:root {
  --indigo: #5b50e8;
  --indigo-dark: #3b31b5;
  --ink: #1e1b4b;
  --soft: #eef0ff;
  --text: #2a2850;
  --muted: #5d5b80;
  --line: #e2e4f5;
}
* { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.6;
}
a { color: var(--indigo); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

header.site { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: #fff; text-decoration: none; }
.brand img { width: 36px; height: 36px; border-radius: 9px; }
header.site nav a { color: var(--soft); text-decoration: none; margin-left: 20px; font-size: 15px; }
header.site nav a:hover { text-decoration: underline; }

.hero { color: #fff; background: radial-gradient(120% 140% at 0% 0%, #6d63f2 0%, var(--indigo) 38%, var(--indigo-dark) 100%); }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; padding: 40px 0 72px; }
.hero h1 { font-size: clamp(34px, 5vw, 52px); line-height: 1.08; letter-spacing: -0.02em; font-weight: 800; }
.hero p.lead { font-size: 19px; color: var(--soft); margin-top: 18px; max-width: 30em; }
.badge { display: inline-block; margin-top: 28px; padding: 12px 20px; border-radius: 999px; background: #fff; color: var(--indigo-dark); font-weight: 700; }
.note { font-size: 14px; color: var(--soft); opacity: 0.85; margin-top: 12px; }
.echo { width: 132px; height: 132px; padding: 10px; border-radius: 50%; background: var(--soft); box-shadow: 0 10px 28px rgba(30, 27, 75, 0.35); margin-bottom: 26px; }
.shot { width: 100%; max-width: 440px; justify-self: center; display: block; }

.features { padding: 72px 0; }
.features h2 { font-size: 30px; letter-spacing: -0.01em; color: var(--ink); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 28px; }
.card { border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.card h3 { font-size: 18px; color: var(--ink); margin-bottom: 6px; }
.card p { color: var(--muted); font-size: 15.5px; }
.der { color: #2563eb; font-weight: 700; } .die { color: #dc2626; font-weight: 700; } .das { color: #16a34a; font-weight: 700; }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: 14.5px; }
footer .row { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }

.doc-head { background: var(--indigo-dark); }
.doc { max-width: 720px; padding-top: 48px; padding-bottom: 72px; }
.doc h1 { font-size: 36px; color: var(--ink); letter-spacing: -0.02em; line-height: 1.15; }
.doc h2 { font-size: 21px; color: var(--ink); margin-top: 36px; margin-bottom: 8px; }
.doc p, .doc li { font-size: 16.5px; }
.doc p + p { margin-top: 12px; }
.doc ul { padding-left: 22px; margin-top: 8px; }
.doc li + li { margin-top: 6px; }
.doc .updated { color: var(--muted); margin-top: 8px; }

@media (max-width: 800px) {
  .wrap { padding: 0 16px; }
  .hero-grid { grid-template-columns: 1fr; padding: 24px 0 56px; gap: 36px; }
  .grid { grid-template-columns: 1fr; }
  .features { padding: 48px 0; }
}
.doc ul + p { margin-top: 12px; }