:root {
  --bg: #0b0c10;
  --bg-alt: #111319;
  --card: #161922;
  --text: #f5f6fa;
  --muted: #9aa3b2;
  --accent: #0a84ff; /* iOS system blue */
  --accent-2: #5e5ce6;
  --radius: 16px;
  --maxw: 1040px;
}

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

html { 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;
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(180%) blur(20px);
  background: rgba(11, 12, 16, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-weight: 700; font-size: 20px; color: var(--text); text-decoration: none; letter-spacing: -0.02em; }
.nav__links a { color: var(--muted); text-decoration: none; margin-left: 28px; font-size: 15px; transition: color .2s; }
.nav__links a:hover { color: var(--text); }
@media (max-width: 560px) { .nav__links a { margin-left: 16px; font-size: 14px; } }

/* Hero */
.hero { padding: 120px 0 100px; text-align: center; background:
  radial-gradient(900px 400px at 50% -10%, rgba(10,132,255,0.18), transparent 70%); }
.eyebrow { color: var(--accent); font-weight: 600; text-transform: uppercase; letter-spacing: .12em; font-size: 13px; margin-bottom: 16px; }
.hero h1 { font-size: clamp(40px, 7vw, 72px); line-height: 1.05; letter-spacing: -0.03em; font-weight: 800; }
.lead { color: var(--muted); font-size: clamp(17px, 2.2vw, 20px); max-width: 620px; margin: 24px auto 0; }
.cta { display: flex; gap: 14px; justify-content: center; margin-top: 36px; flex-wrap: wrap; }

/* Buttons */
.btn { display: inline-block; padding: 14px 26px; border-radius: 999px; font-weight: 600; font-size: 16px; text-decoration: none; transition: transform .15s, opacity .2s; }
.btn:active { transform: scale(0.97); }
.btn--primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; }
.btn--primary:hover { opacity: .92; }
.btn--ghost { color: var(--text); border: 1px solid rgba(255,255,255,0.18); }
.btn--ghost:hover { border-color: rgba(255,255,255,0.4); }

/* Sections */
.section { padding: 88px 0; }
.section--alt { background: var(--bg-alt); }
.section h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.02em; margin-bottom: 40px; text-align: center; }

/* Grid */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.card { background: var(--card); border: 1px solid rgba(255,255,255,0.06); border-radius: var(--radius); padding: 28px; transition: transform .2s, border-color .2s; }
.card:hover { transform: translateY(-4px); border-color: rgba(10,132,255,0.5); }
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15px; }

/* Steps */
.steps { list-style: none; display: grid; gap: 24px; max-width: 720px; margin: 0 auto; }
.steps li { display: flex; gap: 20px; align-items: flex-start; }
.steps span { flex: 0 0 44px; height: 44px; width: 44px; display: grid; place-items: center; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); font-weight: 700; }
.steps h3 { font-size: 18px; }
.steps p { color: var(--muted); font-size: 15px; }

/* Contact */
.contact { text-align: center; }
.contact .lead { margin-bottom: 28px; }

/* Footer */
.footer { border-top: 1px solid rgba(255,255,255,0.06); padding: 28px 0; }
.footer__inner { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: var(--muted); font-size: 14px; }