:root{color-scheme:light dark;--bg:#fafafa;--panel:#ffffff;--border:#e2e2e2;--text:#1a1a1a;--muted:#6b7280;--accent:#4c6ef5;--danger:#b23b2e;--certainty-tentative:#b8860b;--certainty-unresolved:#b23b2e;--layer-proposal:#4c6ef5}@media (prefers-color-scheme:dark){:root{--bg:#111214;--panel:#1a1c1f;--border:#2e3136;--text:#e8e8e8;--muted:#9aa0a8}}*{box-sizing:border-box}body,html{margin:0;padding:0;height:100%;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;font-size:15px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit;color:inherit;background:var(--panel);border:1px solid var(--border);border-radius:6px;padding:.45rem .7rem}button{cursor:pointer}button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}button.danger{color:var(--danger);border-color:var(--danger)}button:disabled{opacity:.5;cursor:default}.card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:1rem 1.25rem}.row{display:flex;gap:.6rem;align-items:center;flex-wrap:wrap}.muted{color:var(--muted)}.small{font-size:.85rem}.topbar{display:flex;align-items:center;gap:1rem;padding:.6rem 1.25rem;border-bottom:1px solid var(--border);background:var(--panel)}.topbar .brand{font-weight:700;color:var(--text)}.topbar .spacer{flex:1 1}.badge{display:inline-block;padding:.1rem .55rem;border-radius:999px;font-size:.75rem;font-weight:600;border:1px solid var(--border)}.badge.brainstorm{background:#fef3c7;color:#92400e;border-color:#fcd34d}.badge.build{background:#dcfce7;color:#166534;border-color:#86efac}@media (prefers-color-scheme:dark){.badge.brainstorm{background:#3a2f10;color:#fcd34d;border-color:#6b5416}.badge.build{background:#10321c;color:#86efac;border-color:#1e5c35}}