@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+Arabic:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');

:root {
  color-scheme: light;
  --ink: #262820;
  --ink-soft: #4d5047;
  --muted: #74786e;
  --subtle: #92958c;
  --paper: #f5f3ec;
  --surface: #fffefa;
  --surface-raised: #ffffff;
  --surface-muted: #f8f6f0;
  --surface-2: #f8f6f0;
  --line: #e7e3d9;
  --line-strong: #d4d0c5;
  --line-dark: #d4d0c5;
  --brand: #6d5bb7;
  --brand-hover: #59499e;
  --brand-strong: #59499e;
  --brand-deep: #59499e;
  --brand-soft: #efecf8;
  --accent: #6d5bb7;
  --accent-hover: #59499e;
  --accent-soft: #efecf8;
  --teal: #6d5bb7;
  --teal-dark: #59499e;
  --teal-soft: #efecf8;
  --lime: #e4efe7;
  --navy: #20231f;
  --sidebar: #20231f;
  --sidebar-text: #e7e5dc;
  --sidebar-muted: #a4a69d;
  --sidebar-hover: rgba(255, 255, 255, .055);
  --sidebar-active: rgba(255, 255, 255, .09);
  --mint: #e4efe7;
  --success: #27785f;
  --success-bg: #eaf3ec;
  --warning: #9c681e;
  --warning-bg: #f8f0df;
  --danger: #a54843;
  --danger-bg: #f8eae7;
  --info: #4c6486;
  --info-bg: #eaf0f6;
  --shadow-sm: 0 1px 2px rgba(36, 35, 28, .035);
  --shadow-md: 0 8px 22px rgba(36, 35, 28, .065);
  --shadow-lg: 0 18px 44px rgba(25, 26, 22, .14);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --ease-out-strong: cubic-bezier(.23, 1, .32, 1);
  --ease-in-out-strong: cubic-bezier(.77, 0, .175, 1);
  --ease-drawer: cubic-bezier(.32, .72, 0, 1);
  --motion-press: 120ms var(--ease-out-strong);
  --motion-ui: 180ms var(--ease-out-strong);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --ink: #eeede6;
  --ink-soft: #d0d0c7;
  --muted: #a4a69c;
  --subtle: #85877e;
  --paper: #171916;
  --surface: #20221e;
  --surface-raised: #252722;
  --surface-muted: #252722;
  --surface-2: #252722;
  --line: #34362f;
  --line-strong: #484a42;
  --line-dark: #484a42;
  --brand: #b0a1eb;
  --brand-hover: #c3b8f1;
  --brand-strong: #c3b8f1;
  --brand-deep: #c3b8f1;
  --brand-soft: #312d40;
  --accent: #b0a1eb;
  --accent-hover: #c3b8f1;
  --accent-soft: #312d40;
  --teal: #b0a1eb;
  --teal-dark: #c3b8f1;
  --teal-soft: #312d40;
  --lime: #2a382e;
  --navy: #f1f0e9;
  --sidebar: #191b18;
  --sidebar-text: #e7e5dc;
  --sidebar-muted: #a4a69d;
  --sidebar-hover: rgba(255, 255, 255, .06);
  --sidebar-active: rgba(255, 255, 255, .1);
  --mint: #2a382e;
  --success: #91cbaa;
  --success-bg: #20372a;
  --warning: #e4bd77;
  --warning-bg: #3a3020;
  --danger: #e4a39b;
  --danger-bg: #3c2927;
  --info: #a9c1df;
  --info-bg: #293542;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .18);
  --shadow-md: 0 8px 22px rgba(0, 0, 0, .2);
  --shadow-lg: 0 18px 44px rgba(0, 0, 0, .3);
}

html {
  min-width: 320px;
  scroll-behavior: auto;
  scrollbar-color: color-mix(in srgb, var(--brand) 35%, transparent) transparent;
}

body,
button,
input,
select,
textarea {
  font-family: Manrope, "IBM Plex Sans Arabic", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-feature-settings: "kern";
}

html:lang(ar) body,
body:lang(ar),
[dir="rtl"] {
  font-family: "IBM Plex Sans Arabic", Manrope, system-ui, sans-serif;
}

body {
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4 {
  color: var(--ink);
  letter-spacing: -.035em;
}

a {
  color: var(--brand);
  transition: color 140ms ease;
}

a:hover {
  color: var(--brand-hover);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--brand) 35%, transparent);
  outline-offset: 2px;
}

/* Primary workspace shell */
.app-frame {
  background: var(--paper);
  font-family: Manrope, "IBM Plex Sans Arabic", system-ui, -apple-system, "Segoe UI", sans-serif;
}

.app-sidebar {
  width: 264px;
  padding: 18px 14px 14px;
  background: var(--sidebar);
  color: var(--sidebar-text);
  border: 0;
  border-inline-end: 1px solid rgba(255, 255, 255, .07);
  box-shadow: none;
  transition: width 180ms var(--ease-out-strong), transform 220ms var(--ease-drawer);
}

.app-brand {
  min-height: 50px;
  padding: 0 4px 13px;
}

.app-brand .brand-symbol,
.marketing-brand .brand-symbol {
  border-radius: 11px;
  background: #7665bf;
  color: #fff;
  box-shadow: none;
}

.app-brand .brand-name b {
  color: #f5f2e9;
  font-size: 13px;
  letter-spacing: -.025em;
}

.app-brand .brand-name small {
  color: #aaa99e;
  letter-spacing: .16em;
}

.sidebar-collapse,
.mobile-menu {
  border-radius: 9px;
  background: transparent;
  color: var(--sidebar-muted);
}

.sidebar-collapse:hover {
  background: var(--sidebar-hover);
  color: #fff;
}

.sidebar-user {
  min-height: 58px;
  margin: 7px 0 14px;
  padding: 8px 2px;
  border: 0;
  border-block: 1px solid rgba(255, 255, 255, .1);
  border-radius: 0;
  background: transparent;
}

.user-avatar,
.top-avatar {
  border-radius: 10px;
  background: #e8e3f6;
  color: #59499e;
}

.sidebar-user-copy b {
  color: #f5f2e9;
  font-size: 11px;
}

.sidebar-user-copy small {
  color: #aaa99e;
}

.nav-group {
  margin-block-end: 13px;
}

.nav-group-label {
  margin: 10px 10px 6px;
  color: #9b9d94;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: none;
}

.nav-link {
  min-height: 38px;
  gap: 10px;
  padding: 7px 10px;
  border: 1px solid transparent;
  border-radius: 9px;
  color: #d0cfc6;
  font-size: 11px;
  transition: background-color 140ms ease, color 140ms ease, border-color 140ms ease;
}

.nav-link:hover {
  background: var(--sidebar-hover);
  color: #fff;
  transform: none;
}

.nav-link.active {
  border-color: rgba(255, 255, 255, .08);
  border-inline-start: 2px solid #b8aaf0;
  background: var(--sidebar-active);
  color: #fff;
  box-shadow: none;
}

.nav-link.active > svg {
  color: #c2b7f2;
}

.nav-counter {
  background: #c8b8e8;
  color: #2b243d;
}

.secure-chip {
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 10px;
  background: rgba(255, 255, 255, .035);
  color: #d7d5cb;
}

.secure-chip > svg {
  color: #b8aaf0;
}

.sidebar-version {
  color: #92948b;
}

.app-main {
  min-width: 0;
  background: var(--paper);
}

.app-topbar {
  min-height: 68px;
  height: auto;
  padding: 12px clamp(20px, 3vw, 42px);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: none;
  backdrop-filter: blur(14px);
}

.breadcrumbs {
  gap: 8px;
  color: var(--muted);
  font-size: 11px;
}

.breadcrumbs b {
  color: var(--ink);
  font-weight: 650;
}

.global-search {
  min-height: 36px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  color: var(--muted);
}

.global-search:hover,
.top-icon:hover,
.top-profile:hover {
  border-color: var(--line-strong);
  background: var(--surface-muted);
}

.global-search kbd,
.command-input kbd,
.command-hint kbd {
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface-muted);
  color: var(--muted);
}

.top-icon {
  width: 36px;
  height: 36px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--ink-soft);
}

.top-icon:hover {
  transform: none;
}

.top-profile {
  min-height: 38px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--ink-soft);
}

.logout-button {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
}

.logout-button:hover {
  border-color: color-mix(in srgb, var(--danger) 24%, var(--line));
  background: var(--danger-bg);
  color: var(--danger);
}

.app-content {
  width: min(1320px, 100%);
  margin-inline: auto;
  padding: 30px clamp(20px, 3vw, 42px) 44px;
}

.page-heading {
  min-height: 72px;
  align-items: center;
  margin: 0 0 24px;
  padding-block: 0 18px;
  border-bottom: 1px solid var(--line);
}

.page-kicker {
  color: var(--muted);
  font-size: 9px;
  font-weight: 650;
  letter-spacing: .1em;
}

.page-kicker > span {
  color: var(--brand);
}

.page-heading h1 {
  margin-block: 4px 0;
  color: var(--ink);
  font-size: clamp(22px, 2vw, 27px);
  font-weight: 700;
  letter-spacing: -.045em;
}

.app-footer {
  min-height: 48px;
  padding: 12px clamp(20px, 3vw, 42px);
  border-top: 1px solid var(--line);
  background: transparent;
  color: var(--subtle);
}

/* Dashboard and working surfaces */
.welcome-row {
  align-items: flex-end;
  margin-block-end: 18px;
}

.welcome-row h2 {
  margin-block: 3px 4px;
  font-size: clamp(22px, 2.2vw, 28px);
  letter-spacing: -.045em;
}

.welcome-row .muted,
.page-dashboard .muted {
  color: var(--muted);
}

.today-card {
  min-width: 145px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: none;
}

.today-card span {
  color: var(--muted);
  font-size: 10px;
}

.today-card strong {
  font-size: 12px;
  font-weight: 650;
}

.learning-route-banner {
  min-height: 98px;
  margin-block-end: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-inline-start: 3px solid var(--brand);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: none;
}

.route-mark {
  color: var(--brand);
}

.route-copy h3 {
  margin-block: 3px;
  font-size: 15px;
}

.stat-grid {
  gap: 12px;
  margin-block-end: 14px;
}

.stat-card,
.panel,
.course-card,
.exercise-card,
.submission-card,
.resource-card,
.sm-card,
.card-module {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.stat-card {
  min-height: 136px;
  padding: 16px;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

.stat-card:hover,
.panel:hover,
.course-card:hover,
.exercise-card:hover,
.resource-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
  transform: none;
}

.stat-icon {
  width: auto;
  height: auto;
  justify-content: start;
  margin-block-end: 12px;
  border-radius: 0;
  background: transparent !important;
  color: var(--brand);
}

.stat-card small {
  color: var(--muted);
  font-size: 10px;
}

.stat-card > strong {
  margin-block: 3px 7px;
  color: var(--ink);
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -.045em;
}

.stat-card::after {
  display: none !important;
}

.stat-card .stat-icon,
.stat-card .stat-icon.teal,
.stat-card .stat-icon.amber,
.stat-card .stat-icon.violet,
.stat-card .stat-icon.blue {
  border-radius: 8px;
  background: var(--brand-soft) !important;
  color: var(--brand) !important;
}

.text-link,
.stat-card a,
.inline-link {
  color: var(--brand) !important;
}

.date-tile {
  background: var(--brand-soft) !important;
  color: var(--brand) !important;
}

.dashboard-columns {
  gap: 14px;
  margin-block-end: 14px;
}

.panel {
  padding: 18px;
  margin-block-end: 14px;
}

.panel-head {
  margin-block-end: 14px;
}

.panel-head h3 {
  margin-block: 3px 0;
  font-size: 15px;
  font-weight: 700;
}

.panel-head .eyebrow,
.eyebrow {
  color: var(--muted);
  font-size: 9px;
  font-weight: 650;
  letter-spacing: .07em;
}

.list-row,
.notice-row {
  min-height: 58px;
  border-top: 1px solid var(--line);
  box-shadow: none !important;
  transition: background-color 140ms ease;
}

.list-row:hover,
.notice-row:hover {
  background: var(--surface-muted);
  transform: none;
}

.row-main strong,
.notice-row strong {
  color: var(--ink);
  font-size: 12px;
  font-weight: 650;
}

.row-main small,
.notice-row small {
  color: var(--muted);
}

.empty-state {
  padding: 34px 18px;
  color: var(--muted);
}

.empty-state > span {
  color: var(--brand);
}

.empty-state strong {
  color: var(--ink-soft);
}

.status-banner {
  border-radius: 11px;
  box-shadow: none;
}

/* Buttons, controls, states */
.primary-button,
.secondary-button,
.danger-button,
.ghost-button,
.sm-action-btn,
.button,
.button-primary,
.button-secondary,
.button-danger {
  min-height: 40px;
  gap: 8px;
  padding: 8px 13px;
  border-radius: 9px;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0;
  box-shadow: none;
  transition: color 140ms ease, background-color 140ms ease, border-color 140ms ease, box-shadow 140ms ease, transform var(--motion-press);
}

.primary-button,
.button-primary {
  border: 1px solid var(--brand);
  background: var(--brand) !important;
  background-image: none !important;
  color: #fff;
}

.primary-button:hover,
.button-primary:hover {
  border-color: var(--brand-hover);
  background: var(--brand-hover) !important;
  color: #fff;
  box-shadow: 0 4px 12px color-mix(in srgb, var(--brand) 18%, transparent);
  transform: none;
}

.secondary-button,
.button-secondary,
.ghost-button {
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink-soft);
}

.secondary-button:hover,
.button-secondary:hover,
.ghost-button:hover {
  border-color: color-mix(in srgb, var(--brand) 35%, var(--line-strong));
  background: var(--brand-soft);
  color: var(--brand-hover);
  transform: none;
}

.danger-button,
.button-danger {
  border: 1px solid color-mix(in srgb, var(--danger) 30%, var(--line));
  background: var(--danger-bg);
  color: var(--danger);
}

.danger-button:hover,
.button-danger:hover {
  border-color: color-mix(in srgb, var(--danger) 50%, var(--line));
  background: color-mix(in srgb, var(--danger) 14%, var(--surface));
  color: var(--danger);
  transform: none;
}

.button-small,
.primary-button.compact,
.secondary-button.compact {
  min-height: 32px;
  padding: 6px 10px;
  font-size: 10px;
}

.icon-button,
.top-icon,
.mobile-menu {
  transition: color 140ms ease, background-color 140ms ease, border-color 140ms ease, transform var(--motion-press);
}

button:active,
.primary-button:active,
.secondary-button:active,
.danger-button:active,
.ghost-button:active {
  transform: scale(.97);
}

.badge,
.path-badge,
.status-pill,
.tag,
.chip {
  min-height: 22px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 650;
}

.badge-blue,
.path-badge {
  background: var(--info-bg);
  color: var(--info);
}

.badge-green {
  background: var(--success-bg);
  color: var(--success);
}

.badge-amber {
  background: var(--warning-bg);
  color: var(--warning);
}

.badge-red {
  background: var(--danger-bg);
  color: var(--danger);
}

/* Forms and data surfaces */
.auth-form input,
.auth-form select,
.auth-form textarea,
.legacy-page input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
.legacy-page select,
.legacy-page textarea,
.form-grid input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
.form-grid select,
.form-grid textarea,
.stack-form input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
.stack-form select,
.stack-form textarea,
.admin-edit-form input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
.admin-edit-form select,
.admin-edit-form textarea,
.search-form input,
.inline-form select,
.group-picker select,
.chat-compose textarea {
  min-height: 42px;
  padding: 9px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--surface);
  color: var(--ink);
  font-size: 12px;
  box-shadow: none;
  transition: border-color 140ms ease, box-shadow 140ms ease, background-color 140ms ease;
}

.auth-form input:focus,
.auth-form select:focus,
.auth-form textarea:focus,
.legacy-page input:focus,
.legacy-page select:focus,
.legacy-page textarea:focus,
.form-grid input:focus,
.form-grid select:focus,
.form-grid textarea:focus,
.stack-form input:focus,
.stack-form select:focus,
.stack-form textarea:focus {
  border-color: var(--brand);
  background: var(--surface);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 13%, transparent);
}

.legacy-page label,
.form-grid label,
.stack-form label,
.auth-form label,
.admin-edit-form label {
  color: var(--ink-soft);
}

.legacy-page input[type="checkbox"],
.legacy-page input[type="radio"],
.form-grid input[type="checkbox"],
.form-grid input[type="radio"],
.stack-form input[type="checkbox"],
.auth-form input[type="checkbox"] {
  accent-color: var(--brand);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}

.legacy-page table {
  width: 100%;
  border-collapse: collapse;
  background: transparent;
}

.legacy-page thead th {
  padding: 11px 13px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-muted);
  color: var(--muted);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .035em;
  text-align: start;
  white-space: nowrap;
}

.legacy-page tbody td {
  padding: 11px 13px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 11px;
  vertical-align: middle;
}

.legacy-page tbody tr:last-child td {
  border-bottom: 0;
}

.legacy-page tbody tr:hover {
  background: var(--surface-muted);
}

.legacy-page .table-sub {
  color: var(--muted);
}

.legacy-page .resource-card,
.legacy-page .course-card,
.legacy-page .exercise-card,
.legacy-page .submission-card {
  padding: 15px;
}

.legacy-page .resource-icon,
.legacy-page .course-icon,
.legacy-page .level-mark {
  border-radius: 10px;
  box-shadow: none;
}

.legacy-page .viewer-shell,
.legacy-page .live-shell {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.legacy-page .viewer-head,
.legacy-page .viewer-toolbar {
  border-color: var(--line);
}

.legacy-page .announcement-card,
.legacy-page .notification-card {
  border-color: var(--line);
}

.legacy-page .notice,
.notice,
.auth-feedback {
  border-radius: 10px;
  box-shadow: none;
}

.legacy-page .instructions,
.legacy-page .answer-box,
.legacy-page .implementation-note,
.legacy-page .viewer-note {
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface-muted);
  color: var(--ink-soft);
}

.legacy-page .profile-heading,
.legacy-page .detail-grid {
  border-color: var(--line);
}

/* Auth, marketing and standalone legal pages */
.auth-wrap {
  background: var(--paper);
}

.auth-card,
.auth-panel {
  border-color: var(--line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow-md);
}

.auth-card h2,
.auth-heading h1 {
  color: var(--ink);
  letter-spacing: -.045em;
}

.auth-card p,
.auth-heading p {
  color: var(--muted);
}

.marketing-nav {
  border-color: var(--line);
}

.marketing-brand b {
  color: var(--ink);
}

.marketing-brand small {
  color: var(--muted);
}

.hero-copy h1,
.section-heading h2,
.city-copy h2,
.levels-title h2 {
  color: var(--ink);
  letter-spacing: -.055em;
}

.hero-copy h1 span,
.section-heading h2 span {
  color: var(--brand);
}

.hero-art::before {
  background: var(--lime);
}

.feature-card,
.level-step {
  border-color: var(--line);
  border-radius: 13px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.feature-icon {
  border-radius: 0;
  background: transparent !important;
  color: var(--brand);
}

.feature-card:hover,
.level-step:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
  transform: none;
}

.level-step.current {
  border-color: color-mix(in srgb, var(--brand) 38%, var(--line));
  background: var(--brand-soft);
}

.level-step.current .level-badge {
  background: var(--brand);
  color: #fff;
}

.final-cta {
  border-color: var(--line);
  background: var(--surface-muted);
}

.wrap {
  max-width: 860px;
  margin-block: 32px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.callout {
  border-color: color-mix(in srgb, var(--success) 30%, var(--line));
  border-radius: 10px;
  background: var(--success-bg);
}

.callout p {
  color: var(--ink-soft);
}

.box {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.box h1 {
  color: var(--ink);
  font-size: clamp(22px, 4vw, 30px);
  letter-spacing: -.045em;
}

.box label {
  color: var(--ink-soft);
  font-size: 12px;
}

.box input:not([type="hidden"]) {
  min-height: 42px;
  padding: 9px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--surface);
  color: var(--ink);
}

.box input:focus {
  border-color: var(--brand);
  outline: 3px solid color-mix(in srgb, var(--brand) 14%, transparent);
  outline-offset: 0;
}

.box button {
  min-height: 42px;
  margin-block-start: 14px;
  padding: 9px 14px;
  border: 1px solid var(--brand);
  border-radius: 9px;
  background: var(--brand);
  color: #fff;
  font-size: 12px;
  font-weight: 650;
  transition: background-color 140ms ease, border-color 140ms ease, transform var(--motion-press);
}

.box button:hover {
  border-color: var(--brand-hover);
  background: var(--brand-hover);
}

.box .secondary {
  border-color: var(--line-strong);
  background: var(--surface-muted);
  color: var(--ink-soft);
}

.box .msg {
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface-muted);
}

.box .hint {
  color: var(--muted);
  font-size: 13px;
}

.box .step {
  background: var(--brand-soft);
  color: var(--brand-hover);
}

/* Keep the custom real-time chat controls in the same product language. */
.legacy-page .chat-screen {
  --brand: var(--accent);
  --brand2: var(--accent-hover);
  --cyan: #889b86;
  --bg: var(--paper);
  --card: var(--surface);
  --soft: var(--surface-muted);
  --ink: var(--ink);
  --muted: var(--muted);
  --line: var(--line);
  --green: var(--success);
  border-color: var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.legacy-page .chat-screen-header,
.legacy-page .chat-composer-wrap {
  border-color: var(--line);
  background: var(--surface);
}

.legacy-page .chat-screen-avatar {
  background: var(--brand);
  box-shadow: none;
}

.legacy-page .chat-screen-body {
  background-color: var(--surface-muted);
  background-image: none;
}

.legacy-page .chat-bubble,
.legacy-page .chat-bubble.mine {
  border-color: var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: none;
}

.legacy-page .chat-bubble.mine {
  background: var(--brand-soft);
}

.legacy-page .composer-send {
  background: var(--brand);
  box-shadow: none;
}

/* Dark surfaces */
:root[data-theme="dark"] .app-topbar,
:root[data-theme="dark"] .today-card,
:root[data-theme="dark"] .global-search,
:root[data-theme="dark"] .top-icon,
:root[data-theme="dark"] .top-profile,
:root[data-theme="dark"] .panel,
:root[data-theme="dark"] .stat-card,
:root[data-theme="dark"] .course-card,
:root[data-theme="dark"] .exercise-card,
:root[data-theme="dark"] .submission-card,
:root[data-theme="dark"] .resource-card,
:root[data-theme="dark"] .table-wrap,
:root[data-theme="dark"] .legacy-page .viewer-shell,
:root[data-theme="dark"] .auth-card,
:root[data-theme="dark"] .auth-panel,
:root[data-theme="dark"] .card {
  background: var(--surface);
  color: var(--ink);
}

:root[data-theme="dark"] .legacy-page th,
:root[data-theme="dark"] .legacy-page .instructions,
:root[data-theme="dark"] .legacy-page .answer-box,
:root[data-theme="dark"] .legacy-page .implementation-note,
:root[data-theme="dark"] .legacy-page .viewer-toolbar,
:root[data-theme="dark"] .legacy-page .viewer-note,
:root[data-theme="dark"] .legacy-page .test-layout,
:root[data-theme="dark"] .legacy-page .chat-screen-body {
  background: var(--surface-muted);
  color: var(--ink-soft);
}

:root[data-theme="dark"] .legacy-page input,
:root[data-theme="dark"] .legacy-page select,
:root[data-theme="dark"] .legacy-page textarea,
:root[data-theme="dark"] .auth-form input,
:root[data-theme="dark"] .auth-form select,
:root[data-theme="dark"] .auth-form textarea {
  background: var(--surface-muted);
  color: var(--ink);
}

:root[data-theme="dark"] .auth-visual-overlay {
  background: linear-gradient(180deg, rgba(13, 15, 14, .2), rgba(13, 15, 14, .76));
}

:root[data-theme="dark"] .hero-art::before {
  background: #2b352c;
}

:root[data-theme="dark"] .final-cta {
  border-color: var(--line);
  background: var(--surface);
}

:root[data-theme="dark"] .callout {
  border-color: color-mix(in srgb, var(--success) 30%, var(--line));
  background: var(--success-bg);
}

/* Tablet and phone layouts */
@media (max-width: 980px) {
  .app-sidebar {
    width: 242px;
  }

  .app-frame.is-collapsed .app-sidebar {
    width: 70px;
  }

  .app-content {
    padding-inline: 24px;
  }
}

@media (max-width: 700px) {
  .app-frame {
    display: block;
  }

  .app-sidebar {
    width: min(300px, 86vw);
    max-width: 320px;
    height: 100dvh;
    position: fixed;
    inset-block: 0;
    inset-inline-start: 0;
    transform: translateX(-110%);
    box-shadow: var(--shadow-lg);
  }

  .app-frame.drawer-open .app-sidebar {
    transform: translateX(0);
  }

  .app-frame.is-collapsed .app-sidebar {
    width: min(300px, 86vw);
  }

  .app-frame.is-collapsed .app-brand {
    justify-content: flex-start;
    padding-inline: 5px;
  }

  .app-frame.is-collapsed .app-brand .brand-name,
  .app-frame.is-collapsed .app-brand .sidebar-collapse,
  .app-frame.is-collapsed .sidebar-user-copy,
  .app-frame.is-collapsed .sidebar-user > svg,
  .app-frame.is-collapsed .nav-group-label,
  .app-frame.is-collapsed .nav-link span,
  .app-frame.is-collapsed .nav-counter,
  .app-frame.is-collapsed .secure-chip span,
  .app-frame.is-collapsed .sidebar-version {
    display: initial;
  }

  .app-frame.is-collapsed .nav-link,
  .app-frame.is-collapsed .sidebar-user,
  .app-frame.is-collapsed .secure-chip {
    justify-content: flex-start;
  }

  .app-topbar {
    min-height: 62px;
    padding-inline: 14px;
  }

  .app-content {
    padding: 20px 16px 28px;
  }

  .page-heading {
    min-height: 58px;
    align-items: flex-start;
    gap: 10px;
    margin-block-end: 18px;
    padding-block-end: 14px;
  }

  .page-heading h1 {
    font-size: 21px;
  }

  .page-heading > .primary-button {
    min-height: 36px;
    padding: 7px 9px;
  }

  .global-search {
    display: none;
  }

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

  .today-card {
    width: 100%;
  }

  .learning-route-banner {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .learning-route-banner .route-action {
    width: calc(100% - 48px);
    margin-inline-start: 48px;
  }

  .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
  }

  .stat-card {
    min-height: 124px;
    padding: 13px;
  }

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

  .panel {
    padding: 15px;
  }

  .legacy-page .table-wrap {
    margin-inline: -2px;
  }

  .legacy-page table {
    min-width: 620px;
  }

  .legacy-page .form-grid,
  .legacy-page .inline-form {
    grid-template-columns: 1fr;
  }

  .legacy-page .span-two {
    grid-column: auto;
  }

  .wrap {
    margin: 16px auto;
    padding-inline: 14px;
  }

  .card {
    padding: 22px !important;
  }

  .legacy-page .chat-screen {
    width: calc(100% + 32px);
    margin-inline: -16px;
    border-inline: 0;
    border-radius: 0;
  }
}

@media (max-width: 480px) {
  .app-content {
    padding-inline: 12px;
  }

  .app-topbar {
    padding-inline: 11px;
  }

  .topbar-trailing {
    gap: 2px;
  }

  .top-profile > span:nth-child(2),
  .top-profile > svg,
  .top-separator {
    display: none;
  }

  .top-profile {
    padding: 0;
  }

  .app-footer {
    padding-inline: 12px;
  }

  .page-heading {
    align-items: center;
  }

  .page-heading h1 {
    font-size: 19px;
  }

  .page-heading > .primary-button {
    max-width: 48%;
    font-size: 10px;
  }

  .stat-grid {
    gap: 8px;
  }

  .stat-card {
    min-height: 116px;
  }

  .stat-card > strong {
    font-size: 22px;
  }

  .list-row {
    gap: 8px;
  }

  .row-actions,
  .actions-cell,
  .legacy-page .resource-actions,
  .legacy-page .class-actions {
    flex-wrap: wrap;
  }

  .legacy-page .panel {
    padding: 13px;
  }

  .legacy-page .viewer-head,
  .legacy-page .live-header {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* Management and course workflows: keep their data dense but easy to scan. */
.sm-header {
  margin-block-end: 18px;
}

.sm-header h2,
.sm-title {
  margin-block: 0 4px;
  color: var(--ink);
  font-size: clamp(21px, 2vw, 26px) !important;
  font-weight: 700;
  letter-spacing: -.045em;
}

.sm-subtitle {
  max-width: 680px;
  margin-block: 0;
  color: var(--muted);
  font-size: 12px;
}

.sm-stats {
  gap: 10px !important;
  margin-block-end: 15px;
}

.sm-stat {
  min-height: 96px;
  padding: 14px 15px !important;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.sm-stat-label {
  color: var(--muted);
  font-size: 10px;
}

.sm-stat-value {
  color: var(--ink);
  font-size: 22px;
  font-weight: 700;
}

.sm-toolbar {
  gap: 10px !important;
  margin-block-end: 12px;
}

.sm-search-wrap,
.sm-search {
  border-color: var(--line-strong) !important;
  border-radius: 9px !important;
  background: var(--surface) !important;
  color: var(--ink) !important;
}

.sm-filters,
.sm-select-bar {
  gap: 7px;
}

.sm-chip,
.sm-select-all,
.sm-selected-count,
.sm-mini-chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-soft);
}

.sm-chip.is-active {
  border-color: color-mix(in srgb, var(--brand) 32%, var(--line)) !important;
  background: var(--brand-soft) !important;
  color: var(--brand-hover) !important;
}

.sm-list-panel {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.sm-card {
  border: 0;
  border-block-end: 1px solid var(--line);
  border-radius: 0;
  background: var(--surface);
  box-shadow: none;
  transition: background-color 140ms ease;
}

.sm-card:last-child {
  border-block-end: 0;
}

.sm-card:hover {
  background: var(--surface-muted);
  box-shadow: none;
  transform: none;
}

.sm-card.is-selected {
  background: var(--brand-soft);
}

.sm-name {
  color: var(--ink);
  font-weight: 650;
}

.sm-meta,
.sm-footer-meta {
  color: var(--muted);
}

.sm-action-btn,
.sm-icon-btn,
.sm-assign-btn {
  border-radius: 8px;
  transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease, transform var(--motion-press);
}

.sm-action-btn {
  min-height: 34px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink-soft);
}

.sm-action-btn:hover {
  border-color: color-mix(in srgb, var(--brand) 35%, var(--line-strong));
  background: var(--brand-soft);
  color: var(--brand-hover);
}

.sm-action-danger:hover,
.danger-text:hover {
  border-color: color-mix(in srgb, var(--danger) 30%, var(--line));
  background: var(--danger-bg);
  color: var(--danger);
}

.sm-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}

.sm-table {
  width: 100%;
  border-collapse: collapse;
}

.sm-table th {
  padding: 11px 13px;
  border-block-end: 1px solid var(--line);
  background: var(--surface-muted);
  color: var(--muted);
  font-size: 9px;
  font-weight: 700;
  text-align: start;
}

.sm-table td {
  padding: 11px 13px;
  border-block-end: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 11px;
}

.sm-table tr:last-child td {
  border-block-end: 0;
}

.sm-table tr:hover {
  background: var(--surface-muted);
}

.admin-edit-drawer {
  border: 1px solid var(--line) !important;
  border-radius: 12px !important;
  background: var(--surface) !important;
  box-shadow: var(--shadow-md) !important;
}

.admin-edit-header h3 {
  font-size: 16px;
}

.path-picker,
.path-details,
.sm-assign-card {
  border: 1px solid var(--line) !important;
  border-radius: 11px !important;
  background: var(--surface) !important;
  box-shadow: var(--shadow-sm);
}

.path-card {
  border-color: var(--line);
  border-radius: 9px;
  background: var(--surface);
  transition: border-color 140ms ease, background-color 140ms ease;
}

.path-card:hover {
  border-color: color-mix(in srgb, var(--brand) 35%, var(--line));
  background: var(--surface-muted);
  transform: none;
}

.path-card.is-selected {
  border-color: color-mix(in srgb, var(--brand) 50%, var(--line));
  background: var(--brand-soft);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--brand) 10%, transparent);
}

.path-card-icon {
  border-radius: 8px;
  background: var(--brand-soft);
  color: var(--brand);
}

:root[data-theme="dark"] .sm-stat,
:root[data-theme="dark"] .sm-list-panel,
:root[data-theme="dark"] .sm-card,
:root[data-theme="dark"] .sm-table-wrap,
:root[data-theme="dark"] .sm-table,
:root[data-theme="dark"] .path-card,
:root[data-theme="dark"] .sm-search-wrap,
:root[data-theme="dark"] .sm-search {
  background: var(--surface);
  color: var(--ink);
}

:root[data-theme="dark"] .sm-card:hover,
:root[data-theme="dark"] .sm-table tr:hover,
:root[data-theme="dark"] .path-card:hover {
  background: var(--surface-muted);
}

@media (hover: hover) and (pointer: fine) {
  .primary-button:hover,
  .secondary-button:hover,
  .danger-button:hover,
  .ghost-button:hover,
  .button:hover {
    transform: translateY(-1px);
  }

  .primary-button:active,
  .secondary-button:active,
  .danger-button:active,
  .ghost-button:active,
  .button:active {
    transform: scale(.97);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}