/* Modern CSS Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background-color: #ffffff;
  font-size: 16px;
}

/* Modern Header */
header {
  background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

header .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

header h1 a {
  color: white;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

header h1 a::before {
  
  font-size: 1.5rem;
}

nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
}

nav a:hover {
  color: white;
  background: rgba(255,255,255,0.1);
  transform: translateY(-1px);
}

/* Mobile Navigation */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.mobile-nav-toggle:hover {
  background: rgba(255,255,255,0.1);
}

.mobile-nav-toggle .hamburger {
  width: 24px;
  height: 2px;
  background: white;
  position: relative;
  transition: all 0.3s ease;
}

.mobile-nav-toggle .hamburger::before,
.mobile-nav-toggle .hamburger::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: white;
  transition: all 0.3s ease;
}

.mobile-nav-toggle .hamburger::before {
  top: -8px;
}

.mobile-nav-toggle .hamburger::after {
  bottom: -8px;
}

.mobile-nav-toggle.active .hamburger {
  background: transparent;
}

.mobile-nav-toggle.active .hamburger::before {
  transform: rotate(45deg);
  top: 0;
}

.mobile-nav-toggle.active .hamburger::after {
  transform: rotate(-45deg);
  bottom: 0;
}

/* Hero Section with Sliding Featured Posts */
.hero-section {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  padding: 4rem 0;
  position: relative;
  overflow: hidden;
}

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

.hero-slider {
  position: relative;
  height: 400px;
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  padding: 3rem;
  color: white;
}

.slide.active {
  opacity: 1;
}

.slide-content {
  max-width: 600px;
}

.slide h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.slide p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  opacity: 0.9;
}

.slide .btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  background: rgba(255,255,255,0.2);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: 2px solid rgba(255,255,255,0.3);
}

.slide .btn:hover {
  background: rgba(255,255,255,0.3);
  transform: translateY(-2px);
}

.slider-dots {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: all 0.3s ease;
}

.dot.active {
  background: white;
  transform: scale(1.2);
}

/* Modern Container and Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

main {
  padding: 4rem 0;
}

/* Modern Cards */
.card {
  background: white;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  border: 1px solid #f1f5f9;
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
}

/* Post Cards */
.post-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  border: 1px solid #f1f5f9;
}

.post-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.post-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.post-card-content {
  padding: 1.5rem;
}

.post-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #1e293b;
}

.post-card h3 a {
  color: inherit;
  text-decoration: none;
}

.post-card h3 a:hover {
  color: #3b82f6;
}

.post-meta {
  font-size: 0.9rem;
  color: #64748b;
  margin-bottom: 1rem;
}

.post-excerpt {
  color: #475569;
  line-height: 1.6;
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Modern Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
  background: linear-gradient(135deg, #64748b, #94a3b8);
}

.btn-outline {
  background: transparent;
  border: 2px solid #3b82f6;
  color: #3b82f6;
}

.btn-outline:hover {
  background: #3b82f6;
  color: white;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  color: #1e293b;
}

h2 {
  font-size: 2rem;
  color: #1e293b;
}

h3 {
  font-size: 1.5rem;
  color: #1e293b;
}

p {
  margin-bottom: 1rem;
  color: #475569;
}

/* Section Styling */
.section {
  padding: 4rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title p {
  font-size: 1.1rem;
  color: #64748b;
  max-width: 600px;
  margin: 0 auto;
}

/* Footer */
footer {
  background: #1e293b;
  color: white;
  padding: 3rem 0;
  margin-top: 4rem;
}

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

footer h3 {
  color: white;
  margin-bottom: 1rem;
}

footer p {
  color: #cbd5e1;
}

footer a {
  color: #cbd5e1;
  text-decoration: none;
}

footer a:hover {
  color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
  /* Mobile Navigation */
  .mobile-nav-toggle {
    display: block;
  }
  
  nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    transition: left 0.3s ease;
    z-index: 999;
  }
  
  nav.active {
    left: 0;
  }
  
  nav a {
    font-size: 1.2rem;
    padding: 1rem 2rem;
    width: 100%;
    text-align: center;
  }
  
  header .container {
    flex-direction: row;
    gap: 0;
  }
  
  .hero-slider {
    height: 300px;
  }
  
  .slide {
    padding: 2rem;
  }
  
  /* fix slider */
  .slide h2 {
    font-size: 1rem;
  }
  .slide p {
    font-size: .9rem;
  }

  .slide .btn {
  display: inline-block;
  padding: 0.3rem 1rem;
  background: rgba(255,255,255,0.2);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 400;
  transition: all 0.3s ease;
  border: 2px solid rgba(255,255,255,0.3);
}

.slider-dots {
  position: absolute;
  bottom: 2rem;
  left: 60%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
}
  
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  /* Adjust header for mobile */
  header h1 {
    font-size: 1.5rem;
  }
  
  header h1 a::before {
    font-size: 1.2rem;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mb-2 {
  margin-bottom: 2rem;
}

.mt-2 {
  margin-top: 2rem;
}

.hidden {
  display: none;
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Category Tags */
.category-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  color: white;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  margin: 0.25rem;
}

.category-tag:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}