:root {
  --bg: #f6f7f9; --panel: #fff; --ink: #14171f; --muted: #5a6272; --line: #dde1e8;
  --accent: #3b6cf5; --accent-ink: #fff; --ok: #137a4b; --okbg: #e3f6ec; --bad: #b3261e; --badbg: #fde8e6;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink);
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); font-size: 14px; line-height: 1.45; }
h2 { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 22px 0 8px; }
h2:first-child { margin-top: 0; }
h3 { font-size: 15px; margin: 24px 0 8px; }
button, select, input { font: inherit; color: inherit; }
button { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 5px 11px; cursor: pointer; }
button:hover { border-color: #aab1bf; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
button.ghost { border-color: transparent; background: none; color: var(--muted); }
select, input[type=text] { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 5px 8px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.top { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; padding: 10px 18px; background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 700; font-size: 16px; display: flex; align-items: center; gap: 8px; margin-right: 8px; }
.logo { width: 20px; height: 20px; border-radius: 6px; background: conic-gradient(#3b6cf5, #ffd166, #06d6a0, #3b6cf5); }
.spacer { flex: 1; }
.field { display: flex; flex-direction: column; gap: 3px; margin-bottom: 10px; font-size: 12px; color: var(--muted); position: relative; }
.field.inline { flex-direction: row; align-items: center; gap: 6px; margin: 0; }
.field output { position: absolute; right: 0; top: 0; font-family: var(--mono); color: var(--ink); }
.field input[type=range] { width: 100%; }
.layout { display: grid; grid-template-columns: 270px 1fr; gap: 20px; padding: 18px; align-items: start; }
.side { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.row { display: flex; gap: 8px; margin-bottom: 8px; }
.row input[type=text] { flex: 1; min-width: 0; font-family: var(--mono); }
input[type=color] { width: 40px; height: 32px; padding: 0; border: 1px solid var(--line); border-radius: 6px; background: none; }
.main { min-width: 0; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 16px; flex-wrap: wrap; }
.tabs button { border: none; border-bottom: 2px solid transparent; border-radius: 0; background: none; padding: 8px 14px; color: var(--muted); }
.tabs button[aria-selected=true] { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; margin-top: 14px; }
.muted { color: var(--muted); } .small { font-size: 12px; } .mono { font-family: var(--mono); }
.error { color: var(--bad); font-size: 12px; margin: 0 0 8px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-bottom: 12px; }

.scale-row { display: grid; grid-template-columns: 78px 1fr; align-items: center; gap: 10px; margin-bottom: 8px; }
.scale-name { font-weight: 600; text-transform: capitalize; }
.swatches { display: grid; grid-template-columns: repeat(11, 1fr); gap: 3px; }
.sw { height: 64px; border-radius: 6px; padding: 5px 4px; display: flex; flex-direction: column; justify-content: space-between; align-items: flex-start; font-size: 11px; border: 2px solid transparent; text-align: left; min-width: 0; }
.sw .hex { font-family: var(--mono); font-size: 10px; overflow: hidden; max-width: 100%; }
.sw[aria-pressed=true] { outline: 3px solid var(--ink); outline-offset: 1px; }
.sw.locked { border-color: currentColor; }
.detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.big-chip { height: 70px; border-radius: 8px; border: 1px solid var(--line); margin-bottom: 8px; }
.kv { display: grid; grid-template-columns: 90px 1fr; gap: 2px 8px; font-size: 12.5px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; font-family: var(--mono); }
.harmonies { display: flex; flex-wrap: wrap; gap: 14px; }
.harm { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
.harm b { display: block; font-size: 12px; text-transform: capitalize; margin-bottom: 4px; }
.harm .chips { display: flex; gap: 4px; }
.chip { width: 34px; height: 34px; border-radius: 6px; border: 1px solid var(--line); padding: 0; }

.matrix-wrap { overflow-x: auto; }
table.matrix { border-collapse: separate; border-spacing: 2px; }
.matrix th { font-size: 11px; font-weight: 600; padding: 2px 4px; color: var(--muted); }
.matrix td { padding: 0; }
.cell { width: 62px; height: 40px; border-radius: 4px; border: 2px solid transparent; font-size: 11px; font-family: var(--mono); display: flex; flex-direction: column; align-items: center; justify-content: center; line-height: 1.15; padding: 0; }
.cell.pass { border-color: var(--ok); } .cell.fail { border-color: var(--bad); opacity: .72; }
.cell[aria-pressed=true] { outline: 3px solid var(--ink); }
.cell b { font-size: 14px; }
.badge { display: inline-block; padding: 1px 7px; border-radius: 999px; font-size: 11.5px; font-weight: 600; }
.badge.ok { background: var(--okbg); color: var(--ok); } .badge.bad { background: var(--badbg); color: var(--bad); }
table.plain { border-collapse: collapse; width: 100%; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
.plain th, .plain td { text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--line); font-size: 13px; }
.plain td.n { font-family: var(--mono); }

.previews { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 16px; }
.pv { background: var(--pv-surface); color: var(--pv-on-surface); border-radius: 12px; padding: 18px; border: 1px solid var(--pv-outline); }
.pv h4 { margin: 0 0 4px; font-size: 18px; } .pv p { margin: 0 0 10px; }
.pv .mut { color: var(--pv-muted); } .pv a { color: var(--pv-link); }
.pv .btns { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.pv .btn { border-radius: 8px; padding: 7px 14px; border: 1px solid transparent; font-weight: 600; }
.pv .btn.outline { background: none; color: var(--pv-link); border-color: var(--pv-link); }
.pv .alert { border-radius: 8px; padding: 8px 12px; margin-bottom: 8px; font-size: 13px; }
.pv .pcard { background: var(--pv-alt); border-radius: 10px; padding: 12px 14px; border: 1px solid var(--pv-outline); margin-top: 12px; }
.pv .badges { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.pv .badge { padding: 2px 9px; }
.pv svg { width: 100%; height: 110px; display: block; }
.pv .legend { display: flex; gap: 10px; flex-wrap: wrap; font-size: 11.5px; margin-top: 4px; }
.pv .legend i { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 4px; }

.vision-pair { display: grid; grid-template-columns: 110px 1fr; gap: 6px 10px; align-items: center; margin-bottom: 6px; }
.strip { display: flex; gap: 3px; } .strip div { flex: 1; height: 34px; border-radius: 5px; max-width: 90px; }
.code { background: #10131a; color: #e6e9f0; border-radius: 10px; padding: 14px 16px; overflow: auto; max-height: 560px; font-family: var(--mono); font-size: 12.5px; margin: 0; }
.tabs-inline button[aria-pressed=true] { background: var(--ink); color: #fff; }
@media (max-width: 900px) { .layout { grid-template-columns: 1fr; } .swatches { grid-template-columns: repeat(6, 1fr); } .scale-row { grid-template-columns: 1fr; } }