/* ===== VARIABLES ===== */
    :root {
      --clr-primary:    #007cba;
      --clr-primary-d:  #005a8a;
      --clr-secondary:  #666666;
      --clr-text:       #333333;
      --clr-bg-light:   #f4f4f4;
      --clr-bg-lighter: #f9f9f9;
      --clr-border:     #dddddd;
      --radius:         5px;
      --spacing:        1rem;
      --shadow-light:   0 2px 4px rgba(0, 0, 0, 0.05);
      --shadow-hover:   0 4px 12px rgba(0, 124, 186, 0.15);
    }

    /* ===== SAFE AREA & iOS NOTCH SUPPORT ===== */
    html {
      background-color: var(--clr-bg-light);
    }
    body {
      padding-top:    env(safe-area-inset-top);
      padding-right:  env(safe-area-inset-right);
      padding-bottom: env(safe-area-inset-bottom);
      padding-left:   env(safe-area-inset-left);
      margin: 0;
      font-family: Arial, sans-serif;
      line-height: 1.6;
      color: var(--clr-text);
      background: #fff;
    }

    /* ===== GLOBAL MEDIA RESET ===== */
    img, video, iframe {
      display: block;
      max-width: 100%;
      height: auto;
    }

    /* ===== MAIN CONTAINER ===== */
    .site,
    #content.site-content.content-area {
      max-width: 1200px;
      margin: 0 auto;
      padding: calc(var(--spacing) * 2);
    }

    /* ===== SITE HEADER ===== */
    .site-header {
      background: var(--clr-bg-light);
      padding: var(--spacing);
      margin-bottom: calc(var(--spacing) * 2);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
    }
    .site-title a {
      font-size: 1.5rem;
      font-weight: bold;
      color: var(--clr-text);
      text-decoration: none;
    }
    .header-categories {
      display: flex;
      flex-wrap: wrap;
      gap: var(--spacing);
      margin-top: 0.5rem;
    }
    .header-categories a {
      color: var(--clr-secondary);
      text-decoration: none;
      transition: color 0.2s;
    }
    .header-categories a:hover {
      color: var(--clr-primary);
    }

    /* ===== BREADCRUMBS ===== */
    .breadcrumbs {
      font-size: 0.9rem;
      color: var(--clr-secondary);
      margin-bottom: var(--spacing);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 0.5rem;
    }
    .breadcrumbs a {
      color: var(--clr-primary);
      text-decoration: none;
      transition: color 0.2s;
    }
    .breadcrumbs a:hover {
      color: var(--clr-primary-d);
    }
    .breadcrumbs .separator {
      user-select: none;
    }
    .breadcrumbs .current {
      font-weight: bold;
      color: var(--clr-text);
    }

    /* ===== ARTICLE ===== */
    article {
      margin-bottom: calc(var(--spacing) * 2);
    }
    h1 {
      font-size: 2rem;
      color: var(--clr-text);
      border-bottom: 2px solid var(--clr-primary);
      padding-bottom: 0.5rem;
      margin-bottom: var(--spacing);
    }
    h2 {
      font-size: 1.4rem;
      color: #555;
      margin: calc(var(--spacing) * 1.5) 0 var(--spacing);
    }
    .meta-date {
      font-size: 0.85rem;
      color: var(--clr-secondary);
      margin-bottom: var(--spacing);
    }

    /* ===== IMAGES ===== */
    figure {
      margin: var(--spacing) 0;
      text-align: center;
    }
    figure img {
      width: 100%;
      height: auto;
      border-radius: var(--radius);
    }
    figcaption {
      margin-top: 0.5rem;
      font-style: italic;
      color: var(--clr-secondary);
    }

    /* ===== AUTHOR CONTACT ===== */
    .author-contact {
      background: var(--clr-bg-lighter);
      padding: var(--spacing);
      border-left: 4px solid var(--clr-primary);
      margin: var(--spacing) 0;
    }

    /* ===== COMMENTS ===== */
    .comments {
      background: var(--clr-bg-light);
      padding: var(--spacing);
      margin: var(--spacing) 0;
      border-radius: var(--radius);
    }
    .comments textarea {
      width: 100%;
      padding: 0.75rem;
      border: 1px solid var(--clr-border);
      border-radius: 3px;
      resize: vertical;
    }
    .comments button {
      background: var(--clr-primary);
      color: #fff;
      padding: 0.75rem 1.5rem;
      border: none;
      border-radius: 3px;
      cursor: pointer;
      transition: background 0.2s;
    }
    .comments button:hover {
      background: var(--clr-primary-d);
    }

    /* ===== SIDEBAR CATEGORIES ===== */
    .sidebar-categories {
      background: var(--clr-bg-lighter);
      padding: var(--spacing);
      margin: var(--spacing) 0;
      border-radius: var(--radius);
    }
    .categories-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 0.75rem;
    }
    .category-item a {
      display: block;
      padding: 0.75rem;
      background: #fff;
      border-radius: 3px;
      text-decoration: none;
      color: var(--clr-text);
      text-align: center;
      border: 1px solid var(--clr-border);
      transition: background 0.2s, color 0.2s;
    }
    .category-item a:hover {
      background: var(--clr-primary);
      color: #fff;
    }

    /* ===== NAVIGATION ===== */
    nav ul {
      list-style: none;
      padding: 0;
    }
    nav li {
      margin-bottom: 0.5rem;
    }
    nav a {
      color: var(--clr-primary);
      text-decoration: none;
      transition: color 0.2s;
    }
    nav a:hover {
      text-decoration: underline;
    }

    /* ===== TAGS CLOUD ===== */
    .tags-cloud-section {
      margin: calc(var(--spacing) * 2) 0;
      padding: var(--spacing);
      background: #fff;
      border-radius: var(--radius);
      border: 1px solid var(--clr-border);
      box-shadow: var(--shadow-light);
    }
    .tags-cloud-section h3,
    .tag-results h3 {
      margin-bottom: 1rem;
      color: var(--clr-text);
      font-size: 1.2rem;
      border-bottom: 2px solid var(--clr-primary);
      padding-bottom: 0.5rem;
    }
    .tags-container {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
    }
    .tag-link {
      display: inline-flex;
      align-items: center;
      padding: 0.5rem 1rem;
      background: var(--clr-primary);
      color: #fff;
      text-decoration: none;
      border: 1px solid var(--clr-primary-d);
      border-radius: 20px;
      transition: transform 0.2s, box-shadow 0.2s;
      white-space: nowrap;
      font-size: 0.875rem;
    }
    .tag-link:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
    }
    .tag-link.active {
      font-weight: 600;
    }

    /* ===== TAG RESULTS ===== */
    .tag-results {
      margin-bottom: calc(var(--spacing) * 2);
    }
    .tag-results h3 {
      color: var(--clr-primary);
      font-size: 1.3rem;
    }
    .tag-results-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 1rem;
    }
    .tag-result-item {
      background: #fff;
      padding: var(--spacing);
      border: 1px solid var(--clr-border);
      border-radius: var(--radius);
      box-shadow: var(--shadow-light);
      transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    }
    .tag-result-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      border-color: var(--clr-primary);
    }
    .tag-result-item a {
      color: var(--clr-text);
      text-decoration: none;
      font-weight: 500;
      line-height: 1.4;
    }
    .tag-result-item a:hover {
      color: var(--clr-primary);
    }

    /* ===== BACK TO ARTICLE ===== */
    .back-to-article {
      text-align: center;
      padding-top: var(--spacing);
      border-top: 1px solid var(--clr-border);
    }
    .back-to-article a {
      display: inline-block;
      padding: 0.75rem 1.5rem;
      border: 1px solid var(--clr-border);
      border-radius: var(--radius);
      text-decoration: none;
      color: var(--clr-secondary);
      font-size: 0.9rem;
      transition: background 0.2s, color 0.2s, border-color 0.2s;
    }
    .back-to-article a:hover {
      background: #f8f9fa;
      color: var(--clr-primary);
      border-color: var(--clr-primary);
    }

    /* ===== FOOTER ===== */
    .site-footer {
      background: #333;
      color: #fff;
      text-align: center;
      padding: calc(var(--spacing) * 1.5);
      margin-top: calc(var(--spacing) * 2);
    }
    .site-footer a {
      color: #ccc;
    }
    .site-footer a:hover {
      color: #fff;
    }

    /* ===== RESPONSIVE ===== */
    @media (max-width: 768px) {
      .site {
        padding: var(--spacing);
      }
      .header-categories {
        justify-content: center;
      }
      .tag-results-list {
        grid-template-columns: 1fr;
      }
      /* гарантируем отсутствие боковых отступов */
      html, body {
        margin: 0;
        padding: 0;
      }
      #content.site-content.content-area {
        max-width: 100%;
        padding: var(--spacing);
      }
    }
    @media (max-width: 480px) {
      h1 {
        font-size: 1.6rem;
      }
      .tag-link {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
      }
      .back-to-article a {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
      }
      .site {
        padding: 0.5rem;
      }
      #content.site-content.content-area {
        padding: 0.5rem;
      }
    }