:root {
  --bg: #0a0a0a;
  --bg-alt: #111113;
  --surface: #15151a;
  --border: #23232a;
  --fg: #f5f5f7;
  --fg-dim: #a1a1aa;
  --accent: #c8ff00;
  --accent-soft: rgba(200, 255, 0, 0.12);
  --radius: 18px;
  --maxw: 1100px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--accent); text-decoration: none; }
a:hover { opacity: 0.85; }

h1, h2, h3 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 0.5em;
  color: var(--fg);
}

h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 1.2rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.4em; }

p { margin: 0 0 1em; color: var(--fg-dim); }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow { max-width: 760px; }

/* ───── Nav ───── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 600;
  font-size: 1rem;
}
.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}
.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  color: var(--fg-dim);
  font-size: 0.93rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--fg); opacity: 1; }

/* ───── Hero ───── */
.hero {
  padding: 100px 24px 120px;
  text-align: center;
  background:
    radial-gradient(ellipse at top, rgba(200, 255, 0, 0.08), transparent 60%),
    var(--bg);
  border-bottom: 1px solid var(--border);
}
.hero-inner {
  max-width: 760px;
  margin: 0 auto;
}
.hero-icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  margin-bottom: 28px;
  box-shadow: 0 30px 60px -20px rgba(200, 255, 0, 0.25), 0 0 0 1px var(--border);
}
.lede {
  font-size: 1.2rem;
  color: var(--fg-dim);
  max-width: 600px;
  margin: 1em auto 2em;
}
.app-store-badge {
  display: inline-block;
  margin: 0 0 22px;
  transition: transform 0.15s, opacity 0.2s;
  line-height: 0;
}
.app-store-badge svg {
  width: 180px;
  height: 60px;
  display: block;
}
.app-store-badge:hover { transform: translateY(-2px); opacity: 1; }

.cta-row {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  transition: transform 0.15s, background 0.2s, opacity 0.2s;
  cursor: pointer;
}
.btn:hover { transform: translateY(-1px); opacity: 1; }
.btn-primary {
  background: var(--accent);
  color: #0a0a0a;
}
.btn-primary:hover { background: #d4ff33; }
.btn-ghost {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--surface); }
.meta {
  color: var(--fg-dim);
  font-size: 0.88rem;
  margin-top: 8px;
}
.meta-small {
  color: var(--fg-dim);
  font-size: 0.85rem;
  margin-top: 16px;
}

/* ───── Sections ───── */
.section {
  padding: 100px 0;
}
.section-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* ───── Features grid ───── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 40px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.2s, border-color 0.2s;
}
.card:hover {
  transform: translateY(-3px);
  border-color: #2f2f38;
}
.card-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}
.card p { margin: 0; font-size: 0.95rem; }

/* ───── FAQ ───── */
details {
  border-bottom: 1px solid var(--border);
  padding: 22px 0;
}
details:first-of-type { border-top: 1px solid var(--border); }
summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--fg);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--fg-dim);
  transition: transform 0.2s;
}
details[open] summary::after { transform: rotate(45deg); }
details p {
  margin-top: 14px;
  margin-bottom: 0;
  font-size: 0.97rem;
}

/* ───── Contact ───── */
.contact-block {
  text-align: center;
}
.contact-block .btn { margin-top: 8px; }

/* ───── Footer ───── */
.footer {
  border-top: 1px solid var(--border);
  padding: 50px 0 60px;
  background: var(--bg-alt);
  text-align: center;
}
.footer-inner > div:first-child {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-icon { width: 24px; height: 24px; border-radius: 6px; }
.footer-links {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.footer-links a {
  color: var(--fg-dim);
  font-size: 0.92rem;
}
.footer-links a:hover { color: var(--fg); opacity: 1; }
.copyright {
  color: var(--fg-dim);
  font-size: 0.82rem;
  margin: 0;
}

/* ───── Reveal animation ───── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ───── Privacy page typography ───── */
.legal {
  padding: 80px 0 100px;
}
.legal h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 8px; }
.legal .updated {
  color: var(--fg-dim);
  font-size: 0.9rem;
  margin-bottom: 40px;
}
.legal h2 {
  font-size: 1.4rem;
  margin-top: 40px;
  margin-bottom: 12px;
}
.legal p, .legal li {
  color: var(--fg-dim);
  font-size: 1rem;
}
.legal ul { padding-left: 20px; }
.legal li { margin-bottom: 8px; }
.legal a { color: var(--accent); }

/* ───── Mobile ───── */
@media (max-width: 720px) {
  .nav-links { gap: 18px; }
  .nav-links a { font-size: 0.85rem; }
  .hero { padding: 70px 20px 80px; }
  .hero-icon { width: 80px; height: 80px; }
  .section { padding: 70px 0; }
  .grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .nav-links { display: none; }
  body { font-size: 16px; }
}