:root {
  --bg: #000000;
  --card: #1C1C1E;
  --secondary: #2C2C2E;
  --text: #FFFFFF;
  --muted: #8E8E93;
  --border: #38383A;
  --blue: #007AFF;
  --purple: #5856D6;
  --grad: linear-gradient(90deg, #007AFF 0%, #5856D6 100%);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.wrap { max-width: 760px; margin: 0 auto; padding: 0 24px; }

/* Header / nav */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; max-width: 1000px; margin: 0 auto;
}
.nav .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; color: var(--text); }
.nav .brand .dot {
  width: 22px; height: 22px; border-radius: 6px; background: var(--grad);
  display: inline-block;
}
.nav .links a { color: var(--muted); margin-left: 22px; font-size: 15px; }
.nav .links a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero { text-align: center; padding: 72px 24px 56px; }
.hero .icon {
  width: 96px; height: 96px; border-radius: 22px; margin: 0 auto 28px;
  background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 12px 40px rgba(88,86,214,0.35);
}
.hero .icon svg { width: 52px; height: 52px; }
.hero h1 {
  font-size: 44px; font-weight: 800; letter-spacing: -0.02em; line-height: 1.1;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero .tagline { font-size: 21px; color: var(--muted); margin-top: 14px; }
.hero p.lead { font-size: 17px; color: #C7C7CC; max-width: 560px; margin: 22px auto 0; }

/* Feature grid */
.features { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 48px 0; }
.feature {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 20px;
}
.feature h3 { font-size: 16px; margin-bottom: 6px; }
.feature p { font-size: 14px; color: var(--muted); }

/* Generic content pages */
.page { padding: 56px 0 40px; }
.page h1 { font-size: 32px; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 8px; }
.page .updated { color: var(--muted); font-size: 14px; margin-bottom: 32px; }
.page h2 { font-size: 20px; margin: 32px 0 10px; }
.page p, .page li { color: #D1D1D6; font-size: 16px; margin-bottom: 12px; }
.page ul { padding-left: 22px; }
.page li { margin-bottom: 8px; }
.callout {
  background: var(--card); border: 1px solid var(--border);
  border-left: 3px solid var(--blue); border-radius: 10px;
  padding: 16px 18px; margin: 20px 0; color: #D1D1D6; font-size: 15px;
}

/* Buttons */
.btn {
  display: inline-block; background: var(--grad); color: #fff;
  padding: 13px 26px; border-radius: 12px; font-weight: 600; font-size: 16px;
  margin-top: 28px;
}
.btn:hover { text-decoration: none; opacity: 0.92; }
.btn.ghost { background: var(--secondary); }

/* Footer */
footer {
  border-top: 1px solid var(--border); margin-top: 64px;
  padding: 32px 24px; text-align: center; color: var(--muted); font-size: 14px;
}
footer a { color: var(--muted); margin: 0 12px; }
footer a:hover { color: var(--text); text-decoration: none; }
footer .copy { margin-top: 16px; font-size: 13px; }

@media (max-width: 600px) {
  .hero h1 { font-size: 34px; }
  .hero .tagline { font-size: 18px; }
  .features { grid-template-columns: 1fr; }
  .nav .links a { margin-left: 16px; }
}