:root {
  --primary: #00b74a;
  --primary-dark: #00993a;
  --dark: #0a0a0a;
}

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

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  line-height: 1.6;
  color: #333;
}

/* Header */
header {
  background: rgba(10, 10, 10, 0.97);
  backdrop-filter: blur(10px);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid #222;
}

nav {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2.2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: #ddd;
  font-weight: 500;
  transition: color 0.3s;
}

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

/* Language Switcher */
.lang-switcher {
  display: flex;
  background: #1a1a1a;
  border-radius: 50px;
  padding: 4px;
  border: 1px solid #333;
}

.lang-btn {
  padding: 8px 16px;
  border: none;
  background: transparent;
  color: #aaa;
  font-weight: 600;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s;
}

.lang-btn.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 2px 8px rgba(0, 183, 74, 0.3);
}

.lang-btn:hover:not(.active) {
  color: #ddd;
}

/* CTA Button */
.cta-button {
  background: var(--primary);
  color: white;
  padding: 0.85rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
}

.cta-button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

/* Hero */
.hero {
  height: 100vh;
  background: linear-gradient(rgba(0,0,0,0.75), rgba(0,0,0,0.85)), 
              url('https://images.unsplash.com/photo-1581091226825-a6a9a6d4f1e7?ixlib=rb-4.0.3&auto=format&fit=crop&q=80') center/cover no-repeat;
  display: flex;
  align-items: center;
  color: white;
  text-align: center;
}

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

.hero h1 {
  font-size: 3.6rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.35rem;
  margin-bottom: 2.5rem;
  opacity: 0.95;
}

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

.btn {
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-size: 1.1rem;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

.btn-outline {
  border: 2px solid white;
  color: white;
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
}

/* Sections */
section {
  padding: 110px 0 100px;
}

.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 2rem;
}

h2 {
  font-size: 2.8rem;
  text-align: center;
  margin-bottom: 3rem;
  color: #0a0a0a;
}

/* About Us */
.about {
  background: #f8f9fa;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text h3 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

/* Services */
.services {
  background: white;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.card {
  background: white;
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  transition: all 0.3s;
}

.card:hover {
  transform: translateY(-12px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.card h3 {
  font-size: 1.65rem;
  margin: 1.5rem 0 1rem;
  color: var(--dark);
}

/* Contact */
.contact {
  background: #0f0f0f;
  color: #ddd;
}

.contact h2 {
  color: white;
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

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

.contact-form {
  background: #1a1a1a;
  padding: 2.5rem;
  border-radius: 16px;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: #ccc;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: #222;
  border: 1px solid #444;
  border-radius: 8px;
  color: white;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.submit-btn {
  background: var(--primary);
  color: white;
  padding: 1rem 2.5rem;
  border: none;
  border-radius: 50px;
  font-size: 1.1rem;
  cursor: pointer;
  width: 100%;
  margin-top: 1rem;
}

.submit-btn:hover {
  background: var(--primary-dark);
}

/* Footer */
footer {
  background: #050505;
  color: #aaa;
  padding: 80px 0 40px;
}

.copyright {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #222;
  color: #666;
}

/* Responsive */
@media (max-width: 992px) {
  .nav-links {
    gap: 1.5rem;
    font-size: 0.95rem;
  }
  
  .about-content, .contact-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .hero h1 {
    font-size: 2.8rem;
  }
}

@media (max-width: 768px) {
  nav {
    justify-content: center;
    text-align: center;
  }
  
  .lang-switcher {
    margin: 10px 0;
  }
}