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

      :root {
        --bg-color: #ffffff;
        --text-color: #000000;
        --link-color: #0066cc;
        --border-color: #cccccc;
      }

      @media (prefers-color-scheme: dark) {
        :root {
          --bg-color: #1a1a1a;
          --text-color: #ffffff;
          --link-color: #4da6ff;
          --border-color: #444444;
        }
      }

      [data-theme="dark"] {
        --bg-color: #1a1a1a;
        --text-color: #ffffff;
        --link-color: #4da6ff;
        --border-color: #444444;
      }

      [data-theme="light"] {
        --bg-color: #ffffff;
        --text-color: #000000;
        --link-color: #0066cc;
        --border-color: #cccccc;
      }

      body {
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        line-height: 1.6;
        color: var(--text-color);
        background-color: var(--bg-color);
        transition: background-color 0.3s, color 0.3s;
      }

      header {
        padding: 1rem;
        border-bottom: 1px solid var(--border-color);
        margin-bottom: 2rem;
      }

      .nav {
        max-width: 1200px;
        margin: 0 auto;
        position: relative;
      }

      .nav-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
      }

      .nav-brand a {
        color: var(--text-color);
        text-decoration: none;
        font-weight: bold;
        font-size: 1.2rem;
      }

      .nav-toggle {
        display: none;
        flex-direction: column;
        background: none;
        border: none;
        cursor: pointer;
        padding: 0.5rem;
        margin-right: 1rem;
      }

      .hamburger-line {
        width: 25px;
        height: 3px;
        background-color: var(--text-color);
        margin: 3px 0;
        transition: 0.3s;
      }

      .nav-desktop {
        display: flex;
        align-items: center;
        gap: 1rem;
      }

      .nav-menu {
        display: none;
        padding: 1rem 0;
        border-top: 1px solid var(--border-color);
        margin-top: 1rem;
      }

      .nav-link {
        color: var(--link-color);
        text-decoration: none;
        font-weight: 500;
        padding: 0.5rem;
        border-radius: 4px;
        transition: background-color 0.2s;
      }

      .nav-link:hover {
        background-color: var(--border-color);
        text-decoration: none;
      }

      .theme-toggle {
        background: none;
        border: 1px solid var(--border-color);
        color: var(--text-color);
        cursor: pointer;
        font-size: 1rem;
      }

      main {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 1rem;
      }

      h1, h2, h3, h4 {
        margin-bottom: 1rem;
        color: var(--text-color);
      }

      h4 {
        font-size: 1.1rem;
        margin-bottom: 0.75rem;
      }

      img {
        max-width: 100%;
        height: auto;
        margin: 1rem 0;
        border-radius: 8px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      }

      blockquote {
        margin: 1.5rem 0;
        padding: 1rem 1.5rem;
        border-left: 4px solid var(--link-color);
        background: rgba(0, 0, 0, 0.05);
        border-radius: 0 8px 8px 0;
        font-style: italic;
        color: var(--text-color);
      }

      p {
        margin-bottom: 1rem;
      }

      a {
        color: var(--link-color);
      }

      ul, ol {
        margin-bottom: 1rem;
        padding-left: 2rem;
      }

      pre {
        background: var(--border-color);
        border-radius: 8px;
        padding: 1rem;
        margin: 1rem 0;
        overflow-x: auto;
        max-width: 100%;
      }

      code {
        font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
        font-size: 0.9em;
      }

      pre code {
        background: none;
        padding: 0;
        white-space: pre;
      }

      :not(pre) > code {
        background: var(--border-color);
        padding: 0.2em 0.4em;
        border-radius: 4px;
        font-size: 0.85em;
      }

      section {
        margin-bottom: 3rem;
      }

      article {
        margin-bottom: 2rem;
        padding-bottom: 1rem;
        border-bottom: 1px solid var(--border-color);
      }

      /* Photo Gallery Styles */
      .gallery-preview {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 2rem;
        padding: 1rem;
        border: 1px solid var(--border-color);
        border-radius: 8px;
      }

      .gallery-preview-image {
        width: 200px;
        height: 150px;
        object-fit: cover;
        border-radius: 4px;
        margin-top: 0.5rem;
      }

      .gallery-description {
        font-size: 1.1rem;
        color: var(--text-color);
        margin: 1rem 0 2rem 0;
        line-height: 1.5;
        font-style: italic;
      }

      .photo-gallery {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 1rem;
        margin-bottom: 2rem;
      }

      .photo-item {
        position: relative;
        aspect-ratio: 4/3;
        overflow: hidden;
        border-radius: 8px;
        border: 1px solid var(--border-color);
      }

      .gallery-image {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.3s ease;
      }

      .photo-link:hover .gallery-image {
        transform: scale(1.05);
      }

      .back-link {
        display: inline-block;
        margin-top: 2rem;
        color: var(--link-color);
        text-decoration: none;
        font-weight: 500;
      }

      .back-link:hover {
        text-decoration: underline;
      }

      /* Individual Photo Viewer Styles */
      .photo-viewer {
        max-width: 100%;
      }

      .photo-nav {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 1rem;
        padding-bottom: 1rem;
        border-bottom: 1px solid var(--border-color);
      }

      .back-to-gallery {
        color: var(--link-color);
        text-decoration: none;
        font-weight: 500;
      }

      .back-to-gallery:hover {
        text-decoration: underline;
      }

      .photo-counter {
        color: var(--text-color);
        font-size: 0.9rem;
        opacity: 0.8;
      }

      .photo-display {
        display: flex;
        align-items: center;
        gap: 1rem;
        margin-bottom: 2rem;
        min-height: 70vh;
      }

      .photo-main {
        flex: 1;
        display: flex;
        justify-content: center;
        align-items: center;
      }

      .full-photo {
        max-width: 100%;
        max-height: 70vh;
        width: auto;
        height: auto;
        object-fit: contain;
        border-radius: 8px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      }

      .nav-prev, .nav-next {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 60px;
        height: 60px;
        background: rgba(0, 0, 0, 0.1);
        border: 1px solid var(--border-color);
        border-radius: 50%;
        color: var(--text-color);
        text-decoration: none;
        transition: all 0.3s ease;
        flex-shrink: 0;
      }

      .nav-prev span, .nav-next span {
        font-size: 3rem;
        line-height: 1;
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        height: 100%;
        transform: translateY(-0.12em);
      }

      .nav-prev:hover, .nav-next:hover {
        background: rgba(0, 0, 0, 0.2);
        transform: scale(1.1);
      }

      .photo-info {
        text-align: center;
        padding: 1rem;
        background: rgba(0, 0, 0, 0.05);
        border-radius: 8px;
        margin-top: 1rem;
      }

      .photo-info h2 {
        margin: 0;
        font-size: 1.1rem;
        color: var(--text-color);
      }

      @media (max-width: 768px) {
        nav {
          flex-direction: column;
          gap: 1rem;
        }
        
        main {
          padding: 0 0.5rem;
        }

        .photo-gallery {
          grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        }

        .gallery-preview-image {
          width: 150px;
          height: 112px;
        }

        .photo-display {
          flex-direction: column;
          gap: 0.5rem;
          min-height: 50vh;
        }

        .nav-prev, .nav-next {
          width: 50px;
          height: 50px;
        }

        .nav-prev span, .nav-next span {
          font-size: 2rem;
          transform: translateY(-0.08em);
        }

        .photo-nav {
          flex-direction: column;
          gap: 0.5rem;
          align-items: center;
          text-align: center;
        }
      }

      /* Footer Styles */
      footer {
        margin-top: 4rem;
        padding: 2rem 1rem;
        border-top: 1px solid var(--border-color);
        background: var(--bg-color);
      }

      .footer-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
        max-width: 1200px;
        margin: 0 auto;
      }

      .footer-links a {
        color: var(--link-color);
        text-decoration: none;
        font-weight: 500;
      }

      .footer-links a:hover {
        text-decoration: underline;
      }

      .social-links {
        display: flex;
        gap: 1.5rem;
      }

      .social-links a {
        color: var(--text-color);
        transition: color 0.3s ease, transform 0.3s ease;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0.5rem;
        border-radius: 50%;
        background: rgba(0, 0, 0, 0.05);
      }

      .social-links a:hover {
        color: var(--link-color);
        transform: translateY(-2px);
        background: rgba(0, 0, 0, 0.1);
      }

      .social-links svg {
        width: 24px;
        height: 24px;
      }

      @media (max-width: 480px) {
        header {
          padding: 0.5rem;
        }
        
        nav a {
          margin-right: 0.5rem;
          font-size: 0.9rem;
        }

        footer {
          margin-top: 2rem;
          padding: 1.5rem 0.5rem;
        }

        .footer-content {
          flex-direction: column;
          gap: 1rem;
        }

        .social-links {
          gap: 1rem;
        }

        .social-links svg {
          width: 20px;
          height: 20px;
        }
      }

      /* Mobile Navigation */
      @media (max-width: 768px) {
        .nav-toggle {
          display: flex;
        }

        .nav-desktop {
          display: none;
        }

        .nav-menu {
          position: absolute;
          top: 100%;
          left: 0;
          right: 0;
          background-color: var(--bg-color);
          border-top: 1px solid var(--border-color);
          box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
          transform: translateY(-100%);
          opacity: 0;
          visibility: hidden;
          transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
          z-index: 1000;
          display: flex;
          flex-direction: column;
          gap: 0;
          padding: 1rem 0;
        }

        .nav-menu.active {
          transform: translateY(0);
          opacity: 1;
          visibility: visible;
        }

        .nav-menu .nav-link {
          padding: 0.75rem 1rem;
          border-bottom: 1px solid var(--border-color);
          text-align: left;
          width: 100%;
          display: block;
        }

        .nav-menu .nav-link:last-child {
          border-bottom: none;
        }

        /* Hamburger animation */
        .nav-toggle.active .hamburger-line:nth-child(1) {
          transform: rotate(45deg) translate(5px, 5px);
        }

        .nav-toggle.active .hamburger-line:nth-child(2) {
          opacity: 0;
        }

        .nav-toggle.active .hamburger-line:nth-child(3) {
          transform: rotate(-45deg) translate(7px, -6px);
        }
      }