:root {
  --blue: #1677f2;
  --blue-deep: #0a2f9e;
  --purple: #8e44ec;
  --text: #1d1d1f;
  --secondary: #6e6e73;
  --page: #f5f5f7;
  --card: #ffffff;
  --line: rgba(0, 0, 0, 0.08);
  --radius: 22px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --blue: #3b93ff;
    --text: #f5f5f7;
    --secondary: #a1a1a6;
    --page: #000000;
    --card: #1c1c1e;
    --line: rgba(255, 255, 255, 0.1);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--page);
  -webkit-font-smoothing: antialiased;
}

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

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 720px; }

/* Navigation */
.nav {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: color-mix(in srgb, var(--page) 78%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand img { width: 30px; height: 30px; border-radius: 7px; }
.nav-links { display: flex; gap: 22px; font-size: 15px; }
.nav-links a { color: var(--secondary); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); text-decoration: none; }

/* Hero */
.hero { text-align: center; padding: 88px 0 72px; }
.hero .icon {
  width: 132px; height: 132px; border-radius: 30px;
  box-shadow: 0 20px 50px -12px rgba(22, 119, 242, 0.55);
}
.hero h1 { font-size: clamp(40px, 7vw, 64px); line-height: 1.05; letter-spacing: -0.025em; margin: 32px 0 16px; }
.hero p.lead { font-size: clamp(19px, 2.4vw, 23px); color: var(--secondary); max-width: 620px; margin: 0 auto 36px; }

.badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 22px; border-radius: 999px;
  background: var(--text); color: var(--page);
  font-weight: 600; font-size: 16px;
}
.badge:hover { text-decoration: none; opacity: 0.88; }
.badge svg { width: 20px; height: 20px; fill: currentColor; }
.soon { display: block; margin-top: 12px; font-size: 14px; color: var(--secondary); }

/* Sections */
section { padding: 56px 0; }
section h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.02em; line-height: 1.15; text-align: center; margin: 0 0 12px; }
section .sub { text-align: center; color: var(--secondary); margin: 0 auto 40px; max-width: 560px; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card {
  background: var(--card); border-radius: var(--radius); padding: 26px;
  border: 1px solid var(--line);
}
.card .glyph {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--blue), var(--blue-deep)); color: #fff; margin-bottom: 16px;
}
.card .glyph svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { margin: 0 0 6px; font-size: 19px; }
.card p { margin: 0; color: var(--secondary); font-size: 16px; }

/* Privacy band */
.band {
  border-radius: 28px; padding: 56px 32px; text-align: center; color: #fff;
  background: linear-gradient(160deg, var(--blue) 0%, var(--blue-deep) 100%);
}
.band h2 { color: #fff; }
.band p { max-width: 600px; margin: 0 auto; font-size: 19px; opacity: 0.9; }
.band a { color: #fff; text-decoration: underline; }

/* Pro */
.pro .card .glyph { background: linear-gradient(135deg, #8e44ec, #e8457a, #f39c34); }
.pro-note { text-align: center; color: var(--secondary); margin-top: 28px; font-size: 15px; }

/* Documents (privacy, support) */
.doc { padding: 64px 0 40px; }
.doc h1 { font-size: clamp(34px, 5vw, 46px); letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 8px; }
.doc .updated { color: var(--secondary); margin: 0 0 32px; }
.doc h2 { font-size: 24px; margin: 40px 0 12px; text-align: left; }
.doc h3 { font-size: 18px; margin: 28px 0 6px; }
.doc p, .doc li { color: var(--text); }
.doc ul { padding-left: 22px; }
.doc li { margin-bottom: 12px; }
.doc .card { margin: 24px 0; }
.contact { font-size: 20px; font-weight: 600; }

/* Footer */
footer { border-top: 1px solid var(--line); margin-top: 48px; padding: 28px 0 40px; font-size: 14px; color: var(--secondary); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
footer nav { display: flex; gap: 20px; }
footer a { color: var(--secondary); }

@media (max-width: 520px) {
  .nav-links { gap: 16px; }
  .hero { padding: 64px 0 48px; }
  .band { padding: 44px 22px; }
}