/* Variables */
:root {
  --primary: #0056b3;
  --secondary: #333;
  --light: #f8f9fa;
  --dark: #212529;
  --white: #fff;
  --gray: #6c757d;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--secondary);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: fixed;
  width: 100%;
  z-index: 1000;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
}

.logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--primary);
}

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

nav ul li {
  margin-left: 30px;
}

nav ul li a {
  text-decoration: none;
  color: var(--secondary);
  font-weight: 500;
  transition: color 0.3s;
}

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

/* Hero */
.hero {
  background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1000&q=80');
  background-size: cover;
  background-position: center;
  height: 100vh;
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--white);
  padding-top: 80px;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.5rem;
  margin-bottom: 30px;
}

/* Services */
.services {
  padding: 100px 0;
  background-color: var(--light);
}

.services h2 {
  text-align: center;
  margin-bottom: 50px;
  font-size: 2.5rem;
  color: var(--primary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.service {
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s;
}

.service:hover {
  transform: translateY(-10px);
}

.service img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.service h3 {
  padding: 20px;
  color: var(--primary);
}

.service p {
  padding: 0 20px 20px;
  color: var(--gray);
}

/* About */
.about {
  padding: 100px 0;
  text-align: center;
}

.about h2 {
  margin-bottom: 30px;
  font-size: 2.5rem;
  color: var(--primary);
}

.about p {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.1rem;
}

/* Contact */
.contact {
  padding: 100px 0;
  background-color: var(--light);
}

.contact h2 {
  text-align: center;
  margin-bottom: 50px;
  font-size: 2.5rem;
  color: var(--primary);
}

form {
  max-width: 600px;
  margin: 0 auto;
  display: grid;
  gap: 20px;
}

input, textarea {
  width: 100%;
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-size: 1rem;
}

textarea {
  height: 150px;
  resize: vertical;
}

/* Footer */
footer {
  background-color: var(--dark);
  color: var(--white);
  padding: 50px 0 20px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}

.footer-info h3 {
  font-size: 24px;
  margin-bottom: 10px;
  color: var(--white);
}

.social-links a {
  color: var(--white);
  font-size: 24px;
  margin-left: 20px;
  transition: color 0.3s;
}

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

.copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Button */
.btn {
  display: inline-block;
  background-color: var(--primary);
  color: var(--white);
  padding: 12px 30px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 500;
  transition: background-color 0.3s;
}

.btn:hover {
  background-color: #003d7a;
}

/* Responsive */
@media (max-width: 768px) {
  header .container {
    flex-direction: column;
  }

  nav ul {
    margin-top: 20px;
  }

  nav ul li {
    margin: 0 10px;
  }

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

  .hero p {
    font-size: 1.2rem;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .social-links {
    margin-top: 20px;
  }

  .social-links a {
    margin: 0 10px;
  }
}