:root{--bg:#fff;--fg:#111;--muted:#666;--primary:#0b57d0;--danger:#d00b0b;--border:#e5e7eb;--card:#fafafa}
*{box-sizing:border-box}html,body{height:100%}body{margin:0;font:16px/1.4 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--fg);background:var(--bg)}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:8px 16px;border-bottom:1px solid var(--border);position:sticky;top:0;background:#fff;z-index:10}
.brand img{height:36px}.nav button{margin-left:8px}.linkish{background:transparent;border:none;color:var(--primary);cursor:pointer}
.primary{background:var(--primary);border:none;color:white;padding:8px 14px;border-radius:8px;cursor:pointer}
.danger{background:var(--danger);color:#fff;border:none;padding:8px 14px;border-radius:8px;cursor:pointer}
.ghost{background:#f4f4f5;border:1px solid var(--border);border-radius:8px;padding:8px 14px;cursor:pointer}
.hidden{display:none !important}.center{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:70vh}
.home-logo{width:220px;margin:24px 0}.search-form{display:flex;flex-direction:column;align-items:center;gap:10px}
.search-form input{width:min(680px,92vw);padding:14px 16px;border:1px solid var(--border);border-radius:999px;font-size:18px;outline:none}
.search-form.compact{flex-direction:row;gap:8px;align-items:center}.search-form.compact input{border-radius:999px;flex:1}
.actions{display:flex;gap:10px}.pill{display:inline-block;background:#f3f4f6;border:1px solid var(--border);border-radius:999px;padding:4px 10px;margin:0 6px;font-size:13px}
.hint{margin-top:16px;color:var(--muted)}.view{padding:12px 16px}.searchbar-sticky{position:sticky;top:60px;background:#fff;padding:8px 0;border-bottom:1px solid var(--border);z-index:9}
.answer{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px;margin:12px auto;max-width:900px}
.results{display:flex;flex-direction:column;gap:12px;margin:12px auto;max-width:900px}.result{border-bottom:1px solid var(--border);padding-bottom:12px}
.result a.title{font-size:18px;color:#1558d6;text-decoration:none}.displayurl{font-size:12px;color:#0f5132}.meta{color:var(--muted);font-size:12px;margin-top:6px}
.related{max-width:900px;margin:12px auto;display:flex;flex-wrap:wrap;gap:8px}.chip{border:1px solid var(--border);border-radius:999px;padding:6px 10px;background:#f9fafb;cursor:pointer}
.list{list-style:none;padding:0;margin:0}.list li{padding:8px 0;border-bottom:1px solid var(--border)}.small{font-size:12px}.muted{color:var(--muted)}
.footer{padding:24px;text-align:center;color:var(--muted)}dialog{border:none;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.15);padding:0}dialog::backdrop{background:rgba(0,0,0,.3)}
@media (max-width:640px){.home-logo{width:160px}.search-form input{font-size:16px}}