/* Import modern fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap');

/* Global Styles */
* {
  box-sizing: border-box;
}

html {
  scroll-padding-top: 80px;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0f0f0f 100%);
  color: #e8e6e3;
  scroll-behavior: smooth;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

h1, h2, h3 {
  margin: 0 0 24px;
  font-weight: 300;
  color: #ffffff;
  line-height: 1.2;
}

p {
  margin: 0 0 20px;
  color: #d1cfc8;
}

a {
  text-decoration: none;
  color: #60a5fa;
  transition: color 0.3s ease;
}

a:hover {
  color: #93c5fd;
}

/* Navigation */
.top-nav {
  background: rgba(15, 15, 15, 0.6);
  backdrop-filter: blur(10px);
  padding: 16px 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-nav .logo {
  display: flex;
  align-items: center;
  color: inherit;
}

.top-nav .logo img {
  width: 40px;
  margin-right: 10px;
}

.top-nav .logo .company-name {
  font-size: 1.5em;
  color: #ffffff;
  font-weight: 300;
}

.top-nav nav {
  display: flex;
  gap: 32px;
}

.top-nav nav a {
  color: #d1cfc8;
  font-weight: 500;
  font-size: 15px;
  padding: 8px 0;
  position: relative;
}

.top-nav nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: #60a5fa;
  transition: width 0.3s ease;
}

.top-nav nav a:hover {
  color: #ffffff;
}

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

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 4px;
}

.hamburger .line {
  width: 25px;
  height: 2px;
  background-color: #ffffff;
  margin: 3px 0;
  transition: 0.3s;
  border-radius: 1px;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
}

/* Sections */
section {
  padding: 80px 32px;
  position: relative;
}

section h2 {
  text-align: center;
  font-size: 3rem;
  margin-bottom: 60px;
  font-weight: 300;
  background: linear-gradient(135deg, #ffffff 0%, #d1cfc8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

section h2::after {
  content: '';
  position: absolute;
  bottom: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, #60a5fa, #93c5fd);
  border-radius: 2px;
}

/* Buttons */
.cta-btn {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  color: #ffffff;
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
  text-decoration: none;
  display: inline-block;
}

.cta-btn:hover {
  background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(59, 130, 246, 0.4);
  color: #ffffff;
}

.cta-btn.secondary {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

.cta-btn.secondary:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  box-shadow: 0 8px 30px rgba(16, 185, 129, 0.4);
}

.course-interest-btn {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  border: none;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.course-interest-btn:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  transform: translateY(-2px);
}

/* Cards */
.card {
  background: linear-gradient(135deg, rgba(30, 30, 30, 0.9) 0%, rgba(40, 40, 40, 0.7) 100%);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  border-color: rgba(96, 165, 250, 0.3);
}

.card.small:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.2);
}

/* Grid layouts */
.grid {
  display: grid;
  gap: 32px;
}

.grid.two-col {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid.three-col {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid.single-col {
  grid-template-columns: 1fr;
  max-width: 900px;
  margin: 0 auto;
}

/* Background sections */
.bg-primary {
  background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 50%, #141414 100%);
}

.bg-secondary {
  background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 50%, #1f1f1f 100%);
}

/* Notifications */
.notification {
  position: fixed;
  top: 100px;
  right: 20px;
  max-width: 400px;
  background: rgba(30, 30, 30, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  backdrop-filter: blur(20px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  z-index: 10000;
  animation: slideInRight 0.4s ease;
}

.notification-success {
  border-left: 4px solid #10b981;
}

.notification-content {
  display: flex;
  align-items: flex-start;
  padding: 20px;
  gap: 16px;
}

.notification-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 16px;
  flex-shrink: 0;
}

.notification-text {
  flex: 1;
  min-width: 0;
}

.notification-title {
  font-weight: 600;
  color: #ffffff;
  font-size: 16px;
  margin-bottom: 4px;
}

.notification-message {
  color: #d1cfc8;
  font-size: 14px;
  line-height: 1.5;
}

.notification-close {
  background: none;
  border: none;
  color: #888;
  font-size: 20px;
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.notification-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Footer */
footer {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
  color: #888;
  text-align: center;
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* Mobile Styles */
@media (max-width: 768px) {
  body {
    touch-action: pan-y;
  }
  
  section {
    padding: 60px 20px;
  }
  
  section h2 {
    font-size: 2.5rem;
    margin-bottom: 40px;
  }
  
  .top-nav {
    padding: 16px 20px;
    backdrop-filter: blur(10px);
  }
  
  .top-nav nav {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: rgba(15, 15, 15, 0.95);
    backdrop-filter: blur(15px);
    flex-direction: column;
    align-items: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 999;
    transition: all 0.2s ease;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
  }
  
  .top-nav nav.active {
    display: flex;
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  
  .top-nav nav a {
    margin: 12px 0;
    font-size: 18px;
  }
  
  .hamburger {
    display: flex;
  }
  
  .grid.two-col,
  .grid.three-col {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .cta-btn {
    padding: 14px 28px;
    font-size: 15px;
  }
  
  .notification {
    top: 80px;
    right: 10px;
    left: 10px;
    max-width: none;
  }
}

/* Testimonials Section */
.testimonials-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.testimonial-item {
  padding: 32px;
  border-radius: 16px;
  position: relative;
}

.testimonial-item::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 24px;
  font-size: 4rem;
  color: #60a5fa;
  opacity: 0.3;
  font-family: serif;
}

.testimonial-item p {
  font-style: italic;
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.testimonial-item span {
  font-weight: 600;
  color: #ffffff;
  font-size: 0.95rem;
}