/* Hanzi 3000 Hub (3.000 Chữ Hán HSK 3.0) Styles for DR Dragon */

.hanzi-hero {
  position: relative;
  overflow: hidden;
  margin-bottom: 24px;
}

.hanzi-hero-badge {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.hanzi-hero h1 {
  font-size: 26px;
  margin: 0;
  line-height: 1.25;
}

.hanzi-hero-desc {
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 820px;
  margin-bottom: 20px;
}

.hanzi-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.hanzi-kpi-grid .kpi-card {
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--paper-warm);
  border: 1px solid var(--line);
  text-align: center;
}

.hanzi-kpi-grid .kpi-value {
  font-size: 24px;
  font-weight: 750;
  color: var(--jade);
  line-height: 1.1;
  margin-bottom: 4px;
}

.hanzi-kpi-grid .kpi-label {
  font-size: 11px;
  color: var(--muted);
}

/* Hanzi Toolbar */
.hanzi-filter-toolbar {
  padding: 18px 20px;
  margin-bottom: 20px;
}

.hanzi-level-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.hanzi-search-row {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.hanzi-search-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 260px;
}

.hanzi-search-input-wrap .icon {
  position: absolute;
  left: 14px;
  color: var(--muted);
  pointer-events: none;
}

.hanzi-search-input-wrap input {
  width: 100%;
  padding: 12px 16px 12px 42px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  font-size: 13px;
  color: var(--ink);
}

.hanzi-search-input-wrap input:focus {
  outline: none;
  border-color: var(--jade);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.hanzi-active-filter-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  background: var(--soft);
  color: var(--jade);
  font-size: 11px;
  font-weight: 600;
  border: 1px solid var(--jade-soft);
}

.clear-filter-btn {
  background: transparent;
  border: none;
  font-size: 16px;
  cursor: pointer;
  line-height: 1;
  color: var(--jade);
  padding: 0 2px;
}

.hanzi-results-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  font-size: 12px;
  color: var(--muted);
  flex-wrap: wrap;
  gap: 10px;
}

.hanzi-view-options {
  display: flex;
  align-items: center;
  gap: 6px;
}

.view-label {
  font-size: 11px;
  color: var(--muted);
}

/* Hanzi Grid */
.hanzi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-bottom: 36px;
}

.hanzi-grid.is-compact {
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.hanzi-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.hanzi-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
  border-color: var(--jade-soft);
}

.hanzi-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.hanzi-level-tag {
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--soft);
  color: var(--jade);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.hanzi-radical-pill {
  font-size: 10px;
  color: var(--muted);
  text-decoration: none;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--paper-warm);
  border: 1px solid var(--line);
  transition: all 0.2s;
}

.hanzi-radical-pill:hover {
  color: var(--jade);
  border-color: var(--jade);
}

.hanzi-glyph-wrap {
  text-align: center;
  padding: 6px 0;
}

.hanzi-glyph {
  font-size: 54px;
  font-family: 'Noto Serif SC', 'Songti SC', serif;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.1;
  transition: transform 0.2s;
}

.hanzi-card:hover .hanzi-glyph {
  transform: scale(1.05);
}

.hanzi-pinyin-wrap {
  text-align: center;
  margin-bottom: 8px;
}

.hanzi-pinyin {
  font-size: 15px;
  color: var(--jade);
  letter-spacing: 0.02em;
}

.hanzi-meanings-box {
  margin-bottom: 10px;
  min-height: 38px;
}

.hanzi-meaning-text {
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.hanzi-example-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border-radius: 8px;
  background: var(--paper-warm);
  font-size: 11px;
  margin-bottom: 12px;
}

.ex-hanzi {
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 600;
  color: var(--ink);
}

.ex-vi {
  color: var(--muted);
  font-size: 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hanzi-card-actions {
  margin-top: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.hanzi-card-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 11px;
  padding: 6px 10px;
}

.hanzi-card-actions .icon {
  width: 14px;
  height: 14px;
}

/* Compact Mode */
.hanzi-grid.is-compact .hanzi-meaning-text,
.hanzi-grid.is-compact .hanzi-example-chip {
  display: none;
}

.hanzi-grid.is-compact .hanzi-glyph {
  font-size: 40px;
}

.hanzi-grid.is-compact .hanzi-card-actions {
  grid-template-columns: 1fr;
}

/* Guide Article & SEO */
.hanzi-guide-article {
  padding: 28px 24px;
  margin-top: 24px;
}

.guide-badge-row h2 {
  font-size: 20px;
  margin: 6px 0 20px;
}

.guide-content-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.guide-card {
  padding: 18px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--line);
}

.guide-step-num {
  font-size: 18px;
  font-weight: 800;
  color: var(--jade);
  opacity: 0.7;
  margin-bottom: 8px;
}

.guide-card h3 {
  font-size: 14px;
  margin: 0 0 8px;
}

.guide-card p {
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

.hanzi-faq-wrap h3 {
  font-size: 16px;
  margin: 0 0 14px;
}

/* Responsive */
@media (max-width: 768px) {
  .hanzi-kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .guide-content-grid {
    grid-template-columns: 1fr;
  }
  .hanzi-grid {
    grid-template-columns: 1fr;
  }
}