:root{color-scheme:dark;font-family:Segoe UI,Hiragino Sans,Yu Gothic UI,Meiryo,system-ui,sans-serif;color:#f3f3f5;background:#101217;font-synthesis:none;--panel: #191c24;--border: #303542;--muted: #acb2c1;--accent: #facc15}*{box-sizing:border-box}body{margin:0;min-width:300px}button,input{font:inherit}button{color:inherit;background:#222630;border:1px solid var(--border);border-radius:7px;min-height:38px;padding:7px 12px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:7px;line-height:1.3;font-size:.84rem;font-weight:600}button:hover:not(:disabled){background:#303644;border-color:#575f71}button:disabled{opacity:.48;cursor:default}button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px}button[aria-pressed=true]{color:#ffe470;border-color:#8d741b;background:#352e19}button.primary{background:var(--accent);border-color:var(--accent);color:#1d1a0e;font-weight:750}button.primary:hover:not(:disabled){background:#ffe477;border-color:#ffe477}button.wide{width:100%}.app{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}.topbar,footer{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-inline:clamp(12px,2.4vw,34px)}.topbar{min-height:74px;padding-block:9px;border-bottom:1px solid #252936;background:#15171e}.brand,.header-actions{display:flex;align-items:center;gap:10px}.brand{min-width:0;gap:12px}.brand-icon{flex-shrink:0;width:43px;height:43px;display:grid;place-items:center;color:var(--accent);background:#30291a;border:1px solid #615326;border-radius:12px}.eyebrow{color:#d4b84b;font-size:.64rem;font-weight:800;letter-spacing:.16em}h1,h2,h3,p{margin:0}h1{font-size:clamp(.92rem,2.2vw,1.34rem);line-height:1.3;margin-top:4px}.icon-button{min-width:38px;padding-inline:7px}.settings-button{border-color:#4a4431}.settings-button svg{color:var(--accent)}.workspace{display:grid;grid-template-columns:minmax(0,1fr);flex:1;gap:16px;padding:16px clamp(12px,2.4vw,34px);height:calc(100vh - 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