/* css/slot-cards.css — Slot-zone scroll container, preshow strip, active-slot card, upcoming-slot card stack (3-tier hierarchy). Imported into the components layer. */

.clock-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  min-height: 0;
}

.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;
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg-primary);
}

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

.slot-zone--upcoming {
  flex-shrink: 0;
  padding-bottom: var(--space-4);
}

/* ── Pre-show countdown strip ────────────────────────────── */
.preshow-strip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-5);
  background: rgba(232, 168, 56, 0.05);
  border-top: 1px solid rgba(232, 168, 56, 0.15);
  border-bottom: 1px solid rgba(232, 168, 56, 0.08);
  flex-shrink: 0;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
}

.preshow-strip[hidden] { display: none; }

.preshow-strip__row {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}

.preshow-strip__label {
  color: var(--text-muted);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  flex-shrink: 0;
}

.preshow-strip__countdown {
  font-family: var(--font-mono);
  color: var(--accent-amber);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.preshow-strip__slot-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 280px;
}

.preshow-strip--warn .preshow-strip__countdown {
  animation: warn-pulse-text 1.2s ease-in-out infinite;
}

@keyframes warn-pulse-text {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.55; }
}

@media (prefers-reduced-motion: reduce) {
  .preshow-strip--warn .preshow-strip__countdown {
    animation: none;
    color: var(--clock-warning);
  }
}

.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;
}

/* ── Active slot card + upcoming-slot card stack ────────── */
.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;
  transition: opacity var(--transition);
}

.upcoming-slot-card--next {
  opacity: 1;
  padding: var(--space-4) var(--space-5);
  border-color: var(--accent-amber);
  border-left: 4px solid var(--accent-amber);
  background: rgba(232, 168, 56, 0.10);
}

.upcoming-slot-card--next .upcoming-slot-card__time {
  font-size: 0.95rem;
}

.upcoming-slot-card--next .upcoming-slot-card__name {
  font-size: 1rem;
  font-weight: 600;
}

.upcoming-slot-card--after-next {
  opacity: 0.85;
  padding: var(--space-3) var(--space-4);
  border-color: rgba(232, 168, 56, 0.25);
  border-left: 2px solid rgba(232, 168, 56, 0.4);
  background: var(--bg-surface);
}

.upcoming-slot-card--after-next .upcoming-slot-card__name {
  font-weight: 500;
}

.upcoming-slot-card--receded {
  opacity: 0.65;
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-1);
  border: 1px solid var(--border-subtle);
  border-left: 1px solid var(--border-subtle);
}

.upcoming-slot-card--receded .upcoming-slot-card__time {
  font-size: 0.7rem;
  min-width: 3rem;
}

.upcoming-slot-card--receded .upcoming-slot-card__name {
  font-size: 0.78rem;
}

.upcoming-slot-card--receded .upcoming-slot-card__type {
  font-size: 0.6rem;
}

.upcoming-slot-card--receded .upcoming-slot-card__notes {
  font-size: 0.6rem;
}

.upcoming-slot-card--receded .upcoming-slot-card__countdown {
  font-size: 0.7rem;
}

.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;
}

/* ── Phase 18: slot-tag indicators (relocated from legacy.css section 9 / timetable-table area per D-CW2-03 — BEM purity: slot-tags are slot-card visual indicators; resolves Phase 17 deferral per R-PATTERNS-CW1-2) ── */

/* 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);
}

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

/* Phase 5: slot mode and auto-advance indicator tags (EDI-04, D-10) */
/* Injected by modeTagHtml() and aaTagHtml() in the read-only timetable row */
.slot-mode-tag {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 1px 4px;
  border-radius: var(--radius-sm, 3px);
  letter-spacing: 0.05em;
  vertical-align: middle;
  margin-left: var(--space-1);
}
.slot-mode-tag--countdown,
.slot-mode-tag--countup { color: var(--accent); }
.slot-mode-tag--clock   { color: var(--text-muted); }
.slot-aa-tag {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-left: var(--space-1);
  vertical-align: middle;
}