/*
 * Depends on:
 * - index.html app shell tokens: --bg-white, --border-light, --text-*, --accent, --radius
 * - Metadata DOM ids/classes rendered by index.html: #tab-metadata, .metadata-*, .meta-*
 */

#tab-metadata .metadata-workspace {
  padding: 0;
  overflow: hidden;
  border-color: rgba(24, 24, 27, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), #fff 42%),
    radial-gradient(circle at 0 0, rgba(255, 0, 0, 0.055), transparent 34%);
}

.metadata-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 22px 24px;
  border-bottom: 1px solid var(--border-light);
  background:
    linear-gradient(135deg, rgba(255, 0, 0, 0.04), rgba(255, 255, 255, 0) 48%),
    #fff;
}

.metadata-hero h1 {
  margin: 0;
  color: var(--accent);
  font-size: clamp(0.86rem, 1.05vw, 1rem);
  font-weight: 850;
  letter-spacing: 0;
  line-height: 1.2;
  text-transform: uppercase;
}

.metadata-hero p {
  max-width: 720px;
  margin: 6px 0 0;
  color: var(--text-secondary);
  font-size: 0.78rem;
  line-height: 1.5;
}

.meta-action-btn {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border: 1px solid rgba(255, 0, 0, 0.18);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 850;
  line-height: 1;
  white-space: nowrap;
  transition: all 0.18s ease;
}

.meta-action-primary {
  background: linear-gradient(135deg, #ff0000, #d91414);
  color: #fff;
  box-shadow: 0 10px 22px rgba(255, 0, 0, 0.17);
}

.meta-action-btn:hover {
  transform: translateY(-1px);
}

.meta-input-card,
.meta-result-card,
.meta-progress {
  margin: 18px 24px 0;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 8px 22px rgba(17, 24, 39, 0.04);
}

.meta-input-card,
.meta-result-card {
  padding: 18px 18px 20px;
}

.meta-result-card {
  display: grid;
  gap: 10px;
}

.meta-result-card:last-child {
  margin-bottom: 24px;
}

.meta-progress {
  padding: 18px;
}

.meta-progress .progress-text {
  margin-top: 9px;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 750;
}

.meta-section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 12px;
}

.meta-section-kicker {
  margin-bottom: 4px;
  color: var(--accent);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1;
  text-transform: uppercase;
}

.meta-section-title {
  color: var(--text-primary);
  font-size: 1.02rem;
  font-weight: 850;
  line-height: 1.25;
}

.meta-field {
  display: grid;
  gap: 8px;
}

.meta-field label {
  display: block;
  margin: 0;
  color: var(--text-muted);
  font-size: 0.68rem;
  font-weight: 850;
  line-height: 1.2;
  text-transform: uppercase;
}

.meta-block label {
  display: block;
  margin: 0;
  color: #3f3f46;
  font-size: 0.84rem;
  font-weight: 850;
  line-height: 1.28;
  text-transform: none;
}

.meta-field textarea,
.meta-block textarea,
.meta-block input {
  width: 100%;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  background: #fff;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.84rem;
  line-height: 1.55;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.meta-field textarea {
  min-height: 126px;
  padding: 13px 14px;
  resize: vertical;
}

.meta-block textarea {
  padding: 11px 12px;
  resize: vertical;
}

.meta-block input {
  min-height: 40px;
  padding: 0 12px;
}

.meta-field textarea:focus,
.meta-block textarea:focus,
.meta-block input:focus {
  border-color: rgba(255, 0, 0, 0.28);
  box-shadow: 0 0 0 3px rgba(255, 0, 0, 0.055);
}

.meta-block {
  margin: 0;
  padding: 14px;
  border: 1px solid rgba(17, 24, 39, 0.065);
  border-radius: var(--radius);
  background: rgba(248, 249, 250, 0.72);
}

.meta-thumb-block {
  padding-bottom: 18px;
}

.meta-block-strong {
  background: #fff;
}

.meta-block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 12px;
}

.meta-heading-stack {
  display: grid;
  min-width: 0;
  gap: 4px;
}

.meta-inline-actions {
  display: flex;
  flex-wrap: wrap;
  flex: 0 0 auto;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
}

.meta-title-option {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  column-gap: 9px;
  row-gap: 1px;
  align-items: center;
  margin-bottom: 6px;
  padding: 10px 11px;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.meta-title-option input[type="radio"],
.meta-title-rank {
  margin-top: 0;
}

.meta-title-option:last-child {
  margin-bottom: 0;
}

.meta-title-option:hover {
  border-color: rgba(255, 0, 0, 0.2);
}

.meta-title-option.selected {
  border-color: rgba(255, 0, 0, 0.26);
  background: rgba(255, 0, 0, 0.035);
  box-shadow: 0 8px 18px rgba(17, 24, 39, 0.04);
}

.meta-title-option input[type="radio"] {
  grid-column: 3;
  grid-row: 1 / span 2;
  justify-self: end;
  align-self: center;
  accent-color: var(--accent);
}

.meta-title-rank {
  grid-column: 1;
  grid-row: 1;
  color: var(--text-secondary);
  font-size: 0.76rem;
  font-weight: 850;
  align-self: center;
}

.meta-title-text {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
  color: var(--text-primary);
  font-size: 0.84rem;
  font-weight: 800;
  line-height: 1.2;
}

.meta-title-reason {
  grid-column: 2;
  grid-row: 2;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.18;
}

.meta-title-status-line {
  margin: -2px 0 10px;
  padding: 7px 9px;
  border: 1px solid rgba(17, 24, 39, 0.06);
  border-radius: 8px;
  background: #fff;
  color: var(--text-muted);
  font-size: 0.74rem;
  font-weight: 750;
  line-height: 1.45;
}

.meta-title-status-line:empty {
  display: none;
}

.meta-review-copy {
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 650;
  line-height: 1.55;
}

.thumb-option {
  margin-bottom: 0;
  padding: 10px;
  border: 1px solid rgba(17, 24, 39, 0.065);
  border-radius: 10px;
  background: #fff;
}

#metaThumbOptions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding-bottom: 2px;
}

.thumb-option-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.thumb-rank-line {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 7px;
}

.thumb-rank {
  flex: 0 0 auto;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 850;
  line-height: 1;
}

.thumb-meta {
  min-width: 0;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 750;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.thumb-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 6px;
}

.thumb-main {
  border-radius: 10px;
  background: #191919;
  color: #fff;
  font-size: 0.92rem;
  font-weight: 850;
  line-height: 1.25;
}

.meta-translate-card {
  margin-top: 2px;
  padding: 16px;
  border: 1px solid rgba(255, 0, 0, 0.09);
  border-radius: var(--radius);
  background: rgba(255, 0, 0, 0.025);
}

.meta-translate-card .lang-grid,
#tab-subtitle .lang-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(142px, 1fr));
  gap: 8px;
}

.meta-translate-card .lang-item,
#tab-subtitle .lang-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 38px;
  margin: 0;
  padding: 0 10px 0 14px;
  border: 1px solid var(--border-light);
  border-radius: 999px;
  background: #fff;
  transition: border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.meta-translate-card .lang-item:hover,
#tab-subtitle .lang-item:hover {
  border-color: rgba(255, 0, 0, 0.18);
  box-shadow: 0 8px 16px rgba(17, 24, 39, 0.04);
}

.meta-translate-card .lang-item:has(input:checked),
#tab-subtitle .lang-item:has(input:checked) {
  border-color: rgba(255, 0, 0, 0.2);
  background: rgba(255, 0, 0, 0.035);
}

.meta-translate-card .lang-item label,
#tab-subtitle .lang-item label {
  order: 1;
  flex: 1 1 auto;
  min-width: 0;
  color: var(--text-secondary);
  font-size: 0.74rem;
  font-weight: 800;
  line-height: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.meta-translate-card .lang-item input,
#tab-subtitle .lang-item input {
  display: grid;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  order: 2;
  place-content: center;
  margin: 0;
  border: 1px solid rgba(17, 24, 39, 0.13);
  border-radius: 50%;
  appearance: none;
  background: #eef0f2;
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.meta-translate-card .lang-item input::after,
#tab-subtitle .lang-item input::after {
  width: 5px;
  height: 9px;
  margin-top: -1px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  content: "";
  opacity: 0;
  transform: rotate(45deg) scale(0.85);
  transition: opacity 0.18s ease;
}

.meta-translate-card .lang-item input:checked,
#tab-subtitle .lang-item input:checked {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 6px 14px rgba(255, 0, 0, 0.16);
}

.meta-translate-card .lang-item input:checked::after,
#tab-subtitle .lang-item input:checked::after {
  opacity: 1;
}

.meta-translate-card .lang-item input:focus-visible,
#tab-subtitle .lang-item input:focus-visible {
  outline: 3px solid rgba(255, 0, 0, 0.12);
  outline-offset: 2px;
}

.meta-action-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 12px;
}

.meta-lang-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

#metaResultContent {
  display: grid;
  gap: 10px;
}

.meta-output-title,
.meta-output-thumb,
.meta-output-description {
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.55;
  padding: 2px 0 1px;
}

.meta-output-title,
.meta-output-thumb {
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 850;
}

.meta-output-description {
  padding-top: 3px;
  white-space: pre-wrap;
}

#tab-metadata .helper-text {
  margin: 0 0 12px;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.35;
}

.meta-heading-stack .helper-text {
  margin: 0;
}

#tab-metadata .helper-text + textarea,
#tab-metadata .helper-text + input,
#tab-metadata .helper-text + #metaThumbOptions {
  margin-top: 0;
}

#tab-metadata .btn-copy,
#tab-metadata .btn-sm {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
}

@media (max-width: 900px) {
  .metadata-hero,
  .meta-section-head {
    grid-template-columns: 1fr;
  }

  .metadata-hero {
    padding: 18px;
  }

  .meta-action-btn {
    width: 100%;
  }

  .meta-input-card,
  .meta-result-card,
  .meta-progress {
    margin-left: 18px;
    margin-right: 18px;
  }

  .meta-section-head {
    flex-direction: column;
  }

  .meta-inline-actions,
  .meta-action-row {
    width: 100%;
    justify-content: flex-start;
  }

  .meta-title-option {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }
}