/* ============================================================
   Unix Timestamp Batch Converter — style.css
   ============================================================ */

/* Page-scoped design tokens */
.ts-page {
  --ts-accent: #f43f5e;
  --ts-accent-soft: #fb7185;
  --ts-control-bg: #0f1114;
  --ts-result-bg: #1a1d23;
  --ts-border: rgba(244, 63, 94, 0.22);
  --ts-border-thick: 2px solid rgba(244, 63, 94, 0.28);
  --ts-radius: 12px;
  --ts-radius-lg: 20px;
  --ts-radius-pill: 999px;
  --ts-mist: radial-gradient(ellipse 70% 40% at 50% 0%, rgba(244, 63, 94, 0.07), transparent);
  --ts-text: #e2e8f0;
  --ts-text-muted: #64748b;
  --ts-text-dim: #94a3b8;
  --ts-surface-alt: rgba(255, 255, 255, 0.03);
}

/* Keep scaffold frame width */
.unix-timestamp-batch-converter-page {
  --unix-timestamp-batch-converter-frame-width: 860px;
}

.unix-timestamp-batch-converter-page .tool-frame {
  max-width: var(--unix-timestamp-batch-converter-frame-width);
}

.unix-timestamp-batch-converter-page .tool-header-block {
  max-width: none;
}

.unix-timestamp-batch-converter-page .page-subtitle {
  max-width: 44ch;
}

/* ── Header row ─────────────────────────────────────────────── */
.ts-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.ts-header-row .page-title {
  margin-bottom: 0.25rem;
}

.ts-lang-btn {
  flex-shrink: 0;
  background: transparent;
  border: var(--ts-border-thick);
  border-radius: var(--ts-radius-pill);
  color: var(--ts-accent-soft);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.75rem;
  cursor: pointer;
  transition: background 0.18s, color 0.18s;
  white-space: nowrap;
  min-height: 0;
}

.ts-lang-btn:hover {
  background: rgba(244, 63, 94, 0.12);
  color: #fff;
}

/* ── Tool UI wrapper ────────────────────────────────────────── */
.ts-ui {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ── Control area ───────────────────────────────────────────── */
.ts-control-area {
  background: var(--ts-control-bg);
  border: var(--ts-border-thick);
  border-radius: var(--ts-radius-lg);
  padding: 1.25rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ts-control-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ── Direction toggle ───────────────────────────────────────── */
.ts-direction-toggle {
  display: flex;
  gap: 0;
  border: var(--ts-border-thick);
  border-radius: var(--ts-radius-pill);
  overflow: hidden;
  flex-shrink: 0;
}

.ts-dir-btn {
  background: transparent;
  border: none;
  color: var(--ts-text-dim);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.4rem 1rem;
  cursor: pointer;
  transition: background 0.18s, color 0.18s;
  white-space: nowrap;
  min-height: 0;
}

.ts-dir-btn:hover {
  background: rgba(244, 63, 94, 0.1);
  color: var(--ts-text);
}

.ts-dir-btn--active {
  background: linear-gradient(135deg, var(--ts-accent) 0%, #e11d48 100%);
  color: #fff;
  font-weight: 600;
}

.ts-dir-btn--active:hover {
  background: linear-gradient(135deg, #fb7185 0%, var(--ts-accent) 100%);
  color: #fff;
}

/* ── Timezone selector ─────────────────────────────────────── */
.ts-tz-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.ts-tz-label {
  font-size: 0.8rem;
  color: var(--ts-text-dim);
  white-space: nowrap;
}

.ts-tz-select {
  background: rgba(255, 255, 255, 0.06);
  border: var(--ts-border-thick);
  border-radius: var(--ts-radius-pill);
  color: var(--ts-text);
  font-size: 0.8rem;
  padding: 0.35rem 0.85rem 0.35rem 0.7rem;
  cursor: pointer;
  outline: none;
  transition: border-color 0.18s, background 0.18s;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='none'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.6rem center;
  padding-right: 1.8rem;
}

.ts-tz-select:focus,
.ts-tz-select:hover {
  border-color: rgba(244, 63, 94, 0.5);
  background-color: rgba(255, 255, 255, 0.09);
}

.ts-tz-select option {
  background: #1a1d23;
  color: var(--ts-text);
}

/* ── Textarea ───────────────────────────────────────────────── */
.ts-textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 2px solid rgba(244, 63, 94, 0.18);
  border-radius: var(--ts-radius);
  color: var(--ts-text);
  font-family: "JetBrains Mono", "Fira Mono", "Consolas", monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  padding: 0.85rem 1rem;
  resize: vertical;
  outline: none;
  transition: border-color 0.18s, background 0.18s;
  box-sizing: border-box;
}

.ts-textarea::placeholder {
  color: var(--ts-text-muted);
  opacity: 0.7;
}

.ts-textarea:focus {
  border-color: rgba(244, 63, 94, 0.45);
  background: rgba(255, 255, 255, 0.06);
}

/* ── Action buttons ─────────────────────────────────────────── */
.ts-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: center;
}

.ts-btn {
  border: none;
  border-radius: var(--ts-radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 1.25rem;
  cursor: pointer;
  transition: background 0.18s, box-shadow 0.18s, transform 0.1s;
  white-space: nowrap;
  min-height: 0;
}

.ts-btn:active {
  transform: scale(0.97);
}

.ts-btn--primary {
  background: linear-gradient(135deg, var(--ts-accent) 0%, #e11d48 100%);
  color: #fff;
  margin-left: auto;
}

.ts-btn--primary:hover {
  background: linear-gradient(135deg, #fb7185 0%, var(--ts-accent) 100%);
  box-shadow: 0 0 18px rgba(244, 63, 94, 0.45);
}

.ts-btn--secondary {
  background: rgba(255, 255, 255, 0.07);
  color: var(--ts-text-dim);
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.ts-btn--secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--ts-text);
  border-color: rgba(255, 255, 255, 0.18);
}

.ts-btn--sm {
  font-size: 0.78rem;
  padding: 0.35rem 0.9rem;
}

/* ── Result area ────────────────────────────────────────────── */
.ts-result-area {
  position: relative;
  background: var(--ts-result-bg);
  border: var(--ts-border-thick);
  border-radius: var(--ts-radius-lg);
  padding: 1.25rem 1.5rem 1.5rem;
  overflow: hidden;
}

.ts-result-area::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--ts-mist);
  pointer-events: none;
  border-radius: inherit;
}

.ts-result-area:not([hidden]) {
  display: block;
}

/* ── Result header ──────────────────────────────────────────── */
.ts-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.ts-result-count {
  font-size: 0.8rem;
  color: var(--ts-text-dim);
  margin: 0;
}

/* ── Table ──────────────────────────────────────────────────── */
.ts-table-wrap {
  overflow-x: auto;
  border-radius: var(--ts-radius);
  border: 2px solid rgba(244, 63, 94, 0.12);
}

.ts-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  table-layout: auto;
}

.ts-table thead th {
  background: rgba(244, 63, 94, 0.08);
  color: var(--ts-accent-soft);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.6rem 0.85rem;
  text-align: left;
  white-space: nowrap;
  border-bottom: 2px solid rgba(244, 63, 94, 0.15);
}

.ts-table thead th:first-child {
  width: 2.5rem;
  text-align: center;
}

.ts-table tbody tr {
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transform-origin: top center;
  animation: flap-in 0.28s cubic-bezier(0.22, 1, 0.36, 1) both;
  animation-delay: calc(var(--row-index, 0) * 40ms);
}

.ts-table tbody tr:nth-child(even) {
  background: var(--ts-surface-alt);
}

.ts-table tbody tr:hover {
  background: rgba(244, 63, 94, 0.05);
}

/* Error row: amber left border */
.ts-table tbody tr.ts-row--error {
  border-left: 3px solid #f59e0b;
}

.ts-table tbody td {
  padding: 0.55rem 0.85rem;
  color: var(--ts-text);
  vertical-align: middle;
}

.ts-table tbody td:first-child {
  text-align: center;
  color: var(--ts-text-muted);
  font-size: 0.75rem;
}

.ts-table tbody td.ts-cell--input {
  font-family: "JetBrains Mono", "Fira Mono", "Consolas", monospace;
  font-size: 0.78rem;
  color: var(--ts-text-dim);
  max-width: 18rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ts-table tbody td.ts-cell--converted {
  font-size: 0.82rem;
  white-space: nowrap;
}

.ts-table tbody td.ts-cell--relative {
  white-space: nowrap;
  font-size: 0.82rem;
}

.ts-table tbody td.ts-cell--unit {
  white-space: nowrap;
}

/* Error tag */
.ts-error-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--ts-radius-pill);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 0.15rem 0.5rem;
}

/* Unit badge */
.ts-unit-badge {
  display: inline-block;
  border-radius: var(--ts-radius-pill);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.55rem;
  letter-spacing: 0.03em;
}

.ts-unit-badge--ms {
  background: rgba(244, 63, 94, 0.2);
  color: var(--ts-accent-soft);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.ts-unit-badge--s {
  background: rgba(148, 163, 188, 0.12);
  color: #94a3b8;
  border: 1px solid rgba(148, 163, 188, 0.2);
}

.ts-unit-badge--date {
  background: rgba(99, 179, 237, 0.12);
  color: #90cdf4;
  border: 1px solid rgba(99, 179, 237, 0.2);
  font-size: 0.68rem;
}

/* ── Empty input shake ──────────────────────────────────────── */
@keyframes ts-shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-6px); }
  40%       { transform: translateX(6px); }
  60%       { transform: translateX(-4px); }
  80%       { transform: translateX(4px); }
}

.ts-textarea--shake {
  animation: ts-shake 0.35s ease;
  border-color: rgba(244, 63, 94, 0.7) !important;
}

/* ── Split-flap animation ───────────────────────────────────── */
@keyframes flap-in {
  from {
    opacity: 0;
    transform: rotateX(-90deg) translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.ts-table tbody tr.ts-row--instant {
  animation-duration: 0s;
  animation-delay: 0s;
}

/* ── Sparkline ──────────────────────────────────────────────── */
.ts-sparkline-wrap {
  margin-top: 1.25rem;
  opacity: 0;
  animation: sparkline-fade 0.4s ease 0.2s forwards;
}

@keyframes sparkline-fade {
  to { opacity: 1; }
}

.ts-sparkline-label {
  font-size: 0.72rem;
  color: var(--ts-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 0.5rem 0;
}

.ts-sparkline {
  position: relative;
  height: 32px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--ts-radius);
  border: 1px solid rgba(244, 63, 94, 0.1);
  overflow: hidden;
}

.ts-spark-dot {
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ts-accent-soft);
  transform: translate(-50%, -50%);
  opacity: 0.75;
  transition: opacity 0.18s;
  box-shadow: 0 0 6px rgba(251, 113, 133, 0.5);
}

.ts-spark-dot:hover {
  opacity: 1;
}

.ts-spark-dot--error {
  background: #f59e0b;
  box-shadow: 0 0 4px rgba(245, 158, 11, 0.4);
}

/* ── Copy feedback ──────────────────────────────────────────── */
.ts-btn--copied {
  background: rgba(34, 197, 94, 0.2) !important;
  color: #86efac !important;
  border-color: rgba(34, 197, 94, 0.3) !important;
}

/* ── Tool discovery cards ───────────────────────────────────── */
.tool-discovery-block {
  margin-top: 2rem;
}

.tool-discovery-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.tool-discovery-card {
  background: var(--ts-result-bg);
  border: var(--ts-border-thick);
  border-radius: var(--ts-radius);
  padding: 1rem 1.1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.tool-discovery-card__step {
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  background: linear-gradient(135deg, var(--ts-accent) 0%, #e11d48 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
}

.tool-discovery-card__text {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ts-text-dim);
  line-height: 1.5;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 600px) {
  .ts-control-top {
    flex-direction: column;
    align-items: stretch;
  }

  .ts-direction-toggle {
    width: 100%;
  }

  .ts-dir-btn {
    flex: 1;
    text-align: center;
  }

  .ts-tz-group {
    margin-left: 0;
    justify-content: space-between;
  }

  .ts-tz-select {
    flex: 1;
  }

  .ts-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .ts-btn--primary {
    margin-left: 0;
    order: -1;
  }

  .ts-table-wrap {
    overflow-x: scroll;
    -webkit-overflow-scrolling: touch;
  }

  .ts-table {
    min-width: 580px;
  }

  .tool-discovery-cards {
    grid-template-columns: 1fr;
  }

  .ts-header-row {
    align-items: center;
  }
}

@media (max-width: 400px) {
  .ts-control-area,
  .ts-result-area {
    padding: 1rem;
  }
}