:root {
  --bg: #14181f;
  --bg-elevated: #1c222c;
  --bg-elevated-2: #232a36;
  --border: #2e3746;
  --text: #e7ebf2;
  --text-dim: #9aa5b6;
  --text-faint: #6b7688;
  --accent: #5aa9e6;
  --accent-dim: #2e4a63;
  --good: #6fcf97;
  --warn: #e0b04a;
  --heal: #6fcf97;
  --damage: #e2685b;
  --buff: #b48ff0;
  --fallback: #8a93a3;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.4;
}

.app-header {
  padding: 24px clamp(16px, 4vw, 48px) 12px;
  border-bottom: 1px solid var(--border);
}

.app-header h1 {
  margin: 0 0 4px;
  font-size: 1.6rem;
  letter-spacing: 0.01em;
}

.subtitle {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}

main {
  padding: 20px clamp(16px, 4vw, 48px) 60px;
  max-width: 1200px;
  margin: 0 auto;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 16px;
}

.controls-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.control-block h2 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin: 0 0 10px;
  font-weight: 600;
}

.hint {
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
  color: var(--text-faint);
  font-size: 0.75rem;
}

.hint.small {
  display: block;
  margin: 6px 2px 0;
  font-size: 0.72rem;
}

.class-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.class-table td {
  border: 1px solid var(--border);
  padding: 0;
}

.class-chip {
  display: block;
  width: 100%;
  border: none;
  border-radius: 0;
  background: var(--bg-elevated-2);
  color: var(--text-dim);
  padding: 10px 8px;
  font-size: 0.82rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.12s ease;
  user-select: none;
}

.class-chip:hover {
  color: var(--text);
  background: var(--bg-elevated);
}

.class-chip.selected {
  background: var(--accent-dim);
  color: #fff;
  font-weight: 600;
}

.class-chip.disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.class-chip.non-caster {
  color: var(--text-faint);
  font-style: italic;
}

.class-chip.non-caster.selected {
  background: var(--bg-elevated-2);
  color: var(--text-dim);
}

.level-control {
  display: flex;
  align-items: center;
  gap: 12px;
}

#level-slider {
  flex: 1;
  accent-color: var(--accent);
}

#level-number {
  width: 60px;
  background: var(--bg-elevated-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 0.9rem;
}

.ranking-toggle {
  display: flex;
  gap: 6px;
}

.toggle-btn {
  flex: 1;
  border: 1px solid var(--border);
  background: var(--bg-elevated-2);
  color: var(--text-dim);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.12s ease;
}

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

.toggle-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-dim);
  cursor: pointer;
  user-select: none;
}

.checkbox-row input[type="checkbox"] {
  accent-color: var(--accent);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

#search-box {
  width: 100%;
  background: var(--bg-elevated-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 0.85rem;
}

#search-box:focus, #level-number:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.summary-bar {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: 4px 4px 18px;
}

.level-gains {
  background: var(--bg-elevated);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  margin-bottom: 22px;
  overflow: hidden;
}

.level-gains summary {
  cursor: pointer;
  list-style: none;
  padding: 12px 16px;
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  gap: 8px;
  user-select: none;
  transition: background 0.12s ease;
}

.level-gains summary:hover {
  background: var(--accent);
}

.level-gains summary::-webkit-details-marker {
  display: none;
}

.level-gains summary::before {
  content: "▸";
  font-size: 0.75rem;
  transition: transform 0.12s ease;
}

.level-gains[open] summary::before {
  transform: rotate(90deg);
}

#level-gains-content {
  padding: 16px;
}

#level-gains-content .category-group:last-child {
  margin-bottom: 0;
}

#level-gains-content .empty-state {
  padding: 4px 0;
  text-align: left;
}

.category-group {
  margin-bottom: 22px;
}

.category-group h3 {
  font-size: 1.05rem;
  margin: 0 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.spell-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 10px;
}

.spell-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  box-shadow: var(--shadow);
}

.spell-card.top-pick {
  background: linear-gradient(160deg, rgba(224, 176, 74, 0.16), var(--bg-elevated) 65%);
  border-color: var(--warn);
  box-shadow: 0 0 0 1px rgba(224, 176, 74, 0.25), var(--shadow);
}

.top-pick-badge {
  display: inline-block;
  color: var(--warn);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 8px;
}

.spell-card.second-best {
  background: linear-gradient(160deg, rgba(90, 169, 230, 0.12), var(--bg-elevated) 65%);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(90, 169, 230, 0.2), var(--shadow);
}

.second-best-badge {
  display: inline-block;
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 8px;
}

.spell-card-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}

.spell-name {
  font-weight: 600;
  font-size: 0.98rem;
}

.subcat-label {
  font-size: 0.72rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.spell-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.spell-meta strong {
  color: var(--text);
}

.metric-pill {
  display: inline-block;
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 0.76rem;
  font-weight: 600;
  white-space: nowrap;
}

.metric-pill.heal { background: rgba(111,207,151,0.16); color: var(--heal); }
.metric-pill.dot, .metric-pill.damage { background: rgba(226,104,91,0.16); color: var(--damage); }
.metric-pill.buff { background: rgba(180,143,240,0.16); color: var(--buff); }
.metric-pill.fallback { background: rgba(138,147,163,0.16); color: var(--fallback); }

.spell-effect {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin: 0;
}

.empty-state {
  color: var(--text-dim);
  text-align: center;
  padding: 60px 20px;
  font-size: 0.95rem;
}

.app-footer {
  text-align: center;
  color: var(--text-faint);
  font-size: 0.75rem;
  padding: 20px;
  border-top: 1px solid var(--border);
}

@media (max-width: 520px) {
  .spell-card-head { flex-direction: column; gap: 2px; }
}