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

:root {
  --primary-color: #0066cc;
  --secondary-color: #00a3ff;
  --dark-bg: #0a1929;
  --light-bg: #f8fafc;
  --text-dark: #1e293b;
  --text-light: #64748b;
  --white: #ffffff;
  --border-color: #e2e8f0;
  --card-bg: #ffffff;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 20px;
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

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

.nav-menu a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.3s;
}

.nav-menu a:hover {
  color: var(--primary-color);
}

.hero {
  background: linear-gradient(135deg, #0a1929 0%, #1e3a5f 100%);
  color: var(--white);
  padding: 150px 0 100px;
  margin-top: 60px;
  text-align: center;
}

.hero-content h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  color: #cbd5e1;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
  border: 2px solid transparent;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: transparent;
  color: var(--white);
  border-color: var(--white);
}

.btn-secondary:hover {
  background-color: var(--white);
  color: var(--primary-color);
}

section {
  padding: 80px 0;
}

.footer {
  background-color: var(--dark-bg);
  color: var(--white);
  padding: 3rem 0 1.5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--white);
}

.footer-brand p {
  color: #94a3b8;
}

.footer-links h4,
.footer-services h4 {
  font-size: 1.125rem;
  margin-bottom: 1rem;
  color: var(--white);
}

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

.footer-links li,
.footer-services li {
  margin-bottom: 0.5rem;
}

.footer-links a,
.footer-services a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-links a:hover,
.footer-services a:hover {
  color: var(--secondary-color);
}

.footer-bottom {
  border-top: 1px solid #1e3a5f;
  padding-top: 1.5rem;
  text-align: center;
  color: #94a3b8;
}

@media (max-width: 768px) {
  .nav-menu {
    gap: 1rem;
    font-size: 0.9rem;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .nav-menu {
    display: none;
  }

  .hero-content h1 {
    font-size: 1.75rem;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }
}