:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --ink: #12233b;
  --muted: #5b6b80;
  --line: #e2e8f0;
  --accent: #2f6fc4;
  --accent-dark: #1d4f94;
  --radius: 18px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1726;
    --card: #15233a;
    --ink: #eaf1fb;
    --muted: #9fb0c6;
    --line: #243552;
    --accent: #5ab0f0;
    --accent-dark: #8ccaf6;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }

header.top { border-bottom: 1px solid var(--line); background: var(--card); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.logo-mark { width: 32px; height: 32px; border-radius: 9px; background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff; display: grid; place-items: center; font-size: 17px; }
nav.top a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 15px; }
nav.top a:hover { color: var(--ink); }

.hero { padding: 64px 0 40px; }
.hero h1 { font-size: clamp(32px, 6vw, 48px); line-height: 1.12; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero p { font-size: 19px; color: var(--muted); max-width: 620px; margin: 0; }

h2 { font-size: 26px; margin: 48px 0 18px; letter-spacing: -0.01em; }
.apps { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); gap: 16px; }
.app { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; display: flex; gap: 16px; align-items: flex-start; }
.app img { width: 64px; height: 64px; border-radius: 15px; flex: none; }
.app h3 { margin: 0 0 4px; font-size: 18px; }
.app p { margin: 0 0 10px; color: var(--muted); font-size: 15px; line-height: 1.5; }
.app .links a { white-space: nowrap; display: inline-block; font-size: 14px; font-weight: 600; margin-right: 14px; text-decoration: none; }
.app .links a:hover { text-decoration: underline; }

.box { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; }
.box p { margin: 0 0 8px; }
.box p:last-child { margin-bottom: 0; }

.legal { padding: 40px 0 24px; max-width: 760px; }
.legal h1 { font-size: 34px; margin: 0 0 24px; }
.legal h2 { font-size: 20px; margin: 32px 0 8px; }
.legal p, .legal li { color: var(--ink); }
.legal dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 20px; margin: 0; }
.legal dt { color: var(--muted); }
.legal dd { margin: 0; }

footer { margin-top: 64px; border-top: 1px solid var(--line); padding: 24px 0 40px; color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); margin-right: 16px; }

@media (max-width: 560px) {
  nav.top a { margin-left: 12px; font-size: 14px; }
  .hero { padding: 40px 0 24px; }
  .legal dl { grid-template-columns: 1fr; gap: 0; }
  .legal dd { margin-bottom: 10px; }
}