:root {
  --bg-color: #0f172a;
  --card-color: rgba(30, 41, 59, 0.9);
  --text-color: #e2e8f0;
  --accent-color: #38bdf8;
  --title-color: #7dd3fc;
  --highlight: #22d3ee;
  --glass: rgba(255, 255, 255, 0.05);
  --glow: 0 0 20px rgba(56, 189, 248, 0.5);
}

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

body {
  font-family: 'Roboto Mono', monospace;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: var(--text-color);
  overflow-x: hidden;
}

.parallax {
  background-image: url('assets/BrainImage.png');
  min-height: 500px;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  opacity: 0.07;
  filter: contrast(1.2) brightness(1.1);
}


nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #334155;
  padding: 14px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  box-shadow: var(--glow);
}

nav .logo {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.6rem;
  color: var(--accent-color);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 24px;
}

nav ul li a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 600;
  transition: 0.3s;
}

nav ul li a:hover {
  color: var(--highlight);
  text-shadow: var(--glow);
}

select {
  background-color: #1e293b;
  color: var(--text-color);
  border: none;
  font-size: 0.9rem;
  padding: 6px 10px;
  border-radius: 6px;
  outline: none;
}

header {
  padding: 180px 30px 100px;
  text-align: center;
}

header h1 {
  font-size: 3rem;
  font-family: 'Orbitron', sans-serif;
  color: var(--title-color);
  text-shadow: 0 0 10px rgba(125, 211, 252, 0.5);
}

header p {
  font-size: 1.3rem;
  margin-top: 12px;
  color: #cbd5e1;
  opacity: 0.9;
}

section {
  background: var(--card-color);
  padding: 50px;
  margin: 50px auto;
  max-width: 960px;
  border-radius: 18px;
  box-shadow: var(--glow);
  animation: fadeInUp 1s ease forwards;
}

.section-title {
  color: var(--title-color);
  font-size: 2rem;
  margin-bottom: 25px;
  text-align: center;
}

.project-card {
  background: var(--glass);
  border: 1px solid #334155;
  padding: 20px;
  margin: 25px 0;
  border-left: 4px solid var(--highlight);
  border-radius: 12px;
  transition: 0.3s;
}

.project-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: scale(1.02);
}

#contact {
  text-align: center;
}

#contact .btn {
  display: block;
  margin: 20px auto 0;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  background: var(--accent-color);
  color: #0f172a;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  margin-top: 20px;
  transition: 0.3s;
  box-shadow: var(--glow);
}

.btn:hover {
  background: var(--highlight);
  transform: scale(1.05);
}

footer {
  text-align: center;
  padding: 40px;
  font-size: 0.95rem;
  color: #94a3b8;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  nav ul {
    flex-direction: column;
    gap: 10px;
  }
  header h1 {
    font-size: 2.2rem;
  }
  section {
    margin: 20px;
    padding: 30px;
  }
}