/* Лендінг: самодостатній CSS, без залежностей від бандла додатка. */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #ffffff;
  --soft: #f6f7fb;
  --border: #e4e7ee;
  --text: #1a2030;
  --dim: #5c6577;
  --accent: #4f6ef7;
  --accent-soft: #eef1fe;
  --radius: 14px;
  --max: 1080px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Inter, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

a { color: var(--accent); }

/* header */
.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(10px);
  z-index: 10;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 62px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
  text-decoration: none;
}
.brand .mark {
  width: 30px; height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, #4f6ef7, #7b8ffb);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
}
.brand b { color: var(--accent); }
.site-header nav { margin-left: auto; display: flex; align-items: center; gap: 18px; }
.site-header nav a { color: var(--dim); text-decoration: none; font-size: 14px; }
.site-header nav a:hover { color: var(--text); }

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border: 1px solid var(--border);
  color: var(--text);
  background: #fff;
  transition: transform 0.12s, box-shadow 0.12s;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px rgba(79, 110, 247, 0.28);
}
.btn.sm { padding: 8px 16px; font-size: 14px; }

/* hero */
.hero { padding: 64px 0 48px; }
.hero h1 {
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  max-width: 16em;
}
.hero .lead {
  font-size: 18px;
  color: var(--dim);
  max-width: 42em;
  margin-bottom: 28px;
}
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.hero .note { font-size: 14px; color: var(--dim); margin-top: 14px; }

.shot {
  margin-top: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--soft);
  box-shadow: 0 12px 40px rgba(20, 26, 48, 0.08);
}
.shot img { display: block; width: 100%; height: auto; }

/* sections */
section { padding: 52px 0; }
section.alt { background: var(--soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
h2 {
  font-size: clamp(23px, 3.4vw, 30px);
  letter-spacing: -0.015em;
  margin-bottom: 10px;
}
section > .wrap > p.sub { color: var(--dim); margin-bottom: 26px; max-width: 46em; }
h3 { font-size: 17px; margin-bottom: 6px; }

.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.card p { color: var(--dim); font-size: 15px; }
.card .num {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 10px;
}

/* table */
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; }
table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 460px; }
th, td { padding: 11px 16px; text-align: left; border-bottom: 1px solid var(--border); }
th { font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--dim); font-weight: 600; }
tbody tr:last-child td { border-bottom: none; }
td.num-col { font-variant-numeric: tabular-nums; white-space: nowrap; }
caption { caption-side: bottom; padding: 12px 16px; font-size: 13px; color: var(--dim); text-align: left; }

/* prose lists */
.prose li { margin-bottom: 10px; color: var(--dim); }
.prose ul { padding-left: 20px; }
.prose h3 { margin-top: 22px; color: var(--text); }
.prose p { color: var(--dim); margin-bottom: 12px; }

/* footer */
footer {
  border-top: 1px solid var(--border);
  padding: 30px 0 44px;
  font-size: 14px;
  color: var(--dim);
}
footer .wrap { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
footer .langs { margin-left: auto; display: flex; gap: 12px; }
footer a { text-decoration: none; }

@media (max-width: 640px) {
  .site-header nav a.hide-sm { display: none; }
  .hero { padding: 40px 0 32px; }
  section { padding: 40px 0; }
}