/* Fernsy website – system fonts only, no external resources. */
:root {
  --bg: #12162f;
  --bg-2: #22195a;
  --bg-3: #173f72;
  --text: #f4f2ff;
  --muted: #b9b6d6;
  --card: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.12);
  --accent: #ffb878;
  --accent-2: #f2766a;
  --link: #ffd2a6;
  --max: 1080px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: var(--text);
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-2) 55%, var(--bg-3) 100%) fixed;
  min-height: 100vh;
}

a { color: var(--link); }
a:hover { color: #fff; }

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

/* Header */
header.top { padding: 18px 0; }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 20px; }
.brand img { width: 36px; height: 36px; }
nav.top { display: flex; gap: 18px; flex-wrap: wrap; font-size: 15px; }
nav.top a { color: var(--muted); text-decoration: none; }
nav.top a:hover, nav.top a[aria-current] { color: var(--text); }

/* Hero */
.hero { text-align: center; padding: 48px 0 24px; }
.hero img.icon { width: 168px; height: 168px; filter: drop-shadow(0 18px 36px rgba(0, 0, 0, 0.45)); }
.hero h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.1; margin: 18px 0 10px; letter-spacing: -0.02em; }
.hero p.lead { font-size: clamp(18px, 2.4vw, 22px); color: var(--muted); max-width: 680px; margin: 0 auto 26px; }
.badge {
  display: inline-block; padding: 12px 22px; border-radius: 999px; font-weight: 600;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #2a1036; text-decoration: none;
}
.note { font-size: 14px; color: var(--muted); margin-top: 14px; }

/* Gallery */
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; padding: 36px 0; }
.gallery img { width: 100%; height: auto; display: block; border-radius: 12px; border: 1px solid var(--border); box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35); }

/* Features */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; padding: 12px 0 40px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 22px; }
.card h3 { margin: 0 0 8px; font-size: 19px; }
.card p, .card ul { margin: 0; color: var(--muted); }
.card ul { padding-left: 18px; }

.callout { background: var(--card); border: 1px solid var(--border); border-left: 4px solid var(--accent); border-radius: 12px; padding: 18px 22px; margin: 0 0 48px; color: var(--muted); }
.callout strong { color: var(--text); }

/* Text pages */
main.text { max-width: 760px; margin: 0 auto; padding: 24px 20px 60px; }
main.text h1 { font-size: 36px; margin: 10px 0 18px; }
main.text h2 { font-size: 22px; margin: 34px 0 8px; }
main.text p, main.text li { color: #e2e0f5; }
details { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 14px 18px; margin: 10px 0; }
details summary { cursor: pointer; font-weight: 600; }
details p { margin: 10px 0 0; }
kbd { font: 14px ui-monospace, SFMono-Regular, Menlo, monospace; background: rgba(255,255,255,0.12); border-radius: 5px; padding: 1px 6px; }

/* Footer */
footer { border-top: 1px solid var(--border); padding: 26px 0 40px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--muted); }
footer nav { display: flex; gap: 16px; flex-wrap: wrap; }

@media (max-width: 600px) {
  header.top .wrap { flex-direction: column; align-items: flex-start; }
  .gallery { grid-template-columns: 1fr; }
}