/* ═══════════════════════════════════════════════════════════
   SHOW CLOCK — style.css
   Order: variables → reset → base → layout → components →
          utilities → media queries
   ═══════════════════════════════════════════════════════════ */

/* ── 1. Root variables (Squaresmile dark palette) ───────── */
:root {
  /* Backgrounds */
  --bg-primary:        #0a0a0a;
  --bg-surface:        #1a1d22;
  --bg-surface-2:      #22262e;

  /* Text */
  --text-primary:      #f0ece4;
  --text-muted:        #8a8a8a;

  /* Accents */
  --accent-amber:      #e8a838;
  --accent-teal:       #3a8c8c;

  /* Clock color states */
  --clock-normal:      #ffffff;
  --clock-warning:     #f59e0b;
  --clock-alert:       #ef4444;
  --clock-positive:    #22c55e;

  /* State */
  --color-success:     #47c78a;
  --color-warning:     #f5b759;
  --color-error:       #ef5b5b;

  /* Effects */
  --glow-amber:        0 0 60px rgba(232, 168, 56, 0.15);
  --transition:        0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius:            12px;
  --radius-sm:         8px;
  --radius-xs:         6px;

  /* Typography */
  --font-mono:         'JetBrains Mono', 'Courier New', Courier, monospace;
  --font-body:         'DM Sans', system-ui, sans-serif;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  /* HUD */
  --hud-height:        auto;
  --timetable-width:   480px;
}

/* ── 2. Reset / base ────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  min-height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding-bottom: 220px;
  position: relative;
}

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

a:hover,
a:focus-visible {
  text-decoration: underline;
}

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input,
select {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-surface-2);
  border: 1px solid rgba(240, 236, 228, 0.15);
  border-radius: var(--radius-xs);
  padding: var(--space-2) var(--space-3);
  width: 100%;
  outline: none;
  transition: border-color var(--transition);
}

input:focus,
select:focus {
  border-color: var(--accent-amber);
}

kbd {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--bg-surface-2);
  border: 1px solid rgba(240, 236, 228, 0.2);
  border-radius: var(--radius-xs);
  padding: 2px 6px;
  line-height: 1.5;
}

ol,
dl {
  list-style: none;
}

/* focus ring — visible for keyboard users */
:focus-visible {
  outline: 2px solid var(--accent-amber);
  outline-offset: 2px;
}

/* ── 3. Layout ───────────────────────────────────────────── */
.clock-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  overflow: hidden;
  min-height: 0;
  transition: padding-right var(--transition);
}

.clock-screen.timetable-open {
  padding-right: var(--timetable-width);
}

.clock-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-6) var(--space-5) var(--space-4);
  flex-shrink: 0;
}

.clock-display__show-title {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}

.slot-zone {
  padding: 0 var(--space-5);
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  flex-shrink: 0;
}

.slot-zone--upcoming {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
  flex-shrink: 1;
  padding-bottom: var(--space-4);
}

.slot-zone__heading {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.slot-zone__empty {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: var(--space-4) 0;
  font-style: italic;
}

/* ── 4. Clock display ────────────────────────────────────── */
.clock-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.clock-display__digits {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(3rem, 14vw, 11rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--clock-normal);
  transition: color 0.6s ease;
  font-variant-numeric: tabular-nums;
  user-select: none;
}

.clock-display__time-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
}

.clock-display__offset {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2.5vw, 2rem);
  color: var(--text-muted);
  margin-left: 0.5em;
  font-weight: 400;
}

.clock-display__slot-timer {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 3.5vw, 2.4rem);
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  line-height: 1;
  margin-top: calc(var(--space-2) * -1);
}

.clock-display__master {
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 4vw, 3rem);
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  margin-top: var(--space-1);
  user-select: none;
}

.clock-display__slot-timer--over {
  color: var(--color-error);
}

.clock-display__label {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Clock color states */
.clock-display__digits--warning {
  color: var(--clock-warning);
}

.clock-display__digits--alert {
  color: var(--clock-alert);
}

.clock-display__digits--positive {
  color: var(--clock-positive);
}

/* Pulsing opacity for 0–60s */
@keyframes pulse-opacity {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

.clock-display__digits--pulse {
  animation: pulse-opacity 1s ease-in-out infinite;
}

/* ── 5. Slot cards ───────────────────────────────────────── */
.active-slot-card {
  background: rgba(34, 197, 94, 0.07);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-left: 4px solid var(--clock-positive);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin-bottom: var(--space-4);
}

.active-slot-card__time {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--clock-positive);
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
}

.active-slot-card__body {
  flex: 1;
  min-width: 0;
}

.active-slot-card__label {
  display: block;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.active-slot-card__type {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clock-positive);
  opacity: 0.75;
  margin-top: 2px;
}

.end-slot-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.end-slot-btn,
.end-slot-confirm-btn,
.end-slot-notime-btn {
  font-size: 0.78rem;
}

.active-slot-card--ended {
  opacity: 0.6;
  border-color: rgba(240, 236, 228, 0.1);
}

.slot-zone__ended-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: var(--space-1) 0;
}

.active-slot-card__overtime {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-error);
  font-weight: 700;
  flex-shrink: 0;
}

.active-slot-card__notes {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.active-slot-card__countdown {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.upcoming-slot-card {
  background: var(--bg-surface);
  border: 1px solid rgba(240, 236, 228, 0.07);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-2);
  opacity: 0.6;
}

.upcoming-slot-card--next {
  opacity: 1;
  border-color: var(--accent-amber);
  border-left: 3px solid var(--accent-amber);
  background: rgba(232, 168, 56, 0.07);
}

.upcoming-slot-card__time {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 3.5rem;
}

.upcoming-slot-card__label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.upcoming-slot-card__name {
  display: block;
  font-size: 0.9rem;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.upcoming-slot-card__type {
  display: block;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.upcoming-slot-card--warn {
  border-color: var(--accent-amber) !important;
  animation: warn-pulse 1.2s ease-in-out infinite;
}

@keyframes warn-pulse {
  0%, 100% { background: rgba(232, 168, 56, 0.07); }
  50%       { background: rgba(232, 168, 56, 0.18); }
}

@media (prefers-reduced-motion: reduce) {
  .upcoming-slot-card--warn {
    animation: none;
    background: rgba(232, 168, 56, 0.15);
  }
}

.upcoming-slot-card__notes {
  display: block;
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  opacity: 0.8;
}

.upcoming-slot-card__countdown {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── 6. Alert flash ──────────────────────────────────────── */
@keyframes flash-bg {
  0%, 49.9% { background-color: #1a0000; }
  50%, 100% { background-color: #ef4444; }
}

body.alert-flash {
  animation: flash-bg 1s steps(1, end) infinite;
}

body.alert-flash .clock-display__digits {
  color: var(--clock-alert);
  animation: none;
}

/* ── 6. HUD ──────────────────────────────────────────────── */
.hud {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(10, 10, 10, 0.98) 80%, transparent);
  padding: var(--space-4) var(--space-5) var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  z-index: 100;
  transition: right var(--transition), opacity 0.6s ease;
}

body.hud-idle .hud {
  opacity: 0;
  pointer-events: none;
}

.hud.timetable-open {
  right: var(--timetable-width);
}

/* Mode tabs */
.hud__modes {
  display: flex;
  gap: var(--space-2);
  background: var(--bg-surface);
  border-radius: 999px;
  padding: var(--space-1);
}

.hud__mode-tab {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  padding: var(--space-2) var(--space-4);
  border-radius: 999px;
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition);
}

.hud__mode-tab:hover {
  color: var(--text-primary);
}

.hud__mode-tab--active {
  background: var(--accent-amber);
  color: #0a0a0a;
  font-weight: 600;
}

/* Offset row */
.hud__offset-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.hud__offset-badge {
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 100px;
  text-align: center;
  font-family: var(--font-mono);
}

.hud__offset-badge--active {
  color: var(--accent-amber);
}

.hud__offset-reset-row {
  min-height: 20px;
}

.hud__offset-reset {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-decoration: underline;
  transition: color var(--transition);
}

.hud__offset-reset:hover {
  color: var(--text-primary);
}

/* Countdown target input row */
/* Transport */
.hud__transport {
  display: flex;
  gap: var(--space-3);
  min-height: 40px;
}

/* Utility row */
.hud__utility {
  display: flex;
  justify-content: space-between;
  width: 100%;
  max-width: 600px;
}

.hud__timetable-toggle {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  transition: color var(--transition);
}

.hud__timetable-toggle:hover,
.hud__timetable-toggle[aria-expanded="true"] {
  color: var(--accent-amber);
}

.hud__shortcut-toggle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(240, 236, 228, 0.2);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition), color var(--transition);
}

.hud__shortcut-toggle:hover {
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

.hud__theme-toggle {
  height: 28px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-xs);
  border: 1px solid rgba(240, 236, 228, 0.2);
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition), color var(--transition);
}

.hud__theme-toggle:hover {
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

.hud__fullscreen-toggle {
  height: 28px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-xs);
  border: 1px solid rgba(240, 236, 228, 0.2);
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  transition: border-color var(--transition), color var(--transition);
}

.hud__fullscreen-toggle:hover {
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

.hud__wakelockicon {
  font-size: 0.85rem;
  opacity: 0.5;
  cursor: default;
  user-select: none;
}

.hud__12h-toggle {
  height: 28px;
  padding: 0 var(--space-2);
  border-radius: var(--radius-xs);
  border: 1px solid rgba(240, 236, 228, 0.2);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition), color var(--transition);
}

.hud__12h-toggle:hover {
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

/* ── 7. Buttons ──────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), opacity var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--accent-amber);
  color: #0a0a0a;
  font-size: 0.9rem;
  padding: var(--space-2) var(--space-5);
}

.btn--primary:hover {
  background: #f0b94a;
}

.btn--ghost {
  background: transparent;
  border: 1px solid rgba(240, 236, 228, 0.2);
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: var(--space-2) var(--space-5);
}

.btn--ghost:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.btn--danger {
  background: var(--clock-alert);
  color: #fff;
  font-size: 0.9rem;
  padding: var(--space-2) var(--space-5);
}

.btn--danger:hover {
  background: #ff6060;
}

.btn--transport {
  font-size: 1rem;
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius);
}

.btn--transport.btn--primary {
  box-shadow: var(--glow-amber);
}

.btn--offset {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-xs);
  border: 1px solid rgba(240, 236, 228, 0.15);
  color: var(--text-muted);
  background: transparent;
  transition: border-color var(--transition), color var(--transition);
}

.btn--offset:hover:not(:disabled) {
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

.btn--offset:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}

.btn--sm {
  font-size: 0.8rem;
  padding: var(--space-1) var(--space-3);
}

.btn--xs {
  font-size: 0.72rem;
  padding: 2px var(--space-2);
}

/* ── 8. Timetable panel ─────────────────────────────────── */
.timetable-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: var(--timetable-width);
  background: rgba(26, 29, 34, 0.97);
  backdrop-filter: blur(8px);
  border-left: 1px solid rgba(240, 236, 228, 0.08);
  display: flex;
  flex-direction: column;
  z-index: 200;
  overflow-y: auto;
}

.timetable-panel[hidden] {
  display: none;
}

.timetable-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid rgba(240, 236, 228, 0.08);
  position: sticky;
  top: 0;
  background: rgba(26, 29, 34, 0.97);
  z-index: 1;
}

.timetable-panel__title {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.timetable-panel__close {
  font-size: 1rem;
  color: var(--text-muted);
  transition: color var(--transition);
  line-height: 1;
}

.timetable-panel__close:hover {
  color: var(--text-primary);
}

.timetable-panel__show-title {
  padding: var(--space-2) var(--space-5);
  border-bottom: 1px solid rgba(240, 236, 228, 0.06);
}

.show-title-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(240, 236, 228, 0.12);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: var(--space-1) 0;
  outline: none;
}

.show-title-input::placeholder {
  color: var(--text-muted);
  opacity: 0.5;
}

.show-title-input:focus {
  border-bottom-color: var(--accent-amber);
}

/* Offset banner */
.timetable-panel__offset-banner {
  padding: var(--space-2) var(--space-5);
  background: rgba(232, 168, 56, 0.12);
  border-bottom: 1px solid rgba(232, 168, 56, 0.2);
  font-size: 0.78rem;
  color: var(--accent-amber);
  text-align: center;
}

.timetable-panel__offset-banner[hidden] {
  display: none;
}


/* Add slot + IO row */
.timetable-panel__add {
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid rgba(240, 236, 228, 0.06);
}

.timetable-panel__io {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid rgba(240, 236, 228, 0.06);
}

/* Inline validation error in edit row */
.inline-validation {
  display: block;
  color: var(--color-error);
  font-size: 0.7rem;
  margin-top: 2px;
  line-height: 1.2;
}

/* Auxiliary countdown timer (F23) */
.hud__aux-timer {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--bg-surface);
  border: 1px solid rgba(240, 236, 228, 0.1);
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-3);
}

.aux-timer__label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.aux-timer__input {
  width: 90px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(240, 236, 228, 0.15);
  color: var(--text-primary);
  text-align: center;
  outline: none;
}

.aux-timer__display {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  min-width: 4.5rem;
  text-align: center;
}

.aux-timer__display--alert {
  color: var(--clock-alert);
}

/* Pre-slot warning setting */
.timetable-panel__warn-setting {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-5);
  border-bottom: 1px solid rgba(240, 236, 228, 0.06);
}

.warn-setting__label {
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.warn-setting__select {
  font-size: 0.78rem;
  background: var(--bg-surface-2);
  border: 1px solid rgba(240, 236, 228, 0.12);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  padding: 2px var(--space-2);
}

/* Auto-save indicator */
.save-indicator {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--color-success);
  opacity: 0;
}

.save-indicator--active {
  animation: save-fadeout 1.5s ease forwards;
}

@keyframes save-fadeout {
  0%   { opacity: 1; }
  60%  { opacity: 1; }
  100% { opacity: 0; }
}

/* Import error message */
.import-error {
  padding: var(--space-2) var(--space-5);
  color: var(--color-error);
  font-size: 0.8rem;
}

/* Footer */
.timetable-panel__footer {
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid rgba(240, 236, 228, 0.06);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: center;
}

/* ── 9. Timetable table ──────────────────────────────────── */
.timetable-panel__table-wrap {
  flex: 1;
  overflow-x: auto;
}

.timetable-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.83rem;
}

.timetable-table thead th {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid rgba(240, 236, 228, 0.1);
  white-space: nowrap;
}

.timetable-row td {
  padding: var(--space-2) var(--space-3);
  vertical-align: middle;
  border-bottom: 1px solid rgba(240, 236, 228, 0.04);
  transition: background var(--transition);
}

/* State: past */
.timetable-row--past td {
  opacity: 0.35;
}

/* State: active (currently on) */
.timetable-row--active td {
  background: rgba(232, 168, 56, 0.07);
}

.timetable-row--active .timetable-row__time {
  color: var(--accent-amber);
  font-weight: 700;
}

.timetable-row--active .timetable-row__label {
  font-weight: 600;
}

/* Accent bar via box-shadow on first td */
.timetable-row--active td:first-child {
  box-shadow: inset 3px 0 0 var(--accent-amber);
}

/* State: countdown separator */
.timetable-row--countdown td {
  padding: 6px var(--space-3);
  text-align: center;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--accent-amber);
  background: rgba(232, 168, 56, 0.05);
  letter-spacing: 0.04em;
}

/* State: next slot (row just after countdown) */
.timetable-row--next .timetable-row__label {
  color: var(--text-primary);
}

/* Hover on editable rows */
.timetable-row:not(.timetable-row--countdown):not(.timetable-row--past):hover td {
  background: rgba(240, 236, 228, 0.04);
  cursor: pointer;
}

.timetable-row--past:hover td {
  cursor: pointer;
  opacity: 0.55;
}

/* Columns */
.timetable-row__time {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  white-space: nowrap;
  color: var(--text-muted);
}

.timetable-row__type {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  white-space: nowrap;
}

.timetable-row__label {
  color: var(--text-primary);
}

.timetable-row__notes-sub {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 1px;
}

.timetable-row__duration {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
  text-align: right;
}

/* Delay badge */
.delay-badge {
  display: inline-block;
  font-size: 0.62rem;
  font-family: var(--font-mono);
  border-radius: 3px;
  padding: 1px 4px;
  margin-left: var(--space-1);
  vertical-align: middle;
  line-height: 1.4;
}

.delay-badge--late {
  background: rgba(245, 158, 11, 0.18);
  color: var(--clock-warning);
}

.delay-badge--early {
  background: rgba(71, 199, 138, 0.15);
  color: var(--color-success);
}

/* Empty state */
.timetable-empty {
  padding: var(--space-6) var(--space-5);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.83rem;
}

/* Edit mode row */
.timetable-row--editing td {
  background: rgba(232, 168, 56, 0.06) !important;
  padding: var(--space-2) var(--space-2);
  cursor: default;
}

.timetable-row--editing input,
.timetable-row--editing select {
  font-size: 0.8rem;
  padding: 3px 6px;
  width: 100%;
  min-width: 0;
}

.timetable-row--editing .edit-time {
  width: 80px;
  font-family: var(--font-mono);
}

.timetable-row--editing .edit-notes {
  min-width: 100px;
}

.timetable-row--editing .edit-slot-notes {
  min-width: 100px;
  display: block;
  margin-top: 4px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.timetable-row--editing .edit-slot-offset {
  width: 48px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.delay-badge--slot {
  background: rgba(232, 168, 56, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(232, 168, 56, 0.3);
}

.dup-row-btn {
  opacity: 0;
  transition: opacity 0.15s;
  margin-left: var(--space-1);
  vertical-align: middle;
}

.timetable-row:hover .dup-row-btn {
  opacity: 1;
}

.timetable-row__actions {
  display: flex;
  gap: var(--space-1);
  align-items: center;
  white-space: nowrap;
}

/* ── 10. Keyboard shortcut overlay ──────────────────────── */
.shortcut-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 400;
  backdrop-filter: blur(4px);
}

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

.shortcut-overlay__card {
  background: var(--bg-surface);
  border: 1px solid rgba(240, 236, 228, 0.1);
  border-radius: var(--radius);
  padding: var(--space-6);
  width: 360px;
  max-width: 90vw;
}

.shortcut-overlay__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-5);
  color: var(--text-primary);
}

.shortcut-overlay__list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2) var(--space-5);
  align-items: center;
  margin-bottom: var(--space-5);
}

.shortcut-overlay__list dt {
  display: flex;
  gap: var(--space-1);
}

.shortcut-overlay__list dd {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.shortcut-overlay__close {
  width: 100%;
  justify-content: center;
}

/* ── 11. Utilities ───────────────────────────────────────── */
[hidden] {
  display: none !important;
}

/* ── 12. Themes ──────────────────────────────────────────── */

/* Light theme */
body.theme-light {
  --bg-primary:    #f5f3ef;
  --bg-surface:    #eceae4;
  --bg-surface-2:  #e4e2dc;
  --text-primary:  #1a1a1a;
  --text-muted:    #666666;
  --clock-normal:  #1a1a1a;
}

body.theme-light .hud {
  background: linear-gradient(to top, rgba(245, 243, 239, 0.98) 80%, transparent);
}

body.theme-light .timetable-panel {
  background: var(--bg-surface);
}

body.theme-light .timetable-panel__header {
  background: rgba(236, 234, 228, 0.97);
}

/* High-contrast theme */
body.theme-hc {
  --bg-primary:    #000000;
  --bg-surface:    #111111;
  --bg-surface-2:  #1a1a1a;
  --text-primary:  #ffffff;
  --text-muted:    #cccccc;
  --clock-normal:  #ffffff;
  --accent-amber:  #ffcc00;
}

body.theme-hc .clock-display__digits {
  font-size: clamp(4rem, 18vw, 14rem);
}

/* Auto: follow OS preference (dark is default, so only override for light) */
@media (prefers-color-scheme: light) {
  body:not(.theme-dark):not(.theme-hc) {
    --bg-primary:    #f5f3ef;
    --bg-surface:    #eceae4;
    --bg-surface-2:  #e4e2dc;
    --text-primary:  #1a1a1a;
    --text-muted:    #666666;
    --clock-normal:  #1a1a1a;
  }

  body:not(.theme-dark):not(.theme-hc) .hud {
    background: linear-gradient(to top, rgba(245, 243, 239, 0.98) 80%, transparent);
  }

  body:not(.theme-dark):not(.theme-hc) .timetable-panel {
    background: var(--bg-surface);
  }

  body:not(.theme-dark):not(.theme-hc) .timetable-panel__header {
    background: rgba(236, 234, 228, 0.97);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .clock-display__digits--pulse,
  .clock-display__digits--pulse * {
    animation: none !important;
  }

  body.alert-flash {
    animation: none !important;
    background-color: rgba(239, 68, 68, 0.15);
  }
}

/* ── 13. Media queries ───────────────────────────────────── */

/* Tablet and up */
@media (min-width: 768px) {
  :root {
    --timetable-width: 480px;
  }
}

/* Large desktop — give the clock more room */
@media (min-width: 1400px) {
  :root {
    --timetable-width: 520px;
  }
}

/* ── Print / PDF export (F18) ────────────────────────────── */
@media print {
  .hud, .timetable-panel, .shortcut-overlay, .clock-screen { display: none !important; }

  body::before {
    content: attr(data-show-title);
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
  }

  .print-timetable {
    display: block !important;
    font-family: sans-serif;
    font-size: 11pt;
    color: #000;
  }

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

  .print-timetable th,
  .print-timetable td {
    border: 1px solid #ccc;
    padding: 4pt 8pt;
    text-align: left;
  }

  .print-timetable th {
    background: #eee;
    font-weight: 600;
  }
}

/* Mobile — timetable full width overlay */
@media (max-width: 600px) {
  :root {
    --timetable-width: 100vw;
  }

  .clock-screen.timetable-open {
    padding-right: 0;
  }

  .hud.timetable-open {
    right: 0;
  }

  .hud {
    padding: var(--space-3) var(--space-3) var(--space-4);
    gap: var(--space-2);
  }

  .hud__mode-tab {
    font-size: 0.8rem;
    padding: var(--space-1) var(--space-3);
  }

  .hud__offset-row {
    gap: var(--space-1);
  }
}