/* ==========================================================================
   Phrasebook Hub (/phrasebook/) Styles
   ========================================================================== */

.phrasebook-hero {
  margin-bottom: 24px;
  background: linear-gradient(135deg, rgba(8, 127, 109, 0.08), rgba(245, 158, 11, 0.05));
  border: 1px solid var(--line);
  padding: 32px 28px;
  border-radius: 18px;
}

.pb-hero-content h1 {
  font-size: 26px;
  font-weight: 800;
  margin: 6px 0 12px;
  color: var(--ink);
  line-height: 1.3;
}

.pb-hero-content p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
  max-width: 780px;
  margin-bottom: 20px;
}

.pb-hero-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.pb-stat-box {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 10px 18px;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
}

.pb-stat-box strong {
  font-size: 20px;
  font-weight: 800;
  color: var(--jade);
}

.pb-stat-box span {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Toolbar */
.pb-toolbar {
  margin-bottom: 24px;
  padding: 16px 20px;
  border-radius: 16px;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pb-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.pb-search-wrap svg {
  position: absolute;
  left: 14px;
  width: 18px;
  height: 18px;
  stroke: var(--muted);
  pointer-events: none;
}

.pb-search-input {
  width: 100%;
  padding: 12px 14px 12px 42px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.pb-search-input:focus {
  border-color: var(--jade);
  box-shadow: 0 0 0 3px rgba(8, 127, 109, 0.15);
}

.pb-chips-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.pb-filter-chip {
  white-space: nowrap;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.pb-filter-chip:hover {
  border-color: var(--jade);
  background: rgba(8, 127, 109, 0.05);
}

.pb-filter-chip.is-active {
  background: var(--jade);
  color: #fff;
  border-color: var(--jade);
}

.pb-chip-count {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.08);
}

.pb-filter-chip.is-active .pb-chip-count {
  background: rgba(255, 255, 255, 0.25);
  color: #fff;
}

/* Grid & Card */
.pb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.pb-card {
  padding: 18px 20px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--card);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.pb-card:hover {
  transform: translateY(-2px);
  border-color: rgba(8, 127, 109, 0.4);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
}

.pb-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.pb-topic-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--jade);
  background: rgba(8, 127, 109, 0.08);
  padding: 2px 8px;
  border-radius: 6px;
}

.pb-card-actions {
  display: flex;
  gap: 4px;
}

.pb-card-actions .icon-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--bg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  transition: all 0.15s ease;
}

.pb-card-actions .icon-btn:hover {
  border-color: var(--jade);
  color: var(--jade);
  background: rgba(8, 127, 109, 0.08);
}

.pb-hanzi-row {
  margin-bottom: 6px;
}

.pb-hanzi {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  display: block;
  line-height: 1.4;
}

.pb-pinyin {
  font-size: 13px;
  color: var(--jade);
  font-weight: 600;
  display: block;
  margin-top: 2px;
}

.pb-meaning {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  margin: 6px 0 10px;
  line-height: 1.5;
}

.pb-context {
  margin-top: auto;
  font-size: 12px;
  color: var(--muted);
  background: var(--bg);
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px dashed var(--line);
  display: flex;
  gap: 6px;
  align-items: flex-start;
  line-height: 1.45;
}

.pb-context-icon {
  flex-shrink: 0;
}

.pb-empty-notice {
  text-align: center;
  padding: 36px 20px;
  font-size: 14px;
  color: var(--muted);
  border-radius: 14px;
}

/* Dark Mode */
html[data-theme="dark"] .phrasebook-hero {
  background: linear-gradient(135deg, rgba(8, 127, 109, 0.15), rgba(245, 158, 11, 0.08));
}

html[data-theme="dark"] .pb-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

@media (max-width: 640px) {
  .pb-grid {
    grid-template-columns: 1fr;
  }
  .pb-hero-content h1 {
    font-size: 22px;
  }
}