/* ============================================
   UNIX TIMESTAMP CONVERTER  (.uts-*)
   ============================================ */

.uts-converter {
  max-width: 900px;
  margin: 0 auto;
}

/* ── Live clock bar ── */
.uts-live-bar {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--on-primary);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
}

.uts-live-label {
  flex-basis: 100%;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  opacity: 0.82;
  margin-bottom: -0.25rem;
}

.uts-live-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1 1 auto;
}

.uts-live-ts,
.uts-live-ms {
  font-size: 1.05rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.uts-live-unit {
  font-size: 0.78rem;
  opacity: 0.72;
  flex-shrink: 0;
}

.uts-live-bar .btn {
  background: rgba(var(--on-primary-rgb), 0.15);
  color: var(--on-primary);
  border: 1px solid rgba(var(--on-primary-rgb), 0.28);
  font-size: 0.8rem;
  padding: 0.3rem 0.85rem;
  min-height: 44px;
  border-radius: 8px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
  flex-shrink: 0;
}

.uts-live-bar .btn:hover {
  background: rgba(var(--on-primary-rgb), 0.28);
}

/* ── Tabs ── */
.calc-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 2rem;
  border-bottom: 2px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
}

.calc-tabs::-webkit-scrollbar { display: none; }

.calc-tab {
  padding: 0.75rem 1.5rem;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
  white-space: nowrap;
  min-height: 44px;
}

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

.calc-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

.calc-section { display: none; }
.calc-section.active { display: block; animation: fadeUp 0.25s ease; }

/* ── Input row ── */
.uts-input-row {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.uts-input-row .input-group { margin-bottom: 0; }

.uts-hint {
  display: block;
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 1rem;
}

/* ── Preset chips ── */
.uts-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1.5rem;
}

.uts-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.uts-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

.uts-chip:active { transform: none; }

/* ── Result area ── */
.uts-result-area { margin-top: 0.5rem; }

.uts-empty {
  color: var(--text-muted);
  text-align: center;
  padding: 2rem 0;
  margin: 0;
}

.uts-error {
  color: var(--danger);
  padding: 0.75rem 1rem;
  background: rgba(var(--danger-rgb), 0.08);
  border-left: 3px solid var(--danger);
  border-radius: 6px;
  font-size: 0.9rem;
  margin: 0;
}

/* ── Auto-detect badge ── */
.uts-detect-badge {
  display: inline-block;
  font-size: 0.8rem;
  background: rgba(var(--primary-rgb), 0.08);
  border: 1px solid rgba(var(--primary-rgb), 0.2);
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.uts-detect-badge strong { color: var(--primary); }

/* ── Result hero: two cards side by side ── */
.uts-result-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.uts-result-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  transition: var(--transition);
}

.uts-result-block:hover { border-color: var(--primary); }

.uts-result-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.uts-result-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  word-break: break-all;
  font-variant-numeric: tabular-nums;
}

.uts-future .uts-result-value { color: var(--success); }
.uts-past   .uts-result-value { color: var(--text-muted); }

/* ── Date metadata chips ── */
.uts-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.uts-meta-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  flex: 1 1 auto;
  min-width: 90px;
}

.uts-meta-chip strong {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 700;
}

.uts-meta-chip span {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

/* ── Worldwide timezone panel ── */
.uts-tz-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
}

.uts-tz-heading {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.uts-tz-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 1.5rem;
}

.uts-tz-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.35rem 0;
  border-bottom: 1px dashed var(--border);
  font-size: 0.88rem;
}

.uts-tz-row:nth-last-child(-n+2) { border-bottom: none; }

.uts-tz-label {
  color: var(--text-muted);
  font-weight: 500;
  flex-shrink: 0;
  margin-right: 0.75rem;
}

.uts-tz-value {
  color: var(--text);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  text-align: right;
  font-size: 0.82rem;
}

/* ── Action bar ── */
.uts-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
  justify-content: center;
}

.uts-actions .btn {
  min-height: 44px;
  flex: 1 1 auto;
  min-width: 140px;
}

/* ── Date tab controls ── */
.uts-date-actions {
  display: flex;
  gap: 0.5rem;
  margin: 0.75rem 0 1.5rem;
  flex-wrap: wrap;
}

.uts-date-actions .btn { min-height: 44px; }

/* ── Date → Timestamp result grid ── */
.uts-d2t-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.uts-d2t-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.uts-d2t-card:hover { border-color: var(--primary); }

.uts-d2t-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.uts-d2t-label small {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  margin-top: 0.1rem;
  text-transform: none;
  letter-spacing: 0;
}

.uts-d2t-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  word-break: break-all;
}

/* ── Date meta rows ── */
.uts-d2t-meta {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
}

.uts-d2t-meta-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.4rem 0;
  border-bottom: 1px dashed var(--border);
  flex-wrap: wrap;
}

.uts-d2t-meta-row:last-child { border-bottom: none; }

.uts-d2t-meta-label {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.9rem;
  min-width: 120px;
  flex-shrink: 0;
}

.uts-d2t-meta-val {
  font-weight: 600;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  flex: 1 1 auto;
  word-break: break-all;
  font-size: 0.95rem;
}

.uts-future { color: var(--success); }
.uts-past   { color: var(--text-muted); }

/* ── Mobile (≤ 640px) ── */
@media (max-width: 640px) {
  .uts-input-row {
    grid-template-columns: 1fr;
  }

  .uts-result-hero {
    grid-template-columns: 1fr;
  }

  .uts-tz-grid {
    grid-template-columns: 1fr;
  }

  .uts-tz-row:nth-last-child(-n+2) {
    border-bottom: 1px dashed var(--border);
  }

  .uts-tz-row:last-child {
    border-bottom: none;
  }

  .uts-d2t-grid {
    grid-template-columns: 1fr;
  }

  .uts-actions .btn {
    flex: 1 1 100%;
  }

  .uts-live-group {
    flex: 1 1 100%;
  }

  .uts-meta-chip {
    flex: 1 1 calc(50% - 0.25rem);
  }
}