:root {
  --primary-color: #4a90e2;
  --secondary-color: #2c3e50;
  --background-color: #000000;
  --text-color: #ffffff;
}

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

body {
  font-family: "Arial", sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  overflow-x: hidden;
}

#scene-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.nav-3d {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 2rem;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.8);
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
}

.nav-3d ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin-left: auto;
}

.nav-3d a {
  color: var(--text-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-3d a:hover {
  color: var(--primary-color);
}

.content {
  padding: 10rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section {
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.section-content {
  max-width: 800px;
}

.section h1,
.section h2 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.section p {
  font-size: 1.2rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.skill-card {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  text-align: center;
  transition: transform 0.3s ease;
}

.skill-card:hover {
  transform: translateY(-5px);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.project-card {
  background: rgba(255, 255, 255, 0.1);
  padding: 2rem;
  border-radius: 10px;
  transition: transform 0.3s ease;
}

.project-card:hover {
  transform: translateY(-5px);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 500px;
}

.contact-form input,
.contact-form textarea {
  padding: 1rem;
  border: none;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-color);
}

.contact-form button {
  padding: 1rem;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.contact-form button:hover {
  background: #357abd;
}

@media (max-width: 768px) {
  .nav-3d ul {
    display: none;
  }

  .section h1,
  .section h2 {
    font-size: 2rem;
  }

  .content {
    padding: 5rem 1rem;
  }
}