:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #6e6e73;
  --accent: #0071e3;
  --gray: #f5f5f7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
}

/* NAV */
.nav {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #eee;
}

.nav-container {
  max-width: 1100px;
  margin: auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
}

.logo {
  font-weight: 600;
  font-size: 20px;
}

nav a {
  margin-left: 24px;
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
}

nav a:hover {
  color: var(--text);
}

/* HERO */
.hero {
  max-width: 900px;
  margin: 140px auto;
  text-align: center;
  padding: 0 24px;
}

.hero h1 {
  font-size: 56px;
  font-weight: 600;
  letter-spacing: -1px;
}

.hero p {
  font-size: 18px;
  color: var(--muted);
  margin-top: 20px;
}

.cta {
  display: inline-block;
  margin-top: 32px;
  padding: 12px 30px;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  font-weight: 500;
}

.cta.dark {
  background: #111;
}

/* SECTIONS */
.section {
  max-width: 1100px;
  margin: 120px auto;
  padding: 0 24px;
  text-align: center;
}

.section h2 {
  font-size: 36px;
  margin-bottom: 40px;
}

.gray {
  background: var(--gray);
  padding: 120px 24px;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.card {
  background: white;
  padding: 32px;
  border-radius: 18px;
  text-align: left;
  box-shadow: 0 12px 30px rgba(0,0,0,0.05);
}

.card h3 {
  margin-top: 0;
}

/* PROCESS */
.steps {
  max-width: 600px;
  margin: auto;
}

.step {
  background: white;
  margin: 16px 0;
  padding: 20px;
  border-radius: 14px;
  font-weight: 500;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 48px 24px;
  color: var(--muted);
  font-size: 14px;
}