/* Global Design System */
:root {
  --primary: #3498db;
  --secondary: #2ecc71;
  --accent: #e74c3c;
  --dark: #2c3e50;
  --light: #f8f9fa;
  --glass: rgba(255, 255, 255, 0.85);
  --glass-dark: rgba(255, 255, 255, 0.1);
  --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: #333;
  line-height: 1.6;
}

/* Header Styles */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: var(--glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow);
  height: 80px;
  display: flex;
  align-items: center;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 20px;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: 12px;
}

.logo-img {
  height: 40px;
  width: 40px;
  border-radius: 8px;
}

.logo-text {
  font-size: 24px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.5px;
}

.nav-menu {
  display: flex;
  gap: 30px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--dark);
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link:after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: var(--primary);
  transition: width 0.3s ease;
}

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

.nav-link:hover:after {
  width: 100%;
}

.nav-link.active {
  color: var(--primary);
}

.nav-link.active:after {
  width: 100%;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  font-size: 28px;
  color: var(--dark);
}

/* Footer Styles */
.site-footer {
  background: var(--dark);
  color: #fff;
  padding: 60px 0 20px;
  margin-top: 60px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
}

.footer-logo {
  margin-bottom: 20px;
}

.footer-logo-text {
  color: #fff;
  font-size: 28px;
  font-weight: 800;
}

.footer-section h4 {
  font-size: 18px;
  margin-bottom: 25px;
  position: relative;
}

.footer-section h4:after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 30px;
  height: 2px;
  background: var(--primary);
}

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

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: #bdc3c7;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #fff;
  padding-left: 5px;
}

.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: #7f8c8d;
  font-size: 14px;
}

html {
  scroll-behavior: smooth;
}

/* Responsive Design */
@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
    z-index: 1001;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 40px;
    transition: all 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0);
    box-shadow: 20px 0 50px rgba(0, 0, 0, 0.1);
    z-index: 1000;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-menu li {
    margin-bottom: 30px;
  }

  .nav-link {
    font-size: 20px;
  }

  .site-header {
    height: 70px;
  }

  .nav-container {
    height: 100%;
  }
}