:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #07080d;
  color: #f5f7fb;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% 4%, rgba(126, 95, 255, .24), transparent 34rem),
    radial-gradient(circle at 92% 0%, rgba(32, 220, 190, .16), transparent 28rem),
    linear-gradient(180deg, #07080d, #0c0f17 52%, #07080d);
}
.shell { width: min(1240px, calc(100vw - 32px)); margin: 0 auto; padding: 38px 0 70px; }
.hero { display: flex; justify-content: space-between; align-items: flex-end; gap: 28px; margin-bottom: 22px; }
.eyebrow { margin: 0 0 12px; color: #98a4ba; letter-spacing: .16em; text-transform: uppercase; font-size: 12px; }
h1 { margin: 0; font-size: clamp(56px, 10vw, 116px); line-height: .84; letter-spacing: -.08em; }
h2 { margin-top: 0; }
.sub { color: #c5ccda; max-width: 780px; font-size: 17px; line-height: 1.6; }
.status, .panel, .notice, .card, .result-card { border: 1px solid rgba(255,255,255,.13); background: rgba(14,17,27,.76); backdrop-filter: blur(18px); }
.status { border-radius: 999px; padding: 11px 14px; color: #dbe3f2; white-space: nowrap; }
.tabs { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0; }
button, .tab { border: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.07); color: #f5f7fb; border-radius: 14px; padding: 11px 15px; font-weight: 750; cursor: pointer; }
button:hover { background: rgba(255,255,255,.12); }
button.primary, .tab.active { background: #f5f7fb; color: #080a10; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.grid { display: grid; grid-template-columns: 1fr 370px; gap: 18px; }
.panel { border-radius: 28px; padding: 22px; box-shadow: 0 24px 80px rgba(0,0,0,.28); }
.editor { min-height: 690px; }
label { display: block; margin: 14px 0 8px; color: #dce3ef; font-weight: 650; font-size: 13px; }
input, textarea, select { width: 100%; border: 1px solid rgba(255,255,255,.14); border-radius: 16px; background: rgba(255,255,255,.06); color: #f5f7fb; outline: none; }
input, select { padding: 12px 13px; }
textarea { min-height: 430px; resize: vertical; padding: 16px; font-size: 16px; line-height: 1.58; }
.row { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.between { justify-content: space-between; }
.check { display: flex; gap: 10px; align-items: flex-start; color: #cbd4e4; line-height: 1.45; }
.check input { width: auto; margin-top: 3px; }
.notice { border-radius: 18px; padding: 14px; line-height: 1.5; color: #cbd4e4; margin-top: 18px; }
.drop { border: 1px dashed rgba(255,255,255,.25); border-radius: 18px; padding: 24px; display: grid; place-items: center; background: rgba(255,255,255,.05); cursor: pointer; }
.drop input { display: none; }
.muted { color: #aab5c8; line-height: 1.55; }
.result { margin-top: 18px; }
.result-card, .card { border-radius: 18px; padding: 14px; color: #dce5f4; }
.cards { display: grid; gap: 12px; }
.card strong { color: #fff; }
.card small { display: block; color: #aab5c8; margin-top: 5px; }
a { color: #fff; }
a button { margin-top: 8px; }
audio { width: 100%; margin-top: 12px; }
.prose { color: #cbd4e4; line-height: 1.6; }
.codegrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 18px 0; }
.codegrid div { border: 1px solid rgba(255,255,255,.12); border-radius: 18px; padding: 14px; background: rgba(255,255,255,.05); }
code { display: block; margin-top: 8px; background: rgba(0,0,0,.35); padding: 8px 10px; border-radius: 10px; color: #eff3ff; overflow-x: auto; }
@media (max-width: 920px) { .hero { display: block; } .status { display: inline-flex; margin-top: 14px; white-space: normal; } .grid { grid-template-columns: 1fr; } }