:root {
  color-scheme: dark;
  --bg: #0b1020;
  --card: #141c2e;
  --row: #0f1628;
  --text: #e8eefc;
  --muted: #9aa8c7;
  --accent: #f5c542;
  --accent-dim: rgba(245, 197, 66, 0.12);
  --border: #24304a;
  --high: #ff6b6b;
  --medium: #f5c542;
  --low: #6bcb77;
  --info: #8ec5ff;
  --stadium: #1a2744;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, var(--stadium) 0%, var(--bg) 55%);
  color: var(--text);
  line-height: 1.45;
}

.page {
  width: min(52rem, 100%);
  margin: 0 auto;
  padding: 1.25rem 1rem 2.5rem;
}

.hero {
  margin-bottom: 1.1rem;
}

.eyebrow {
  margin: 0 0 0.25rem;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0 0 0.35rem;
  font-size: 1.65rem;
  letter-spacing: 0.02em;
}

.subtitle {
  margin: 0 0 0.35rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.meta-line {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
  opacity: 0.95;
}

/* Tabs */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1rem;
}

.tab {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--row);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-size: 0.82rem;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.tab:hover,
.tab:focus-visible {
  border-color: var(--accent);
  color: var(--text);
  outline: none;
}

.tab.active {
  border-color: var(--accent);
  color: var(--bg);
  background: var(--accent);
  font-weight: 600;
}

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem;
  margin-bottom: 1rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
}

.panel-head {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.panel-head h2 {
  margin: 0;
  font-size: 1.05rem;
}

.count {
  font-size: 0.8rem;
  color: var(--muted);
}

.view[hidden] {
  display: none !important;
}

/* Builder selects */
.builder-grid {
  display: grid;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .builder-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.field label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.field input[type="search"],
.field select {
  width: 100%;
  background: var(--row);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 0.65rem;
  padding: 0.55rem 0.7rem;
  font: inherit;
  font-size: 0.92rem;
}

.field input[type="search"] {
  appearance: none;
}

/* Native dropdowns — keep options readable on dark theme (listboxes were unpickable) */
.field select {
  appearance: auto;
  -webkit-appearance: menulist;
  cursor: pointer;
  min-height: 2.6rem;
}

.field select option {
  background: #121826;
  color: #e8eefc;
}

.field input[type="search"]:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
}

.field select {
  margin-top: 0.35rem;
  cursor: pointer;
}

.field .hint {
  margin: 0.3rem 0 0;
  font-size: 0.75rem;
  color: var(--muted);
}

/* Results */
.results {
  margin-top: 1rem;
}

.results.empty-state {
  color: var(--muted);
  font-size: 0.92rem;
  padding: 0.5rem 0;
}

.combo-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.85rem;
}

.combo-title h3 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 650;
}

.grade-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.1rem;
  height: 2.1rem;
  border-radius: 0.55rem;
  font-weight: 800;
  font-size: 1.05rem;
  border: 1px solid transparent;
  background: var(--accent-dim);
  color: var(--accent);
}

.role-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--info);
  background: rgba(142, 197, 255, 0.1);
  border: 1px solid rgba(142, 197, 255, 0.35);
  border-radius: 0.35rem;
  padding: 0.15rem 0.45rem;
}

.score-grid {
  display: grid;
  gap: 0.65rem;
  margin-bottom: 0.9rem;
}

@media (min-width: 520px) {
  .score-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.score-card {
  background: var(--row);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 0.75rem 0.85rem;
}

.score-card .label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin: 0 0 0.35rem;
}

.score-card .value {
  font-size: 1.45rem;
  font-weight: 700;
  margin: 0;
  font-variant-numeric: tabular-nums;
}

.bar {
  margin-top: 0.45rem;
  height: 0.35rem;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  overflow: hidden;
}

.bar > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #e8a838);
  border-radius: 999px;
  width: 0%;
  transition: width 0.25s ease;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.85rem;
}

.meta-row strong {
  color: var(--text);
  font-weight: 600;
}

.notes-grid {
  display: grid;
  gap: 0.65rem;
}

@media (min-width: 520px) {
  .notes-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.note-box {
  background: var(--row);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 0.75rem 0.85rem;
}

.note-box h4 {
  margin: 0 0 0.4rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--low);
}

.note-box.risks h4 {
  color: var(--high);
}

.note-box ul {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.86rem;
  color: var(--muted);
}

.note-box li {
  margin-bottom: 0.25rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.9rem;
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--row);
  color: var(--text);
  border-radius: 0.65rem;
  padding: 0.5rem 0.9rem;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--accent);
  outline: none;
}

.btn.primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 650;
}

.btn.primary:hover {
  filter: brightness(1.05);
}

.toast {
  font-size: 0.8rem;
  color: var(--low);
  margin-left: 0.35rem;
}

/* Parts reference */
.ref-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.ref-controls input[type="search"] {
  flex: 1 1 12rem;
  min-width: 10rem;
  background: var(--row);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 0.65rem;
  padding: 0.5rem 0.7rem;
  font: inherit;
  font-size: 0.9rem;
}

.ref-controls input:focus {
  outline: none;
  border-color: var(--accent);
}

.chip {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--row);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  cursor: pointer;
}

.chip:hover,
.chip:focus-visible {
  border-color: var(--accent);
  color: var(--text);
  outline: none;
}

.chip.active {
  border-color: var(--accent);
  color: var(--bg);
  background: var(--accent);
  font-weight: 600;
}

.part-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.part-card {
  background: var(--row);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 0.85rem 0.95rem;
}

.part-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.6rem;
  margin-bottom: 0.35rem;
}

.part-top .title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.12rem 0.5rem;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border: 1px solid transparent;
}

.badge.tier-S {
  color: var(--accent);
  border-color: rgba(245, 197, 66, 0.45);
  background: var(--accent-dim);
}

.badge.tier-A {
  color: var(--low);
  border-color: rgba(107, 203, 119, 0.45);
  background: rgba(107, 203, 119, 0.12);
}

.badge.tier-B {
  color: var(--info);
  border-color: rgba(142, 197, 255, 0.4);
  background: rgba(142, 197, 255, 0.1);
}

.badge.tier-C,
.badge.tier-D,
.badge.tier-Unranked {
  color: var(--muted);
  border-color: var(--border);
  background: rgba(232, 238, 252, 0.06);
}

.badge.type {
  color: var(--text);
  border-color: var(--border);
}

.part-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.45rem;
}

.part-body {
  font-size: 0.86rem;
  color: var(--muted);
}

.part-body ul {
  margin: 0.25rem 0 0.4rem;
  padding-left: 1.1rem;
}

.part-body .section-label {
  color: var(--text);
  font-size: 0.75rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.combos-line {
  font-size: 0.82rem;
  color: var(--accent);
  margin: 0.25rem 0 0;
  word-break: break-word;
}

.empty {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* How ratings */
.how details {
  background: var(--row);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 0.65rem 0.85rem;
}

.how summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.92rem;
  list-style: none;
}

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

.how summary::before {
  content: "▸ ";
  color: var(--muted);
}

.how details[open] summary::before {
  content: "▾ ";
}

.how .how-body {
  margin-top: 0.65rem;
  font-size: 0.86rem;
  color: var(--muted);
}

.how .how-body code {
  font-size: 0.8rem;
  color: var(--accent);
}

.how .how-body ul {
  margin: 0.4rem 0;
  padding-left: 1.15rem;
}

.footer {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.footer p {
  margin: 0 0 0.5rem;
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

.footer a:hover,
.footer a:focus-visible {
  text-decoration: underline;
  outline: none;
}

.footer code {
  font-size: 0.78rem;
  color: var(--accent);
  word-break: break-all;
}

/* Mode toggle (Basic / CX) */
.mode-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}

.mode-btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--row);
  color: var(--muted);
  border-radius: 0.65rem;
  padding: 0.45rem 0.85rem;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.mode-btn:hover,
.mode-btn:focus-visible {
  border-color: var(--accent);
  color: var(--text);
  outline: none;
}

.mode-btn.active {
  border-color: var(--info);
  background: rgba(142, 197, 255, 0.14);
  color: var(--text);
  font-weight: 600;
}

.builder-grid[hidden],
.cx-grid[hidden] {
  display: none !important;
}

@media (min-width: 900px) {
  .cx-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (min-width: 640px) and (max-width: 899px) {
  .cx-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.usage-line {
  margin: 0.25rem 0 0;
  font-size: 0.72rem;
  color: var(--muted);
  min-height: 1.1em;
}

.usage-line .usage-pct {
  color: var(--info);
  font-variant-numeric: tabular-nums;
}

.usage-line .usage-note {
  opacity: 0.8;
}

.usage-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.55rem 0 0.85rem;
}

.usage-pill {
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--row);
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.usage-pill .k {
  color: var(--muted);
  text-transform: capitalize;
  margin-right: 0.15rem;
}

.badge.usage {
  border-color: rgba(142, 197, 255, 0.35);
  color: var(--info);
  font-variant-numeric: tabular-nums;
}

.badge.usage.usage-high {
  border-color: rgba(245, 197, 66, 0.45);
  color: var(--accent);
}

.badge.usage.usage-mid {
  border-color: rgba(142, 197, 255, 0.4);
  color: var(--info);
}

.badge.usage.usage-low {
  border-color: var(--border);
  color: var(--muted);
}

.badge.usage.usage-na {
  opacity: 0.75;
}

.metal-tag {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  vertical-align: middle;
}

.sort-label {
  font-size: 0.75rem;
  color: var(--muted);
  margin-left: 0.25rem;
}

#parts-sort {
  appearance: none;
  background: var(--row);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  font: inherit;
  font-size: 0.8rem;
}

.ref-controls {
  flex-wrap: wrap;
}


.expand-badge {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  color: #f5c542;
  background: #f5c54222;
  border: 1px solid #f5c54255;
}


.is-hidden {
  display: none !important;
}

.usage-callout {
  margin: 0.45rem 0 0.55rem;
  padding: 0.45rem 0.65rem;
  border-radius: 0.55rem;
  border: 1px solid rgba(245, 197, 66, 0.45);
  background: rgba(245, 197, 66, 0.12);
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 650;
}

.usage-callout strong {
  font-variant-numeric: tabular-nums;
  font-size: 1.05rem;
}

.badge.usage {
  font-size: 0.78rem !important;
  padding: 0.18rem 0.55rem !important;
  border-width: 1.5px;
}