.checklist-page { padding: 48px 0 80px; }
        .checklist-page h1 { font-size: 1.9rem; margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
        .checklist-page .subtitle { color: var(--gray); margin-bottom: 24px; max-width: 680px; line-height: 1.6; }
        .checklist-actions { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; flex-wrap: wrap; }
        .print-btn {
            display: inline-flex; align-items: center; gap: 8px;
            background: var(--amber); color: #1c1917;
            border: 1px solid var(--amber); border-radius: 8px;
            padding: 10px 20px; font-weight: 600; font-size: 0.95rem;
            cursor: pointer; transition: all 0.2s ease;
        }
        .print-btn:hover { background: var(--amber-light); border-color: var(--amber-light); }
        .reset-btn {
            display: inline-flex; align-items: center; gap: 6px;
            background: var(--surface); color: var(--text);
            border: 1px solid var(--border); border-radius: 8px;
            padding: 10px 18px; font-size: 0.9rem; font-weight: 500;
            cursor: pointer; transition: all 0.2s ease;
        }
        .reset-btn:hover { border-color: var(--text-muted); }
        .checklist-progress-text { font-size: 0.88rem; color: var(--text-muted); font-weight: 600; margin-left: auto; }
        
        .print-doc-header, .print-summary-panel, .print-doc-footer { display: none; }

        .checklist-branch { display: none; }
        .checklist-branch.active { display: block; }

        .checklist-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 28px;
            margin-bottom: 20px;
            box-shadow: var(--shadow);
        }
        .checklist-card h2 {
            font-size: 1.15rem; margin-bottom: 16px; color: var(--text);
            border-bottom: 1px solid var(--border); padding-bottom: 8px;
        }
        .checklist-list {
            list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px;
        }
        .checklist-item {
            display: flex; align-items: flex-start; gap: 12px;
            padding: 12px 14px; background: var(--surface-2);
            border: 1px solid var(--border); border-radius: 8px;
            cursor: pointer; transition: all 0.15s ease;
        }
        .checklist-item:hover { border-color: var(--amber-light); }
        .checklist-item.checked {
            background: rgba(217,119,6,0.06);
            border-color: var(--amber);
        }
        .checklist-item input[type="checkbox"] {
            accent-color: var(--amber);
            width: 18px; height: 18px; margin-top: 2px;
            flex-shrink: 0; cursor: pointer;
        }
        .checklist-item label {
            font-size: 0.95rem; color: var(--text); line-height: 1.5;
            cursor: pointer; flex-grow: 1; user-select: none;
        }
        .checklist-item.checked label {
            color: var(--text-muted);
            text-decoration: line-through;
        }
        .checklist-disclaimer {
            margin-top: 32px;
            padding: 16px 20px;
            background: var(--callout-warning-bg);
            border-left: 4px solid var(--amber);
            border-radius: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.6;
        }
        .checklist-disclaimer strong { color: var(--text); }
        .checklist-related { margin-top: 40px; max-width: 680px; }
        .checklist-related h2 { font-size: 1.15rem; margin-bottom: 12px; color: var(--text); }
        .checklist-related ul { padding-left: 20px; margin: 0; }
        .checklist-related li { margin-bottom: 8px; font-size: 0.95rem; }
        .checklist-related a { color: var(--link); text-decoration: underline; text-underline-offset: 2px; }
        .checklist-related a:hover { color: var(--amber-dark); }

        :root[data-theme="dark"] .checklist-card { background: #292524; border-color: #44403c; }
        :root[data-theme="dark"] .checklist-card h2 { color: #f5f5f4; border-bottom-color: #44403c; }
        :root[data-theme="dark"] .checklist-item { background: #1c1917; border-color: #44403c; }
        :root[data-theme="dark"] .checklist-item:hover { border-color: var(--amber); }
        :root[data-theme="dark"] .checklist-item.checked { background: rgba(217,119,6,0.15); border-color: var(--amber); }
        :root[data-theme="dark"] .checklist-item label { color: #f5f5f4; }
        :root[data-theme="dark"] .checklist-item.checked label { color: #a8a29e; }
        :root[data-theme="dark"] .reset-btn { background: #292524; border-color: #44403c; color: #f5f5f4; }
        :root[data-theme="dark"] .reset-btn:hover { border-color: #78716c; }
        :root[data-theme="dark"] .checklist-disclaimer { background: #292524; color: #a8a29e; }
        :root[data-theme="dark"] .checklist-disclaimer strong { color: #f5f5f4; }
        :root[data-theme="dark"] .checklist-related h2 { color: #f5f5f4; }
        :root[data-theme="dark"] .checklist-related a { color: var(--link); }
        :root[data-theme="dark"] .checklist-related a:hover { color: #fde68a; }

        :root[data-theme="warm"] .checklist-card { background: #fffef5; border-color: #d6d3d1; }
        :root[data-theme="warm"] .checklist-item { background: #fefce8; border-color: #d6d3d1; }
        :root[data-theme="warm"] .checklist-disclaimer { background: #fffbeb; }
        :root[data-theme="warm"] .reset-btn { background: #fffef5; border-color: #d6d3d1; }

        @media (max-width: 600px) and (orientation: portrait) {
            .checklist-page { padding-block: 28px 48px; }
            .checklist-card { padding: 16px; border-radius: 12px; }
            .checklist-item { gap: 10px; padding: 11px 12px; }
            .checklist-item label { font-size: 0.86rem; line-height: 1.4; }
            .checklist-disclaimer { margin: 24px 16px 0; padding: 12px 14px; font-size: 0.8rem; line-height: 1.45; }
        }

        /* Professional A4 Print Document CSS */
        @page {
            size: A4 portrait;
            margin: 14mm 15mm 14mm 15mm;
        }

        @media print {
            * {
                -webkit-print-color-adjust: exact !important;
                print-color-adjust: exact !important;
            }
            body {
                background: #ffffff !important;
                color: #1c1917 !important;
                font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif !important;
                font-size: 9.5pt !important;
                line-height: 1.4 !important;
                margin: 0 !important;
                padding: 0 !important;
            }
            .site-header, nav, .mobile-nav, .mobile-nav-panel, .site-footer,
            .checklist-actions, .header-actions, .skip-link, #reading-progress,
            #back-to-top, .checklist-related, button, .screen-only, .structure-selector, .checklist-modal-backdrop {
                display: none !important;
            }
            .checklist-page {
                padding: 0 !important;
                margin: 0 !important;
            }
            .container-narrow, .container {
                max-width: 100% !important;
                width: 100% !important;
                padding: 0 !important;
                margin: 0 !important;
            }

            .checklist-branch:not(.active) { display: none !important; }
            .checklist-branch.active { display: block !important; }

            .print-doc-header {
                display: block !important;
                border-bottom: 1px solid #d97706;
                padding-bottom: 8px;
                margin-bottom: 10px;
            }
            .print-doc-brand {
                display: flex;
                justify-content: center;
                align-items: baseline;
                margin-bottom: 4px;
            }
            .brand-name {
                font-size: 13pt;
                font-weight: 800;
                color: #1c1917;
                letter-spacing: -0.3px;
                font-family: Georgia, 'Times New Roman', serif;
            }
            .brand-accent { color: #d97706; }
            .brand-tagline {
                font-size: 8pt;
                color: #57534e;
                font-weight: 500;
            }
            .brand-tagline,
            .print-doc-purpose,
            .print-doc-meta .print-meta-item:last-child,
            .print-doc-meta .print-meta-sep:nth-last-child(2),
            .print-summary-panel .summary-col:nth-child(2) { display: none !important; }
            .print-doc-title {
                font-size: 15pt !important;
                font-weight: 800 !important;
                color: #1c1917 !important;
                margin: 4px 0 3px !important;
                line-height: 1.2 !important;
                text-align: center;
                font-family: Georgia, 'Times New Roman', serif;
            }
            .print-doc-purpose {
                font-size: 8.5pt !important;
                color: #44403c !important;
                margin: 0 0 6px !important;
                line-height: 1.35 !important;
            }
            .print-doc-meta {
                display: flex;
                justify-content: center;
                flex-wrap: wrap;
                gap: 8px;
                font-size: 7.5pt;
                color: #78716c;
            }
            .print-meta-sep { color: #d6d3d1; }

            .print-summary-panel {
                display: grid !important;
                grid-template-columns: 1.2fr 1fr;
                gap: 10px;
                background: #faf8f5 !important;
                border: 1px solid #e7e5e4 !important;
                border-left: 3px solid #d97706 !important;
                border-radius: 4px !important;
                padding: 8px 12px !important;
                margin-bottom: 12px !important;
                break-inside: avoid;
                page-break-inside: avoid;
            }
            .summary-col { display: flex; flex-direction: column; gap: 2px; }
            .summary-label { font-size: 7.5pt; color: #78716c; text-transform: uppercase; font-weight: 600; letter-spacing: 0.03em; }
            .summary-val { font-size: 9pt; font-weight: 700; color: #1c1917; }
            .summary-badge {
                display: inline-block;
                padding: 1px 6px;
                border-radius: 3px;
                font-size: 8pt;
                font-weight: 700;
                width: fit-content;
            }
            .summary-badge.not-started { background: #f3f4f6; color: #4b5563; border: 1px solid #d1d5db; }
            .summary-badge.in-progress { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
            .summary-badge.completed { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }

            .checklist-card {
                background: #ffffff !important;
                border: 1px solid #e5e7eb !important;
                border-radius: 4px !important;
                padding: 10px 14px !important;
                margin-bottom: 10px !important;
                break-inside: avoid;
                page-break-inside: avoid;
                box-shadow: none !important;
            }
            :root[data-theme="dark"] .checklist-card,
            :root[data-theme="dark"] .checklist-item,
            :root[data-theme="dark"] .checklist-disclaimer {
                background: #ffffff !important;
                color: #1c1917 !important;
            }
            :root[data-theme="dark"] .checklist-card h2,
            :root[data-theme="dark"] .checklist-item label,
            :root[data-theme="dark"] .checklist-page .tool-next-steps,
            :root[data-theme="dark"] .checklist-page .tool-next-steps *,
            :root[data-theme="dark"] .checklist-disclaimer strong {
                color: #1c1917 !important;
            }
            :root[data-theme="dark"] .checklist-item.checked label,
            :root[data-theme="dark"] .checklist-disclaimer {
                color: #57534e !important;
            }
            .checklist-card h2 {
                font-size: 10.5pt !important;
                font-weight: 700 !important;
                margin: 0 0 6px 0 !important;
                padding-bottom: 4px !important;
            }
            .checklist-item {
                background: #ffffff !important;
                border: 1px solid #e5e7eb !important;
                padding: 6px 10px !important;
            }
            .print-doc-footer {
                display: flex !important;
                justify-content: space-between;
                border-top: 1px solid #e7e5e4;
                padding-top: 8px;
                margin-top: 16px;
                font-size: 7.5pt;
                color: #a8a29e;
            }
        }