body {
    font-family: 'Fira Mono', 'Consolas', 'Menlo', monospace;
    background: #fff;
    color: #23232e;
    margin: 0;
    padding: 0;
    line-height: 1.6;
  }
  
  header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 2rem 2rem 1rem 2rem;
    max-width: 1100px;
    margin: 0 auto;
  }
  
  .header-title {
    font-size: 2.2rem;
    font-weight: bold;
    letter-spacing: 1px;
  }
  
  .header-buttons {
    display: flex;
    gap: 2rem;
    align-items: baseline;
  }
  
  .header-thoughts,
  .header-about,
  .header-subscribe {
    font-size: 0.9rem;
    font-weight: normal;
    padding-bottom: 2px;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: border-color 0.2s;
    color: #23232e;
    text-decoration: none;
    font-family: inherit;
  }
  
  .header-thoughts:hover,
  .header-about:hover,
  .header-subscribe:hover {
    border-bottom: 3px solid #4CAF50;
  }
  
  .container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
  }
  
  .main-content {
    background: #fafafa;
    border-radius: 8px;
    padding: 2rem;
    min-height: 250px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
  }
  
  .post {
    display: none;
  }
  
  .post.active {
    display: block;
  }
  
  .post h2 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-top: 0;
    margin-bottom: 0.5rem;
  }
  
  .post-date {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 1.5rem;
    font-style: italic;
  }
  
  .post-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1rem 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  }
  
  .image-caption {
    font-size: 0.85rem;
    color: #666;
    font-style: italic;
    text-align: center;
    margin: -0.5rem 0 1rem 0;
    line-height: 1.4;
  }
  
  .post-content {
    line-height: 1.8;
  }
  
  .post-content p {
    margin-bottom: 1rem;
  }
  
  .thoughts-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .thought-item {
    padding: 1.5rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    cursor: pointer;
    transition: all 0.2s ease;
    border-left: 4px solid transparent;
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }
  
  .thought-item:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    border-left: 4px solid #2196F3;
    transform: translateY(-2px);
  }
  
  .thought-date {
    font-size: 0.8rem;
    color: #888;
    font-style: italic;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-width: 80px;
    flex-shrink: 0;
  }
  
  .thought-title {
    font-size: 1.1rem;
    font-weight: bold;
    color: #23232e;
    line-height: 1.4;
    flex: 1;
  }
  
  .subscribe-form {
    margin: 2rem 0;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
  }
  
  .subscribe-form input[type="email"] {
    flex: 1;
    min-width: 250px;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
  }
  
  .subscribe-form button {
    padding: 0.8rem 1.5rem;
    background: #2196F3;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
  }
  
  .subscribe-form button:hover {
    background: #1976D2;
  }
  
  .unsubscribe-form {
    margin: 2rem 0;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
  }
  
  .unsubscribe-form input[type="email"] {
    flex: 1;
    min-width: 250px;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
  }
  
  .unsubscribe-form button {
    padding: 0.8rem 1.5rem;
    background: #e53935;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
  }
  
  .unsubscribe-form button:hover {
    background: #c62828;
  }
  
  .message {
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 4px;
    font-weight: bold;
  }
  
  .message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
  }
  
  .message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
  }
  
  .signature {
    text-align: center;
    padding: 2rem;
    color: #666;
    font-size: 0.9rem;
  }
  
  .signature a {
    color: #2196F3;
    text-decoration: none;
  }
  
  .signature a:hover {
    color: #2196F3;
  }
  
  /* Post Navigation Styles */
  .post-navigation {
    display: flex;
    flex-direction: row;
    gap: 1rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #eee;
    justify-content: space-between;
    flex-wrap: nowrap;
  }
  
  .nav-btn {
    flex: 1 1 0;
    box-sizing: border-box;
    text-align: center;
    white-space: normal;
    line-height: 1.4;
    padding: 0.8rem 1.2rem;
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    color: #333;
    text-decoration: none;
    display: inline-block;
  }
  
  .nav-btn:hover {
    background: #2196F3;
    color: white;
    border-color: #2196F3;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(33, 150, 243, 0.3);
  }
  
  .prev-btn {
    text-align: left;
  }
  
  .next-btn {
    text-align: right;
    margin-left: auto;
  }
  
  /* Single button styling when only one exists */
  .post-navigation .nav-btn:only-child {
    margin: 0 auto;
    max-width: 200px;
  }
  
  @media (max-width: 700px) {
    .container {
      padding: 1rem;
    }
    
    .main-content {
      padding: 1.5rem;
    }
    
    header {
      padding: 1.5rem 1rem 1rem 1rem;
      flex-direction: column;
      gap: 1rem;
      align-items: center;
    }
    
    .header-title {
      font-size: 1.8rem;
    }
    
    .post h2 {
      font-size: 1.3rem;
    }
    
    .post-navigation {
      flex-direction: row !important;
      gap: 0.8rem;
    }
  }
  
  @media (max-width: 480px) {
    .container {
      padding: 0.5rem;
    }
    
    .main-content {
      padding: 1rem;
    }
    
    .post-image {
      margin: 0.5rem 0;
    }
  }