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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: #fafaf9;
  color: #1c1917;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

header {
  background: #fff;
  border-bottom: 1px solid #e7e5e4;
  padding: 0 24px;
}

header .inner {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  height: 56px;
}

header .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

header .logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: block;
}

header .logo-name {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: #1c1917;
}

main {
  max-width: 680px;
  margin: 0 auto 80px;
  padding: 0 24px;
}

/* Hero (homepage only) */
.hero {
  text-align: center;
  padding: 64px 0 32px;
}

.hero-icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  display: block;
  margin: 0 auto 20px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.hero h1 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.8px;
  margin-bottom: 8px;
}

.hero .tagline {
  font-size: 16px;
  color: #78716c;
  margin-bottom: 14px;
}

.hero .platform {
  display: inline-block;
  background: #f5f5f4;
  color: #78716c;
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: 0.2px;
}

.page-nav {
  text-align: center;
  padding-bottom: 80px;
  font-size: 14px;
  color: #a8a29e;
}

.page-nav .sep {
  margin: 0 8px;
  color: #d6d3d1;
}

h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
  color: #1c1917;
}

.meta {
  font-size: 13px;
  color: #78716c;
  margin-bottom: 36px;
}

h2 {
  font-size: 16px;
  font-weight: 600;
  margin-top: 36px;
  margin-bottom: 10px;
  color: #1c1917;
}

h3 {
  font-size: 14px;
  font-weight: 600;
  margin-top: 20px;
  margin-bottom: 6px;
  color: #44403c;
}

p { margin-bottom: 12px; }

ul {
  padding-left: 20px;
  margin-bottom: 12px;
}

li { margin-bottom: 4px; }

a { color: #d97706; text-decoration: none; }
a:hover { text-decoration: underline; }

strong { font-weight: 600; }

.callout {
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 24px;
  font-size: 14px;
  color: #78350f;
}

footer {
  text-align: center;
  padding: 24px;
  font-size: 12px;
  color: #a8a29e;
  border-top: 1px solid #e7e5e4;
}

@media (max-width: 600px) {
  h1 { font-size: 24px; }
  .hero { padding: 48px 0 24px; }
  .hero h1 { font-size: 30px; }
  .hero-icon { width: 80px; height: 80px; border-radius: 18px; }
}