:root {
  --bg-start: #1a1a2e;
  --bg-end: #0a0a0a;
  --fg: #ffffff;
  --fg-muted: #9a9aa5;
  --fg-subtle: #6b6b76;
  --accent: #ffffff;
  --accent-fg: #000000;
  --border: rgba(255, 255, 255, 0.08);
  --card: rgba(255, 255, 255, 0.03);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(ellipse at top, var(--bg-start) 0%, var(--bg-end) 60%);
  background-attachment: fixed;
  color: var(--fg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

a {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.25);
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-color: rgba(255, 255, 255, 0.7);
}

/* ---------- Landing (hero) ---------- */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem 6rem;
}

.hero-inner {
  text-align: center;
  max-width: 420px;
  width: 100%;
}

.hero-inner .app-link {
  display: inline-block;
  text-decoration: none;
  transition: transform 0.15s ease;
}

.hero-inner .app-link:active { transform: scale(0.94); }

.hero-inner .icon {
  width: 180px;
  height: 180px;
  border-radius: 40px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
}

.hero-inner h1 {
  font-size: 2.25rem;
  margin: 1.75rem 0 0.5rem;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.hero-inner .tagline {
  color: var(--fg-muted);
  margin: 0 0 2rem;
  font-size: 1.05rem;
}

.cta {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-fg);
  padding: 1rem 2.25rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  font-size: 1rem;
  transition: transform 0.15s ease;
}

.cta:active { transform: scale(0.96); }

.store-badges {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--fg);
  text-decoration: none;
  font-size: 0.9rem;
  background: var(--card);
}

.store-badge:hover { border-color: rgba(255,255,255,0.25); }

.store-badge small {
  display: block;
  font-size: 0.65rem;
  color: var(--fg-muted);
  line-height: 1;
  margin-bottom: 2px;
}

/* ---------- Content page ---------- */

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}

.page-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
  margin-bottom: 2.5rem;
}

.page-header .brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--fg);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.page-header .brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.page h1 {
  font-size: 2rem;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
  font-weight: 700;
}

.page .last-updated {
  color: var(--fg-subtle);
  font-size: 0.85rem;
  margin: 0;
}

.page h2 {
  font-size: 1.25rem;
  margin: 2.5rem 0 0.75rem;
  letter-spacing: -0.01em;
  font-weight: 600;
}

.page h3 {
  font-size: 1rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--fg);
  font-weight: 600;
}

.page p, .page li {
  color: #d5d5dd;
  font-size: 1rem;
}

.page ul, .page ol { padding-left: 1.25rem; }

.page code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.85em;
}

.callout {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  color: var(--fg-muted);
  font-size: 0.95rem;
}

.callout strong { color: var(--fg); }

.footer {
  border-top: 1px solid var(--border);
  margin-top: 4rem;
  padding-top: 1.5rem;
  color: var(--fg-subtle);
  font-size: 0.85rem;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer a {
  color: var(--fg-muted);
  text-decoration: none;
}

.footer a:hover { color: var(--fg); }

/* ---------- Small screens ---------- */

@media (max-width: 480px) {
  .hero-inner .icon { width: 140px; height: 140px; border-radius: 32px; }
  .hero-inner h1 { font-size: 1.85rem; }
  .page { padding: 2.5rem 1.25rem 4rem; }
  .page h1 { font-size: 1.65rem; }
}