:root {
  --bg: #070b14;
  --card: #101827;
  --text: #eef3ff;
  --muted: #9aa8c7;
  --line: rgba(255,255,255,.08);
  --accent: #7c5cff;
  --accent2: #2ee6a6;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background:
    radial-gradient(900px 500px at 0% -10%, rgba(124,92,255,.25), transparent 55%),
    radial-gradient(800px 480px at 100% 0%, rgba(46,230,166,.12), transparent 50%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
}
a { color: #b9a8ff; text-decoration: none; }
a:hover { text-decoration: underline; }
.top {
  max-width: 920px; margin: 0 auto; padding: 16px 18px;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.brand { font-weight: 800; color: var(--text); letter-spacing: .2px; }
nav { display: flex; gap: 14px; flex-wrap: wrap; font-size: .92rem; }
main { max-width: 920px; margin: 0 auto; padding: 8px 18px 64px; }
.hero h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); line-height: 1.15; margin: 0 0 10px; }
.eyebrow { color: var(--accent2); font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.lead { color: var(--muted); margin: 0 0 18px; font-size: 1.05rem; }
.card {
  background: linear-gradient(180deg, rgba(255,255,255,.03), transparent), var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  margin: 14px 0;
}
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 720px) { .grid { grid-template-columns: 1fr; } }
label { display: flex; flex-direction: column; gap: 6px; font-size: .9rem; color: var(--muted); }
input, select, textarea {
  width: 100%; border-radius: 12px; border: 1px solid var(--line);
  background: #0b1220; color: var(--text); padding: 11px 12px; font: inherit;
}
.actions { display: flex; gap: 10px; align-items: center; margin-top: 12px; flex-wrap: wrap; }
button {
  border: 0; border-radius: 12px; padding: 11px 16px; font-weight: 700; cursor: pointer; font: inherit;
}
.primary { background: linear-gradient(90deg, #7c5cff, #5b8cff); color: white; }
.ghost { background: #18233a; color: var(--text); border: 1px solid var(--line); }
.out-label { margin-top: 16px; display: block; color: var(--muted); font-size: .9rem; }
#output { margin-top: 8px; min-height: 160px; }
.hint { color: var(--accent2); font-size: .9rem; }
.fineprint { color: var(--muted); font-size: .88rem; }
.steps { margin: 0; padding-left: 1.2rem; color: var(--text); }
.steps li { margin: 6px 0; }
footer { max-width: 920px; margin: 0 auto; padding: 0 18px 40px; color: var(--muted); font-size: .85rem; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; }