.hb-wrap { max-width: 1120px; margin: 0 auto; padding: 28px 20px 56px; }
    .hb-kicker { color: #4b5563; font-size: 13px; font-weight: 700; text-transform: uppercase; }
    .hb-hero { display: grid; gap: 14px; border-bottom: 1px solid #d6dee8; padding-bottom: 22px; }
    .hb-hero h1 { margin: 0; font-size: 34px; line-height: 1.08; }
    .hb-lead { max-width: 820px; color: #334155; font-size: 17px; line-height: 1.55; }
    .hb-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin-top: 24px; }
    .hb-card, .hb-panel, .hb-question { border: 1px solid #d6dee8; border-radius: 8px; background: #fff; padding: 16px; }
    .hb-card h2, .hb-panel h2 { margin-top: 0; font-size: 20px; }
    .hb-card a { color: #0f766e; font-weight: 700; text-decoration: none; }
    .hb-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
    .hb-badge { display: inline-flex; align-items: center; border: 1px solid #cbd5e1; border-radius: 999px; padding: 3px 8px; font-size: 12px; background: #f8fafc; color: #334155; }
    .hb-badge--draft { border-color: #f59e0b; background: #fffbeb; color: #92400e; }
    .hb-badge--proposed { border-color: #2563eb; background: #eff6ff; color: #1e3a8a; }
    .hb-badge--reviewed { border-color: #16a34a; background: #f0fdf4; color: #166534; }
    .hb-badge--stale { border-color: #dc2626; background: #fef2f2; color: #991b1b; }
    .hb-badge--retired { border-color: #6b7280; background: #f3f4f6; color: #374151; }
    .hb-review-panel dl.hb-review-meta { margin: 0 0 10px; display: grid; grid-template-columns: 110px 1fr; gap: 4px 10px; font-size: 13px; }
    .hb-review-panel dt { color: #475569; font-weight: 600; }
    .hb-review-panel dd { margin: 0; color: #0f172a; }
    .hb-review-panel h3 { margin: 4px 0 6px; font-size: 14px; text-transform: uppercase; letter-spacing: 0.04em; color: #475569; }
    .hb-signoff-list { margin: 0; padding-left: 18px; font-size: 13px; }
    .hb-signoff-list li { margin-bottom: 6px; }
    .hb-signoff-empty { margin: 0; font-size: 13px; color: #64748b; }
    .hb-review-rules { margin: 12px 0 0; font-size: 12px; color: #64748b; }
    .hb-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 22px; margin-top: 24px; }
    .hb-main { display: grid; gap: 18px; }
    .hb-side { display: grid; gap: 16px; align-content: start; }
    .hb-chip-grid { display: grid; gap: 8px; }
    .hb-chip { display: grid; gap: 3px; border: 1px solid #d6dee8; border-radius: 6px; padding: 8px; }
    .hb-chip small { color: #64748b; }
    .hb-question { display: grid; gap: 10px; }
    .hb-question-top { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
    .hb-question-id { margin-left: auto; font-size: 12px; color: #64748b; }
    .hb-question-stem { margin: 0; font-size: 15px; line-height: 1.5; color: #0f172a; }
    .hb-options { display: grid; gap: 6px; }
    .hb-option { display: grid; grid-template-columns: auto auto 1fr; gap: 8px; align-items: start; padding: 8px 10px; border: 1px solid #e2e8f0; border-radius: 6px; cursor: pointer; transition: border-color .12s, background .12s; }
    .hb-option:hover { border-color: #99f6e4; background: #f0fdfa; }
    .hb-option input { margin-top: 3px; }
    .hb-option-key { font-weight: 700; color: #115e59; }
    .hb-option--short { grid-template-columns: 1fr; }
    .hb-option--short input { font: inherit; padding: 7px 9px; border: 1px solid #cbd5e1; border-radius: 6px; }
    .hb-question-buttons { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
    .hb-question-status { font-size: 13px; color: #475569; }
    .hb-btn { font: inherit; cursor: pointer; padding: 7px 12px; border-radius: 6px; border: 1px solid #0f766e; background: #0f766e; color: #fff; }
    .hb-btn--reset, .hb-btn--ghost { background: transparent; color: #0f766e; }
    .hb-btn--reveal { background: #475569; border-color: #475569; }
    .hb-result { margin-top: 4px; padding: 12px; border-left: 4px solid #0f766e; border-radius: 6px; background: #f8fafc; color: #1f2937; }
    .hb-result--correct { border-left-color: #16a34a; background: #f0fdf4; }
    .hb-result--incorrect { border-left-color: #dc2626; background: #fef2f2; }
    .hb-result--reveal { border-left-color: #475569; background: #f1f5f9; }
    .hb-result-headline { margin: 0 0 6px; font-weight: 600; }
    .hb-result-explanation { margin: 0 0 8px; }
    .hb-result-sources { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: 13px; color: #475569; }
    .hb-result-source { background: #fff; border: 1px solid #cbd5e1; border-radius: 4px; padding: 2px 6px; }
    .hb-result-tags { margin-top: 6px; font-size: 12px; color: #475569; }
    .hb-result-tag { display: inline-block; background: #e0f2fe; border-radius: 999px; padding: 2px 8px; margin-right: 4px; color: #075985; }
    .hb-quiz-header { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px; }
    .hb-quiz-header h2 { margin: 0; }
    .hb-quiz-tools { display: flex; align-items: center; gap: 10px; }
    .hb-score { font-size: 13px; color: #0f172a; background: #f1f5f9; padding: 4px 10px; border-radius: 999px; }
    .hb-quiz-note { margin: 6px 0 12px; font-size: 13px; color: #475569; }
    .hb-disclaimer { border-left: 4px solid #f59e0b; background: #fffbeb; padding: 12px; color: #78350f; }
    .hb-controls { display: grid; grid-template-columns: minmax(220px, 2fr) repeat(3, minmax(150px, 1fr)); gap: 10px 14px; align-items: end; margin-top: 22px; padding: 14px; border: 1px solid #d6dee8; border-radius: 8px; background: #f8fafc; }
    .hb-control { display: grid; gap: 4px; font-size: 12px; color: #475569; }
    .hb-control span { font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
    .hb-control input, .hb-control select { font: inherit; padding: 7px 9px; border: 1px solid #cbd5e1; border-radius: 6px; background: #fff; color: #0f172a; }
    .hb-control input:focus, .hb-control select:focus { outline: 2px solid #0f766e; outline-offset: 1px; }
    .hb-result-count { grid-column: 1 / -1; margin: 4px 0 0; font-size: 13px; color: #475569; }
    .hb-empty { grid-column: 1 / -1; margin: 0; padding: 12px; border: 1px dashed #cbd5e1; border-radius: 6px; background: #fff; color: #475569; text-align: center; }
    .hb-tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
    .hb-tag { display: inline-flex; padding: 2px 8px; font-size: 11px; border-radius: 999px; background: #e0f2f1; color: #115e59; border: 1px solid #99f6e4; }
    @media (max-width: 860px) { .hb-layout { grid-template-columns: 1fr; } .hb-hero h1 { font-size: 28px; } .hb-controls { grid-template-columns: 1fr; } }