:root { --bg: #0e1116; --card: #171b22; --fg: #e8e2d0; --muted: #9a958a; --gold: #d8b45a; --err: #e0675d; --ok: #6fc28a; }
* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(ellipse at top, #1d2430, var(--bg) 60%); color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; min-height: 100vh; }
main { max-width: 860px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { color: var(--gold); font-family: Georgia, serif; font-size: 2.4rem; margin: 0 0 8px; letter-spacing: .5px; }
h2 { margin: 0 0 12px; font-size: 1.15rem; }
.lead { color: var(--muted); margin: 0 0 24px; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid #262c36; border-radius: 10px; padding: 20px; margin-bottom: 16px; }
label { display: block; margin-bottom: 12px; font-size: .9rem; color: var(--muted); }
input, select { display: block; width: 100%; margin-top: 4px; padding: 9px 10px; border-radius: 6px;
  border: 1px solid #333b48; background: #0f1319; color: var(--fg); font-size: 1rem; }
button { background: var(--gold); color: #1a1407; border: 0; border-radius: 6px; padding: 10px 18px; font-weight: 600;
  font-size: 1rem; cursor: pointer; }
button:hover { filter: brightness(1.1); }
button.play { font-size: 1.2rem; padding: 14px 28px; margin: 8px 0; }
button.link { background: none; color: var(--muted); padding: 0; text-decoration: underline; }
.inline label { max-width: 220px; }
.hint { color: var(--muted); font-size: .85rem; }
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; }
.flash.err { background: #3a1d1b; color: var(--err); }
.flash.ok { background: #1b3424; color: var(--ok); }
pre, code { background: #0f1319; border-radius: 4px; padding: 2px 6px; }
pre { padding: 10px; overflow-x: auto; }