/* Global Styles */
:root {
  --primary-color: #1e90ff;
  --secondary-color: #32cd32;
  --dark-color: #333;
  --light-color: #f5f5f5;
  --text-color: #333;
  --white: #fff;
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: #f9f9f9;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--secondary-color);
}

/* Header */
header {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--white);
  padding: 2rem 0;
  position: relative;
  overflow: hidden;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
}

/* Navigation */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  background-color: var(--white);
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
}

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

.nav-links a {
  color: var(--dark-color);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

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

.nav-links a.active {
  color: var(--primary-color);
  font-weight: bold;
}

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

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/hero-bg.jpg') no-repeat center center/cover;
  color: var(--white);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

/* Navigation */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  background-color: var(--white);
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
}

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

.nav-links a {
  color: var(--dark-color);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

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

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/hero-bg.jpg') no-repeat center center/cover;
  color: var(--white);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

/* Main Content */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2rem;
}

.main-content {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  min-height: 300px;
}

/* Section layout for image-free design */
.section-img {
  display: none;
}

section[id] {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

section[id] > * {
  max-width: 700px;
}

/* Blog Posts */
.blog-posts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
  align-items: stretch;
}

.post-card {
  border: 1px solid #e3eaf7;
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
  background: linear-gradient(90deg, #f7fafd 0%, #fff 100%);
  box-shadow: 0 2px 8px rgba(30,144,255,0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 180px;
  justify-content: center;
}

.post-card:hover, .post-card:focus-within {
  transform: translateY(-7px) scale(1.015);
  box-shadow: 0 8px 24px rgba(30,144,255,0.13);
  border-color: var(--primary-color);
}

.post-image {
  display: none;
  object-fit: cover;
}

.post-content {
  padding: 1.5rem;
}

.post-meta {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 0.5rem;
}

.post-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--dark-color);
}

.post-excerpt {
  color: #666;
  margin-bottom: 1rem;
}

.read-more {
  display: inline-block;
  color: var(--primary-color);
  font-weight: 500;
}

/* Sidebar */
.sidebar {
  background: var(--white);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  height: fit-content;
}

.sidebar-widget {
  margin-bottom: 2rem;
  background: #f7fafd;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(30,144,255,0.04);
  padding: 1.2rem 1rem;
}

.sidebar-widget:last-child {
  margin-bottom: 0;
}

.sidebar-widget h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--light-color);
}

/* Footer */
footer {
  background-color: var(--dark-color);
  color: var(--white);
  padding: 3rem 0;
  margin-top: 3rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.footer-widget h3 {
  color: var(--white);
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-widget h3::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 50px;
  height: 2px;
  background-color: var(--primary-color);
}

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

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a {
  color: #bbb;
  transition: var(--transition);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.footer-links a:focus {
  outline: 2px dashed var(--primary-color);
  outline-offset: 2px;
  color: var(--primary-color);
  background: rgba(30,144,255,0.08);
}

.footer-links a:hover {
  color: var(--white);
  padding-left: 5px;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255,255,255,0.1);
  border-radius: 50%;
  color: var(--white);
  transition: var(--transition);
}

.social-links a:hover {
  background-color: var(--primary-color);
  transform: translateY(-3px);
}

.copyright {
  text-align: center;
  padding-top: 2rem;
  margin-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: #bbb;
  font-size: 0.9rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  box-shadow: 0 2px 8px rgba(30,144,255,0.08);
  letter-spacing: 0.03em;
}

.btn:focus {
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
  background: #0d8aee;
}

.btn:hover {
  background-color: #0d8aee;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--primary-color);
  color: var(--primary-color);
}

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

/* Responsive Design */
@media (max-width: 992px) {
  .container {
    grid-template-columns: 1fr;
    padding: 1rem;
  }
  
  .sidebar {
    margin-top: 2rem;
    max-width: 100%;
  }
  .main-content {
    padding: 1.2rem;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 2.2rem 0.5rem;
  }
  .main-content, .sidebar {
    padding: 1rem 0.5rem;
  }
  .footer-content {
    padding: 0 0.5rem;
  }
  .blog-posts {
    gap: 1rem;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 1rem;
  }
  
  .nav-container {
    flex-direction: column;
    padding: 0 1rem;
  }
  
  .nav-links {
    margin-top: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .blog-posts {
    grid-template-columns: 1fr;
  }
}

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

.animate {
  animation: fadeIn 0.6s ease-out forwards;
}