/* Warm Earthy Theme: NO pure white (#fff) and NO pitch black (#000) */
    :root {
      --bg-body: #f2ece1;
      --bg-card: #faf4e8;
      --bg-card-alt: #f4ecdf;
      --bg-header: #ebe2d3;
      --bg-code-box: #e9decb;
      --border-color: #dfd3c0;
      --border-accent: #ccbea8;
      --text-primary: #332e29;
      --text-secondary: #5f574d;
      --text-muted: #82776a;
      --sage-accent: #446852;
      --sage-accent-dark: #32503e;
      --sage-light: #dde7df;
      --terracotta: #b86242;
      --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
      --font-mono: 'JetBrains Mono', monospace;
      --shadow-sm: 0 2px 6px rgba(51, 46, 41, 0.05);
      --shadow-md: 0 6px 18px rgba(51, 46, 41, 0.08);
      --radius: 12px;
    }

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

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-body);
      color: var(--text-primary);
      padding: 24px;
      line-height: 1.5;
    }

    /* Scrollbar */
    ::-webkit-scrollbar {
      width: 7px;
      height: 7px;
    }
    ::-webkit-scrollbar-track {
      background: var(--bg-body);
    }
    ::-webkit-scrollbar-thumb {
      background: var(--border-accent);
      border-radius: 9999px;
    }

    /* Page Header */
    .page-header {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px 24px;
      margin-bottom: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 14px;
      box-shadow: var(--shadow-sm);
    }

    .header-info h1 {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-primary);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .header-info p {
      font-size: 13px;
      color: var(--text-secondary);
      margin-top: 4px;
    }

    .header-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: var(--bg-header);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 9999px;
      font-size: 12px;
      font-weight: 700;
      color: var(--sage-accent);
    }

    /* Questions Feed */
    .questions-container {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .qa-card {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .qa-card:hover {
      border-color: var(--border-accent);
      box-shadow: var(--shadow-md);
    }

    /* TOP SECTION: Question & Copy Button */
    .question-section {
      padding: 20px;
      border-bottom: 1px solid var(--border-color);
      background-color: var(--bg-card);
    }

    .question-meta-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 12px;
      gap: 10px;
    }

    .question-pill-group {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }

    .question-num {
      background-color: var(--sage-accent);
      color: var(--bg-card);
      font-size: 11px;
      font-weight: 800;
      padding: 3px 9px;
      border-radius: 9999px;
      letter-spacing: 0.5px;
    }

    .topic-tag {
      background-color: var(--bg-card-alt);
      border: 1px solid var(--border-color);
      color: var(--text-secondary);
      font-size: 11px;
      font-weight: 700;
      padding: 3px 9px;
      border-radius: 9999px;
    }

    /* Copy Button */
    .copy-btn {
      background-color: var(--bg-card-alt);
      border: 1px solid var(--border-color);
      color: var(--text-secondary);
      font-family: var(--font-sans);
      font-size: 12px;
      font-weight: 700;
      padding: 6px 12px;
      border-radius: 8px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: all 0.15s ease;
    }

    .copy-btn:hover {
      background-color: var(--sage-accent);
      color: var(--bg-card);
      border-color: var(--sage-accent-dark);
    }

    .copy-btn.copied {
      background-color: var(--sage-accent);
      color: var(--bg-card);
      border-color: var(--sage-accent);
    }

    .question-heading {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 8px;
      line-height: 1.4;
    }

    .question-desc {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* BOTTOM SECTION: Code Solution Image Container */
    .solution-section {
      background-color: var(--bg-card-alt);
      padding: 18px 20px 20px 20px;
    }

    .solution-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 12px;
    }

    .solution-title {
      font-size: 12px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.8px;
      color: var(--sage-accent);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .image-hint {
      font-size: 11px;
      color: var(--text-muted);
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .image-container {
      position: relative;
      border-radius: 10px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      background-color: var(--bg-code-box);
      box-shadow: inset 0 0 10px rgba(51, 46, 41, 0.04);
      cursor: zoom-in;
    }

    /* Responsive Image */
    .solution-image {
      width: 100%;
      height: auto;
      max-height: 520px;
      object-fit: contain;
      display: block;
      transition: transform 0.2s ease;
    }

    .image-container:hover .solution-image {
      transform: scale(1.006);
    }

    /* Lightbox Modal */
    .lightbox-modal {
      display: none;
      position: fixed;
      inset: 0;
      background-color: rgba(43, 38, 33, 0.85);
      backdrop-filter: blur(4px);
      z-index: 999;
      padding: 24px;
      align-items: center;
      justify-content: center;
      flex-direction: column;
    }

    .lightbox-modal.active {
      display: flex;
    }

    .lightbox-content {
      position: relative;
      max-width: 95vw;
      max-height: 90vh;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .lightbox-img {
      max-width: 100%;
      max-height: 85vh;
      border-radius: 10px;
      border: 2px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .lightbox-close {
      position: absolute;
      top: -16px;
      right: -16px;
      width: 34px;
      height: 34px;
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 50%;
      color: var(--text-primary);
      font-size: 16px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    /* Toast Notification */
    .toast {
      position: fixed;
      bottom: 24px;
      right: 24px;
      background-color: var(--sage-accent);
      color: var(--bg-card);
      font-size: 13px;
      font-weight: 700;
      padding: 10px 18px;
      border-radius: 8px;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      gap: 8px;
      opacity: 0;
      transform: translateY(12px);
      transition: all 0.25s ease;
      pointer-events: none;
      z-index: 1000;
    }

    .toast.show {
      opacity: 1;
      transform: translateY(0);
    }

    @media (max-width: 640px) {
      body {
        padding: 14px;
      }
      .page-header {
        padding: 16px;
      }
      .question-section, .solution-section {
        padding: 14px;
      }
    }