:root {
    /* Colors */
    --primary-bg: #000000;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --accent-primary: #ee0000;
    --accent-secondary: #ff4444;
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.7);
    
    /* Animations */
    --transition-fast: 0.2s;
    --transition-normal: 0.3s;
    --transition-slow: 0.4s;
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.3rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    
    /* Shadows */
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.2);
    
    /* Glass Effect */
    --glass-blur: blur(10px);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  }
  
  body {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.5;
    margin: 0;
    min-height: 100vh;
  }
  
  
  .header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-top: var(--spacing-lg);
  }
  
  .header h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  
  .category-filter {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
  }
  
  .filter-btn {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    padding: 0.8em 1.6em;
    border-radius: 50px;
    font-size: 1em;
    cursor: pointer;
    transition: all var(--transition-normal) var(--ease-smooth);
    color: var(--text-secondary);
  }
  
  .filter-btn.active {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--text-primary);
    border: none;
  }
  
  .footer {
    position: fixed;
    inset-inline: 0;
    inset-block-end: 0;
    padding: var(--spacing-xs);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-block-start: 1px solid var(--glass-border);
    box-shadow: var(--shadow-sm);
    z-index: 100;
  }
  
  .social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
  }
  
  .social-link {
    color: var(--text-secondary);
    transition: all var(--transition-normal) var(--ease-smooth);
  }
  
  .social-link:hover {
    color: var(--accent-primary);
    transform: translateY(-2px);
  }
  
  .social-link svg {
    width: 24px;
    height: 24px;
  }
  .container {
    max-width: 1440px;
    margin: 0 auto;
    padding: clamp(1rem, 3vw, var(--spacing-lg));
  }
  
  .project-gallery {
    display: grid;
    gap: clamp(1rem, 2vw, var(--spacing-lg));
    padding: clamp(1rem, 2vw, var(--spacing-md));
    grid-auto-flow: dense;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
    position: relative;
  }
  
  @media (min-width: 1024px) {
    .project-gallery {
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
  }
  
  @media (max-width: 1023px) {
    .project-gallery {
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
  }
  
  @media (max-width: 767px) {
    .project-gallery {
      grid-template-columns: 1fr;
      gap: var(--spacing-md);
    }
  }
  .project-button {
    display: inline-block;
    margin: var(--spacing-sm);
    padding: 0.8em 1.6em;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--transition-normal) var(--ease-smooth);
    position: relative;
    overflow: hidden;
    width: auto;
    max-width: 140px;
    font-size: 0.95em;
  }
  
  .project-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--glass-bg);
    opacity: 0;
    transition: opacity var(--transition-normal);
  }
  
  .project-button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(238, 0, 0, 0.3);
  }
  
  .project-button:hover::before {
    opacity: 0.2;
  }
  
  @media (max-width: 768px) {
    .project-button {
      padding: 0.6em 1.2em;
      font-size: 0.9em;
      margin: var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-sm);
      max-width: 120px;
    }
  }
  /* Performance optimized transitions */
.transition-base {
    transition-property: transform, opacity;
    transition-timing-function: var(--ease-smooth);
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
    will-change: transform, opacity;
  }
  
  /* Reduced motion */
  @media (prefers-reduced-motion: reduce) {
    .transition-base {
      transition: opacity 0.5s ease-out;
      transform: 2px !important;
      will-change: opacity;
    }
  }
  .project-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    box-shadow: var(--glass-shadow);
    will-change: transform, opacity;
    transform-origin: center;
  }
  
  .project-card.visible {
    opacity: 1;
    transform: translateY(0);
  }
  
  .project-card.hidden {
    display: none;
    opacity: 0;
    transform: scale(0.8);
  }
  
  .project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform var(--transition-normal) var(--ease-smooth);
  }
  
  .project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
  }
  
  .project-card:hover img {
    transform: scale(1.05);
  }
  
  .project-card h3 {
    padding: var(--spacing-sm);
    margin: 0;
    font-size: 1.2em;
    color: var(--text-primary);
  }
  
  .card-buttons {
    display: flex;
    gap: var(--spacing-sm);
    padding: 0 var(--spacing-sm) var(--spacing-sm) var(--spacing-sm);
  }
  
  /* Optimize animations for reduced motion preference */
  @media (prefers-reduced-motion: reduce) {
    .project-card {
      transition: opacity var(--transition-fast) ease-out;
      transform: none !important;
    }
    
    .project-card:hover {
      transform: none !important;
    }
    
  }
  @media (hover: hover) and (pointer: fine) {
    .project-card:hover img {
        transform: scale(1.05);
    }
}
  /* Buttons */
.project-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8em 1.6em;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.95em;
    transition: all var(--transition-normal) var(--ease-smooth);
    position: relative;
    overflow: hidden;
}

.project-button:hover {
    transform: scale(1.05); /* Slight zoom on hover */
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
    animation: pulse 1.5s infinite; /* Add pulse animation */
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 10px rgba(255, 255, 255, 0.3), 0 0 30px rgba(238, 0, 0, 0.2);
    }
    50% {
        box-shadow: 0 0 20px rgba(255, 255, 255, 0.4), 0 0 50px rgba(238, 0, 0, 0.3);
    }
    100% {
        box-shadow: 0 0 10px rgba(255, 255, 255, 0.3), 0 0 30px rgba(238, 0, 0, 0.2);
    }
}

  .project-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--glass-bg);
    opacity: 0;
    transition: opacity var(--transition-normal);
  }
  
  .project-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(238, 0, 0, 0.2);
  }
  
  .project-button:hover::before {
    opacity: 0.2;
  }
  
  @media (max-width: 768px) {
    .project-button {
      font-size: 0.85em;
      padding: 0.5em 1em;
    }
  }