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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, Helvetica, Arial, sans-serif;
  color: #0f172a;
  background: #ffffff;
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Navigation ===== */
.nav {
  border-bottom: 1px solid #e5e7eb;
  background: #fff;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.logo {
  font-weight: 700;
  font-size: 20px;
}

nav a {
  margin-left: 24px;
  text-decoration: none;
  color: #334155;
  font-size: 15px;
}

/* ===== Hero ===== */
.hero {
  padding: 96px 0;
  background: linear-gradient(180deg, #f8fafc, #ffffff);
}

.hero h1 {
  font-size: 48px;
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero p {
  font-size: 18px;
  color: #475569;
  max-width: 600px;
}

.actions {
  margin-top: 32px;
}

.btn {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 15px;
  margin-right: 12px;
}

.primary {
  background: #0f172a;
  color: #fff;
}

.secondary {
  border: 1px solid #cbd5f5;
  color: #0f172a;
}

/* ===== Features ===== */
.features {
  padding: 80px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 24px;
}

.card h3 {
  margin-bottom: 8px;
}

/* ===== Docs ===== */
.docs {
  background: #f8fafc;
  padding: 64px 0;
}

.docs ul {
  margin-top: 16px;
}

.docs li {
  margin-bottom: 8px;
  color: #334155;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid #e5e7eb;
  padding: 32px 0;
  font-size: 14px;
  color: #64748b;
}