:root{--bg: #17120e;--surface: #221b15;--surface-2: #2d241c;--line: #3d3125;--text: #f2e9df;--text-dim: #ab9e90;--accent: #d98f3f;--accent-dim: #7a5526;--board: #d7ad6a;--board-line: #6b4a22;--black-side: #4c8ed9;--white-side: #d9604c;--danger: #d9604c;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Yu Gothic,Noto Sans JP,sans-serif;touch-action:manipulation;-webkit-text-size-adjust:100%}button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}.app{display:flex;flex-direction:column;height:100dvh;padding-top:env(safe-area-inset-top)}.app-header{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px max(12px,env(safe-area-inset-right)) 8px max(12px,env(safe-area-inset-left));border-bottom:1px solid var(--line)}.app-header 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var(--line);border-radius:999px}.chip.active{color:#17120e;font-weight:600;background:var(--accent);border-color:var(--accent)}@media(min-width:620px){.app-main-analyze{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;gap:12px}.app-main-analyze .eval-bar{grid-column:1 / -1}.app-main-analyze .board-area{grid-column:1}.app-main-analyze .analyze-side{grid-column:2;max-height:calc(100dvh - 190px);overflow-y:auto}.board{max-height:72dvh;margin-inline:auto}.app-main-record,.app-main-graph,.app-main-settings{max-width:720px;width:100%;margin-inline:auto}}.precedent{padding:11px;background:var(--surface);border:1px solid var(--line);border-radius:10px}.precedent-title{display:flex;align-items:baseline;gap:8px;margin:0 0 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