:root{--bg: #f6f7f9;--panel: #ffffff;--text: #1d2330;--muted: #687082;--line: #dde1e8;--accent: #2f6fdb;--error: #c62828;--suit-c: #2e7d32;--suit-d: #1565c0;--suit-h: #c62828;--suit-s: #222;color-scheme:light dark;font-family:system-ui,-apple-system,Segoe UI,Malgun Gothic,Apple SD Gothic Neo,sans-serif}@media(prefers-color-scheme:dark){:root{--bg: #14171d;--panel: #1c2028;--text: #e6e9ef;--muted: #9aa3b5;--line: #2e3440;--accent: #6ea0ff;--error: #ff6b6b;--suit-s: #e6e9ef;--suit-d: #64a8ff;--suit-c: #5cc46a;--suit-h: #ff6b6b}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:14px}.app{max-width:1280px;margin:0 auto;padding:16px}header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}h1{margin:0;font-size:22px}h2{font-size:18px;margin:16px 0 8px}h3{font-size:15px;margin:12px 0 6px}.muted,.hint{color:var(--muted)}.hint{font-size:12px;margin:4px 0}.error{color:var(--error);margin:4px 0}.notice{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--accent);padding:8px 12px;margin-bottom:12px}a{color:var(--accent)}button{font:inherit;padding:6px 12px;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:6px;cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}button.link{border:none;background:none;color:var(--accent);padding:0 6px}input,select,textarea{font:inherit;padding:5px 8px;border:1px solid var(--line);border-radius:6px;background:var(--panel);color:var(--text)}input[aria-invalid=true]{border-color:var(--error)}textarea{width:100%;font-family:ui-monospace,Consolas,monospace}label{display:flex;flex-direction:column;gap:4px}label.inline{flex-direction:row;align-items:center;gap:6px}fieldset{border:1px solid var(--line);border-radius:8px;background:var(--panel);margin:0 0 12px;padding:10px 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0;width:38px;font-weight:700}.card-btn.on{background:var(--accent);color:#fff;border-color:var(--accent)}.ranges{display:grid;grid-template-columns:repeat(auto-fit,minmax(360px,1fr));gap:12px}.range-editor{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:10px 12px}.range-grid,.strategy-grid{display:flex;flex-direction:column;gap:1px;user-select:none}.range-row{display:grid;grid-template-columns:repeat(13,1fr);gap:1px}.range-cell,.strategy-cell{padding:0;aspect-ratio:1.25;font-size:11px;border-radius:2px;border:1px solid var(--line);background:var(--bg);position:relative;overflow:hidden}.range-cell.pair,.strategy-cell.pair{font-weight:700}.strategy-cell.empty{opacity:.35;cursor:default}.strategy-cell.selected{outline:2px solid var(--accent);outline-offset:-2px}.strategy-cell .bars{position:absolute;inset:0;display:flex}.strategy-cell .bars span{height:100%}.strategy-cell .label{position:relative;color:#fff;text-shadow:0 0 2px #000,0 0 2px #000;font-weight:600}.strategy-cell.empty .label{color:var(--muted);text-shadow:none}.estimate{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:6px 12px;margin-top:12px}.solve-bar{position:sticky;top:0;z-index:2;display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:var(--bg);padding:10px 0;border-bottom:1px solid var(--line);margin:12px 0}.status{font-variant-numeric:tabular-nums}.save-bar{display:flex;gap:8px;align-items:center;margin-bottom:8px}.result{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:10px 12px}.result-summary{display:flex;flex-wrap:wrap;gap:16px;align-items:center}.path{margin:10px 0 4px}.node-info{color:var(--muted);margin-bottom:8px}.actions{display:flex;flex-wrap:wrap;gap:6px}.action-btn{border-width:2px;display:inline-flex;align-items:center;gap:6px}.swatch{width:10px;height:10px;border-radius:2px;display:inline-block}.freq-bar{display:flex;height:10px;border-radius:4px;overflow:hidden;margin:8px 0;background:var(--line)}.result-body{display:grid;grid-template-columns:minmax(320px,520px) 1fr;gap:16px;align-items:start}@media(max-width:900px){.result-body{grid-template-columns:1fr}}.tables{overflow-x:auto}table{border-collapse:collapse;width:100%;font-variant-numeric:tabular-nums}th,td{border-bottom:1px solid var(--line);padding:3px 6px;text-align:right;white-space:nowrap}th:first-child,td:first-child{text-align:left}.class-table{max-height:320px;display:block;overflow-y:auto}.class-table tr{cursor:pointer}tr.selected{background:color-mix(in srgb,var(--accent) 15%,transparent)}.mono{font-family:ui-monospace,Consolas,monospace;font-weight:600}.saved-list{list-style:none;padding:0}.saved-list li{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid var(--line)}.row-buttons{display:flex;gap:6px;align-items:start}.file-btn{display:inline-flex;cursor:pointer}.licenses details{border-bottom:1px solid var(--line);padding:6px 0}.license-text{white-space:pre-wrap;font-size:12px;background:var(--bg);padding:8px;border-radius:6px;max-height:300px;overflow:auto}footer{margin-top:24px;color:var(--muted);font-size:12px;border-top:1px solid var(--line)}.badge{font-size:12px;padding:2px 8px;border-radius:10px;background:var(--panel);border:1px solid var(--line)}.badge.example{border-color:#c98a2b;color:#a8661a}.badge.experimental{margin-left:8px;border-color:#b0479a;color:#8e2f7c;font-weight:600}.presets{flex-wrap:wrap;align-items:center}.thread-select{margin-left:8px}.result-tabs{margin:10px 0 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var(--line);padding-top:8px}.lock-actions{display:flex;flex-wrap:wrap;gap:12px;margin:8px 0}.lock-actions input{width:70px}.lock-list{margin:0;padding-left:18px}