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

      :root {
        --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        --dark-gradient: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
        --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        --card-hover-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
        --text-primary: #000000;
        --text-secondary: #6c757d;
        --accent-color: #7c858b;
        --success-color: #27ae60;
        --warning-color: #f39c12;
        --danger-color: #e74c3c;
        --surface-white: #d8d3d3;
        --surface-gray: #dddddd;
        --border-light: #83888f;
      }

      body {
        font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
        line-height: 1.6;
        background: var(--surface-gray);
        min-height: 100vh;
        animation: fadeIn 1s ease-out;
      }

      @keyframes fadeIn {
        from {
          opacity: 0;
          transform: translateY(30px);
        }
        to {
          opacity: 1;
          transform: translateY(0);
        }
      }
      .header {
        background: var(--dark-gradient);
        color: white;
        padding: 80px 40px;
        text-align: center;
        position: relative;
      }

      .header h1 {
        font-size: 3.5rem;
        margin-bottom: 20px;
        font-weight: 700;
        background: linear-gradient(45deg, #fff, #ecf0f1);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
      }

      .header p {
        font-size: 1.3rem;
        opacity: 0.9;
        max-width: 600px;
        margin: 0 auto;
      }

      .projects {
        padding: 80px 40px;
      }

      .section-title {
        text-align: center;
        margin-bottom: 60px;
      }

      .section-title h2 {
        font-size: 2.5rem;
        color: var(--text-primary);
        margin-bottom: 15px;
        position: relative;
      }

      .section-title h2::after {
        content: "";
        position: absolute;
        bottom: -10px;
        left: 50%;
        transform: translateX(-50%);
        width: 80px;
        height: 3px;
        background: var(--accent-color);
        border-radius: 2px;
      }

      .section-title p {
        color: var(--text-secondary);
        font-size: 1.1rem;
      }

      .projects-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
        gap: 30px;
        margin-bottom: 40px;
      }

      .project-card {
        background: white;
        border-radius: 12px;
        padding: 30px;
        box-shadow: var(--card-shadow);
        transition: all 0.3s ease;
        position: relative;
        overflow: hidden;
        border: 1px solid var(--border-light);
      }

      .project-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--accent-color);
        transform: scaleX(0);
        transition: transform 0.3s ease;
      }

      .project-card:hover::before {
        transform: scaleX(1);
      }

      .project-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--card-hover-shadow);
      }

      .project-icon {
        width: 50px;
        height: 50px;
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        margin-bottom: 20px;
        color: white;
        font-weight: 600;
      }

      .project-card:nth-child(4n + 1) .project-icon {
        background: var(--accent-color);
      }
      .project-card:nth-child(4n + 2) .project-icon {
        background: var(--success-color);
      }
      .project-card:nth-child(4n + 3) .project-icon {
        background: var(--warning-color);
      }
      .project-card:nth-child(4n + 4) .project-icon {
        background: var(--danger-color);
      }

      .project-title {
        font-size: 1.4rem;
        font-weight: 600;
        color: var(--text-primary);
        margin-bottom: 12px;
      }

      .project-description {
        color: var(--text-secondary);
        margin-bottom: 20px;
        line-height: 1.6;
        font-size: 0.95rem;
      }

      .tech-stack {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 25px;
      }

      .tech-tag {
        background: rgba(52, 152, 219, 0.08);
        color: var(--accent-color);
        padding: 6px 12px;
        border-radius: 15px;
        font-size: 0.8rem;
        font-weight: 500;
        border: 1px solid rgba(52, 152, 219, 0.15);
      }

      .project-links {
        display: flex;
        gap: 12px;
      }

      .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 20px;
        text-decoration: none;
        border-radius: 8px;
        font-weight: 500;
        font-size: 0.9rem;
        transition: all 0.3s ease;
        text-align: center;
        flex: 1;
        justify-content: center;
      }

      .btn-primary {
        background: var(--accent-color);
        color: white;
      }

      .btn-primary:hover {
        background: #2980b9;
        transform: translateY(-1px);
      }

      .btn-secondary {
        background: transparent;
        color: var(--text-secondary);
        border: 1px solid var(--border-light);
      }

      .btn-secondary:hover {
        background: var(--surface-gray);
        color: var(--text-primary);
      }

      .footer {
        background: var(--dark-gradient);
        color: white;
        text-align: center;
        padding: 40px;
      }

      .footer p {
        opacity: 0.8;
        font-size: 1rem;
      }

      /* Responsive Design */
      @media (max-width: 768px) {
        .header {
          padding: 60px 20px;
        }

        .header h1 {
          font-size: 2.5rem;
        }

        .projects {
          padding: 60px 20px;
        }

        .projects-grid {
          grid-template-columns: 1fr;
          gap: 20px;
        }

        .project-links {
          flex-direction: column;
        }
      }

      /* Scrollbar Styling */
      ::-webkit-scrollbar {
        width: 6px;
      }

      ::-webkit-scrollbar-track {
        background: #f1f1f1;
      }

      ::-webkit-scrollbar-thumb {
        background: var(--accent-color);
        border-radius: 3px;
      }

      ::-webkit-scrollbar-thumb:hover {
        background: #2980b9;
      }