:root { color-scheme: dark; }
* { box-sizing: border-box; }
body { margin:0; font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; background:#0e0f11; color:#e8e8ea; }
.container { max-width: 920px; margin: 40px auto; padding: 0 16px; }
h1 { margin: 0 0 6px; font-size: 28px; }
.sub { color:#9aa2ad; margin: 0 0 20px; }
.card { background:#14161a; border:1px solid #23262b; border-radius:16px; padding:18px 20px; margin:16px 0; }
.ask-form label { display:block; font-weight:600; margin-bottom:6px; }
.row { display:flex; gap:10px; }
input[type=text] { flex:1; padding:12px 14px; border:1px solid #2a2f36; border-radius:12px; background:#0f1114; color:#e8e8ea; }
button { padding:12px 16px; border-radius:12px; border:1px solid #2a2f36; background:#1c2026; color:#e8e8ea; cursor:pointer; }
button:hover { background:#222933; }
.hint { color:#8a93a1; margin-top:8px; font-size: 14px; }
.answer { white-space: pre-wrap; line-height: 1.5; }
.cites { margin: 8px 0 0 18px; color:#b5beca; }
.howto { margin: 8px 0 0 18px; color:#c7cbd2; }
code { background:#0f1114; padding:2px 6px; border-radius:6px; border:1px solid #2a2f36; }
input[type=file] { padding:8px; border-radius:10px; border:1px solid #2a2f36; background:#0f1114; color:#e8e8ea; }
button.ghost { background:transparent; }
.flash-wrap { display:grid; gap:8px; margin: 8px 0; }
.flash { padding:10px 12px; border-radius:10px; font-size:14px; }
.flash.ok { background:#142418; border:1px solid #1f3c26; color:#c0f0c9; }
.flash.err { background:#2a1414; border:1px solid #3d1f1f; color:#f0c0c0; }
.docs { margin: 8px 0 0 18px; }