* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, -apple-system, Segoe UI, sans-serif;
}

body {
  color: #1e293b;
  background: #ffffff;
  line-height: 1.6;
}

/* UTILITIES */
.container {
  max-width: 1200px;
  margin: auto;
  padding: 0 1rem;
}

.section {
  padding: 4rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2rem;
}

.section-title.light {
  color: #fff;
}

a {
  text-decoration: none;
  color: inherit;
}

/* BUTTONS */
.btn-primary {
  background: #2563eb;
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  display: inline-block;
}

.btn-primary:hover {
  background: #1d4ed8;
}

.btn-outline {
  border: 2px solid #2563eb;
  color: #2563eb;
  padding: 0.7rem 1.5rem;
  border-radius: 6px;
}

/* HEADER */
.site-header {
  background: #0f172a;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.brand {
  color: #fff;
  font-weight: 700;
  font-size: 1.2rem;
}

.nav-menu {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-menu a {
  color: #cbd5f5;
}

.nav-menu a.active,
.nav-menu a:hover {
  color: #fff;
}

.nav-toggle {
  display: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}