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

:root {
  --primary-color: #1a2332;
  --secondary-color: #2d3748;
  --accent-color: #2563eb;
  --accent-hover: #1d4ed8;
  --text-color: #1a2332;
  --text-light: #4a5568;
  --bg-color: #ffffff;
  --bg-light: #f7fafc;
  --bg-alt: #edf2f7;
  --border-color: #e2e8f0;
  --success-color: #10b981;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background: var(--bg-color);
  min-height: 100vh;
}

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

/* Header */
header {
  background: #000000;
  border-bottom: 2px solid #333333;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

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

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 30px;
}

.logo-section {
  display: flex;
  align-items: center;
}

.logo-link {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 15px;
  transition: opacity 0.2s ease;
}

.logo-link:hover {
  opacity: 0.9;
}

.logo-image {
  max-height: 60px;
  width: auto;
  height: auto;
  display: block;
}

.logo-text {
  color: #ffffff;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.main-nav {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  align-items: center;
}

.main-nav a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: color 0.2s ease;
  position: relative;
  padding: 5px 0;
}

.main-nav a:hover,
.main-nav a.active {
  color: #ffffff;
  opacity: 0.8;
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: #ffffff;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: #ffffff;
  padding: 100px 0;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  margin-bottom: 40px;
  opacity: 0.95;
  line-height: 1.6;
}

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

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent-color);
  color: #ffffff;
}

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

.btn-secondary {
  background: transparent;
  color: #ffffff;
  border: 2px solid #ffffff;
}

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

.btn-large {
  padding: 16px 40px;
  font-size: 18px;
}

/* Services Overview Section */
.services-overview {
  padding: 80px 0;
  background: var(--bg-color);
}

.section-heading {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--text-color);
  text-align: center;
}

.section-intro {
  text-align: center;
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 60px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  margin-top: 50px;
}

.service-card {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 40px 30px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

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

.service-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.service-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--text-color);
}

.service-description {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-light);
  margin-bottom: 20px;
}

.service-link {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

.service-link:hover {
  color: var(--accent-hover);
}

/* Why Choose Section */
.why-choose-section {
  padding: 80px 0;
  background: var(--bg-light);
}

.why-choose-content {
  max-width: 900px;
  margin: 0 auto;
}

.features-list {
  list-style: none;
  padding: 0;
}

.features-list li {
  padding: 15px 0;
  padding-left: 30px;
  position: relative;
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-color);
}

.features-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: 700;
  font-size: 1.5rem;
}

.features-list li strong {
  color: var(--primary-color);
}

/* CTA Section */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
  color: #ffffff;
  text-align: center;
}

.cta-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 15px;
}

.cta-text {
  font-size: 1.2rem;
  margin-bottom: 30px;
  opacity: 0.95;
}

/* Page Header */
.page-header {
  background: var(--bg-light);
  padding: 60px 0;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.page-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--text-color);
}

.page-subtitle {
  font-size: 1.2rem;
  color: var(--text-light);
}

/* Service Detail Section */
.service-detail-section {
  padding: 80px 0;
  background: var(--bg-color);
}

.service-detail-section.alt-bg {
  background: var(--bg-light);
}

.service-detail {
  max-width: 900px;
  margin: 0 auto;
}

.service-detail-header {
  text-align: center;
  margin-bottom: 50px;
}

.service-icon-large {
  font-size: 64px;
  margin-bottom: 20px;
}

.service-detail-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--text-color);
}

.service-detail-content {
  line-height: 1.8;
}

.service-intro {
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 40px;
  line-height: 1.8;
}

.service-subtitle {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 40px;
  margin-bottom: 20px;
  color: var(--text-color);
}

.service-features,
.service-benefits {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
}

.service-features li,
.service-benefits li {
  padding: 12px 0;
  padding-left: 30px;
  position: relative;
  color: var(--text-color);
  line-height: 1.7;
}

.service-features li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: 700;
  font-size: 1.5rem;
}

.service-benefits li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: 700;
  font-size: 1.5rem;
}

.service-features li strong {
  color: var(--primary-color);
}

/* About Page */
.about-page-section {
  padding: 80px 0;
  background: var(--bg-color);
}

.about-page-content {
  max-width: 900px;
  margin: 0 auto;
}

.about-text-block {
  margin-bottom: 60px;
}

.about-text-block p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-color);
  margin-bottom: 20px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 30px;
}

.value-item {
  padding: 30px;
  background: var(--bg-light);
  border-radius: 8px;
  border-left: 4px solid var(--accent-color);
}

.value-item h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-color);
}

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

.expertise-list,
.why-list {
  list-style: none;
  padding: 0;
  margin-top: 20px;
}

.expertise-list li,
.why-list li {
  padding: 12px 0;
  padding-left: 30px;
  position: relative;
  color: var(--text-color);
  line-height: 1.7;
  font-size: 1.1rem;
}

.expertise-list li::before,
.why-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: 700;
  font-size: 1.5rem;
}

.expertise-list li strong,
.why-list li strong {
  color: var(--primary-color);
}

/* Contact Section */
.contact-section {
  padding: 80px 0;
  background: var(--bg-color);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info h2,
.contact-form-container h2 {
  margin-bottom: 20px;
}

.contact-info p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-light);
  margin-bottom: 40px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.contact-item h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-color);
}

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

.contact-item a {
  color: var(--accent-color);
  text-decoration: none;
}

.contact-item a:hover {
  text-decoration: underline;
}

/* Contact Form */
.contact-form {
  background: var(--bg-light);
  padding: 40px;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 16px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: inherit;
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
  resize: vertical;
}

.form-message {
  margin-top: 20px;
  padding: 12px;
  border-radius: 6px;
  display: none;
}

.form-message.success {
  background: #d1fae5;
  color: #065f46;
  display: block;
}

.form-message.error {
  background: #fee2e2;
  color: #991b1b;
  display: block;
}

/* Footer */
.footer {
  background: var(--primary-color);
  color: #ffffff;
  padding: 60px 20px 30px;
  margin-top: 80px;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

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

.footer-heading {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.footer-subheading {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 15px;
}

.footer-text {
  opacity: 0.9;
  line-height: 1.7;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #ffffff;
  text-decoration: none;
  opacity: 0.9;
  transition: opacity 0.2s ease;
}

.footer-links a:hover {
  opacity: 1;
  text-decoration: underline;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  opacity: 0.8;
  font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-content {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .logo-image {
    max-height: 50px;
  }

  .logo-text {
    font-size: 20px;
  }

  .logo-link {
    gap: 12px;
  }

  .main-nav {
    gap: 20px;
  }

  .hero-section {
    padding: 60px 0;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

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

  .services-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

  .contact-form {
    padding: 30px 20px;
  }

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

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

@media (max-width: 480px) {
  .header-container {
    padding: 15px 15px;
  }

  .logo-image {
    max-height: 50px;
  }

  .logo-text {
    font-size: 18px;
  }

  .logo-link {
    gap: 10px;
  }

  .main-nav {
    gap: 15px;
    font-size: 14px;
  }

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

  .service-card {
    padding: 30px 20px;
  }

  .service-detail-content {
    font-size: 1rem;
  }
}