:root {
      --bg-color: #eaeaea;
      --card-bg: #ffffff;
      --text-color: #1f2937;
      --text-secondary: #6b7280;
      --accent-color: #2563eb;
      --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    [data-theme="dark"] {
      --bg-color: #1f2937;
      --card-bg: #374151;
      --text-color: #f9fafb;
      --text-secondary: #9ca3af;
      --accent-color: #60a5fa;
      --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background-color: var(--bg-color);
      color: var(--text-color);
      transition: background-color 0.3s, color 0.3s;
      min-height: 100vh;
    }

    nav {
      background-color: var(--card-bg);
      box-shadow: var(--shadow);
      padding: 1rem 2rem;
    }

    .nav-container {
      max-width: 1024px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .nav-container h1 {
      margin: 0;
      font-size: 1.5rem;
      font-weight: 700;
    }

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

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

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--accent-color);
    }

    .theme-toggle {
      background: none;
      border: none;
      cursor: pointer;
      padding: 0.5rem;
      border-radius: 50%;
      background-color: var(--text-secondary);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .theme-toggle svg {
      width: 1.25rem;
      height: 1.25rem;
      fill: var(--card-bg);
    }

    .container {
      max-width: 1024px;
      margin: 2rem auto;
      padding: 0 1rem;
    }

    .page {
      display: none;
    }

    .page.active {
      display: block;
    }

    .blog-post {
      background-color: var(--card-bg);
      padding: 1.5rem;
      border-radius: 0.5rem;
      box-shadow: var(--shadow);
      margin-bottom: 1.5rem;
      transition: box-shadow 0.3s;
    }

    .blog-post:hover {
      box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    }

    .blog-post h2 {
      margin: 0 0 0.5rem;
      font-size: 1.25rem;
      font-weight: 600;
    }

    .blog-post .date {
      color: var(--text-secondary);
      font-size: 0.875rem;
      margin-bottom: 0.5rem;
    }

    .blog-post p {
      margin: 0 0 1rem;
      line-height: 1.5;
    }

    .blog-post a {
      color: var(--accent-color);
      text-decoration: none;
      font-weight: 500;
    }

    .blog-post a:hover {
      text-decoration: underline;
    }

    .contact-form {
      background-color: var(--card-bg);
      padding: 1.5rem;
      border-radius: 0.5rem;
      box-shadow: var(--shadow);
    }

    .contact-form label {
      display: block;
      font-size: 0.875rem;
      font-weight: 500;
      margin-bottom: 0.25rem;
      color: var(--text-color);
    }

    .contact-form input,
    .contact-form textarea {
      width: 100%;
      padding: 0.5rem;
      border: 1px solid var(--text-secondary);
      border-radius: 0.25rem;
      background-color: var(--card-bg);
      color: var(--text-color);
      margin-bottom: 1rem;
      font-size: 1rem;
    }

    .contact-form textarea {
      resize: vertical;
      min-height: 100px;
    }

    .contact-form button {
      background-color: var(--accent-color);
      color: var(--card-bg);
      padding: 0.5rem 1rem;
      border: none;
      border-radius: 0.25rem;
      cursor: pointer;
      font-weight: 500;
    }

    .contact-form button:hover {
      background-color: #1d4ed8;
    }

        .login-form {
      background-color: var(--card-bg);
      padding: 2rem;
      border-radius: 0.5rem;
      box-shadow: var(--shadow);
      width: 100%;
    }

    .login-form h2 {
      margin: 0 0 1.5rem;
      font-size: 1.5rem;
      font-weight: 600;
      text-align: center;
    }

    .login-form label {
      display: block;
      font-size: 0.875rem;
      font-weight: 500;
      margin-bottom: 0.25rem;
      color: var(--text-color);
    }

    .login-form input {
      width: 100%;
      padding: 0.5rem;
      border: 1px solid var(--text-secondary);
      border-radius: 0.25rem;
      background-color: var(--card-bg);
      color: var(--text-color);
      margin-bottom: 1rem;
      font-size: 1rem;
    }

    .login-form button {
      background-color: var(--accent-color);
      color: var(--card-bg);
      padding: 0.5rem 1rem;
      border: none;
      border-radius: 0.25rem;
      cursor: pointer;
      font-weight: 500;
      width: 100%;
      font-size: 1rem;
    }

    .login-form button:hover {
      background-color: #1d4ed8;
    }

    .login-form p {
      margin: 1rem 0 0;
      text-align: center;
      font-size: 0.875rem;
    }

    .login-form a {
      color: var(--accent-color);
      text-decoration: none;
      font-weight: 500;
    }

    .login-form a:hover {
      text-decoration: underline;
    }

    .posts-bucket button {
      background-color: var(--accent-color);
      color: var(--card-bg);
      padding: 0.5rem 1rem;
      border: none;
      border-radius: 0.25rem;
      cursor: pointer;
      font-weight: 500;
    }

    .posts-bucket button:hover {
      background-color: #1d4ed8;
    }