:root {
    --primary: #0f2027;
    --secondary: #203a43;
    --accent: #2c5364;
    --highlight: #f2994a;
    --light: #f5f7fa;
    --dark: #0a1419;
    --gradient-blue: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
    --gradient-orange: linear-gradient(45deg, #ff7e5f, #feb47b);
    --gradient-yellow: linear-gradient(90deg, #f2994a, #f2c94c);
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', system-ui, -apple-system, sans-serif;
  }

  body {
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }

  header {
    background: var(--gradient-blue);
    color: white;
    padding: 2rem 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  }

  header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
  }

  .header-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
  }

  .header-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    background: linear-gradient(90deg, white, #f5f7fa);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
  }

  .header-subtitle {
    font-size: 1.25rem;
    max-width: 700px;
    opacity: 0.9;
  }

  .design-note {
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-top: 1rem;
    border: 1px solid rgba(255,255,255,0.3);
  }

  .nav-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    position: relative;
  }

  .nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: white;
    transition: width 0.3s ease;
  }

  .nav-link:hover::after {
    width: 70%;
  }

  .content-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 3rem 0;
  }

  article {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
  }

  article::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-orange);
  }

  h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
    position: relative;
    padding-bottom: 0.5rem;
  }

  h2::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-orange);
    border-radius: 3px;
  }

  h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    color: var(--secondary);
  }

  p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.7;
  }

  .image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
  }

  .decor-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .decor-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
  }

  pre {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 1.5rem;
    overflow-x: auto;
    margin: 2rem 0;
    border-left: 4px solid var(--highlight);
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.95rem;
    line-height: 1.5;
    position: relative;
  }

  pre::before {
    content: "CSS";
    position: absolute;
    top: 0;
    right: 0;
    background: var(--highlight);
    color: white;
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
    border-bottom-left-radius: 4px;
  }

  code {
    font-family: 'Courier New', Courier, monospace;
    background: rgba(242, 153, 74, 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9rem;
    color: #d35400;
  }

  .tech-card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    margin: 2rem 0;
    border-top: 3px solid var(--highlight);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .tech-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  }

  .tech-card h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--accent);
  }

  .footer {
    background: var(--gradient-blue);
    color: white;
    padding: 3rem 0;
    text-align: center;
    margin-top: 3rem;
  }

  .footer-content {
    max-width: 600px;
    margin: 0 auto;
  }

  .footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
  }

  .footer-link {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
  }

  .footer-link:hover {
    opacity: 0.8;
  }

  @media (max-width: 768px) {
    .header-content {
      padding: 0 1rem;
    }
    
    article {
      padding: 1.5rem;
    }
    
    h2 {
      font-size: 1.75rem;
    }
    
    h3 {
      font-size: 1.3rem;
    }
    
    .image-grid {
      grid-template-columns: 1fr;
    }
  }

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

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

  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .fade-in {
    animation: fadeIn 0.8s ease-out forwards;
  }

  .delay-1 {
    animation-delay: 0.2s;
  }

  .delay-2 {
    animation-delay: 0.4s;
  }

  .delay-3 {
    animation-delay: 0.6s;
  }