:root {
  --bg: #0b0b1a;
  --bg-surface: rgba(255,255,255,0.04);
  --bg-surface-hover: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.08);
  --text: #ffffff;
  --text-dim: rgba(255,255,255,0.45);
  --accent: #00e5ff;
  --accent-glow: rgba(0,229,255,0.25);
  --danger: #ff4466;
  --danger-glow: rgba(255,68,102,0.25);
  --success: #00e676;
  --font-display: 'Roboto Mono', monospace;
  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --display-size: 8vw;
  --label-size: 2vw;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

html {
  height: 100%;
  overflow-x: hidden;
}

body {
  min-height: 100%;
}

body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  user-select: none;
  -webkit-user-select: none;
  overflow-x: hidden;
}

.app-viewport {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─── Navigation ─── */

#nav {
  display: flex;
  align-items: center;
  padding: 12px 24px;
  gap: 16px;
  z-index: 100;
  transition: opacity var(--transition), transform var(--transition);
}

#nav.hidden-ui {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-100%);
}

.nav-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 4px;
  color: var(--accent);
  opacity: 0.7;
  flex-shrink: 0;
  text-decoration: none;
}

.nav-brand:hover {
  opacity: 1;
}

.nav-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px;
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.nav-tab:hover {
  color: var(--text);
  background: var(--bg-surface-hover);
}

.nav-tab.active {
  color: var(--bg);
  background: var(--accent);
}

.nav-tab svg {
  flex-shrink: 0;
}

.nav-spacer {
  flex: 1;
}

/* ─── Main Display ─── */

#display-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  min-height: 0;
  position: relative;
}

#custom-label {
  font-family: var(--font-ui);
  font-size: var(--label-size);
  font-weight: 300;
  color: var(--text);
  opacity: 0.7;
  text-align: center;
  outline: none;
  padding: 4px 16px;
  border-radius: 8px;
  margin-bottom: 8px;
  min-height: 1.4em;
  max-width: 80%;
  word-break: break-word;
  transition: background var(--transition), opacity var(--transition);
  cursor: text;
}

#custom-label:empty::before {
  content: attr(data-placeholder);
  color: var(--text-dim);
  opacity: 0.5;
  pointer-events: none;
}

#custom-label:focus {
  background: var(--bg-surface);
  opacity: 1;
}

#custom-label.label-hidden {
  opacity: 0;
  pointer-events: none;
  min-height: 0;
  height: 0;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

#main-display {
  font-family: var(--font-display);
  font-size: var(--display-size);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text);
  line-height: 1.1;
  text-align: center;
  transition: color 0.3s;
  text-shadow: 0 0 40px var(--accent-glow);
}

#main-display.flash {
  animation: flash-anim 0.5s ease infinite alternate;
}

@keyframes flash-anim {
  0% { opacity: 1; }
  100% { opacity: 0.2; }
}

#sub-display {
  font-family: var(--font-ui);
  font-size: calc(var(--display-size) * 0.2);
  color: var(--text-dim);
  margin-top: 8px;
  text-align: center;
  min-height: 1.2em;
}

#timer-progress-wrap {
  width: 60%;
  max-width: 600px;
  height: 4px;
  background: var(--bg-surface);
  border-radius: 2px;
  margin-top: 20px;
  overflow: hidden;
}

#timer-progress-wrap.hidden {
  display: none;
}

#timer-progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  width: 100%;
  transition: width 0.3s linear;
  box-shadow: 0 0 10px var(--accent-glow);
}

/* ─── Controls ─── */

#controls {
  padding: 0 24px 16px;
  display: flex;
  justify-content: center;
  z-index: 50;
  transition: opacity var(--transition), transform var(--transition);
}

#controls.hidden-ui {
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
}

.mode-controls {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
  max-width: 700px;
}

.mode-controls.active {
  display: flex;
}

/* Pills */

.pill-btn {
  padding: 6px 16px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-dim);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  border-radius: 20px;
  cursor: pointer;
  transition: all var(--transition);
}

.pill-btn:hover {
  background: var(--bg-surface-hover);
  color: var(--text);
  border-color: rgba(255,255,255,0.15);
}

.pill-btn.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.mode-controls[data-mode="clock"] {
  flex-direction: row;
  justify-content: center;
  flex-wrap: wrap;
}

#timer-setup,
#todate-setup,
#sincedate-setup {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
}

/* Timer Inputs */

.timer-inputs, .alarm-time-inputs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.timer-input-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.timer-input-group input {
  width: 72px;
  text-align: center;
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 4px;
  outline: none;
  transition: border-color var(--transition);
  -moz-appearance: textfield;
}

.timer-input-group input::-webkit-inner-spin-button,
.timer-input-group input::-webkit-outer-spin-button {
  -webkit-appearance: none;
}

.timer-input-group input:focus {
  border-color: var(--accent);
}

.timer-input-group label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.ampm-group input {
  width: 60px;
  font-size: 20px;
  cursor: default;
}

.spinner-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 12px;
  cursor: pointer;
  padding: 4px 12px;
  border-radius: 6px;
  transition: all var(--transition);
}

.spinner-btn:hover {
  color: var(--accent);
  background: var(--bg-surface);
}

.timer-sep {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--text-dim);
  padding-bottom: 20px;
}

.alarm-ampm-sep {
  width: 12px;
}

/* Presets */

.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.preset-btn {
  padding: 6px 16px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-dim);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  border-radius: 20px;
  cursor: pointer;
  transition: all var(--transition);
}

.preset-btn:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  transform: scale(1.05);
}

/* Action Buttons */

.action-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 4px;
}

.action-btn {
  padding: 10px 32px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition);
  min-width: 100px;
}

.action-btn:hover {
  background: var(--bg-surface-hover);
  transform: translateY(-1px);
}

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

.action-btn.primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.action-btn.primary:hover {
  box-shadow: 0 6px 30px var(--accent-glow);
  transform: translateY(-2px);
}

.action-btn.danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
  box-shadow: 0 4px 20px var(--danger-glow);
}

.action-btn.danger:hover {
  box-shadow: 0 6px 30px var(--danger-glow);
}

.action-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none !important;
}

/* Laps */

#lap-list {
  width: 100%;
  max-width: 500px;
  max-height: 220px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  scrollbar-width: thin;
  scrollbar-color: var(--bg-surface-hover) transparent;
}

#lap-list::-webkit-scrollbar {
  width: 4px;
}

#lap-list::-webkit-scrollbar-thumb {
  background: var(--bg-surface-hover);
  border-radius: 2px;
}

.lap-item {
  display: flex;
  justify-content: space-between;
  padding: 10px 20px;
  font-size: 15px;
  color: var(--text);
  background: var(--bg-surface);
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.5px;
}

.lap-item .lap-num {
  color: var(--accent);
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 14px;
  min-width: 70px;
}

.lap-item.best {
  color: var(--success);
  background: rgba(0, 230, 118, 0.06);
}

.lap-item.worst {
  color: var(--danger);
  background: rgba(255, 68, 102, 0.06);
}

/* Alarm Status */

#alarm-status {
  font-size: 14px;
  color: var(--text-dim);
  text-align: center;
  min-height: 1.5em;
  transition: all var(--transition);
}

#alarm-status.active {
  color: var(--accent);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.alarm-status-icon {
  margin-right: 6px;
  font-size: 18px;
}

/* Alarm config / active toggle */
#alarm-config {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
}

#alarm-config.hidden {
  display: none;
}

#alarm-active-controls {
  width: 100%;
}

#alarm-active-controls.hidden {
  display: none;
}

/* Alarm countdown badge in sub-display */
.alarm-countdown-badge {
  display: inline-block;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 18px;
  font-size: clamp(14px, 2vw, 20px);
  color: var(--accent, #00e5ff);
  font-weight: 500;
  letter-spacing: 0.5px;
  animation: alarm-pulse 2s ease-in-out infinite;
}

@keyframes alarm-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* ─── Holiday Shortcuts ─── */
.holiday-shortcuts {
  margin-top: 16px;
  text-align: center;
}
.holiday-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  display: block;
  margin-bottom: 10px;
}
.holiday-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}
.holiday-links .preset-btn {
  text-decoration: none;
  font-size: 12px;
  padding: 5px 12px;
}

/* ─── Overlays ─── */

#alarm-overlay, #timer-done-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(10px);
  animation: overlay-in 0.3s ease;
}

#alarm-overlay.hidden, #timer-done-overlay.hidden {
  display: none;
}

@keyframes overlay-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.alarm-ring-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.alarm-ring-icon {
  font-size: 80px;
  animation: ring-bounce 0.6s ease infinite alternate;
}

@keyframes ring-bounce {
  from { transform: rotate(-15deg) scale(1); }
  to { transform: rotate(15deg) scale(1.1); }
}

.alarm-ring-text {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: var(--text);
  text-shadow: 0 0 30px var(--accent-glow);
}

/* ─── Picker Overlays (Fonts & Themes) ─── */

.picker-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  backdrop-filter: blur(8px);
  animation: overlay-in 0.2s ease;
}

.picker-overlay.hidden {
  display: none;
}

.picker-panel {
  background: #141422;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  width: 90vw;
  max-width: 800px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
}

.picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}

.picker-header h2 {
  font-family: var(--font-ui);
  font-size: 18px;
  font-weight: 600;
  color: #fff;
}

.picker-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.6);
  font-size: 22px;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition);
}

.picker-close:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
}

.picker-body {
  padding: 20px 24px 24px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.picker-body::-webkit-scrollbar {
  width: 5px;
}

.picker-body::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
}

/* Font Picker Grid */

.picker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
}

.font-card {
  background: rgba(255,255,255,0.03);
  border: 2px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 14px 16px;
  cursor: pointer;
  transition: all var(--transition);
  overflow: hidden;
}

.font-card:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

.font-card.selected {
  border-color: var(--accent);
  background: rgba(0,229,255,0.06);
  box-shadow: 0 0 20px rgba(0,229,255,0.1);
}

.font-card-name {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 500;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.font-card.selected .font-card-name {
  color: var(--accent);
}

.font-card-preview {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

/* Theme Picker Grid */

.theme-grid {
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.theme-card {
  border-radius: 12px;
  cursor: pointer;
  transition: all var(--transition);
  overflow: hidden;
  border: 2px solid rgba(255,255,255,0.06);
}

.theme-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.2);
}

.theme-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(0,229,255,0.15);
}

.theme-card-preview {
  padding: 18px 14px;
  text-align: center;
  font-weight: 700;
  font-size: 28px;
  letter-spacing: 2px;
  line-height: 1;
}

.theme-card-name {
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  text-align: center;
  padding: 8px 8px 10px;
  color: rgba(255,255,255,0.5);
  background: rgba(0,0,0,0.3);
}

.theme-card.selected .theme-card-name {
  color: var(--accent);
}

/* Custom Colors Section */

.custom-color-section {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.custom-color-section h3 {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.custom-color-controls {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.custom-color-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.custom-color-row label {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.6);
  min-width: 80px;
}

.custom-color-row input[type="color"] {
  width: 48px;
  height: 36px;
  border: 2px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  background: none;
  cursor: pointer;
  padding: 2px;
  transition: border-color var(--transition);
}

.custom-color-row input[type="color"]:hover {
  border-color: rgba(255,255,255,0.3);
}

.custom-color-row input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

.custom-color-row input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 5px;
}

/* ─── Toolbar ─── */

#toolbar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  padding: 12px 24px;
  z-index: 100;
  transition: opacity var(--transition), transform var(--transition);
}

#toolbar.hidden-ui {
  opacity: 0;
  pointer-events: none;
  transform: translateY(100%);
}

.toolbar-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-dim);
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}

.toolbar-btn:hover {
  color: var(--text);
  background: var(--bg-surface-hover);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

.toolbar-text-icon {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 15px;
}

.toolbar-divider {
  width: 1px;
  height: 24px;
  background: var(--border);
  margin: 0 6px;
}

.alarm-setup {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
}

.alarm-time-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.alarm-now-btn {
  align-self: center;
  margin-bottom: 8px;
}

.alarm-pills {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ─── Alarm Options ─── */

.alarm-options {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.alarm-option-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.alarm-option-group label {
  font-size: 12px;
  color: var(--text-dim);
  font-weight: 500;
}

.alarm-option-group select {
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--text);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition);
}

.alarm-option-group select:focus {
  border-color: var(--accent);
}

.alarm-option-group select option {
  background: #1a1a2e;
  color: #fff;
}

.btn-preview-sound {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-dim);
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: all var(--transition);
  flex-shrink: 0;
}

.btn-preview-sound:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ─── Timer Sub-tabs & Date Inputs ─── */

.timer-sub-tabs {
  display: flex;
  gap: 4px;
  justify-content: center;
  flex-wrap: wrap;
}

.timer-sub {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
}

.timer-sub.active {
  display: flex;
}

.date-time-inputs {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

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

.date-input-group label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

.date-input-group input {
  font-family: var(--font-ui);
  font-size: 16px;
  color: var(--text);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  outline: none;
  transition: border-color var(--transition);
}

.date-input-group input:focus {
  border-color: var(--accent);
}

/* ─── Utilities ─── */

.hidden {
  display: none !important;
}

/* ─── Responsive ─── */

@media (max-width: 768px) {
  :root {
    --display-size: 14vw;
    --label-size: 4vw;
  }

  #nav {
    padding: 8px 12px;
  }

  .nav-brand {
    display: none;
  }

  .nav-tab span {
    display: none;
  }

  .nav-tab {
    padding: 8px 14px;
  }

  .timer-input-group input {
    width: 56px;
    font-size: 22px;
  }

  .timer-sep {
    font-size: 22px;
  }

  .preset-btn {
    padding: 5px 12px;
    font-size: 12px;
  }

  #toolbar {
    padding: 8px 12px;
  }

  .picker-panel {
    width: 96vw;
    max-height: 90vh;
  }

  .picker-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }

  .theme-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }
}

@media (max-width: 480px) {
  :root {
    --display-size: 18vw;
    --label-size: 5vw;
  }

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

  .font-card-preview {
    font-size: 24px;
  }
}

/* ─── Scrollbar global ─── */

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--bg-surface-hover);
  border-radius: 3px;
}

/* ─── Focus visible ─── */

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

/* ─── App Footer (visible, below fold) ─── */

.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 48px 32px 24px;
  font-family: var(--font-ui);
  transition: opacity var(--transition), transform var(--transition);
}

.site-footer.hidden-ui {
  opacity: 0;
  pointer-events: none;
  height: 0;
  padding: 0;
  overflow: hidden;
  border: none;
}

.footer-columns {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}

.footer-col h4 {
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 14px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 8px;
}

.footer-col a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 13px;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--text);
}

.footer-bottom {
  max-width: 900px;
  margin: 0 auto;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copyright {
  font-size: 12px;
  color: rgba(255,255,255,0.25);
}

.footer-legal {
  display: flex;
  gap: 16px;
}

.footer-legal a {
  font-size: 12px;
  color: rgba(255,255,255,0.25);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-legal a:hover {
  color: var(--text-dim);
}

/* Scroll hint — subtle arrow above footer */
.footer-scroll-hint {
  text-align: center;
  padding: 6px 16px 2px;
  transition: opacity var(--transition), transform var(--transition);
}

.footer-scroll-hint.hidden-ui {
  opacity: 0;
  pointer-events: none;
  transform: translateY(100%);
}

.footer-scroll-hint a {
  color: rgba(255,255,255,0.18);
  text-decoration: none;
  font-size: 11px;
  font-family: var(--font-ui);
  padding: 4px 10px;
  border-radius: 4px;
  transition: color var(--transition);
}

.footer-scroll-hint a:hover {
  color: rgba(255,255,255,0.5);
}

/* ─── Preset SEO Content Section ─── */
.preset-seo-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 48px 32px 32px;
  font-family: var(--font-ui);
  color: var(--text-dim);
  line-height: 1.7;
}
.preset-seo-content h2 {
  color: var(--text);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 16px;
}
.preset-seo-content p {
  font-size: 15px;
  margin-bottom: 14px;
}
.preset-seo-content .related-links {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.preset-seo-content .related-links h3 {
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}
.preset-seo-content .related-links a {
  display: inline-block;
  color: var(--accent, #00e5ff);
  text-decoration: none;
  font-size: 13px;
  padding: 4px 12px;
  margin: 3px 4px;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: background var(--transition), color var(--transition);
}
.preset-seo-content .related-links a:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text);
}