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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  line-height: 1.6;
}

/* Header Styles */
header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
}

header h1 {
  font-size: 24px;
  font-weight: 600;
}

nav {
  display: flex;
  gap: 20px;
  align-items: center;
}

nav a {
  color: white;
  text-decoration: none;
  padding: 8px 15px;
  border-radius: 5px;
  transition: all 0.3s ease;
  font-weight: 500;
}

nav a:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

nav a.active {
  background: rgba(255, 255, 255, 0.3);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.9) 0%, rgba(118, 75, 162, 0.9) 100%),
              url('../images/banner.jpg') center/cover no-repeat;
  color: white;
  text-align: center;
  padding: 120px 20px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.hero-text {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  display: inline-block;
  padding: 50px;
  border-radius: 20px;
  position: relative;
  z-index: 1;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
  animation: fadeIn 1s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-text h2 {
  font-size: 48px;
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-text p {
  font-size: 20px;
  margin-bottom: 30px;
  opacity: 0.9;
}

.btn {
  display: inline-block;
  background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
  color: white;
  padding: 15px 40px;
  border-radius: 50px;
  text-decoration: none;
  font-size: 18px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(40, 167, 69, 0.3);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(40, 167, 69, 0.5);
}

/* Features Section */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 60px auto;
  padding: 0 20px;
}

.feature {
  background: white;
  padding: 40px 30px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.feature:hover::before {
  transform: scaleX(1);
}

.feature:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.feature-icon {
  font-size: 60px;
  margin-bottom: 20px;
  display: inline-block;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.feature h3 {
  font-size: 24px;
  color: #333;
  margin-bottom: 15px;
  font-weight: 600;
}

.feature p {
  font-size: 16px;
  color: #666;
  line-height: 1.8;
}

/* Footer */
footer {
  background: rgba(0, 0, 0, 0.3);
  color: white;
  text-align: center;
  padding: 25px;
  margin-top: 80px;
  backdrop-filter: blur(10px);
}

footer p {
  font-size: 16px;
  opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 15px;
  }
  
  nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }
  
  .hero-text {
    padding: 30px;
  }
  
  .hero-text h2 {
    font-size: 32px;
  }
  
  .hero-text p {
    font-size: 16px;
  }
  
  .features {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 80px 20px;
  }
  
  .hero-text h2 {
    font-size: 28px;
  }
  
  .btn {
    padding: 12px 30px;
    font-size: 16px;
  }
}