:root {
  --primary-color: #0066cc;
  --secondary-color: #00aaff;
  --dark-color: #1a1a2e;
  --light-color: #f8f9fa;
  --text-dark: #2c3e50;
  --text-light: #6c757d;
  --border-color: #e1e8ed;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --danger-color: #dc3545;
  --gradient-primary: linear-gradient(135deg, #0066cc 0%, #00aaff 100%);
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 6px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-size: 16px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn-outline {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  background: transparent;
}

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

header {
  background: white;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

header.scrolled {
  box-shadow: var(--shadow-md);
}

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

.logo {
  font-size: 28px;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 30px;
  align-items: center;
}

nav ul li a {
  font-weight: 500;
  color: var(--text-dark);
  padding: 8px 0;
  position: relative;
}

nav ul li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width 0.3s ease;
}

nav ul li a:hover::after,
nav ul li a.active::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--primary-color);
  border-radius: 3px;
  transition: var(--transition);
}

.hero {
  background: var(--gradient-primary);
  color: white;
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="40" fill="rgba(255,255,255,0.05)"/></svg>');
  opacity: 0.3;
  animation: float 20s infinite linear;
}

@keyframes float {
  0% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-20px) translateX(10px); }
  100% { transform: translateY(0) translateX(0); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.hero p {
  font-size: 20px;
  margin-bottom: 30px;
  opacity: 0.95;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 36px;
  color: var(--text-dark);
  margin-bottom: 15px;
  font-weight: 700;
}

.section-header p {
  font-size: 18px;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.feature-card {
  background: white;
  padding: 35px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: white;
  font-size: 28px;
}

.feature-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.7;
}

.stats-section {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  color: white;
  padding: 80px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  text-align: center;
}

.stat-item h3 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 10px;
  background: linear-gradient(135deg, #00aaff 0%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item p {
  font-size: 18px;
  opacity: 0.9;
}

.content-section {
  background: var(--light-color);
}

.content-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.content-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.content-text h2 {
  font-size: 36px;
  margin-bottom: 20px;
  color: var(--text-dark);
}

.content-text p {
  font-size: 17px;
  color: var(--text-light);
  margin-bottom: 15px;
  line-height: 1.8;
}

.content-text ul {
  list-style: none;
  margin: 25px 0;
}

.content-text ul li {
  padding: 12px 0;
  padding-left: 30px;
  position: relative;
  color: var(--text-light);
  line-height: 1.6;
}

.content-text ul li::before {
  content: '\f00c';
  font-family: 'Font Awesome 5 Free';
  font-weight: 900;
  position: absolute;
  left: 0;
  color: var(--success-color);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 30px;
}

.blog-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.blog-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
  position: relative;
}

.blog-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.blog-card:hover .blog-image img {
  transform: scale(1.05);
}

.blog-content {
  padding: 25px;
}

.blog-meta {
  display: flex;
  gap: 15px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--text-light);
}

.blog-content h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--text-dark);
  line-height: 1.4;
}

.blog-content p {
  color: var(--text-light);
  margin-bottom: 15px;
  line-height: 1.6;
}

.read-more {
  color: var(--primary-color);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.read-more:hover {
  gap: 10px;
}

.cta-section {
  background: var(--gradient-primary);
  color: white;
  padding: 80px 0;
  text-align: center;
}

.cta-section h2 {
  font-size: 40px;
  margin-bottom: 20px;
}

.cta-section p {
  font-size: 20px;
  margin-bottom: 30px;
  opacity: 0.95;
}

.btn-white {
  background: white;
  color: var(--primary-color);
  font-weight: 600;
}

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

.faq-container {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  margin-bottom: 15px;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.faq-question {
  padding: 20px 25px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--text-dark);
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--light-color);
}

.faq-icon {
  font-size: 20px;
  color: var(--primary-color);
  transition: var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-content {
  padding: 0 25px 20px;
  color: var(--text-light);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info h3 {
  font-size: 28px;
  margin-bottom: 20px;
  color: var(--text-dark);
}

.contact-info p {
  color: var(--text-light);
  margin-bottom: 30px;
  line-height: 1.7;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 25px;
}

.contact-icon {
  width: 45px;
  height: 45px;
  background: var(--gradient-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: 18px;
  margin-bottom: 5px;
  color: var(--text-dark);
}

.contact-details p {
  color: var(--text-light);
  margin: 0;
}

.map-container {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 400px;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

footer {
  background: var(--dark-color);
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h3 {
  font-size: 20px;
  margin-bottom: 20px;
  color: white;
}

.footer-section p {
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  margin-bottom: 15px;
}

.footer-section ul {
  list-style: none;
}

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

.footer-section ul li a {
  color: rgba(255,255,255,0.7);
  transition: var(--transition);
}

.footer-section ul li a:hover {
  color: var(--secondary-color);
  padding-left: 5px;
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 15px;
}

.social-icon {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 25px;
  text-align: center;
  color: rgba(255,255,255,0.6);
}

.breadcrumb {
  padding: 20px 0;
  background: var(--light-color);
}

.breadcrumb-list {
  list-style: none;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.breadcrumb-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-light);
}

.breadcrumb-list li:not(:last-child)::after {
  content: '\f054';
  font-family: 'Font Awesome 5 Free';
  font-weight: 900;
  font-size: 12px;
}

.breadcrumb-list li a {
  color: var(--primary-color);
}

.page-header {
  background: var(--gradient-primary);
  color: white;
  padding: 60px 0;
  text-align: center;
}

.page-header h1 {
  font-size: 42px;
  margin-bottom: 15px;
}

.page-header p {
  font-size: 18px;
  opacity: 0.95;
}

.article-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 20px;
}

.article-header {
  margin-bottom: 40px;
}

.article-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  color: var(--text-light);
  margin-bottom: 20px;
  font-size: 15px;
}

.article-content h1 {
  font-size: 38px;
  color: var(--text-dark);
  margin-bottom: 25px;
  line-height: 1.3;
}

.article-content h2 {
  font-size: 32px;
  color: var(--text-dark);
  margin-top: 40px;
  margin-bottom: 20px;
}

.article-content h3 {
  font-size: 26px;
  color: var(--text-dark);
  margin-top: 30px;
  margin-bottom: 15px;
}

.article-content p {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-light);
  margin-bottom: 20px;
}

.article-content ul,
.article-content ol {
  margin: 20px 0;
  padding-left: 25px;
}

.article-content li {
  margin-bottom: 12px;
  line-height: 1.7;
  color: var(--text-light);
}

.article-image {
  margin: 40px 0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.error-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}

.error-content h1 {
  font-size: 120px;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}

.error-content h2 {
  font-size: 32px;
  color: var(--text-dark);
  margin-bottom: 15px;
}

.error-content p {
  font-size: 18px;
  color: var(--text-light);
  margin-bottom: 30px;
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  nav ul {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: white;
    flex-direction: column;
    justify-content: flex-start;
    padding: 40px 20px;
    box-shadow: var(--shadow-lg);
    transition: left 0.3s ease;
    gap: 0;
  }

  nav ul.active {
    left: 0;
  }

  nav ul li {
    width: 100%;
    border-bottom: 1px solid var(--border-color);
  }

  nav ul li a {
    display: block;
    padding: 15px 0;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero p {
    font-size: 17px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .section-header h2 {
    font-size: 28px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .content-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .content-wrapper .content-image {
    order: -1;
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }

  .contact-wrapper {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .page-header h1 {
    font-size: 32px;
  }

  .article-content h1 {
    font-size: 28px;
  }

  .article-content h2 {
    font-size: 24px;
  }

  .error-content h1 {
    font-size: 80px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 26px;
  }

  .section {
    padding: 50px 0;
  }

  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }
}