/* ===================================
   AI InnovLab - Modern CSS Styles
   =================================== */

/* CSS Variables */
:root {
  --primary-color: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  --secondary-color: #1e293b;
  --accent-color: #06b6d4;
  --text-dark: #0f172a;
  --text-light: #64748b;
  --text-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --border-color: #e2e8f0;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
}

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

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

a:hover {
  color: var(--primary-dark);
}

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

h1 {
  font-size: 3rem;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 2rem;
}

h4 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-light);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Navigation */
header {
  background: var(--bg-white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--secondary-color);
}

.logo img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

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

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
  pointer-events: none;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-dark);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-dark) 100%);
  color: var(--text-white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../img/img_2100a122.jpg') center/cover no-repeat;
  opacity: 0.2;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  animation: fadeInUp 1s ease-out;
}

.hero h1 {
  color: var(--text-white);
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
}

.hero p {
  color: var(--bg-light);
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

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

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-size: 1rem;
}

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

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

.btn-secondary {
  background: transparent;
  color: var(--text-white);
  border: 2px solid var(--text-white);
}

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

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

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

/* Section Styles */
section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.125rem;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-card {
  background: var(--bg-white);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  border: 1px solid var(--border-color);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  border-radius: 1rem 1rem 0 0;
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--text-white);
  margin-bottom: 1.5rem;
}

.service-card h3 {
  margin-bottom: 1rem;
  color: var(--secondary-color);
}

.service-card p {
  margin-bottom: 1.5rem;
}

/* Team Grid */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.team-member {
  text-align: center;
  background: var(--bg-white);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.team-member img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1.5rem;
  border: 4px solid var(--primary-light);
}

.team-member h4 {
  margin-bottom: 0.5rem;
}

.team-member .role {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 1rem;
}

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

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

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

.blog-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

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

.blog-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--text-light);
}

.blog-card h3 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.blog-card p {
  margin-bottom: 1.5rem;
}

/* Article Page */
.article-hero {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-dark) 100%);
  color: var(--text-white);
  padding: 4rem 0 2rem;
  text-align: center;
}

.article-hero h1 {
  color: var(--text-white);
  max-width: 900px;
  margin: 0 auto 1rem;
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1.5rem;
  color: var(--bg-light);
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.article-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: 1rem;
  margin: 2rem 0;
}

.article-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.article-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.article-content p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
  font-size: 1.125rem;
}

.article-content ul,
.article-content ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
  color: var(--text-light);
}

.article-content li {
  margin-bottom: 0.5rem;
}

/* Contact Form */
.contact-section {
  background: var(--bg-light);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 3rem;
}

.contact-info {
  background: var(--bg-white);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  flex-shrink: 0;
}

.contact-form {
  background: var(--bg-white);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.map-container {
  margin-top: 3rem;
  height: 450px;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow);
}

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

/* Features Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--bg-white);
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.feature-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.feature-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  font-size: 1.5rem;
  flex-shrink: 0;
}

/* Stats Section */
.stats-section {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-dark) 100%);
  color: var(--text-white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.stat-item {
  text-align: center;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  backdrop-filter: blur(10px);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--bg-light);
  font-size: 1.125rem;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
  color: var(--text-white);
  text-align: center;
  padding: 5rem 0;
}

.cta-section h2 {
  color: var(--text-white);
  margin-bottom: 1.5rem;
}

.cta-section p {
  color: var(--bg-light);
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

/* Footer */
footer {
  background: var(--secondary-color);
  color: var(--bg-light);
  padding: 3rem 0 1.5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: var(--text-white);
  margin-bottom: 1.5rem;
}

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

.footer-section ul li {
  margin-bottom: 0.75rem;
}

.footer-section ul li a {
  color: var(--bg-light);
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  text-align: center;
  color: var(--bg-light);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--secondary-color);
  color: var(--text-white);
  padding: 1.5rem;
  box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
  z-index: 9999;
  display: none;
}

.cookie-banner.show {
  display: block;
}

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

.cookie-content p {
  margin: 0;
  color: var(--bg-light);
}

/* Responsive Design */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  h3 {
    font-size: 1.5rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .mobile-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    flex-direction: column;
    background: var(--bg-white);
    width: 100%;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
  }

  .nav-menu.active {
    left: 0;
  }

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

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero {
    min-height: 500px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  section {
    padding: 3rem 0;
  }

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