:root{--color-primary: #6F9D9F;--color-primary-hover: #5a8486;--color-secondary: #64748b;--color-success: #22c55e;--color-warning: #eab308;--color-error: #ef4444;--color-bg: #f8fafc;--color-surface: #ffffff;--color-text: #000000;--color-text-muted: #64748b;--color-border: #e2e8f0;--color-header-bg: #6F9D9F;--color-header-text: #000000;--radius: 0px;--radius-sm: 0px;--shadow: 0 1px 3px rgba(0,0,0,.1);--shadow-lg: 0 4px 12px rgba(0,0,0,.15)}[data-theme=dark]{--color-bg: #0f172a;--color-surface: #1e293b;--color-text: #f1f5f9;--color-text-muted: #94a3b8;--color-border: #334155;--color-header-bg: #4a7a7c;--color-header-text: #f1f5f9}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:-apple-system,BlinkMacSystemFont,Segoe 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var(--color-primary);outline-offset:-2px}.book-select-cb{width:16px;height:16px;accent-color:var(--color-primary);flex-shrink:0;cursor:pointer}.modal-overlay{display:none;position:fixed;inset:0;background:#0009;z-index:200;justify-content:center;align-items:center;padding:16px}.modal-overlay.active{display:flex}.modal-content{background:var(--color-surface);border-radius:var(--radius);width:100%;max-width:700px;max-height:80vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--color-border)}.modal-header h2{font-size:1.125rem}.preview-content{flex:1;overflow:auto;padding:16px;font-family:monospace;font-size:.8125rem;white-space:pre-wrap;word-break:break-word;color:var(--color-text);background:var(--color-bg);margin:0}.modal-footer{display:flex;gap:8px;justify-content:flex-end;padding:12px 16px;border-top:1px solid 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