:root {
  color-scheme: dark;
  --font-sans: "Manrope", "Inter", "Segoe UI", system-ui, sans-serif;
  --font-display: "Space Grotesk", "Manrope", system-ui, sans-serif;

  --bg: #030405;
  --bg-soft: #070809;
  --bg-elevated: #101112;
  --surface: #0d0f10;
  --surface-2: #121415;
  --surface-3: #1a1d1f;
  --surface-muted: #0c0d0e;
  --overlay: rgba(3, 4, 5, 0.62);

  --text: #f4f7fb;
  --txt: var(--text);
  --text-soft: #cfd3d8;
  --muted: #9299a2;
  --mut: var(--muted);
  --muted-2: #69717a;

  --brand: #55e69c;
  --brand-2: #10b981;
  --brand-soft: rgba(245, 248, 250, 0.045);
  --brand-line: rgba(85, 230, 156, 0.36);
  --accent: #b9a0ff;
  --accent-soft: rgba(185, 160, 255, 0.12);
  --danger: #ff6f7d;
  --danger-soft: rgba(255, 111, 125, 0.12);
  --warn: #f4b95e;
  --ok: #49d17d;
  --link: #cbbdff;
  --code: #eadfff;

  --line: rgba(190, 198, 207, 0.14);
  --line-strong: rgba(204, 211, 220, 0.25);
  --border: var(--line);
  --panel: var(--surface);
  --focus: rgba(185, 160, 255, 0.38);

  --radius-xs: 7px;
  --radius-sm: 9px;
  --radius-2xl: 24px;
  --radius-pill: 999px;

  --space-1: 4px;
  --space-2: 8px;
  --space-7: 32px;
  --space-8: 40px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 14px 30px rgba(0, 0, 0, 0.24);
  --shadow-lg: 0 28px 70px rgba(0, 0, 0, 0.34);
  --shadow-glow: 0 0 0 1px rgba(255, 255, 255, 0.04), 0 18px 44px rgba(0, 0, 0, 0.26);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-fast: 140ms var(--ease);
  --transition: 220ms var(--ease);

  --input-bg: rgba(255, 255, 255, 0.045);
  --chip: rgba(255, 255, 255, 0.06);
  --chipb: var(--line);
  --ring-track: rgba(255, 255, 255, 0.1);
  --progress-inner-1: #101213;
  --progress-inner-2: #161819;
}

.brainstorm-teacher-error { display: grid; justify-items: start; gap: 10px; }

.custom-select.is-multiple .custom-select-menu button { justify-content: space-between; }
.custom-select.is-multiple .custom-select-menu button > i { margin-inline-start: 12px; color: var(--muted); font-size: .78rem; }
.custom-select.is-multiple .custom-select-menu button.active > i { color: var(--page-color,var(--brand)); }

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f7f8fb;
  --bg-soft: #eef2f7;
  --bg-elevated: #ffffff;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --surface-3: #eef3f8;
  --surface-muted: #f3f6fb;
  --overlay: rgba(20, 32, 48, 0.34);

  --text: #111827;
  --text-soft: #334155;
  --muted: #64748b;
  --muted-2: #8794a8;

  --brand: #19a85d;
  --brand-2: #0b8249;
  --brand-soft: rgba(25, 168, 93, 0.1);
  --brand-line: rgba(25, 168, 93, 0.28);
  --accent: #496fe8;
  --accent-soft: rgba(73, 111, 232, 0.09);
  --danger: #d63d54;
  --danger-soft: rgba(214, 61, 84, 0.1);
  --warn: #b97817;
  --link: #2f57c8;
  --code: #1e3a70;

  --line: rgba(38, 55, 77, 0.13);
  --line-strong: rgba(38, 55, 77, 0.24);
  --focus: rgba(73, 111, 232, 0.32);
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 14px 34px rgba(32, 48, 77, 0.1);
  --shadow-lg: 0 28px 70px rgba(32, 48, 77, 0.16);
  --shadow-glow: 0 0 0 1px rgba(15, 23, 42, 0.04), 0 18px 44px rgba(32, 48, 77, 0.12);

  --input-bg: rgba(15, 23, 42, 0.035);
  --chip: rgba(15, 23, 42, 0.045);
  --ring-track: rgba(15, 23, 42, 0.11);
  --progress-inner-1: #ffffff;
  --progress-inner-2: #f3f7fb;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

html {
  background: var(--bg);
}

body {
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.48;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

button {
  cursor: pointer;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  color: var(--code);
}

img,
iframe,
audio {
  max-width: 100%;
}

.pronunciation-output,
.dict-word-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.pronunciation-input-row {
  display: flex;
  align-items: stretch;
  gap: 8px;
}

.pronunciation-input-row .input {
  flex: 1 1 auto;
  min-width: 0;
}

.pronunciation-input-row .pronunciation-button {
  flex: 0 0 auto;
}

.pronunciation-output > p {
  margin-block: 0;
}

.pronunciation-button {
  min-height: 34px;
  padding: 6px 10px;
  gap: 6px;
}

.pronunciation-button-compact {
  min-width: 34px;
  padding-inline: 8px;
}

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

.hidden {
  display: none !important;
}

.app-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(245, 248, 250, 0.024) 1px, transparent 1px),
    linear-gradient(180deg, rgba(245, 248, 250, 0.018) 1px, transparent 1px);
  mask-image: radial-gradient(circle at 50% 0%, rgba(0,0,0,0.72), transparent 70%);
}

.dashboard-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 12px;
  height: calc(100vh - 24px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 0px solid var(--line);
  z-index: 50;
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.logo-box {
  flex: 0 0 46px;
  display: grid;
  place-items: center;
  border: 1px solid var(--brand-line);
}

.logo-text {
  margin: 0;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1;
}

.logo-sub {
  margin: 4px 0 0;
  color: var(--muted);
}

.nav-section-title {
  padding: 14px 18px 7px;
  color: var(--muted-2);
  font-weight: 800;
  text-transform: uppercase;
}

.bottom-title {
  margin-top: auto;
}

#nav-list,
#nav-list-bottom,
#sidebar-subnav,
#nav-top {
  list-style: none;
}

#nav-list,
#nav-list-bottom,
#sidebar-subnav {
  display: grid;
  margin: 0;
  padding: 0 12px;
}

#nav-list li,
#nav-list-bottom li,
#sidebar-subnav li {
  display: flex;
  align-items: center;
  border: 1px solid transparent;
  transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  user-select: none;
}

#nav-list li i,
#nav-list-bottom li i,
#nav-list li .nav-page-icon,
#nav-list-bottom li .nav-page-icon {
  width: 28px;
  height: 28px;
  display: inline-grid;
  place-items: center;
  border: 0;
  border-radius: 0;
  text-align: center;
  opacity: 0.9;
}

#nav-list li:hover,
#nav-list-bottom li:hover,
#sidebar-subnav li:hover {
  color: var(--text);
  border-color: var(--line);
  transform: translateY(-1px);
}

#nav-list li.active i,
#nav-list-bottom li.active i,
#nav-list li.active .nav-page-icon,
#nav-list-bottom li.active .nav-page-icon {
  border-color: transparent;
  background: transparent;
}

#sidebar-subnav li {
  min-height: 34px;
  padding: 8px 11px 8px 38px;
  font-size: 0.82rem;
}

.main-wrapper {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
}

.topbar {
  position: sticky;
  z-index: 45;
  display: grid;
  gap: var(--space-4);
}

.topbar-left,
.topbar-right,
.page-actions,
.chip-row,
.word-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.topbar-right {
  justify-content: flex-end;
  flex-wrap: nowrap;
}

.top-locale-picker {
  position: relative;
  flex: 0 0 auto;
  width: 38px;
}

.top-locale-select {
  width: 38px;
  min-width: 38px;
  max-width: 38px;
  height: 38px;
  min-height: 38px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.015));
  appearance: none;
  -webkit-appearance: none;
  text-align: center;
  text-align-last: center;
  text-transform: lowercase;
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0;
  color: var(--page-color, var(--accent));
}

.top-locale-select:hover,
.top-locale-select:focus-visible {
  color: var(--page-color, var(--accent));
  border-color: color-mix(in srgb, var(--page-color, var(--accent)) 48%, var(--line));
  outline: 2px solid color-mix(in srgb, var(--page-color, var(--accent)) 22%, transparent);
  outline-offset: 1px;
}

.locale-picker-enhanced {
  position: relative;
  width: 38px;
  min-width: 38px;
  isolation: isolate;
}

.locale-picker-enhanced .locale-select-native {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}

.top-locale-button {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--page-color, var(--accent));
  background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.015));
  font-size: 0.74rem;
  font-weight: 900;
  line-height: 1;
  text-transform: lowercase;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.top-locale-button:hover,
.top-locale-button:focus-visible,
.locale-picker-enhanced.open .top-locale-button {
  border-color: color-mix(in srgb, var(--page-color, var(--accent)) 48%, var(--line));
  outline: 2px solid color-mix(in srgb, var(--page-color, var(--accent)) 22%, transparent);
  outline-offset: 1px;
}

.top-locale-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  z-index: 80;
  min-width: 58px;
  padding: 6px;
  border: 1px solid color-mix(in srgb, var(--logo-blue, var(--accent)) 38%, var(--line));
  border-radius: 12px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 94%, var(--logo-blue-soft, var(--accent-soft))), var(--surface-2));
  box-shadow: var(--shadow-md);
  transform: translate(-50%, -4px) scale(0.98);
  transform-origin: top center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.locale-picker-enhanced.open .top-locale-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0) scale(1);
}

.top-locale-menu button {
  width: 100%;
  min-height: 30px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 8px;
  color: var(--muted);
  background: transparent;
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: lowercase;
}

.top-locale-menu button:hover,
.top-locale-menu button.active {
  color: var(--logo-blue, var(--accent));
  background: color-mix(in srgb, var(--logo-blue-soft, var(--accent-soft)) 86%, transparent);
}

.page-actions {
  justify-content: flex-end;
}

.brand-title {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
}

.brand-sub {
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
}

.menu-toggle {
  display: inline-grid;
  place-items: center;
  color: var(--text);
}

.topbar-center {
  min-width: 0;
  display: flex;
}

#nav-top {
  align-items: center;
  margin: 0;
  overflow-x: auto;
  border-radius: var(--radius-pill);
  scrollbar-width: none;
}

#nav-top::-webkit-scrollbar {
  display: none;
}

#nav-top li {
  white-space: nowrap;
  border: 1px solid transparent;
  color: var(--muted);
  transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

#nav-top li:hover,
#nav-top li.active {
  color: var(--text);
}

.content-area {
  min-height: 0;
  overflow: auto;
}

.app-footer {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  font-size: .78rem;
}

.app-footer nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.app-footer a {
  padding: 5px 8px;
  border-radius: 8px;
  color: var(--text-soft);
  text-decoration: none;
  font-weight: 800;
}

.app-footer a:hover,
.app-footer a:focus-visible {
  color: var(--text);
  background: var(--chip);
}

body.landing-mode .app-footer {
  display: none;
}

@media(max-width:520px) {
  .app-footer {
    justify-content: center;
    padding-inline: 12px;
  }

  .app-footer > span {
    display: none;
  }
}

.page {
  width: min(100%, var(--content-max));
  margin: 0 auto;
  animation: page-in 260ms var(--ease);
}

@keyframes page-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-title {
  margin: 0;
  color: var(--text);
  font-family: var(--font-display);
  line-height: 1.08;
}

.page-subtitle {
  margin: 8px 0 22px;
  font-size: 1rem;
}

.page-header {
  display: flex;
  justify-content: space-between;
  margin: 2px 2px var(--space-5);
}

.page-header .page-subtitle {
  margin-bottom: 0;
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
}

.card-head.spacious {
  margin-bottom: var(--space-4);
}

.compact-head {
  margin-bottom: var(--space-3);
}

.h-title {
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

.h-sub {
  margin-top: 4px;
  font-size: 0.9rem;
}

.small {
  font-size: 0.86rem;
}

.danger {
  color: var(--danger);
}

.rule {
  width: 100%;
  margin: var(--space-4) 0;
  border: 0;
  border-top: 1px solid var(--line);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 8px;
  color: var(--brand);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 1px solid var(--chipb);
  border-radius: var(--radius-pill);
  background: var(--chip);
  font-weight: 700;
  white-space: nowrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  color: var(--text);
  background: var(--chip);
  font-size: 0.9rem;
  line-height: 1;
  text-decoration: none;
}

.btn:hover {
  border-color: var(--line-strong);
  background: color-mix(in srgb, var(--chip) 70%, var(--surface-3));
  text-decoration: none;
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
}

.btn.tiny {
  min-height: 30px;
  padding: 6px 10px;
  font-size: 0.78rem;
}

.input,
.select,
.textarea,
.file-input {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--text);
  background: var(--input-bg);
  padding: 10px 12px;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.textarea {
  resize: vertical;
}

.input::placeholder,
.textarea::placeholder {
  color: color-mix(in srgb, var(--muted) 78%, transparent);
}

.search-input-shell {
  position: relative;
  width: 100%;
}

.search-input-shell i {
  position: absolute;
  top: 50%;
  left: 14px;
  z-index: 1;
  color: color-mix(in srgb, var(--muted) 62%, transparent);
  font-size: 0.92rem;
  pointer-events: none;
  transform: translateY(-50%);
}

.search-input-shell .search-input {
  padding-left: 40px !important;
}

.search-input-shell .search-input::placeholder {
  color: color-mix(in srgb, var(--muted) 48%, transparent);
}

.search-input-shell:focus-within i {
  color: var(--page-color, var(--brand));
}

:root[dir="rtl"] .search-input-shell i {
  right: 14px;
  left: auto;
}

:root[dir="rtl"] .search-input-shell .search-input {
  padding-right: 40px !important;
  padding-left: 12px !important;
}

.input:focus,
.select:focus,
.textarea:focus,
.file-input:focus,
.input:focus-visible,
.select:focus-visible,
.textarea:focus-visible,
.file-input:focus-visible,
.btn:focus-visible,
.menu-toggle:focus-visible,
#nav-list li:focus-visible,
#nav-list-bottom li:focus-visible,
#sidebar-subnav li:focus-visible,
#nav-top li:focus-visible,
.study-flip:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--focus);
  outline: none;
}

.field {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  color: var(--muted);
  font-weight: 800;
}

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

.field.field-action {
  justify-content: flex-end;
}

.field.field-action .btn,
.search-btn-wrap .btn {
  width: 100%;
}

.field-grid,
.save-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  align-items: end;
}

.field-grid {
  grid-template-columns: minmax(0, 2fr) minmax(120px, 0.65fr) minmax(120px, 0.6fr);
}

.empty-state {
  display: grid;
  place-items: center;
  gap: var(--space-3);
  padding: var(--space-6);
  text-align: center;
}

.empty-state.compact {
  display: flex;
  place-items: initial;
  align-items: flex-start;
  text-align: left;
  padding: var(--space-4);
}

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

.placeholder {
  padding: var(--space-4);
  background: var(--surface-muted);
}

.spinner {
  width: 16px;
  height: 16px;
  display: inline-block;
  border: 2px solid var(--line-strong);
  border-top-color: var(--brand);
  border-radius: 50%;
  animation: spin 900ms linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.progress-ring {
  width: 112px;
  height: 112px;
  display: grid;
  place-items: center;
  border-radius: 50%;
}

.progress-ring-inner {
  width: calc(100% - 18px);
  height: calc(100% - 18px);
  display: grid;
  place-items: center;
  align-content: center;
  gap: 2px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--progress-inner-1), var(--progress-inner-2));
  text-align: center;
}

.progress-ring-inner strong {
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.7rem;
}

.progress-ring-inner span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.alert-card {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding: var(--space-4);
  border-color: color-mix(in srgb, var(--danger) 40%, var(--line));
  background: var(--danger-soft);
}

.quick-action i {
  flex: 0 0 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--brand-line);
}

.premium-card,
.action-panel,
.stats-card {
  box-shadow: var(--shadow-sm);
}

.action-grid,
.reward-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.quick-action {
  display: flex;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  color: var(--text);
  text-align: left;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.quick-action:hover {
  transform: translateY(-1px);
}

.quick-action span {
  display: grid;
  gap: 2px;
}

.quick-action small {
  color: var(--muted);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: var(--space-2);
}

.cal-cell {
  min-height: 72px;
  display: grid;
  place-items: center;
  gap: 4px;
  padding: 8px 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-muted);
  text-align: center;
}

.cal-dot {
  background: var(--muted-2);
}

/* Keep day labels on one line in the Home streak calendar. */
.premium-calendar .cal-cell {
  min-height: 58px;
  padding: 8px 4px;
}

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

.activity-dot {
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--brand);
}

.danger-dot {
  background: var(--danger);
}

.reward-grid > div {
  display: grid;
  gap: 3px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-muted);
}

.reward-grid b {
  font-family: var(--font-display);
}

.reward-grid span {
  color: var(--muted);
  font-size: 0.82rem;
}

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

.reward-summary-grid img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.reward-summary-icon {
  width: 28px;
  height: 28px;
  display: inline-grid;
  place-items: center;
  font-size: 1.35rem;
}

.reward-summary-icon.coin {
  color: #ffcf5a;
}

@media (max-width: 520px) {
  .reward-summary-grid {
    grid-template-columns: 1fr;
  }
}

.dictionary-layout {
  display: grid;
  align-items: start;
}

.dictionary-layout {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.2fr);
}

.expander {
  margin-top: var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-muted);
  overflow: hidden;
}

.expander-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border: 0;
  color: var(--text);
  background: transparent;
  text-align: left;
  font-weight: 800;
}

.expander-body {
  display: none;
  padding: 0 var(--space-4) var(--space-4);
}

.expander.open .expander-body {
  display: grid;
  gap: var(--space-3);
}

.expander-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  align-items: end;
}

.chip-link:hover {
  text-decoration: none;
}

.dict-word {
  color: var(--text);
  font-family: var(--font-display);
}

.source-tag {
  display: inline-flex;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--muted);
  background: var(--chip);
  font-size: 0.75rem;
  font-weight: 800;
}

.dict-pos {
  margin-top: var(--space-3);
  letter-spacing: 0.08em;
}

.def-list {
  margin: 8px 0 0;
  padding-left: 0;
  list-style: none;
}

.def-list li {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--line);
}

.dict-definition-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.dict-definition-row > div {
  min-width: 0;
}

.dict-definition-row .btn {
  flex: 0 0 auto;
}

.quote {
  margin-top: 6px;
  color: var(--muted);
}

.study-flip {
  min-height: 330px;
  perspective: 1200px;
  outline: none;
}

.study-flip-inner {
  position: relative;
  min-height: 330px;
  transition: transform 460ms var(--ease);
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.study-flip.is-flipped .study-flip-inner {
  transform: rotateY(180deg);
}

.study-face {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: space-between;
  gap: var(--space-5);
  padding: var(--space-6);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  overflow: hidden;
}

.study-back {
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
}

.study-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.study-front-text,
.study-back-text {
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3.5rem);
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.study-back-text {
  font-size: clamp(1.25rem, 2vw, 2rem);
  white-space: normal;
}

.card-extra {
  display: grid;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-muted);
}

.text-lines {
  white-space: pre-line;
}

.rev-quiz-opt.is-correct {
  border-color: var(--brand-line);
  background: var(--brand-soft);
}

.rev-quiz-opt.is-wrong {
  border-color: color-mix(in srgb, var(--danger) 42%, var(--line));
  background: var(--danger-soft);
}

.cards-list-item {
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.cards-list-item:hover {
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.cards-list-main b {
  overflow-wrap: anywhere;
}

.sidebar-status-card {
  border: 1px solid var(--line);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.sidebar-status-card:hover,
.sidebar-status-card:focus-visible {
  border-color: color-mix(in srgb, var(--brand) 54%, var(--line));
  transform: translateY(-1px);
  outline: none;
}

.status-label {
  color: var(--brand);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.status-title {
  margin-top: 4px;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
}

.status-meter {
  height: 7px;
  overflow: hidden;
  margin: 12px 0 8px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
}

.status-meter span {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  transition: width var(--transition);
}

.status-copy {
  color: var(--muted);
  font-size: 0.8rem;
}

.workspace-label {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.workspace-label i {
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  color: var(--brand);
  background: var(--brand-soft);
}

.page-actions {
  border: 1px solid var(--line);
}

.input-hero {
  min-height: 54px;
  font-size: 1.08rem;
}

.search-workspace {
  grid-template-columns: minmax(380px, 0.95fr) minmax(460px, 1.05fr);
}

.lookup-card,
.result-card,
.collection-list-panel,
.inspector-panel,
.study-stage,
.queue-panel {
  position: relative;
  overflow: hidden;
}

.lookup-card::after,
.result-card::after,
.study-stage::after,
.inspector-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(520px 180px at 16% 0%, rgba(245,248,250,0.018), transparent 62%);
}

.lookup-card > *,
.result-card > *,
.study-stage > *,
.inspector-panel > * {
  position: relative;
  z-index: 1;
}

.skeleton-panel {
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-xl);
  background: var(--surface-muted);
}

.error-state {
  border-color: color-mix(in srgb, var(--danger) 42%, var(--line));
  background: var(--danger-soft);
}

.linear-progress {
  height: 9px;
  overflow: hidden;
  margin-top: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
}

.linear-progress span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brand), var(--accent));
}

.queue-panel {
  overflow: auto;
}

.queue-panel details + details {
  margin-top: 10px;
}

.studio-toolbar {
  margin-bottom: var(--space-4);
  background:
    linear-gradient(135deg, rgba(255,255,255,0.026), color-mix(in srgb, var(--accent-soft) 34%, transparent)),
    var(--surface);
}

.collection-list-panel .placeholder,
.queue-panel .placeholder {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.012)),
    var(--surface-muted);
}

.inspector-panel {
  background:
    radial-gradient(520px 220px at 100% 0%, color-mix(in srgb, var(--accent-soft) 72%, transparent), transparent 66%),
    var(--surface);
}

.queue-panel details {
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.queue-panel details[open] {
  border-color: var(--line-strong);
  background: rgba(255,255,255,0.045);
}

details {
  border: 1px solid var(--line);
  background: var(--surface-muted);
}

summary {
  color: var(--text);
  font-weight: 800;
  cursor: pointer;
}

.toast-stack {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 100;
  width: min(390px, calc(100vw - 28px));
  display: grid;
  gap: var(--space-2);
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: var(--space-3);
  align-items: start;
  padding: var(--space-3);
  border: 1px solid var(--line-strong);
  color: var(--text);
  animation: toast-in 180ms var(--ease);
}

.toast.is-leaving {
  animation: toast-out 180ms var(--ease) forwards;
}

.toast-dot {
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.toast-success .toast-dot {
  background: var(--ok);
}

.toast-error .toast-dot {
  background: var(--danger);
}

.toast-body {
  overflow-wrap: anywhere;
  font-size: 0.92rem;
}

.toast-close {
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: var(--radius-sm);
  color: var(--muted);
  background: transparent;
}

.toast-close:hover {
  color: var(--text);
  background: var(--chip);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes toast-out {
  to { opacity: 0; transform: translateY(8px); }
}

@media (max-width: 930px) {
.dashboard-layout {
    grid-template-columns: minmax(0, 1fr);
  }

.sidebar {
    position: fixed;
    width: min(var(--sidebar-width), calc(100vw - 40px));
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }

body:not(.sidebar-collapsed)::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 40;
    background: var(--overlay);
  }

.topbar {
    padding: 10px 12px;
  }

.topbar-center {
    display: none !important;
  }

.topbar-right {
    overflow-x: auto;
  }

}

@media (max-width: 760px) {
.card,
.placeholder {
    border-radius: var(--radius-lg);
    padding: var(--space-4);
  }

.page-header {
    display: grid;
  }

.action-grid,
.expander-grid,
.field-grid,
.reward-grid,
.save-grid {
    grid-template-columns: 1fr;
  }

.topbar-right .chip:not(.app-loading-chip) {
    display: none;
  }

.study-flip,
.study-flip-inner {
    min-height: 280px;
  }

.study-face {
    padding: var(--space-4);
  }

.calendar-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

.toast-stack {
    right: 12px;
    bottom: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
*,
*::before,
*::after {
    animation: none !important;
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

.dashboard-layout {
  padding: 14px;
}

.sidebar {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 96%, transparent), color-mix(in srgb, var(--surface-muted) 96%, transparent));
  box-shadow: var(--shadow-md);
}

.sidebar-header {
  background: transparent;
}

.sidebar-nav {
  overflow-y: auto;
  padding-bottom: 14px;
}

.topbar-center { justify-content: flex-start; }

.card,
.empty-state,
.placeholder,
.alert-card,
.page-hero {
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.card {
  padding: 20px;
}

.dictionary-layout {
  gap: 16px;
}

.input,
.select,
.textarea,
.file-input,
.btn,
.chip {
  box-shadow: none;
}

body.desktop-sidebar-collapsed .dashboard-layout {
  grid-template-columns: minmax(0, 1fr);
}

body.desktop-sidebar-collapsed .topbar {
  max-width: none;
}

@media (max-width: 1180px) {

.topbar-right {
    justify-content: flex-end;
  }
}

@media (max-width: 930px) {
.dashboard-layout {
    padding: 10px;
  }

.main-wrapper {
    min-height: calc(100vh - 20px);
  }

.topbar-left {
    min-width: 0;
  }
}

.dashboard-layout.orbit-layout {
  max-width: none;
  align-items: stretch;
}

.sidebar.context-rail {
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  backdrop-filter: blur(16px);
}

.logo-box {
  box-shadow: 0 10px 25px color-mix(in srgb, var(--brand) 18%, transparent);
}

.logo-text,
.brand-title,
.page-title {
  letter-spacing: -0.045em;
}

#nav-list li,
#nav-list-bottom li,
#sidebar-subnav li {
  position: relative;
  font-weight: 800;
  letter-spacing: -0.01em;
}

#nav-list li.active::before,
#nav-list-bottom li.active::before,
#sidebar-subnav li.active::before {
  content: '';
  position: absolute;
  left: 8px;
  width: 4px;
  height: 20px;
  border-radius: 999px;
}

.page {
  display: grid;
}

.card,
.alert-card,
.empty-state,
.placeholder,
.page-hero {
  border-radius: var(--radius-xl);
  border: 1px solid color-mix(in srgb, var(--line) 86%, transparent);
  background: color-mix(in srgb, var(--surface) 97%, transparent);
}

.card:hover {
  border-color: color-mix(in srgb, var(--brand-line) 72%, var(--line));
}

.btn {
  min-height: 42px;
  font-weight: 850;
}

.cal-cell.streak-cell {
  display: flex;
  flex-direction: column;
}

.cal-top {
  gap: 8px;
}

.cal-dot.active {
  box-shadow: none;
}

.cal-dot.inactive {
  background: color-mix(in srgb, var(--muted) 18%, transparent);
}

.cal-state {
  font-weight: 850;
  color: var(--muted);
}

.streak-cell.is-streak-on .cal-state,
.streak-cell.is-current .cal-state {
  color: var(--brand);
}

.quick-action,
.cards-list-item {
  border-radius: 16px;
}

.quick-action {
  background: color-mix(in srgb, var(--surface-muted) 78%, transparent);
}

.small,
.card p,
.empty-state p {
  line-height: 1.65;
}

@media (max-width: 760px) {
.calendar-grid.premium-calendar {
    grid-template-columns: 1fr;
  }

.cal-cell.streak-cell {
    min-height: 70px;
  }
}

.collection-list-panel,
.inspector-panel { padding: 20px !important; border-radius: 24px !important; }

.collection-list-panel .cards-list { padding-right: 4px; }

.cards-list-item { display: grid !important; align-items: center !important; border: 1px solid var(--line) !important; background: color-mix(in srgb, var(--surface-muted) 78%, transparent) !important; }

.cards-list-main { display: grid; min-width: 0; }

.cards-list-main b { display: block; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.cards-list-main .small { margin: 0; line-height: 1.45; }

.upload-strip { display: grid; }

.file-drop { display: flex; align-items: center; border: 1px dashed var(--line-strong); background: color-mix(in srgb, var(--surface-muted) 82%, transparent); cursor: pointer; transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast); }

.file-drop:hover { border-color: var(--brand-line); background: var(--brand-soft); transform: translateY(-1px); }

.file-drop i { display: grid; place-items: center; color: var(--brand); background: var(--brand-soft); }

.file-drop span { display: grid; gap: 2px; }

.file-drop b { color: var(--text); }

.file-drop small { color: var(--muted); }

.file-drop.has-file {
  border-color: var(--brand-line);
  background: var(--brand-soft);
}

.file-drop.has-file span { min-width: 0; }

.file-drop.has-file b {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-drop.has-file small { color: var(--brand); }

.file-drop .file-input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

.file-input::file-selector-button { border: 0; border-radius: 12px; padding: 8px 12px; margin-right: 12px; color: #06140d; background: var(--brand); font-weight: 850; }

.premium-calendar { grid-template-columns: repeat(7, minmax(54px, 1fr)) !important; gap: 10px !important; }

.cal-cell.streak-cell { text-align: center !important; align-items: center !important; }

.cal-top { width: 100%; display: flex !important; justify-content: center !important; align-items: center !important; white-space: nowrap !important; }

.cal-label { color: var(--text-soft); font-weight: 900; }

.cal-dot { border-radius: 999px !important; }

@media (max-width: 980px) {
.upload-strip { grid-template-columns: 1fr !important; }

}

:root {
  --content-max: 1240px !important;
  --radius-xl: 18px !important;
  --radius-lg: 14px !important;
  --radius-md: 10px !important;
  --space-3: 10px !important;
  --space-4: 12px !important;
  --space-5: 16px !important;
  --space-6: 18px !important;
}

html { font-size: 14px; }

body { overflow-x: hidden; }

.dashboard-layout.orbit-layout,
.dashboard-layout {
  align-items: stretch;
}

.main-wrapper {
  min-width: 0;
}

.sidebar {
  width: var(--sidebar-width) !important;
  min-width: 0;
  border-radius: 18px !important;
}

.sidebar-header { padding: 14px 12px 10px !important; }

.logo-sub { font-size: .72rem !important; }

#nav-list,
#nav-list-bottom,
#sidebar-subnav { padding-inline: 8px !important; }

#nav-list li.active,
#nav-list-bottom li.active,
#sidebar-subnav li.active { padding-left: 16px !important; }

.sidebar-status-card { margin: 10px 8px 0 !important; padding: 10px !important; border-radius: 14px !important; }

.topbar {
  padding: 8px 10px !important;
}

.topbar-right { gap: 6px !important; }

.chip { min-height: 32px !important; padding: 6px 10px !important; font-size: .82rem !important; }

.content-area {
  width: 100% !important;
  max-width: var(--content-max) !important;
  margin-inline: auto !important;
}

.page { gap: 12px !important; }

.page-header { margin-bottom: 12px !important; gap: 8px !important; }

.page-title { font-size: clamp(1.55rem, 2.2vw, 2.3rem) !important; }

.workspace-label,
.status-label { font-size: .66rem !important; letter-spacing: .1em !important; }

.h-title { font-size: 1.02rem !important; }

.h-sub,
.small,
.card p,
.empty-state p { font-size: .86rem !important; line-height: 1.5 !important; }

.card,
.alert-card,
.empty-state,
.placeholder,
.page-hero,
.collection-list-panel,
.inspector-panel {
  padding: 14px !important;
  border-radius: 18px !important;
}

.workspace-label {
  margin-bottom: 10px !important;
  gap: 6px !important;
}

.btn,
.input,
.select,
.textarea,
.file-input {
  min-height: 36px !important;
  padding: 8px 11px !important;
  border-radius: 11px !important;
  font-size: .9rem !important;
}

.textarea { min-height: 92px !important; }

.field label { margin-bottom: 5px !important; font-size: .72rem !important; }

.save-grid,
.field-grid,
.expander-grid { gap: 10px !important; }

.chip-row { gap: 7px !important; }

.quick-action i { width: 34px !important; height: 34px !important; flex-basis: 34px !important; }

.action-grid,
.reward-grid { gap: 10px !important; }

.quick-action { padding: 12px !important; gap: 10px !important; }

.reward-grid > div { padding: 10px !important; }

.reward-grid b { font-size: 1.25rem !important; }

.calendar-grid.premium-calendar,
.premium-calendar {
  grid-template-columns: repeat(7, minmax(0, 1fr)) !important;
  gap: 7px !important;
}

.cal-cell.streak-cell {
  min-height: 64px !important;
  padding: 8px 6px !important;
  border-radius: 13px !important;
  justify-content: center !important;
  gap: 7px !important;
}

.cal-top { min-width: 0; }

.cal-label {
  display: inline !important;
  white-space: nowrap !important;
  font-size: .72rem !important;
  line-height: 1 !important;
}

.cal-dot { width: 26px !important; height: 8px !important; margin: 0 auto !important; }

.cal-state { font-size: .68rem !important; line-height: 1 !important; }

.collection-list-panel,
.inspector-panel { width: 100%; }

.collection-list-panel .cards-list {
  max-height: calc(100vh - 232px) !important;
  overflow: auto !important;
  display: grid;
  gap: 8px !important;
}

.cards-list-item {
  min-height: 82px !important;
  padding: 11px 12px !important;
  gap: 10px !important;
  border-radius: 14px !important;
  grid-template-columns: minmax(0, 1fr) auto !important;
}

.cards-list-main { gap: 3px !important; }

.cards-list-main b { font-size: .95rem !important; line-height: 1.15 !important; }

.card-extra { margin-top: 10px !important; padding: 12px !important; gap: 8px !important; }

.upload-strip {
  grid-template-columns: minmax(0, 1fr) 132px !important;
  gap: 10px !important;
  align-items: stretch !important;
}

.file-drop {
  min-height: 54px !important;
  padding: 10px 12px !important;
  border-radius: 14px !important;
  gap: 10px !important;
}

.file-drop i { width: 34px !important; height: 34px !important; border-radius: 11px !important; }

.file-drop b { font-size: .9rem !important; }

.file-drop small { font-size: .76rem !important; }

.dictionary-layout,
.search-workspace { gap: 12px !important; }

.study-stage .study-flip,
.study-stage .study-flip-inner { min-height: 330px !important; }

.study-stage .study-face { padding: 22px !important; }

.queue-panel { max-height: calc(100vh - 142px) !important; }

details { padding: 10px !important; border-radius: 14px !important; }

@media (max-width: 1180px) {
:root { --content-max: 100% !important; }

.dictionary-layout,
.search-workspace { grid-template-columns: 1fr !important; }

.collection-list-panel .cards-list { max-height: 420px !important; }

}

@media (max-width: 760px) {
html { font-size: 13.5px; }

.dashboard-layout { padding: 8px !important; }

.content-area { padding: 10px 0 16px !important; }

.topbar { grid-template-columns: auto minmax(0, 1fr) !important; }

.topbar-left { min-width: 0 !important; }

.action-grid,
.reward-grid,
.upload-strip,
.calendar-grid.premium-calendar { grid-template-columns: 1fr !important; }

.cards-list-item { grid-template-columns: 1fr !important; }

}

:root {
  --tone-emerald: #34d399;
  --tone-emerald-soft: rgba(52, 211, 153, 0.14);
  --tone-challenge: #90c050;
  --tone-challenge-soft: rgba(245, 248, 250, 0.045);
  --tone-sky: #38bdf8;
  --tone-sky-soft: rgba(56, 189, 248, 0.14);
  --tone-violet: #a78bfa;
  --tone-violet-soft: rgba(167, 139, 250, 0.15);
  --tone-amber: #fbbf24;
  --tone-amber-soft: rgba(251, 191, 36, 0.15);
  --tone-rose: #fb7185;
  --tone-rose-soft: rgba(251, 113, 133, 0.14);
  --tone-cyan: #22d3ee;
  --tone-cyan-soft: rgba(34, 211, 238, 0.13);
  --tone-orange: #fb923c;
  --tone-orange-soft: rgba(251, 146, 60, 0.14);
  --tone-coral: #fb6f61;
  --tone-coral-soft: rgba(251, 111, 97, 0.14);
  --tone-indigo: #818cf8;
  --tone-indigo-soft: rgba(129, 140, 248, 0.14);
  --tone-lime: #a3e635;
  --tone-lime-soft: rgba(163, 230, 53, 0.13);
}

:root[data-theme="light"] {
  --tone-emerald: #059669;
  --tone-emerald-soft: rgba(5, 150, 105, 0.1);
  --tone-challenge: #6f9f32;
  --tone-challenge-soft: rgba(111, 159, 50, 0.11);
  --tone-sky: #0284c7;
  --tone-sky-soft: rgba(2, 132, 199, 0.1);
  --tone-violet: #7c3aed;
  --tone-violet-soft: rgba(124, 58, 237, 0.1);
  --tone-amber: #b45309;
  --tone-amber-soft: rgba(180, 83, 9, 0.11);
  --tone-rose: #e11d48;
  --tone-rose-soft: rgba(225, 29, 72, 0.1);
  --tone-cyan: #0891b2;
  --tone-cyan-soft: rgba(8, 145, 178, 0.1);
  --tone-orange: #ea580c;
  --tone-orange-soft: rgba(234, 88, 12, 0.1);
  --tone-coral: #dc2626;
  --tone-coral-soft: rgba(220, 38, 38, 0.1);
  --tone-indigo: #4f46e5;
  --tone-indigo-soft: rgba(79, 70, 229, 0.1);
  --tone-lime: #65a30d;
  --tone-lime-soft: rgba(101, 163, 13, 0.1);
}

.logo-box {
  color: #06130c !important;
  border-color: color-mix(in srgb, var(--tone-emerald) 55%, var(--line)) !important;
  background:
    linear-gradient(135deg, var(--tone-emerald), var(--tone-cyan) 54%, var(--tone-violet)) !important;
}

.logo-box i {
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.18));
}

#nav-list li,
#nav-list-bottom li {
  --item-color: var(--brand);
  --item-soft: var(--brand-soft);
}

#nav-list li:nth-child(1) { --item-color: var(--tone-sky); --item-soft: var(--tone-sky-soft); }

#nav-list li:nth-child(2) { --item-color: var(--tone-emerald); --item-soft: var(--tone-emerald-soft); }

#nav-list li:nth-child(3) { --item-color: var(--tone-violet); --item-soft: var(--tone-violet-soft); }

#nav-list li:nth-child(4) { --item-color: var(--tone-orange); --item-soft: var(--tone-orange-soft); }

#nav-list li:nth-child(5) { --item-color: var(--tone-amber); --item-soft: var(--tone-amber-soft); }

#nav-list li:nth-child(6) { --item-color: var(--tone-rose); --item-soft: var(--tone-rose-soft); }

#nav-list li:nth-child(7) { --item-color: var(--tone-challenge); --item-soft: var(--tone-challenge-soft); }

#nav-list li:nth-child(8) { --item-color: var(--tone-indigo); --item-soft: var(--tone-indigo-soft); }

#nav-list li:nth-child(9) { --item-color: var(--tone-cyan); --item-soft: var(--tone-cyan-soft); }

#nav-list li i,
#nav-list-bottom li i,
#nav-list li .nav-page-icon,
#nav-list-bottom li .nav-page-icon {
  color: var(--item-color) !important;
  border-color: color-mix(in srgb, var(--item-color) 28%, var(--line)) !important;
  background: var(--item-soft) !important;
}

#nav-list li.active,
#nav-list-bottom li.active {
  border-color: color-mix(in srgb, var(--item-color) 58%, var(--line)) !important;
  background:
    linear-gradient(90deg, var(--item-soft), color-mix(in srgb, var(--item-soft) 58%, transparent)) !important;
}

#nav-list li.active::before,
#nav-list-bottom li.active::before {
  background: var(--item-color) !important;
}

#sidebar-subnav li.active {
  border-color: color-mix(in srgb, var(--item-color) 50%, var(--line)) !important;
  background: var(--item-soft) !important;
}

#sidebar-subnav li.active::before {
  background: var(--item-color) !important;
}

.topbar-right > .chip:nth-of-type(1) {
  border-color: color-mix(in srgb, var(--tone-amber) 38%, var(--line));
  background: var(--tone-amber-soft);
}

.topbar-right > .chip:nth-of-type(2) {
  border-color: color-mix(in srgb, var(--tone-violet) 38%, var(--line));
  background: var(--tone-violet-soft);
}

.topbar-right > .chip:nth-of-type(3) {
  border-color: color-mix(in srgb, var(--tone-rose) 38%, var(--line));
  background: var(--tone-rose-soft);
}

.top-theme-toggle i {
  color: var(--tone-amber);
}

.page-title {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.page-title-icon {
  display: inline-grid;
  place-items: center;
  flex: 0 0 40px;
  border: 0;
  color: inherit;
  background: transparent;
  font-size: 0.92rem;
}

.page-title-icon img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  display: block;
}

.nav-page-icon {
  width: 28px;
  height: 28px;
  padding: 0;
  object-fit: contain;
  display: block;
  flex: 0 0 28px;
}

.page-actions {
  border-color: color-mix(in srgb, var(--page-color, var(--brand)) 24%, var(--line)) !important;
  background:
    linear-gradient(135deg, var(--page-soft, var(--brand-soft)), transparent 72%) !important;
}

.workspace-label i,
.empty-state i,
.file-drop i {
  color: var(--page-color, var(--brand)) !important;
  border-color: color-mix(in srgb, var(--page-color, var(--brand)) 42%, var(--line)) !important;
  background: var(--page-soft, var(--brand-soft)) !important;
}

.feature-section-title,
.feature-workspace-label,
.feature-inline-label,
.btn-feature {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.feature-section-title {
  min-height: 34px;
  margin-bottom: 4px;
}

.feature-section-title.section-title-spaced {
  margin-top: 10px;
}

.feature-section-title + .small {
  margin-top: 0;
}

.feature-icon {
  width: 48px;
  height: 48px;
  flex: 0 0 48px;
  object-fit: contain;
}

.feature-workspace-label .feature-icon {
  width: 60px;
  height: 60px;
  flex-basis: 60px;
}

.feature-inline-label .feature-icon,
.btn-feature .feature-icon {
  width: 34px;
  height: 34px;
  flex-basis: 34px;
}

.card,
.alert-card,
.empty-state,
.placeholder {
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.quick-action:nth-child(1) { --action-color: var(--tone-violet); --action-soft: var(--tone-violet-soft); }

.quick-action:nth-child(2) { --action-color: var(--tone-amber); --action-soft: var(--tone-amber-soft); }

.quick-action:nth-child(3) { --action-color: var(--tone-indigo); --action-soft: var(--tone-indigo-soft); }

.quick-action {
  border-color: color-mix(in srgb, var(--action-color, var(--brand)) 22%, var(--line)) !important;
}

.quick-action i {
  color: var(--action-color, var(--brand)) !important;
  border-color: color-mix(in srgb, var(--action-color, var(--brand)) 44%, var(--line)) !important;
  background: var(--action-soft, var(--brand-soft)) !important;
}

.quick-action:hover {
  border-color: color-mix(in srgb, var(--action-color, var(--brand)) 58%, var(--line)) !important;
  background: var(--action-soft, var(--brand-soft)) !important;
}

.btn.primary {
  border-color: color-mix(in srgb, var(--page-color, var(--brand)) 64%, var(--brand-line)) !important;
}

.btn.secondary {
  color: var(--text) !important;
  border-color: color-mix(in srgb, var(--page-color, var(--accent)) 42%, var(--line)) !important;
  background: var(--page-soft, var(--accent-soft)) !important;
}

.btn.ghost i,
.btn.secondary i {
  color: var(--page-color, var(--accent));
}

details[open] {
  border-color: color-mix(in srgb, var(--page-color, var(--brand)) 44%, var(--line)) !important;
  background: var(--page-soft, var(--brand-soft)) !important;
}

.cal-dot.active {
  background: linear-gradient(90deg, var(--tone-emerald), var(--tone-lime)) !important;
}

.streak-cell.is-current {
  border-color: color-mix(in srgb, var(--tone-amber) 48%, var(--line)) !important;
}

.cards-list-item.is-selected {
  border-color: color-mix(in srgb, var(--tone-orange) 50%, var(--line)) !important;
  box-shadow: inset 4px 0 0 var(--tone-orange) !important;
}

.alert-card,
.error-state {
  border-color: color-mix(in srgb, var(--tone-rose) 48%, var(--line)) !important;
}

.alert-card > i,
.error-state > i {
  color: var(--tone-rose) !important;
}

.toast-success {
  border-color: color-mix(in srgb, var(--tone-emerald) 44%, var(--line-strong));
}

.toast-error {
  border-color: color-mix(in srgb, var(--tone-rose) 44%, var(--line-strong));
}

@media (max-width: 760px) {
.page-title-icon {
    border-radius: 0;
    font-size: 0.82rem;
  }

  .page-title-icon img {
    width: 34px;
    height: 34px;
  }
}

:root {
  --surface-glass: rgba(13, 15, 16, 0.86);
  --surface-clean: #0d0f10;
  --surface-clean-2: #111314;
  --control-bg: rgba(255, 255, 255, 0.055);
  --control-bg-hover: rgba(255, 255, 255, 0.085);
  --soft-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
  --card-shadow: 0 1px 0 rgba(255, 255, 255, 0.035), 0 12px 34px rgba(0, 0, 0, 0.16);
}

:root[data-theme="light"] {
  --surface-glass: rgba(255, 255, 255, 0.84);
  --surface-clean: #ffffff;
  --surface-clean-2: #f8fafc;
  --control-bg: rgba(15, 23, 42, 0.045);
  --control-bg-hover: rgba(15, 23, 42, 0.07);
  --soft-shadow: 0 10px 26px rgba(15, 23, 42, 0.08);
  --card-shadow: 0 1px 0 rgba(15, 23, 42, 0.025), 0 12px 28px rgba(15, 23, 42, 0.07);
}

body {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--bg) 94%, var(--surface-3)), var(--bg-soft)) !important;
}

.app-bg {
  opacity: 0.42;
  background-size: 64px 64px !important;
}

.dashboard-layout {
  gap: 12px !important;
}

.sidebar,
.topbar {
  border-color: color-mix(in srgb, var(--line) 78%, transparent) !important;
  background: var(--surface-glass) !important;
  box-shadow: var(--soft-shadow) !important;
}

.sidebar {
  backdrop-filter: blur(18px) saturate(1.08);
}

.sidebar-header {
  border-bottom-color: color-mix(in srgb, var(--line) 72%, transparent) !important;
}

.logo-box {
  width: 40px !important;
  height: 40px !important;
  flex-basis: 40px !important;
  border-radius: 13px !important;
}

.logo-text {
  font-size: 1.12rem !important;
}

#nav-list li:hover,
#nav-list-bottom li:hover,
#sidebar-subnav li:hover {
  background: var(--control-bg-hover) !important;
}

#nav-list li i,
#nav-list-bottom li i {
  width: 30px !important;
  height: 30px !important;
  border-radius: 10px !important;
}

.sidebar-status-card {
  border-color: color-mix(in srgb, var(--brand) 24%, var(--line)) !important;
  background:
    linear-gradient(135deg, var(--brand-soft), transparent 70%),
    var(--surface-clean-2) !important;
}

.topbar {
  align-items: center;
}

.brand-title {
  color: var(--muted-2) !important;
  letter-spacing: 0.08em !important;
}

.brand-sub {
  font-size: 1rem !important;
}

.menu-toggle,
.chip,
.btn,
.input,
.select,
.textarea,
.file-input {
  border-color: color-mix(in srgb, var(--line) 88%, transparent) !important;
  background-color: var(--control-bg) !important;
}

.chip {
  color: color-mix(in srgb, var(--muted) 72%, var(--text)) !important;
}

.chip b {
  color: var(--text) !important;
}

.page-header {
  align-items: center !important;
  padding: 2px 2px 4px !important;
}

.page-title {
  gap: 11px !important;
  letter-spacing: -0.03em !important;
}

.page-title-icon {
  width: 40px !important;
  height: 40px !important;
  flex-basis: 40px !important;
  border-radius: 0 !important;
}

.page-subtitle {
  max-width: 680px !important;
  margin-top: 6px !important;
  color: color-mix(in srgb, var(--muted) 82%, var(--text-soft)) !important;
}

.page-actions {
  padding: 5px !important;
  border-radius: 14px !important;
}

.card,
.alert-card,
.empty-state,
.placeholder,
.page-hero,
.collection-list-panel,
.inspector-panel {
  border-color: color-mix(in srgb, var(--line) 78%, transparent) !important;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.032), rgba(255, 255, 255, 0.012)),
    var(--surface-clean) !important;
  box-shadow: var(--card-shadow) !important;
}

.card:hover,
.cards-list-item:hover,
.quick-action:hover {
  transform: translateY(-1px);
}

.card-head {
  gap: 12px !important;
}

.h-title {
  letter-spacing: -0.02em;
}

.h-sub,
.small {
  color: color-mix(in srgb, var(--muted) 88%, var(--text-soft)) !important;
}

.workspace-label {
  color: color-mix(in srgb, var(--muted) 84%, var(--text-soft)) !important;
  letter-spacing: 0.08em !important;
}

.workspace-label i {
  width: 28px !important;
  height: 28px !important;
  border-radius: 10px !important;
}

.btn {
  border-radius: 10px !important;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast) !important;
}

.btn:hover,
.menu-toggle:hover {
  background: var(--control-bg-hover) !important;
  border-color: color-mix(in srgb, var(--page-color, var(--accent)) 34%, var(--line-strong)) !important;
}

.btn.primary {
  color: #06130c !important;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--page-color, var(--brand)) 70%, #ffffff), var(--page-color, var(--brand))) !important;
  box-shadow: 0 9px 20px color-mix(in srgb, var(--page-color, var(--brand)) 18%, transparent) !important;
}

:root[data-theme="light"] .btn.primary {
  color: #ffffff !important;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--page-color, var(--brand)) 88%, #ffffff), color-mix(in srgb, var(--page-color, var(--brand)) 88%, #111827)) !important;
}

.btn.ghost {
  background: transparent !important;
}

.input,
.select,
.textarea,
.file-input {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025) !important;
}

.input:hover,
.select:hover,
.textarea:hover,
.file-input:hover {
  background: var(--control-bg-hover) !important;
}

.input:focus,
.select:focus,
.textarea:focus,
.file-input:focus {
  border-color: color-mix(in srgb, var(--page-color, var(--accent)) 58%, var(--line)) !important;
}

.progress-ring-inner {
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--line) 76%, transparent);
}

.quick-action i {
  border-radius: 10px !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.045);
}

.quick-action,
.reward-grid > div,
.cards-list-item,
details,
.expander,
.file-drop {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.022), rgba(255, 255, 255, 0.008)),
    var(--surface-clean-2) !important;
  border-color: color-mix(in srgb, var(--line) 80%, transparent) !important;
}

.quick-action:hover,
.cards-list-item:hover,
.file-drop:hover {
  border-color: color-mix(in srgb, var(--page-color, var(--brand)) 40%, var(--line-strong)) !important;
}

.cal-cell.streak-cell {
  background: var(--surface-clean-2) !important;
}

.streak-cell.is-current {
  background:
    linear-gradient(135deg, var(--tone-amber-soft), transparent 74%),
    var(--surface-clean-2) !important;
}

.study-face {
  border-color: color-mix(in srgb, var(--page-color, var(--brand)) 24%, var(--line)) !important;
}

.study-front-text,
.study-back-text {
  letter-spacing: -0.025em !important;
}

.cards-list-item.is-selected {
  background:
    linear-gradient(90deg, var(--tone-orange-soft), transparent 72%),
    var(--surface-clean-2) !important;
}

.empty-state {
  border-style: solid !important;
  min-height: 150px !important;
}

.empty-state.compact {
  min-height: auto !important;
}

.alert-card,
.error-state {
  background:
    linear-gradient(135deg, var(--tone-rose-soft), transparent 70%),
    var(--surface-clean) !important;
}

.toast {
  background: var(--surface-glass) !important;
  backdrop-filter: blur(18px);
  box-shadow: var(--soft-shadow) !important;
}

@media (max-width: 760px) {
.page-header {
    align-items: start !important;
  }

.page-title {
    gap: 9px !important;
  }

.page-title-icon {
    width: 40px !important;
    height: 40px !important;
    flex-basis: 40px !important;
  }

.card,
.alert-card,
.empty-state,
.placeholder,
.page-hero,
.collection-list-panel,
.inspector-panel {
    border-radius: 14px !important;
  }
}

/* Keep the collapsed rail at zero width so it cannot push the app below the viewport. */
body.desktop-sidebar-collapsed .sidebar {
  grid-column: 1 !important;
  grid-row: 1 !important;
  width: 0 !important;
  min-width: 0 !important;
  border-width: 0 !important;
  opacity: 0 !important;
  overflow: hidden !important;
  pointer-events: none !important;
  transform: translateX(-120%) !important;
}

body.desktop-sidebar-collapsed .main-wrapper {
  grid-column: 2 !important;
  grid-row: 1 !important;
  min-width: 0 !important;
}

@media (max-width: 930px) {
body.desktop-sidebar-collapsed .dashboard-layout,
body.desktop-sidebar-collapsed .dashboard-layout.orbit-layout {
    grid-template-columns: minmax(0, 1fr) !important;
  }

body.desktop-sidebar-collapsed .sidebar {
    position: fixed !important;
    width: min(var(--sidebar-width), calc(100vw - 40px)) !important;
    border-width: 1px !important;
  }

body.desktop-sidebar-collapsed .main-wrapper {
    grid-column: 1 !important;
    grid-row: auto !important;
  }
}

:root {
  --topbar-height: 58px !important;
}

.dashboard-layout,
.dashboard-layout.orbit-layout {
  padding: 0 !important;
  gap: 0 !important;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr) !important;
  min-height: 100vh !important;
  background: var(--bg) !important;
}

.sidebar,
.sidebar.context-rail {
  position: sticky !important;
  top: 0 !important;
  height: 100vh !important;
  width: var(--sidebar-width) !important;
  border: 0 !important;
  border-right: 1px solid color-mix(in srgb, var(--line) 84%, transparent) !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  background: color-mix(in srgb, var(--surface) 96%, var(--bg)) !important;
  backdrop-filter: none !important;
}

.sidebar-header {
  border-bottom: 1px solid color-mix(in srgb, var(--line) 78%, transparent) !important;
}

.main-wrapper {
  min-height: 100vh !important;
  background: var(--bg) !important;
}

.topbar {
  min-height: var(--topbar-height) !important;
  border-top: 0 !important;
  border-left: 0 !important;
  border-right: 0 !important;
  grid-template-columns: auto minmax(220px, 1fr) auto !important;
}

.topbar-left {
  min-width: 168px !important;
}

.topbar-right {
  min-width: max-content !important;
}

/* Search stays out of the header; the slash shortcut still opens Dictionary search. */
#quick-search-button {
  display: none !important;
}

.topbar-center,
.topbar-center:not(.hidden) {
  display: flex !important;
  min-width: 0 !important;
  justify-content: center !important;
  overflow: hidden !important;
}

.topbar-center.hidden {
  display: none !important;
}

#nav-top {
  display: flex !important;
  max-width: 100% !important;
  border: 0 !important;
  padding: 3px !important;
  gap: 4px !important;
  background: var(--control-bg) !important;
  box-shadow: none !important;
}

#nav-top li {
  min-height: 32px !important;
  display: inline-flex !important;
  align-items: center !important;
  padding: 7px 12px !important;
  border-radius: 999px !important;
  font-size: .78rem !important;
  font-weight: 850 !important;
  cursor: pointer !important;
}

#nav-top li.active {
  color: var(--text) !important;
  border-color: color-mix(in srgb, var(--page-color, var(--brand)) 42%, var(--line)) !important;
  background: var(--page-soft, var(--brand-soft)) !important;
}

#sidebar-subnav-wrap {
  display: none !important;
}

.content-area {
  padding: 16px 18px 24px !important;
}

body.desktop-sidebar-collapsed .dashboard-layout,
body.desktop-sidebar-collapsed .dashboard-layout.orbit-layout {
  grid-template-columns: 0 minmax(0, 1fr) !important;
}

body.desktop-sidebar-collapsed .sidebar {
  border-right: 0 !important;
}

@media (max-width: 1180px) {
.topbar {
    grid-template-columns: auto minmax(0, 1fr) auto !important;
  }

.topbar-center {
    order: initial !important;
    grid-column: auto !important;
  }
}

@media (max-width: 930px) {
.dashboard-layout,
.dashboard-layout.orbit-layout {
    grid-template-columns: minmax(0, 1fr) !important;
  }

.sidebar,
.sidebar.context-rail {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: min(var(--sidebar-width), 86vw) !important;
    max-width: 320px !important;
    height: 100vh !important;
    border-right: 1px solid color-mix(in srgb, var(--line) 84%, transparent) !important;
    transform: translateX(0) !important;
    z-index: 50 !important;
  }

body.sidebar-collapsed .sidebar {
    transform: translateX(-105%) !important;
  }

.topbar {
    grid-template-columns: auto minmax(0, 1fr) auto !important;
  }

.topbar-center,
.topbar-center:not(.hidden),
#nav-top {
    display: none !important;
  }

#sidebar-subnav-wrap:not(.hidden) {
    display: block !important;
  }

.topbar-right {
    grid-column: auto !important;
    justify-content: flex-end !important;
    overflow: visible !important;
    padding-bottom: 0 !important;
  }

.topbar-right .chip:not(.app-loading-chip) {
    display: none !important;
  }

.content-area {
    padding: 12px 12px 20px !important;
  }
}

.topbar {
  top: 12px !important;
  margin: 12px 14px 0 !important;
  width: calc(100% - 28px) !important;
  border-radius: 18px !important;
  backdrop-filter: blur(18px) !important;
}

.content-area {
  padding-top: 16px !important;
}

body.desktop-sidebar-collapsed .topbar {
  margin-inline: 14px !important;
  width: calc(100% - 28px) !important;
}

@media (max-width: 930px) {
.topbar {
    top: 10px !important;
    margin: 10px 10px 0 !important;
    width: calc(100% - 20px) !important;
    border: 1px solid color-mix(in srgb, var(--line) 86%, transparent) !important;
    border-radius: 16px !important;
    box-shadow: var(--shadow-sm) !important;
  }
}

.brand-logo-mark,
.logo-box.brand-logo-mark {
  overflow: hidden !important;
  padding: 0 !important;
  border-radius: 15px !important;
  background: radial-gradient(circle at 50% 48%, rgba(245,248,250,.035), transparent 72%), var(--surface-muted) !important;
  border: 1px solid var(--brand-line) !important;
}

.logo-box.brand-logo-mark img,
.topbar-brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sidebar-header > div:last-child {
  min-width: 0;
}

.logo-text,
.logo-sub {
  text-align: center !important;
}

.logo-text {
  letter-spacing: -.03em !important;
}

.logo-sub {
  width: 100%;
  display: block;
  margin-top: 5px !important;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.brand-inline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.topbar-brand-mark {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  overflow: hidden;
  border-radius: 11px;
  border: 1px solid var(--brand-line);
  background: var(--surface-muted);
  box-shadow: 0 8px 20px rgba(0,0,0,.18);
}

@media (max-width: 640px) {

  .topbar-brand-mark {
    display: none;
  }
}

.brand-lockup-box {
  width: 100%;
  display: grid;
  place-items: center;
  padding: 10px;
  border-radius: 18px;
}

.sidebar-lockup-box {
  border-radius: 22px;
}

.brand-lockup-image {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.brand-inline.brand-inline-textonly {
  gap: 0 !important;
}

.brand-inline.brand-inline-textonly .brand-copy {
  display: grid;
  gap: 2px;
}

.topbar-brand-mark {
  display: none !important;
}

.logo-box.brand-logo-mark,
.logo-text,
.logo-sub {
  display: none !important;
}

@media (max-width: 930px) {
  .sidebar-lockup-box {
    min-height: 66px;
  }

}

.brand-lockup-box {
  background: transparent !important;
  box-shadow: none !important;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent) !important;
}

.brand-lockup-box,
.sidebar-lockup-box {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  border-radius: 0 !important;
}

.sidebar-lockup-box {
  padding: 0 !important;
  min-height: auto !important;
}

.brand-lockup-image {
  filter: none !important;
}

/* The supplied light-theme asset already has the intended colors. */
:root[data-theme="light"] .themed-brand-image {
  filter: none !important;
}

.sidebar,
.sidebar.context-rail,
.topbar {
  background: color-mix(in srgb, var(--surface) 96%, var(--bg)) !important;
}

.topbar {
  border-bottom: 1px solid color-mix(in srgb, var(--line) 84%, transparent) !important;
}

.sidebar-header {
  padding-bottom: 12px !important;
}

.sidebar-nav {
  padding: 12px 10px 14px !important;
}

.nav-section-title {
  margin: 4px 10px 8px !important;
  font-size: 0.76rem !important;
  letter-spacing: 0.14em !important;
}

#nav-list,
#nav-list-bottom,
#sidebar-subnav {
  gap: 8px !important;
}

#nav-list li,
#nav-list-bottom li,
#sidebar-subnav li {
  min-height: 42px !important;
  padding: 8px 10px !important;
  gap: 10px !important;
  font-size: 0.96rem !important;
  border-radius: 12px !important;
  color: color-mix(in srgb, var(--muted) 84%, var(--text)) !important;
  background: transparent !important;
  border-color: transparent !important;
}

#nav-list li i,
#nav-list-bottom li i,
#sidebar-subnav li i,
#nav-list li .nav-page-icon,
#nav-list-bottom li .nav-page-icon {
  width: 28px !important;
  height: 28px !important;
  min-width: 28px !important;
  border-radius: 0 !important;
  color: color-mix(in srgb, var(--muted) 72%, var(--text)) !important;
  border: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

#nav-list li:hover,
#nav-list li:focus-visible,
#nav-list-bottom li:hover,
#nav-list-bottom li:focus-visible,
#sidebar-subnav li:hover,
#sidebar-subnav li:focus-visible {
  color: var(--text) !important;
  background: linear-gradient(90deg, color-mix(in srgb, var(--item-soft) 100%, transparent), transparent 92%) !important;
  border-color: color-mix(in srgb, var(--item-color) 50%, var(--line)) !important;
  transform: none !important;
}

#nav-list li:hover i,
#nav-list li:focus-visible i,
#nav-list-bottom li:hover i,
#nav-list-bottom li:focus-visible i,
#nav-list li:hover .nav-page-icon,
#nav-list li:focus-visible .nav-page-icon,
#nav-list-bottom li:hover .nav-page-icon,
#nav-list-bottom li:focus-visible .nav-page-icon,
#sidebar-subnav li:hover i,
#sidebar-subnav li:focus-visible i {
  color: var(--item-color) !important;
  border-color: transparent !important;
  background: transparent !important;
}

#nav-list li.active,
#nav-list-bottom li.active,
#sidebar-subnav li.active {
  color: var(--text) !important;
  background: linear-gradient(90deg, color-mix(in srgb, var(--item-soft) 100%, transparent), color-mix(in srgb, var(--item-soft) 42%, transparent)) !important;
  border-color: color-mix(in srgb, var(--item-color) 56%, var(--line)) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05) !important;
}

#nav-list li.active i,
#nav-list-bottom li.active i,
#nav-list li.active .nav-page-icon,
#nav-list-bottom li.active .nav-page-icon,
#sidebar-subnav li.active i {
  color: var(--item-color) !important;
  border-color: transparent !important;
  background: transparent !important;
}

#nav-list li.active::before,
#nav-list-bottom li.active::before,
#sidebar-subnav li.active::before {
  background: var(--item-color) !important;
}

/* Explicit page colors are shared by active navigation and subsection previews. */
#nav-list li[data-page="Home"] { --item-color: var(--tone-sky); --item-soft: var(--tone-sky-soft); }
#nav-list li[data-page="Dictionary"] { --item-color: var(--tone-emerald); --item-soft: var(--tone-emerald-soft); }
#nav-list li[data-page="Review"] { --item-color: var(--tone-violet); --item-soft: var(--tone-violet-soft); }
#nav-list li[data-page="Cards"] { --item-color: var(--tone-orange); --item-soft: var(--tone-orange-soft); }
#nav-list li[data-page="Brainstorm"] { --item-color: #f3b73e; --item-soft: rgba(243, 183, 62, 0.14); }
#nav-list li[data-page="Notes"] { --item-color: var(--tone-amber); --item-soft: var(--tone-amber-soft); }
#nav-list li[data-page="Music"] { --item-color: var(--tone-rose); --item-soft: var(--tone-rose-soft); }

#nav-list li[data-page="Leaderboard"] { --item-color: #ffcf5a; --item-soft: rgba(255, 207, 90, 0.14); }
#nav-list li[data-page="Challenges"] { --item-color: var(--tone-challenge); --item-soft: var(--tone-challenge-soft); }
#nav-list li[data-page="Grammar"] { --item-color: var(--tone-indigo); --item-soft: var(--tone-indigo-soft); }
#nav-list li[data-page="Classes"] { --item-color: var(--tone-cyan); --item-soft: var(--tone-cyan-soft); }
#nav-list li[data-page="Export"] { --item-color: var(--tone-emerald); --item-soft: var(--tone-emerald-soft); }

body[data-current-page="Review"] .topbar-center,
body[data-current-page="Review"] #sidebar-subnav { --page-color: var(--tone-violet); --page-soft: var(--tone-violet-soft); --item-color: var(--tone-violet); --item-soft: var(--tone-violet-soft); }
body[data-current-page="Notes"] .topbar-center,
body[data-current-page="Notes"] #sidebar-subnav { --page-color: var(--tone-amber); --page-soft: var(--tone-amber-soft); --item-color: var(--tone-amber); --item-soft: var(--tone-amber-soft); }
body[data-current-page="Music"] .topbar-center,
body[data-current-page="Music"] #sidebar-subnav { --page-color: var(--tone-rose); --page-soft: var(--tone-rose-soft); --item-color: var(--tone-rose); --item-soft: var(--tone-rose-soft); }
body[data-current-page="Leaderboard"] .topbar-center,
body[data-current-page="Leaderboard"] #sidebar-subnav { --page-color: #ffcf5a; --page-soft: rgba(255, 207, 90, 0.14); --item-color: #ffcf5a; --item-soft: rgba(255, 207, 90, 0.14); }
body[data-current-page="Grammar"] .topbar-center,
body[data-current-page="Grammar"] #sidebar-subnav { --page-color: var(--tone-indigo); --page-soft: var(--tone-indigo-soft); --item-color: var(--tone-indigo); --item-soft: var(--tone-indigo-soft); }

#nav-list-bottom li { --item-color: var(--tone-lime); --item-soft: var(--tone-lime-soft); }
#sidebar-subnav li { --item-color: var(--tone-cyan); --item-soft: var(--tone-cyan-soft); }
body[data-current-page="Review"] #sidebar-subnav li { --item-color: var(--tone-violet); --item-soft: var(--tone-violet-soft); }
body[data-current-page="Notes"] #sidebar-subnav li { --item-color: var(--tone-amber); --item-soft: var(--tone-amber-soft); }
body[data-current-page="Music"] #sidebar-subnav li { --item-color: var(--tone-rose); --item-soft: var(--tone-rose-soft); }
body[data-current-page="Grammar"] #sidebar-subnav li { --item-color: var(--tone-indigo); --item-soft: var(--tone-indigo-soft); }

.sidebar,
.sidebar.context-rail {
  display: flex !important;
  flex-direction: column !important;
}

.sidebar-nav {
  display: flex !important;
  flex-direction: column !important;
  flex: 1 1 auto !important;
  min-height: 0 !important;
}

.nav-section-title.bottom-title {
  margin-top: auto !important;
  padding-top: 28px !important;
}

#nav-list-bottom {
  margin-top: 0 !important;
}

.sidebar-status-card {
  margin-top: 14px !important;
}

.sidebar-header.sidebar-brand-panel {
  position: relative !important;
}

.menu-toggle:hover {
  border-color: color-mix(in srgb, var(--brand-line) 88%, transparent) !important;
  background: color-mix(in srgb, var(--surface-2) 88%, transparent) !important;
}

.topbar {
  background: linear-gradient(180deg,
      color-mix(in srgb, var(--surface) 72%, transparent),
      color-mix(in srgb, var(--surface) 56%, transparent)) !important;
  border: 1px solid color-mix(in srgb, var(--line) 84%, transparent) !important;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.06),
    0 14px 34px rgba(0,0,0,.16) !important;
  -webkit-backdrop-filter: blur(18px) saturate(145%);
}

.topbar::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,0));
}

.topbar-left,
.topbar-right,
.topbar-center {
  position: relative;
  z-index: 1;
}

.topbar-left {
  gap: 10px !important;
}

@media (min-width: 931px) {
  .topbar-left {
    padding-left: 2px;
  }
}

@media (max-width: 930px) {

  .topbar-left {
    gap: 12px !important;
  }
}

.menu-toggle {
  width: auto !important;
  height: auto !important;
  min-width: 0 !important;
  min-height: 0 !important;
  padding: 6px 8px !important;
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.menu-toggle:hover,
.menu-toggle:focus-visible {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  opacity: .9;
}

.menu-toggle i {
  font-size: 1.35rem !important;
  line-height: 1 !important;
  color: var(--text) !important;
}

:root[data-theme="light"] .menu-toggle i {
  color: #101418 !important;
}

:root[data-theme="dark"] .menu-toggle i,
html:not([data-theme="light"]) .menu-toggle i {
  color: #ffffff !important;
}

.sidebar-menu-toggle {
  z-index: 5;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
}

/* Desktop keeps this control available only when the collapsed sidebar must be reopened. */
.mobile-menu-toggle {
  display: none !important;
  align-items: center;
  justify-content: center;
}

@media (min-width: 931px) {
  body.desktop-sidebar-collapsed .mobile-menu-toggle {
    display: inline-flex !important;
  }

  body:not(.desktop-sidebar-collapsed) .mobile-menu-toggle {
    display: none !important;
  }
}

@media (max-width: 930px) {
  .sidebar-menu-toggle {
    display: none !important;
  }

  .mobile-menu-toggle {
    display: inline-flex !important;
  }
}

.sidebar-lockup-box {
  display: flex !important;
  align-items: center !important;
}

:root {
  --sidebar-width: 286px !important;
}

.sidebar-header.sidebar-brand-panel {
  display: flex !important;
  align-items: center !important;
  justify-content: flex-start !important;
  gap: 10px !important;
  padding: 18px 14px 16px !important;
  padding-right: 14px !important;
}

.sidebar-lockup-box {
  flex: 0 1 auto !important;
  width: auto !important;
  max-width: none !important;
  justify-content: flex-start !important;
}

.sidebar-lockup-box .brand-lockup-image {
  width: 218px !important;
  max-width: 100% !important;
}

.sidebar-menu-toggle {
  position: static !important;
  top: auto !important;
  right: auto !important;
  margin-left: 2px !important;
  padding: 4px !important;
  flex: 0 0 auto !important;
  align-self: center !important;
}

.sidebar-nav {
  padding-left: 10px !important;
  padding-right: 10px !important;
}

:root {
  --sidebar-motion: 360ms cubic-bezier(.22, 1, .36, 1);
  --sidebar-fade-motion: 240ms ease;
}

body.sidebar-motion-ready .dashboard-layout,
body.sidebar-motion-ready .dashboard-layout.orbit-layout {
  transition: grid-template-columns var(--sidebar-motion) !important;
}

body.sidebar-motion-ready .sidebar,
body.sidebar-motion-ready .sidebar.context-rail {
  transition:
    transform var(--sidebar-motion),
    opacity var(--sidebar-fade-motion),
    width var(--sidebar-motion),
    min-width var(--sidebar-motion),
    border-width var(--sidebar-fade-motion),
    box-shadow var(--sidebar-fade-motion) !important;
  will-change: transform, opacity, width;
}

body.sidebar-motion-ready .mobile-menu-toggle {
  transition:
    opacity var(--sidebar-fade-motion),
    transform var(--sidebar-fade-motion),
    border-color var(--transition-fast),
    background var(--transition-fast) !important;
}

@media (min-width: 931px) {
  body.sidebar-motion-ready.desktop-sidebar-collapsed .mobile-menu-toggle {
    animation: sidebar-toggle-pop 220ms ease both;
  }
}

@media (max-width: 930px) {
  body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 40;
    background: var(--overlay);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--sidebar-fade-motion) !important;
  }

  body:not(.sidebar-collapsed)::after {
    opacity: 1;
    pointer-events: auto;
  }
}

@keyframes sidebar-toggle-pop {
  from { opacity: 0; transform: translateX(-8px) scale(.96); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  body.sidebar-motion-ready .dashboard-layout,
  body.sidebar-motion-ready .dashboard-layout.orbit-layout,
  body.sidebar-motion-ready .sidebar,
  body.sidebar-motion-ready .sidebar.context-rail,
  body.sidebar-motion-ready .mobile-menu-toggle,
  body::after {
    animation: none !important;
    transition: none !important;
  }
}

@media (max-width: 930px) {
  .sidebar-header.sidebar-brand-panel {
    gap: 8px !important;
  }

  .sidebar-lockup-box .brand-lockup-image {
    width: 208px !important;
  }
}

/* Shared RTL typography and physical-edge corrections. */
:root[dir="rtl"] {
  direction: rtl;
  --font-sans: "Noto Kufi Arabic", "Vazirmatn", "Noto Sans Arabic", "Tahoma", "Segoe UI", system-ui, sans-serif;
  --font-display: "Noto Kufi Arabic", "Vazirmatn", "Noto Sans Arabic", "Tahoma", "Segoe UI", system-ui, sans-serif;
}

:root[dir="rtl"] body {
  font-family: var(--font-sans);
  font-feature-settings: "kern" 1;
  letter-spacing: 0;
  line-height: 1.62;
  text-align: start;
}

:root[dir="rtl"] body :where(:not(.fa):not(.fa-brands):not(.fa-classic):not(.fa-regular):not(.fa-solid):not(.fab):not(.far):not(.fas)) {
  font-family: var(--font-sans) !important;
}

:root[dir="rtl"] :is(h1, h2, h3, h4, h5, h6, button, input, textarea, select, label, .btn, .chip, .workspace-label, .h-title, .brand-title, .page-title) {
  letter-spacing: 0 !important;
}

:root[dir="rtl"] .card,
:root[dir="rtl"] .sidebar,
:root[dir="rtl"] .topbar {
  direction: rtl;
}

:root[dir="rtl"] .brand-title,
:root[dir="rtl"] .status-label,
:root[dir="rtl"] .eyebrow {
  letter-spacing: 0;
}

:root[dir="rtl"] #sidebar-subnav li {
  padding: 8px 38px 8px 11px;
}

:root[dir="rtl"] body.desktop-sidebar-collapsed .sidebar {
  transform: translateX(100%);
}

:root[dir="rtl"] .toast-stack {
  right: auto;
  left: 18px;
}

@media (max-width: 930px) {

  :root[dir="rtl"] .sidebar,
  :root[dir="rtl"] .sidebar.context-rail {
    left: auto !important;
    right: 0 !important;
    border-right: 0 !important;
    border-left: 1px solid color-mix(in srgb, var(--line) 84%, transparent) !important;
  }

  :root[dir="rtl"] body.sidebar-collapsed .sidebar {
    transform: translateX(105%) !important;
  }

}

.word-read { --word-color: var(--tone-emerald); }
.word-hear { --word-color: var(--tone-sky); }
.word-practice { --word-color: var(--tone-violet); }

/* Shared custom-select layout used across feature workspaces. */
.custom-select {
  position: relative;
  width: 100%;
  min-width: 0;
}

.custom-select .select-native {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  min-height: 0 !important;
  opacity: 0 !important;
  pointer-events: none !important;
  padding: 0 !important;
  border: 0 !important;
}

.custom-select-button {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 11px;
  border: 1px solid color-mix(in srgb, var(--line) 88%, transparent);
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.012)),
    var(--control-bg, var(--input-bg));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.03);
  font: inherit;
  font-size: .9rem;
  font-weight: 850;
  line-height: 1.2;
  text-align: left;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.custom-select-button span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.custom-select-button i {
  flex: 0 0 auto;
  color: color-mix(in srgb, var(--muted) 86%, var(--text-soft));
  font-size: .78rem;
  transition: transform var(--transition-fast);
}

.custom-select:hover .custom-select-button,
.custom-select.open .custom-select-button {
  border-color: color-mix(in srgb, var(--page-color, var(--accent)) 48%, var(--line-strong));
  background: var(--control-bg-hover, color-mix(in srgb, var(--surface-2) 82%, transparent));
}

.custom-select.open .custom-select-button i {
  transform: rotate(180deg);
}

.custom-select-button:disabled {
  cursor: not-allowed;
  opacity: .5;
}

.custom-select-menu {
  position: absolute;
  left: 0;
  right: 0;
  z-index: 120;
  display: none;
  overflow: auto;
  border: 1px solid color-mix(in srgb, var(--page-color, var(--accent)) 32%, var(--line-strong));
}

.custom-select.open .custom-select-menu {
  display: grid;
  gap: 3px;
}

.custom-select-menu button {
  width: 100%;
  display: flex;
  align-items: center;
  border: 1px solid transparent;
  background: transparent;
  font: inherit;
  font-size: .9rem;
  font-weight: 760;
  text-align: left;
  cursor: pointer;
}

.custom-select-menu button:disabled {
  color: color-mix(in srgb, var(--muted) 42%, transparent);
  cursor: not-allowed;
  background: transparent;
}

.select option,
.select optgroup {
  color: var(--text);
  background: var(--surface-2);
}

.lookup-card:has(.custom-select.open) {
  position: relative;
  overflow: visible !important;
  z-index: 70;
}

.lookup-card > form:has(.custom-select.open) {
  z-index: 60;
}

@media (max-width: 760px) {
  .page-header .page-actions,
.search-btn-wrap,
.field.field-action {
    width: fit-content !important;
    max-width: 100% !important;
    margin-inline-start: auto !important;
    margin-inline-end: 0 !important;
    justify-self: end !important;
    align-self: end !important;
    justify-content: flex-end !important;
  }

  .page-header .page-actions>.btn,
.page-header .page-actions>a.btn,
.search-btn-wrap .btn,
.field.field-action>.btn {
    width: auto !important;
    flex: 0 0 auto !important;
  }

}

.sidebar::after {
  content: "";
  position: absolute;
  inset: 1px;
  pointer-events: none;
  border-radius: inherit;
  z-index: 0;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.045), transparent 36%),
    linear-gradient(270deg, rgba(255, 255, 255, 0.025), transparent 46%);
  opacity: 0.62;
}

.sidebar > * {
  position: relative;
  z-index: 1;
}

:root {
  --logo-blue: #6d8cff;
  --logo-blue-soft: rgba(109, 140, 255, 0.14);
  --logo-blue-line: rgba(109, 140, 255, 0.42);
}

:root[data-theme="light"] {
  --logo-blue: #496fe8;
  --logo-blue-soft: rgba(73, 111, 232, 0.1);
  --logo-blue-line: rgba(73, 111, 232, 0.34);
}

.topbar-right .top-locale-button,
.topbar-right .top-locale-select,
.topbar-right .top-theme-toggle {
  color: var(--text) !important;
  border-color: color-mix(in srgb, var(--line) 86%, transparent) !important;
  background: var(--control-bg, var(--chip)) !important;
  box-shadow: none !important;
}

.topbar-right .locale-picker-enhanced.open .top-locale-button,
.topbar-right .top-locale-button:focus-visible,
.topbar-right .top-locale-button:hover,
.topbar-right .top-locale-select:focus-visible,
.topbar-right .top-locale-select:hover,
.topbar-right .top-theme-toggle:focus-visible,
.topbar-right .top-theme-toggle:hover {
  color: color-mix(in srgb, var(--logo-blue) 86%, var(--text)) !important;
  border-color: color-mix(in srgb, var(--logo-blue) 68%, var(--line-strong)) !important;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--logo-blue-soft) 100%, transparent), color-mix(in srgb, var(--logo-blue-soft) 58%, transparent)),
    var(--control-bg-hover, var(--surface-3)) !important;
  outline-color: color-mix(in srgb, var(--logo-blue) 24%, transparent);
}

.topbar-right .top-locale-button,
.topbar-right .top-locale-select,
.topbar-right .top-theme-toggle i {
  color: var(--text) !important;
}

.topbar-right .locale-picker-enhanced.open .top-locale-button,
.topbar-right .top-locale-button:focus-visible,
.topbar-right .top-locale-button:hover,
.topbar-right .top-locale-select:focus-visible,
.topbar-right .top-locale-select:hover,
.topbar-right .top-theme-toggle:focus-visible i,
.topbar-right .top-theme-toggle:hover i {
  color: var(--logo-blue) !important;
}

@media (min-width: 931px) {
  .topbar-right > .chip:not(.app-loading-chip) {
    min-height: 28px !important;
    gap: 5px !important;
    padding: 4px 9px !important;
    font-size: .76rem !important;
  }
}

@media (max-width: 720px) {
  .topbar {
    grid-template-columns: auto minmax(0, 1fr) !important;
  }

  .topbar-right {
    min-width: 0 !important;
    padding-inline-end: 0px !important;
  }

}

@keyframes class-mobile-menu-in {
  from {
    opacity: 0;
    transform: translateY(-6px) scale(.985);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.toast {
  border-radius: 8px;
  border-color: color-mix(in srgb, var(--accent) 24%, var(--line));
}

.custom-select {
  isolation: isolate;
}

.custom-select-button {
  min-height: 42px;
  border-radius: 8px;
}

.custom-select.open {
  z-index: 1600;
}

.custom-select.open .custom-select-button {
  border-color: color-mix(in srgb, var(--page-color, var(--accent)) 56%, var(--line-strong));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--page-color, var(--accent)) 18%, transparent);
}

.custom-select-menu {
  top: calc(100% + 8px);
  max-height: min(300px, 46vh);
  padding: 6px;
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.018)),
    color-mix(in srgb, var(--surface-2) 96%, var(--bg));
  box-shadow: 0 24px 54px rgba(0,0,0,.42), 0 0 0 1px rgba(255,255,255,.04);
}

.custom-select-menu button {
  min-height: 38px;
  border-radius: 6px;
  padding: 9px 10px;
  color: color-mix(in srgb, var(--text-soft) 90%, var(--muted));
}

.custom-select-menu button:hover,
.custom-select-menu button.active {
  color: var(--text);
  border-color: color-mix(in srgb, var(--page-color, var(--accent)) 28%, transparent);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--page-color, var(--accent)) 12%, transparent), transparent 82%),
    color-mix(in srgb, var(--surface-3) 78%, transparent);
}

.custom-select-menu button.active {
  box-shadow: inset 3px 0 0 var(--page-color, var(--accent));
}

.field-grid:has(.custom-select.open),
.field:has(.custom-select.open),
.save-grid:has(.custom-select.open) {
  position: relative;
  z-index: 1500;
}

.card:has(.custom-select.open),
.collection-list-panel:has(.custom-select.open),
.inspector-panel:has(.custom-select.open),
.lookup-card:has(.custom-select.open) {
  overflow: visible !important;
  z-index: 1200;
}

.input[type="date"],
.input[type="time"],
.input[type="datetime-local"],
.input[type="month"],
input[type="date"].input,
input[type="time"].input,
input[type="datetime-local"].input,
input[type="month"].input {
  min-height: 42px;
  appearance: none;
  color-scheme: dark;
  letter-spacing: 0;
  cursor: pointer;
}

:root[data-theme="light"] .input[type="date"],
:root[data-theme="light"] .input[type="time"],
:root[data-theme="light"] .input[type="datetime-local"],
:root[data-theme="light"] .input[type="month"],
:root[data-theme="light"] input[type="date"].input,
:root[data-theme="light"] input[type="time"].input,
:root[data-theme="light"] input[type="datetime-local"].input,
:root[data-theme="light"] input[type="month"].input {
  color-scheme: light;
}

.input[type="date"]::-webkit-datetime-edit,
.input[type="time"]::-webkit-datetime-edit,
.input[type="datetime-local"]::-webkit-datetime-edit,
.input[type="month"]::-webkit-datetime-edit {
  padding: 0;
}

.input[type="date"]::-webkit-datetime-edit-fields-wrapper,
.input[type="time"]::-webkit-datetime-edit-fields-wrapper,
.input[type="datetime-local"]::-webkit-datetime-edit-fields-wrapper,
.input[type="month"]::-webkit-datetime-edit-fields-wrapper {
  color: var(--text);
}

.input[type="date"]::-webkit-datetime-edit-text,
.input[type="time"]::-webkit-datetime-edit-text,
.input[type="datetime-local"]::-webkit-datetime-edit-text,
.input[type="month"]::-webkit-datetime-edit-text {
  color: color-mix(in srgb, var(--muted) 82%, var(--text-soft));
  padding: 0 2px;
}

.input[type="date"]::-webkit-calendar-picker-indicator,
.input[type="time"]::-webkit-calendar-picker-indicator,
.input[type="datetime-local"]::-webkit-calendar-picker-indicator,
.input[type="month"]::-webkit-calendar-picker-indicator {
  width: 18px;
  height: 18px;
  margin-inline-start: 8px;
  padding: 5px;
  border: 1px solid color-mix(in srgb, var(--page-color, var(--accent)) 28%, var(--line));
  border-radius: 7px;
  background-color: color-mix(in srgb, var(--page-color, var(--accent)) 11%, transparent);
  cursor: pointer;
}

.input[type="date"]:hover::-webkit-calendar-picker-indicator,
.input[type="time"]:hover::-webkit-calendar-picker-indicator,
.input[type="datetime-local"]:hover::-webkit-calendar-picker-indicator,
.input[type="month"]:hover::-webkit-calendar-picker-indicator,
.input[type="date"]:focus::-webkit-calendar-picker-indicator,
.input[type="time"]:focus::-webkit-calendar-picker-indicator,
.input[type="datetime-local"]:focus::-webkit-calendar-picker-indicator,
.input[type="month"]:focus::-webkit-calendar-picker-indicator {
  border-color: color-mix(in srgb, var(--page-color, var(--accent)) 54%, var(--line-strong));
  background-color: color-mix(in srgb, var(--page-color, var(--accent)) 18%, transparent);
}

.logical-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

:root[dir="rtl"] .logical-nav-btn i {
  transform: scaleX(-1);
}

/* In RTL, the active rail belongs beside the icons on the physical right edge. */
:root[dir="rtl"] #nav-list li.active,
:root[dir="rtl"] #nav-list-bottom li.active,
:root[dir="rtl"] #sidebar-subnav li.active {
  padding-right: 18px !important;
  padding-left: 11px !important;
}

:root[dir="rtl"] #nav-list li.active::before,
:root[dir="rtl"] #nav-list-bottom li.active::before,
:root[dir="rtl"] #sidebar-subnav li.active::before {
  right: 8px !important;
  left: auto !important;
}

/* Shared flashcard treatment; page color supplies each feature's accent. */
.study-flip {
  cursor: pointer;
}

.study-face {
  --pc: var(--page-color, var(--accent));
  border: 1px solid color-mix(in srgb, var(--pc) 28%, var(--line)) !important;
  border-radius: 22px !important;
  background:
    radial-gradient(130% 90% at 6% -12%, color-mix(in srgb, #fff 6%, transparent), transparent 46%),
    radial-gradient(150% 130% at 104% 116%, color-mix(in srgb, var(--pc) 18%, transparent), transparent 52%),
    linear-gradient(152deg, color-mix(in srgb, var(--pc) 9%, transparent), transparent 55%),
    var(--surface-clean-2) !important;
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, #fff 14%, transparent),
    inset 0 0 0 1px color-mix(in srgb, var(--pc) 8%, transparent),
    0 20px 44px -26px color-mix(in srgb, var(--pc) 62%, #000),
    0 3px 10px -6px rgba(0, 0, 0, 0.45) !important;
  transition: box-shadow 260ms var(--ease), border-color 260ms var(--ease);
}

.study-head .chip {
  border-color: color-mix(in srgb, var(--pc) 32%, var(--chipb)) !important;
  background: color-mix(in srgb, var(--pc) 13%, var(--chip)) !important;
  color: color-mix(in srgb, var(--pc) 58%, var(--text)) !important;
}

/* Avoid z-index here: face children must remain inside the backface-hidden plane. */
.study-face > .small {
  position: relative;
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--pc) 26%, var(--line));
  background: color-mix(in srgb, var(--pc) 9%, transparent);
  color: color-mix(in srgb, var(--pc) 66%, var(--text));
  font-weight: 700;
  font-size: 0.76rem;
}
.study-face > .small::before {
  content: "\21bb";
  font-size: 0.95em;
  line-height: 1;
}

.study-front-text { text-shadow: 0 1px 2px color-mix(in srgb, #000 22%, transparent); }

/* Pointer-only motion avoids stuck hover and back-face bleed on touch screens. */
@media (hover: hover) and (pointer: fine) {
  .study-flip {
    transition: transform 260ms var(--ease), filter 260ms var(--ease);
  }
  .study-flip:hover { transform: translateY(-5px); }
  .study-flip:active { transform: translateY(-1px) scale(0.995); }

  .study-flip:hover .study-face {
    border-color: color-mix(in srgb, var(--pc) 48%, var(--line)) !important;
    box-shadow:
      inset 0 1px 0 color-mix(in srgb, #fff 18%, transparent),
      inset 0 0 0 1px color-mix(in srgb, var(--pc) 16%, transparent),
      0 30px 64px -28px color-mix(in srgb, var(--pc) 72%, #000),
      0 0 0 1px color-mix(in srgb, var(--pc) 22%, transparent) !important;
  }

  .study-face::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0;
    background: linear-gradient(105deg, transparent 40%, color-mix(in srgb, #fff 26%, transparent) 50%, transparent 60%);
    background-size: 260% 100%;
    background-position: 160% 0;
  }
  .study-flip:hover .study-face::after { animation: study-sheen 760ms var(--ease); }
  @keyframes study-sheen {
    0% { background-position: 160% 0; opacity: 0; }
    20% { opacity: 1; }
    100% { background-position: -60% 0; opacity: 0; }
  }

  @media (prefers-reduced-motion: reduce) {
    .study-flip:hover { transform: none; }
    .study-flip:hover .study-face::after { animation: none; }
  }
}

/* Grouped sidebar navigation and its inline mobile subsection colors. */
#nav-list > .nav-group-divider {
  min-height: 0 !important;
  margin: 10px 10px 2px !important;
  padding: 14px 0 6px !important;
  border: 0 !important;
  border-top: 1px solid color-mix(in srgb, var(--line) 76%, transparent) !important;
  border-radius: 0 !important;
  color: var(--muted-2) !important;
  background: transparent !important;
  box-shadow: none !important;
  font-size: 0.72rem !important;
  font-weight: 800 !important;
  letter-spacing: 0.14em !important;
  line-height: 1.2 !important;
  text-transform: uppercase !important;
  pointer-events: none;
}

#nav-list > .nav-group-divider:hover {
  color: var(--muted-2) !important;
  border-color: color-mix(in srgb, var(--line) 76%, transparent) !important;
  background: transparent !important;
}

/* Preserve the parent page accent while its mobile subsection menu is previewed. */
#nav-list li[data-page="Review"] + #sidebar-subnav-wrap #sidebar-subnav li {
  --item-color: var(--tone-violet);
  --item-soft: var(--tone-violet-soft);
}

#nav-list li[data-page="Notes"] + #sidebar-subnav-wrap #sidebar-subnav li {
  --item-color: var(--tone-amber);
  --item-soft: var(--tone-amber-soft);
}

#nav-list li[data-page="Music"] + #sidebar-subnav-wrap #sidebar-subnav li {
  --item-color: var(--tone-rose);
  --item-soft: var(--tone-rose-soft);
}

#nav-list li[data-page="Grammar"] + #sidebar-subnav-wrap #sidebar-subnav li {
  --item-color: var(--tone-indigo);
  --item-soft: var(--tone-indigo-soft);
}

@media (max-width: 930px) {
  #nav-list > li.has-inline-submenu {
    background: linear-gradient(90deg, color-mix(in srgb, var(--item-soft) 72%, transparent), transparent) !important;
    border-color: color-mix(in srgb, var(--item-color) 38%, var(--line)) !important;
  }

  #nav-list > #sidebar-subnav-wrap:not(.hidden) {
    display: block !important;
    min-height: 0 !important;
    width: 100% !important;
    margin: -3px 0 5px !important;
    padding: 3px 8px 2px 30px !important;
    border: 0 !important;
    border-radius: 0 !important;
    color: inherit !important;
    background: transparent !important;
    box-shadow: none !important;
    transform: none !important;
  }

  #nav-list > #sidebar-subnav-wrap:not(.hidden):hover {
    border: 0 !important;
    background: transparent !important;
    transform: none !important;
  }

  #sidebar-subnav {
    gap: 2px !important;
    padding: 0 !important;
    border: 0 !important;
  }

  #sidebar-subnav li {
    min-height: 36px !important;
    width: 100% !important;
    padding: 8px 11px !important;
    border: 1px solid transparent !important;
    border-radius: 10px !important;
    font-size: 0.82rem !important;
    background: transparent !important;
  }

  #sidebar-subnav li::before {
    display: none !important;
  }

  #sidebar-subnav li:hover,
  #sidebar-subnav li:focus-visible {
    background: color-mix(in srgb, var(--item-soft) 70%, transparent) !important;
    border-color: transparent !important;
  }

  #sidebar-subnav li.active {
    background: color-mix(in srgb, var(--item-soft) 92%, transparent) !important;
    border-color: color-mix(in srgb, var(--item-color) 45%, var(--line)) !important;
    box-shadow: none !important;
  }

  :root[dir="rtl"] #nav-list > #sidebar-subnav-wrap:not(.hidden) {
    padding: 3px 30px 2px 8px !important;
  }

  :root[dir="rtl"] #sidebar-subnav li,
  :root[dir="rtl"] #sidebar-subnav li.active {
    padding: 8px 11px !important;
  }
}

@keyframes home-hero-icon-float {
  from { translate: 0 -3px; }
  to { translate: 0 5px; }
}

/* Dictionary presenters remain shared with Cards and Study Tools. */

.dict-tool-copy {
  margin: 5px 0 13px;
}

.dict-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 8px 4px 18px;
}

.dict-word {
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 900;
  letter-spacing: -.045em;
  line-height: 1;
}

.dict-word-line {
  display: flex;
  align-items: center;
  gap: 12px;
}

.dict-phonetics {
  margin-top: 9px;
  color: var(--muted);
  font-size: .9rem;
}

.dict-result-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
}

.dict-result-meta .btn {
  min-height: 34px;
  padding: 7px 10px;
}

.dict-meanings-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.dict-meanings-head b {
  display: block;
  margin-top: 2px;
}

.dict-result-language {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dict-result-language > span {
  color: var(--muted);
  font-size: .75rem;
  font-weight: 800;
}

.dict-language-switch {
  display: inline-flex;
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface-muted);
}

.dict-language-switch button {
  min-height: 32px;
  padding: 5px 11px;
  border: 0;
  border-radius: 8px;
  color: var(--muted);
  background: transparent;
  font: inherit;
  font-size: .78rem;
  font-weight: 850;
  cursor: pointer;
}

.dict-language-switch button:hover:not(:disabled),
.dict-language-switch button.active {
  color: var(--text);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.dict-language-switch button.active {
  color: var(--page-color);
}

.dict-language-switch button:disabled {
  cursor: wait;
  opacity: .65;
}

.dict-result-translation-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
}

.dict-result-translation-status .spinner {
  width: 16px;
  height: 16px;
}

.dict-meanings {
  display: grid;
  gap: 14px;
}

.dict-meaning-group {
  min-width: 0;
}

.dict-meaning-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.dict-meaning-heading > span:last-child {
  color: var(--muted);
  font-size: .75rem;
}

.dict-pos {
  display: inline-flex;
  width: fit-content;
  padding: 5px 9px;
  border: 1px solid color-mix(in srgb, var(--page-color) 34%, var(--line));
  border-radius: 999px;
  color: var(--page-color);
  background: color-mix(in srgb, var(--page-color) 9%, transparent);
  font-size: .75rem;
  font-weight: 900;
  text-transform: capitalize;
}

.dict-definition-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.dict-definition-card {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-muted);
}

.dict-definition-number {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  color: var(--page-color);
  background: color-mix(in srgb, var(--page-color) 12%, transparent);
  font-weight: 900;
}

.dict-definition-content {
  min-width: 0;
}

.dict-definition-text {
  margin: 3px 0 12px;
  font-size: .98rem;
  font-weight: 750;
  line-height: 1.55;
}

.dict-definition-text-fa {
  text-align: right;
  font-family: Tahoma, "Segoe UI", sans-serif;
  font-size: 1.04rem;
  line-height: 1.8;
}

.dict-example {
  margin-bottom: 10px;
  padding: 9px 11px;
  border-inline-start: 3px solid var(--page-color);
  border-radius: 0 9px 9px 0;
  background: color-mix(in srgb, var(--page-color) 6%, transparent);
}

.dict-example span,
.dict-word-relations > div > span {
  color: var(--muted);
  font-size: .68rem;
  font-weight: 900;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.dict-example p {
  margin: 3px 0 0;
  color: var(--muted);
  font-style: italic;
  line-height: 1.45;
}

.dict-word-relations {
  display: grid;
  gap: 8px;
}

.dict-word-relations .chip-row {
  gap: 5px;
  margin-top: 4px;
}

.dict-word-relations .chip {
  padding: 4px 7px;
  font-size: .72rem;
}

.dict-definition-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 12px;
}

.dict-definition-actions .btn {
  min-height: 34px;
  padding: 7px 10px;
  font-size: .75rem;
}

@media (max-width: 1180px) {
  .dict-definition-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .dict-head {
    align-items: stretch;
    flex-direction: column;
  }

  .dict-result-meta {
    justify-content: flex-start;
  }

  .dict-meanings-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .dict-result-language {
    width: 100%;
    justify-content: space-between;
  }

}

/* Shared Study Tools switcher for content workspaces. */
.study-tools {
  margin-top: 20px;
  padding: 16px;
  overflow: visible;
  border: 1px solid color-mix(in srgb, var(--page-color) 34%, var(--line));
  border-radius: 20px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--page-color) 8%, transparent), transparent 44%),
    color-mix(in srgb, var(--surface) 96%, transparent);
  box-shadow: 0 14px 34px color-mix(in srgb, #000 14%, transparent);
}

.study-tools-header {
  display: grid;
  grid-template-columns: minmax(170px, 220px) minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.study-tools-heading .eyebrow,
.study-tools-heading b {
  display: block;
}

.study-tools-heading b {
  margin-top: 4px;
  font-size: .98rem;
}

.study-tools-tabs {
  display: grid;
  grid-template-columns: repeat(var(--study-tool-count, 3), minmax(0, 1fr));
  gap: 4px;
  min-width: 0;
  padding: 5px;
  border: 1px solid color-mix(in srgb, var(--line) 82%, var(--page-color));
  border-radius: 17px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface-2) 88%, transparent), color-mix(in srgb, var(--surface) 94%, transparent));
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, #fff 4%, transparent),
    inset 0 0 0 1px color-mix(in srgb, #000 6%, transparent);
}

.study-tool-tab {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 0;
  min-height: 52px;
  padding: 9px 10px 11px;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 12px;
  color: var(--muted);
  background: transparent;
  font: inherit;
  font-weight: 800;
  font-size: clamp(.76rem, .78vw, .9rem);
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  isolation: isolate;
  transition: border-color .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
}

.study-tool-tab::after {
  content: "";
  position: absolute;
  right: 22%;
  bottom: 4px;
  left: 22%;
  height: 3px;
  border-radius: 999px;
  background: var(--page-color);
  box-shadow: 0 0 12px color-mix(in srgb, var(--page-color) 72%, transparent);
  opacity: 0;
  transform: scaleX(.55);
  transition: opacity .2s ease, transform .2s ease;
}

.study-tool-tab:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--page-color) 18%, transparent);
  background: color-mix(in srgb, var(--page-color) 7%, transparent);
}

.study-tool-tab.active {
  color: var(--text);
  border-color: color-mix(in srgb, var(--page-color) 52%, var(--line));
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--page-color) 19%, var(--surface-2)), color-mix(in srgb, var(--page-color) 10%, var(--surface)));
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, #fff 7%, transparent),
    0 7px 18px color-mix(in srgb, var(--page-color) 13%, transparent);
}

.study-tool-tab.active::after {
  opacity: 1;
  transform: scaleX(1);
}

.study-tool-tab:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--page-color) 38%, transparent);
  outline-offset: 3px;
  z-index: 1;
}

.study-tool-tab .feature-icon {
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  opacity: .78;
  filter: saturate(.78);
  transition: opacity .2s ease, filter .2s ease, transform .2s ease;
}

.study-tool-tab:hover .feature-icon,
.study-tool-tab.active .feature-icon {
  opacity: 1;
  filter: saturate(1.08) drop-shadow(0 3px 7px color-mix(in srgb, var(--page-color) 28%, transparent));
}

.study-tool-tab.active .feature-icon {
  transform: translateY(-1px) scale(1.04);
}

.study-tool-tab span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.study-tools-picker {
  display: none;
  min-width: 0;
}

.study-tools-picker .select,
.study-tools-picker .custom-select {
  width: 100%;
}

.study-tools-panel {
  min-width: 0;
  padding-top: 16px;
  animation: study-tool-panel-in .22s ease both;
}

.study-tools-panel > .feature-section-title:first-child {
  margin-top: 0;
}

.study-tools-search {
  margin-top: 14px;
}

.study-tools-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.study-dictionary-search {
  margin-top: 12px;
}

.study-dictionary-results {
  margin-top: 16px;
}

.study-dictionary-empty {
  min-height: 170px;
}

.study-dictionary-result .dict-head {
  padding-inline: 0;
}

@keyframes study-tool-panel-in {
  from {
    opacity: 0;
    transform: translateY(5px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1050px) and (min-width: 761px) {
  .study-tools-header {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .study-tools-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
  }

  .study-tools-heading b {
    margin-top: 0;
  }
}

@media (max-width: 760px) {
  .study-tools {
    margin-top: 16px;
    padding: 14px;
    border-radius: 18px;
  }

  .study-tools-header {
    grid-template-columns: minmax(104px, auto) minmax(170px, 1fr);
    gap: 12px;
  }

  .study-tools-heading {
    display: block;
  }

  .study-tools-tabs {
    display: none;
  }

  .study-tools-picker {
    display: block;
  }

  .study-tools-picker .custom-select-button {
    min-height: 48px;
    border-radius: 12px;
  }

  .study-tools-picker .custom-select-menu {
    width: 100%;
    min-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .study-tool-tab,
  .study-tool-tab::after,
  .study-tool-tab .feature-icon {
    transition: none;
  }

  .study-tools-panel {
    animation: none;
  }
}

@media (max-width: 420px) {
  .study-tools-header {
    grid-template-columns: 1fr;
    align-items: stretch;
  }
}