:root {
  color-scheme: light;
  --font-display: "Iansui", "DFKai-SB", serif;
  --font-body: "Noto Sans TC", "Microsoft JhengHei UI", sans-serif;

  --cream-50: oklch(98% 0.012 78);
  --cream-100: oklch(95% 0.018 78);
  --cream-200: oklch(90% 0.023 75);
  --ink-900: oklch(28% 0.028 46);
  --ink-700: oklch(42% 0.027 45);
  --ink-500: oklch(55% 0.024 51);
  --line: oklch(84% 0.025 65);
  --paper: oklch(99% 0.008 75);
  --paper-raised: oklch(100% 0.004 75);

  --rose: oklch(81% 0.075 18);
  --rose-soft: oklch(94% 0.028 18);
  --sage: oklch(78% 0.07 145);
  --sage-soft: oklch(94% 0.027 145);
  --blue: oklch(82% 0.052 238);
  --blue-soft: oklch(95% 0.02 238);
  --lilac: oklch(83% 0.055 304);
  --lilac-soft: oklch(95% 0.022 304);
  --apricot: oklch(84% 0.074 65);
  --apricot-soft: oklch(95% 0.027 65);
  --caramel: oklch(61% 0.075 61);
  --caramel-dark: oklch(48% 0.065 52);
  --danger: oklch(58% 0.16 24);
  --danger-soft: oklch(94% 0.035 24);
  --success: oklch(52% 0.105 150);
  --success-soft: oklch(94% 0.03 150);

  --sidebar-bg: oklch(36% 0.035 47);
  --sidebar-text: oklch(94% 0.018 70);
  --sidebar-muted: oklch(79% 0.025 66);
  --sidebar-active: oklch(75% 0.055 139);

  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;
  --shadow-float: 0 1rem 3rem oklch(28% 0.028 46 / 0.12);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-toggle: cubic-bezier(0.65, 0, 0.35, 1);
  --z-sidebar: 200;
  --z-dialog: 400;
  --z-toast: 500;
}

[data-theme="dusk"] {
  color-scheme: dark;
  --cream-50: oklch(20% 0.018 47);
  --cream-100: oklch(24% 0.02 47);
  --cream-200: oklch(31% 0.022 47);
  --ink-900: oklch(92% 0.018 70);
  --ink-700: oklch(79% 0.021 67);
  --ink-500: oklch(67% 0.021 62);
  --line: oklch(38% 0.022 51);
  --paper: oklch(25% 0.018 47);
  --paper-raised: oklch(29% 0.02 47);
  --rose-soft: oklch(30% 0.04 18);
  --sage-soft: oklch(30% 0.035 145);
  --blue-soft: oklch(30% 0.035 238);
  --lilac-soft: oklch(30% 0.035 304);
  --apricot-soft: oklch(31% 0.04 65);
  --danger-soft: oklch(30% 0.05 24);
  --success-soft: oklch(30% 0.04 150);
  --sidebar-bg: oklch(16% 0.016 47);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--cream-50);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 20rem;
  background: var(--cream-50);
  color: var(--ink-900);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  font-kerning: normal;
  -webkit-font-smoothing: antialiased;
}

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

button,
select,
label[for] {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
}

button:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible,
a:focus-visible,
label[for]:focus-visible {
  outline: 3px solid var(--caramel);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: var(--space-sm);
  left: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: var(--ink-900);
  color: var(--paper);
  transform: translateY(-180%);
  transition: transform 180ms var(--ease-out);
}

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

.app-shell {
  min-height: 100svh;
}

.sidebar {
  position: fixed;
  z-index: var(--z-sidebar);
  inset: 0 auto 0 0;
  display: flex;
  width: 17.5rem;
  flex-direction: column;
  gap: var(--space-lg);
  overflow-y: auto;
  padding: var(--space-xl) var(--space-md) max(var(--space-lg), env(safe-area-inset-bottom));
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  transition: transform 280ms var(--ease-out);
}

.brand {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding-inline: var(--space-xs);
}

.brand-mark {
  display: grid;
  width: 2.8rem;
  aspect-ratio: 1;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: var(--rose);
  color: oklch(31% 0.05 27);
  font-family: var(--font-display);
  font-size: 1.45rem;
}

.brand h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: 0.04em;
}

.brand-kicker,
.eyebrow {
  margin: 0 0 var(--space-2xs);
  color: var(--ink-500);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand-kicker {
  color: var(--sidebar-muted);
  font-size: 0.62rem;
}

.class-switcher {
  display: grid;
  gap: var(--space-xs);
  padding: var(--space-md);
  border: 1px solid oklch(90% 0.018 70 / 0.18);
  border-radius: var(--radius-md);
  background: oklch(43% 0.032 48);
}

[data-theme="dusk"] .class-switcher {
  background: oklch(22% 0.018 47);
}

.class-switcher label {
  color: var(--sidebar-muted);
  font-size: 0.78rem;
  font-weight: 600;
}

.class-switcher select {
  min-height: 2.75rem;
  width: 100%;
  border: 0;
  border-radius: var(--radius-sm);
  padding-inline: var(--space-sm);
  background: var(--paper);
  color: var(--ink-900);
}

.nav-list {
  display: grid;
  gap: var(--space-2xs);
}

.nav-section-label {
  margin: var(--space-sm) var(--space-sm) var(--space-2xs);
  color: var(--sidebar-muted);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.nav-item,
.utility-button {
  display: flex;
  min-height: 2.75rem;
  width: 100%;
  align-items: center;
  gap: var(--space-sm);
  border: 0;
  border-radius: var(--radius-sm);
  padding: 0.65rem var(--space-sm);
  background: transparent;
  color: var(--sidebar-text);
  text-align: left;
  transition: transform 120ms var(--ease-out), background-color 180ms var(--ease-out), color 180ms var(--ease-out);
}

.nav-item > span:first-child {
  display: grid;
  width: 1.5rem;
  place-items: center;
  color: var(--apricot);
  font-size: 1.15rem;
}

.nav-item.is-active {
  background: var(--sidebar-active);
  color: oklch(25% 0.03 55);
  font-weight: 700;
}

.nav-item.is-active > span:first-child {
  color: oklch(34% 0.06 139);
}

@media (hover: hover) {
  .nav-item:hover,
  .utility-button:hover {
    background: oklch(90% 0.018 70 / 0.1);
    transform: translateX(0.2rem);
  }

  .button:hover,
  .quick-action:hover,
  .student-chip:hover,
  .score-button:hover {
    transform: translateY(-2px);
  }
}

.sidebar-actions {
  display: grid;
  gap: var(--space-2xs);
  margin-top: auto;
  border-top: 1px solid oklch(90% 0.018 70 / 0.17);
  padding-top: var(--space-md);
}

.utility-button {
  color: var(--sidebar-muted);
  font-size: 0.82rem;
}

.file-button {
  cursor: pointer;
}

.utility-danger {
  color: oklch(82% 0.07 24);
}

.utility-logout {
  margin-top: var(--space-xs);
  border-top: 1px solid oklch(90% 0.018 70 / 0.13);
  color: var(--apricot);
}

.sync-button {
  border: 1px solid oklch(90% 0.018 70 / 0.13);
  background: oklch(90% 0.018 70 / 0.06);
}

.sync-dot {
  width: 0.65rem;
  aspect-ratio: 1;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--sidebar-muted);
}

.sync-button.is-syncing .sync-dot {
  background: var(--apricot);
  animation: music-pulse 1.4s ease-in-out infinite;
}

.sync-button.is-synced .sync-dot {
  background: var(--success);
}

.sync-button.is-warning .sync-dot {
  background: var(--danger);
}

.sidebar-footer {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
  color: var(--sidebar-muted);
  font-size: 0.72rem;
}

.sidebar-footer p {
  margin: 0;
}

.workspace {
  min-height: 100svh;
  padding-left: 17.5rem;
}

body.public-mode .sidebar,
body.public-mode .topbar,
body.public-mode .mobile-nav {
  display: none;
}

body.public-mode .workspace {
  padding-left: 0;
}

body.public-mode main {
  min-height: 100svh;
  padding: clamp(var(--space-md), 3vw, var(--space-2xl));
}

body.public-mode #viewRoot {
  width: min(100%, 100rem);
}

.topbar {
  position: sticky;
  z-index: 150;
  top: 0;
  display: flex;
  min-height: 4.6rem;
  align-items: center;
  gap: var(--space-lg);
  border-bottom: 1px solid var(--line);
  padding: var(--space-sm) clamp(var(--space-md), 3vw, var(--space-xl));
  background: var(--cream-50);
}

.menu-button {
  display: none;
  min-width: 2.75rem;
  min-height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
}

.lesson-status {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.lesson-status strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
}

.status-dot {
  width: 0.7rem;
  height: 0.7rem;
  border: 0.2rem solid var(--sage-soft);
  border-radius: 50%;
  background: var(--success);
}

.compact-timer {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  gap: var(--space-xs);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 var(--space-md);
  background: var(--paper);
  color: var(--caramel-dark);
  font-weight: 700;
}

.topbar-date {
  display: flex;
  align-items: baseline;
  gap: var(--space-xs);
  margin-left: auto;
  color: var(--ink-500);
  font-size: 0.78rem;
}

.topbar-date strong {
  color: var(--ink-700);
  font-size: 0.9rem;
}

main {
  min-height: calc(100svh - 4.6rem);
  padding: clamp(var(--space-lg), 3.5vw, var(--space-2xl));
}

#viewRoot {
  width: min(100%, 92rem);
  margin-inline: auto;
}

.view {
  display: grid;
  gap: var(--space-xl);
  animation: enter-view 440ms var(--ease-out) both;
}

.page-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-lg);
}

.page-heading h2,
.dialog-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: 0.035em;
}

.page-heading p {
  max-width: 58ch;
  margin: var(--space-xs) 0 0;
  color: var(--ink-500);
}

.heading-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-xs);
}

.home-board-view {
  gap: var(--space-lg);
}

.home-board-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-lg);
}

.home-board-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: 0.035em;
}

.home-board-tools {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
}

.home-board-date {
  display: grid;
  justify-items: end;
  gap: 0.1rem;
}

.teacher-login-button {
  border: 1px solid color-mix(in oklch, var(--caramel), var(--line) 55%);
  background: var(--apricot-soft);
  color: var(--caramel-dark);
}

.admin-mode-badge {
  display: inline-flex;
  min-height: 2.4rem;
  align-items: center;
  gap: var(--space-xs);
  border-radius: 999px;
  padding: 0 var(--space-sm);
  background: var(--sage-soft);
  color: var(--ink-700);
  font-size: 0.72rem;
  font-weight: 700;
}

.admin-mode-badge span {
  color: var(--success);
  font-size: 0.65rem;
}

.home-board-date strong {
  color: var(--caramel-dark);
}

.home-board-date span {
  color: var(--ink-500);
  font-size: 0.76rem;
}

.classroom-board {
  display: grid;
  grid-template-columns: minmax(22rem, 2fr) minmax(0, 5fr);
  gap: var(--space-md);
  min-height: calc(100svh - 12.5rem);
}

.rollcall-panel,
.contact-book-panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper);
}

.rollcall-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--sage-soft);
}

.contact-book-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 0;
  overflow: hidden;
  padding: 0;
}

.contact-book-panel > .contact-book-heading {
  padding: var(--space-md) var(--space-lg);
}

.board-panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.board-panel-heading h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 400;
}

.rollcall-count {
  display: inline-flex;
  min-width: 3.2rem;
  min-height: 2.3rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--paper);
  color: var(--caramel-dark);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.rollcall-rule {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs);
  margin: 0;
  color: var(--ink-700);
  font-size: 0.7rem;
}

.status-light {
  width: 0.72rem;
  aspect-ratio: 1;
  border-radius: 50%;
}

.status-light.is-on-time { background: var(--success); }
.status-light.is-late { background: var(--danger); }

.home-attendance-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: start;
  gap: var(--space-xs);
  overflow-y: auto;
  padding-right: var(--space-2xs);
  scrollbar-color: var(--line) transparent;
}

.home-attendance-student {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-xs);
  min-height: 4.1rem;
  border: 1px solid color-mix(in oklch, var(--line), transparent 18%);
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-sm);
  background: color-mix(in oklch, var(--paper), var(--sage-soft) 18%);
  color: var(--ink-900);
  text-align: left;
  transition: transform 160ms var(--ease-out), background-color 180ms var(--ease-out), border-color 180ms var(--ease-out);
}

.home-attendance-student > span:nth-child(2) {
  min-width: 0;
}

.home-attendance-student small,
.home-attendance-student strong {
  display: block;
}

.home-attendance-student small {
  color: var(--ink-500);
  font-size: 0.64rem;
}

.home-attendance-student strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.home-attendance-student time {
  grid-column: 2;
  color: var(--ink-500);
  font-size: 0.66rem;
  font-variant-numeric: tabular-nums;
}

.home-attendance-student.is-on-time {
  border-color: color-mix(in oklch, var(--success), var(--line) 48%);
  background: var(--success-soft);
}

.home-attendance-student.is-late {
  border-color: color-mix(in oklch, var(--danger), var(--line) 48%);
  background: var(--danger-soft);
}

.home-attendance-student.is-on-time .attendance-light { border-color: var(--success); background: var(--success); }
.home-attendance-student.is-late .attendance-light { border-color: var(--danger); background: var(--danger); }

.rollcall-detail {
  width: 100%;
  margin-top: auto;
}

.contact-book-heading {
  align-items: flex-end;
}

.contact-book-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-xs);
}

.provider-badge {
  display: inline-flex;
  min-height: 2.25rem;
  align-items: center;
  border-radius: 999px;
  padding: 0 var(--space-sm);
  background: var(--blue-soft);
  color: var(--ink-700);
  font-size: 0.7rem;
  font-weight: 700;
}

.contact-book-frame {
  position: relative;
  min-height: 32rem;
  overflow: hidden;
  border-block: 1px solid var(--line);
  border-radius: 0;
  background: var(--cream-100);
}

.contact-book-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--paper);
}

.contact-book-note {
  margin: 0;
  padding: var(--space-sm) var(--space-lg);
  color: var(--ink-500);
  font-size: 0.72rem;
}

.contact-book-empty {
  display: grid;
  grid-template-columns: minmax(12rem, 0.72fr) minmax(16rem, 1.28fr);
  align-items: center;
  gap: clamp(var(--space-lg), 4vw, var(--space-2xl));
  min-height: 32rem;
  border-block: 1px dashed var(--line);
  border-radius: 0;
  padding: clamp(var(--space-lg), 5vw, var(--space-2xl));
  background: var(--cream-50);
}

.contact-book-empty h4 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 400;
}

.contact-book-empty p:not(.eyebrow) {
  max-width: 48ch;
  color: var(--ink-500);
}

.contact-book-paper {
  display: grid;
  gap: var(--space-md);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  background: var(--paper);
  transform: rotate(-1.8deg);
}

.contact-book-paper span {
  color: var(--caramel-dark);
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.contact-book-paper i {
  display: block;
  height: 1px;
  background: var(--line);
}

.homepage-settings-form {
  display: grid;
  gap: var(--space-xl);
}

.setting-sheet {
  display: grid;
  gap: var(--space-lg);
}

.setting-state {
  display: inline-flex;
  min-height: 2.25rem;
  align-items: center;
  border-radius: 999px;
  padding: 0 var(--space-sm);
  background: var(--cream-100);
  color: var(--ink-500);
  font-size: 0.7rem;
  font-weight: 700;
}

.setting-state.is-on {
  background: var(--success-soft);
  color: var(--ink-700);
}

.homepage-settings-form .field > span {
  color: var(--ink-700);
  font-size: 0.78rem;
  font-weight: 700;
}

.greeting-preview {
  display: grid;
  gap: var(--space-xs);
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  background: var(--rose-soft);
}

.greeting-preview span {
  color: var(--ink-500);
  font-size: 0.7rem;
}

.greeting-preview strong {
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 400;
}

.music-enable-row {
  background: var(--blue-soft);
}

.music-control-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
}

.range-field input[type="range"] {
  min-height: 2.75rem;
  padding: 0;
  accent-color: var(--caramel);
}

.range-field output {
  color: var(--caramel-dark);
  font-variant-numeric: tabular-nums;
}

.music-queue {
  display: grid;
  gap: var(--space-sm);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  background: var(--cream-100);
}

.music-queue > span {
  color: var(--ink-500);
  font-size: 0.72rem;
  font-weight: 700;
}

.music-queue ol {
  display: grid;
  gap: var(--space-xs);
  margin: 0;
  padding: 0;
  list-style: none;
}

.music-queue li {
  display: grid;
  grid-template-columns: 1.8rem minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-sm);
  min-width: 0;
  border-bottom: 1px solid var(--line);
  padding: var(--space-xs) 0;
}

.music-queue li:last-child {
  border-bottom: 0;
}

.music-queue li > span {
  display: grid;
  width: 1.8rem;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background: var(--apricot-soft);
  color: var(--caramel-dark);
  font-size: 0.7rem;
  font-weight: 700;
}

.music-queue code {
  min-width: 0;
  overflow: hidden;
  color: var(--ink-700);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.music-queue a {
  color: var(--caramel-dark);
  font-size: 0.75rem;
}

.settings-error {
  min-height: 0;
}

.settings-save-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  border-top: 1px solid var(--line);
  padding-top: var(--space-lg);
}

.settings-save-row p {
  max-width: 52ch;
  margin: 0;
  color: var(--ink-500);
  font-size: 0.75rem;
}

.check-row {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: var(--space-sm);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
  background: var(--danger-soft);
}

.check-row input {
  width: 1.2rem;
  height: 1.2rem;
  margin-top: 0.15rem;
  accent-color: var(--danger);
}

.check-row strong,
.check-row small {
  display: block;
}

.check-row small {
  margin-top: 0.15rem;
  color: var(--ink-500);
  font-size: 0.7rem;
}

@media (hover: hover) {
  .home-attendance-student:hover {
    border-color: var(--caramel);
    transform: translateY(-1px);
  }
}

.button,
.quick-action,
.score-button {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.62rem var(--space-md);
  background: var(--paper);
  color: var(--ink-900);
  font-weight: 600;
  text-decoration: none;
  transition: transform 160ms var(--ease-out), background-color 180ms var(--ease-out), border-color 180ms var(--ease-out);
}

.button-primary {
  border-color: var(--caramel);
  background: var(--caramel);
  color: oklch(98% 0.01 75);
}

.button-secondary {
  border-color: var(--sage);
  background: var(--sage-soft);
}

.button-rose {
  border-color: var(--rose);
  background: var(--rose-soft);
}

.button-ghost {
  background: transparent;
}

.button-danger {
  border-color: var(--danger);
  background: var(--danger);
  color: oklch(98% 0.01 24);
}

.button-small {
  min-height: 2.25rem;
  padding: 0.4rem var(--space-sm);
  font-size: 0.78rem;
}

.icon-button {
  display: grid;
  min-width: 2.75rem;
  min-height: 2.75rem;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--ink-700);
  font-size: 1.3rem;
}

.button[disabled],
button[disabled] {
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(18rem, 0.65fr);
  gap: var(--space-lg);
}

.today-board {
  position: relative;
  display: grid;
  gap: var(--space-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-lg), 4vw, var(--space-2xl));
  background: var(--paper);
}

.today-board::after {
  position: absolute;
  top: 0;
  right: 0;
  width: 8rem;
  height: 0.65rem;
  border-radius: 0 0 0 var(--radius-sm);
  background: var(--rose);
  content: "";
}

.date-lockup {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: var(--space-lg);
}

.date-number {
  display: grid;
  width: 6.2rem;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background: var(--apricot-soft);
  color: var(--caramel-dark);
  font-family: var(--font-display);
  font-size: 3.2rem;
  line-height: 1;
}

.date-copy h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 400;
}

.date-copy p {
  margin: var(--space-xs) 0 0;
  color: var(--ink-500);
}

.lesson-rhythm {
  display: grid;
  gap: var(--space-sm);
}

.rhythm-track {
  display: grid;
  grid-template-columns: repeat(8, minmax(4rem, 1fr));
  gap: var(--space-xs);
  overflow-x: auto;
  padding-bottom: var(--space-xs);
  scrollbar-color: var(--line) transparent;
}

.period {
  min-width: 4.5rem;
  border-top: 0.4rem solid var(--period-color, var(--blue));
  padding-top: var(--space-xs);
}

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

.period strong {
  font-size: 0.76rem;
}

.period span {
  margin-top: 0.15rem;
  color: var(--ink-500);
  font-size: 0.68rem;
}

.period.is-now {
  color: var(--caramel-dark);
}

.period.is-now strong::after {
  content: " · 現在";
  color: var(--danger);
}

.next-lesson {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  border-top: 1px solid var(--line);
  padding-top: var(--space-lg);
}

.next-lesson p {
  margin: 0;
  color: var(--ink-500);
  font-size: 0.8rem;
}

.next-lesson strong {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
}

.dashboard-side {
  display: grid;
  align-content: start;
  gap: var(--space-lg);
}

.summary-panel {
  display: grid;
  gap: var(--space-md);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  background: var(--sage-soft);
}

.summary-panel.rose {
  background: var(--rose-soft);
}

.summary-panel h3,
.section-heading h3 {
  margin: 0;
  font-size: 1rem;
}

.metric-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  border-top: 1px solid color-mix(in oklch, var(--line), transparent 25%);
  padding-top: var(--space-sm);
}

.metric-row:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.metric-row span {
  color: var(--ink-700);
  font-size: 0.82rem;
}

.metric-row strong {
  font-variant-numeric: tabular-nums;
  font-size: 1.35rem;
}

.tool-launcher,
.content-section,
.tool-panel {
  display: grid;
  gap: var(--space-lg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  background: var(--paper);
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.section-heading p {
  margin: 0;
  color: var(--ink-500);
  font-size: 0.8rem;
}

.quick-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: var(--space-sm);
}

.quick-action {
  min-height: 5.3rem;
  align-items: flex-start;
  flex-direction: column;
  border-color: transparent;
  padding: var(--space-md);
  text-align: left;
}

.quick-action span:first-child {
  font-size: 1.35rem;
}

.quick-action small {
  color: var(--ink-500);
  font-weight: 400;
}

.quick-action:nth-child(5n + 1) { background: var(--rose-soft); }
.quick-action:nth-child(5n + 2) { background: var(--sage-soft); }
.quick-action:nth-child(5n + 3) { background: var(--blue-soft); }
.quick-action:nth-child(5n + 4) { background: var(--lilac-soft); }
.quick-action:nth-child(5n + 5) { background: var(--apricot-soft); }

.attendance-overview {
  display: grid;
  grid-template-columns: minmax(15rem, 0.72fr) minmax(0, 1.28fr);
  gap: var(--space-lg);
}

.attendance-date-panel {
  display: grid;
  align-content: center;
  gap: var(--space-xs);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  background: var(--blue-soft);
}

.attendance-date-panel label {
  color: var(--ink-700);
  font-size: 0.78rem;
  font-weight: 700;
}

.attendance-date-panel input {
  width: min(100%, 17rem);
  min-height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.55rem var(--space-sm);
  background: var(--paper);
}

.attendance-date-panel p {
  margin: 0;
  color: var(--ink-500);
  font-size: 0.76rem;
}

.attendance-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-sm);
}

.attendance-metric {
  display: grid;
  align-content: space-between;
  min-height: 8.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.attendance-metric span {
  color: var(--ink-700);
  font-size: 0.78rem;
  font-weight: 700;
}

.attendance-metric strong {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 400;
  line-height: 1;
}

.attendance-metric.is-on-time { background: var(--success-soft); }
.attendance-metric.is-late { background: var(--danger-soft); }
.attendance-metric.is-waiting { background: var(--apricot-soft); }
.attendance-metric.is-on-time strong { color: var(--success); }
.attendance-metric.is-late strong { color: var(--danger); }
.attendance-metric.is-waiting strong { color: var(--caramel-dark); }

.attendance-cutoff {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--caramel-dark) !important;
  font-weight: 700;
}

.attendance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--space-sm);
}

.attendance-student {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-sm);
  min-height: 5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  background: var(--cream-50);
  color: var(--ink-900);
  text-align: left;
  transition: transform 160ms var(--ease-out), background-color 180ms var(--ease-out), border-color 180ms var(--ease-out);
}

.attendance-student.is-on-time {
  border-color: color-mix(in oklch, var(--success), var(--line) 48%);
  background: var(--success-soft);
}

.attendance-student.is-late {
  border-color: color-mix(in oklch, var(--danger), var(--line) 48%);
  background: var(--danger-soft);
}

.attendance-light {
  width: 1rem;
  aspect-ratio: 1;
  border: 2px solid var(--line);
  border-radius: 50%;
  background: var(--paper);
}

.attendance-student.is-on-time .attendance-light {
  border-color: color-mix(in oklch, var(--success), var(--paper) 24%);
  background: var(--success);
}

.attendance-student.is-late .attendance-light {
  border-color: color-mix(in oklch, var(--danger), var(--paper) 24%);
  background: var(--danger);
}

.attendance-student-copy {
  min-width: 0;
}

.attendance-student-copy small,
.attendance-student-copy strong,
.attendance-result strong,
.attendance-result time {
  display: block;
}

.attendance-student-copy small {
  color: var(--ink-500);
  font-size: 0.7rem;
}

.attendance-student-copy strong {
  overflow: hidden;
  margin-top: 0.1rem;
  font-size: 1.05rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.attendance-result {
  text-align: right;
}

.attendance-result strong {
  font-size: 0.78rem;
}

.attendance-result time {
  margin-top: 0.15rem;
  color: var(--ink-500);
  font-size: 0.7rem;
  font-variant-numeric: tabular-nums;
}

.attendance-student.is-on-time .attendance-result strong { color: var(--success); }
.attendance-student.is-late .attendance-result strong { color: var(--danger); }

@media (hover: hover) {
  .attendance-student:not([disabled]):hover {
    border-color: var(--caramel);
    transform: translateY(-2px);
  }
}

.task-list,
.assignment-list,
.student-list,
.score-list {
  display: grid;
  gap: var(--space-xs);
  margin: 0;
  padding: 0;
  list-style: none;
}

.task-item,
.assignment-item,
.student-row,
.score-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-sm);
  min-height: 3.5rem;
  border-top: 1px solid var(--line);
  padding: var(--space-sm) 0;
}

.task-item:first-child,
.assignment-item:first-child,
.student-row:first-child,
.score-row:first-child {
  border-top: 0;
}

.task-item input[type="checkbox"],
.assignment-item input[type="checkbox"] {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--success);
}

.task-main,
.student-main {
  min-width: 0;
}

.task-main strong,
.student-main strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.task-main span,
.student-main span,
.assignment-meta {
  display: block;
  margin-top: 0.1rem;
  color: var(--ink-500);
  font-size: 0.74rem;
}

.task-item.is-done .task-main {
  opacity: 0.55;
  text-decoration: line-through;
}

.task-badge,
.status-badge {
  display: inline-flex;
  min-height: 1.8rem;
  align-items: center;
  border-radius: 999px;
  padding: 0.25rem var(--space-xs);
  background: var(--blue-soft);
  color: var(--ink-700);
  font-size: 0.68rem;
  font-weight: 700;
  white-space: nowrap;
}

.task-badge.is-overdue,
.status-badge.is-danger {
  background: var(--danger-soft);
  color: var(--danger);
}

.status-badge.is-success {
  background: var(--success-soft);
  color: var(--success);
}

.empty-state {
  display: grid;
  justify-items: start;
  gap: var(--space-sm);
  padding: var(--space-xl) 0;
  color: var(--ink-500);
}

.empty-symbol {
  display: grid;
  width: 3.5rem;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background: var(--blue-soft);
  font-size: 1.5rem;
}

.empty-state h3,
.empty-state p {
  margin: 0;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 0.75fr) minmax(0, 1.25fr);
  gap: var(--space-lg);
  align-items: start;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
}

.field {
  display: grid;
  gap: var(--space-xs);
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  color: var(--ink-700);
  font-size: 0.78rem;
  font-weight: 600;
}

.field input,
.field select,
.field textarea,
.inline-input {
  width: 100%;
  min-height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.62rem var(--space-sm);
  background: var(--paper-raised);
}

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

.field-hint {
  margin: 0;
  color: var(--ink-500);
  font-size: 0.72rem;
}

.timer-stage {
  display: grid;
  justify-items: center;
  gap: var(--space-lg);
  min-height: 25rem;
  align-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  background: var(--blue-soft);
  text-align: center;
}

.timer-stage.is-running .timer-face {
  animation: timer-breathe 2s var(--ease-toggle) infinite alternate;
}

.timer-face {
  display: grid;
  width: min(18rem, 72vw);
  aspect-ratio: 1;
  place-items: center;
  border: 0.7rem solid var(--paper);
  border-radius: 50%;
  background: var(--paper-raised);
  color: var(--ink-900);
  box-shadow: inset 0 0 0 1px var(--line);
}

.timer-value {
  font-size: clamp(3.6rem, 9vw, 6.3rem);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  letter-spacing: -0.06em;
}

.timer-caption {
  margin-top: -1.2rem;
  color: var(--ink-500);
}

.timer-actions,
.preset-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xs);
}

.wheel-layout {
  display: grid;
  grid-template-columns: minmax(20rem, 1.1fr) minmax(17rem, 0.9fr);
  gap: var(--space-xl);
  align-items: center;
}

.wheel-stage {
  position: relative;
  display: grid;
  justify-items: center;
  gap: var(--space-lg);
}

.wheel-pointer {
  position: absolute;
  z-index: 2;
  top: -0.25rem;
  left: 50%;
  color: var(--danger);
  font-size: 2.4rem;
  transform: translateX(-50%) rotate(180deg);
}

.wheel {
  position: relative;
  display: grid;
  width: min(30rem, 76vw);
  aspect-ratio: 1;
  place-items: center;
  overflow: hidden;
  border: 0.75rem solid var(--paper);
  border-radius: 50%;
  background: conic-gradient(
    var(--rose) 0deg 45deg,
    var(--sage) 45deg 90deg,
    var(--blue) 90deg 135deg,
    var(--lilac) 135deg 180deg,
    var(--apricot) 180deg 225deg,
    var(--rose) 225deg 270deg,
    var(--sage) 270deg 315deg,
    var(--blue) 315deg 360deg
  );
  box-shadow: 0 0 0 1px var(--line);
  transition: transform 3.8s cubic-bezier(0.1, 0.7, 0.1, 1);
}

.wheel::after {
  width: 7rem;
  aspect-ratio: 1;
  border: 0.5rem solid var(--paper);
  border-radius: 50%;
  background: var(--caramel);
  content: "";
}

.wheel-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.wheel-label {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 42%;
  color: oklch(26% 0.03 47);
  font-size: 0.76rem;
  font-weight: 700;
  text-align: right;
  text-shadow: 0 1px 0 oklch(98% 0.01 75 / 0.5);
  transform: translate(-100%, -50%) rotate(var(--angle)) translateX(-6%) rotate(90deg);
  transform-origin: 100% 50%;
}

.winner-card {
  min-height: 7rem;
  border: 1px solid var(--rose);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  background: var(--rose-soft);
  text-align: center;
}

.winner-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
}

.student-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.student-chip {
  display: inline-flex;
  min-height: 2.5rem;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem var(--space-sm);
  background: var(--paper);
  transition: transform 150ms var(--ease-out), opacity 180ms var(--ease-out);
}

.student-chip.is-muted {
  opacity: 0.38;
  text-decoration: line-through;
}

.seat-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-md);
}

.seat-summary {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-sm);
  border-block: 1px solid var(--line);
  padding-block: var(--space-sm);
  color: var(--ink-500);
  font-size: 0.75rem;
  font-weight: 700;
}

.group-table-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: var(--space-lg);
  padding-block: var(--space-sm);
}

.group-table {
  position: relative;
  min-height: 17rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: color-mix(in oklch, var(--table-color), var(--paper) 42%);
}

.group-table-core {
  position: absolute;
  z-index: 0;
  inset: 31% 20%;
  display: grid;
  place-content: center;
  border: 1px solid color-mix(in oklch, var(--caramel), var(--line) 58%);
  border-radius: var(--radius-md);
  background: var(--apricot-soft);
  text-align: center;
}

.group-table-core strong,
.group-table-core small {
  display: block;
}

.group-table-core strong {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
}

.group-table-core small {
  color: var(--ink-500);
  font-size: 0.66rem;
}

.table-seat {
  position: absolute;
  z-index: 1;
  display: grid;
  width: 43%;
  min-height: 4.35rem;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-xs);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: var(--space-xs);
  background: var(--paper);
  color: var(--ink-900);
  text-align: left;
  transition: transform 150ms var(--ease-out), border-color 150ms var(--ease-out);
}

.table-seat small {
  display: grid;
  width: 1.55rem;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background: var(--table-color);
  color: var(--ink-700);
  font-size: 0.66rem;
  font-weight: 700;
}

.table-seat strong {
  overflow: hidden;
  font-size: 0.76rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.table-seat:hover {
  border-color: var(--caramel);
  transform: translateY(-2px);
}

.seat-position-1 { top: var(--space-sm); left: var(--space-sm); }
.seat-position-2 { top: var(--space-sm); right: var(--space-sm); }
.seat-position-3 { bottom: var(--space-sm); left: var(--space-sm); }
.seat-position-4 { right: var(--space-sm); bottom: var(--space-sm); }
.seat-position-5 {
  top: 50%;
  right: var(--space-sm);
  width: 38%;
  transform: translateY(-50%);
}

.seat-position-5:hover {
  transform: translateY(calc(-50% - 2px));
}

.teacher-desk {
  justify-self: center;
  min-width: 11rem;
  border: 1px solid var(--caramel);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--apricot-soft);
  text-align: center;
  font-weight: 700;
}

.roster-sheet {
  display: grid;
  gap: var(--space-lg);
}

.duty-list {
  display: grid;
  border-top: 1px solid var(--line);
}

.duty-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-md);
  border-bottom: 1px solid var(--line);
  padding-block: var(--space-md);
}

.duty-number {
  color: var(--caramel-dark);
  font-family: var(--font-display);
  font-size: 1.45rem;
}

.duty-main {
  display: grid;
  min-width: 0;
  gap: var(--space-xs);
}

.duty-main h3,
.cleaning-card h3 {
  margin: 0;
}

.roster-people {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.roster-person {
  display: inline-flex;
  min-height: 2rem;
  align-items: center;
  border-radius: 999px;
  padding-inline: var(--space-sm);
  background: var(--sage-soft);
  color: var(--ink-700);
  font-size: 0.72rem;
  font-weight: 700;
}

.duty-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-xs);
}

.cleaning-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: var(--space-md);
}

.cleaning-card {
  display: grid;
  min-width: 0;
  align-content: start;
  gap: var(--space-md);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  background: var(--job-color, var(--cream-100));
}

.cleaning-card-heading {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-sm);
}

.cleaning-card-heading > span {
  color: var(--caramel-dark);
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.cleaning-card-heading p {
  margin: var(--space-xs) 0 0;
  color: var(--ink-700);
  font-size: 0.78rem;
  overflow-wrap: anywhere;
}

.student-assignment-fieldset {
  min-width: 0;
  margin: 0;
  border: 0;
  padding: 0;
}

.student-assignment-fieldset legend {
  margin-bottom: var(--space-xs);
  color: var(--ink-700);
  font-size: 0.78rem;
  font-weight: 700;
}

.assignment-student-grid {
  display: grid;
  max-height: 18rem;
  grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr));
  gap: var(--space-xs);
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  background: var(--cream-50);
}

.assignment-student {
  display: grid;
  min-width: 0;
  min-height: 3.2rem;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-xs);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: var(--space-xs);
  cursor: pointer;
}

.assignment-student:has(input:checked) {
  border-color: color-mix(in oklch, var(--success), var(--line) 58%);
  background: var(--success-soft);
}

.assignment-student input {
  width: 1.15rem;
  height: 1.15rem;
  accent-color: var(--success);
}

.assignment-student small,
.assignment-student strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.assignment-student small {
  color: var(--ink-500);
  font-size: 0.62rem;
}

.assignment-empty {
  display: grid;
  gap: var(--space-2xs);
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  background: var(--cream-50);
}

.assignment-empty span {
  color: var(--ink-500);
  font-size: 0.76rem;
}

.group-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: var(--space-sm);
}

.group-block {
  min-height: 10rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  background: var(--group-color, var(--blue-soft));
}

.group-block h3 {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
}

.group-block ul {
  display: grid;
  gap: var(--space-xs);
  margin: 0;
  padding: 0;
  list-style: none;
}

.group-block li {
  border-top: 1px solid color-mix(in oklch, var(--line), transparent 30%);
  padding-top: var(--space-xs);
}

.scoreboard {
  display: grid;
  gap: var(--space-xs);
}

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

.score-value {
  min-width: 3.5rem;
  color: var(--caramel-dark);
  font-size: 1.55rem;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  text-align: center;
}

.score-controls {
  display: flex;
  gap: var(--space-2xs);
}

.score-button {
  min-width: 2.75rem;
  padding: 0;
}

.leader-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  border-top: 1px solid var(--line);
  padding: var(--space-sm) 0;
}

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

.leader-rank {
  display: grid;
  width: 2rem;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background: var(--apricot-soft);
  font-weight: 700;
}

.progress-bar {
  height: 0.55rem;
  overflow: hidden;
  border-radius: 999px;
  background: var(--cream-200);
}

.progress-bar > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--sage);
}

.subject-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: var(--space-sm);
}

.subject-block {
  display: grid;
  gap: var(--space-md);
  border-top: 0.45rem solid var(--subject-color, var(--blue));
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  background: var(--paper-raised);
}

.subject-block h3,
.subject-block p {
  margin: 0;
}

.subject-block p {
  color: var(--ink-500);
  font-size: 0.8rem;
}

.schedule-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper);
}

.schedule-table {
  width: 100%;
  min-width: 50rem;
  border-collapse: collapse;
  table-layout: fixed;
}

.schedule-table th,
.schedule-table td {
  border: 1px solid var(--line);
  padding: var(--space-sm);
  text-align: center;
}

.schedule-table th {
  background: var(--cream-100);
  font-size: 0.78rem;
}

.schedule-table td:first-child {
  width: 5rem;
  color: var(--ink-500);
  font-size: 0.72rem;
}

.schedule-cell {
  display: grid;
  min-height: 4.2rem;
  width: 100%;
  place-items: center;
  border: 0;
  border-radius: var(--radius-sm);
  padding: var(--space-xs);
  background: var(--cell-color, transparent);
  text-align: center;
}

.schedule-cell strong,
.schedule-cell small {
  display: block;
}

.schedule-cell small {
  color: var(--ink-500);
}

.class-card-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: var(--space-sm);
}

.class-card {
  display: grid;
  gap: var(--space-md);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  background: var(--paper);
}

.class-card.is-current {
  border-color: var(--sage);
  background: var(--sage-soft);
}

.class-card h3,
.class-card p {
  margin: 0;
}

.class-card p {
  color: var(--ink-500);
}

.class-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: var(--space-lg);
}

.help-section {
  display: grid;
  align-content: start;
  gap: var(--space-sm);
  border-top: 1px solid var(--line);
  padding-top: var(--space-md);
}

.help-section h3,
.help-section p {
  margin: 0;
}

.help-section p,
.help-section li {
  color: var(--ink-700);
}

.help-section ul {
  display: grid;
  gap: var(--space-xs);
  margin: 0;
  padding-left: 1.25rem;
}

.form-dialog,
.confirm-dialog {
  width: min(92vw, 38rem);
  max-height: min(88svh, 52rem);
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 0;
  background: var(--paper);
  color: var(--ink-900);
  box-shadow: var(--shadow-float);
}

.form-dialog::backdrop,
.confirm-dialog::backdrop {
  background: oklch(22% 0.025 47 / 0.54);
}

.form-dialog form,
.confirm-dialog form {
  display: grid;
  gap: var(--space-lg);
  padding: var(--space-xl);
}

.dialog-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: var(--space-md);
}

.dialog-heading h2 {
  font-size: 1.7rem;
}

.dialog-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-xs);
}

.form-error {
  min-height: 1.5rem;
  margin: 0;
  color: var(--danger);
  font-size: 0.8rem;
}

.confirm-dialog form {
  justify-items: center;
  text-align: center;
}

.confirm-dialog h2,
.confirm-dialog p {
  margin: 0;
}

.confirm-symbol {
  display: grid;
  width: 3.5rem;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 1.7rem;
  font-weight: 700;
}

.login-dialog {
  width: min(92vw, 31rem);
}

.login-dialog form {
  gap: var(--space-md);
}

.login-mark {
  display: grid;
  width: 4.2rem;
  aspect-ratio: 1;
  place-items: center;
  justify-self: center;
  border: 0.45rem solid var(--rose-soft);
  border-radius: 50%;
  background: var(--rose);
  color: oklch(31% 0.05 27);
  font-family: var(--font-display);
  font-size: 1.7rem;
}

.login-copy {
  text-align: center;
}

.login-copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
}

.login-copy > p:last-child {
  margin: var(--space-xs) auto 0;
  max-width: 34ch;
  color: var(--ink-500);
  font-size: 0.86rem;
}

.login-dialog .field > span {
  color: var(--ink-700);
  font-size: 0.78rem;
  font-weight: 700;
}

.login-security-note {
  margin: 0;
  color: var(--ink-500);
  font-size: 0.7rem;
  text-align: center;
}

.morning-music-dock {
  position: fixed;
  z-index: 260;
  right: max(var(--space-lg), env(safe-area-inset-right));
  bottom: max(var(--space-lg), env(safe-area-inset-bottom));
  width: min(20rem, calc(100vw - 2rem));
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper);
  box-shadow: var(--shadow-float);
}

.morning-music-dock[hidden] {
  display: none;
}

.morning-music-stage {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--ink-900);
}

.morning-music-stage iframe,
.morning-music-player {
  width: 100%;
  height: 100%;
  border: 0;
}

.morning-music-controls {
  display: flex;
  min-height: 3.6rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  background: var(--cream-50);
}

.morning-music-controls > div {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: var(--space-xs);
}

.morning-music-controls > div > span:last-child {
  overflow: hidden;
  color: var(--ink-700);
  font-size: 0.7rem;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.music-pulse {
  width: 0.65rem;
  aspect-ratio: 1;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--ink-500);
}

.morning-music-dock.is-playing .music-pulse {
  background: var(--success);
  animation: music-pulse 1.8s ease-in-out infinite;
}

.toast-region {
  position: fixed;
  z-index: var(--z-toast);
  right: max(var(--space-lg), env(safe-area-inset-right));
  bottom: max(var(--space-lg), env(safe-area-inset-bottom));
  pointer-events: none;
}

.toast {
  display: flex;
  min-height: 3.25rem;
  align-items: center;
  gap: var(--space-sm);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: var(--space-sm) var(--space-md);
  background: var(--ink-900);
  color: var(--paper);
  box-shadow: var(--shadow-float);
  opacity: 0;
  pointer-events: none;
  transform: translateY(1rem);
  transition: opacity 220ms var(--ease-out), transform 220ms var(--ease-out);
}

.toast.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.toast button {
  border: 0;
  background: transparent;
  color: var(--apricot);
  font-weight: 700;
}

.mobile-nav {
  display: none;
}

.tabular {
  font-variant-numeric: tabular-nums;
}

.muted {
  color: var(--ink-500);
}

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

@keyframes enter-view {
  from { opacity: 0; transform: translateY(0.7rem); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes timer-breathe {
  from { transform: scale(1); }
  to { transform: scale(1.018); }
}

@keyframes music-pulse {
  50% { transform: scale(0.72); opacity: 0.55; }
}

@media (max-width: 70rem) {
  .dashboard-grid,
  .split-layout,
  .wheel-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 56rem) {
  .sidebar {
    width: min(88vw, 20rem);
    transform: translateX(-105%);
    box-shadow: var(--shadow-float);
  }

  body.sidebar-open .sidebar {
    transform: translateX(0);
  }

  body.sidebar-open::after {
    position: fixed;
    z-index: 190;
    inset: 0;
    background: oklch(22% 0.025 47 / 0.42);
    content: "";
  }

  .workspace {
    padding-left: 0;
  }

  .menu-button {
    display: grid;
    place-items: center;
  }

  .topbar-date {
    display: none;
  }

  main {
    padding-bottom: 6.5rem;
  }

  .classroom-board {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .home-attendance-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-height: none;
  }

  .contact-book-frame,
  .contact-book-empty {
    min-height: 28rem;
  }

  .music-control-grid {
    grid-template-columns: 1fr;
  }

  .settings-save-row {
    align-items: stretch;
    flex-direction: column;
  }

  .mobile-nav {
    position: fixed;
    z-index: 180;
    inset: auto 0 0;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    padding: var(--space-xs) max(var(--space-xs), env(safe-area-inset-right)) max(var(--space-xs), env(safe-area-inset-bottom)) max(var(--space-xs), env(safe-area-inset-left));
    border-top: 1px solid var(--line);
    background: var(--paper);
  }

  .mobile-nav button {
    display: grid;
    min-height: 3.4rem;
    place-items: center;
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--ink-500);
  }

  .mobile-nav button span {
    font-size: 1.1rem;
    line-height: 1;
  }

  .mobile-nav button small {
    font-size: 0.66rem;
  }

  .mobile-nav button.is-active {
    background: var(--sage-soft);
    color: var(--ink-900);
  }
}

@media (max-width: 42rem) {
  .topbar {
    gap: var(--space-sm);
  }

  .lesson-status .eyebrow {
    display: none;
  }

  .lesson-status strong {
    max-width: 11rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .compact-timer {
    margin-left: auto;
    padding-inline: var(--space-sm);
  }

  main {
    padding: var(--space-md) var(--space-md) 6.5rem;
  }

  .view {
    gap: var(--space-lg);
  }

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

  .home-board-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .home-board-date {
    justify-items: start;
  }

  .home-board-tools {
    width: 100%;
    align-items: flex-start;
    justify-content: space-between;
  }

  .contact-book-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .contact-book-actions {
    justify-content: flex-start;
  }

  .contact-book-empty {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .contact-book-paper {
    display: none;
  }

  .morning-music-dock {
    right: var(--space-sm);
    bottom: var(--space-sm);
    width: min(18rem, calc(100vw - 1.5rem));
  }

  .heading-actions {
    justify-content: flex-start;
  }

  .heading-actions .button {
    flex: 1 1 auto;
  }

  .dashboard-side,
  .field-grid,
  .attendance-overview {
    grid-template-columns: 1fr;
  }

  .attendance-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .attendance-metric {
    min-height: 6.8rem;
    padding: var(--space-md);
  }

  .attendance-metric strong {
    font-size: 2rem;
  }

  .field.full {
    grid-column: auto;
  }

  .today-board,
  .tool-launcher,
  .content-section,
  .tool-panel {
    padding: var(--space-md);
  }

  .date-lockup {
    grid-template-columns: auto 1fr;
    gap: var(--space-md);
  }

  .date-number {
    width: 4.6rem;
    font-size: 2.4rem;
  }

  .date-copy h3 {
    font-size: 1.3rem;
  }

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

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

  .quick-action {
    min-height: 6rem;
  }

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

  .task-item > :last-child,
  .assignment-item > :last-child {
    grid-column: 2;
    justify-self: start;
  }

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

  .group-table-grid {
    grid-template-columns: 1fr;
  }

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

  .duty-row .duty-actions {
    grid-column: 2;
    justify-content: flex-start;
  }

  .dialog-actions .button {
    flex: 1 1 auto;
  }

  .form-dialog form,
  .confirm-dialog form {
    padding: var(--space-lg);
  }

  .toast-region {
    right: var(--space-sm);
    bottom: calc(5.2rem + env(safe-area-inset-bottom));
    left: var(--space-sm);
  }

  .toast {
    justify-content: center;
    border-radius: var(--radius-md);
  }
}

@media (pointer: coarse) {
  .button,
  .nav-item,
  .utility-button,
  .score-button {
    min-height: 3rem;
  }
}

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

@media print {
  .sidebar,
  .topbar,
  .mobile-nav,
  .heading-actions,
  .sidebar-actions,
  .button,
  .score-controls,
  .attendance-date-panel input {
    display: none !important;
  }

  .attendance-overview {
    grid-template-columns: 1fr;
  }

  .workspace {
    padding: 0;
  }

  main {
    padding: 0;
  }

  body {
    background: white;
    color: black;
  }

  .view,
  .content-section,
  .tool-panel {
    border: 0;
    animation: none;
  }
}