:root {
  --blue: #0a84ff;
  --blue-dark: #0040c8;
  --ink: #1c1c1e;
  --muted: #6e6e73;
  --bg: #f5f7fb;
  --card: #ffffff;
  --radius: 18px;
  --maxw: 880px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* Header / hero */
.hero {
  background: linear-gradient(160deg, var(--blue) 0%, var(--blue-dark) 100%);
  color: #fff;
  text-align: center;
  padding: 72px 20px 64px;
}
.hero img.icon {
  width: 120px; height: 120px;
  border-radius: 27%;
  box-shadow: 0 18px 40px rgba(0,0,0,.25);
}
.hero h1 { font-size: 2.2rem; margin: 22px 0 6px; letter-spacing: -0.5px; }
.hero p.tag { font-size: 1.1rem; opacity: .92; margin: 0 auto; max-width: 540px; }

.badge {
  display: inline-block; margin-top: 26px; padding: 13px 26px;
  background: #fff; color: var(--blue-dark); font-weight: 600;
  border-radius: 40px; box-shadow: 0 8px 22px rgba(0,0,0,.18);
}
.badge:hover { text-decoration: none; transform: translateY(-1px); }

/* Nav */
nav.top {
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid #e5e7ee;
  position: sticky; top: 0; z-index: 10;
}
nav.top .wrap { display: flex; align-items: center; gap: 18px; height: 56px; }
nav.top .brand { font-weight: 700; color: var(--ink); display: flex; align-items: center; gap: 10px; }
nav.top .brand img { width: 26px; height: 26px; border-radius: 7px; }
nav.top .links { margin-left: auto; display: flex; gap: 20px; font-size: .95rem; }

/* Sections */
section { padding: 52px 0; }
section h2 { font-size: 1.6rem; margin: 0 0 22px; letter-spacing: -0.3px; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; }
.feature {
  background: var(--card); border: 1px solid #eceef3; border-radius: var(--radius);
  padding: 22px; box-shadow: 0 1px 2px rgba(0,0,0,.03);
}
.feature h3 { margin: 0 0 6px; font-size: 1.08rem; }
.feature p { margin: 0; color: var(--muted); font-size: .96rem; }

.shots { display: flex; gap: 16px; overflow-x: auto; padding-bottom: 10px; scroll-snap-type: x mandatory; }
.shots img {
  height: 460px; border-radius: 22px; border: 1px solid #e5e7ee;
  box-shadow: 0 10px 30px rgba(0,0,0,.10); scroll-snap-align: center; flex: 0 0 auto;
}

/* Document pages (privacy / support) */
.doc { background: var(--card); }
.doc .wrap { padding-top: 44px; padding-bottom: 56px; }
.doc h1 { font-size: 2rem; margin: 0 0 6px; }
.doc .updated { color: var(--muted); margin: 0 0 30px; font-size: .92rem; }
.doc h2 { font-size: 1.25rem; margin: 34px 0 10px; }
.doc p, .doc li { color: #33333a; }
.doc ul { padding-left: 22px; }
.callout {
  background: #eef4ff; border: 1px solid #d6e4ff; border-radius: 14px;
  padding: 16px 18px; margin: 22px 0; color: #234;
}

details {
  background: var(--card); border: 1px solid #eceef3; border-radius: 14px;
  padding: 4px 18px; margin: 12px 0;
}
details summary {
  cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none;
}
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; float: right; color: var(--muted); font-weight: 400; }
details[open] summary::after { content: "–"; }
details p { margin: 0 0 16px; color: var(--muted); }

/* Footer */
footer {
  text-align: center; color: var(--muted); font-size: .9rem;
  padding: 40px 20px; border-top: 1px solid #e5e7ee; background: var(--bg);
}
footer a { margin: 0 10px; }

@media (max-width: 560px) {
  .hero h1 { font-size: 1.8rem; }
  .shots img { height: 380px; }
  nav.top .links { gap: 14px; }
}