:root {
  --ground: #EEF1EC;
  --surface: #FBFCFA;
  --surface-2: #E4E9E1;
  --ink: #141816;
  --ink-2: #3A423C;
  --ink-3: #6B7469;
  --line: #C7CFC5;
  --line-soft: #DBE1D7;

  --med: #2F5D40;
  --med-soft: #DDE9DE;
  --surg: #8A3A32;
  --surg-soft: #EDDCD8;

  --tier-5: #147a4a;
  --tier-4: #4a9463;
  --tier-3: #b58600;
  --tier-2: #b8611d;
  --tier-1: #a4322a;

  --tier-5-bg: #d8ecdf;
  --tier-4-bg: #e0ecda;
  --tier-3-bg: #f2e6c0;
  --tier-2-bg: #f2ddc8;
  --tier-1-bg: #f0d3cf;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 0 rgba(20, 24, 22, 0.04), 0 1px 3px rgba(20, 24, 22, 0.06);

  --font-ui: "Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #101412;
    --surface: #171C19;
    --surface-2: #1E2521;
    --ink: #E6EBE4;
    --ink-2: #B7BEB6;
    --ink-3: #838C83;
    --line: #2A322D;
    --line-soft: #222824;

    --med: #7BB58C;
    --med-soft: #1E2F24;
    --surg: #D69890;
    --surg-soft: #2E1F1D;

    --tier-5: #7BD3A2;
    --tier-4: #a2d1a8;
    --tier-3: #e4c268;
    --tier-2: #eaa06b;
    --tier-1: #e88a80;

    --tier-5-bg: #1a2f24;
    --tier-4-bg: #1e2b1f;
    --tier-3-bg: #33291a;
    --tier-2-bg: #33231a;
    --tier-1-bg: #331d1c;

    --shadow: 0 1px 0 rgba(0,0,0,0.4), 0 1px 3px rgba(0,0,0,0.5);
  }
}

:root[data-theme="dark"] {
  --ground: #101412;
  --surface: #171C19;
  --surface-2: #1E2521;
  --ink: #E6EBE4;
  --ink-2: #B7BEB6;
  --ink-3: #838C83;
  --line: #2A322D;
  --line-soft: #222824;

  --med: #7BB58C;
  --med-soft: #1E2F24;
  --surg: #D69890;
  --surg-soft: #2E1F1D;

  --tier-5: #7BD3A2;
  --tier-4: #a2d1a8;
  --tier-3: #e4c268;
  --tier-2: #eaa06b;
  --tier-1: #e88a80;

  --tier-5-bg: #1a2f24;
  --tier-4-bg: #1e2b1f;
  --tier-3-bg: #33291a;
  --tier-2-bg: #33231a;
  --tier-1-bg: #331d1c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 4rem;
}

h1, h2 { text-wrap: balance; margin: 0; }

.eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ---------- Header ---------- */
.page-header {
  padding: 1.25rem 1.25rem 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 1rem;
  border-bottom: 1px solid var(--line-soft);
  background: var(--surface);
}
.page-header__title h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-top: 0.15rem;
}
.switch {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 13px;
  color: var(--ink-2);
  cursor: pointer;
  user-select: none;
  margin-left: auto;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.switch input {
  accent-color: var(--med);
  width: 15px;
  height: 15px;
  margin: 0;
}

/* ---------- Tabs ---------- */
.tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0.5rem 1.25rem 0;
  background: var(--surface);
  border-bottom: 1px solid var(--line-soft);
  overflow-x: auto;
}
.tab {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--ink-3);
  font: inherit;
  font-weight: 500;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.tab[aria-selected="true"] {
  color: var(--ink);
  border-bottom-color: var(--med);
}
.tab:focus-visible { outline: 2px solid var(--med); outline-offset: 2px; }

/* ---------- Mode bar ---------- */
.mode-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--line-soft);
  position: sticky;
  top: 0;
  z-index: 2;
}
.mode-bar__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.mode-toggle {
  display: inline-flex;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface);
}
.mode {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--ink-2);
  font: inherit;
  font-size: 13px;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  border-right: 1px solid var(--line-soft);
}
.mode:last-child { border-right: 0; }
.mode[aria-checked="true"] {
  background: var(--ink);
  color: var(--ground);
}
.mode:focus-visible { outline: 2px solid var(--med); outline-offset: -2px; }

/* ---------- Panels ---------- */
main { padding: 1rem 1.25rem 2rem; max-width: 900px; margin: 0 auto; }
.tab-panel { display: none; }
.tab-panel.is-active { display: block; }
.panel-intro { margin-bottom: 1rem; }
.panel-intro h2 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.panel-intro p {
  margin: 0.25rem 0 0;
  color: var(--ink-2);
  font-size: 13.5px;
}
.panel-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}
.ghost {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.ghost:hover { background: var(--surface-2); }

/* ---------- Combo list ---------- */
.combo-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.75rem;
}
.combo {
  display: grid;
  grid-template-columns: 3.25rem 1fr auto;
  align-items: center;
  gap: 0.5rem 0.75rem;
  padding: 0.6rem 0.75rem;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.combo.is-dead {
  opacity: 0.4;
  filter: saturate(0.6);
}
.combo__rank {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
  text-align: center;
  padding: 0.3rem 0;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
}
.combo__legs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.6rem;
  min-width: 0;
}
.leg {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  min-width: 0;
}
.leg__tag {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  color: var(--surface);
  flex-shrink: 0;
}
.leg__tag.med { background: var(--med); }
.leg__tag.surg { background: var(--surg); }
.leg__name {
  font-weight: 500;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.combo__score {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 14px;
}
.tier {
  font-family: var(--font-ui);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  text-transform: uppercase;
}
.tier-5 { background: var(--tier-5-bg); color: var(--tier-5); }
.tier-4 { background: var(--tier-4-bg); color: var(--tier-4); }
.tier-3 { background: var(--tier-3-bg); color: var(--tier-3); }
.tier-2 { background: var(--tier-2-bg); color: var(--tier-2); }
.tier-1 { background: var(--tier-1-bg); color: var(--tier-1); }

.mode-group {
  margin-top: 1.25rem;
}
.mode-group__title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 0.5rem;
}

/* ---------- Cross-out grid ---------- */
.cross-grid, .seat-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 1fr 1fr;
  margin: 0.75rem 0 1rem;
}
@media (max-width: 640px) {
  .cross-grid, .seat-grid { grid-template-columns: 1fr; }
}
.col {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 0.75rem;
  box-shadow: var(--shadow);
}
.col__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}
.col__title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
}
.col__hint {
  font-size: 11px;
  color: var(--ink-3);
}
.col.med .col__title { color: var(--med); }
.col.surg .col__title { color: var(--surg); }

.unit-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.35rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  user-select: none;
}
.unit-row:hover { background: var(--surface-2); }
.unit-row + .unit-row { border-top: 1px solid var(--line-soft); }
.unit-row__tier {
  width: 0.65rem;
  height: 1.5rem;
  border-radius: 3px;
  flex-shrink: 0;
}
.unit-row.tier-5 .unit-row__tier { background: var(--tier-5); }
.unit-row.tier-4 .unit-row__tier { background: var(--tier-4); }
.unit-row.tier-3 .unit-row__tier { background: var(--tier-3); }
.unit-row.tier-2 .unit-row__tier { background: var(--tier-2); }
.unit-row.tier-1 .unit-row__tier { background: var(--tier-1); }
.unit-row__name {
  flex: 1;
  min-width: 0;
  font-size: 13.5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.unit-row__meta {
  font-size: 11px;
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}
.unit-row.is-gone {
  opacity: 0.45;
}
.unit-row.is-gone .unit-row__name {
  text-decoration: line-through;
  text-decoration-thickness: 1.5px;
}

/* Seat controls */
.seat-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  margin-left: auto;
  flex-shrink: 0;
}
.seat-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-family: var(--font-mono);
  width: 1.6rem;
  height: 1.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.seat-btn:hover { background: var(--surface-2); }
.seat-count {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  min-width: 1.5rem;
  text-align: center;
}
.seat-count.is-zero { color: var(--tier-1); }

/* ---------- Footer ---------- */
.page-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--line-soft);
  background: var(--surface);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--ink-3);
}
.tier-legend {
  display: inline-flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}