:root {
  --brand: #4CAF50;
  --brand-dark: #388E3C;
  --bg: #0b0d12;
  --text: #0f172a;
  --muted: #475569;
  --surface: #ffffff;
  --ring: rgba(76, 175, 80, 0.15);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d12;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --surface: #0f172a;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: linear-gradient(180deg, #f8fafc, #f1f5f9);
}
@media (prefers-color-scheme: dark) {
  body { background: radial-gradient(1200px 600px at 20% -10%, rgba(76,175,80,0.25), transparent), radial-gradient(900px 500px at 120% -20%, rgba(56,142,60,0.25), transparent), #0b0d12; }
}

header.nav {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: saturate(180%) blur(10px);
  background: rgba(255,255,255,0.7);
  border-bottom: 1px solid rgba(15,23,42,0.06);
}
@media (prefers-color-scheme: dark) {
  header.nav { background: rgba(15,23,42,0.6); border-bottom-color: rgba(255,255,255,0.08); }
}
.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.row { display: flex; gap: 16px; align-items: center; justify-content: space-between; min-height: 64px; }
.logo { display: flex; gap: 12px; align-items: center; }
.logo span:first-child { font-size: 28px; }
.logo span:last-child { font-weight: 700; letter-spacing: .2px; }
.nav-actions a { color: var(--text); text-decoration: none; margin-left: 12px; opacity: 0.9; }
.nav-actions a:hover { opacity: 1; }

.hero {
  position: relative; overflow: hidden;
  padding: 96px 0 64px;
}
.hero .grid {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: center;
}
.badge { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; padding: 6px 10px; border-radius: 999px; background: rgba(76,175,80,0.12); color: var(--brand-dark); border: 1px solid rgba(76,175,80,0.18); }
.title { font-size: clamp(28px, 6vw, 48px); line-height: 1.1; margin: 12px 0 12px; letter-spacing: -0.5px; }
.lead { font-size: clamp(16px, 2.8vw, 18px); color: var(--muted); margin-bottom: 24px; }
.cta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.btn { appearance: none; border: 0; cursor: pointer; border-radius: 10px; padding: 12px 16px; font-weight: 600; text-decoration: none; display: inline-block; }
.btn.primary { background: linear-gradient(135deg, var(--brand), var(--brand-dark)); color: #fff; box-shadow: 0 10px 20px -10px var(--brand); }
.btn.secondary { background: rgba(2,6,23,0.04); color: var(--text); border: 1px solid rgba(15,23,42,0.08); }
@media (prefers-color-scheme: dark) {
  .btn.secondary { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.08); }
}
.note { font-size: 12px; color: var(--muted); margin-top: 8px; }

.mock {
  border-radius: 20px; border: 1px solid rgba(15,23,42,0.08);
  background: linear-gradient(135deg, rgba(76,175,80,0.12), rgba(56,142,60,0.08));
  min-height: 360px; position: relative; overflow: hidden;
}
@media (prefers-color-scheme: dark) {
  .mock { border-color: rgba(255,255,255,0.08); background: linear-gradient(135deg, rgba(76,175,80,0.15), rgba(56,142,60,0.12)); }
}
.mock:after { content: ""; position: absolute; inset: -20% -10% auto; height: 60%; background: radial-gradient(600px 260px at 20% 30%, rgba(76,175,80,0.35), transparent), radial-gradient(520px 220px at 90% 10%, rgba(56,142,60,0.35), transparent); filter: blur(20px); }

.section { padding: 64px 0; }
.section h2 { font-size: clamp(20px, 4vw, 28px); margin: 0 0 12px; }
.section p.desc { color: var(--muted); margin: 0 0 32px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 900px) { .hero .grid { grid-template-columns: 1fr; } .features { grid-template-columns: 1fr; } }
.card { border: 1px solid rgba(15,23,42,0.08); border-radius: 16px; padding: 18px; background: var(--surface); }
@media (prefers-color-scheme: dark) { .card { border-color: rgba(255,255,255,0.08); } }
.card h3 { margin: 8px 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.emoji { font-size: 22px; }

.cta-bar { display: flex; gap: 12px; margin-top: 16px; align-items: center; flex-wrap: wrap; }

footer { padding: 32px 0; border-top: 1px solid rgba(15,23,42,0.08); color: var(--muted); }
@media (prefers-color-scheme: dark) { footer { border-top-color: rgba(255,255,255,0.08); } }
footer .links { display: flex; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--text); }

.store-badges { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.badge-pill { font-size: 12px; padding: 7px 10px; border-radius: 999px; border: 1px dashed rgba(15,23,42,0.15); color: var(--muted); }
@media (prefers-color-scheme: dark) { .badge-pill { border-color: rgba(255,255,255,0.18); } }

.shadow-ring { box-shadow: 0 0 0 8px var(--ring); }

/* Simple fade-in */
[data-animate] { opacity: 0; transform: translateY(8px); animation: fadeIn .7s ease forwards; }
@keyframes fadeIn { to { opacity: 1; transform: none; } }