:root {
  --primary: #0f2027;
  --secondary: #203a43;
  --accent: #2c5364;
  --neon-blue: #00ffff;
  --neon-pink: #ff00cc;
  --neon-purple: #3333ff;
  --text-light: rgba(255,255,255,0.9);
  --text-muted: rgba(255,255,255,0.6);
  --card-bg: rgba(255,255,255,0.08);
  --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700&family=Roboto:wght@300;400;500&display=swap');

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

body {
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
  color: var(--text-light);
  font-family: 'Roboto', sans-serif;
  line-height: 1.7;
  min-height: 100%;
  overflow-x: hidden;
}

header {
  position: relative;
  padding: 2rem 0;
  text-align: center;
  background: linear-gradient(90deg, 
    rgba(15,32,39,0.8) 0%, 
    rgba(32,58,67,0.9) 50%, 
    rgba(44,83,100,0.8) 100%);
  border-bottom: 1px solid rgba(0,255,255,0.2);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  z-index: 10;
}

.header-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2rem, 5vw, 3.5rem);
  background: linear-gradient(45deg, var(--neon-pink), var(--neon-purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 15px rgba(255,0,204,0.5);
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.header-subtitle {
  color: var(--neon-blue);
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
}

.navbar {
  position: sticky;
  top: 0;
  display: flex;
  justify-content: center;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(10px);
  padding: 1rem;
  z-index: 100;
  border-bottom: 1px solid rgba(0,255,255,0.1);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  color: var(--text-light);
  text-decoration: none;
  font-family: 'Orbitron', sans-serif;
  font-size: 1.1rem;
  position: relative;
  padding: 0.5rem 0;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background: var(--neon-blue);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--neon-blue);
}

.nav-link:hover::after {
  width: 100%;
}

.container {
  max-width: 1200px;
  margin: 3rem auto;
  padding: 0 2rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 2rem;
  backdrop-filter: blur(5px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    to bottom right,
    rgba(0,255,255,0.1) 0%,
    rgba(0,255,255,0) 50%,
    rgba(255,0,204,0.1) 100%
  );
  transform: rotate(30deg);
  z-index: -1;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 45px rgba(0,0,0,0.3);
  border-color: rgba(0,255,255,0.3);
}

.card-title {
  font-family: 'Orbitron', sans-serif;
  color: var(--neon-blue);
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

.card-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink));
  border-radius: 3px;
}

.card-content {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin: 1.5rem 0;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  transition: var(--transition);
}

.card-image:hover {
  transform: scale(1.03);
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.image-grid img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid rgba(0,255,255,0.3);
  transition: var(--transition);
  box-shadow: 0 0 10px rgba(0,255,255,0.2);
}

.image-grid img:hover {
  transform: scale(1.05);
  box-shadow: 0 0 20px rgba(0,255,255,0.4);
}

pre {
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(0,255,255,0.2);
  border-radius: 8px;
  padding: 1.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  position: relative;
}

pre::before {
  content: 'CSS';
  position: absolute;
  top: 0;
  left: 0;
  background: var(--neon-blue);
  color: #000;
  padding: 0.2rem 0.8rem;
  font-size: 0.8rem;
  border-bottom-right-radius: 8px;
  font-family: 'Orbitron', sans-serif;
}

code {
  font-family: 'Roboto Mono', monospace;
  color: var(--neon-blue);
  background: transparent;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
}

.glow-text {
  text-shadow: 0 0 10px var(--neon-blue), 0 0 20px var(--neon-pink);
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  background: transparent;
  border: 2px solid var(--neon-blue);
  color: var(--neon-blue);
  border-radius: 30px;
  font-family: 'Orbitron', sans-serif;
  text-decoration: none;
  margin: 1rem 0;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(0,255,255,0.2), 
    transparent);
  transition: 0.5s;
}

.btn:hover {
  background: rgba(0,255,255,0.1);
  box-shadow: 0 0 15px var(--neon-blue), 0 0 30px var(--neon-purple);
}

.btn:hover::before {
  left: 100%;
}

footer {
  text-align: center;
  padding: 2rem;
  background: rgba(0,0,0,0.5);
  margin-top: 4rem;
  border-top: 1px solid rgba(0,255,255,0.1);
}

.footer-text {
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .grid {
    grid-template-columns: 1fr;
  }
  
  .nav-links {
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .card {
    padding: 1.5rem;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.floating {
  animation: float 3s ease-in-out infinite;
}

.pulsing {
  animation: pulse 2s ease-in-out infinite;
}