:root {
      --primary-color: #ff6b81;
      --primary-dark: #e84393;
      --secondary-color: #a4b0be;
      --light-color: #f5f6fa;
      --dark-color: #2f3542;
      --text-color: #57606f;
      --white: #ffffff;
      --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
      --transition: all 0.3s ease;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }

    .portfolio-app {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      color: var(--dark-color);
    }

    .app-header {
      text-align: center;
      margin-bottom: 30px;
    }

    .app-title {
      font-size: 2.5rem;
      color: var(--primary-dark);
      margin-bottom: 10px;
      font-weight: 600;
    }

    .app-subtitle {
      font-size: 1rem;
      color: var(--text-color);
      margin-bottom: 30px;
    }

    .search-container {
      display: flex;
      justify-content: center;
      margin-bottom: 30px;
    }

    .search-box {
      display: flex;
      width: 100%;
      max-width: 600px;
      box-shadow: var(--shadow);
      border-radius: 30px;
      overflow: hidden;
    }

    #search-input {
      flex: 1;
      padding: 15px 20px;
      border: none;
      font-size: 1rem;
      outline: none;
    }

    .search-btn {
      background-color: var(--primary-color);
      color: white;
      border: none;
      padding: 0 25px;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 8px;
      font-weight: 500;
      transition: var(--transition);
    }

    .search-btn:hover {
      background-color: var(--primary-dark);
    }

    .search-btn svg {
      margin-right: 5px;
    }

    .view-controls {
      display: flex;
      justify-content: flex-end;
      margin-bottom: 20px;
      gap: 10px;
    }

    .view-btn {
      background: var(--light-color);
      border: none;
      width: 40px;
      height: 40px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: var(--transition);
    }

    .view-btn:hover {
      background: var(--secondary-color);
      color: white;
    }

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

    .filters {
      margin-bottom: 30px;
      overflow-x: auto;
      padding-bottom: 10px;
    }

    .filter-tags {
      display: flex;
      gap: 10px;
      padding: 5px 0;
    }

    .filter-tag {
      background: var(--light-color);
      border: none;
      padding: 8px 20px;
      border-radius: 20px;
      cursor: pointer;
      font-size: 0.9rem;
      white-space: nowrap;
      transition: var(--transition);
    }

    .filter-tag:hover {
      background: var(--secondary-color);
      color: white;
    }

    .filter-tag.active {
      background: var(--primary-color);
      color: white;
    }

    .content-container {
      min-height: 500px;
    }

    /* Grid View Styles */
    .portfolio-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 25px;
    }

    .project-card {
      position: relative;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: var(--transition);
      aspect-ratio: 3/4;
    }

    .project-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
    }

    .project-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .project-card:hover .project-image {
      transform: scale(1.05);
    }

    .card-overlay {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
      padding: 20px;
      color: white;
      opacity: 0;
      transition: var(--transition);
    }

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

    .card-title {
      font-size: 1.1rem;
      margin-bottom: 5px;
      font-weight: 500;
    }

    .card-author {
      font-size: 0.9rem;
      opacity: 0.8;
    }

    /* List View Styles */
    .portfolio-list {
      display: none;
    }

    .list-item {
      display: flex;
      margin-bottom: 20px;
      background: white;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: var(--transition);
    }

    .list-item:hover {
      transform: translateX(5px);
    }

    .list-image {
      width: 150px;
      height: 150px;
      object-fit: cover;
    }

    .list-content {
      padding: 20px;
      flex: 1;
    }

    .list-title {
      font-size: 1.2rem;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }

    .list-author {
      color: var(--text-color);
      margin-bottom: 10px;
      font-size: 0.9rem;
    }

    .list-description {
      color: var(--text-color);
      font-size: 0.9rem;
      line-height: 1.5;
      margin-bottom: 15px;
    }

    .list-tags {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .list-tag {
      background: var(--light-color);
      padding: 4px 10px;
      border-radius: 20px;
      font-size: 0.8rem;
      color: var(--text-color);
    }

    /* Lightbox Styles */
    .lightbox {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.9);
      display: none;
      align-items: center;
      justify-content: center;
      z-index: 1000;
    }

    .lightbox-content {
      position: relative;
      max-width: 90%;
      max-height: 90%;
    }

    .lightbox-image {
      max-width: 100%;
      max-height: 80vh;
      border-radius: 8px;
    }

    .lightbox-close {
      position: absolute;
      top: 20px;
      right: 20px;
      background: var(--primary-color);
      color: white;
      border: none;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      font-size: 1.2rem;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .lightbox-info {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(0, 0, 0, 0.7);
      color: white;
      padding: 20px;
      border-bottom-left-radius: 8px;
      border-bottom-right-radius: 8px;
    }

    /* Loading Animation */
    .loading {
      text-align: center;
      padding: 30px;
      display: none;
    }

    .spinner {
      width: 40px;
      height: 40px;
      margin: 0 auto 15px;
      border: 4px solid rgba(255, 107, 129, 0.3);
      border-radius: 50%;
      border-top-color: var(--primary-color);
      animation: spin 1s ease-in-out infinite;
    }

    @keyframes spin {
      to {
        transform: rotate(360deg);
      }
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 15px;
      }

      .list-item {
        flex-direction: column;
      }

      .list-image {
        width: 100%;
        height: 200px;
      }
    }