/* ═══════════════════════════════════════════════════════════════════════
   Design System Builder v3 — App Chrome Styles
   App UI uses --app-* variables; token preview uses var(--token-name)
   ═══════════════════════════════════════════════════════════════════════ */

/* ── Google Fonts fallback ── */
@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700&family=Geist+Mono:wght@400;500&display=swap');

/* ══════════════════════════════════════════════
   1. APP-LEVEL CSS CUSTOM PROPERTIES
   ══════════════════════════════════════════════ */

:root {
  /* Fonts — Geist family only */
  --app-font-sans: 'Geist', system-ui, -apple-system, sans-serif;
  --app-font-mono: 'Geist Mono', 'Courier New', monospace;
  --app-font-display: 'Geist', system-ui, -apple-system, sans-serif;

  /* Layout */
  --app-header-h: 48px;
  --app-nav-w: 220px;
  --app-editor-w: 320px;
  --app-css-panel-normal: 220px;
  --app-css-panel-collapsed: 36px;
  --app-radius: 6px;
  --app-radius-sm: 4px;
  --app-radius-lg: 10px;

  /* Transitions */
  --app-trans-fast: 120ms cubic-bezier(0.4, 0, 0.2, 1);
  --app-trans-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --app-trans-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Dark theme (default) — Geist dark palette */
[data-theme="dark"] {
  --app-bg:            #000000;
  --app-panel:         #111111;
  --app-elevated:      #1a1a1a;
  --app-elevated-2:    #222222;
  --app-border:        #2a2a2a;
  --app-border-subtle: #1a1a1a;
  --app-text:          #ededed;
  --app-text-muted:    #8f8f8f;
  --app-text-subtle:   #5c5c5c;
  --app-accent:        #3291ff;
  --app-accent-dim:    rgba(50, 145, 255, 0.1);
  --app-accent-text:   #ffffff;
  --app-danger:        #ef4444;
  --app-danger-dim:    rgba(239, 68, 68, 0.1);
  --app-success:       #22c55e;
  --app-warning:       #f59e0b;
  --app-info:          #3b82f6;
  --app-noise-opacity: 0.02;
  color-scheme: dark;
}

/* Light theme — Geist light palette */
[data-theme="light"] {
  --app-bg:            #ffffff;
  --app-panel:         #fafafa;
  --app-elevated:      #f5f5f5;
  --app-elevated-2:    #ebebeb;
  --app-border:        #e0e0e0;
  --app-border-subtle: #f5f5f5;
  --app-text:          #171717;
  --app-text-muted:    #737373;
  --app-text-subtle:   #a3a3a3;
  --app-accent:        #0070f3;
  --app-accent-dim:    rgba(0, 112, 243, 0.08);
  --app-accent-text:   #ffffff;
  --app-danger:        #e00;
  --app-danger-dim:    rgba(238, 0, 0, 0.08);
  --app-success:       #16a34a;
  --app-warning:       #d97706;
  --app-info:          #0070f3;
  --app-noise-opacity: 0.012;
  color-scheme: light;
}

/* ══════════════════════════════════════════════
   2. RESET & BASE
   ══════════════════════════════════════════════ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  height: 100dvh;
}

body {
  font-family: var(--app-font-sans);
  font-size: 13px;
  line-height: 1.5;
  color: var(--app-text);
  background: var(--app-bg);
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

ul, ol { list-style: none; }

/* ══════════════════════════════════════════════
   3. HEADER
   ══════════════════════════════════════════════ */

.app-header {
  background: var(--app-panel);
  border-bottom: 1px solid var(--app-border);
  height: var(--app-header-h);
  padding: 0 16px;
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  z-index: 100;
}

.app-header__brand {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: inherit;
}

.app-header__logo {
  display: flex;
  flex-shrink: 0;
  align-items: center;
}

.app-header__title {
  font-size: 13px;
  color: var(--app-text);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.app-header__version {
  font-family: var(--app-font-mono);
  font-size: 10px;
  color: var(--app-accent);
  font-weight: 500;
  background: var(--app-accent-dim);
  border-radius: 3px;
  padding: 1px 5px;
}

.app-header__actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.app-header__group {
  display: flex;
  align-items: center;
  gap: 2px;
}

.app-header__sep {
  background: var(--app-border);
  width: 1px;
  height: 18px;
  margin: 0 6px;
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════
   4. SHARED BUTTONS
   ══════════════════════════════════════════════ */

.app-btn {
  font-size: 12px;
  color: var(--app-text-muted);
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--app-radius-sm);
  padding: 5px 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  position: relative;
  cursor: pointer;
  transition:
    background var(--app-trans-fast),
    border-color var(--app-trans-fast),
    color var(--app-trans-fast),
    opacity var(--app-trans-fast);
}

.app-btn:hover {
  color: var(--app-text);
  background: var(--app-elevated);
}

.app-btn:active {
  opacity: 0.8;
}

.app-btn:focus-visible {
  outline: 2px solid var(--app-accent);
  outline-offset: 2px;
}

.app-btn--icon {
  width: 28px;
  height: 28px;
  padding: 5px;
  justify-content: center;
}

.app-btn--ghost {
  color: var(--app-text-muted);
}

.app-btn--primary {
  color: var(--app-accent-text);
  background: var(--app-accent);
  border-color: var(--app-accent);
}

.app-btn--primary:hover {
  color: var(--app-accent-text);
  background: var(--app-accent);
  filter: brightness(1.1);
}

.app-btn--danger {
  color: #fff;
  background: var(--app-danger);
  border-color: var(--app-danger);
}

.app-btn--danger:hover {
  color: #fff;
  filter: brightness(1.1);
}

/* App-level tooltips via data-tooltip attribute */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 11px;
  font-family: var(--app-font-sans);
  font-weight: 400;
  color: var(--app-text);
  background: var(--app-panel);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-sm);
  padding: 4px 8px;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.12s ease, visibility 0.12s ease;
  z-index: 9999;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  /* default: above */
  bottom: calc(100% + 7px);
  top: auto;
}

/* Below — centred */
[data-tooltip][data-tooltip-pos="below"]::after {
  top: calc(100% + 7px);
  bottom: auto;
}

/* Below — right-aligned (for buttons near right edge) */
[data-tooltip][data-tooltip-pos="below-left"]::after {
  top: calc(100% + 7px);
  bottom: auto;
  left: auto;
  right: 0;
  transform: none;
}

[data-tooltip]:hover::after,
[data-tooltip]:focus-visible::after {
  opacity: 1;
  visibility: visible;
}

.app-badge {
  font-size: 9px;
  color: var(--app-accent-text);
  font-weight: 700;
  line-height: 1;
  background: var(--app-accent);
  border-radius: 50%;
  width: 14px;
  height: 14px;
  display: none;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 2px;
  right: 2px;
}

.app-badge:not(:empty) {
  display: flex;
}

/* ══════════════════════════════════════════════
   5. MAIN LAYOUT
   ══════════════════════════════════════════════ */

.app-layout {
  min-height: 0;
  flex: 1;
  display: grid;
  grid-template-columns: var(--app-nav-w) 1fr var(--app-editor-w);
  grid-template-rows: 1fr;
  overflow: hidden;
}

/* ══════════════════════════════════════════════
   6. LEFT NAV
   ══════════════════════════════════════════════ */

.app-nav {
  background: var(--app-panel);
  border-right: 1px solid var(--app-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.app-nav__scroll {
  flex: 1;
  padding: 12px 8px 20px;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--app-border) transparent;
}

.app-nav__scroll::-webkit-scrollbar { width: 4px; }
.app-nav__scroll::-webkit-scrollbar-track { background: transparent; }
.app-nav__scroll::-webkit-scrollbar-thumb { background: var(--app-border); border-radius: 4px; }

.nav-footer {
  border-top: 1px solid var(--app-border);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.nav-footer__text {
  font-size: 0.6875rem;
  color: var(--app-text-subtle);
}

.nav-footer__link {
  font-size: 0.6875rem;
  color: var(--accent, #0070f3);
  text-decoration: none;
  transition: opacity 0.15s;
}

.nav-footer__link:hover {
  opacity: 0.8;
}

.nav-footer__sep {
  display: none;
}

.nav-footer__dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--app-text-subtle);
  flex-shrink: 0;
}

.nav-group {
  margin-bottom: 4px;
}

.nav-group + .nav-group {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--app-border-subtle);
}

.nav-group__label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--app-text-subtle);
  display: block;
  padding: 4px 8px;
  margin-bottom: 2px;
}

.nav-item {
  font-size: 12.5px;
  color: var(--app-text-muted);
  border-radius: var(--app-radius-sm);
  border-left: 2px solid transparent;
  padding: 6px 8px;
  display: flex;
  align-items: center;
  gap: 7px;
  position: relative;
  cursor: pointer;
  transition:
    color var(--app-trans-fast),
    background var(--app-trans-fast);
}

.nav-item:hover {
  color: var(--app-text);
  background: var(--app-elevated);
}

.nav-item.is-active {
  font-weight: 500;
  color: var(--app-accent);
  background: var(--app-accent-dim);
  border-left-color: var(--app-accent);
}

.nav-item:focus-visible {
  outline: 2px solid var(--app-accent);
  outline-offset: -2px;
}

.nav-item__icon {
  flex-shrink: 0;
  opacity: 0.6;
}

.nav-modified-dot {
  background: var(--app-accent);
  border-radius: 50%;
  width: 5px;
  height: 5px;
  display: none;
  flex-shrink: 0;
  margin-left: auto;
}

.nav-modified-dot.is-visible {
  display: block;
}

/* ══════════════════════════════════════════════
   7. CENTER PREVIEW
   ══════════════════════════════════════════════ */

.app-preview {
  overflow-y: auto;
  overflow-x: clip;
  position: relative;
  background: var(--app-bg);
  scrollbar-width: thin;
  scrollbar-color: var(--app-border) transparent;
}

.app-preview::-webkit-scrollbar { width: 6px; }
.app-preview::-webkit-scrollbar-track { background: transparent; }
.app-preview::-webkit-scrollbar-thumb { background: var(--app-border); border-radius: 4px; }

.app-preview__noise {
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  opacity: var(--app-noise-opacity);
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.app-preview__inner {
  padding: 0;
  position: relative;
  z-index: 1;
}

/* ── Preview Section ── */
.preview-section {
  padding: 40px max(48px, calc((100% - 900px) / 2));
  border-bottom: 1px solid var(--app-border-subtle);
  scroll-margin-top: 8px;
}

.preview-section:last-child {
  border-bottom: none;
}

.preview-section__header {
  margin-bottom: 28px;
}

.preview-section__title-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.preview-section__title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--app-text-subtle);
  margin: 0 0 4px;
  line-height: 1;
}

.preview-section__class {
  font-family: var(--app-font-mono);
  font-size: 10px;
  color: var(--app-text-muted);
  opacity: 0.7;
  letter-spacing: 0;
  text-transform: none;
  font-weight: 400;
}

.preview-section__desc {
  font-size: 13px;
  color: var(--app-text-muted);
  line-height: 1.6;
}

/* ══════════════════════════════════════════════
   8. RIGHT EDITOR
   ══════════════════════════════════════════════ */

.app-editor {
  background: var(--app-panel);
  border-left: 1px solid var(--app-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.app-editor__header {
  padding: 12px 12px 8px;
  border-bottom: 1px solid var(--app-border);
  flex-shrink: 0;
}

.app-editor__title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.app-editor__section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--app-text);
}

.app-editor__search {
  color: var(--app-text-subtle);
  background: var(--app-elevated);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-sm);
  padding: 5px 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.app-editor__search input {
  font-size: 12px;
  color: var(--app-text);
  background: none;
  border: none;
  min-width: 0;
  flex: 1;
  outline: none;
}

.app-editor__search input::placeholder {
  color: var(--app-text-subtle);
}

.app-editor__tokens {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--app-border) transparent;
}

.app-editor__tokens::-webkit-scrollbar { width: 4px; }
.app-editor__tokens::-webkit-scrollbar-track { background: transparent; }
.app-editor__tokens::-webkit-scrollbar-thumb { background: var(--app-border); border-radius: 4px; }

/* ── Token Row ── */
.token-section-header {
  font-size: 10px;
  color: var(--app-text-subtle);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--app-panel);
  border-bottom: 1px solid var(--app-border-subtle);
  padding: 10px 12px 6px;
  display: flex;
  align-items: center;
  gap: 6px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.token-count {
  font-family: var(--app-font-mono);
  font-size: 9px;
  color: var(--app-text-subtle);
  background: var(--app-elevated);
  border-radius: 3px;
  padding: 1px 4px;
}

.token-row {
  display: grid;
  grid-template-columns: 8px 1fr auto;
  align-items: start;
  gap: 6px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--app-border-subtle);
  transition: background var(--app-trans-fast);
}

.token-row:hover {
  background: var(--app-elevated);
}

.token-row.is-highlighted {
  animation: token-highlight 600ms ease-out;
}

@keyframes token-highlight {
  0% { background: var(--app-accent-dim); box-shadow: 0 0 0 1px var(--app-accent) inset; }
  100% { background: transparent; box-shadow: none; }
}

.token-row__indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--app-border);
  margin-top: 7px;
  flex-shrink: 0;
  transition: background var(--app-trans-fast);
}

.token-row__indicator.is-modified {
  background: var(--app-accent);
}

.token-row__body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.token-row__name {
  font-family: var(--app-font-mono);
  font-size: 11.5px;
  color: var(--app-text);
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}

.token-row__name-input {
  font-family: var(--app-font-mono);
  font-size: 11.5px;
  color: var(--app-text);
  font-weight: 500;
  background: none;
  outline: none;
  border: none;
  border-bottom: 1px solid transparent;
  padding: 0;
  width: 100%;
  transition: border-color var(--app-trans-fast);
}

.token-row__name-input:focus {
  border-bottom-color: var(--app-accent);
}

.token-row__value-row {
  display: flex;
  align-items: center;
  gap: 4px;
}

.token-swatch {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  border: 1px solid var(--app-border);
  flex-shrink: 0;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.token-swatch input[type="color"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  border: none;
  padding: 0;
}

.token-value-input {
  font-family: var(--app-font-mono);
  font-size: 11px;
  color: var(--app-text);
  background: var(--app-elevated);
  border: 1px solid var(--app-border);
  border-radius: 3px;
  padding: 3px 6px;
  min-width: 0;
  flex: 1;
  outline: none;
  transition: border-color var(--app-trans-fast);
}

.token-value-input:focus {
  border-color: var(--app-accent);
  background: var(--app-elevated-2);
}

.token-value-input.is-error {
  border-color: var(--app-danger);
}

.token-dark-toggle {
  font-size: 10px;
  color: var(--app-text-muted);
  background: var(--app-elevated);
  border: 1px solid var(--app-border);
  border-radius: 3px;
  height: auto;
  padding: 2px 5px;
  flex-shrink: 0;
  cursor: pointer;
  transition: all var(--app-trans-fast);
}

.token-dark-toggle:hover, .token-dark-toggle.is-active {
  border-color: var(--app-accent);
  color: var(--app-accent);
  background: var(--app-accent-dim);
}

.token-dark-row {
  display: flex;
  align-items: center;
  gap: 4px;
  padding-top: 2px;
}

.token-dark-label {
  font-size: 10px;
  color: var(--app-text-subtle);
  flex-shrink: 0;
}

.token-fluid-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}

.token-fluid-label {
  font-size: 10px;
  color: var(--app-text-subtle);
  display: block;
  margin-bottom: 2px;
}

.token-desc {
  font-size: 10.5px;
  color: var(--app-text-subtle);
  line-height: 1.4;
  font-style: italic;
}

.token-row__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding-top: 2px;
}

.token-action-btn {
  color: var(--app-text-subtle);
  background: none;
  border: none;
  border-radius: 3px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  cursor: pointer;
  transition: all var(--app-trans-fast);
  pointer-events: none;
}

.token-row:hover .token-action-btn {
  opacity: 1;
  pointer-events: auto;
}

.token-action-btn:hover {
  background: var(--app-elevated-2);
  color: var(--app-text);
}

.token-action-btn--danger:hover {
  background: var(--app-danger-dim);
  color: var(--app-danger);
}

.token-action-btn:disabled {
  opacity: 0.3 !important;
  cursor: not-allowed;
}

.token-action-btn:focus-visible {
  outline: 2px solid var(--app-accent);
  outline-offset: 1px;
}

.token-lock-icon {
  color: var(--app-text-subtle);
  opacity: 0.5;
}

/* Add token form */
.add-token-form {
  padding: 10px 12px;
  border-top: 1px solid var(--app-border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.add-token-form__title {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--app-text-subtle);
}

.add-token-form__fields {
  display: flex;
  gap: 4px;
}

.add-token-form input {
  font-family: var(--app-font-mono);
  font-size: 11.5px;
  color: var(--app-text);
  background: var(--app-elevated);
  border: 1px solid var(--app-border);
  border-radius: 3px;
  padding: 4px 6px;
  min-width: 0;
  flex: 1;
  outline: none;
  transition: border-color var(--app-trans-fast);
}

.add-token-form input:focus {
  border-color: var(--app-accent);
}

/* ══════════════════════════════════════════════
   9. CSS PANEL
   ══════════════════════════════════════════════ */

.css-panel {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--app-border);
  flex-shrink: 0;
  background: var(--app-panel);
  transition: height var(--app-trans-base);
}

.css-panel[data-state="normal"] {
  height: var(--app-css-panel-normal);
}

.css-panel[data-state="collapsed"] {
  height: var(--app-css-panel-collapsed);
}

.css-panel[data-state="maximized"] {
  position: fixed;
  bottom: 0;
  right: 0;
  width: var(--app-editor-w);
  height: calc(100dvh - var(--app-header-h));
  z-index: 50;
  border-top: 1px solid var(--app-border);
}

.css-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  height: 36px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--app-border);
  gap: 4px;
}

.css-panel__header-left {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.css-panel__header-right {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.css-panel__toggle-btn {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--app-text-muted);
  border-radius: 3px;
  flex-shrink: 0;
  transition: all var(--app-trans-fast);
}

.css-panel__toggle-btn:hover { color: var(--app-text); background: var(--app-elevated); }
.css-panel__toggle-btn:focus-visible { outline: 2px solid var(--app-accent); }

.css-chevron {
  transition: transform var(--app-trans-base);
}

.css-panel[data-state="collapsed"] .css-chevron {
  transform: rotate(180deg);
}

.css-panel__title {
  font-size: 11px;
  font-weight: 600;
  color: var(--app-text-muted);
  flex-shrink: 0;
}

.css-tabs {
  display: flex;
  gap: 2px;
  background: var(--app-elevated);
  padding: 2px;
  border-radius: 4px;
}

.css-tab {
  font-size: 10.5px;
  font-weight: 500;
  padding: 2px 8px;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  color: var(--app-text-muted);
  background: none;
  transition: all var(--app-trans-fast);
}

.css-tab:hover { color: var(--app-text); }

.css-tab--active {
  background: var(--app-panel);
  color: var(--app-text);
  box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.css-tab:focus-visible { outline: 2px solid var(--app-accent); }

.css-panel__body {
  flex: 1;
  overflow-y: auto;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--app-border) transparent;
}

.css-panel__body::-webkit-scrollbar { width: 4px; height: 4px; }
.css-panel__body::-webkit-scrollbar-thumb { background: var(--app-border); border-radius: 4px; }

.css-panel[data-state="collapsed"] .css-panel__body {
  display: none;
}

.css-panel__pre {
  font-family: var(--app-font-mono);
  font-size: 11px;
  line-height: 1.7;
  tab-size: 2;
  margin: 0;
  padding: 12px;
}

.css-panel__code {
  display: block;
  white-space: pre;
}

/* CSS syntax highlighting */
.css-prop { color: #52a8ff; }        /* Geist blue - property */
.css-val  { color: #ededed; }        /* near white - value */
.css-at   { color: #67e8f9; }        /* cyan - at-rule */
.css-sel  { color: #86efac; }        /* green - selector */
.css-cmt  { color: #5c5c5c; }        /* muted - comment */
.css-brace { color: var(--app-text-muted); }

[data-theme="light"] .css-prop { color: #0070f3; }
[data-theme="light"] .css-val  { color: #171717; }
[data-theme="light"] .css-at   { color: #0369a1; }
[data-theme="light"] .css-sel  { color: #15803d; }
[data-theme="light"] .css-cmt  { color: #a3a3a3; }

/* ══════════════════════════════════════════════
   10. SETTINGS POPOVER
   ══════════════════════════════════════════════ */

.popover-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
}

.popover {
  position: fixed;
  top: calc(var(--app-header-h) + 6px);
  right: 16px;
  width: 300px;
  background: var(--app-elevated);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-lg);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 4px 8px rgba(0,0,0,0.3);
  z-index: 201;
  overflow: hidden;
  animation: popover-in 160ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes popover-in {
  from { opacity: 0; transform: translateY(-8px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.popover[hidden] { display: none; }

.popover__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--app-border);
}

.popover__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--app-text);
}

.popover__body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.setting-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--app-text);
}

.setting-sublabel {
  font-size: 11px;
  color: var(--app-text-muted);
  display: block;
  margin-bottom: 3px;
}

.setting-hint {
  font-size: 11px;
  color: var(--app-text-subtle);
  line-height: 1.5;
}

.setting-input {
  font-size: 12px;
  color: var(--app-text);
  background: var(--app-panel);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-sm);
  padding: 6px 8px;
  width: 100%;
  outline: none;
  transition: border-color var(--app-trans-fast);
}

.setting-input:focus { border-color: var(--app-accent); }

.setting-segmented {
  display: flex;
  background: var(--app-panel);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-sm);
  padding: 2px;
  gap: 2px;
}

.setting-seg-btn {
  flex: 1;
  text-align: center;
  cursor: pointer;
}

.setting-seg-btn input { position: absolute; opacity: 0; pointer-events: none; }

.setting-seg-btn span {
  font-size: 12px;
  color: var(--app-text-muted);
  font-weight: 500;
  border-radius: 3px;
  padding: 4px 8px;
  display: block;
  transition: all var(--app-trans-fast);
}

.setting-seg-btn:has(input:checked) span {
  background: var(--app-elevated);
  color: var(--app-text);
  box-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.setting-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.setting-field { display: flex; flex-direction: column; }

.setting-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--app-text-muted);
  cursor: pointer;
}

.setting-checkbox input {
  width: 14px;
  height: 14px;
  cursor: pointer;
  accent-color: var(--app-accent);
}

/* ══════════════════════════════════════════════
   11. COMMAND PALETTE
   ══════════════════════════════════════════════ */

.cmd-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 300;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
}

.cmd-overlay[hidden] { display: none; }

.cmd-palette {
  width: 540px;
  max-width: 90vw;
  background: var(--app-elevated);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-lg);
  box-shadow: 0 25px 60px rgba(0,0,0,0.5);
  overflow: hidden;
  animation: cmd-in 160ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes cmd-in {
  from { opacity: 0; transform: translateY(-16px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.cmd-palette__search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--app-border);
  color: var(--app-text-subtle);
}

.cmd-palette__input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-size: 14px;
  color: var(--app-text);
  font-family: var(--app-font-sans);
}

.cmd-palette__input::placeholder {
  color: var(--app-text-subtle);
}

.cmd-palette__search kbd {
  font-family: var(--app-font-mono);
  font-size: 10px;
  background: var(--app-panel);
  border: 1px solid var(--app-border);
  border-radius: 3px;
  padding: 2px 5px;
  color: var(--app-text-muted);
  flex-shrink: 0;
}

.cmd-palette__results {
  max-height: 360px;
  overflow-y: auto;
  padding: 6px;
  scrollbar-width: thin;
  scrollbar-color: var(--app-border) transparent;
}

.cmd-result {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--app-radius-sm);
  cursor: pointer;
  transition: background var(--app-trans-fast);
}

.cmd-result:hover, .cmd-result.is-focused {
  background: var(--app-accent-dim);
}

.cmd-result:focus-visible {
  outline: 2px solid var(--app-accent);
  outline-offset: -2px;
}

.cmd-result__type {
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--app-text-subtle);
  background: var(--app-panel);
  border: 1px solid var(--app-border);
  border-radius: 3px;
  padding: 1px 4px;
  flex-shrink: 0;
}

.cmd-result__name {
  font-size: 13px;
  font-weight: 500;
  color: var(--app-text);
  flex: 1;
}

.cmd-result__sub {
  font-size: 11px;
  color: var(--app-text-subtle);
  font-family: var(--app-font-mono);
}

/* ══════════════════════════════════════════════
   12. MODALS
   ══════════════════════════════════════════════ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(2px);
  z-index: 400;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-overlay[hidden] { display: none; }

.modal {
  background: var(--app-elevated);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-lg);
  width: 360px;
  max-width: 90vw;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
  animation: modal-in 160ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modal-in {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

.modal__header {
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--app-border);
}

.modal__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--app-text);
}

.modal__body {
  padding: 16px 20px;
}

.modal__body p {
  font-size: 13px;
  color: var(--app-text-muted);
  line-height: 1.6;
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 20px 16px;
}

/* ══════════════════════════════════════════════
   13. TOAST
   ══════════════════════════════════════════════ */

.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--app-elevated);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  font-size: 12.5px;
  color: var(--app-text);
  pointer-events: auto;
  animation: toast-in 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
  max-width: 320px;
}

.toast.is-leaving {
  animation: toast-out 200ms ease-in forwards;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toast-out {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(4px); }
}

.toast__icon {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toast--success .toast__icon { color: var(--app-success); }
.toast--error   .toast__icon { color: var(--app-danger); }
.toast--warning .toast__icon { color: var(--app-warning); }
.toast--info    .toast__icon { color: var(--app-info); }

/* ══════════════════════════════════════════════
   14. PREVIEW SECTION STYLES
   These styles use token CSS custom properties
   ══════════════════════════════════════════════ */

/* Getting started hero */
.preview-hero {
  position: relative;
  padding: 48px 0 40px;
}

.preview-hero__gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 60% at 10% 40%, rgba(255,255,255,0.02) 0%, transparent 70%);
  pointer-events: none;
}

.preview-hero__eyebrow {
  font-family: var(--app-font-mono);
  font-size: var(--fs-xs, 0.75rem);
  color: var(--app-text-muted);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.preview-hero__title {
  font-family: var(--app-font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--fg-base, #ededed);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.preview-hero__title em {
  font-style: italic;
  display: inline-block;
  padding-right: 0.12em;
  background: linear-gradient(135deg, var(--accent, #3291ff), var(--brand-700, #52a8ff));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.preview-hero__desc {
  font-size: var(--fs-base, 1rem);
  color: var(--fg-muted, #8f8f8f);
  line-height: var(--leading-relaxed, 1.625);
  max-width: 520px;
  margin-bottom: 32px;
}

.preview-hero__steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.preview-hero__step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.preview-hero__step-num {
  font-family: var(--app-font-mono);
  font-size: var(--fs-xs, 0.75rem);
  color: var(--accent-fg, #fff);
  font-weight: 700;
  background: var(--accent, #3291ff);
  border-radius: var(--r-full, 9999px);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.preview-hero__step-text {
  font-size: var(--fs-sm, 0.875rem);
  color: var(--fg-base, #ededed);
  line-height: var(--leading-normal, 1.5);
  padding-top: 3px;
}

.shortcut-table {
  margin-top: 32px;
  border: 1px solid var(--border-base, #2a2a2a);
  border-radius: var(--r-lg, 0.5rem);
  overflow: hidden;
  font-size: var(--fs-sm, 0.875rem);
}

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

.shortcut-table th {
  font-size: var(--fs-xs, 0.75rem);
  color: var(--fg-muted, #8f8f8f);
  font-weight: 600;
  text-align: left;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--bg-elevated, #1a1a1a);
  border-bottom: 1px solid var(--border-base, #2a2a2a);
  padding: 8px 14px;
}

.shortcut-table td {
  color: var(--fg-base, #ededed);
  border-bottom: 1px solid var(--border-base, #2a2a2a);
  padding: 8px 14px;
}

.shortcut-table tr:last-child td { border-bottom: none; }

.shortcut-table kbd {
  font-family: var(--app-font-mono);
  font-size: 11px;
  color: var(--fg-muted, #8f8f8f);
  background: var(--bg-elevated, #1a1a1a);
  border: 1px solid var(--border-base, #2a2a2a);
  border-radius: 4px;
  padding: 2px 6px;
}

/* Getting Started — controls grid */
.gs-controls {
  margin-top: 32px;
}

.gs-controls__heading {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted, #8f8f8f);
  margin-bottom: 16px;
}

.gs-controls__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 8px;
}

.gs-control-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  border-radius: var(--r-md, 8px);
  background: var(--bg-elevated, #111);
  border: 1px solid var(--border-base, #2a2a2a);
}

.gs-control-item__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--r-sm, 6px);
  background: var(--bg-surface, #1a1a1a);
  border: 1px solid var(--border-base, #2a2a2a);
  flex-shrink: 0;
  color: var(--fg-muted, #8f8f8f);
}

.gs-control-item__label {
  font-size: 13px;
  font-weight: 600;
  color: var(--fg-base, #ededed);
  margin-bottom: 3px;
}

.gs-control-item__desc {
  font-size: 12px;
  color: var(--fg-muted, #8f8f8f);
  line-height: 1.6;
}

.gs-control-item__desc kbd {
  font-family: var(--app-font-mono);
  font-size: 10px;
  color: var(--fg-muted, #8f8f8f);
  background: var(--bg-surface, #1a1a1a);
  border: 1px solid var(--border-base, #2a2a2a);
  border-radius: 3px;
  padding: 1px 5px;
}

/* Colour swatches */
.color-scale-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.color-scale-row {
  display: grid;
  grid-template-columns: 56px 1fr;
  align-items: start;
  gap: 14px;
}

.color-scale-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--fg-muted, #8f8f8f);
  padding-top: 10px;
  white-space: nowrap;
}

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

.color-scale-swatches {
  display: flex;
  border-radius: var(--r-md, 0.375rem);
  overflow: hidden;
}

.color-scale-swatch {
  flex: 1;
  height: 36px;
  cursor: default;
  min-width: 0;
}

.color-scale-steps {
  display: flex;
}

.color-scale-step {
  flex: 1;
  font-family: var(--app-font-mono);
  font-size: 8.5px;
  color: var(--fg-subtle, #5c5c5c);
  text-align: center;
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}


.swatch-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted, #8f8f8f);
  margin-bottom: 8px;
  margin-top: 16px;
}

.swatch-section-title:first-child { margin-top: 0; }


/* Type scale */
.type-scale-item {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-base, #2a2a2a);
}

.type-scale-item:last-child { border-bottom: none; }

.type-scale-item__sample {
  flex: 1;
  color: var(--fg-base, #ededed);
  line-height: 1.3;
  min-width: 0;
}

.type-scale-item__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  flex-shrink: 0;
}

.type-scale-item__token {
  font-family: var(--app-font-mono);
  font-size: 10.5px;
  color: var(--accent, #3291ff);
}

.type-scale-item__value {
  font-family: var(--app-font-mono);
  font-size: 10.5px;
  color: var(--fg-muted, #8f8f8f);
}

/* Spacing scale */
.spacing-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
}

.spacing-item__bar-wrap {
  flex: 1;
  height: 20px;
  display: flex;
  align-items: center;
}

.spacing-item__bar {
  background: var(--accent, #3291ff);
  opacity: 0.6;
  border-radius: 2px;
  height: 8px;
  min-width: 2px;
}

.spacing-item__label {
  font-family: var(--app-font-mono);
  font-size: 10.5px;
  color: var(--accent, #3291ff);
  min-width: 80px;
}

.spacing-item__value {
  font-family: var(--app-font-mono);
  font-size: 10.5px;
  color: var(--fg-muted, #8f8f8f);
  min-width: 60px;
  text-align: right;
}

.spacing-item__square {
  width: 20px;
  height: 20px;
  background: var(--accent-bg, rgba(124,58,237,0.12));
  border: 1px solid var(--accent, #3291ff);
  border-radius: 2px;
  flex-shrink: 0;
}

/* Radius grid */
/* Radius strip */
.radius-strip {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.radius-strip__shapes {
  display: flex;
  gap: 0;
}

.radius-strip__shape {
  width: 72px;
  height: 72px;
  flex-shrink: 0;
  background: var(--bg-elevated, #1a1a1a);
  border: 1px solid var(--border-base, #2a2a2a);
  margin-right: 16px;
}

.radius-strip__shape:last-child {
  margin-right: 0;
}

.radius-strip__labels {
  display: flex;
}

.radius-strip__label {
  width: 72px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-right: 16px;
}

.radius-strip__label:last-child {
  margin-right: 0;
}

.radius-strip__name {
  font-family: var(--app-font-mono);
  font-size: 10px;
  color: var(--fg-base, #ededed);
}

.radius-strip__value {
  font-family: var(--app-font-mono);
  font-size: 9.5px;
  color: var(--fg-subtle, #5c5c5c);
}

/* Shadow stage — forced light surface so shadows are always visible */
.shadow-stage {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  background: var(--bg-base, #000000);
  border: 1px solid var(--border-base, #2a2a2a);
  border-radius: var(--r-xl, 0.75rem);
  padding: 32px 28px;
}

.shadow-card {
  background: var(--bg-surface, #111111);
  border-radius: var(--r-lg, 0.5rem);
  width: 100px;
  height: 80px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 10px;
}

.shadow-card__name {
  font-family: var(--app-font-mono);
  font-size: 10px;
  color: var(--fg-subtle, #5c5c5c);
  letter-spacing: 0.02em;
}

/* Motion demo */
.motion-grid {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.motion-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.motion-item__box {
  background: var(--accent, #3291ff);
  border-radius: var(--r-md, 0.375rem);
  width: 40px;
  height: 40px;
  cursor: pointer;
}

.motion-item__box.is-animating {
  animation: motion-demo 600ms both;
}

@keyframes motion-demo {
  0% { transform: translateX(-30px); opacity: 0; }
  100% { transform: translateX(0); opacity: 1; }
}

.motion-item__label {
  font-family: var(--app-font-mono);
  font-size: 9.5px;
  color: var(--fg-muted, #8f8f8f);
  text-align: center;
  max-width: 80px;
}

/* Preview components - these use token CSS vars throughout */

/* Buttons */
.preview-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
  align-items: center;
}

.preview-btn-row-label {
  font-size: 11px;
  color: var(--fg-muted, #8f8f8f);
  margin-bottom: 6px;
  font-weight: 500;
}

/* All preview component styles use component token vars where available */
.btn {
  font-family: var(--app-font-sans);
  font-size: var(--btn-fs, 0.875rem);
  font-weight: var(--btn-fw, 500);
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--btn-br, 0.375rem);
  padding: var(--btn-py, 0.5rem) var(--btn-px, 1rem);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  transition:
    background var(--duration-150, 150ms) var(--ease-in-out, cubic-bezier(0.4,0,0.2,1)),
    border-color var(--duration-150, 150ms) var(--ease-in-out, cubic-bezier(0.4,0,0.2,1)),
    color var(--duration-150, 150ms) var(--ease-in-out, cubic-bezier(0.4,0,0.2,1));
}

.btn:focus-visible {
  outline: 2px solid var(--accent, #3291ff);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-sm {
  padding: var(--s-1, 0.25rem) var(--s-3, 0.75rem);
  font-size: var(--fs-xs, 0.75rem);
  border-radius: var(--r-base, 0.25rem);
}

.btn-lg {
  padding: var(--s-3, 0.75rem) var(--s-6, 1.5rem);
  font-size: var(--fs-base, 1rem);
  border-radius: var(--r-lg, 0.5rem);
}

.btn-primary {
  color: var(--btn-fg, #ffffff);
  background: var(--btn-bg, #3291ff);
  border-color: var(--btn-bd, #3291ff);
}
.btn-primary:hover:not(:disabled) {
  filter: brightness(1.1);
}
.btn-primary:active:not(:disabled) {
  filter: brightness(0.95);
}

.btn-secondary {
  color: var(--btn-sec-fg, #ededed);
  background: var(--btn-sec-bg, #1a1a1a);
  border-color: var(--btn-sec-bd, #2a2a2a);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--bg-hover, #222222);
  border-color: var(--border-strong, #3d3d3d);
}

.btn-ghost {
  color: var(--fg-muted, #8f8f8f);
  background: transparent;
  border-color: transparent;
}
.btn-ghost:hover:not(:disabled) {
  background: var(--bg-hover, #222222);
  color: var(--fg-base, #ededed);
}

.btn-danger {
  color: #fff;
  background: var(--status-error, #ef4444);
  border-color: var(--status-error, #ef4444);
}
.btn-danger:hover:not(:disabled) {
  filter: brightness(1.1);
}

/* Input */
.input {
  font-family: var(--app-font-sans);
  font-size: var(--input-fs, 0.875rem);
  color: var(--input-fg, #ededed);
  line-height: var(--leading-normal, 1.5);
  background: var(--input-bg, #111111);
  border: 1px solid var(--input-bd, #2a2a2a);
  border-radius: var(--input-br, 0.375rem);
  padding: var(--input-py, 0.5rem) var(--input-px, 0.75rem);
  width: 100%;
  display: block;
  outline: none;
  transition:
    border-color var(--duration-150, 150ms) var(--ease-in-out, cubic-bezier(0.4,0,0.2,1)),
    box-shadow var(--duration-150, 150ms) var(--ease-in-out, cubic-bezier(0.4,0,0.2,1));
}

.input::placeholder {
  color: var(--input-ph, #5c5c5c);
}

.input:focus {
  border-color: var(--input-bd-focus, #3291ff);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--input-bd-focus, #3291ff) 20%, transparent);
}

.input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: var(--bg-elevated, #1a1a1a);
}

.input-error {
  border-color: var(--status-error, #ef4444) !important;
}

.input-error:focus {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--status-error, #ef4444) 20%, transparent) !important;
}

.select {
  font-family: var(--app-font-sans);
  font-size: var(--fs-sm, 0.875rem);
  color: var(--fg-base, #ededed);
  background: var(--bg-surface, #111111);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  border: 1px solid var(--border-base, #2a2a2a);
  border-radius: var(--r-md, 0.375rem);
  padding: var(--s-2, 0.5rem) var(--s-3, 0.75rem);
  padding-right: 32px;
  width: 100%;
  display: block;
  appearance: none;
  outline: none;
  cursor: pointer;
  transition: border-color var(--duration-150, 150ms) var(--ease-in-out, cubic-bezier(0.4,0,0.2,1));
}

.select:focus { border-color: var(--accent, #3291ff); }
.select:disabled { opacity: 0.5; cursor: not-allowed; }

.textarea {
  font-family: var(--app-font-sans);
  font-size: var(--fs-sm, 0.875rem);
  color: var(--fg-base, #ededed);
  line-height: var(--leading-normal, 1.5);
  background: var(--bg-surface, #111111);
  border: 1px solid var(--border-base, #2a2a2a);
  border-radius: var(--r-md, 0.375rem);
  padding: var(--s-2, 0.5rem) var(--s-3, 0.75rem);
  min-height: 80px;
  width: 100%;
  display: block;
  outline: none;
  resize: vertical;
  transition: border-color var(--duration-150, 150ms) var(--ease-in-out, cubic-bezier(0.4,0,0.2,1));
}

.textarea::placeholder { color: var(--fg-subtle, #5c5c5c); }
.textarea:focus { border-color: var(--accent, #3291ff); }
.textarea:disabled { opacity: 0.5; cursor: not-allowed; }

/* Form labels/hints */
.form-label {
  display: block;
  font-size: var(--fs-sm, 0.875rem);
  font-weight: 500;
  color: var(--fg-base, #ededed);
  margin-bottom: var(--s-1-5, 0.375rem);
}

.form-hint {
  display: block;
  font-size: var(--fs-xs, 0.75rem);
  color: var(--fg-muted, #8f8f8f);
  margin-top: var(--s-1, 0.25rem);
}

.form-error-msg {
  display: block;
  font-size: var(--fs-xs, 0.75rem);
  color: var(--status-error, #ef4444);
  margin-top: var(--s-1, 0.25rem);
}

/* Checkbox & Radio */
.check-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-sm, 0.875rem);
  color: var(--fg-base, #ededed);
  cursor: pointer;
}

.check-item input[type="checkbox"],
.check-item input[type="radio"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent, #3291ff);
  cursor: pointer;
  flex-shrink: 0;
}

.check-item input:disabled + span { opacity: 0.4; }
.check-item input:disabled { cursor: not-allowed; }

/* Toggle */
.toggle {
  position: relative;
  width: 40px;
  height: 22px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
}

.toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle__track {
  background: var(--toggle-bg-off, #2a2a2a);
  border-radius: var(--r-full, 9999px);
  width: 40px;
  height: 22px;
  position: relative;
  transition: background var(--duration-200, 200ms) var(--ease-in-out, cubic-bezier(0.4,0,0.2,1));
}

.toggle__track::after {
  content: '';
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  border-radius: 50%;
  width: 16px;
  height: 16px;
  position: absolute;
  top: 3px;
  left: 3px;
  transition: transform var(--duration-200, 200ms) var(--ease-spring, cubic-bezier(0.34,1.56,0.64,1));
}

.toggle input:checked + .toggle__track {
  background: var(--toggle-bg-on, #3291ff);
}

.toggle input:checked + .toggle__track::after {
  transform: translateX(18px);
}

.toggle input:focus-visible + .toggle__track {
  outline: 2px solid var(--accent, #3291ff);
  outline-offset: 2px;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.toggle-label {
  font-size: var(--fs-sm, 0.875rem);
  color: var(--fg-base, #ededed);
}

/* Badge */
.badge {
  font-size: var(--badge-fs, 0.75rem);
  font-weight: 500;
  line-height: 1.4;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: var(--badge-br, 9999px);
  padding: var(--badge-py, 0.125rem) var(--badge-px, 0.5rem);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.badge-default {
  color: var(--fg-muted, #8f8f8f);
  background: var(--bg-elevated, #1a1a1a);
  border-color: var(--border-base, #2a2a2a);
}

.badge-success {
  color: var(--status-success, #22c55e);
  background: var(--status-success-bg, #052e16);
  border-color: transparent;
}

.badge-warning {
  color: var(--status-warning, #f59e0b);
  background: var(--status-warning-bg, #451a03);
  border-color: transparent;
}

.badge-error {
  color: var(--status-error, #ef4444);
  background: var(--status-error-bg, #450a0a);
  border-color: transparent;
}

.badge-info {
  color: var(--status-info, #3b82f6);
  background: var(--status-info-bg, #082f49);
  border-color: transparent;
}

.tag {
  font-size: var(--fs-xs, 0.75rem);
  color: var(--accent, #3291ff);
  background: var(--accent-bg, #001c52);
  border: 1px solid color-mix(in srgb, var(--accent, #3291ff) 30%, transparent);
  border-radius: var(--r-md, 0.375rem);
  padding: var(--s-1, 0.25rem) var(--s-2, 0.5rem);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.tag__remove {
  color: inherit;
  background: none;
  border: none;
  border-radius: 2px;
  width: 12px;
  height: 12px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  opacity: 0.6;
  cursor: pointer;
  transition: opacity var(--duration-100, 100ms);
}

.tag__remove:hover { opacity: 1; }

/* Alert */
.alert {
  font-size: var(--alert-fs, 0.875rem);
  line-height: var(--leading-normal, 1.5);
  border: 1px solid transparent;
  border-radius: var(--alert-br, 0.5rem);
  margin-bottom: var(--s-3, 0.75rem);
  padding: var(--alert-py, 0.75rem) var(--alert-px, 1rem);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.alert:last-child { margin-bottom: 0; }

.alert__icon {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 1px;
}

.alert__body {}
.alert__title { font-weight: 600; margin-bottom: 2px; }
.alert__msg { opacity: 0.85; }

.alert-info {
  color: var(--status-info, #3b82f6);
  background: var(--status-info-bg, #082f49);
  border-color: color-mix(in srgb, var(--status-info, #3b82f6) 25%, transparent);
}

.alert-success {
  color: var(--status-success, #22c55e);
  background: var(--status-success-bg, #052e16);
  border-color: color-mix(in srgb, var(--status-success, #22c55e) 25%, transparent);
}

.alert-warning {
  color: var(--status-warning, #f59e0b);
  background: var(--status-warning-bg, #451a03);
  border-color: color-mix(in srgb, var(--status-warning, #f59e0b) 25%, transparent);
}

.alert-error {
  color: var(--status-error, #ef4444);
  background: var(--status-error-bg, #450a0a);
  border-color: color-mix(in srgb, var(--status-error, #ef4444) 25%, transparent);
}

/* Card */
.card {
  background: var(--card-bg, #111111);
  border: 1px solid var(--card-bd, #2a2a2a);
  border-radius: var(--card-br, 0.75rem);
  overflow: hidden;
}

.card-interactive {
  transition:
    box-shadow var(--duration-200, 200ms) var(--ease-in-out, cubic-bezier(0.4,0,0.2,1)),
    border-color var(--duration-200, 200ms) var(--ease-in-out, cubic-bezier(0.4,0,0.2,1));
  cursor: pointer;
}

.card-interactive:hover {
  border-color: var(--border-strong, #3d3d3d);
  box-shadow: var(--shadow-md, 0 4px 6px -1px rgba(0,0,0,0.1));
}

.card__media {
  height: 120px;
  background: linear-gradient(135deg, var(--accent, #3291ff), var(--brand-700, #52a8ff));
  position: relative;
}

.card__body {
  padding: var(--s-4, 1rem);
}

.card__title {
  font-size: var(--fs-base, 1rem);
  color: var(--fg-base, #ededed);
  font-weight: 600;
  line-height: var(--leading-tight, 1.25);
  margin-bottom: var(--s-1, 0.25rem);
}

.card__text {
  font-size: var(--fs-sm, 0.875rem);
  color: var(--fg-muted, #8f8f8f);
  line-height: var(--leading-relaxed, 1.625);
}

.card__footer {
  font-size: var(--fs-xs, 0.75rem);
  color: var(--fg-muted, #8f8f8f);
  border-top: 1px solid var(--border-base, #2a2a2a);
  padding: var(--s-3, 0.75rem) var(--s-4, 1rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Modal */
.modal-preview {
  background: var(--bg-base, #000000);
  padding: var(--s-4, 1rem);
  border-radius: var(--r-xl, 0.75rem);
  border: 1px solid var(--border-base, #2a2a2a);
}

.modal-preview__inner {
  background: var(--bg-surface, #111111);
  border: 1px solid var(--border-base, #2a2a2a);
  border-radius: var(--r-xl, 0.75rem);
  box-shadow: var(--shadow-xl, 0 20px 25px -5px rgba(0,0,0,0.1));
  overflow: hidden;
  max-width: 400px;
  margin: 0 auto;
}

.modal-preview__header {
  padding: var(--s-4, 1rem) var(--s-6, 1.5rem);
  border-bottom: 1px solid var(--border-base, #2a2a2a);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-preview__title {
  font-size: var(--fs-base, 1rem);
  font-weight: 600;
  color: var(--fg-base, #ededed);
}

.modal-preview__body {
  padding: var(--s-6, 1.5rem);
}

.modal-preview__body p {
  font-size: var(--fs-sm, 0.875rem);
  color: var(--fg-muted, #8f8f8f);
  line-height: var(--leading-relaxed, 1.625);
  margin-bottom: var(--s-4, 1rem);
}

.modal-preview__body p:last-child { margin-bottom: 0; }

.modal-preview__footer {
  padding: var(--s-4, 1rem) var(--s-6, 1.5rem);
  border-top: 1px solid var(--border-base, #2a2a2a);
  display: flex;
  justify-content: flex-end;
  gap: var(--s-2, 0.5rem);
}

/* Divider */
.divider {
  height: 1px;
  background: var(--border-base, #2a2a2a);
  margin: var(--s-4, 1rem) 0;
}

.divider-labeled {
  display: flex;
  align-items: center;
  gap: var(--s-3, 0.75rem);
  margin: var(--s-4, 1rem) 0;
}

.divider-labeled::before,
.divider-labeled::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-base, #2a2a2a);
}

.divider-labeled__text {
  font-size: var(--fs-xs, 0.75rem);
  color: var(--fg-muted, #8f8f8f);
  white-space: nowrap;
  font-weight: 500;
}

/* Table */
.table-wrap {
  border: 1px solid var(--border-base, #2a2a2a);
  border-radius: var(--r-lg, 0.5rem);
  overflow: hidden;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm, 0.875rem);
}

.data-table th {
  font-size: var(--fs-xs, 0.75rem);
  color: var(--fg-muted, #8f8f8f);
  font-weight: 600;
  text-align: left;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--bg-elevated, #1a1a1a);
  border-bottom: 1px solid var(--border-base, #2a2a2a);
  padding: var(--s-2-5, 0.625rem) var(--s-4, 1rem);
}

.data-table td {
  color: var(--fg-base, #ededed);
  border-bottom: 1px solid var(--border-base, #2a2a2a);
  padding: var(--s-2-5, 0.625rem) var(--s-4, 1rem);
}

.data-table tr:last-child td { border-bottom: none; }

.data-table tr:nth-child(even) td {
  background: color-mix(in srgb, var(--bg-elevated, #1a1a1a) 40%, transparent);
}

.data-table tbody tr:hover td {
  background: var(--bg-hover, #222222);
}

/* Tabs */
.tabs-bar {
  display: flex;
  border-bottom: 1px solid var(--border-base, #2a2a2a);
  gap: 2px;
  margin-bottom: var(--s-4, 1rem);
}

.tab {
  font-family: var(--app-font-sans);
  font-size: var(--fs-sm, 0.875rem);
  color: var(--tab-fg, #8f8f8f);
  font-weight: 500;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: var(--s-2, 0.5rem) var(--s-4, 1rem);
  margin-bottom: -1px;
  cursor: pointer;
  transition:
    color var(--duration-150, 150ms) var(--ease-in-out, cubic-bezier(0.4,0,0.2,1)),
    border-color var(--duration-150, 150ms) var(--ease-in-out, cubic-bezier(0.4,0,0.2,1));
}

.tab:hover:not(:disabled) { color: var(--tab-hover-fg, #ededed); }

.tab-active {
  color: var(--tab-active-fg, #3291ff);
  border-bottom-color: var(--tab-active-bd, #3291ff);
}

.tab:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.tab:focus-visible {
  outline: 2px solid var(--accent, #3291ff);
  outline-offset: -2px;
}

/* Tooltip */
.tooltip-wrap {
  position: relative;
  display: inline-flex;
}

.tooltip-content {
  font-size: var(--tooltip-fs, 0.75rem);
  color: var(--tooltip-fg, #ededed);
  white-space: nowrap;
  background: var(--tooltip-bg, #1a1a1a);
  box-shadow: var(--shadow-md, 0 4px 6px -1px rgba(0,0,0,0.1));
  border: 1px solid var(--border-base, #2a2a2a);
  border-radius: var(--tooltip-br, 0.375rem);
  padding: var(--s-1-5, 0.375rem) var(--s-3, 0.75rem);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  pointer-events: none;
  transform: translateX(-50%);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease, visibility 0.15s ease;
}

.tooltip-wrap:hover .tooltip-content,
.tooltip-wrap:focus-within .tooltip-content {
  opacity: 1;
  visibility: visible;
}

.tooltip-content::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--border-base, #2a2a2a);
}

/* Avatar */
.avatar {
  font-family: var(--app-font-sans);
  color: var(--avatar-fg, #3291ff);
  font-weight: 600;
  background: var(--avatar-bg, #001c52);
  border: 2px solid var(--bg-surface, #111111);
  border-radius: var(--avatar-br, 9999px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.avatar-sm  { width: 28px; height: 28px; font-size: var(--fs-xs, 0.75rem); }
.avatar-md  { width: 36px; height: 36px; font-size: var(--fs-sm, 0.875rem); }
.avatar-lg  { width: 48px; height: 48px; font-size: var(--fs-base, 1rem); }
.avatar-xl  { width: 64px; height: 64px; font-size: var(--fs-xl, 1.25rem); }

.avatar-stack {
  display: flex;
}

.avatar-stack .avatar + .avatar {
  margin-left: -10px;
}

/* Headings */
.preview-headings h1 {
  font-family: var(--app-font-display);
  font-size: var(--h1-fs, var(--fs-5xl, 3rem));
  color: var(--h1-fg, var(--fg-base, #ededed));
  font-weight: var(--h1-fw, 400);
  line-height: var(--h1-lh, 1.1);
  letter-spacing: var(--h1-ls, -0.03em);
  margin-bottom: var(--s-4, 1rem);
}

.preview-headings h2 {
  font-size: var(--h2-fs, var(--fs-4xl, 2.25rem));
  color: var(--h2-fg, var(--fg-base, #ededed));
  font-weight: var(--h2-fw, 700);
  line-height: var(--h2-lh, 1.25);
  letter-spacing: var(--h2-ls, -0.025em);
  margin-bottom: var(--s-3, 0.75rem);
}

.preview-headings h3 {
  font-size: var(--h3-fs, var(--fs-3xl, 1.875rem));
  color: var(--h3-fg, var(--fg-base, #ededed));
  font-weight: var(--h3-fw, 600);
  line-height: var(--h3-lh, 1.375);
  letter-spacing: var(--h3-ls, -0.02em);
  margin-bottom: var(--s-3, 0.75rem);
}

.preview-headings h4 {
  font-size: var(--h4-fs, var(--fs-2xl, 1.5rem));
  color: var(--h4-fg, var(--fg-base, #ededed));
  font-weight: var(--h4-fw, 600);
  letter-spacing: var(--h4-ls, -0.015em);
  margin-bottom: var(--s-2, 0.5rem);
}

.preview-headings h5 {
  font-size: var(--h5-fs, var(--fs-xl, 1.25rem));
  color: var(--h5-fg, var(--fg-base, #ededed));
  font-weight: var(--h5-fw, 600);
  margin-bottom: var(--s-2, 0.5rem);
}

.preview-headings h6 {
  font-size: var(--h6-fs, var(--fs-lg, 1.125rem));
  color: var(--h6-fg, var(--fg-muted, #8f8f8f));
  font-weight: var(--h6-fw, 600);
  margin-bottom: var(--s-2, 0.5rem);
}

.preview-headings .heading-meta {
  font-family: var(--app-font-mono);
  font-size: var(--fs-xs, 0.75rem);
  color: var(--fg-subtle, #5c5c5c);
  margin-bottom: var(--s-4, 1rem);
  display: block;
}

/* Body text */
.preview-body p {
  font-size: var(--body-fs, var(--fs-base, 1rem));
  color: var(--body-fg, var(--fg-base, #ededed));
  line-height: var(--body-lh, 1.625);
  margin-bottom: var(--s-4, 1rem);
  max-width: 65ch;
}

.preview-body .text-muted {
  font-size: var(--body-muted-fs, var(--fs-sm, 0.875rem));
  color: var(--body-muted-fg, var(--fg-muted, #8f8f8f));
  line-height: var(--body-lh, 1.625);
  max-width: 60ch;
}

/* Links */
.preview-links a {
  color: var(--link-fg, var(--accent, #3291ff));
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--link-fg, var(--accent, #3291ff)) 40%, transparent);
  text-underline-offset: 3px;
  transition:
    color var(--duration-100, 100ms),
    text-decoration-color var(--duration-100, 100ms);
}

.preview-links a:hover {
  color: var(--link-hover-fg, var(--fg-base, #ededed));
  text-decoration-color: var(--link-hover-fg, var(--fg-base, #ededed));
}

.preview-links a:focus-visible {
  outline: 2px solid var(--accent, #3291ff);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Lists */
.preview-lists ul {
  list-style: disc;
  padding-left: var(--s-6, 1.5rem);
  margin-bottom: var(--s-6, 1.5rem);
}

.preview-lists ol {
  list-style: decimal;
  padding-left: var(--s-6, 1.5rem);
  margin-bottom: var(--s-6, 1.5rem);
}

.preview-lists li {
  font-size: var(--list-fs, var(--fs-sm, 0.875rem));
  color: var(--list-fg, var(--fg-base, #ededed));
  line-height: var(--list-lh, 1.625);
  margin-bottom: var(--s-1-5, 0.375rem);
}

.preview-lists li:last-child { margin-bottom: 0; }

.preview-lists ul li::marker { color: var(--list-marker-fg, var(--accent, #3291ff)); }
.preview-lists ol li::marker { color: var(--list-marker-fg, var(--accent, #3291ff)); font-weight: 600; }

/* Steps list — overrides ol defaults inside .preview-lists */
.preview-lists .list-steps {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
}

/* Steps list — standalone */
.list-steps {
  list-style: none;
  padding-left: 0;
  counter-reset: steps;
}

.list-steps li {
  counter-increment: steps;
  position: relative;
  padding-left: calc(var(--steps-num-size, 1.5rem) + 12px);
  padding-bottom: 20px;
  font-size: var(--list-fs, var(--fs-sm, 0.875rem));
  color: var(--list-fg, var(--fg-base, #ededed));
  line-height: var(--list-lh, 1.625);
  margin-bottom: 0;
}

.list-steps li:last-child {
  padding-bottom: 0;
}

/* Numbered circle */
.list-steps li::before {
  content: counter(steps);
  position: absolute;
  left: 0;
  top: 0;
  width: var(--steps-num-size, 1.5rem);
  height: var(--steps-num-size, 1.5rem);
  border-radius: var(--steps-num-br, var(--r-full, 9999px));
  background: var(--steps-num-bg, var(--accent, #3291ff));
  color: var(--steps-num-fg, #fff);
  font-size: var(--steps-num-fs, var(--fs-xs, 0.75rem));
  font-weight: 700;
  font-family: var(--font-mono, monospace);
  line-height: var(--steps-num-size, 1.5rem);
  text-align: center;
}

/* Connecting line — hidden on last item */
.list-steps li::after {
  content: '';
  position: absolute;
  left: calc(var(--steps-num-size, 1.5rem) / 2 - 0.5px);
  top: var(--steps-num-size, 1.5rem);
  bottom: 0;
  width: 1px;
  background: var(--steps-line-color, var(--border-base, #2a2a2a));
}

.list-steps li:last-child::after {
  display: none;
}

/* Code */
.inline-code {
  font-family: var(--code-ff, var(--app-font-mono));
  font-size: var(--code-inline-fs, 0.875em);
  color: var(--code-inline-fg, var(--accent, #3291ff));
  background: var(--code-inline-bg, var(--bg-elevated, #1a1a1a));
  border: 1px solid var(--code-inline-bd, var(--border-base, #2a2a2a));
  border-radius: var(--code-inline-br, var(--r-base, 0.25rem));
  padding: var(--code-inline-py, 0.0625rem) var(--code-inline-px, var(--s-1, 0.25rem));
}

.code-block {
  font-family: var(--code-ff, var(--app-font-mono));
  font-size: var(--code-block-fs, var(--fs-sm, 0.875rem));
  color: var(--code-block-fg, var(--fg-base, #ededed));
  line-height: var(--code-block-lh, var(--leading-relaxed, 1.625));
  background: var(--code-block-bg, var(--bg-elevated, #1a1a1a));
  border: 1px solid var(--code-block-bd, var(--border-base, #2a2a2a));
  border-radius: var(--code-block-br, var(--r-lg, 0.5rem));
  padding: var(--code-block-py, var(--s-4, 1rem)) var(--code-block-px, var(--s-4, 1rem));
  overflow-x: auto;
}

.code-block .code-comment { color: var(--fg-subtle, #5c5c5c); }
.code-block .code-keyword,
.code-block .code-string,
.code-block .code-prop,
.code-block .code-fn      { color: inherit; }

/* Blockquote */
.preview-blockquote blockquote {
  background: var(--blockquote-bg, var(--accent-bg, #001c52));
  border-left: 3px solid var(--blockquote-bd, var(--accent, #3291ff));
  border-radius: 0 var(--r-md, 0.375rem) var(--r-md, 0.375rem) 0;
  margin: 0;
  padding: var(--s-3, 0.75rem) var(--s-5, 1.25rem);
}

.preview-blockquote blockquote p {
  font-size: var(--body-fs, var(--fs-base, 1rem));
  color: var(--body-fg, var(--fg-base, #ededed));
  line-height: var(--body-lh, 1.625);
  font-style: italic;
  margin: 0 0 8px;
}

.preview-blockquote blockquote cite {
  font-size: var(--body-muted-fs, var(--fs-sm, 0.875rem));
  color: var(--body-muted-fg, var(--fg-muted, #8f8f8f));
  font-style: normal;
}

/* ══════════════════════════════════════════════
   15. REDUCED MOTION
   ══════════════════════════════════════════════ */

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

/* ═══════════════════════════════════════════
   MOBILE — < 1000px: style guide only
   ═══════════════════════════════════════════ */

.mobile-banner  { display: none; }
.mobile-footer  { display: none; }

@media (max-width: 999px) {
  /* Hide all editor/nav chrome */
  .app-nav,
  .app-editor,
  .app-header__actions { display: none !important; }

  /* Collapse grid to single column, override any JS inline styles */
  .app-layout {
    grid-template-columns: 1fr !important;
  }

  /* Header: just the logo */
  .app-header {
    padding: 0 20px;
    height: 52px;
  }

  /* Preview fills viewport */
  .app-preview {
    height: calc(100vh - 52px);
  }

  /* Tighter section padding on mobile */
  .preview-section {
    padding: 32px 20px;
  }

  /* Desktop-only banner hidden, mobile banner shown */
  .mobile-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 20px 0;
    padding: 14px 16px;
    background: var(--bg-elevated, #1a1a1a);
    border: 1px solid var(--border-base, #2a2a2a);
    border-radius: var(--r-lg, 0.5rem);
    color: var(--fg-muted, #8f8f8f);
  }

  .mobile-banner svg {
    flex-shrink: 0;
    color: var(--accent, #0070f3);
  }

  .mobile-banner p {
    font-size: 0.8125rem;
    line-height: 1.5;
    margin: 0;
  }

  /* Mobile footer */
  .mobile-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-top: 1px solid var(--app-border);
    font-size: 11px;
    color: var(--app-text-subtle);
  }

  .mobile-footer a {
    color: var(--app-text-subtle);
    text-decoration: none;
    transition: color 0.15s;
  }

  .mobile-footer a:hover { color: var(--app-text-muted); }

  .mobile-footer__links {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .mobile-footer__dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--app-text-subtle);
  }
}