamp(1rem, 2vw, 1.25rem);
}

.question-card header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.8rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 720;
  text-transform: uppercase;
}

.question-card h2 {
  margin-bottom: 0.7rem;
  font-size: clamp(1.25rem, 1.9vw, 1.65rem);
  font-weight: 700;
  line-height: 1.18;
}

.question-prompt {
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.question-resources {
  display: grid;
  gap: 0.85rem;
  margin-top: 1rem;
}

.question-resource {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--surface-soft);
}

.question-resource img {
  display: block;
  width: 100%;
  max-height: 720px;
  object-fit: contain;
  background: #fff;
}

.question-resource figcaption {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 650;
  padding: 0.55rem 0.75rem;
}

.answer-fields {
  margin-top: 1rem;
}

.answer-format-hint {
  display: inline-flex;
  width: fit-content;
  max-width: 100%;
  margin-top: 0.75rem;
  border: 1px solid color-mix(in srgb, var(--accent) 38%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-soft) 54%, var(--surface));
  color: var(--ink);
  padding: 0.46rem 0.7rem;
  font-size: 0.88rem;
  font-weight: 680;
  overflow-wrap: anywhere;
}

.answer-fields ul {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.answer-fields li,
.result-choices li {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 92%, var(--cyan));
  padding: 0.75rem;
}

.answer-fields label {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  margin: 0;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 620;
  text-transform: none;
}

.answer-fields input[type="radio"],
.answer-fields input[type="checkbox"] {
  width: auto;
  min-height: auto;
  margin-top: 0.25rem;
}

.matrix-answer {
  display: grid;
  gap: 0.65rem;
  border: 0;
  margin: 0;
  padding: 0;
}

.matrix-answer legend {
  color: var(--muted);
  font-weight: 720;
}

.matrix-answer-table {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.matrix-answer-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 7.25rem 7.25rem;
  min-height: 3.3rem;
  border-top: 1px solid var(--line);
}

.matrix-answer-row:first-child {
  border-top: 0;
}

.matrix-answer-head {
  min-height: 2.7rem;
  background: color-mix(in srgb, var(--accent-soft) 72%, var(--surface));
  color: color-mix(in srgb, var(--ink) 86%, var(--accent));
  font-size: 0.82rem;
  font-weight: 820;
  text-transform: uppercase;
}

.matrix-answer-row > span,
.matrix-choice {
  display: flex;
  align-items: center;
  border-left: 1px solid var(--line);
  padding: 0.72rem;
}

.matrix-answer-row > span:first-child {
  border-left: 0;
}

.matrix-statement {
  line-height: 1.35;
}

.matrix-choice {
  justify-content: center;
  gap: 0.45rem;
  font-weight: 760;
}

.matrix-choice input {
  accent-color: var(--button-bg);
}

.matrix-result .is-correct {
  background: color-mix(in srgb, var(--green) 10%, var(--surface));
  color: color-mix(in srgb, var(--green) 70%, var(--ink));
  font-weight: 800;
}

.matrix-result .is-user-correct {
  background: color-mix(in srgb, var(--green) 12%, var(--surface));
}

.matrix-result .is-user-wrong {
  background: color-mix(in srgb, #d43f3a 13%, var(--surface));
  color: color-mix(in srgb, #d43f3a 74%, var(--ink));
  font-weight: 800;
}

.code-answer {
  display: grid;
  gap: 0.55rem;
}

.code-answer label {
  display: block;
  font-weight: 760;
}

.code-answer-field,
.code-result-output {
  width: 100%;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.92rem;
  line-height: 1.55;
  tab-size: 4;
}

.code-answer-field {
  min-height: 18rem;
  resize: vertical;
  white-space: pre;
  overflow: auto;
}

.code-result-grid {
  display: grid;
  gap: 0.8rem;
  margin-top: 1rem;
}

.code-target-output {
  display: grid;
  gap: 0.45rem;
  margin-top: 1rem;
}

.code-result-grid > div {
  display: grid;
  gap: 0.45rem;
}

.code-result-output {
  max-height: 22rem;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--ink) 4%, var(--surface));
  color: var(--ink);
  padding: 0.8rem;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.ordering-answer {
  display: grid;
  gap: 0.55rem;
}

.ordering-help {
  margin-top: 0.65rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 660;
}

.matching-answer {
  display: grid;
  gap: 0.7rem;
}

.answer-fields .matching-row {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(12rem, 0.8fr);
  align-items: center;
  gap: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 92%, var(--cyan));
  padding: 0.72rem 0.8rem;
}

.matching-row span {
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.ordering-choice {
  display: grid;
  grid-template-columns: 2rem 1fr;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 92%, var(--cyan));
  color: var(--ink);
  padding: 0.72rem 0.8rem;
  text-align: left;
  font-size: 1rem;
  line-height: 1.45;
}

.ordering-choice.is-selected {
  border-color: color-mix(in srgb, var(--cyan) 60%, var(--line));
  background: color-mix(in srgb, var(--cyan) 14%, var(--surface));
}

.ordering-rank {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, var(--line));
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font-weight: 760;
}

.subquestion-answer {
  display: grid;
  gap: 1rem;
  margin: 0;
  border: 0;
  padding: 0;
}

.subquestion-answer legend {
  margin-bottom: 0.2rem;
  color: var(--muted);
  font-weight: 760;
}

.subquestion-answer-row {
  display: grid;
  gap: 0.65rem;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 94%, var(--accent-soft));
  padding: clamp(0.9rem, 2vw, 1rem);
}

.subquestion-answer-prompt {
  display: grid;
  gap: 0.35rem;
  line-height: 1.5;
}

.subquestion-answer-prompt strong {
  color: color-mix(in srgb, var(--accent) 82%, var(--ink));
  font-size: 0.95rem;
}

.subquestion-answer-prompt span {
  color: var(--ink);
  font-weight: 650;
}

.subquestion-answer-prompt em {
  justify-self: start;
  border: 1px solid color-mix(in srgb, var(--accent) 36%, var(--line));
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  padding: 0.18rem 0.55rem;
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 760;
}

.subquestion-answer-field {
  min-height: 7rem;
  resize: vertical;
}

.subquestion-result-list {
  display: grid;
  gap: 0.8rem;
}

.subquestion-result-row {
  display: grid;
  gap: 0.55rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 96%, var(--cyan));
  padding: 0.9rem;
}

.subquestion-result-row h3,
.subquestion-result-row p {
  margin: 0;
}

.subquestion-result-row h3 {
  font-size: 1rem;
}

.subquestion-result-row h3 span {
  color: var(--muted);
  font-size: 0.86rem;
}

.quiz-submit-bar {
  position: sticky;
  bottom: max(0.75rem, env(safe-area-inset-bottom));
  z-index: 45;
  display: flex;
  justify-content: flex-end;
  gap: 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow: 0 -10px 32px var(--shadow);
  padding: 0.85rem;
  backdrop-filter: blur(14px);
}

.quiz-attempt-page .quiz-submit-bar {
  bottom: max(0.75rem, env(safe-area-inset-bottom));
}

.result-summary {
  position: static;
  margin-bottom: 1rem;
}

.result-xp-line {
  width: fit-content;
  max-width: 100%;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 13%, var(--surface));
  color: var(--accent-strong) !important;
  padding: 0.42rem 0.68rem;
  font-weight: 820;
}

.result-choices {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.result-choices li.is-selected {
  border-color: color-mix(in srgb, var(--cyan) 60%, var(--line));
}

.result-choices li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.result-choice-text {
  min-width: 0;
}

.result-choices li.is-correct {
  border-color: color-mix(in srgb, #15803d 52%, var(--line));
  background: var(--surface);
}

.result-choices li.is-wrong {
  border-color: color-mix(in srgb, #dc2626 42%, var(--line));
  background: var(--surface);
}

.result-choices li.is-selected.is-user-correct,
.written-answer.is-user-correct {
  border-color: color-mix(in srgb, #15803d 46%, var(--line));
  background: color-mix(in srgb, #22c55e 13%, var(--surface));
  color: var(--ink);
}

.result-choices li.is-selected.is-user-wrong,
.written-answer.is-user-wrong {
  border-color: color-mix(in srgb, #dc2626 42%, var(--line));
  background: color-mix(in srgb, #ef4444 11%, var(--surface));
  color: var(--ink);
}

.written-answer.is-self-check {
  border-color: color-mix(in srgb, var(--accent) 44%, var(--line));
  background: color-mix(in srgb, var(--accent-soft) 70%, var(--surface));
  color: var(--ink);
}

.written-answer,
.correct-answer,
.question-explanation {
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 92%, var(--cyan));
  padding: 0.85rem;
}

.written-answer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.answer-badge {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.25rem 0.58rem;
  font-size: 0.76rem;
  font-weight: 820;
  line-height: 1;
}

.answer-badge-correct {
  border: 1px solid color-mix(in srgb, #15803d 50%, var(--line));
  background: color-mix(in srgb, #22c55e 17%, var(--surface));
  color: #166534;
}

.answer-badge-wrong {
  border: 1px solid color-mix(in srgb, #dc2626 46%, var(--line));
  background: color-mix(in srgb, #ef4444 13%, var(--surface));
  color: #991b1b;
}

.question-explanation {
  color: var(--muted);
}

.correct-answer {
  border-color: color-mix(in srgb, #15803d 52%, var(--line));
  background: var(--surface);
}

.upload-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1.15fr);
  gap: clamp(1.4rem, 4vw, 3rem);
  align-items: start;
  border-top: 1px solid var(--line);
  padding-top: clamp(2rem, 5vw, 3.5rem);
}

.upload-grid p {
  color: var(--muted);
}

.upload-form,
.account-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 20px 54px var(--shadow);
  padding: clamp(1.15rem, 3vw, 1.7rem);
}

.upload-form p,
.account-card p {
  margin: 0 0 0.95rem;
}

.account-card form .button {
  margin-top: 0.35rem;
}

.celebration-overlay {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 50% 25%, color-mix(in srgb, var(--accent) 28%, transparent), transparent 28rem),
    rgba(3, 13, 27, 0.64);
  padding: 1rem;
  backdrop-filter: blur(10px);
}

.celebration-overlay.is-closing {
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

.celebration-card {
  position: relative;
  width: min(100%, 31rem);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, var(--line));
  border-radius: 22px;
  background: var(--surface);
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.28);
  padding: clamp(1.3rem, 5vw, 2rem);
  text-align: center;
  transform: translateY(18px) scale(0.96);
  animation: celebration-pop 420ms cubic-bezier(0.2, 0.9, 0.24, 1.22) forwards;
}

.celebration-kicker {
  display: inline-flex;
  margin: 0 auto 0.7rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 16%, var(--surface));
  color: var(--button-bg);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 0.42rem 0.75rem;
  text-transform: uppercase;
}

.celebration-card h2 {
  max-width: none;
  margin: 0;
  color: var(--ink);
  font-size: clamp(2rem, 8vw, 3rem);
  line-height: 1;
}

.celebration-copy {
  margin: 0.8rem auto 1.3rem;
  max-width: 32ch;
  color: var(--muted);
  font-weight: 500;
}

.celebration-level,
.celebration-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.celebration-level {
  margin-bottom: 0.5rem;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.celebration-level strong {
  color: var(--button-bg);
  font-size: 1.35rem;
}

.celebration-xp {
  height: 1rem;
  overflow: hidden;
  border-radius: 999px;
  background: color-mix(in srgb, var(--line) 72%, var(--surface));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--line) 80%, transparent);
}

.celebration-xp span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--cyan-strong));
  box-shadow: 0 0 22px color-mix(in srgb, var(--accent) 45%, transparent);
  transition: width 1300ms cubic-bezier(0.18, 0.82, 0.24, 1);
}

.celebration-overlay.is-running .celebration-xp span {
  width: var(--xp-target);
}

.celebration-meta {
  margin: 0.85rem 0 1.35rem;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 650;
}

.celebration-meta strong {
  color: var(--ink);
}

.celebration-particles span {
  position: absolute;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 3px;
  background: var(--accent);
  opacity: 0;
}

.celebration-particles span:nth-child(1) { left: 12%; top: 18%; }
.celebration-particles span:nth-child(2) { left: 24%; top: 10%; background: var(--cyan-strong); }
.celebration-particles span:nth-child(3) { right: 18%; top: 14%; }
.celebration-particles span:nth-child(4) { right: 10%; top: 34%; background: var(--cyan-strong); }
.celebration-particles span:nth-child(5) { left: 14%; bottom: 26%; }
.celebration-particles span:nth-child(6) { right: 22%; bottom: 18%; background: var(--cyan-strong); }

.celebration-overlay.is-running .celebration-particles span {
  animation: celebration-spark 900ms ease-out forwards;
}

.celebration-overlay.is-running .celebration-particles span:nth-child(2) { animation-delay: 90ms; }
.celebration-overlay.is-running .celebration-particles span:nth-child(3) { animation-delay: 140ms; }
.celebration-overlay.is-running .celebration-particles span:nth-child(4) { animation-delay: 210ms; }
.celebration-overlay.is-running .celebration-particles span:nth-child(5) { animation-delay: 260ms; }
.celebration-overlay.is-running .celebration-particles span:nth-child(6) { animation-delay: 320ms; }

@keyframes celebration-pop {
  to {
    transform: translateY(0) scale(1);
  }
}

@keyframes celebration-spark {
  0% {
    opacity: 0;
    transform: translateY(0) rotate(0deg) scale(0.7);
  }
  25% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateY(-2.4rem) rotate(160deg) scale(1);
  }
}

.upload-form label,
.account-card label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
}

.form-control,
.upload-form input,
.upload-form select,
.upload-form textarea,
.account-card input,
.account-card select,
.account-card textarea {
  width: 100%;
  min-height: 2.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  padding: 0.72rem 0.82rem;
  font-size: 0.98rem;
  font-weight: 650;
}

.upload-form textarea,
.account-card textarea {
  min-height: 6rem;
}

.upload-form input[type="file"] {
  padding: 0.58rem 0.82rem;
}

.helptext,
.account-card ul {
  color: var(--muted);
  font-size: 0.88rem;
}

.errorlist {
  margin: 0 0 0.8rem;
  color: #c2410c;
  font-weight: 620;
}

.account-shell {
  display: grid;
  width: min(100% - 2rem, 520px);
  min-height: 100vh;
  align-content: center;
  gap: 1rem;
  margin-inline: auto;
  padding-block: 2rem;
}

.account-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.account-brand {
  justify-self: start;
}

.account-card h1,
.account-card h2 {
  max-width: none;
  margin-bottom: 0.85rem;
  font-size: clamp(1.7rem, 3.6vw, 2.3rem);
  font-weight: 720;
  line-height: 1.14;
}

.account-copy {
  color: var(--muted);
  font-size: 1rem;
}

.account-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin-top: 1rem;
  color: color-mix(in srgb, var(--accent) 72%, var(--ink));
  font-weight: 650;
}

.account-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1rem;
}

.account-card .button + .button {
  margin-left: 0.5rem;
}

.account-actions .button + .button {
  margin-left: 0;
}

.email-options {
  display: grid;
  gap: 0.75rem;
  margin-block: 1rem;
}

.email-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 92%, var(--cyan));
  padding: 0.8rem;
  text-transform: none;
}

.email-option input {
  width: auto;
  min-height: auto;
}

.email-option strong,
.email-option small {
  display: block;
}

.email-option small {
  margin-top: 0.18rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 760;
}

.empty-state {
  padding: clamp(2rem, 5vw, 3.5rem);
  text-align: center;
}

.empty-state strong {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 1.25rem;
}

.empty-state p {
  max-width: 560px;
  margin-inline: auto;
  color: var(--muted);
}

.legal-main {
  padding: clamp(2.4rem, 6vw, 4.5rem) 0;
}

.legal-hero {
  display: grid;
  gap: 0.8rem;
  max-width: 760px;
  margin-bottom: clamp(1.6rem, 4vw, 2.4rem);
}

.legal-hero h1 {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: clamp(2.45rem, 7vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.legal-hero p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  font-weight: 650;
}

.legal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 17rem;
  gap: clamp(1.2rem, 4vw, 2rem);
  align-items: start;
}

.legal-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 96%, var(--accent-soft));
  box-shadow: 0 18px 54px var(--shadow);
  padding: clamp(1.2rem, 3.5vw, 2rem);
}

.legal-section {
  display: grid;
  gap: 0.7rem;
  padding: 1.1rem 0;
  border-top: 1px solid var(--line);
}

.legal-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.legal-section:last-child {
  padding-bottom: 0;
}

.legal-section h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.18rem, 2vw, 1.45rem);
  line-height: 1.2;
}

.legal-section h3 {
  margin: 0.25rem 0 0;
  color: var(--ink);
  font-size: 1rem;
}

.legal-section p,
.legal-section li {
  color: var(--text);
}

.legal-section p,
.legal-section ul {
  margin: 0;
}

.legal-section ul {
  padding-left: 1.1rem;
}

.legal-address {
  display: grid;
  gap: 0.35rem;
  color: var(--text);
  font-style: normal;
}

.legal-address a,
.legal-section a {
  color: var(--button-bg);
  font-weight: 750;
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

.legal-aside {
  position: sticky;
  top: calc(var(--header-height) + 1rem);
  display: grid;
  gap: 0.7rem;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
  border-radius: 14px;
  background: color-mix(in srgb, var(--accent-soft) 72%, var(--surface));
  padding: 1rem;
}

.legal-aside strong {
  color: var(--ink);
}

.legal-aside a {
  display: block;
  color: var(--text);
  font-weight: 720;
}

.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}

.footer-inner {
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-weight: 700;
}

.footer-inner nav {
  gap: 1rem;
}

@keyframes dashboardFadeUp {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.992);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes dashboardRailIn {
  from {
    opacity: 0;
    transform: translateX(-16px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes progressSheen {
  0% {
    transform: translateX(-115%);
  }
  56%,
  100% {
    transform: translateX(120%);
  }
}

@keyframes flameFlicker {
  0%,
  100% {
    transform: translateY(0) rotate(-1deg) scale(1);
  }
  24% {
    transform: translateY(-1px) rotate(2deg) scale(1.08, 0.96);
  }
  48% {
    transform: translateY(1px) rotate(-3deg) scale(0.95, 1.08);
  }
  72% {
    transform: translateY(-1px) rotate(1deg) scale(1.04, 0.98);
  }
}

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--cyan) 45%, transparent);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-delay: 0ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-delay: 0ms !important;
    transition-duration: 0.01ms !important;
  }

  .button:hover,
  .download-button:hover,
  .quiz-card:hover,
  .course-card:hover,
  .material-grid .material-card:hover,
  .dashboard-level-panel:hover,
  .dashboard-panel:hover,
  .focus-item:hover,
  .task-item:hover,
  .recent-attempt-chip:hover,
  .week-strip span:hover {
    transform: none !important;
  }
}

@media (max-width: 900px) {
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .legal-aside {
    position: static;
  }

  .hero-grid,
  .toolbar,
  .upload-grid,
  .quiz-attempt-layout,
  .dashboard-frame,
  .dashboard-grid,
  .dashboard-home-grid,
  .dashboard-support-grid {
    grid-template-columns: 1fr;
  }

  .mission-grid {
    grid-template-columns: 1fr;
  }

  .has-dashboard-rail .site-header .nav {
    display: none;
  }

  .dashboard-menu-toggle {
    position: sticky;
    top: calc(var(--header-height) + 0.65rem);
    z-index: 18;
    display: inline-flex;
    width: fit-content;
    align-items: center;
    gap: 0.55rem;
    margin: 0.85rem 0 0 0.85rem;
    border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--line));
    border-radius: 999px;
    background: var(--surface);
    color: var(--ink);
    padding: 0.62rem 0.85rem;
    cursor: pointer;
    font: inherit;
    font-weight: 780;
    box-shadow: 0 14px 36px var(--shadow);
  }

  .dashboard-menu-toggle span,
  .dashboard-menu-toggle span::before,
  .dashboard-menu-toggle span::after {
    display: block;
    width: 1rem;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    content: "";
  }

  .dashboard-menu-toggle span {
    position: relative;
  }

  .dashboard-menu-toggle span::before {
    position: absolute;
    top: -0.36rem;
  }

  .dashboard-menu-toggle span::after {
    position: absolute;
    top: 0.36rem;
  }

  .dashboard-menu-backdrop {
    position: fixed;
    inset: 0;
    z-index: 78;
    display: block;
    background: rgba(6, 31, 61, 0.36);
    backdrop-filter: blur(3px);
  }

  .dashboard-menu-backdrop[hidden] {
    display: none;
  }

  .dashboard-menu-close {
    display: grid;
    width: 2.45rem;
    height: 2.45rem;
    place-items: center;
    justify-self: end;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-size: 1.4rem;
    line-height: 1;
  }

  .dashboard-rail {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 80;
    display: grid;
    width: min(84vw, 340px);
    min-height: 100vh;
    max-height: none;
    align-content: start;
    gap: 1.2rem;
    overflow-y: auto;
    padding: 1rem;
    border-radius: 0 22px 22px 0;
    box-shadow: 24px 0 60px rgba(0, 0, 0, 0.28);
    transform: translateX(-105%);
    transition: transform 180ms ease;
  }

  .dashboard-menu-open .dashboard-rail {
    transform: translateX(0);
  }

  .rail-logo {
    width: 4.25rem;
    height: 4.25rem;
    justify-self: start;
  }

  .rail-nav {
    display: grid;
    gap: 0.5rem;
  }

  .dashboard-mascot {
    display: none;
  }

  .dashboard-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-level-panel {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .recent-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .roadmap-page-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .recent-attempts {
    justify-content: flex-start;
  }

  .roadmap-heading {
    flex-direction: column;
  }

  .roadmap-item {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .roadmap-status {
    grid-column: 2;
    justify-items: start;
  }

  .quiz-nav {
    position: static;
  }

  .file-head {
    display: none;
  }

  .file-list {
    gap: 0;
  }

  .file-row {
    grid-template-columns: 1fr auto;
    gap: 0.75rem;
    align-items: start;
  }

  .file-row .category,
  .file-row .file-meta {
    grid-column: 1 / -1;
  }

  .download-button {
    grid-column: 2;
    grid-row: 1;
  }

  .attempt-row-actions {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  :root {
    --header-height: auto;
  }

  .matrix-answer-row {
    grid-template-columns: minmax(0, 1fr) 5.4rem 5.4rem;
  }

  .matrix-answer-row > span,
  .matrix-choice {
    padding: 0.58rem;
  }

  .matrix-choice {
    font-size: 0.88rem;
  }

  .header-inner {
    flex-wrap: wrap;
    padding-block: 0.85rem;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
    gap: 0.75rem;
  }

  .header-actions .button {
    display: none;
  }

  .platform-tabs {
    order: 3;
    display: flex;
    width: 100%;
    margin-left: 0;
    overflow-x: auto;
  }

  .subjects-menu-panel {
    left: auto;
    right: 0;
  }

  .platform-actions {
    margin-left: auto;
  }

  .account-menu-panel {
    right: -0.25rem;
    min-width: min(18rem, calc(100vw - 1.5rem));
  }

  .hero {
    padding-top: 2.4rem;
  }

  .topic-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .study-dashboard {
    padding-top: 1rem;
  }

  .dashboard-frame {
    border-radius: 18px;
  }

  .dashboard-main {
    padding: 1rem;
  }

  .roadmap-summary {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .dashboard-welcome {
    min-height: auto;
    align-items: flex-start;
    flex-direction: column;
  }

  .dashboard-avatar {
    width: 3rem;
    height: 3rem;
    font-size: 1.1rem;
  }

  .dashboard-stats {
    grid-template-columns: 1fr;
  }

  .answer-fields .matching-row {
    grid-template-columns: 1fr;
  }

  .dashboard-level-panel {
    grid-template-columns: 1fr;
  }

  .level-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .level-actions .button {
    width: 100%;
  }

  .level-actions > span {
    white-space: normal;
  }

  .level-orb {
    justify-self: start;
  }

  .level-metrics,
  .compact-progress-stats,
  .section-heading-row {
    align-items: stretch;
    flex-direction: column;
  }

  .level-metrics,
  .compact-progress-stats {
    display: grid;
    grid-template-columns: 1fr;
  }

  .mission-card > div,
  .focus-item {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .mission-card em,
  .focus-item em {
    grid-column: 2;
    justify-self: start;
  }

  .progress-row {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .progress-track,
  .progress-row small {
    grid-column: 1 / -1;
  }

  .task-item {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .task-item small {
    grid-column: 2;
    justify-self: start;
  }

  .roadmap-item {
    align-items: flex-start;
  }

  .roadmap-status {
    min-width: 0;
  }

  .quiz-preview,
  .quiz-preview-actions,
  .quiz-heading,
  .exam-download-card,
  .quiz-submit-bar {
    align-items: stretch;
    flex-direction: column;
  }

  .exam-download-card {
    grid-template-columns: 1fr;
  }

  .quiz-heading-actions,
  .quiz-heading-actions .button {
    width: 100%;
  }

  .task-search-row {
    align-items: stretch;
    flex-direction: column;
  }

  .task-search input[type="search"],
  .task-search-row .button {
    width: 100%;
  }

  .private-import-layout {
    grid-template-columns: 1fr;
  }

  .signal-orbit {
    width: 3.7rem;
    height: 3.7rem;
  }

  .file-row {
    grid-template-columns: 1fr;
  }

  .download-button {
    grid-column: 1;
    grid-row: auto;
    width: 100%;
  }

  .attempt-row-actions {
    align-items: stretch;
  }

  .attempt-row-actions > * {
    flex: 1 1 9rem;
  }

  .attempt-row-actions .button,
  .attempt-row-actions .download-button,
  .course-card-body .button {
    width: 100%;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

.trixie-widget {
  position: fixed;
  right: clamp(1rem, 2vw, 1.5rem);
  bottom: clamp(1rem, 2vw, 1.5rem);
  z-index: 60;
  font-family: var(--font);
  pointer-events: none;
  transition: right 180ms ease, bottom 180ms ease, transform 180ms ease;
}

.trixie-launcher {
  display: grid;
  width: 4rem;
  height: 4rem;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  padding: 0.45rem;
  box-shadow: 0 22px 54px var(--shadow);
  cursor: pointer;
  pointer-events: auto;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.trixie-launcher:hover,
.trixie-launcher:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 70%, var(--line));
  box-shadow: 0 24px 64px color-mix(in srgb, var(--shadow) 120%, transparent);
  transform: translateY(-2px);
}

.trixie-launcher-avatar {
  display: grid;
  width: 3rem;
  height: 3rem;
  flex: 0 0 auto;
  place-items: center;
  overflow: hidden;
  border: 2px solid color-mix(in srgb, var(--accent) 44%, var(--line));
  border-radius: 999px;
  background: #fff;
}

.trixie-launcher-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.trixie-launcher-hint {
  position: absolute;
  right: 0;
  bottom: calc(100% + 0.75rem);
  width: max-content;
  max-width: min(19rem, calc(100vw - 2rem));
  border: 1px solid color-mix(in srgb, var(--accent) 38%, var(--line));
  border-radius: 1rem;
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 18px 46px var(--shadow);
  font-size: 0.92rem;
  font-weight: 750;
  line-height: 1.2;
  text-align: left;
  opacity: 0;
  padding: 0.72rem 0.85rem;
  pointer-events: none;
  transform: translateY(0.35rem);
  transition: opacity 180ms ease, transform 180ms ease;
}

.trixie-launcher-hint::after {
  position: absolute;
  right: 1.35rem;
  bottom: -0.45rem;
  width: 0.85rem;
  height: 0.85rem;
  border-right: 1px solid color-mix(in srgb, var(--accent) 38%, var(--line));
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 38%, var(--line));
  background: var(--surface);
  content: "";
  transform: rotate(45deg);
}

.trixie-widget.is-hint-visible:not(.is-open) .trixie-launcher-hint {
  opacity: 1;
  transform: translateY(0);
}

.trixie-widget.is-open .trixie-launcher,
.trixie-widget.is-minimized .trixie-launcher {
  width: 4rem;
  height: 4rem;
  justify-content: center;
  padding: 0.45rem;
}

.trixie-widget.is-minimized {
  right: clamp(1rem, 2vw, 1.5rem);
  bottom: clamp(1rem, 2vw, 1.5rem);
}

.trixie-widget.is-minimized .trixie-launcher {
  width: 3.6rem;
  height: 3.6rem;
  opacity: 0.82;
}

.trixie-widget.is-minimized .trixie-launcher:hover,
.trixie-widget.is-minimized .trixie-launcher:focus-visible {
  opacity: 1;
  transform: translateY(-2px);
}

.trixie-panel-chat {
  position: absolute;
  right: 0;
  bottom: calc(100% + 0.85rem);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  width: min(420px, calc(100vw - 2rem));
  height: min(610px, calc(100vh - 7rem));
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 28px 80px var(--shadow);
  pointer-events: auto;
}

.trixie-panel-chat[hidden] {
  display: none;
}

.trixie-panel-chat header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(135deg, var(--button-bg), color-mix(in srgb, var(--button-bg) 80%, var(--accent)));
  color: var(--button-text);
  padding: 1rem;
}

.trixie-panel-chat header strong,
.trixie-panel-chat header span {
  display: block;
}

.trixie-panel-chat header span {
  opacity: 0.82;
  font-size: 0.86rem;
  font-weight: 650;
}

.trixie-panel-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.5rem;
}

.trixie-close,
.trixie-minimize {
  display: grid;
  width: 2.2rem;
  height: 2.2rem;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: inherit;
  cursor: pointer;
  font-size: 1.35rem;
  line-height: 1;
}

.trixie-minimize {
  font-size: 1.2rem;
  font-weight: 900;
}

.trixie-messages {
  display: grid;
  align-content: start;
  gap: 0.72rem;
  overflow-y: auto;
  padding: 1rem;
}

.trixie-message {
  max-width: 88%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.78rem 0.85rem;
  overflow-wrap: anywhere;
  font-size: 0.95rem;
  line-height: 1.45;
}

.trixie-message p {
  margin: 0;
}

.trixie-message p + p,
.trixie-message ol + p,
.trixie-message p + ol {
  margin-top: 0.62rem;
}

.trixie-message ol {
  margin: 0;
  padding-left: 1.2rem;
}

.trixie-message li + li {
  margin-top: 0.35rem;
}

.trixie-message small {
  display: block;
  margin-top: 0.6rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.trixie-message-bot {
  justify-self: start;
  background: color-mix(in srgb, var(--accent-soft) 54%, var(--surface));
}

.trixie-message-user {
  justify-self: end;
  border-color: color-mix(in srgb, var(--button-bg) 28%, var(--line));
  background: var(--button-bg);
  color: var(--button-text);
}

.trixie-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  border-top: 1px solid var(--line);
  padding: 0.85rem;
}

.trixie-mode-toggle {
  grid-column: 1 / -1;
  display: inline-flex !important;
  width: fit-content;
  max-width: 100%;
  align-items: center;
  gap: 0.45rem !important;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 86%, var(--accent-soft));
  color: var(--ink);
  padding: 0.38rem 0.65rem;
  cursor: pointer;
}

.trixie-mode-toggle input {
  width: 1rem;
  height: 1rem;
  margin: 0;
  accent-color: var(--accent);
}

.trixie-mode-toggle span {
  color: var(--ink) !important;
  font-size: 0.8rem !important;
  text-transform: none !important;
}

.trixie-form label {
  display: grid;
  gap: 0.35rem;
  min-width: 0;
}

.trixie-form label span {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 740;
  text-transform: uppercase;
}

.trixie-form textarea {
  width: 100%;
  min-height: 3.1rem;
  max-height: 8rem;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  padding: 0.65rem 0.75rem;
  font: inherit;
  outline: none;
}

.trixie-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);
}

.trixie-form button {
  align-self: end;
}

@media (max-width: 560px) {
  .trixie-widget {
    right: 0.7rem;
    bottom: 0.7rem;
  }

  .trixie-widget.is-minimized {
    right: 0.7rem;
    bottom: 5.25rem;
  }

  .quiz-attempt-page .trixie-widget {
    bottom: 10.25rem;
  }

  .quiz-attempt-page .trixie-widget.is-minimized {
    bottom: 10.25rem;
  }

  .trixie-launcher-hint {
    right: 0;
    max-width: min(17rem, calc(100vw - 1.4rem));
  }

  .trixie-panel-chat {
    position: fixed;
    inset: auto 0.7rem 5rem 0.7rem;
    width: auto;
    height: min(560px, calc(100vh - 6rem));
  }

  .trixie-form {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 460px) {
  .shell {
    width: min(100% - 1.2rem, var(--shell));
  }

  .nav {
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 0.15rem;
  }

  .subjects-menu {
    position: static;
  }

  .subjects-menu-panel {
    position: fixed;
    top: calc(var(--header-height) + 0.55rem);
    right: 0.65rem;
    left: 0.65rem;
    width: auto;
    max-height: min(74vh, 32rem);
  }

  .filters {
    gap: 0.42rem;
  }

  .filter {
    padding-inline: 0.65rem;
  }

  .file-main {
    align-items: flex-start;
  }

  .file-title,
  .file-description {
    white-space: normal;
  }
}

@media (max-width: 980px) {
  .external-platform-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .external-platform-grid {
    grid-template-columns: 1fr;
  }

  .external-platform-card {
    min-height: auto;
  }
}

/* Layout hardening for long Abitur titles, admin-like forms, and narrow browser zoom levels. */
.button-primary:hover,
.button-primary:focus-visible,
.download-button:hover,
.download-button:focus-visible {
  color: var(--button-text);
}

.site-header {
  overflow-x: clip;
}

.platform-header {
  overflow: visible;
}

.header-inner,
.nav,
.header-actions {
  min-width: 0;
}

.brand {
  min-width: 0;
  white-space: nowrap;
}

.brand > span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
}

.download-section.quiz-section {
  padding-top: clamp(1.25rem, 3.5vw, 2.5rem);
}

.quiz-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  align-items: stretch;
}

.quiz-card {
  grid-template-rows: auto auto auto;
  min-width: 0;
  min-height: 360px;
  align-content: start;
  overflow: hidden;
  gap: 1rem;
}

.quiz-card > div:first-child {
  min-width: 0;
}

.quiz-card h2 {
  display: -webkit-box;
  min-height: 4.4rem;
  margin-bottom: 0.55rem;
  overflow: hidden;
  color: var(--ink);
  font-size: clamp(1.26rem, 1.45vw, 1.54rem);
  line-height: 1.16;
  overflow-wrap: anywhere;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.quiz-card p {
  display: -webkit-box;
  min-height: 3.9rem;
  overflow: hidden;
  line-height: 1.42;
  overflow-wrap: anywhere;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.quiz-topic {
  max-width: 100%;
  white-space: nowrap;
}

.quiz-meta {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
}

.quiz-meta div {
  min-width: 0;
  min-height: 4.45rem;
  padding: 0.62rem;
}

.quiz-meta dt,
.quiz-meta dd {
  overflow-wrap: normal;
  word-break: keep-all;
}

.quiz-meta dd {
  font-size: clamp(1rem, 1.2vw, 1.12rem);
  line-height: 1.22;
}

.quiz-card form {
  align-self: end;
}

.quiz-card form .button {
  max-width: 100%;
  min-width: 0;
  white-space: normal;
}

.quiz-card.task-quiz-card {
  position: relative;
  isolation: isolate;
  border: 1px solid transparent;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 94%, #ffffff), var(--surface)) padding-box,
    linear-gradient(135deg, color-mix(in srgb, var(--amber) 38%, var(--line)), color-mix(in srgb, var(--ink) 15%, var(--line))) border-box;
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, var(--surface) 84%, var(--bg)),
    0 18px 34px color-mix(in srgb, var(--shadow) 92%, transparent),
    0 44px 86px color-mix(in srgb, var(--shadow) 68%, transparent);
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.quiz-card.task-quiz-card::before {
  content: "";
  position: absolute;
  inset: 1rem auto 1rem 0;
  width: 5px;
  border-radius: 0 999px 999px 0;
  background: linear-gradient(180deg, var(--amber), var(--cyan-strong));
  box-shadow: 0 12px 24px color-mix(in srgb, var(--amber) 28%, transparent);
}

.quiz-card.task-quiz-card:hover,
.quiz-card.task-quiz-card:focus-within {
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, var(--surface) 80%, var(--bg)),
    0 24px 44px color-mix(in srgb, var(--shadow) 110%, transparent),
    0 58px 110px color-mix(in srgb, var(--shadow) 76%, transparent);
  transform: translateY(-2px);
}

.quiz-card.task-quiz-card .quiz-topic {
  background: color-mix(in srgb, var(--accent-soft) 72%, var(--surface));
  border-color: color-mix(in srgb, var(--amber) 46%, var(--line));
  color: color-mix(in srgb, var(--amber) 72%, var(--ink));
}

.quiz-card.task-quiz-card .quiz-meta div {
  border-color: color-mix(in srgb, var(--ink) 13%, var(--line));
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 92%, #ffffff), color-mix(in srgb, var(--surface) 86%, var(--accent-soft)));
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, var(--surface) 84%, var(--bg)),
    0 8px 20px color-mix(in srgb, var(--shadow) 44%, transparent);
}

.attempt-history .file-board {
  overflow-x: auto;
}

.file-row,
.file-head {
  min-width: 0;
}

.file-row > *,
.file-head > * {
  min-width: 0;
}

.upload-form .button,
.account-card .button {
  max-width: 100%;
  white-space: normal;
}

.profile-heading {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.profile-avatar-large {
  display: grid;
  place-items: center;
  width: 6rem;
  height: 6rem;
  flex: 0 0 6rem;
  overflow: hidden;
  border-radius: 999px;
  border: 3px solid var(--gold-soft);
  background: var(--navy);
  color: #fff;
  font-size: 2.4rem;
  font-weight: 900;
  box-shadow: 0 18px 40px rgba(6, 36, 70, 0.16);
}

.profile-avatar-large img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--avatar-x, 50%) var(--avatar-y, 50%);
  transform: scale(calc(var(--avatar-zoom, 100) / 100));
  transform-origin: var(--avatar-x, 50%) var(--avatar-y, 50%);
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.profile-card {
  min-height: 0;
}

.profile-card h2 {
  margin: 0 0 1rem;
}

.profile-form {
  display: grid;
  gap: 1rem;
}

.avatar-crop-editor {
  display: grid;
  gap: 0.75rem;
  color: var(--navy);
  font-weight: 900;
}

.avatar-crop-row {
  display: grid;
  grid-template-columns: 7rem minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.avatar-crop-preview {
  display: grid;
  width: 7rem;
  height: 7rem;
  place-items: center;
  overflow: hidden;
  border: 3px solid var(--gold-soft);
  border-radius: 999px;
  background: var(--navy);
  color: #fff;
  font-size: 2.2rem;
  font-weight: 900;
  box-shadow: 0 18px 40px rgba(6, 36, 70, 0.14);
}

.avatar-crop-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--avatar-x, 50%) var(--avatar-y, 50%);
  transform: scale(calc(var(--avatar-zoom, 100) / 100));
  transform-origin: var(--avatar-x, 50%) var(--avatar-y, 50%);
}

.avatar-crop-fields {
  display: grid;
  gap: 0.72rem;
  min-width: 0;
}

.avatar-crop-fields input[type="file"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: #fff;
  color: var(--navy);
  padding: 0.75rem;
  font: inherit;
  font-weight: 700;
}

.avatar-crop-fields label {
  display: grid;
  grid-template-columns: 6rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 800;
}

.avatar-crop-fields input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.form-field {
  display: grid;
  gap: 0.4rem;
  color: var(--navy);
  font-weight: 900;
}

.form-field input,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  padding: 0.9rem 1rem;
  color: var(--navy);
  background: #fff;
  font: inherit;
  font-weight: 700;
}

.form-field textarea {
  resize: vertical;
}

.form-error {
  color: #b42318;
  font-weight: 800;
}

@media (min-width: 1260px) {
  .quiz-section .shell {
    width: min(100% - 4rem, 1320px);
  }

  .quiz-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1540px) {
  .quiz-section .shell {
    width: min(100% - 4rem, 1500px);
  }

  .quiz-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 1100px) {
  .quiz-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  }
}

@media (max-width: 720px) {
  .quiz-section {
    padding-top: 1rem;
  }

  .dataset-callout {
    align-items: stretch;
    flex-direction: column;
  }

  .dataset-callout .button {
    width: 100%;
  }

  .quiz-intro-card .button {
    width: 100%;
  }

  .ace-dialog {
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
  }

  .ace-dialog-head img {
    width: 3.5rem;
    height: 3.5rem;
  }

  .ace-flip-card {
    min-height: 25rem;
  }

  .ace-card-face {
    padding: 1rem;
  }

  .profile-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .profile-grid {
    grid-template-columns: 1fr;
  }

  .avatar-crop-row {
    grid-template-columns: 1fr;
  }

  .avatar-crop-fields label {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .quiz-mascot-callout {
    grid-template-columns: 4.5rem minmax(0, 1fr);
    align-items: start;
  }

  .quiz-mascot {
    width: 4.5rem;
    height: 4.5rem;
  }

  .quiz-heading h1 {
    font-size: clamp(2rem, 11vw, 3rem);
  }

  .quiz-grid {
    grid-template-columns: 1fr;
  }

  .quiz-card {
    min-height: auto;
    padding: 1rem;
  }

  .quiz-card h2,
  .quiz-card p {
    min-height: 0;
    -webkit-line-clamp: initial;
  }
  .quiz-card h2 {
    font-size: clamp(1.45rem, 8vw, 2rem);
    line-height: 1.12;
  }

  .quiz-meta {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .quiz-meta div {
    display: flex;
    min-height: 0;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.65rem 0.75rem;
  }

  .quiz-meta dt {
    font-size: 0.78rem;
  }

  .quiz-meta dd {
    font-size: 1.05rem;
    text-align: right;
  }

  .quiz-card form .button {
    width: 100%;
  }

  .material-grid .material-card {
    min-height: auto;
  }

  .material-meta {
    grid-template-columns: 1fr;
  }

  .download-section .quiz-heading h1 {
    font-size: clamp(2rem, 9.5vw, 2.45rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .quiz-speech-bubble {
    opacity: 1;
    transform: none;
    animation-delay: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* Central typography system: consistent SaaS-style hierarchy across study and account surfaces. */
body {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
.brand,
.dashboard-welcome h1,
.dashboard-panel h2,
.quiz-heading h1,
.result-summary h1,
.quiz-nav h1,
.roadmap-page-heading h1,
.account-card h1,
.account-card h2,
.question-card h2,
.quiz-card h2,
.ace-dialog-head h2,
.profile-card h2 {
  font-family: var(--font-display);
  letter-spacing: 0;
}

h1 {
  font-size: 3.75rem;
  font-weight: 700;
  line-height: 1.04;
}

h2 {
  font-size: 2.65rem;
  font-weight: 700;
  line-height: 1.1;
}

h3 {
  font-size: 1.45rem;
  font-weight: 650;
  line-height: 1.2;
}

p,
li,
.subject-choice small,
.quiz-card p,
.account-card p,
.trixie-message,
.form-field textarea {
  line-height: 1.68;
}

.brand {
  font-weight: 700;
}

.nav,
.rail-nav,
.account-menu-panel,
.header-actions,
.button,
.download-button,
button {
  font-family: var(--font-sans);
}

.nav,
.rail-nav,
.account-menu-panel a {
  font-size: 0.96rem;
  font-weight: 600;
}

.button,
.download-button,
button {
  font-weight: 600;
}

small,
label,
.form-field,
.dashboard-stats small,
.quiz-meta dt,
.trixie-form label span,
.email-option small {
  font-weight: 600;
}

.dashboard-stats b,
.account-avatar,
.roadmap-progress-value,
.quiz-meta dd {
  font-weight: 700;
}

.dashboard-welcome h1 {
  font-size: 2.75rem;
  line-height: 1.06;
}

.dashboard-panel h2,
.quiz-card h2,
.question-card h2,
.account-card h1,
.account-card h2 {
  font-size: 1.65rem;
  line-height: 1.15;
}

.quiz-heading h1,
.result-summary h1 {
  font-size: 2.55rem;
}

@media (max-width: 720px) {
  body {
    font-size: 1rem;
  }

  h1,
  .dashboard-welcome h1,
  .quiz-heading h1,
  .result-summary h1 {
    font-size: 2.45rem;
    line-height: 1.06;
  }

  h2 {
    font-size: 2rem;
  }

  .dashboard-panel h2,
  .quiz-card h2,
  .question-card h2,
  .account-card h1,
  .account-card h2 {
    font-size: 1.45rem;
  }
}

@media (max-width: 720px) {
  .download-section.quiz-section .quiz-heading h1 {
    font-size: clamp(1.72rem, 7.8vw, 2rem);
    line-height: 1.08;
  }
}