/* ClassPlanner — shared theme */
/* Design system: calm academic UI (serif headlines, layered surfaces) */

:root,
[data-theme="light"] {
  --color-surface: #f7f9fb;
  --color-background: #f7f9fb;
  --color-surface-bright: #f7f9fb;
  --color-surface-dim: #d8dadc;
  --color-surface-container-lowest: #ffffff;
  --color-surface-container-low: #f2f4f6;
  --color-surface-container: #eceef0;
  --color-surface-container-high: #e6e8ea;
  --color-surface-container-highest: #e0e3e5;
  --color-on-surface: #191c1e;
  --color-on-surface-variant: #434655;
  --color-outline: #737686;
  --color-outline-variant: #c3c6d7;
  --color-primary: #004ac6;
  --color-primary-container: #2563eb;
  --color-on-primary: #ffffff;
  --color-on-primary-container: #eeefff;
  --color-primary-fixed: #dbe1ff;
  --color-primary-fixed-dim: #b4c5ff;
  --color-on-primary-fixed: #00174b;
  --color-on-primary-fixed-variant: #003ea8;
  --color-secondary: #006a61;
  --color-secondary-container: #86f2e4;
  --color-on-secondary: #ffffff;
  --color-on-secondary-container: #006f66;
  --color-secondary-fixed: #89f5e7;
  --color-secondary-fixed-dim: #6bd8cb;
  --color-on-secondary-fixed: #00201d;
  --color-on-secondary-fixed-variant: #005049;
  --color-tertiary: #3e3fcc;
  --color-tertiary-container: #585be6;
  --color-on-tertiary: #ffffff;
  --color-tertiary-fixed: #e1e0ff;
  --color-tertiary-fixed-dim: #c0c1ff;
  --color-on-tertiary-fixed: #07006c;
  --color-on-tertiary-fixed-variant: #2f2ebe;
  --color-error: #ba1a1a;
  --color-error-container: #ffdad6;
  --color-on-error: #ffffff;
  --color-on-error-container: #93000a;
  --color-inverse-surface: #2d3133;
  --color-inverse-on-surface: #eff1f3;
  --color-inverse-primary: #b4c5ff;
  --color-surface-tint: #0053db;
  --color-on-background: #191c1e;
  --gradient-primary: linear-gradient(135deg, #004ac6, #2563eb);
  --gradient-hero: linear-gradient(135deg, #2563eb 0%, #3e3fcc 100%);
  --glass-bg: rgba(247, 249, 251, 0.7);
  --glass-border: rgba(255, 255, 255, 0.42);
  --shadow-card: 0 4px 14px rgba(15, 23, 42, 0.06);
}

[data-theme="dark"] {
  --color-surface: #0b1220;
  --color-background: #0b1220;
  --color-surface-bright: #18233a;
  --color-surface-dim: #070b14;
  --color-surface-container-lowest: #0f172a;
  --color-surface-container-low: #131c30;
  --color-surface-container: #1a2540;
  --color-surface-container-high: #22304d;
  --color-surface-container-highest: #2b3959;
  --color-on-surface: #e6eaf2;
  --color-on-surface-variant: #a8b3c5;
  --color-outline: #75849e;
  --color-outline-variant: #243049;
  --color-primary: #8bb7ff;
  --color-primary-container: #3568df;
  --color-on-primary: #07111f;
  --color-on-primary-container: #eef4ff;
  --color-primary-fixed: #172a55;
  --color-primary-fixed-dim: #244173;
  --color-on-primary-fixed: #dbe8ff;
  --color-on-primary-fixed-variant: #9fc3ff;
  --color-secondary: #6fd3c8;
  --color-secondary-container: #123f3b;
  --color-on-secondary: #061615;
  --color-on-secondary-container: #bff5ee;
  --color-secondary-fixed: #143f3b;
  --color-secondary-fixed-dim: #215f59;
  --color-on-secondary-fixed: #d3fbf6;
  --color-on-secondary-fixed-variant: #8ce3d8;
  --color-tertiary: #a7a8ff;
  --color-tertiary-container: #4a4cd9;
  --color-on-tertiary: #090a20;
  --color-tertiary-fixed: #23245a;
  --color-tertiary-fixed-dim: #333587;
  --color-on-tertiary-fixed: #eeefff;
  --color-on-tertiary-fixed-variant: #c9cbff;
  --color-error: #ffb4ab;
  --color-error-container: #641f1a;
  --color-on-error: #270400;
  --color-on-error-container: #ffdad6;
  --color-inverse-surface: #e6eaf2;
  --color-inverse-on-surface: #182033;
  --color-inverse-primary: #004ac6;
  --color-surface-tint: #8bb7ff;
  --color-on-background: #e6eaf2;
  --gradient-primary: linear-gradient(135deg, #477ee8, #5c60f0);
  --gradient-hero: linear-gradient(135deg, #2754c7 0%, #4a4cd9 100%);
  --glass-bg: rgba(20, 28, 48, 0.72);
  --glass-border: rgba(110, 164, 255, 0.18);
  --shadow-card: 0 4px 18px rgba(0, 0, 0, 0.45);
}

html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--color-surface);
  color: var(--color-on-surface);
  transition: background-color 150ms ease, color 150ms ease;
}
h1, h2, h3, h4, h5 { font-family: 'Manrope', sans-serif; }
.font-headline { font-family: 'Manrope', sans-serif; }
.font-body { font-family: 'Inter', sans-serif; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 120;
  padding: 0.75rem 1rem;
  border-radius: 9999px;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-weight: 700;
  box-shadow: 0 12px 30px -16px rgba(0, 74, 198, 0.8);
  transform: translateY(-180%);
  transition: transform 0.2s ease;
}

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

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
}

/* Glassmorphism */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-color: var(--glass-border);
}
.glass-dark {
  background: rgba(45, 49, 51, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* Signature gradients */
.gradient-primary { background-image: var(--gradient-primary); }
.gradient-primary-text {
  background-image: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* AI Insight Card — use .ai-card-surface on light panels only; do not combine with .hero-primary */
.ai-card { border-left: 4px solid var(--color-secondary); background: var(--color-surface-container-lowest); }

/* Shared elevated surfaces for grouped content and modal bodies */
.surface-panel,
[class*="surface-panel-compact"],
[class*="bg-surface-container-lowest"][class*="rounded-3xl"][class*="shadow-sm"],
[class*="bg-surface-container-lowest"][class*="rounded-[2rem]"][class*="shadow-sm"] {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(243, 247, 255, 0.99));
  box-shadow:
    0 0 0 1px rgba(0, 74, 198, 0.08),
    0 18px 40px -32px rgba(15, 23, 42, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.84);
}

.surface-panel-compact {
  border: 1px solid rgba(0, 74, 198, 0.08);
}

.surface-modal,
[class*="bg-surface-container-lowest"][class*="shadow-2xl"] {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.995), rgba(241, 246, 255, 0.995));
  box-shadow:
    0 0 0 1px rgba(0, 74, 198, 0.12),
    0 32px 84px -44px rgba(15, 23, 42, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .surface-panel,
[data-theme="dark"] [class*="surface-panel-compact"],
[data-theme="dark"] [class*="bg-surface-container-lowest"][class*="rounded-3xl"][class*="shadow-sm"],
[data-theme="dark"] [class*="bg-surface-container-lowest"][class*="rounded-[2rem]"][class*="shadow-sm"] {
  background: linear-gradient(180deg, rgba(20, 30, 52, 0.98), rgba(12, 18, 32, 0.98));
  box-shadow:
    0 0 0 1px rgba(139, 183, 255, 0.12),
    0 18px 42px -30px rgba(0, 0, 0, 0.65),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .surface-modal,
[data-theme="dark"] [class*="bg-surface-container-lowest"][class*="shadow-2xl"] {
  background: linear-gradient(180deg, rgba(20, 30, 52, 0.995), rgba(12, 18, 32, 0.995));
  box-shadow:
    0 0 0 1px rgba(139, 183, 255, 0.16),
    0 32px 84px -44px rgba(0, 0, 0, 0.82),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .ai-card {
  background: var(--color-surface-container-lowest);
  border-left-color: var(--color-secondary);
}

[data-theme="dark"] .builder-config-card {
  background: linear-gradient(180deg, rgba(25, 37, 63, 0.98), rgba(16, 25, 43, 0.98));
  border-color: rgba(139, 183, 255, 0.18);
  box-shadow:
    0 18px 38px -34px rgba(0, 0, 0, 0.76),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

[data-theme="dark"] .builder-config-card label {
  color: var(--color-on-surface-variant) !important;
}

/* Form fields: keep Tailwind/forms resets from leaving light fields with dark-mode text. */
:is(input, textarea, select)[class*="bg-surface-container"] {
  color: var(--color-on-surface) !important;
  -webkit-text-fill-color: var(--color-on-surface);
  caret-color: var(--color-primary);
}

:is(input, textarea, select)[class~="bg-surface-container-low"] {
  background-color: var(--color-surface-container-low) !important;
}

:is(input, textarea, select)[class~="bg-surface-container"] {
  background-color: var(--color-surface-container) !important;
}

:is(input, textarea, select)[class~="bg-surface-container-high"] {
  background-color: var(--color-surface-container-high) !important;
}

:is(input, textarea, select)[class~="bg-surface-container-lowest"] {
  background-color: var(--color-surface-container-lowest) !important;
}

:is(input, textarea)[class*="bg-surface-container"]::placeholder {
  color: var(--color-on-surface-variant) !important;
  -webkit-text-fill-color: var(--color-on-surface-variant);
  opacity: 0.72;
}

:is(select)[class*="bg-surface-container"] option {
  background-color: var(--color-surface-container-lowest);
  color: var(--color-on-surface);
}

[data-theme="dark"] :is(input, textarea, select)[class*="bg-surface-container"] {
  color-scheme: dark;
}

:is(input, textarea)[class*="bg-surface-container"]:-webkit-autofill {
  -webkit-text-fill-color: var(--color-on-surface);
  box-shadow: 0 0 0 1000px var(--color-surface-container-low) inset;
}

:is(input, textarea, select)[class~="bg-surface"] {
  background-color: var(--color-surface) !important;
  color: var(--color-on-surface) !important;
  -webkit-text-fill-color: var(--color-on-surface);
  caret-color: var(--color-primary);
}

:is(input, textarea)[class~="bg-surface"]::placeholder {
  color: var(--color-on-surface-variant) !important;
  -webkit-text-fill-color: var(--color-on-surface-variant);
  opacity: 0.72;
}

/* Page-local field classes need higher-priority theme rules because they load after theme.css. */
:is(input, textarea, select):is(
  .builder-config-input,
  .tile-input,
  .soft-field,
  .borderless-input,
  .title-input,
  .seamless,
  .editor-input,
  .editor-textarea,
  .reflection-textarea,
  .copilot-input,
  .global-copilot__input
) {
  color: var(--color-on-surface) !important;
  -webkit-text-fill-color: currentColor;
  caret-color: var(--color-primary);
}

:is(input, textarea, select).borderless-input:not([class*="bg-surface-container"]) {
  background-color: var(--color-surface-container-lowest) !important;
  border-color: rgba(0, 74, 198, 0.14) !important;
  color: var(--color-on-surface) !important;
  -webkit-text-fill-color: var(--color-on-surface);
}

:is(input, textarea).borderless-input:not([class*="bg-surface-container"]) {
  background-image: none !important;
}

:is(input, textarea, select).borderless-input[class*="bg-surface-container"] {
  border-color: rgba(0, 74, 198, 0.14) !important;
}

:is(input, textarea, select).title-input:not([class*="bg-surface-container"]) {
  background-color: transparent !important;
  background-image: none !important;
  color: var(--color-on-surface) !important;
  -webkit-text-fill-color: var(--color-on-surface);
}

:is(input, textarea, select):is(.builder-config-input, .tile-input, .soft-field) {
  background-color: var(--color-surface-container-lowest) !important;
  border-color: rgba(0, 74, 198, 0.12) !important;
}

:is(input, textarea):is(
  .builder-config-input,
  .tile-input,
  .soft-field,
  .borderless-input,
  .title-input,
  .seamless,
  .editor-input,
  .editor-textarea,
  .reflection-textarea,
  .copilot-input,
  .global-copilot__input
)::placeholder {
  color: var(--color-on-surface-variant) !important;
  -webkit-text-fill-color: var(--color-on-surface-variant);
  opacity: 0.72;
}

:is(select):is(.builder-config-input, .tile-input, .soft-field, .borderless-input) option {
  background-color: var(--color-surface-container-lowest);
  color: var(--color-on-surface);
}

:is(input, textarea):is(
  .builder-config-input,
  .tile-input,
  .soft-field,
  .borderless-input,
  .title-input,
  .seamless,
  .editor-input,
  .editor-textarea,
  .reflection-textarea,
  .copilot-input,
  .global-copilot__input
):-webkit-autofill {
  -webkit-text-fill-color: var(--color-on-surface);
  box-shadow: 0 0 0 1000px var(--color-surface-container-lowest) inset;
}

[data-theme="dark"] :is(input, textarea, select):is(.builder-config-input, .tile-input, .soft-field) {
  background-color: var(--color-surface-container-lowest) !important;
  border-color: rgba(139, 183, 255, 0.16) !important;
  box-shadow:
    0 0 0 1px rgba(139, 183, 255, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.06) !important;
  color: var(--color-on-surface) !important;
  -webkit-text-fill-color: var(--color-on-surface);
  color-scheme: dark;
}

[data-theme="dark"] :is(input, textarea, select).borderless-input {
  border-color: rgba(139, 183, 255, 0.22) !important;
}

[data-theme="dark"] :is(input, textarea, select):is(
  .borderless-input,
  .title-input,
  .seamless,
  .editor-input,
  .editor-textarea,
  .reflection-textarea,
  .copilot-input,
  .global-copilot__input
) {
  color-scheme: dark;
}

[data-theme="dark"] .reflection-textarea:focus,
[data-theme="dark"] :is(.editor-input, .editor-textarea):focus,
[data-theme="dark"] .copilot-composer,
[data-theme="dark"] .global-copilot__composer {
  background-color: var(--color-surface-container-lowest) !important;
}

/* ─── Primary hero surfaces (guaranteed contrast; avoids white-on-white when utilities conflict or omit bg-primary) ─── */
.hero-primary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}

.hero-primary .hero-subtle {
  color: rgba(255, 255, 255, 0.88);
}

.hero-primary .hero-field {
  background-color: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.26);
}

.hero-primary .hero-icon-well {
  background-color: rgba(255, 255, 255, 0.2);
}

.hero-primary h1,
.hero-primary h2,
.hero-primary h3,
.hero-primary h4 {
  color: inherit;
}

.hero-primary .material-symbols-outlined {
  color: inherit;
}

.hero-primary input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]),
.hero-primary select,
.hero-primary textarea {
  color: var(--color-on-primary) !important;
  -webkit-text-fill-color: var(--color-on-primary);
}

.hero-primary input::placeholder,
.hero-primary textarea::placeholder {
  opacity: 1;
  color: rgba(255, 255, 255, 0.55) !important;
  -webkit-text-fill-color: rgba(255, 255, 255, 0.55);
}

.hero-primary option {
  color: var(--color-on-surface);
  background-color: var(--color-surface-container-lowest);
}

.hero-primary label {
  color: rgba(255, 255, 255, 0.85);
}

.hero-primary :is(button, a):focus-visible,
.hero-primary input:focus-visible,
.hero-primary select:focus-visible,
.hero-primary textarea:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.95);
  outline-offset: 2px;
}

.chip-primary-active {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}

.badge-taught {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}

.bubble-chat-user {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}

/* Solid light CTA on blue hero — avoids relying on Tailwind `!` in CDN builds */
.hero-primary .btn-hero-light {
  background-color: #fff;
  color: var(--color-primary) !important;
  -webkit-text-fill-color: var(--color-primary);
}

/* Dashboard schedule cards */
.dashboard-stat-card {
  background: linear-gradient(180deg, rgba(219, 225, 255, 0.98), rgba(241, 246, 255, 0.98));
  border: 1px solid rgba(0, 74, 198, 0.10);
  box-shadow:
    0 14px 30px -28px rgba(0, 74, 198, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.82);
}

.schedule-card {
  background: linear-gradient(180deg, rgba(219, 225, 255, 0.98), rgba(241, 246, 255, 0.98));
  border: 1px solid rgba(0, 74, 198, 0.10);
  box-shadow:
    0 14px 30px -28px rgba(0, 74, 198, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.82);
  color: inherit;
  text-decoration: none;
}

.schedule-card,
.schedule-card__icon,
.schedule-card__chip,
.schedule-card__extra,
.schedule-card__avatar {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.schedule-card:is(:hover, :focus-visible) {
  background: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: 0 24px 50px -28px rgba(0, 74, 198, 0.65);
  transform: translateY(-2px);
}

.schedule-card:is(:hover, :focus-visible) .schedule-card__icon,
.schedule-card:is(:hover, :focus-visible) .schedule-card__chip,
.schedule-card:is(:hover, :focus-visible) .schedule-card__extra {
  background-color: rgba(255, 255, 255, 0.18);
  color: var(--color-on-primary);
}

.schedule-card:is(:hover, :focus-visible) .schedule-card__muted {
  color: rgba(255, 255, 255, 0.82);
}

.schedule-card:is(:hover, :focus-visible) .schedule-card__avatar {
  border-color: rgba(255, 255, 255, 0.45);
}

[data-theme="dark"] .dashboard-stat-card,
[data-theme="dark"] .schedule-card {
  background: linear-gradient(180deg, rgba(25, 41, 78, 0.98), rgba(15, 24, 43, 0.98));
  border-color: rgba(139, 183, 255, 0.14);
  box-shadow:
    0 18px 36px -30px rgba(0, 0, 0, 0.8),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .schedule-card:is(:hover, :focus-visible) {
  background: var(--color-primary-container);
  color: var(--color-on-primary-container);
}

[data-theme="dark"] .snapshot-item.is-dragging {
  background: rgba(18, 28, 48, 0.98) !important;
  border-color: rgba(139, 183, 255, 0.2) !important;
  box-shadow: 0 28px 44px -28px rgba(0, 0, 0, 0.82);
}

/* Dashboard class-order drag and drop */
.snapshot-item {
  max-height: 8rem;
  transform-origin: center;
  transition:
    max-height 0.2s ease,
    margin 0.2s ease,
    padding 0.2s ease,
    border-width 0.2s ease,
    box-shadow 0.18s ease,
    border-color 0.18s ease,
    background-color 0.18s ease,
    opacity 0.18s ease;
}

.snapshot-handle {
  cursor: grab;
  touch-action: none;
}

.snapshot-item.is-dragging {
  position: fixed;
  z-index: 90;
  pointer-events: none;
  margin: 0 !important;
  box-shadow: 0 28px 44px -28px rgba(15, 23, 42, 0.42);
  border-color: rgba(0, 74, 198, 0.14) !important;
  background: rgba(255, 255, 255, 0.98) !important;
  transform: rotate(1deg) scale(1.01);
}

.snapshot-item.is-dragging .snapshot-handle {
  cursor: grabbing;
}

.snapshot-item.is-drag-collapsed {
  max-height: 0 !important;
  height: 0 !important;
  min-height: 0 !important;
  margin: 0 !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  border-width: 0 !important;
  box-shadow: none !important;
  opacity: 0 !important;
  overflow: hidden !important;
}

.snapshot-item.is-drag-collapsed > * {
  opacity: 0;
}

.snapshot-drop-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 6rem;
  border-radius: 1.5rem;
  border: 2px dashed rgba(45, 49, 51, 0.48);
  background: rgba(45, 49, 51, 0.18);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.18),
    0 18px 30px -26px rgba(15, 23, 42, 0.35);
  transition: background-color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.snapshot-drop-indicator__label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 0.95rem;
  border-radius: 9999px;
  background: rgba(45, 49, 51, 0.22);
  color: rgba(25, 28, 30, 0.86);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

body.snapshot-drag-active {
  user-select: none;
  cursor: grabbing;
}

/* Global AI copilot */
.global-copilot__overlay {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(15, 23, 42, 0.22);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}

.global-copilot__launcher {
  position: fixed;
  right: 2rem;
  bottom: 2rem;
  z-index: 85;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4.35rem;
  height: 4.35rem;
  border: 1px solid rgba(0, 74, 198, 0.16);
  border-radius: 9999px;
  background:
    radial-gradient(circle at 32% 28%, rgba(255, 255, 255, 0.26), transparent 42%),
    linear-gradient(135deg, #004ac6, #2563eb);
  box-shadow:
    0 28px 40px -24px rgba(0, 74, 198, 0.66),
    0 0 0 1px rgba(255, 255, 255, 0.18) inset;
  color: #fff;
  pointer-events: auto;
  transition: transform 0.22s ease, box-shadow 0.22s ease, opacity 0.18s ease;
}

.global-copilot__launcher:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow:
    0 34px 48px -26px rgba(0, 74, 198, 0.72),
    0 0 0 1px rgba(255, 255, 255, 0.22) inset;
}

.global-copilot__launcher .material-symbols-outlined {
  font-size: 2rem;
  font-variation-settings: 'FILL' 1, 'wght' 600, 'GRAD' 0, 'opsz' 24;
}

.global-copilot__drawer {
  position: fixed;
  top: 5rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 80;
  width: min(25rem, calc(100vw - 1rem));
  display: flex;
  flex-direction: column;
  border-radius: 2rem;
  border: 1px solid rgba(0, 74, 198, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.995), rgba(241, 246, 255, 0.99));
  box-shadow:
    0 34px 90px -44px rgba(15, 23, 42, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
  transform: translateX(calc(100% + 1.5rem));
  opacity: 0;
  pointer-events: none;
  overflow: hidden;
  transition: transform 0.28s cubic-bezier(0.2, 0, 0, 1), opacity 0.22s ease;
}

.global-copilot__messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: linear-gradient(180deg, rgba(247, 249, 251, 0.84), rgba(255, 255, 255, 0.92));
}

.global-copilot__initial {
  border: 1px solid rgba(0, 74, 198, 0.08);
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.9);
  padding: 1.35rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.global-copilot__initial-list {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.global-copilot__message {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
}

.global-copilot__message--user {
  justify-content: flex-end;
}

.global-copilot__message-icon {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
  border-radius: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 74, 198, 0.14);
  color: var(--color-primary);
}

.global-copilot__message-icon .material-symbols-outlined {
  font-size: 1rem;
  font-variation-settings: 'FILL' 1, 'wght' 500, 'GRAD' 0, 'opsz' 24;
}

.global-copilot__bubble {
  max-width: 84%;
  padding: 0.9rem 1rem;
  border-radius: 1.35rem;
  font-size: 0.92rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
  word-break: break-word;
  box-shadow:
    0 14px 28px -24px rgba(15, 23, 42, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.82);
}

.global-copilot__message--assistant .global-copilot__bubble {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 74, 198, 0.08);
  color: var(--color-on-surface-variant);
  border-bottom-left-radius: 0.45rem;
}

.global-copilot__message--user .global-copilot__bubble {
  background: linear-gradient(135deg, #004ac6, #2563eb);
  color: var(--color-on-primary);
  border-bottom-right-radius: 0.45rem;
}

.global-copilot__composer {
  display: flex;
  align-items: flex-end;
  gap: 0.7rem;
  padding: 0.5rem;
  border: 1px solid rgba(0, 74, 198, 0.12);
  border-radius: 1.7rem;
  background: rgba(255, 255, 255, 0.94);
  box-shadow:
    0 18px 30px -28px rgba(15, 23, 42, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.global-copilot__composer:focus-within {
  border-color: rgba(0, 74, 198, 0.28);
  box-shadow:
    0 0 0 4px rgba(0, 74, 198, 0.1),
    0 18px 30px -28px rgba(15, 23, 42, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
}

.global-copilot__input {
  width: 100%;
  min-height: 3rem;
  max-height: 10rem;
  border: 0;
  border-radius: 1.25rem;
  background: transparent;
  padding: 0.6rem 0.8rem;
  font: inherit;
  line-height: 1.55;
  color: var(--color-on-surface);
  resize: none;
  overflow-y: auto;
  overflow-wrap: anywhere;
  word-break: break-word;
  box-shadow: none;
  outline: none;
}

.global-copilot__input::placeholder {
  color: var(--color-outline);
}

.global-copilot__submit {
  flex-shrink: 0;
  width: 2.85rem;
  height: 2.85rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.1rem;
}

.global-copilot.is-open .global-copilot__overlay {
  opacity: 1;
  pointer-events: auto;
}

.global-copilot.is-open .global-copilot__drawer {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

.global-copilot.is-open .global-copilot__launcher {
  opacity: 0;
  transform: translateY(0.5rem) scale(0.94);
  pointer-events: none;
}

[data-theme="dark"] .global-copilot__overlay {
  background: rgba(0, 0, 0, 0.42);
}

[data-theme="dark"] .global-copilot__launcher,
[data-theme="dark"] .global-copilot__message--user .global-copilot__bubble {
  background:
    radial-gradient(circle at 32% 28%, rgba(255, 255, 255, 0.18), transparent 42%),
    var(--gradient-primary);
  box-shadow:
    0 28px 40px -24px rgba(0, 0, 0, 0.8),
    0 0 0 1px rgba(255, 255, 255, 0.12) inset;
}

[data-theme="dark"] .global-copilot__drawer,
[data-theme="dark"] .global-copilot__messages,
[data-theme="dark"] .global-copilot__initial,
[data-theme="dark"] .global-copilot__message--assistant .global-copilot__bubble,
[data-theme="dark"] .global-copilot__composer {
  background: linear-gradient(180deg, rgba(19, 29, 50, 0.98), rgba(12, 18, 32, 0.98));
  border-color: rgba(139, 183, 255, 0.12);
  box-shadow:
    0 22px 54px -40px rgba(0, 0, 0, 0.8),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

@media (max-width: 767px) {
  .global-copilot__launcher {
    right: 1rem;
    bottom: 1rem;
    width: 4rem;
    height: 4rem;
  }

  .global-copilot__drawer {
    top: 4.5rem;
    right: 0.5rem;
    bottom: 0.5rem;
    width: calc(100vw - 1rem);
  }

  .global-copilot__messages {
    padding: 1rem;
  }
}

/* No-line rule helpers */
.divider-soft { background: var(--color-outline-variant); opacity: 0.15; height: 1px; border: 0; }

/* Hide scrollbar utility */
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* Soft focus rings */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
summary:focus-visible,
[role="button"]:focus-visible,
[role="link"]:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid rgba(0, 74, 198, 0.9);
  outline-offset: 2px;
}

.focus-soft:focus-visible { box-shadow: 0 0 0 2px rgba(0, 83, 219, 0.18); }

/* Animation utility */
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.animate-fade-in { animation: fadeIn 0.4s ease-out; }

@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
.shimmer {
  background: linear-gradient(90deg, var(--color-surface-container-low) 0%, var(--color-surface-container-high) 50%, var(--color-surface-container-low) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.6s infinite;
}

@media (prefers-reduced-motion: reduce) {
  body,
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}

/* Prose for lesson plan rendering */
.prose-lesson h2 { font-size: 1.5rem; font-weight: 800; margin-top: 2rem; margin-bottom: 1rem; }
.prose-lesson h3 { font-size: 1.125rem; font-weight: 700; margin-top: 1.5rem; margin-bottom: 0.5rem; }
.prose-lesson p { margin-bottom: 1rem; line-height: 1.7; color: var(--color-on-surface-variant); }
.prose-lesson ul { margin-left: 1.25rem; list-style: disc; margin-bottom: 1rem; }
.prose-lesson ol { margin-left: 1.25rem; list-style: decimal; margin-bottom: 1rem; }
.prose-lesson li { margin-bottom: 0.25rem; color: var(--color-on-surface-variant); }
.prose-lesson strong { color: var(--color-on-surface); font-weight: 700; }
.prose-lesson code { background: var(--color-surface-container-low); padding: 0.125rem 0.375rem; border-radius: 0.375rem; font-family: ui-monospace, monospace; font-size: 0.875em; }
.prose-lesson pre { background: var(--color-surface-container-low); padding: 1rem; border-radius: 0.75rem; overflow-x: auto; margin-bottom: 1rem; }

/* Print styles */
@media print {
  aside, header, .no-print { display: none !important; }
  main { margin: 0 !important; padding: 0 !important; }
  body { background: white !important; }
}