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

:root {
  --primary-color: #1e40af;
  --primary-dark: #1e3a8a;
  --primary-light: #3b82f6;
  --secondary-color: #0f766e;
  --accent-color: #f59e0b;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --bg-light: #f9fafb;
  --bg-white: #ffffff;
  --border-color: #e5e7eb;
  --success-color: #10b981;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-light);
  color: var(--text-primary);
  line-height: 1.6;
}

.section-title-centered {
  text-align: center;
}

/* Header & Navigation */
header {
  background-color: var(--bg-white);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  gap: 2rem;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.3s ease;
}

.logo-section:hover {
  opacity: 0.8;
}

.logo {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  color: white;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

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

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

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

.lang-switch {
  display: flex;
  gap: 0.5rem;
}

.lang-switch button {
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.8rem;
  transition: all 0.3s ease;
}

.lang-switch button:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* Hero Section */
.hero {
  padding: 6rem 2rem;
  background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-content {
  max-width: 600px;
}

.hero h1 {
  font-family: 'Poppins', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.8;
}

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

.hero-visual {
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  border-radius: 20px;
  opacity: 0.1;
  display: none;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s ease;
  font-family: 'Inter', sans-serif;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 64, 175, 0.3);
}

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

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

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.05rem;
  width: 100%;
}

/* Sections */
main {
  min-height: 100vh;
}

.section-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 5rem 2rem;
}

section h2 {
  font-family: 'Poppins', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

section p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

/* Workers Section */
.workers-section {
  background-color: var(--bg-white);
}

.workers-content {
  background: linear-gradient(135deg, #f0f9ff 0%, #eff6ff 100%);
  padding: 2rem;
  border-radius: 12px;
  border-left: 4px solid var(--primary-color);
}

.workers-content p:last-of-type {
  margin-bottom: 2rem;
}

/* Clients Section */
.clients-section {
  background-color: var(--bg-light);
}

.clients-content {
  background: linear-gradient(135deg, #f0fdf4 0%, #f7fee7 100%);
  padding: 2rem;
  border-radius: 12px;
  border-left: 4px solid var(--secondary-color);
}

.clients-content p:last-of-type {
  margin-bottom: 2rem;
}

/* Reviews Section */
.reviews-section {
  background-color: var(--bg-white);
  
}

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

.review-card {
  background: var(--bg-light);
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  border-color: var(--primary-color);
}

.review-stars {
  font-size: 1.2rem;
  color: var(--accent-color);
  margin-bottom: 1rem;
  letter-spacing: 0.1em;
}

.review-card p {
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.review-avatar {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.review-name {
  font-weight: 600;
  margin-bottom: 0.25rem;
  font-size: 0.95rem;
}

.review-role {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

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

.contact-form {
  background: var(--bg-white);
  padding: 2.5rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  max-width: 500px;
   margin: 0 auto;
}

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

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  transition: all 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(30, 64, 175, 0.1);
}

.form-success {
  background: linear-gradient(135deg, #f0fdf4 0%, #f7fee7 100%);
  padding: 1.5rem;
  border-radius: 8px;
  border-left: 4px solid var(--success-color);
  text-align: center;
}

.form-success p {
  color: var(--success-color);
  font-weight: 600;
  margin: 0;
}

/* Footer */
footer {
  background-color: var(--text-primary);
  color: white;
  padding: 3rem 2rem 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  max-width: 1200px;
  margin: 0 auto;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

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

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

.footer-section a {
  color: #d1d5db;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: white;
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.social-links a {
  display: inline-block;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #9ca3af;
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-wrap: wrap;
    padding: 1rem;
    gap: 1rem;
  }

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

  .logo-section {
    font-size: 1rem;
  }

  .hero {
    padding: 3rem 1.5rem;
  }

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

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

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

  section {
    padding: 3rem 1.5rem;
  }

  section h2 {
    font-size: 1.8rem;
  }

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

  .contact-form {
    padding: 1.5rem;
  }

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

@media (max-width: 480px) {
  .header-content {
    justify-content: space-between;
  }

  nav ul {
    flex-direction: column;
    gap: 0.5rem;
    display: none;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  section h2 {
    font-size: 1.5rem;
  }

  .lang-switch {
    gap: 0.25rem;
  }

  .lang-switch button {
    padding: 0.4rem 0.6rem;
    font-size: 0.7rem;
  }
}