:root {
  --bg: #0a0e27;
  --surface: rgba(255,255,255,.04);
  --surface-hover: rgba(255,255,255,.08);
  --border: rgba(255,255,255,.06);
  --border-hover: rgba(255,255,255,.12);
  --text: #ffffff;
  --text-muted: rgba(255,255,255,.45);
  --text-body: rgba(255,255,255,.65);
  --accent: #00d9ff;
  --accent-2: #7c3aed;
  --radius: 0.75rem;
}

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

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.nav-link {
  color: var(--text-body);
  transition: color 0.2s ease;
  font-weight: 500;
}

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

.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn-primary {
  display: inline-block;
  padding: 1rem 2rem;
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
  border-radius: var(--radius);
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,217,255,0.2);
}

.btn-primary:hover {
  box-shadow: 0 8px 30px rgba(0,217,255,0.4);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-block;
  padding: 1rem 2rem;
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: var(--border-hover);
}

.hero-image-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: 1rem;
}

.hero-image-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,217,255,0.15), rgba(124,58,237,0.15));
  z-index: 1;
  pointer-events: none;
}

.glass-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
}

.portfolio-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  cursor: pointer;
}

.portfolio-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.portfolio-card img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.portfolio-card:hover img {
  transform: scale(1.05);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,14,39,0.95), transparent);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.portfolio-category {
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.skill-tag {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-body);
  transition: all 0.2s ease;
}

.skill-tag:hover {
  background: var(--surface-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.social-link {
  color: var(--text-muted);
  font-weight: 500;
  transition: color 0.2s ease;
}

.social-link:hover {
  color: var(--accent);
}

.ao {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.ao.v {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .hero-image-wrapper {
    margin-top: 2rem;
  }
  
  .portfolio-card img {
    height: 300px;
  }
  
  .glass-card {
    padding: 2rem !important;
  }
  
  h1 {
    font-size: 2.5rem !important;
  }
  
  h2 {
    font-size: 2rem !important;
  }
}

@media (max-width: 640px) {
  .btn-primary, .btn-secondary {
    width: 100%;
    text-align: center;
  }
  
  .portfolio-overlay {
    opacity: 1;
  }
}