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

:root {
  --primary-color: #0066cc;
  --secondary-color: #00a8e8;
  --accent-color: #ffa500;
  --text-dark: #333333;
  --text-light: #666666;
  --bg-light: #f8f9fa;
  --bg-white: #ffffff;
  --border-color: #e0e0e0;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.15);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
}

/* Header & Navigation */
header {
  background: linear-gradient(135deg, #0066cc 0%, #00a8e8 100%);
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  letter-spacing: 1px;
}

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

nav a {
  color: white;
  text-decoration: none;
  transition: opacity 0.3s;
  font-size: 1rem;
}

nav a:hover {
  opacity: 0.8;
}

.language-switch {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.3s;
  font-size: 0.9rem;
}

.language-switch:hover {
  background: rgba(255, 255, 255, 0.3);
}

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

.hamburger span {
  width: 25px;
  height: 3px;
  background: white;
  border-radius: 2px;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.9) 0%, rgba(0, 168, 232, 0.9) 100%), 
              url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="1200" height="600" fill="url(%23grid)" /></svg>');
  background-size: cover;
  background-position: center;
  color: white;
  padding: 6rem 2rem;
  text-align: center;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
  letter-spacing: -1px;
}

.hero p {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  opacity: 0.95;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2.5rem;
  font-size: 1rem;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
  font-weight: 600;
  letter-spacing: 0.5px;
}

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

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: 2px solid white;
}

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

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

/* Section */
section {
  padding: 5rem 2rem;
}

section.alternate {
  background: var(--bg-light);
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--primary-color);
}

.section-subtitle {
  text-align: center;
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.service-card {
  background: white;
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: all 0.3s;
  border-top: 4px solid var(--primary-color);
}

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

.service-card:nth-child(2) {
  border-top-color: var(--secondary-color);
}

.service-card:nth-child(3) {
  border-top-color: var(--accent-color);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.service-card p {
  color: var(--text-light);
  line-height: 1.8;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 3rem;
}

.features-list {
  list-style: none;
}

.features-list li {
  padding: 1rem 0;
  padding-left: 2rem;
  position: relative;
  color: var(--text-light);
  font-size: 1.05rem;
}

.features-list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--secondary-color);
  font-weight: bold;
  font-size: 1.3rem;
}

.feature-image {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

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

.team-member {
  text-align: center;
}

.team-member-image {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 3rem;
}

.team-member h4 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.team-member p {
  color: var(--text-light);
}

/* Footer */
footer {
  background: var(--text-dark);
  color: white;
  padding: 3rem 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  margin-bottom: 1rem;
  color: var(--secondary-color);
}

.footer-section p {
  color: #ccc;
  line-height: 1.8;
  font-size: 0.95rem;
}

.footer-section a {
  color: #ccc;
  text-decoration: none;
  transition: color 0.3s;
}

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

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

.footer-section li {
  padding: 0.5rem 0;
}

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

.social-links {
  display: flex;
  gap: 1.5rem;
  margin: 1rem 0;
}

.social-links a {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: background 0.3s;
}

.social-links a:hover {
  background: var(--secondary-color);
}

/* Responsive */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: linear-gradient(135deg, #0066cc 0%, #00a8e8 100%);
    padding: 2rem;
    gap: 1rem;
    z-index: 99;
  }

  nav.active {
    display: flex;
  }

  .header-content {
    padding: 1rem;
  }

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

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

  .hero {
    padding: 4rem 2rem;
    min-height: 400px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 1rem;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .section-title {
    font-size: 2rem;
  }

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

  section {
    padding: 3rem 1rem;
  }

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

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

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .btn {
    padding: 0.8rem 1.5rem;
    font-size: 0.9rem;
  }

  nav a {
    font-size: 0.9rem;
  }
}

/* Service Card Images */
.service-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 1rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover img {
  transform: scale(1.03);
  box-shadow: 0 4px 12px rgba(0, 102, 204, 0.2);
}

@media (max-width: 768px) {
  .service-card img {
    height: 150px;
  }
}