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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f9f9f9;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.header {
  background-color: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: #2c3e50;
}

.nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #2c3e50;
  font-weight: 500;
  transition: color 0.3s;
}

.nav a:hover {
  color: #3498db;
}

.hero {
  background: linear-gradient(135deg, #3498db, #8e44ad);
  color: white;
  text-align: center;
  padding: 180px 20px 100px;
  margin-top: 70px;
}

.hero h2 {
  font-size: 3rem;
  margin-bottom: 15px;
}

.hero p {
  font-size: 1.3rem;
  margin-bottom: 30px;
  opacity: 0.9;
}

.btn {
  background-color: #f39c12;
  color: white;
  padding: 15px 30px;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  display: inline-block;
  transition: background 0.3s;
}

.btn:hover {
  background-color: #e67e22;
}

.section {
  padding: 80px 0;
  text-align: center;
}

.section h2 {
  font-size: 2.2rem;
  margin-bottom: 40px;
  color: #2c3e50;
}

.about p {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.1rem;
  color: #555;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.skill-card {
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s;
}

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

.skill-card i {
  color: #3498db;
  margin-bottom: 15px;
}

.skill-card h3 {
  color: #2c3e50;
  margin-bottom: 10px;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-top: 40px;
}

.portfolio-item {
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s;
}

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

.portfolio-item img, .portfolio-item video {
  width: 100%;
  height: auto;
  display: block;
}

.portfolio-item h3 {
  margin: 15px 10px 5px;
  color: #2c3e50;
}

.portfolio-item p {
  color: #666;
  font-size: 0.95rem;
  padding: 0 15px 15px;
}

.contact p {
  max-width: 600px;
  margin: 15px auto 25px;
  color: #555;
}

.contact-info {
  margin: 30px 0;
  font-size: 1.1rem;
  color: #2c3e50;
}

.contact-info i {
  margin-right: 10px;
  color: #3498db;
}

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

.social-links a {
  color: #3498db;
  margin: 0 15px;
  transition: color 0.3s;
}

.social-links a:hover {
  color: #2980b9;
}

.footer {
  background-color: #2c3e50;
  color: white;
  text-align: center;
  padding: 20px 0;
}

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

  .nav a {
    margin: 10px 0;
  }

  .hero h2 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

  .section {
    padding: 60px 0;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 150px 20px 80px;
  }

  .hero h2 {
    font-size: 1.8rem;
  }

  .btn {
    padding: 12px 20px;
  }
}