:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #eef1f5;
  --text: #11161d;
  --muted: #5b6573;
  --line: #dde2e9;
  --accent: #1f6feb;
  --accent-soft: #e3edff;
  --radius: 18px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 8px 24px rgba(16, 24, 40, .06);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1016;
    --surface: #141a22;
    --surface-2: #1b232d;
    --text: #e9eef5;
    --muted: #9aa6b5;
    --line: #26303c;
    --accent: #58a6ff;
    --accent-soft: #15253c;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

.wrap { width: min(1080px, 100% - 32px); margin-inline: auto; }

/* Header and menu */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.01em;
}
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 8px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, #1f6feb, #22b8cf);
  color: #fff; font-size: 15px; font-weight: 800;
}

.nav { display: flex; align-items: center; gap: 4px; }

.nav > a, .nav summary {
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--text);
  font-size: 15px;
  cursor: pointer;
}
.nav > a:hover, .nav summary:hover { background: var(--surface-2); text-decoration: none; }
.nav > a[aria-current="page"] { color: var(--accent); }

.menu { position: relative; }
.menu summary { list-style: none; display: flex; align-items: center; gap: 6px; }
.menu summary::-webkit-details-marker { display: none; }
.menu summary::after {
  content: ""; width: 7px; height: 7px;
  border-right: 2px solid currentColor; border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px); opacity: .6;
}
.menu[open] summary::after { transform: rotate(-135deg) translateY(-1px); }

.menu-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  width: 300px;
  padding: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.menu-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px; border-radius: 10px; color: var(--text);
}
.menu-item:hover { background: var(--surface-2); text-decoration: none; }
.menu-item img { width: 40px; height: 40px; border-radius: 10px; }
.menu-item strong { display: block; font-size: 15px; line-height: 1.3; }
.menu-item span { display: block; color: var(--muted); font-size: 13px; line-height: 1.35; }

/* Sections */

.hero { padding: 72px 0 40px; }
.hero h1 {
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.08;
  letter-spacing: -.03em;
  margin: 0 0 16px;
}
.hero p.lead { font-size: clamp(17px, 2.2vw, 20px); color: var(--muted); max-width: 640px; margin: 0; }

.app-hero { display: grid; grid-template-columns: auto 1fr; gap: 28px; align-items: center; }
.app-hero .icon { width: 128px; height: 128px; border-radius: 28px; box-shadow: var(--shadow); }
.app-hero .subtitle { font-size: 20px; font-weight: 600; color: var(--muted); margin: -8px 0 12px; }

.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line);
  font-size: 14px; color: var(--muted);
}
.badge.primary { background: var(--accent-soft); border-color: transparent; color: var(--accent); font-weight: 600; }

section { padding: 36px 0; }
section h2 { font-size: clamp(24px, 3.4vw, 32px); letter-spacing: -.02em; margin: 0 0 8px; }
section > .wrap > p.intro { color: var(--muted); margin: 0 0 24px; max-width: 680px; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 6px; font-size: 18px; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .emoji {
  width: 40px; height: 40px; border-radius: 11px;
  display: grid; place-items: center; font-size: 21px;
  background: var(--surface-2); margin-bottom: 14px;
}

.app-card { display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: start; color: var(--text); }
.app-card:hover { text-decoration: none; border-color: var(--accent); }
.app-card img { width: 72px; height: 72px; border-radius: 17px; }
.app-card .more { margin-top: 10px; color: var(--accent); font-weight: 600; font-size: 15px; }

.formats { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.formats span {
  padding: 4px 10px; border-radius: 8px; font-size: 13px; font-weight: 600;
  background: var(--surface-2); color: var(--text);
}

.note {
  background: var(--accent-soft);
  border-radius: var(--radius);
  padding: 20px 22px;
  color: var(--text);
}
.note p { margin: 0; }

.links { display: flex; flex-wrap: wrap; gap: 12px; }
.button {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--line);
  color: var(--text); font-weight: 600;
}
.button:hover { text-decoration: none; border-color: var(--accent); }

.site-footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.site-footer a { color: var(--muted); }

/* Phones */

@media (max-width: 640px) {
  .hero { padding: 44px 0 24px; }
  .app-hero { grid-template-columns: 1fr; gap: 18px; }
  .app-hero .icon { width: 96px; height: 96px; border-radius: 22px; }
  .nav > a.hide-sm { display: none; }
  .menu-panel { position: fixed; left: 16px; right: 16px; top: 64px; width: auto; }
  .app-card img { width: 60px; height: 60px; border-radius: 14px; }
}