:root {
  --canvas: #F2F1ED;
  --surface: #FFFFFF;
  --ink: #17181A;
  --ink2: rgba(23, 24, 26, 0.62);
  --ink3: rgba(23, 24, 26, 0.38);
  --hairline: rgba(23, 24, 26, 0.10);
  --accent: #4C6444;
  --accent-soft: rgba(76, 100, 68, 0.12);
  --radius: 28px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --canvas: #14140F;
    --surface: #201F1B;
    --ink: #F1EFE8;
    --ink2: rgba(241, 239, 232, 0.62);
    --ink3: rgba(241, 239, 232, 0.38);
    --hairline: rgba(241, 239, 232, 0.10);
    --accent: #8FB07C;
    --accent-soft: rgba(143, 176, 124, 0.14);
  }
  .motif, .border { filter: brightness(1.6) saturate(0.9); }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }

header.top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 0;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 22px; color: var(--ink); text-decoration: none; letter-spacing: -0.02em; }
.logo img { width: 30px; height: 30px; }
.logo b { font-weight: 800; }
.logo span { color: var(--accent); }
nav a { margin-left: 18px; color: var(--ink2); text-decoration: none; font-size: 15px; }
nav a:hover { color: var(--ink); }

.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; padding: 40px 0 56px; }
.hero h1 { font-size: clamp(36px, 6vw, 60px); line-height: 1.04; letter-spacing: -0.035em; margin: 0 0 18px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lead { font-size: 20px; color: var(--ink2); margin: 0 0 28px; max-width: 30ch; }
.badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--ink); color: var(--canvas);
  border-radius: 999px; padding: 14px 24px; font-weight: 600; text-decoration: none;
}
.badge small { display: block; font-weight: 500; opacity: 0.7; font-size: 12px; }
.note { color: var(--ink3); font-size: 14px; margin-top: 12px; }

.stack { position: relative; height: 420px; }
.sticker {
  position: absolute; background: var(--surface); border-radius: var(--radius);
  padding: 22px 26px; box-shadow: 0 2px 6px rgba(0,0,0,.06), 0 18px 40px rgba(0,0,0,.10);
  width: 230px;
}
.sticker img { width: 92px; height: 92px; display: block; margin-bottom: 10px; }
.sticker .el { font-size: 30px; font-weight: 900; letter-spacing: -0.02em; }
.sticker .tr { color: var(--accent); font-weight: 600; font-size: 15px; }
.sticker .ru { color: var(--ink2); font-size: 15px; }
.s1 { top: 0; left: 10%; transform: rotate(-5deg); }
.s2 { top: 130px; right: 0; transform: rotate(4deg); }
.s3 { bottom: 0; left: 0; transform: rotate(-2deg); }

.border { display: block; width: 100%; height: 28px; background: url(img/meander.svg) repeat-x left center / auto 28px; opacity: 0.85; margin: 12px 0 48px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding-bottom: 56px; }
.card { background: var(--surface); border-radius: var(--radius); padding: 26px; }
.card img { width: 54px; height: 54px; }
.card h3 { margin: 12px 0 6px; font-size: 20px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--ink2); }

.doc { background: var(--surface); border-radius: var(--radius); padding: 36px clamp(20px, 5vw, 56px); margin: 10px 0 56px; }
.doc h1 { font-size: 36px; letter-spacing: -0.03em; margin: 0 0 6px; }
.doc .updated { color: var(--ink3); margin: 0 0 28px; }
.doc h2 { font-size: 22px; margin: 34px 0 8px; letter-spacing: -0.01em; }
.doc li { margin: 6px 0; }
.doc hr { border: 0; border-top: 1px solid var(--hairline); margin: 44px 0; }

footer { border-top: 1px solid var(--hairline); padding: 28px 0 48px; color: var(--ink3); font-size: 14px; display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between; }
footer a { color: var(--ink2); text-decoration: none; margin-right: 16px; }

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding-top: 16px; }
  .stack { height: auto; display: flex; gap: 14px; overflow-x: auto; padding: 10px 4px 24px; scroll-snap-type: x mandatory; }
  .sticker { position: static; flex: 0 0 200px; transform: none !important; scroll-snap-align: start; }
  .sticker .el { font-size: 24px; }
  .features { grid-template-columns: 1fr; }
  nav a { margin-left: 12px; }
}