:root {
  --bg: #ffffff;
  --bg-soft: #f5f4fb;
  --text: #16142b;
  --muted: #5d5a73;
  --line: #e4e2f0;
  --accent: #6352e0;
  --accent-text: #4f3fc9;
  --hero-from: #262450;
  --hero-to: #12112a;
  --radius: 18px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0e1f;
    --bg-soft: #1a1930;
    --text: #f2f1fa;
    --muted: #a9a6c2;
    --line: #2c2a47;
    --accent: #9287f7;
    --accent-text: #a79ef9;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a { color: var(--accent-text); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }

/* Top bar */
.top { border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { font-weight: 700; letter-spacing: -0.01em; color: var(--text); text-decoration: none; }
.top nav { display: flex; gap: 20px; font-size: 15px; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover, .top nav a[aria-current] { color: var(--text); }

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--hero-from), var(--hero-to));
  color: #f2f1fa;
  padding: 72px 0 64px;
}
.hero h1 { font-size: clamp(34px, 6vw, 48px); line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 16px; }
.hero p { font-size: 19px; color: #c9c5ea; margin: 0; max-width: 560px; }
.hero .icon { width: 96px; height: 96px; border-radius: 22px; margin-bottom: 24px; box-shadow: 0 10px 30px rgba(0,0,0,.35); }
.hero .actions { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }

.button {
  display: inline-block; padding: 12px 20px; border-radius: 12px;
  background: #6352e0; color: #fff; font-weight: 600; text-decoration: none;
}
.button.ghost { background: rgba(255,255,255,.1); color: #f2f1fa; }
.button:hover { filter: brightness(1.1); }
.badge-soon { display: inline-block; padding: 12px 20px; border-radius: 12px; border: 1px solid rgba(255,255,255,.25); color: #c9c5ea; }

/* Sections */
main section { padding: 56px 0; border-bottom: 1px solid var(--line); }
main section:last-child { border-bottom: 0; }
h2 { font-size: 26px; letter-spacing: -0.01em; line-height: 1.25; margin: 0 0 16px; }
h3 { font-size: 18px; margin: 28px 0 6px; }
p { margin: 0 0 14px; }
.lead { font-size: 19px; color: var(--muted); }
ul { padding-left: 22px; margin: 0 0 14px; }
li { margin-bottom: 6px; }

/* Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-top: 24px; }
.card { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.card h3 { margin-top: 0; }
.card p { color: var(--muted); font-size: 15px; margin: 0; }

.app-card {
  display: flex; gap: 20px; align-items: center; margin-top: 24px;
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; color: inherit; text-decoration: none;
}
.app-card img { width: 72px; height: 72px; border-radius: 16px; flex: none; }
.app-card h3 { margin: 0 0 4px; }
.app-card p { margin: 0; color: var(--muted); font-size: 15px; }
.app-card:hover { border-color: var(--accent); }

/* Long text pages */
.doc { padding: 48px 0 56px; }
.doc h1 { font-size: clamp(30px, 5vw, 40px); letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 8px; }
.doc .updated { color: var(--muted); font-size: 15px; margin-bottom: 32px; }
.doc h2 { font-size: 21px; margin-top: 40px; }
.summary { background: var(--bg-soft); border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 12px; padding: 18px 20px; margin: 24px 0; }
.summary p:last-child { margin: 0; }

details { border-bottom: 1px solid var(--line); padding: 14px 0; }
details summary { cursor: pointer; font-weight: 600; }
details p { margin: 10px 0 0; color: var(--muted); }

.contact { font-size: 20px; font-weight: 600; }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--muted); font-size: 14px; }
footer p { margin: 0 0 6px; }
footer nav { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 14px; }
footer a { color: var(--muted); }