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

    /* CSS Variables - Dark Theme */
    :root {
      --primary-color: #ffffff;
      --accent-color: #3b82f6;
      --background-color: #0a0a0a;
      --card-bg: #111111;
      --card-hover-bg: #161616;
      --text-color: #e5e5e5;
      --secondary-text: #a1a1aa;
      --border-color: #27272a;
      --code-bg: #1c1c1c;
      --shadow-color: rgba(59, 130, 246, 0.15);
      --hover-bg: #1a1a1a;
    }

    /* Base Styles */
    body {
      font-family: "Playfair Display", serif;
      background-color: var(--background-color);
      color: var(--text-color);
      line-height: 1.6;
      font-size: 16px;
      font-weight: 400;
      transition: background-color 0.3s ease, color 0.3s ease;
    }

    .container {
      max-width: 720px;
      margin: 0 auto;
      padding: 2rem 1.5rem;
    }

    /* Header Styles */
    .header-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 2rem;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 1rem;
    }

    .header-left {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      border: 2px solid var(--border-color);
      object-fit: cover;
      transition: border-color 0.2s ease;
    }

    .avatar:hover {
      border-color: var(--accent-color);
    }

    .site-title {
      font-size: 1.25rem;
      font-weight: 600;
      color: var(--primary-color);
      margin: 0;
    }

    .header-nav {
      font-size: 1rem;
      color: var(--text-color);
      text-decoration: none;
      padding: 0.5rem 1rem;
      border-radius: 6px;
      transition: all 0.2s ease;
      border: 1px solid transparent;
    }

    .header-nav:hover {
      color: var(--accent-color);
      background-color: var(--card-bg);
      border-color: var(--border-color);
    }

    header {
      text-align: left;
      /* margin-bottom: 3rem; */
      padding: 4rem 0 2rem;
    }

    header h1 {
      font-size: 2rem;
      font-weight: 700;
      letter-spacing: -0.3px;
      color: var(--primary-color);
      margin-bottom: 0.5rem;
    }

    header p {
      font-size: 1.1rem;
      color: var(--secondary-text);
      font-weight: 400;
      margin-bottom: 2rem;
    }

    /* Dropdown Navigation */
    .dropdown-nav {
      margin-bottom: 2rem;
      display: flex;
      justify-content: end;
    }

    .dropdown {
      position: relative;
      display: inline-block;
    }

    .dropdown-toggle {
      background: var(--card-bg);
      border: 2px solid var(--border-color);
      border-radius: 8px;
      padding: 12px 20px;
      font-family: inherit;
      font-size: 1rem;
      color: var(--text-color);
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: 200px;
      justify-content: space-between;
      transition: all 0.3s ease;
    }

    .dropdown-toggle:hover {
      border-color: var(--accent-color);
      background: var(--card-hover-bg);
    }

    .dropdown-toggle:focus {
      outline: none;
      border-color: var(--accent-color);
      box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    }

    .dropdown-arrow {
      font-size: 0.8rem;
      transition: transform 0.3s ease;
    }

    .dropdown.open .dropdown-arrow {
      transform: rotate(180deg);
    }

    .dropdown-menu {
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      background: var(--card-bg);
      border: 2px solid var(--border-color);
      border-top: none;
      border-radius: 0 0 8px 8px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(-10px);
      transition: all 0.3s ease;
      z-index: 1000;
      box-shadow: 0 12px 24px var(--shadow-color);
    }

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

    .dropdown-item {
      display: block;
      width: 100%;
      padding: 12px 20px;
      background: none;
      border: none;
      text-align: left;
      font-family: inherit;
      font-size: 1rem;
      color: var(--text-color);
      cursor: pointer;
      transition: background-color 0.2s ease;
    }

    .dropdown-item:hover {
      background: var(--card-hover-bg);
    }

    .dropdown-item.active {
      background: var(--accent-color);
      color: white;
    }

    /* Content Sections */
    .content-section {
      display: none;
    }

    .content-section.active {
      display: block;
    }

    /* Post Styles */
    .post {
      margin-bottom: 3rem;
      padding: 1.5rem;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      background-color: var(--card-bg);
      transition: all 0.3s ease;
    }

    .post:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 24px var(--shadow-color);
      background-color: var(--card-hover-bg);
      border-color: var(--accent-color);
    }

    .post-title {
      font-size: 1.5rem;
      font-weight: 600;
      margin-bottom: 0.75rem;
      color: var(--primary-color);
      letter-spacing: -0.3px;
    }

    .post-title a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }

    .post-title a:hover {
      color: var(--accent-color);
    }

    .post-meta {
      font-size: 0.85rem;
      color: var(--secondary-text);
      margin-bottom: 1rem;
      font-family: 'Fira Code', monospace;
    }

    .post-excerpt {
      margin-bottom: 1rem;
      color: var(--text-color);
      font-size: 1rem;
      line-height: 1.7;
    }

    .read-more {
      font-size: 0.9rem;
      color: var(--accent-color);
      text-decoration: none;
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      transition: all 0.2s ease;
    }

    .read-more:hover {
      color: #60a5fa;
    }

    .read-more:after {
      content: "→";
      margin-left: 4px;
      transition: transform 0.2s ease;
    }

    .read-more:hover:after {
      transform: translateX(4px);
    }

    /* Code Styles */
    code {
      font-family: 'Fira Code', monospace;
      background-color: var(--code-bg);
      color: #93c5fd;
      padding: 0.2em 0.4em;
      border-radius: 4px;
      font-size: 0.85em;
      border: 1px solid var(--border-color);
    }

    /* Footer */
    footer {
      text-align: center;
      margin-top: 4rem;
      padding-top: 2rem;
      border-top: 1px solid var(--border-color);
      color: var(--secondary-text);
      font-size: 0.85rem;
    }

    footer code {
      background: var(--code-bg);
      padding: 2px 6px;
      border-radius: 4px;
      font-size: 0.9rem;
    }

    /* Responsive Design */
    @media (max-width: 640px) {
      .container {
        padding: 1.5rem 1rem;
      }

      .header-top {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
      }

      header {
        padding: 2.5rem 0 1.5rem;
      }

      header h1 {
        font-size: 1.75rem;
      }

      header p {
        font-size: 1rem;
      }

      .post {
        padding: 1.25rem;
      }

      .dropdown-toggle {
        min-width: 180px;
        padding: 10px 16px;
      }
    }