:root{--bg:#f6f7f9;--card:#fff;--fg:#1a1d23;--mute:#6b7280;--line:#e5e7eb;--accent:#2563eb;--accent-fg:#fff;--like:#e11d48;--ok:#16a34a}
@media (prefers-color-scheme:dark){:root{--bg:#0f1115;--card:#181b22;--fg:#e8eaed;--mute:#9aa0aa;--line:#2a2e37;--accent:#3b82f6}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.45 system-ui,-apple-system,"Segoe UI",sans-serif}
main{max-width:720px;margin:0 auto;padding:16px}
h1{font-size:1.5rem;margin:.4em 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;margin:12px 0}
input,textarea{width:100%;font:inherit;color:inherit;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px;margin:4px 0}
textarea{resize:vertical;min-height:84px}
button{font:inherit;cursor:pointer;border:1px solid var(--line);background:var(--card);color:var(--fg);border-radius:8px;padding:8px 12px}
button.primary{background:var(--accent);color:var(--accent-fg);border-color:var(--accent)}
button.danger{color:var(--like)}
button:disabled{opacity:.5;cursor:default}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.grow{flex:1}
.mute{color:var(--mute);font-size:.875rem}
.q{display:flex;gap:12px;align-items:flex-start}
.q.answered{opacity:.55}
.q.pinned{border-color:var(--accent)}
.like{flex:none;min-width:56px;display:flex;flex-direction:column;align-items:center;padding:6px 8px;line-height:1.2}
.like.on{color:var(--like);border-color:var(--like)}
.q .body{flex:1;min-width:0;overflow-wrap:anywhere}
.q .actions{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.q .actions button{padding:4px 8px;font-size:.8rem}
.badge{font-size:.7rem;border-radius:99px;padding:1px 8px;background:var(--accent);color:var(--accent-fg);margin-right:6px}
.badge.ok{background:var(--ok)}
.qr{text-align:center}
.qr img{width:200px;height:200px;background:#fff;border-radius:8px;padding:6px}
.qr input{text-align:center}
.banner{background:#fef3c7;color:#78350f;border-radius:8px;padding:8px 12px;margin:12px 0}
/* fullscreen present mode */
body.present main>*:not(#presentBox){display:none}
#presentBox{display:none}
body.present #presentBox{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:90vh;text-align:center;gap:16px}
#presentBox img{width:min(70vh,90vw);height:min(70vh,90vw);background:#fff;border-radius:12px;padding:10px}
#presentBox h1{font-size:2rem}