:root {
  color-scheme: dark;
  --bg: #090b12;
  --panel: rgba(255,255,255,.075);
  --panel-2: rgba(255,255,255,.045);
  --text: #eef3ff;
  --muted: #9ca9c3;
  --line: rgba(255,255,255,.12);
  --accent: #7c5cff;
  --accent-2: #18d5b5;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 20% 0%, rgba(124,92,255,.35), transparent 34rem),
    radial-gradient(circle at 80% 20%, rgba(24,213,181,.20), transparent 30rem),
    var(--bg);
  color: var(--text);
}
.shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 56px 0; }
.hero { padding: 64px 0 42px; }
.eyebrow { margin: 0 0 12px; color: var(--accent-2); text-transform: uppercase; letter-spacing: .16em; font-size: 12px; font-weight: 800; }
h1 { max-width: 900px; margin: 0; font-size: clamp(42px, 7vw, 88px); line-height: .92; letter-spacing: -.07em; }
h2 { margin: 0; font-size: 30px; letter-spacing: -.03em; }
h3 { margin: 0 0 10px; font-size: 20px; }
p { color: var(--muted); line-height: 1.6; }
.lead { max-width: 760px; font-size: 19px; margin: 24px 0 0; }
.hero-actions, .controls { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 28px; }
.button { border: 1px solid var(--line); color: var(--text); text-decoration: none; border-radius: 999px; padding: 12px 18px; font-weight: 800; background: rgba(255,255,255,.06); cursor: pointer; }
.button.primary { background: linear-gradient(135deg, var(--accent), #5fcbff); border: 0; color: white; }
.button.secondary:hover, .button:hover { transform: translateY(-1px); }
.button.small { padding: 9px 13px; font-size: 13px; }
.panel, .card { border: 1px solid var(--line); background: linear-gradient(180deg, var(--panel), var(--panel-2)); box-shadow: 0 24px 80px rgba(0,0,0,.28); backdrop-filter: blur(18px); }
.panel { border-radius: 28px; padding: 24px; }
.panel-header { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; margin-bottom: 18px; }
textarea { width: 100%; min-height: 260px; resize: vertical; border: 1px solid var(--line); border-radius: 18px; padding: 18px; background: rgba(0,0,0,.28); color: var(--text); font: 14px/1.55 ui-monospace, SFMono-Regular, Menlo, monospace; outline: none; }
textarea:focus { border-color: rgba(124,92,255,.8); box-shadow: 0 0 0 4px rgba(124,92,255,.15); }
input[type=file] { color: var(--muted); }
.report { margin-top: 22px; border: 1px solid var(--line); background: rgba(0,0,0,.22); border-radius: 18px; padding: 20px; white-space: pre-wrap; line-height: 1.55; }
.report.empty { color: var(--muted); }
.report strong { color: white; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 20px; }
.card { border-radius: 22px; padding: 22px; }
.card p { margin-bottom: 0; }
code { color: #c7f9ee; }
@media (max-width: 800px) {
  .shell { width: min(100% - 20px, 1120px); padding: 30px 0; }
  .hero { padding-top: 36px; }
  .grid { grid-template-columns: 1fr; }
  .panel { padding: 16px; border-radius: 22px; }
  .panel-header { flex-direction: column; }
}