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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: #0b0c10;
  color: #f5f5f5;
  line-height: 1.6;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */

.site-header {
  background: rgba(5, 5, 10, 0.9);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.5rem;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
}

.nav a {
  margin-left: 1.5rem;
  font-size: 0.95rem;
  opacity: 0.8;
}

.nav a:hover {
  opacity: 1;
}

/* Hero */

.hero {
  min-height: 60vh;
  display: flex;
  align-items: center;
  background: radial-gradient(circle at top left, #246af4, #0b0c10 55%);
}

.hero-content {
  padding: 3rem 1.5rem;
}

.hero h2 {
  font-size: 2.3rem;
  margin-bottom: 1rem;
}

.hero p {
  max-width: 550px;
  margin-bottom: 1.5rem;
  opacity: 0.9;
}

.btn-primary {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #246af4, #3b82f6);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
}

/* Sections */

.section {
  padding: 3rem 0;
}

.section-alt {
  background: #111318;
}

.section h3 {
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
}

/* Cards */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
}

.card {
  background: #141824;
  border-radius: 0.75rem;
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.card h4 {
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

/* Contact */

.email {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0.5rem 0 1rem;
  color: #60a5fa;
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1rem 0;
  font-size: 0.85rem;
  text-align: center;
  background: #05060a;
}

/* Responsive */

@media (max-width: 640px) {
  .site-header .container {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    margin-top: 0.5rem;
  }

  .hero h2 {
    font-size: 1.8rem;
  }
}