:root { color-scheme: dark; font-family: Inter, ui-sans-serif, system-ui, sans-serif; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at top, #243047, #090d16 60%); color: #f8fafc; }
.card { width: min(560px, 100%); padding: 36px; border: 1px solid #334155; border-radius: 24px; background: rgba(15, 23, 42, .92); box-shadow: 0 30px 80px rgba(0,0,0,.45); }
.eyebrow { font-size: 12px; letter-spacing: .16em; color: #93c5fd; }
h1 { margin: 10px 0 12px; font-size: clamp(30px, 7vw, 48px); line-height: 1.05; }
p { color: #cbd5e1; line-height: 1.65; }
button { width: 100%; border: 0; border-radius: 14px; padding: 15px 18px; background: #2563eb; color: white; font-weight: 750; font-size: 16px; cursor: pointer; }
button:hover { filter: brightness(1.08); }
button:disabled { cursor: wait; opacity: .65; }
button.secondary { background: #334155; }
.status { margin-top: 16px; padding: 12px 14px; border-radius: 12px; background: #111827; color: #cbd5e1; }
.status[data-type="success"] { color: #86efac; }
.status[data-type="error"] { color: #fca5a5; }
.fineprint { font-size: 12px; }
label { display: grid; gap: 7px; margin: 15px 0; color: #cbd5e1; }
input, textarea { width: 100%; border: 1px solid #475569; border-radius: 11px; padding: 12px; background: #0f172a; color: #f8fafc; font: inherit; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px; }
.result { white-space: pre-wrap; overflow-wrap: anywhere; min-height: 90px; margin-top: 18px; padding: 14px; border-radius: 12px; background: #020617; color: #a7f3d0; }
@media (max-width: 520px) { .card { padding: 24px; } .row { grid-template-columns: 1fr; } }