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

:root {
  --primary-color: #0052CC;
  --secondary-color: #1f89ff;
  --dark-color: #1a1a1a;
  --light-color: #f5f5f5;
  --text-color: #333;
  --border-color: #e0e0e0;
  --success-color: #0ca678;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-color);
  background-color: #fff;
  line-height: 1.6;
}

/* Header & Navigation */
header {
  background-color: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 3rem;
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
}

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

.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-links a:hover {
  color: var(--primary-color);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

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

.contact-btn {
  background-color: var(--primary-color);
  color: white;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: background-color 0.3s ease, transform 0.3s ease;
  text-decoration: none;
}

.contact-btn:hover {
  background-color: #003d99;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, rgba(0, 82, 204, 0.1) 0%, rgba(31, 137, 255, 0.1) 100%);
  padding: 6rem 2rem;
  text-align: center;
}

.hero-content {
  max-width: 1000px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: var(--dark-color);
  font-weight: 700;
}

.hero .subtitle {
  font-size: 1.3rem;
  color: #666;
  margin-bottom: 2rem;
  line-height: 1.8;
}

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

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  padding: 1rem 2rem;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.btn-primary:hover {
  background-color: #003d99;
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 82, 204, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary-color);
  padding: 1rem 2rem;
  border: 2px solid var(--primary-color);
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

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

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

/* Section Styles */
section {
  padding: 4rem 2rem;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--dark-color);
  font-weight: 700;
  text-align: center;
}

.section-subtitle {
  font-size: 1.1rem;
  color: #666;
  text-align: center;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

.feature-card {
  padding: 2rem;
  background-color: var(--light-color);
  border-radius: 12px;
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
  background-color: #fff;
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: var(--dark-color);
}

.feature-card p {
  color: #666;
  line-height: 1.8;
}

/* Services Section */
.services {
  background-color: var(--light-color);
}

.service-item {
  padding: 2rem;
  background-color: white;
  border-radius: 12px;
  margin-bottom: 2rem;
  border-left: 4px solid var(--primary-color);
  transition: all 0.3s ease;
}

.service-item:hover {
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.service-item h3 {
  color: var(--primary-color);
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.service-item ul {
  margin-left: 1.5rem;
  color: #666;
}

.service-item ul li {
  margin-bottom: 0.5rem;
}

/* Team Section */
.team-section .features-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.team-member {
  text-align: center;
  padding: 2rem;
  background-color: var(--light-color);
  border-radius: 12px;
  transition: all 0.3s ease;
}

.team-member:hover {
  transform: translateY(-8px);
  background-color: white;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.team-avatar {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
  font-weight: bold;
}

.team-member h3 {
  font-size: 1.2rem;
  margin-bottom: 0.3rem;
  color: var(--dark-color);
}

.team-member .role {
  color: var(--primary-color);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.team-member p {
  color: #666;
  font-size: 0.9rem;
}

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

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.contact-info {
  padding: 2rem;
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--dark-color);
}

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

.contact-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 1rem;
  margin-bottom: 0.3rem;
  color: var(--dark-color);
}

.contact-item p, .contact-item a {
  color: #666;
  text-decoration: none;
  transition: color 0.3s ease;
}

.contact-item a:hover {
  color: var(--primary-color);
}

/* Form */
.contact-form {
  background-color: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

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

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group button {
  width: 100%;
}

/* Footer */
footer {
  background-color: var(--dark-color);
  color: #ccc;
  padding: 3rem 2rem;
  margin-top: 2rem;
}

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

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

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

.footer-section a {
  color: #ccc;
  text-decoration: none;
  transition: color 0.3s ease;
  display: block;
  margin-bottom: 0.5rem;
}

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

.footer-bottom {
  border-top: 1px solid #444;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: #ccc;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
  nav {
    padding: 1rem;
    flex-wrap: wrap;
  }

  .nav-links {
    gap: 1rem;
    font-size: 0.9rem;
  }

  .contact-btn {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

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

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

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
  }

  .footer-links {
    justify-content: center;
  }

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

  .btn-primary, .btn-secondary {
    width: 100%;
  }
}

@media (max-width: 480px) {
  nav {
    padding: 0.75rem;
    flex-direction: column;
    gap: 0.5rem;
  }

  .logo {
    font-size: 1.2rem;
  }

  .nav-links {
    gap: 0.75rem;
    font-size: 0.85rem;
    order: 3;
    width: 100%;
  }

  .nav-right {
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
    order: 2;
  }

  .contact-btn {
    width: 100%;
    text-align: center;
    font-size: 0.85rem;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

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

  .feature-card, .service-item {
    padding: 1.5rem;
  }
}