:root {
  color-scheme: light;
  --brand-white: #ffffff;
  --brand-blue: #005c8a;
  --brand-orange: #e09000;
  --page: #f3f7f8;
  --page-pattern: rgb(0 92 138 / 6%);
  --surface: #ffffff;
  --surface-raised: #ffffff;
  --surface-subtle: #e8f1f3;
  --text: #102a34;
  --text-muted: #536b74;
  --border: #d2e0e4;
  --border-strong: #abc3ca;
  --accent: #005c8a;
  --accent-strong: #00466a;
  --accent-soft: #dceff6;
  --accent-contrast: #ffffff;
  --highlight: #e09000;
  --highlight-soft: #fff0cf;
  --success: #197653;
  --danger: #b83d4a;
  --focus: #e09000;
  --browser-chrome: #f3f7f8;
  --shadow-soft: 0 18px 45px rgb(19 70 88 / 10%);
  --shadow-lift: 0 24px 70px rgb(19 70 88 / 16%);
  --font-body: "Aptos", "Segoe UI Variable", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
  --font-display: "Aptos Display", "Segoe UI Variable Display", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
  --radius-sm: 0.7rem;
  --radius-md: 1.1rem;
  --radius-lg: 1.7rem;
}

:root[data-theme="prometeo-dark"],
:root[data-theme="midnight"] {
  color-scheme: dark;
}

:root[data-theme="prometeo-dark"] {
  --page: #081a23;
  --page-pattern: rgb(85 182 223 / 8%);
  --surface: #102a35;
  --surface-raised: #163642;
  --surface-subtle: #193d49;
  --text: #f2f8fa;
  --text-muted: #b6cbd2;
  --border: #31515c;
  --border-strong: #4a6e7a;
  --accent: #70c4e6;
  --accent-strong: #a4ddf2;
  --accent-soft: #173f50;
  --accent-contrast: #071820;
  --highlight: #ffbd50;
  --highlight-soft: #4b371b;
  --success: #6bd5a7;
  --danger: #ff9da6;
  --focus: #ffbd50;
  --browser-chrome: #081a23;
  --shadow-soft: 0 18px 45px rgb(1 7 10 / 28%);
  --shadow-lift: 0 26px 70px rgb(1 7 10 / 42%);
}

:root[data-theme="archivo"] {
  --page: #f3ead8;
  --page-pattern: rgb(112 69 43 / 8%);
  --surface: #fbf4e7;
  --surface-raised: #fffaf1;
  --surface-subtle: #e9ddc8;
  --text: #352b25;
  --text-muted: #6d5c50;
  --border: #d1c0a5;
  --border-strong: #aa9071;
  --accent: #79492c;
  --accent-strong: #59331e;
  --accent-soft: #ead8c2;
  --accent-contrast: #fffaf1;
  --highlight: #b66a2e;
  --highlight-soft: #f0dcc0;
  --success: #52714a;
  --danger: #9e4545;
  --focus: #9b4e1f;
  --browser-chrome: #f3ead8;
  --shadow-soft: 0 16px 38px rgb(78 54 35 / 12%);
  --shadow-lift: 0 24px 62px rgb(78 54 35 / 18%);
  --font-display: Georgia, "Times New Roman", serif;
  --radius-sm: 0.45rem;
  --radius-md: 0.8rem;
  --radius-lg: 1.2rem;
}

:root[data-theme="sakura"] {
  --page: #fff4f8;
  --page-pattern: rgb(165 47 98 / 6%);
  --surface: #fffafd;
  --surface-raised: #ffffff;
  --surface-subtle: #f8e4ed;
  --text: #382337;
  --text-muted: #71586e;
  --border: #ebcbd9;
  --border-strong: #d7a3ba;
  --accent: #a52f62;
  --accent-strong: #7e2149;
  --accent-soft: #f6dce8;
  --accent-contrast: #ffffff;
  --highlight: #d05b87;
  --highlight-soft: #fde1ea;
  --success: #3f7a64;
  --danger: #ae3850;
  --focus: #7e2149;
  --browser-chrome: #fff4f8;
  --shadow-soft: 0 18px 45px rgb(115 47 77 / 10%);
  --shadow-lift: 0 26px 70px rgb(115 47 77 / 16%);
  --radius-sm: 0.9rem;
  --radius-md: 1.35rem;
  --radius-lg: 2rem;
}

:root[data-theme="midnight"] {
  --page: #11151d;
  --page-pattern: rgb(115 199 242 / 7%);
  --surface: #181f2b;
  --surface-raised: #202a39;
  --surface-subtle: #252f40;
  --text: #edf2f7;
  --text-muted: #aeb9c9;
  --border: #344155;
  --border-strong: #53637a;
  --accent: #73c7f2;
  --accent-strong: #a9ddf6;
  --accent-soft: #203b4d;
  --accent-contrast: #10151d;
  --highlight: #f0a95b;
  --highlight-soft: #493725;
  --success: #7cd6b0;
  --danger: #f39ca6;
  --focus: #f0a95b;
  --browser-chrome: #11151d;
  --shadow-soft: 0 18px 45px rgb(2 5 10 / 32%);
  --shadow-lift: 0 26px 70px rgb(2 5 10 / 46%);
  --font-body: "Cascadia Sans", "Segoe UI Variable", ui-sans-serif, system-ui, sans-serif;
}

:root[data-theme="high-contrast"] {
  color-scheme: dark;
  --page: #050505;
  --page-pattern: transparent;
  --surface: #101010;
  --surface-raised: #171717;
  --surface-subtle: #242424;
  --text: #ffffff;
  --text-muted: #e5e5e5;
  --border: #ffffff;
  --border-strong: #ffffff;
  --accent: #ffd400;
  --accent-strong: #ffe34d;
  --accent-soft: #3a3200;
  --accent-contrast: #050505;
  --highlight: #ffd400;
  --highlight-soft: #3a3200;
  --success: #8cffc1;
  --danger: #ff9dab;
  --focus: #00e5ff;
  --browser-chrome: #050505;
  --shadow-soft: none;
  --shadow-lift: none;
  --radius-sm: 0.35rem;
  --radius-md: 0.55rem;
  --radius-lg: 0.8rem;
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="system"] {
    color-scheme: dark;
    --page: #081a23;
    --page-pattern: rgb(85 182 223 / 8%);
    --surface: #102a35;
    --surface-raised: #163642;
    --surface-subtle: #193d49;
    --text: #f2f8fa;
    --text-muted: #b6cbd2;
    --border: #31515c;
    --border-strong: #4a6e7a;
    --accent: #70c4e6;
    --accent-strong: #a4ddf2;
    --accent-soft: #173f50;
    --accent-contrast: #071820;
    --highlight: #ffbd50;
    --highlight-soft: #4b371b;
    --success: #6bd5a7;
    --danger: #ff9da6;
    --focus: #ffbd50;
    --browser-chrome: #081a23;
    --shadow-soft: 0 18px 45px rgb(1 7 10 / 28%);
    --shadow-lift: 0 26px 70px rgb(1 7 10 / 42%);
  }
}

* {
  box-sizing: border-box;
}

html {
  background: var(--page);
  scroll-behavior: smooth;
}

body {
  background:
    radial-gradient(circle at 7% 4%, var(--page-pattern), transparent 24rem),
    var(--page);
  color: var(--text);
  font-family: var(--font-body);
  margin: 0;
  min-height: 100dvh;
  transition: background-color 180ms ease, color 180ms ease;
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: var(--accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.visually-hidden {
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.skip-link {
  background: var(--accent);
  border-radius: var(--radius-sm);
  color: var(--accent-contrast);
  font-weight: 800;
  left: 1rem;
  padding: 0.75rem 1rem;
  position: fixed;
  top: -6rem;
  z-index: 100;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  align-items: center;
  backdrop-filter: blur(18px);
  background: color-mix(in srgb, var(--page) 84%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 78%, transparent);
  display: flex;
  justify-content: space-between;
  min-height: 4.5rem;
  padding: 0.65rem clamp(1rem, 4vw, 4rem);
  position: sticky;
  top: 0;
  z-index: 30;
}

.site-header__inner,
.brand {
  align-items: center;
  display: flex;
}

.site-header__inner {
  gap: 1.1rem;
  min-width: 0;
}

.brand {
  color: var(--text);
  flex: none;
  font-weight: 800;
  gap: 0.7rem;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--brand-blue);
  border-radius: 0.65rem 0.65rem 0.2rem 0.65rem;
  box-shadow: inset -0.35rem -0.35rem 0 var(--brand-orange);
  color: var(--brand-white);
  display: inline-flex;
  font-size: 0.7rem;
  height: 2.2rem;
  justify-content: center;
  letter-spacing: 0.03em;
  width: 2.2rem;
}

.brand-mark span {
  transform: translate(-0.08rem, -0.08rem);
}

.brand-name {
  white-space: nowrap;
}

.header-note {
  border-left: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.82rem;
  padding-left: 1.1rem;
}

.course-switcher {
  position: relative;
}

.course-switcher summary {
  align-items: center;
  border-left: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  display: flex;
  font-size: 0.82rem;
  gap: 0.45rem;
  list-style: none;
  max-width: 19rem;
  padding-left: 1.1rem;
}

.course-switcher summary::-webkit-details-marker {
  display: none;
}

.course-switcher summary::after {
  border-bottom: 1px solid currentColor;
  border-right: 1px solid currentColor;
  content: "";
  height: 0.35rem;
  margin: -0.2rem 0 0 0.2rem;
  transform: rotate(45deg);
  transition: transform 160ms ease;
  width: 0.35rem;
}

.course-switcher[open] summary::after {
  transform: rotate(225deg) translate(-0.12rem, -0.12rem);
}

.course-switcher summary strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.course-switcher__menu {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 0.2rem;
  min-width: 15rem;
  opacity: 0;
  padding: 0.35rem;
  pointer-events: none;
  position: absolute;
  right: 0;
  top: calc(100% + 0.7rem);
  transform: translate(0.85rem, -0.35rem);
  transform-origin: top right;
  transition: opacity 180ms ease, transform 220ms cubic-bezier(0.22, 1, 0.36, 1), visibility 0s linear 220ms;
  visibility: hidden;
  z-index: 40;
}

.course-switcher[open] .course-switcher__menu {
  opacity: 1;
  pointer-events: auto;
  transform: translate(0, 0);
  transition-delay: 0s;
  visibility: visible;
}

.course-switcher.is-opening .course-switcher__menu,
.course-switcher.is-closing .course-switcher__menu {
  opacity: 0;
  pointer-events: none;
  transform: translate(0.85rem, -0.35rem);
  visibility: visible;
}

.course-switcher__option {
  border-radius: calc(var(--radius-sm) - 0.2rem);
  color: var(--text);
  font-size: 0.88rem;
  padding: 0.6rem 0.7rem;
  text-decoration: none;
}

.course-switcher__option:hover,
.course-switcher__option:focus-visible,
.course-switcher__option.is-active {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

@media (prefers-reduced-motion: reduce) {
  .course-switcher summary::after,
  .course-switcher__menu {
    transition: none;
  }
}

.theme-switcher {
  position: relative;
}

.theme-switcher summary {
  list-style: none;
}

.theme-switcher summary::-webkit-details-marker {
  display: none;
}

.theme-switcher__trigger {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  display: flex;
  gap: 0.65rem;
  min-width: 11rem;
  padding: 0.45rem 0.7rem 0.45rem 0.5rem;
  user-select: none;
}

.theme-switcher__trigger small,
.theme-switcher__trigger strong {
  display: block;
}

.theme-switcher__trigger small {
  color: var(--text-muted);
  font-size: 0.65rem;
  line-height: 1;
}

.theme-switcher__trigger strong {
  color: var(--text);
  font-size: 0.8rem;
  line-height: 1.25;
  margin-top: 0.1rem;
}

.theme-switcher__preview,
.theme-option__swatches {
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: 999px;
  display: grid;
  flex: none;
  grid-template-columns: repeat(3, 1fr);
  height: 2rem;
  overflow: hidden;
  padding: 0.18rem;
  width: 3rem;
}

.theme-switcher__preview i:nth-child(1) { background: var(--page); }
.theme-switcher__preview i:nth-child(2) { background: var(--accent); }
.theme-switcher__preview i:nth-child(3) { background: var(--highlight); }
.theme-switcher__preview i:first-child,
.theme-option__swatches i:first-child { border-radius: 999px 0 0 999px; }
.theme-switcher__preview i:last-child,
.theme-option__swatches i:last-child { border-radius: 0 999px 999px 0; }

.theme-switcher__chevron {
  color: var(--text-muted);
  margin-left: auto;
  transition: transform 180ms ease;
}

.theme-switcher[open] .theme-switcher__chevron {
  transform: rotate(180deg);
}

.theme-menu {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lift);
  padding: 0.8rem;
  position: absolute;
  right: 0;
  top: calc(100% + 0.65rem);
  width: min(23rem, calc(100vw - 2rem));
}

.theme-menu__heading {
  padding: 0.45rem 0.55rem 0.75rem;
}

.theme-menu__heading strong,
.theme-menu__heading span {
  display: block;
}

.theme-menu__heading strong {
  font-family: var(--font-display);
  font-size: 1rem;
}

.theme-menu__heading span {
  color: var(--text-muted);
  font-size: 0.78rem;
  margin-top: 0.2rem;
}

.theme-menu__options {
  display: grid;
  gap: 0.25rem;
}

.theme-option {
  align-items: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text);
  cursor: pointer;
  display: grid;
  gap: 0.7rem;
  grid-template-columns: auto minmax(0, 1fr) auto;
  padding: 0.65rem;
  text-align: left;
  width: 100%;
}

.theme-option:hover,
.theme-option.is-selected {
  background: var(--surface-subtle);
  border-color: var(--border);
}

.theme-option:active,
.button:active,
form button:active {
  transform: translateY(1px) scale(0.99);
}

.theme-option__swatches i:nth-child(1) { background: var(--swatch-1); }
.theme-option__swatches i:nth-child(2) { background: var(--swatch-2); }
.theme-option__swatches i:nth-child(3) { background: var(--swatch-3); }

.theme-option__copy strong,
.theme-option__copy small {
  display: block;
}

.theme-option__copy strong {
  font-size: 0.84rem;
}

.theme-option__copy small {
  color: var(--text-muted);
  font-size: 0.72rem;
  line-height: 1.35;
  margin-top: 0.12rem;
}

.theme-option__check {
  color: var(--accent);
  opacity: 0;
}

.theme-option.is-selected .theme-option__check {
  opacity: 1;
}

.landing-shell {
  margin: 0 auto;
  max-width: 78rem;
  padding: clamp(1.5rem, 5vw, 4rem) clamp(1rem, 4vw, 3rem) 5rem;
}

.hero {
  align-items: center;
  display: grid;
  gap: clamp(2.5rem, 7vw, 7rem);
  grid-template-columns: minmax(0, 1fr) minmax(20rem, 0.82fr);
  min-height: min(43rem, calc(100dvh - 4.5rem));
  padding: clamp(2.5rem, 7vw, 5rem) 0;
}

.hero__label,
.context-label {
  background: var(--accent-soft);
  border-radius: 999px;
  color: var(--accent-strong);
  display: inline-flex;
  font-size: 0.78rem;
  font-weight: 760;
  padding: 0.45rem 0.7rem;
}

.hero h1,
.dashboard__header h1,
.section-heading h2 {
  font-family: var(--font-display);
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 5.4rem);
  letter-spacing: -0.06em;
  line-height: 0.98;
  margin: 1.15rem 0 1.25rem;
  max-width: 11ch;
}

:root[data-theme="archivo"] .hero h1,
:root[data-theme="archivo"] .dashboard__header h1,
:root[data-theme="archivo"] .section-heading h2 {
  letter-spacing: -0.035em;
  line-height: 1.03;
}

.hero__copy > p {
  color: var(--text-muted);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.65;
  margin: 0;
  max-width: 52ch;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.8rem;
}

.button,
form button {
  align-items: center;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--accent-contrast);
  cursor: pointer;
  display: inline-flex;
  font-size: 0.9rem;
  font-weight: 760;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, transform 120ms ease;
}

.button:hover,
form button:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.button--secondary,
.button-secondary {
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--text);
}

.button--secondary:hover,
.button-secondary:hover {
  background: var(--surface-subtle);
  border-color: var(--border-strong);
}

.button--ghost {
  background: transparent;
  border-color: transparent;
  color: var(--accent);
  min-height: auto;
  padding: 0.4rem;
}

.button--ghost:hover {
  background: var(--accent-soft);
  border-color: transparent;
}

.hero__stage {
  min-height: 27rem;
  position: relative;
}

.hero__stage::before {
  background: var(--accent-soft);
  border-radius: 46% 54% 62% 38% / 44% 38% 62% 56%;
  content: "";
  inset: 2.2rem 0.5rem 1rem 1.8rem;
  position: absolute;
  transform: rotate(-4deg);
}

.study-card {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lift);
  position: absolute;
}

.study-card--class {
  border-radius: var(--radius-lg);
  left: 0;
  padding: 1.55rem;
  right: 2.8rem;
  top: 1.2rem;
  transform: rotate(-1.5deg);
}

.study-card__topline {
  align-items: center;
  color: var(--text-muted);
  display: flex;
  font-size: 0.8rem;
  justify-content: space-between;
}

.study-card__subject {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 780;
  margin: 2.8rem 0 0.4rem;
}

.study-card h2 {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3vw, 2.3rem);
  letter-spacing: -0.04em;
  margin: 0;
}

.study-card--class > p:not(.study-card__subject) {
  color: var(--text-muted);
  margin: 0.55rem 0 1.8rem;
}

.study-card--class > a {
  font-size: 0.86rem;
  font-weight: 780;
  text-decoration: none;
}

.study-card--progress {
  border-radius: var(--radius-md);
  bottom: 2.6rem;
  padding: 1rem 1.2rem;
  right: 0;
  transform: rotate(2deg);
  width: 11.5rem;
}

.study-card--progress span,
.study-card--progress p {
  color: var(--text-muted);
  display: block;
  font-size: 0.72rem;
  margin: 0;
}

.study-card--progress strong {
  display: block;
  font-size: 1.65rem;
  letter-spacing: -0.04em;
  margin: 0.45rem 0 0.1rem;
}

.hero__note {
  bottom: 0;
  color: var(--text-muted);
  font-size: 0.76rem;
  left: 1.2rem;
  margin: 0;
  max-width: 24ch;
  position: absolute;
}

.badge {
  background: var(--surface-subtle);
  border-radius: 999px;
  color: var(--text-muted);
  display: inline-flex;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.36rem 0.62rem;
}

.badge--orange {
  background: var(--highlight-soft);
  color: color-mix(in srgb, var(--highlight) 72%, var(--text));
}

.badge--success {
  background: color-mix(in srgb, var(--success) 16%, transparent);
  color: var(--success);
}

.badge--neutral {
  background: var(--surface-subtle);
  color: var(--text-muted);
}

.preview-section,
.states-section {
  border-top: 1px solid var(--border);
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
}

.states-section {
  margin-top: clamp(3.5rem, 8vw, 7rem);
}

.section-heading {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.8rem;
  max-width: 52rem;
}

.section-heading h2 {
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  letter-spacing: -0.05em;
  line-height: 1.05;
  margin: 0;
  max-width: 18ch;
}

.section-heading > p {
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
  max-width: 58ch;
}

.section-heading--compact {
  margin-bottom: 1.3rem;
}

.role-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.5fr repeat(2, 1fr);
}

.role-card {
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 14rem;
  padding: 1.25rem;
}

.role-card:first-child {
  grid-row: span 2;
  min-height: 29rem;
  padding: 1.55rem;
}

.role-card:last-child {
  grid-column: 2 / 4;
  min-height: 12rem;
}

.role-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.025em;
  margin: 0;
}

.role-card:first-child h3 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin-top: 2rem;
}

.role-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.55;
  margin: 0.45rem 0 0;
  max-width: 36ch;
}

.role-card .button {
  align-self: flex-start;
  margin-top: auto;
}

.avatar {
  align-items: center;
  background: var(--accent-soft);
  border-radius: 0.85rem 0.85rem 0.3rem 0.85rem;
  color: var(--accent-strong);
  display: inline-flex;
  font-size: 0.72rem;
  font-weight: 900;
  height: 2.65rem;
  justify-content: center;
  width: 2.65rem;
}

.avatar--alumno { background: var(--highlight-soft); color: color-mix(in srgb, var(--highlight) 68%, var(--text)); }
.avatar--profesor { background: var(--accent-soft); color: var(--accent-strong); }
.avatar--directivo { background: color-mix(in srgb, var(--success) 17%, transparent); color: var(--success); }
.avatar--superadmin { background: color-mix(in srgb, var(--accent) 12%, var(--surface)); color: var(--accent); }

.state-grid {
  display: grid;
  gap: 0;
}

.state-card {
  align-items: flex-start;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 1rem;
  grid-template-columns: auto minmax(0, 1fr);
  padding: 1.25rem 0;
}

.state-card:last-child {
  border-bottom: 1px solid var(--border);
}

.state-card__symbol {
  align-items: center;
  background: var(--surface-subtle);
  border-radius: 50%;
  display: inline-flex;
  font-weight: 900;
  height: 2rem;
  justify-content: center;
  width: 2rem;
}

.state-card--success .state-card__symbol { background: color-mix(in srgb, var(--success) 16%, transparent); color: var(--success); }
.state-card--forbidden .state-card__symbol { background: color-mix(in srgb, var(--danger) 15%, transparent); color: var(--danger); }
.state-card h3 { font-size: 0.98rem; margin: 0; }
.state-card p { color: var(--text-muted); font-size: 0.86rem; line-height: 1.55; margin: 0.25rem 0 0; }

.app-shell {
  display: grid;
  grid-template-columns: 16rem minmax(0, 1fr);
  min-height: calc(100dvh - 4.5rem);
}

.sidebar {
  background: color-mix(in srgb, var(--surface) 84%, transparent);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding: 1.5rem 1rem;
  min-width: 0;
}

.sidebar__identity {
  align-items: center;
  display: flex;
  gap: 0.75rem;
  padding: 0 0.55rem;
}

.sidebar__identity strong,
.sidebar__identity span {
  display: block;
}

.sidebar__identity span:not(.avatar) {
  color: var(--text-muted);
  font-size: 0.72rem;
  margin-top: 0.15rem;
}

.workspace-switcher {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 0.65rem;
  padding: 0.75rem;
}

.workspace-switcher label {
  display: grid;
  gap: 0.4rem;
}

.workspace-switcher label > span {
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 780;
}

.workspace-switcher select {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  cursor: pointer;
  min-height: 2.55rem;
  padding: 0.55rem 0.7rem;
  width: 100%;
}

.workspace-switcher select:hover {
  border-color: var(--accent);
}

.workspace-switcher button {
  min-height: 2.4rem;
  width: 100%;
}

.side-nav {
  display: grid;
  gap: 0.2rem;
}

.side-nav__item {
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.72rem 0.8rem;
  text-decoration: none;
}

.side-nav__item:hover {
  background: var(--surface-subtle);
  color: var(--text);
}

.side-nav__item.is-active {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.side-nav__group {
  min-width: 0;
}

.side-nav__group > summary {
  align-items: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  font-size: 0.9rem;
  font-weight: 700;
  justify-content: space-between;
  list-style: none;
  padding: 0.72rem 0.8rem;
}

.side-nav__group > summary::-webkit-details-marker {
  display: none;
}

.side-nav__group > summary::after {
  content: "+";
  font-size: 1rem;
}

.side-nav__group[open] > summary::after {
  content: "−";
}

.side-nav__group > summary:hover,
.side-nav__group > summary.is-active {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.side-nav__submenu {
  border-left: 1px solid var(--border);
  display: grid;
  gap: 0.12rem;
  margin: 0.25rem 0 0.35rem 0.8rem;
  padding-left: 0.45rem;
}

.side-nav__submenu a {
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 680;
  padding: 0.55rem 0.65rem;
  text-decoration: none;
}

.side-nav__submenu a:hover,
.side-nav__submenu a[aria-current="page"] {
  background: var(--surface-subtle);
  color: var(--accent-strong);
}

.sidebar__back {
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 700;
  margin-top: auto;
  padding: 0.5rem;
  text-decoration: none;
}

.dashboard {
  margin: 0 auto;
  max-width: 84rem;
  min-width: 0;
  padding: clamp(1.5rem, 4vw, 3.5rem);
  width: 100%;
}

.dashboard__header {
  align-items: end;
  display: flex;
  gap: 1.5rem;
  justify-content: space-between;
  margin-bottom: 2.2rem;
}

.dashboard__header h1 {
  font-size: clamp(2.1rem, 4vw, 3.7rem);
  letter-spacing: -0.055em;
  line-height: 1;
  margin: 0.75rem 0 0.65rem;
}

.dashboard__header p {
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
  max-width: 55ch;
}

.dashboard-filters {
  align-items: end;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 1.4rem 0;
  padding: 0.9rem;
}

.dashboard-filters label {
  color: var(--text-muted);
  display: grid;
  font-size: 0.78rem;
  font-weight: 750;
  gap: 0.35rem;
}

.dashboard-filters select {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  min-height: 2.55rem;
  min-width: 12rem;
  padding: 0.35rem 0.55rem;
}

.dashboard-filters button {
  min-height: 2.55rem;
}

.accessible-chart {
  margin: 0 0 1.4rem;
}

.accessible-chart figcaption {
  font-weight: 800;
  margin-bottom: 0.7rem;
}

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

.accessible-chart li {
  align-items: center;
  display: grid;
  gap: 0.7rem;
  grid-template-columns: minmax(10rem, 1fr) minmax(5rem, 2fr) auto;
}

.accessible-chart meter {
  accent-color: var(--accent);
  inline-size: 100%;
}

.metric-strip {
  border-bottom: 1px solid var(--border);
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 1.25rem;
}

.metric {
  min-height: 8.5rem;
  padding: 1.25rem;
  position: relative;
}

.metric + .metric {
  border-left: 1px solid var(--border);
}

.metric::after {
  background: var(--accent);
  border-radius: 999px;
  content: "";
  height: 0.25rem;
  left: 1.25rem;
  position: absolute;
  top: 1.2rem;
  width: 2.2rem;
}

.metric--orange::after { background: var(--highlight); }
.metric--green::after { background: var(--success); }
.metric p,
.metric span { color: var(--text-muted); display: block; font-size: 0.82rem; margin: 0; }
.metric p { padding-top: 0.55rem; }
.metric strong { display: block; font-size: 2rem; letter-spacing: -0.05em; margin: 0.75rem 0 0.15rem; }

.content-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(0, 1.55fr) minmax(17rem, 0.7fr);
  margin-bottom: 1.25rem;
}

.content-grid--teacher-summary {
  align-items: start;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.panel--wide {
  box-shadow: var(--shadow-soft);
}

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

.section-kicker {
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 760;
}

.panel__heading h2 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: -0.025em;
  margin: 0.28rem 0 0;
}

.dashboard-accordion summary {
  align-items: center;
  color: var(--text);
  cursor: pointer;
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  list-style: none;
}

.dashboard-accordion summary::-webkit-details-marker {
  display: none;
}

.dashboard-accordion summary::after {
  color: var(--text-muted);
  content: "+";
  flex: 0 0 auto;
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1;
}

.dashboard-accordion[open] summary::after {
  content: "−";
}

.dashboard-accordion summary h2 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: -0.025em;
  margin: 0.28rem 0;
}

.dashboard-accordion__content {
  border-top: 1px solid var(--border);
  margin-top: 0.8rem;
  padding-top: 0.15rem;
}

.dashboard-accordion__content > :first-child {
  margin-top: 0.85rem;
}

.teacher-summary-panel {
  display: flex;
  flex-direction: column;
}

.teacher-summary-panel:has(.teacher-classes-accordion[open]) {
  height: 28rem;
}

.teacher-classes-accordion[open],
.teacher-summary-panel__content {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
}

.teacher-classes-accordion[open] {
  overflow: hidden;
}

.teacher-summary-panel__content {
  max-height: none;
  overflow: hidden;
}

.teacher-summary-panel__scroll,
.student-results-list {
  min-height: 0;
  overflow-y: scroll;
  overscroll-behavior: contain;
  scrollbar-color: var(--accent) var(--accent-soft);
  scrollbar-gutter: stable;
  scrollbar-width: auto;
}

.teacher-summary-panel__scroll::-webkit-scrollbar,
.student-results-list::-webkit-scrollbar {
  width: 0.8rem;
}

.teacher-summary-panel__scroll::-webkit-scrollbar-thumb,
.student-results-list::-webkit-scrollbar-thumb {
  background: var(--accent);
  border: 0.15rem solid var(--accent-soft);
  background-clip: padding-box;
  border-radius: 999px;
}

.teacher-summary-panel__scroll::-webkit-scrollbar-track,
.student-results-list::-webkit-scrollbar-track {
  background: var(--accent-soft);
  border-radius: 999px;
}

.teacher-summary-panel__scroll {
  flex: 1;
  padding-right: 0.45rem;
}

.teacher-results-panel {
  min-width: 0;
}

.dashboard-accordion__content {
  display: grid;
  gap: 0.75rem;
  max-height: 25rem;
}

.student-results-search {
  color: var(--text-muted);
  display: grid;
  font-size: 0.78rem;
  font-weight: 750;
  gap: 0.35rem;
}

.student-results-search input {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  min-height: 2.4rem;
  padding: 0.35rem 0.55rem;
  width: 100%;
}

.student-results-search input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.student-results-list {
  max-height: 17rem;
  padding-right: 0.45rem;
}

.student-results-list > :first-child {
  margin-top: 0;
}

.timeline-item {
  align-items: center;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 1rem;
  grid-template-columns: 3.5rem minmax(0, 1fr) auto;
  padding: 1rem 0;
}

.timeline-item__time {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 850;
}

.timeline-item strong { font-size: 0.92rem; }
.timeline-item p { color: var(--text-muted); font-size: 0.84rem; line-height: 1.5; margin: 0.2rem 0 0; }

.weekly-schedule-panel {
  overflow: hidden;
}

.weekly-schedule-panel .panel__heading p {
  color: var(--text-muted);
  margin: 0.25rem 0 0;
}

.weekly-schedule {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(7, minmax(10.5rem, 1fr));
  margin-top: 1rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-color: var(--border-strong) transparent;
}

.schedule-day {
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  min-width: 0;
  overflow: hidden;
}

.schedule-day > header {
  border-bottom: 1px solid var(--border);
  display: grid;
  padding: 0.75rem;
}

.schedule-day > header span {
  color: var(--accent-strong);
  display: none;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
}

.schedule-day__slots {
  display: grid;
  gap: 0.55rem;
  padding: 0.55rem;
}

.schedule-slot {
  display: grid;
  gap: 0.35rem;
}

.schedule-slot > time {
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 760;
}

.schedule-slot__entries {
  display: grid;
  gap: 0.3rem;
}

.schedule-entry {
  background: var(--surface-raised);
  border-left: 0.22rem solid var(--accent);
  border-radius: 0.35rem;
  box-shadow: 0 0.2rem 0.7rem color-mix(in srgb, var(--text) 6%, transparent);
  display: grid;
  gap: 0.12rem;
  padding: 0.55rem 0.6rem;
}

.schedule-entry strong {
  font-size: 0.79rem;
}

.schedule-entry span,
.schedule-entry small {
  color: var(--text-muted);
  font-size: 0.68rem;
}

.schedule-entry--break {
  background: color-mix(in srgb, var(--success) 9%, var(--surface-raised));
  border-left-color: var(--success);
}

.schedule-day__empty {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin: 0;
  padding: 0.4rem 0.2rem;
}

.schedule-admin-entry strong {
  font-variant-numeric: tabular-nums;
}

.panel .state-card { border-bottom: 0; padding: 0.45rem 0; }

.table-panel {
  background: color-mix(in srgb, var(--surface) 88%, transparent);
}

.class-library {
  display: grid;
  gap: 1rem;
}

.subject-library {
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.subject-library > summary {
  align-items: center;
  cursor: pointer;
  display: flex;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  justify-content: space-between;
  letter-spacing: -0.025em;
  padding: 1rem 1.25rem;
}

.subject-library > summary::marker {
  content: "";
}

.subject-library > summary::-webkit-details-marker {
  display: none;
}

.subject-library > summary::after {
  border-bottom: 2px solid currentColor;
  border-right: 2px solid currentColor;
  content: "";
  height: 0.45rem;
  margin-left: 1rem;
  transform: rotate(45deg) translateY(-0.15rem);
  transition: transform 160ms ease;
  width: 0.45rem;
}

.subject-library[open] > summary::after {
  transform: rotate(225deg) translate(-0.05rem, -0.05rem);
}

.subject-library > summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 30%, transparent);
  outline-offset: -3px;
}

.subject-library__summary {
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  margin-left: auto;
}

.subject-library__content {
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr;
}

.subject-library__section {
  min-width: 0;
}

.subject-library__section + .subject-library__section {
  border-top: 1px solid var(--border);
}

.subject-library__section > summary {
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  font-size: 0.78rem;
  font-weight: 800;
  justify-content: space-between;
  padding: 1rem 1.25rem;
}

.subject-library__section > summary::marker {
  content: "";
}

.subject-library__section > summary::-webkit-details-marker {
  display: none;
}

.subject-library__section > summary::after {
  border-bottom: 2px solid currentColor;
  border-right: 2px solid currentColor;
  content: "";
  height: 0.35rem;
  margin-left: 0.75rem;
  transform: rotate(45deg) translateY(-0.1rem);
  transition: transform 160ms ease;
  width: 0.35rem;
}

.subject-library__section[open] > summary::after {
  transform: rotate(225deg) translate(-0.05rem, -0.05rem);
}

.subject-library__section > summary span {
  background: var(--surface-subtle);
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 0.72rem;
  margin-left: auto;
  padding: 0.1rem 0.4rem;
}

.subject-library__section > summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 30%, transparent);
  outline-offset: -3px;
}

.subject-library__section .material-list {
  border-top: 1px solid var(--border);
  padding: 0.9rem 1.25rem 1.15rem;
}

.material-list {
  display: grid;
  gap: 0.7rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.material-list li {
  font-size: 0.9rem;
  line-height: 1.45;
}

.material-list a {
  font-weight: 720;
}

.material-list strong {
  display: block;
  font-size: 0.84rem;
}

.material-list p {
  color: var(--text-muted);
  margin: 0.18rem 0 0;
}

.material-list__empty {
  color: var(--text-muted);
}

.table-wrap {
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  min-width: 38rem;
  width: 100%;
}

th {
  color: var(--text-muted);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  padding: 0.8rem;
  text-align: left;
}

td {
  border-top: 1px solid var(--border);
  font-size: 0.87rem;
  padding: 0.95rem 0.8rem;
}

.page-shell {
  display: grid;
  min-height: calc(100dvh - 4.5rem);
  padding: clamp(1.5rem, 5vw, 4rem) 1rem;
  place-items: center;
}

.auth-card {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lift);
  max-width: 33rem;
  padding: clamp(1.5rem, 5vw, 2.5rem);
  width: 100%;
}

.auth-card h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.05em;
  line-height: 1;
  margin: 0 0 0.8rem;
}

.auth-card > p {
  color: var(--text-muted);
  line-height: 1.55;
}

.auth-card__intro {
  margin: 0 0 1.4rem;
}

.auth-card form {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.auth-card label {
  color: var(--text);
  display: grid;
  font-size: 0.84rem;
  font-weight: 720;
  gap: 0.45rem;
}

.auth-card input,
.auth-card select,
.auth-card textarea {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  min-height: 2.85rem;
  padding: 0.7rem 0.8rem;
  width: 100%;
}

.auth-card textarea {
  min-height: 7rem;
  resize: vertical;
}

.entry-practice-form__question {
  border: 0;
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding: 0;
}

.entry-practice-form__question legend {
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.45;
  margin-bottom: 0.25rem;
  padding: 0;
}

.auth-card .entry-practice-form__option {
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: grid;
  font-size: 0.95rem;
  gap: 0.7rem;
  grid-template-columns: 1rem minmax(0, 1fr);
  line-height: 1.35;
  padding: 0.8rem 0.9rem;
  transition: background-color 160ms ease, border-color 160ms ease;
}

.auth-card .entry-practice-form__option:hover {
  background: var(--surface-subtle);
  border-color: var(--border-strong);
}

.auth-card .entry-practice-form__option:has(input:checked) {
  background: color-mix(in srgb, var(--accent) 8%, var(--surface-raised));
  border-color: var(--accent);
}

.auth-card .entry-practice-form__option input[type="radio"] {
  accent-color: var(--accent);
  block-size: 1rem;
  inline-size: 1rem;
  margin: 0;
  min-height: 0;
  padding: 0;
  width: auto;
}

.auth-card .entry-practice-form__option:has(input:focus-visible) {
  outline: 3px solid color-mix(in srgb, var(--accent) 30%, transparent);
  outline-offset: 2px;
}

.alert {
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  padding: 0.8rem 0.9rem;
}

.alert-error { background: color-mix(in srgb, var(--danger) 14%, transparent); color: var(--danger); }
.alert-success { background: color-mix(in srgb, var(--success) 14%, transparent); color: var(--success); }
.alert-warning {
  background: color-mix(in srgb, var(--accent) 12%, var(--surface));
  color: var(--text);
}

.alert-warning a {
  color: var(--accent);
  font-weight: 750;
}
.muted { color: var(--text-muted); font-size: 0.85rem; }

.auth-code {
  overflow-wrap: anywhere;
}

.mfa-setup {
  display: grid;
  gap: 1.1rem;
  margin-top: 1.35rem;
}

.mfa-setup__qr {
  background: #ffffff;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  justify-self: center;
  padding: 0.8rem;
}

.mfa-setup__qr img {
  display: block;
  height: auto;
  max-width: 100%;
}

.mfa-setup__steps {
  color: var(--text-muted);
  display: grid;
  font-size: 0.9rem;
  gap: 0.55rem;
  line-height: 1.5;
  margin: 0;
  padding-left: 1.35rem;
}

.auth-card__details {
  border-top: 1px solid var(--border);
  margin-top: 1.25rem;
  padding-top: 1.1rem;
}

.auth-card__details summary {
  color: var(--accent);
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 760;
}

.mfa-manual-key p {
  color: var(--text-muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

.mfa-manual-key code {
  background: var(--surface-subtle);
  border-radius: var(--radius-sm);
  display: block;
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  overflow-wrap: anywhere;
  padding: 0.8rem;
}

.mfa-account {
  background: var(--surface-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.88rem;
  margin: 1.25rem 0 0;
  padding: 0.8rem 0.9rem;
}

.mfa-account strong {
  color: var(--text);
}

.otp-fieldset {
  border: 0;
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
}

.otp-fieldset legend {
  color: var(--text);
  font-size: 0.84rem;
  font-weight: 720;
  margin-bottom: 0.65rem;
  padding: 0;
}

.otp-inputs {
  display: grid;
  gap: clamp(0.35rem, 1.8vw, 0.65rem);
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.auth-card .otp-inputs input {
  aspect-ratio: 1;
  caret-color: var(--accent);
  font-size: clamp(1.2rem, 5vw, 1.65rem);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  min-height: 0;
  padding: 0;
  text-align: center;
}

.auth-card .otp-inputs input:valid {
  border-color: var(--accent);
}

.recovery-code-entry form {
  margin-top: 1rem;
}

.auth-back-link {
  font-size: 0.88rem;
  margin: 1.25rem 0 0;
  text-align: center;
}

.recovery-codes {
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 1.25rem 0;
}

.recovery-codes code {
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 760;
  letter-spacing: 0.05em;
  padding: 0.7rem;
  text-align: center;
}

.recovery-code-actions {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.25rem;
}

.recovery-code-actions > * {
  width: 100%;
}

@media (max-width: 30rem) {
  .recovery-code-actions,
  .recovery-codes {
    grid-template-columns: 1fr;
  }
}

.auth-card__secondary-actions {
  border-top: 1px solid var(--border);
  display: grid;
  gap: 0.65rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
}

.profile-photo {
  border: 1px solid var(--border);
  border-radius: 50%;
  display: block;
  height: 5rem;
  object-fit: cover;
  width: 5rem;
}

.checkbox-label {
  align-items: center;
  display: flex;
  gap: 0.55rem;
}

.auth-card__secondary-actions form {
  margin: 0;
}

.auth-card__secondary-actions button {
  width: 100%;
}

.admin-shell {
  display: grid;
  grid-template-columns: 16rem minmax(0, 1fr);
  min-height: calc(100dvh - 4.5rem);
}

.admin-nav {
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.5rem 1rem;
}

.admin-nav__identity {
  align-items: center;
  display: flex;
  gap: 0.7rem;
  margin-bottom: 1.5rem;
  padding: 0 0.55rem;
}

.admin-nav__identity strong,
.admin-nav__identity span:not(.avatar) {
  display: block;
}

.admin-nav__identity span:not(.avatar) {
  color: var(--text-muted);
  font-size: 0.74rem;
  margin-top: 0.15rem;
}

.admin-nav > a {
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 720;
  padding: 0.7rem 0.8rem;
  text-decoration: none;
}

.admin-nav > a:hover,
.admin-nav > a:focus-visible {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.admin-nav > a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.admin-nav__back {
  margin-top: auto;
}

.admin-workspace {
  margin: 0 auto;
  max-width: 88rem;
  min-width: 0;
  padding: clamp(1.5rem, 4vw, 3.5rem);
  width: 100%;
}

.admin-header {
  align-items: end;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 2.5rem;
}

.admin-header h1,
.admin-section h2,
.admin-form h3,
.admin-list h3 {
  font-family: var(--font-display);
  letter-spacing: -0.035em;
}

.admin-header h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  margin: 0.35rem 0 0.55rem;
}

.admin-header p,
.admin-section__heading p,
.admin-list p,
.form-help,
.empty-copy {
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
  max-width: 60ch;
}

.admin-section {
  border-top: 1px solid var(--border);
  padding: 2.25rem 0;
}

.admin-page {
  border-top: 1px solid var(--border);
  padding-top: 2.25rem;
}

.admin-section__heading {
  margin-bottom: 1.25rem;
}

.admin-section__heading--actions {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
}

.admin-section__heading h2 {
  font-size: 1.55rem;
  margin: 0 0 0.35rem;
}

.admin-form-grid,
.admin-layout {
  align-items: start;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.admin-form-grid--catalogs {
  align-items: start;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1rem;
}

.admin-layout--catalogs {
  grid-template-columns: minmax(0, 1.35fr) minmax(18rem, 0.65fr);
}

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

.admin-layout {
  align-items: start;
  grid-template-columns: minmax(0, 1.35fr) minmax(16rem, 0.65fr);
}

.admin-form,
.admin-list {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: grid;
  gap: 0.85rem;
  padding: 1.15rem;
}

.admin-form--wide {
  width: 100%;
}

.admin-form h3,
.admin-list h3 {
  font-size: 1.1rem;
  margin: 0 0 0.25rem;
}

.admin-form label,
.admin-form fieldset {
  color: var(--text);
  display: grid;
  font-size: 0.84rem;
  font-weight: 720;
  gap: 0.4rem;
}

.admin-form fieldset {
  border: 0;
  margin: 0;
  padding: 0;
}

.admin-form legend {
  margin-bottom: 0.45rem;
}

.admin-form input,
.admin-form select,
.admin-form textarea {
  background: var(--surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  min-height: 2.7rem;
  padding: 0.65rem 0.75rem;
  width: 100%;
}

.admin-form textarea {
  min-height: 5.5rem;
  resize: vertical;
}

.bank-tools {
  margin-bottom: 1rem;
}

.question-modal {
  max-width: 52rem;
}

.question-options {
  display: grid;
  gap: 0.55rem;
}

.question-option-list {
  display: grid;
  gap: 0.55rem;
  margin-top: 0.55rem;
}

.question-option-card {
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: grid;
  gap: 0.45rem;
  padding: 0.6rem;
}

.question-option-row {
  align-items: center;
  display: grid !important;
  gap: 0.55rem !important;
  grid-template-columns: auto minmax(0, 1fr);
}

[data-bank-option-row] .question-option-row {
  grid-template-columns: auto auto minmax(0, 1fr);
}

.question-option-row input[type="radio"] {
  accent-color: var(--accent);
  min-height: 1.1rem;
  padding: 0;
  width: 1.1rem;
}

.option-image-fields > summary {
  color: var(--accent);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 750;
  margin-left: 1.75rem;
}

.option-image-fields > div {
  display: grid;
  gap: 0.6rem;
  padding: 0.7rem 0 0 1.75rem;
}

.option-image-preview {
  align-items: end;
  display: grid;
  gap: 0.65rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.option-image-preview img,
.option-diagram {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: block;
  margin-top: 0.6rem;
  max-height: 15rem;
  max-width: 100%;
  object-fit: contain;
  padding: 0.45rem;
}

.option-image-preview img {
  margin-top: 0;
}

.practice-option {
  align-items: stretch;
  display: flex;
  flex-direction: column;
  text-align: left;
}

.practice-option .option-diagram {
  align-self: center;
}

.question-image-fields {
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: grid;
  gap: 0.8rem;
  padding: 0.9rem;
}

.question-image-preview {
  align-items: end;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.question-image-preview img {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  max-height: 18rem;
  object-fit: contain;
  padding: 0.5rem;
  width: 100%;
}

.question-diagram {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: block;
  margin: 1rem auto 0;
  max-height: min(32rem, 55vh);
  max-width: 100%;
  object-fit: contain;
  padding: 0.6rem;
}

.math-help code,
.math-preview code {
  background: var(--surface-subtle);
  border-radius: 0.35rem;
  color: var(--text);
  font-family: ui-monospace, "Cascadia Code", monospace;
  padding: 0.12rem 0.3rem;
}

.math-preview {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: grid;
  gap: 0.75rem;
  padding: 0.9rem;
}

.math-preview > div:first-child {
  display: grid;
  gap: 0.2rem;
}

.math-preview > div:first-child span,
.math-preview__explanation {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.math-preview__content {
  background: var(--surface-subtle);
  border-radius: var(--radius-sm);
  min-height: 4rem;
  padding: 0.85rem;
}

.math-preview__content p,
.math-preview__content ol {
  margin-block: 0 0.7rem;
}

.math-preview__content > :last-child {
  margin-bottom: 0;
}

[data-math] {
  white-space: pre-wrap;
}

.math-block {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding-block: 0.35rem;
}

.bank-catalog {
  margin-top: 1rem;
}

.bank-subject-groups {
  display: grid;
  gap: 0.7rem;
}

.bank-subject {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: clip;
}

.bank-subject > summary {
  align-items: center;
  background: var(--surface-subtle);
  cursor: pointer;
  display: flex;
  font-family: var(--font-display);
  font-weight: 800;
  gap: 0.75rem;
  justify-content: space-between;
  list-style: none;
  padding: 0.9rem 1rem;
}

.bank-subject > summary::-webkit-details-marker {
  display: none;
}

.bank-subject > summary::after {
  content: "+";
  font-size: 1.25rem;
  font-weight: 500;
  order: 3;
}

.bank-subject[open] > summary::after {
  content: "−";
}

.admin-list .bank-subject > summary span:first-child {
  color: var(--text);
  font-size: 0.95rem;
}

.admin-list .bank-count {
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.76rem;
  font-weight: 650;
  margin-left: auto;
}

.bank-subject__content {
  padding: 0 1rem;
}

.bank-record,
.question-record {
  border-top: 1px solid var(--border);
  display: grid;
  gap: 0.8rem;
  padding: 1rem 0;
}

.bank-record:first-of-type,
.question-record:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.bank-record__heading,
.question-record {
  align-items: start;
  grid-template-columns: minmax(0, 1fr) auto;
}

.bank-record__heading {
  display: grid;
  gap: 0.75rem;
}

.bank-record__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.bank-browser {
  display: grid;
  gap: 1rem;
}

.bank-browser__header {
  align-items: end;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
}

.bank-browser__header h1,
.bank-browser__header p {
  margin: 0;
}

.bank-browser__header p {
  color: var(--text-muted);
  margin-top: 0.35rem;
}

.bank-unit-index {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.bank-unit-index a {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  display: flex;
  font-size: 0.8rem;
  font-weight: 750;
  gap: 0.45rem;
  padding: 0.5rem 0.75rem;
  text-decoration: none;
}

.bank-unit-index a > span,
.bank-unit-index small {
  align-items: center;
  background: var(--surface-subtle);
  border-radius: 999px;
  display: inline-flex;
  justify-content: center;
  min-width: 1.4rem;
  padding: 0.15rem 0.35rem;
}

.bank-unit-list,
.bank-unit__questions {
  display: grid;
  gap: 0.75rem;
}

.bank-unit,
.bank-question {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: clip;
}

.bank-unit > summary,
.bank-question > summary {
  cursor: pointer;
  list-style: none;
}

.bank-unit > summary::-webkit-details-marker,
.bank-question > summary::-webkit-details-marker {
  display: none;
}

.bank-unit > summary {
  align-items: center;
  display: flex;
  justify-content: space-between;
  padding: 1rem 1.1rem;
}

.bank-unit > summary div,
.bank-question > summary {
  display: grid;
  gap: 0.2rem;
}

.bank-unit > summary span,
.bank-question > summary > span:first-child {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.bank-unit__questions {
  border-top: 1px solid var(--border);
  padding: 0.85rem;
}

.bank-question {
  border-radius: var(--radius-sm);
}

.bank-question > summary {
  align-items: center;
  grid-template-columns: auto minmax(0, 1fr) auto;
  padding: 0.85rem;
}

.bank-question__body {
  border-top: 1px solid var(--border);
  display: grid;
  gap: 1rem;
  padding: 1rem;
}

.bank-question__prompt p,
.bank-question__explanation p {
  margin: 0;
}

.bank-option-list {
  display: grid;
  gap: 0.55rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.bank-option {
  background: var(--surface-subtle);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  display: grid;
  gap: 0.65rem;
  padding: 0.7rem;
}

.bank-option > div {
  align-items: center;
  display: grid;
  gap: 0.6rem;
  grid-template-columns: auto minmax(0, 1fr) auto;
}

.bank-option.is-correct {
  border-color: color-mix(in srgb, var(--success) 45%, var(--border));
}

.bank-option__letter {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: inline-flex;
  font-weight: 800;
  height: 1.8rem;
  justify-content: center;
  width: 1.8rem;
}

.bank-option strong,
.status-pill {
  color: var(--success);
  font-size: 0.72rem;
}

.bank-question__explanation {
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
  border-radius: var(--radius-sm);
  padding: 0.8rem;
}

.bank-question__actions {
  display: flex;
  justify-content: flex-end;
}

.bank-record strong,
.bank-record span,
.question-record strong,
.question-record span {
  display: block;
}

.bank-record span,
.question-record span {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 0.2rem;
}

.bank-links {
  display: grid;
  gap: 0.45rem;
}

.bank-link {
  align-items: center;
  background: var(--surface-subtle);
  border-radius: var(--radius-sm);
  display: flex;
  gap: 0.65rem;
  justify-content: space-between;
  padding: 0.65rem 0.75rem;
}

.bank-link span {
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 700;
  margin: 0;
}

.question-record ol {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin: 0.65rem 0 0;
  padding-left: 1.25rem;
}

.question-record li.is-correct {
  color: var(--success);
  font-weight: 780;
}

.import-preview {
  color: var(--text-muted);
  display: grid;
  font-size: 0.82rem;
  gap: 0.55rem;
}

.import-preview p,
.import-preview ul {
  margin: 0;
}

.task-page-actions {
  display: flex;
  justify-content: flex-end;
  margin: 0 0 1rem;
}

.task-create-button {
  border-radius: 999px;
  box-shadow: 0 0.45rem 1.1rem color-mix(in srgb, var(--accent) 24%, transparent);
  gap: 0.5rem;
  min-height: 2.9rem;
  padding-inline: 1.15rem 1.3rem;
}

.task-create-button svg {
  flex: 0 0 auto;
  height: 1.15rem;
  width: 1.15rem;
}

.task-create-button:active {
  transform: translateY(1px);
}

.task-create-button:disabled {
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.55;
}

.task-modal {
  background: transparent;
  border: 0;
  color: var(--text);
  max-height: calc(100dvh - 2rem);
  max-width: 42rem;
  padding: 0;
  width: calc(100% - 2rem);
}

.task-modal::backdrop {
  background: rgb(8 18 28 / 0.58);
  backdrop-filter: blur(3px);
}

.task-modal__form {
  box-shadow: var(--shadow-soft);
  max-height: calc(100dvh - 2rem);
  overflow-y: auto;
  padding: clamp(1.1rem, 3vw, 1.6rem);
}

.task-modal__heading,
.task-modal__actions,
.task-resource-row {
  align-items: center;
  display: flex;
  gap: 0.75rem;
}

.task-modal__heading,
.task-modal__actions {
  justify-content: space-between;
}

.task-modal__heading {
  align-items: start;
}

.task-modal__heading h2,
.task-modal__heading p {
  margin: 0;
}

.task-modal__heading p,
.task-resource-links span {
  color: var(--text-muted);
}

.task-modal__heading p {
  font-size: 0.84rem;
  margin-top: 0.3rem;
}

.task-resource-list,
.task-resource-links {
  display: grid;
  gap: 0.55rem;
}

.task-resource-row input {
  flex: 1;
  min-width: 0;
}

.task-resource-links {
  min-width: 8rem;
}

.unit-exam-question-list {
  display: grid;
  gap: 0.55rem;
  max-height: 18rem;
  overflow-y: auto;
  padding-right: 0.4rem;
}

.unit-exam-question-list label {
  align-items: start;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  font-weight: 600;
  gap: 0.6rem;
  padding: 0.7rem;
}

.unit-exam-question-list input {
  min-height: auto;
  width: auto;
}

.result-tabs {
  display: flex;
  gap: 0.65rem;
  margin: 1.25rem 0;
}

.exam-option.is-selected {
  border-color: var(--primary);
}

.exam-option.is-correct {
  background: color-mix(in srgb, #2f9d64 14%, var(--surface-raised));
  border-color: #2f9d64;
}

.admin-form__split {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.admin-form__split:has(label:nth-child(4)),
.admin-form__split:has(label:nth-child(5)) {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.admin-check-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.admin-check-grid label {
  align-items: center;
  display: flex;
  font-weight: 650;
}

.admin-check-grid input {
  min-height: auto;
  width: auto;
}

.admin-list > div:not(.admin-list__heading):not(.admin-course-controls):not(.course-results) {
  border-top: 1px solid var(--border);
  display: grid;
  gap: 0.2rem;
  padding: 0.8rem 0;
}

.admin-list span {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.admin-record,
.course-result {
  align-items: center;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 0.8rem;
  justify-content: space-between;
  padding: 0.8rem 0;
}

.admin-record > div,
.course-result > div {
  display: grid;
  gap: 0.2rem;
  min-width: 0;
}

.admin-record strong,
.course-result strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.admin-accordion {
  border-bottom: 1px solid var(--border);
}

.admin-accordion summary {
  align-items: center;
  color: var(--text);
  cursor: pointer;
  display: flex;
  font-size: 0.9rem;
  gap: 0.7rem;
  justify-content: space-between;
  list-style: none;
  padding: 0.85rem 0;
}

.admin-accordion summary::-webkit-details-marker {
  display: none;
}

.admin-accordion summary::before {
  color: var(--text-muted);
  content: "+";
  font-size: 1.1rem;
  font-weight: 500;
  line-height: 1;
}

.admin-accordion[open] summary::before {
  content: "−";
}

.admin-accordion summary strong {
  margin-right: auto;
}

.admin-accordion summary span {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 650;
}

.admin-accordion__content {
  padding: 0 0.1rem 0.25rem 1.35rem;
}

.admin-role-group {
  border-bottom: 1px solid var(--border);
  padding: 0;
}

.admin-role-group__heading {
  align-items: baseline;
  display: flex;
  gap: 0.7rem;
  justify-content: space-between;
}

.admin-role-group__heading h4 {
  font-size: 0.9rem;
  margin: 0;
}

.admin-role-group__heading span {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 650;
}

.button--compact {
  flex: 0 0 auto;
  font-size: 0.78rem;
  min-height: 2.25rem;
  padding: 0.45rem 0.65rem;
}

.table-wrap form { margin: 0; }

.exam-shell {
  margin: 0 auto;
  max-width: 54rem;
  padding: clamp(1.5rem, 4vw, 3rem) clamp(1rem, 4vw, 2rem) 4rem;
}

.exam-header {
  align-items: end;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
}

.exam-header h1 { font-family: var(--font-display); margin: 0.8rem 0 0.35rem; }
.exam-header p { color: var(--text-muted); margin: 0; }
.exam-timer { white-space: nowrap; }
.exam-form { display: grid; gap: 1.25rem; margin-top: 1.25rem; }
.exam-question { background: var(--surface-raised); border: 1px solid var(--border); border-radius: var(--radius-sm); display: grid; gap: 0.7rem; margin: 0; padding: 1.2rem; }
.exam-question legend { font-weight: 700; line-height: 1.45; padding: 0 0.25rem; }
.exam-question legend span { color: var(--accent-strong); margin-right: 0.5rem; }
.exam-option { align-items: center; border: 1px solid var(--border); border-radius: var(--radius-sm); cursor: pointer; display: grid; gap: 0.7rem; grid-template-columns: 1rem minmax(0, 1fr); padding: 0.75rem 0.85rem; }
.exam-option:has(input:checked) { background: var(--accent-soft); border-color: var(--accent); }
.exam-option input { accent-color: var(--accent); margin: 0; }
.exam-option:has(input:focus-visible) { outline: 3px solid color-mix(in srgb, var(--accent) 32%, transparent); outline-offset: 2px; }
.exam-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: flex-end; }

/* Corredor de examen: una pregunta a la vez, con progreso persistente. */
.exam-runner {
  --exam-blue: var(--accent-strong);
  --exam-blue-soft: var(--accent-soft);
  --exam-orange: var(--highlight);
  max-width: 100%;
  padding: 0 0 clamp(2rem, 5vw, 4rem);
}

.exam-command {
  align-items: center;
  background: color-mix(in srgb, var(--surface-raised) 96%, transparent);
  border-bottom: 1px solid var(--border);
  display: grid;
  gap: 0.65rem 1.25rem;
  grid-template-columns: minmax(13rem, 1fr) minmax(16rem, 3fr) auto;
  padding: 0.8rem clamp(1rem, 3vw, 2.25rem);
  position: sticky;
  top: 0;
  z-index: 20;
}

.exam-progress-copy {
  color: var(--text-muted);
  display: flex;
  font-size: 0.82rem;
  gap: 0.45rem;
  white-space: nowrap;
}

.exam-progress-copy strong { color: var(--text); }

.exam-progress {
  background: var(--surface-subtle);
  border-radius: 999px;
  height: 0.4rem;
  overflow: hidden;
}

.exam-progress > span {
  background: var(--exam-blue);
  display: block;
  height: 100%;
  transition: width 220ms ease;
  width: 0;
}

.exam-runner .exam-timer {
  align-items: center;
  background: var(--exam-blue-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--border));
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  display: flex;
  gap: 0.7rem;
  margin: 0;
  padding: 0.65rem 0.85rem;
}

.exam-runner .exam-timer span { font-size: 0.75rem; }
.exam-runner .exam-timer strong { color: var(--text); font-size: 1.1rem; letter-spacing: 0.05em; }
.exam-runner .exam-timer.is-warning { background: var(--highlight-soft); border-color: var(--exam-orange); }
.exam-runner .exam-timer.is-warning strong,
.exam-runner .exam-timer.is-expired strong { color: var(--danger); }

.exam-question-map {
  background: var(--surface-raised);
  border-bottom: 1px solid var(--border);
  display: grid;
  gap: 0.4rem;
  grid-template-columns: repeat(auto-fill, minmax(2.45rem, 1fr));
  max-height: 9.25rem;
  overflow-y: auto;
  padding: 0.9rem clamp(1rem, 3vw, 2.25rem);
  scrollbar-color: var(--border-strong) transparent;
}

.exam-question-map button {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 0.45rem;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  min-height: 2.4rem;
  padding: 0.35rem;
}

.exam-question-map button:hover { border-color: var(--accent); color: var(--accent-strong); }
.exam-question-map button.is-answered { background: var(--exam-blue-soft); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); color: var(--accent-strong); }
.exam-question-map button.is-current { background: var(--exam-blue); border-color: var(--exam-blue); color: var(--accent-contrast); box-shadow: 0 5px 14px color-mix(in srgb, var(--accent) 22%, transparent); }

.exam-runner > .alert,
.exam-runner > .exam-form {
  margin-left: auto;
  margin-right: auto;
  max-width: 72rem;
  width: calc(100% - clamp(2rem, 8vw, 7rem));
}

.exam-runner > .alert { margin-top: 1rem; }
.exam-runner .exam-form { gap: 1rem; margin-top: clamp(1.25rem, 4vw, 2.5rem); }

.exam-question--runner {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  gap: 1rem;
  min-height: 25rem;
  padding: clamp(1.25rem, 4vw, 2.75rem);
}

.exam-question--runner[hidden] { display: none; }

.exam-question__meta {
  align-items: center;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.4rem;
  padding-bottom: 1.15rem;
}

.exam-question__meta strong { color: var(--text-muted); font-size: 0.84rem; }

.exam-subject {
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--accent-strong);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  max-width: 70%;
  overflow: hidden;
  padding: 0.4rem 0.75rem;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.exam-prompt {
  background: color-mix(in srgb, var(--surface-subtle) 52%, var(--surface-raised));
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: clamp(1rem, 3vw, 1.75rem);
}

.exam-prompt p {
  color: var(--text);
  font-size: clamp(1rem, 2vw, 1.18rem);
  font-weight: 700;
  line-height: 1.65;
  margin: 0;
}

.exam-options { display: grid; gap: 0.65rem; }

.exam-option-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  min-height: 4.4rem;
  overflow: hidden;
  position: relative;
}

.exam-question--runner .exam-option {
  border: 0;
  border-radius: 0;
  gap: 0.75rem;
  grid-template-columns: 1rem 2rem minmax(0, 1fr);
  min-height: 4.4rem;
  padding: 0.85rem 1rem;
}

.exam-option__letter {
  align-items: center;
  background: var(--surface-subtle);
  border-radius: 50%;
  color: var(--text-muted);
  display: inline-flex;
  font-size: 0.8rem;
  font-weight: 800;
  height: 2rem;
  justify-content: center;
  width: 2rem;
}

.exam-option__content {
  filter: blur(7px);
  opacity: 0.18;
  pointer-events: none;
  transition: filter 140ms ease, opacity 140ms ease;
  user-select: none;
}

.exam-option-wrap.is-revealed .exam-option__content { filter: none; opacity: 1; pointer-events: auto; user-select: text; }
.exam-option-wrap:has(input:checked) { border-color: var(--accent); }
.exam-option-wrap:has(input:checked) .exam-option__letter { background: var(--exam-blue); color: var(--accent-contrast); }

.exam-reveal-option,
.exam-show-prompt {
  align-items: center;
  background: var(--exam-orange);
  border: 0;
  border-radius: 999px;
  box-shadow: 0 8px 18px color-mix(in srgb, var(--highlight) 28%, transparent);
  color: #17232b;
  display: inline-flex;
  font-size: 0.86rem;
  font-weight: 800;
  gap: 0.4rem;
  justify-content: center;
  min-height: 2.6rem;
  padding: 0.55rem 1rem;
  white-space: nowrap;
}

.exam-reveal-option {
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
}

.exam-option-wrap.is-revealed .exam-reveal-option { display: none; }
.exam-show-prompt { justify-self: center; }
.exam-show-prompt[hidden] { display: none; }
.exam-reveal-option:active { transform: translate(-50%, calc(-50% + 1px)) scale(0.98); }
.exam-show-prompt:active { transform: translateY(1px) scale(0.98); }

.exam-save-status { color: var(--text-muted); min-height: 1.2rem; text-align: right; }
.exam-save-status.is-saved { color: var(--success); }
.exam-save-status.is-error { color: var(--danger); }

.exam-actions--runner {
  align-items: center;
  background: color-mix(in srgb, var(--surface-raised) 94%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  justify-content: space-between;
  padding: 0.8rem;
}

.exam-actions__navigation { display: flex; gap: 0.6rem; }
.exam-actions--runner button:active,
.exam-actions--runner .button:active,
.exam-submit-dialog button:active { transform: translateY(1px) scale(0.98); }

.exam-submit-dialog {
  background: transparent;
  border: 0;
  color: var(--text);
  max-width: 32rem;
  padding: 1rem;
  width: calc(100% - 2rem);
}

.exam-submit-dialog::backdrop { background: rgb(4 20 28 / 64%); backdrop-filter: blur(4px); }

.exam-submit-dialog__body {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lift);
  padding: clamp(1.25rem, 5vw, 2rem);
  text-align: center;
}

.exam-submit-dialog h2 { font-family: var(--font-display); margin: 0 0 0.55rem; }
.exam-submit-dialog p { color: var(--text-muted); line-height: 1.6; margin: 0; }
.exam-submit-dialog__actions { display: flex; gap: 0.65rem; justify-content: center; margin-top: 1.4rem; }

@media (prefers-reduced-motion: reduce) {
  .exam-progress > span { transition: none; }
}

@media (max-width: 42rem) {
  .exam-header { align-items: start; flex-direction: column; }
  .exam-actions > * { flex: 1 1 auto; }
  .exam-command { grid-template-columns: 1fr auto; }
  .exam-progress { grid-column: 1 / -1; grid-row: 2; }
  .exam-progress-copy { flex-direction: column; gap: 0; white-space: normal; }
  .exam-runner .exam-timer { align-self: stretch; flex-direction: column; gap: 0; padding: 0.5rem 0.7rem; }
  .exam-question-map { display: flex; max-height: none; overflow-x: auto; }
  .exam-question-map button { flex: 0 0 2.5rem; }
  .exam-runner > .alert,
  .exam-runner > .exam-form { width: calc(100% - 1.5rem); }
  .exam-question--runner { min-height: 23rem; padding: 1rem; }
  .exam-question__meta { align-items: flex-start; flex-direction: column; gap: 0.65rem; }
  .exam-subject { max-width: 100%; }
  .exam-question--runner .exam-option { grid-template-columns: 1rem 1.75rem minmax(0, 1fr); padding: 0.75rem; }
  .exam-option__letter { height: 1.75rem; width: 1.75rem; }
  .exam-actions--runner { align-items: stretch; flex-direction: column-reverse; }
  .exam-actions__navigation { display: grid; grid-template-columns: 1fr 1fr; width: 100%; }
  .exam-actions__navigation [data-submit] { grid-column: 1 / -1; }
  .exam-submit-dialog__actions { align-items: stretch; flex-direction: column-reverse; }
}

.button--danger {
  background: color-mix(in srgb, var(--danger) 12%, var(--surface-raised));
  border: 1px solid color-mix(in srgb, var(--danger) 44%, var(--border-strong));
  color: var(--danger);
}

.button--danger:hover,
.button--danger:focus-visible {
  background: color-mix(in srgb, var(--danger) 20%, var(--surface-raised));
}

.admin-editor[hidden] {
  display: none;
}

.admin-editor {
  border-color: var(--accent);
}

.admin-editor__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.admin-list__heading,
.admin-course-controls,
.course-pagination {
  align-items: end;
  display: flex;
  gap: 0.7rem;
  justify-content: space-between;
}

.admin-course-controls {
  align-items: start;
  border-top: 1px solid var(--border);
  padding-top: 0.85rem;
}

.admin-course-controls label {
  color: var(--text-muted);
  display: grid;
  flex: 1;
  font-size: 0.76rem;
  font-weight: 720;
  gap: 0.35rem;
}

.admin-course-controls input,
.admin-course-controls select {
  background: var(--surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  min-height: 2.5rem;
  padding: 0.55rem 0.65rem;
}

.course-results {
  border-top: 1px solid var(--border);
}

.course-pagination {
  justify-content: start;
}

.course-page {
  background: var(--surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  min-height: 2.3rem;
  min-width: 2.3rem;
  padding: 0.35rem;
}

.course-page:disabled {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-strong);
}

.admin-feedback {
  background: var(--success-soft, color-mix(in srgb, var(--success) 12%, transparent));
  border-radius: var(--radius-sm);
  color: var(--success);
  display: none;
  margin: 0 0 1.2rem;
  padding: 0.8rem 0.9rem;
}

.admin-feedback.is-visible {
  display: block;
}

.admin-feedback.is-error {
  background: color-mix(in srgb, var(--danger) 12%, transparent);
  color: var(--danger);
}

@media (prefers-reduced-motion: no-preference) {
  .study-card--class {
    animation: settle-in 520ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }

  .study-card--progress {
    animation: settle-in 620ms 80ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }
}

@keyframes settle-in {
  from { opacity: 0; transform: translateY(0.8rem) rotate(0deg); }
}

@media (max-width: 62rem) {
  .hero,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero__stage {
    margin: 0 auto;
    max-width: 32rem;
    width: 100%;
  }

  .teacher-summary-panel:has(.teacher-classes-accordion[open]) {
    height: 24rem;
  }

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

  .role-card:first-child {
    grid-column: 1 / 3;
    grid-row: auto;
    min-height: 18rem;
  }

  .role-card:last-child {
    grid-column: 1 / 3;
  }

  .app-shell {
    grid-template-columns: minmax(0, 1fr);
  }

  .admin-shell {
    grid-template-columns: minmax(0, 1fr);
  }

  .admin-nav {
    border-bottom: 1px solid var(--border);
    border-right: 0;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.35rem;
  }

  .admin-nav__identity {
    flex: 1 0 100%;
    margin: 0 0 0.25rem;
  }

  .admin-nav > a {
    min-height: 2.25rem;
    padding: 0.45rem 0.65rem;
    white-space: nowrap;
  }

  .admin-nav__back {
    margin-top: 0;
  }

  .admin-form-grid,
  .admin-layout,
  .admin-form-grid--catalogs,
  .admin-layout--catalogs {
    grid-template-columns: 1fr;
  }

  .admin-list__heading,
  .admin-course-controls {
    align-items: stretch;
    flex-direction: column;
  }

  .sidebar {
    border-bottom: 1px solid var(--border);
    border-right: 0;
    gap: 1rem;
    padding: 1rem;
  }

  .side-nav {
    display: flex;
    gap: 0.35rem;
    overflow-x: auto;
    padding-bottom: 0.2rem;
    scrollbar-width: none;
  }

  .side-nav::-webkit-scrollbar {
    display: none;
  }

  .side-nav__item {
    white-space: nowrap;
  }

  .side-nav__group {
    flex: 0 0 auto;
    position: relative;
  }

  .side-nav__group > summary {
    white-space: nowrap;
  }

  .side-nav__submenu {
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lift);
    left: 0;
    margin: 0.35rem 0 0;
    min-width: 14rem;
    padding: 0.45rem;
    position: absolute;
    top: 100%;
    z-index: 20;
  }

  .sidebar__back {
    margin-top: 0;
  }
}

@media (max-width: 44rem) {
  .weekly-schedule {
    grid-template-columns: repeat(7, minmax(9rem, 1fr));
  }

  .schedule-day > header strong {
    display: none;
  }

  .schedule-day > header span {
    display: block;
  }

  .task-modal__heading,
  .task-modal__actions,
  .task-resource-row {
    align-items: stretch;
    flex-direction: column;
  }

  .task-modal__actions button,
  .task-resource-row button {
    width: 100%;
  }

  .subject-library > summary {
    align-items: start;
    flex-wrap: wrap;
    gap: 0.35rem 0.7rem;
  }

  .subject-library__summary {
    margin-left: 0;
  }

  .subject-library > summary::after {
    margin-left: auto;
  }

  .subject-library__section + .subject-library__section {
    border-top: 1px solid var(--border);
  }

  .site-header {
    padding: 0.65rem 0.8rem;
  }

  .header-note,
  .theme-switcher__trigger > span:nth-child(2) {
    display: none;
  }

  .course-switcher summary {
    border-left: 0;
    max-width: 10rem;
    padding-left: 0;
  }

  .course-switcher summary > span {
    display: none;
  }

  .course-switcher__menu {
    position: fixed;
    right: 0.75rem;
    top: 4.8rem;
  }

  .theme-switcher__trigger {
    min-width: auto;
    padding-right: 0.5rem;
  }

  .theme-menu {
    position: fixed;
    right: 0.75rem;
    top: 4.8rem;
  }

  .landing-shell {
    padding-inline: 1rem;
  }

  .hero h1 {
    font-size: clamp(2.65rem, 13vw, 4rem);
  }

  .hero__stage {
    min-height: 24rem;
  }

  .study-card--class {
    right: 1rem;
  }

  .study-card--progress {
    bottom: 2rem;
  }

  .role-grid,
  .metric-strip {
    grid-template-columns: 1fr;
  }

  .role-card:first-child,
  .role-card:last-child {
    grid-column: auto;
    min-height: 14rem;
  }

  .role-card:first-child h3 {
    font-size: 1.5rem;
    margin-top: 0;
  }

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

  .admin-header {
    align-items: start;
    flex-direction: column;
  }

  .admin-section__heading--actions,
  .question-image-preview,
  .option-image-preview {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .admin-section__heading--actions {
    flex-direction: column;
  }

  .admin-section__heading--actions > button,
  .question-image-preview button {
    width: 100%;
  }

  .bank-record__heading,
  .question-record {
    grid-template-columns: 1fr;
  }

  .bank-browser__header {
    align-items: stretch;
    flex-direction: column;
  }

  .bank-browser__header .button {
    width: 100%;
  }

  .bank-unit > summary {
    align-items: start;
    gap: 0.75rem;
  }

  .bank-question > summary {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .bank-option > div {
    align-items: start;
    grid-template-columns: auto minmax(0, 1fr);
  }

  .bank-option > div > strong {
    grid-column: 2;
  }

  .bank-link {
    align-items: stretch;
    flex-direction: column;
  }

  .bank-link button,
  .bank-record__heading > button,
  .question-record > button {
    width: 100%;
  }

  .admin-form__split,
  .admin-form__split:has(label:nth-child(4)),
  .admin-form__split:has(label:nth-child(5)) {
    grid-template-columns: 1fr;
  }

  .metric + .metric {
    border-left: 0;
    border-top: 1px solid var(--border);
  }

  .timeline-item {
    align-items: start;
    grid-template-columns: 3rem 1fr;
  }

  .timeline-item .button {
    grid-column: 2;
    justify-self: start;
  }
}

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