:root {
  --sky: #BFE3F4;
  --sky-light: #E3F2FA;
  --mint: #CFF0D8;
  --navy: #0F2A44;
  --navy-soft: #1F3D5C;
  --ink: #2A3340;
  --muted: #5B6878;
  --line: rgba(15, 42, 68, 0.12);
  --card: #FFFFFF;
  --shadow: 0 18px 40px rgba(15, 42, 68, 0.10);
  --radius: 22px;
  --radius-sm: 14px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font);
  color: var(--ink);
  background: linear-gradient(180deg, var(--sky-light) 0%, #FFFFFF 60%);
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  padding: 22px 0;
  position: sticky;
  top: 0;
  background: rgba(227, 242, 250, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  z-index: 50;
}
.site-header .inner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 600; color: var(--navy); }
.brand img { width: 36px; height: 36px; border-radius: 9px; box-shadow: 0 4px 12px rgba(15,42,68,0.15); }
.brand span { font-size: 18px; letter-spacing: -0.01em; }
.nav-links { display: flex; gap: 22px; font-size: 15px; }
.nav-links a { color: var(--navy-soft); }

/* Hero */
.hero {
  padding: 64px 0 56px;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, var(--sky) 0%, transparent 70%);
}
.hero-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center;
}
.hero h1 {
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.05;
  color: var(--navy);
  letter-spacing: -0.025em;
  margin-bottom: 18px;
  font-weight: 800;
}
.hero h1 .accent { color: #2B7DBF; }
.hero p.lead {
  font-size: 19px; color: var(--navy-soft); max-width: 540px; margin-bottom: 28px;
}
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 22px; border-radius: 999px;
  font-weight: 600; font-size: 16px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary { background: var(--navy); color: #fff; box-shadow: 0 8px 20px rgba(15,42,68,0.25); }
.btn-primary:hover { text-decoration: none; transform: translateY(-1px); box-shadow: 0 10px 26px rgba(15,42,68,0.32); }
.btn-secondary { background: #fff; color: var(--navy); border: 1px solid var(--line); }
.btn-secondary:hover { text-decoration: none; transform: translateY(-1px); }

.hero-art { position: relative; display: flex; justify-content: center; align-items: center; }
.hero-art img {
  width: 100%; max-width: 420px; height: auto;
  filter: drop-shadow(0 30px 50px rgba(15,42,68,0.25));
}

/* Features */
.section { padding: 72px 0; }
.section h2 {
  font-size: clamp(28px, 4vw, 40px);
  color: var(--navy);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  font-weight: 800;
}
.section .sub {
  color: var(--muted); font-size: 17px; max-width: 640px; margin-bottom: 40px;
}
.features {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}
.feature {
  background: var(--card); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
  border: 1px solid var(--line);
}
.feature .icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--sky); color: var(--navy);
  display: grid; place-items: center; font-size: 22px; margin-bottom: 16px;
}
.feature h3 { color: var(--navy); font-size: 19px; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 15px; }

/* Screenshots */
.shots {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 12px;
}
.shot {
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); background: var(--sky-light);
  border: 1px solid var(--line);
}
.shot img { width: 100%; height: auto; display: block; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 36px 0; margin-top: 40px;
  font-size: 14px; color: var(--muted);
}
.site-footer .inner {
  display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between; align-items: center;
}
.site-footer a { color: var(--navy-soft); }

/* Content pages (privacy, support) */
.page {
  padding: 56px 0 80px;
}
.page .narrow { max-width: 760px; margin: 0 auto; }
.page h1 {
  font-size: clamp(32px, 5vw, 44px);
  color: var(--navy); letter-spacing: -0.02em; font-weight: 800; margin-bottom: 8px;
}
.page .updated { color: var(--muted); font-size: 14px; margin-bottom: 32px; }
.page h2 {
  font-size: 22px; color: var(--navy); margin-top: 36px; margin-bottom: 12px; font-weight: 700;
}
.page h3 {
  font-size: 17px; color: var(--navy-soft); margin-top: 20px; margin-bottom: 6px; font-weight: 600;
}
.page p, .page li { color: var(--ink); font-size: 16px; margin-bottom: 12px; }
.page ul { padding-left: 22px; margin-bottom: 12px; }
.page li { margin-bottom: 6px; }
.page strong { color: var(--navy); }
.callout {
  background: var(--sky-light); border-left: 3px solid var(--navy);
  padding: 16px 20px; border-radius: 10px; margin: 18px 0;
}
.faq { border-top: 1px solid var(--line); margin-top: 32px; }
.faq details {
  border-bottom: 1px solid var(--line); padding: 18px 0;
}
.faq summary {
  font-weight: 600; color: var(--navy); cursor: pointer; font-size: 17px;
  list-style: none; display: flex; justify-content: space-between; align-items: center;
}
.faq summary::after { content: "+"; color: var(--muted); font-size: 22px; margin-left: 12px; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin-top: 10px; color: var(--ink); }

/* Responsive */
@media (max-width: 860px) {
  .hero { padding: 40px 0; }
  .hero-grid { grid-template-columns: 1fr; gap: 24px; text-align: center; }
  .hero-art img { max-width: 280px; }
  .cta-row { justify-content: center; }
  .features { grid-template-columns: 1fr; }
  .shots { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .section { padding: 48px 0; }
}