:root{--bg:#0c111b;--panel:#111827;--raised:#151f2e;--soft:#182334;--border:#263244;--text:#e8edf5;--muted:#7f8fa8;--strong:#aebbd0;--accent:#16865a;--hover:#2a374a;font-family:Inter,system-ui,sans-serif;color:var(--text);background:var(--bg)}:root[data-theme=light]{--bg:#f2f5f9;--panel:#fff;--raised:#f7f9fc;--soft:#edf1f6;--border:#cfd7e3;--text:#172033;--muted:#647187;--strong:#435168;--accent:#087a50;--hover:#e5eaf1}*{box-sizing:border-box}html,body{margin:0;min-width:320px;min-height:100%;background:var(--bg)}button,input,select{font:inherit}button,select{color:inherit}a{color:inherit;text-decoration:none}[hidden]{display:none!important}.app-shell{display:grid;grid-template-rows:58px minmax(calc(100vh - 58px),auto);min-height:100vh}.topbar{position:sticky;top:0;z-index:30;display:grid;grid-template-columns:minmax(190px,1fr) auto minmax(390px,1fr);align-items:center;gap:16px;padding:0 18px;background:var(--panel);border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:10px;font-weight:700}.brand__mark,.optimizer-card__icon{display:grid;place-items:center;border:2px solid #168dcc;border-radius:50%;background:#071827;color:#7dd3fc;box-shadow:0 4px 12px #0005;font-weight:800}.brand__mark{width:38px;height:38px;font-size:12px}.page-identity{display:flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid var(--border);border-radius:8px;background:var(--soft);font-size:12px;font-weight:650}.page-identity i,.privacy-badge i,.sidebar__footer i{width:7px;height:7px;border-radius:50%;background:#27d994;box-shadow:0 0 9px #27d99499}.topbar__actions,.privacy-badge{display:flex;align-items:center}.topbar__actions{justify-content:flex-end;gap:9px}.privacy-badge{gap:7px;padding-right:8px;color:#8ed8b6;font-size:12px}.theme-toggle{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--border);border-radius:7px;background:var(--soft);cursor:pointer}.button{border:1px solid transparent;border-radius:7px;padding:8px 12px;background:transparent;cursor:pointer;font-size:13px;font-weight:650}.button--primary{background:var(--accent);color:#fff}.button--primary:hover{filter:brightness(1.12)}.button--secondary{background:var(--soft);border-color:var(--border)}.button--large{padding:11px 18px}.button:disabled{opacity:.45;cursor:not-allowed}.workspace{display:grid;grid-template-columns:310px minmax(0,1fr);min-height:calc(100vh - 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