/* ============ Benchmarks Page Styles ============ */

/* Nav links in header */
.nav-links {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 16px;
}

.nav-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 5px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.nav-link.active {
  background: rgba(45, 125, 210, 0.08);
  border-color: rgba(45, 125, 210, 0.35);
  color: var(--accent-ar);
  font-weight: 600;
}

/* Stat card colors for benchmarks */
.stat-card.bm-understand .stat-number { color: var(--accent-ar); }
.stat-card.bm-generate .stat-number { color: var(--accent-diff); }

/* View toggle */
.view-toggle {
  display: flex;
  gap: 3px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px;
}

.view-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 13px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-family: var(--font);
  font-weight: 500;
  border-radius: 5px;
  cursor: pointer;
  transition: var(--transition);
}

.view-btn:hover {
  color: var(--text-primary);
}

.view-btn.active {
  background: var(--bg-card);
  color: var(--accent-ar);
  border: 1px solid rgba(45, 125, 210, 0.3);
}

/* Tab dots for benchmarks */
.tab-dot.bm-u { background: var(--accent-ar); }
.tab-dot.bm-g { background: var(--accent-diff); }

/* ============ Tree View ============ */
.bm-tree-view {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Level 1: Understanding / Generation */
.bm-l1 {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(45, 100, 160, 0.06);
}

.bm-l1-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.bm-l1-header:hover {
  background: var(--bg-card-hover);
}

.bm-l1-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.bm-l1-title {
  font-size: 17px;
  font-weight: 600;
  text-transform: capitalize;
  flex: 1;
  color: var(--text-primary);
}

.bm-l1-count {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.bm-l1-arrow {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.bm-l1.open .bm-l1-arrow {
  transform: rotate(180deg);
}

.bm-l1-body {
  display: none;
  padding: 0 20px 18px;
}

.bm-l1.open .bm-l1-body {
  display: block;
}

.bm-l1.understand .bm-l1-header { border-left: 3px solid var(--accent-ar); }
.bm-l1.generate .bm-l1-header { border-left: 3px solid var(--accent-diff); }

/* Level 2: single modal / multimodal */
.bm-l2 {
  margin-top: 10px;
}

.bm-l2-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.bm-l2-header:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.bm-l2-icon {
  font-size: 15px;
  color: var(--text-muted);
}

.bm-l2-title {
  font-size: 14px;
  font-weight: 600;
  text-transform: capitalize;
  flex: 1;
  color: var(--text-primary);
}

.bm-l2-count {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.bm-l2-arrow {
  width: 15px;
  height: 15px;
  color: var(--text-muted);
  transition: transform 0.2s ease;
}

.bm-l2.open .bm-l2-arrow {
  transform: rotate(180deg);
}

.bm-l2-body {
  display: none;
  padding-left: 14px;
  margin-top: 6px;
}

.bm-l2.open .bm-l2-body {
  display: block;
}

/* Level 3: modality groups */
.bm-l3 {
  margin-top: 6px;
}

.bm-l3-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  cursor: pointer;
  border-radius: 6px;
  transition: var(--transition);
  user-select: none;
}

.bm-l3-header:hover {
  background: rgba(45, 125, 210, 0.04);
}

.bm-l3-badge {
  font-size: 11px;
  font-weight: 500;
  padding: 2px 9px;
  border-radius: 4px;
  text-transform: capitalize;
}

.bm-l3-badge.image { background: rgba(45,125,210,0.10); color: #2d7dd2; border: 1px solid rgba(45,125,210,0.22); }
.bm-l3-badge.audio { background: rgba(234,148,0,0.10); color: #c47f00; border: 1px solid rgba(234,148,0,0.22); }
.bm-l3-badge.text  { background: rgba(100,120,140,0.08); color: #6a8099; border: 1px solid rgba(100,120,140,0.18); }
.bm-l3-badge.video { background: rgba(220,60,60,0.09); color: #c04040; border: 1px solid rgba(220,60,60,0.20); }
.bm-l3-badge.others { background: rgba(15,168,116,0.10); color: #0a8f62; border: 1px solid rgba(15,168,116,0.22); }
.bm-l3-badge.image\+text,
.bm-l3-badge[class*="image+"] { background: rgba(45,125,210,0.10); color: #2d7dd2; border: 1px solid rgba(45,125,210,0.22); }
.bm-l3-badge.audio\+text,
.bm-l3-badge[class*="audio+"] { background: rgba(234,148,0,0.10); color: #c47f00; border: 1px solid rgba(234,148,0,0.22); }
.bm-l3-badge.video\+text,
.bm-l3-badge[class*="video+"] { background: rgba(220,60,60,0.09); color: #c04040; border: 1px solid rgba(220,60,60,0.20); }

.bm-l3-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  flex: 1;
}

.bm-l3-count {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.bm-l3-arrow {
  width: 13px;
  height: 13px;
  color: var(--text-muted);
  transition: transform 0.2s ease;
}

.bm-l3.open .bm-l3-arrow {
  transform: rotate(180deg);
}

.bm-l3-body {
  display: none;
  padding-left: 18px;
  margin-top: 4px;
}

.bm-l3.open .bm-l3-body {
  display: block;
}

/* Level 4: Task cards */
.bm-task {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 10px 14px;
  margin: 5px 0;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.bm-task:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.bm-task-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.bm-task-benchmarks {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.bm-chip {
  font-size: 11px;
  padding: 2px 9px;
  border-radius: 4px;
  background: rgba(45, 125, 210, 0.06);
  color: #2d6fad;
  border: 1px solid rgba(45, 125, 210, 0.18);
  font-family: var(--font-mono);
  font-weight: 400;
  transition: var(--transition);
  cursor: default;
}

.bm-chip:hover {
  background: rgba(45, 125, 210, 0.11);
  border-color: rgba(45, 125, 210, 0.32);
  color: #1a5fa0;
}

.generate .bm-chip {
  background: rgba(15, 168, 116, 0.07);
  color: #0a8f62;
  border-color: rgba(15, 168, 116, 0.20);
}

.generate .bm-chip:hover {
  background: rgba(15, 168, 116, 0.13);
  border-color: rgba(15, 168, 116, 0.35);
  color: #077a52;
}

/* ============ Table View ============ */
.bm-table-view {
  overflow-x: auto;
}

.bm-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.bm-table th {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 9px 14px;
  text-align: left;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.bm-table td {
  border: 1px solid var(--border);
  padding: 9px 14px;
  vertical-align: top;
  color: var(--text-primary);
  background: var(--bg-card);
}

.bm-table tr:hover td {
  background: var(--bg-card-hover);
}

.bm-table .l1-cell {
  font-weight: 600;
  text-transform: capitalize;
}

.bm-table .l1-cell.understand { color: var(--accent-ar); }
.bm-table .l1-cell.generate { color: var(--accent-diff); }

.bm-table .l2-cell {
  color: var(--text-secondary);
  text-transform: capitalize;
}

.bm-table .l3-cell {
  font-weight: 500;
}

.bm-table .l4-cell {
  font-weight: 600;
}

.bm-table .bm-cell {
  max-width: 400px;
}

.bm-table .bm-cell .bm-chip {
  font-size: 11px;
  padding: 2px 7px;
}

/* ============ Search highlight ============ */
.bm-highlight {
  background: rgba(234, 148, 0, 0.18);
  color: #9a6200;
  border-radius: 2px;
  padding: 0 2px;
}

/* ============ No results ============ */
.bm-no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.bm-no-results-icon { font-size: 40px; margin-bottom: 12px; }
.bm-no-results-text { font-size: 15px; color: var(--text-secondary); margin-bottom: 4px; }
.bm-no-results-hint { font-size: 13px; }

/* ============ Responsive ============ */
@media (max-width: 768px) {
  .bm-l1-header { padding: 12px 16px; }
  .bm-l1-title { font-size: 15px; }
  .bm-l1-body { padding: 0 14px 14px; }
  .bm-task { padding: 8px 11px; }
  .view-toggle { display: none; }
  .filter-group { flex-direction: column; align-items: flex-start; }
}