:root {
  --primary: #1a2a3a;
  --secondary: #2c3e50;
  --accent: #3498db;
  --text-main: #333333;
  --text-muted: #666666;
  --bg-light: #f8fafc;
  --white: #ffffff;
  --border: #e2e8f0;
}

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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  line-height: 1.7;
  color: var(--text-main);
  background-color: var(--white);
  scroll-behavior: smooth;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Navigation */
header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--accent);
}

/* Hero Section */
.hero {
  padding: 160px 0 100px;
  background: radial-gradient(circle at top right, #f1f5f9, #ffffff);
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 auto 2rem;
}

/* Section General */
.section {
  padding: 100px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title h2 {
  font-size: 2.25rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.section-title p {
  color: var(--text-muted);
}

/* Content Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  padding: 2.5rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.card h3 {
  margin-bottom: 1rem;
  color: var(--secondary);
}

/* Info Box */
.info-box {
  background: var(--bg-light);
  border-left: 4px solid var(--accent);
  padding: 2rem;
  margin: 2rem 0;
  border-radius: 0 8px 8px 0;
}

/* Footer */
footer {
  background: var(--primary);
  color: #94a3b8;
  padding: 60px 0 30px;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 3rem;
  margin-bottom: 40px;
}

.footer-brand {
  max-width: 400px;
}

.footer-links h4 {
  color: var(--white);
  margin-bottom: 1.5rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.9rem;
}

.footer-bottom {
  border-top: 1px solid #334155;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  .nav-links {
    display: none;
  }
}