:root{--murasaki: #7b2d8e;--murasaki-light: #9b4dbe;--murasaki-dark: #5a1d6e;--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-card: #1e2a45;--text-primary: #e8e8f0;--text-secondary: #a0a0b8;--text-muted: #6a6a80;--border: #2a2a45;--error: #e74c3c;--success: #2ecc71;--radius: 12px;--radius-sm: 8px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, monospace}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased}#app{min-height:100vh;display:flex;flex-direction:column}.unlock-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:24px}.unlock-header{text-align:center;margin-bottom:40px}.unlock-title{font-size:36px;font-weight:700;color:var(--murasaki-light);letter-spacing:-.5px}.unlock-subtitle{font-size:16px;color:var(--text-secondary);margin-top:4px}.unlock-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:32px;width:100%;max-width:400px;display:flex;flex-direction:column;gap:16px}.unlock-card h2{font-size:20px;font-weight:600}.unlock-instructions{font-size:14px;color:var(--text-secondary);line-height:1.5}.code-input-group,.passphrase-input-group{display:flex;gap:8px}.code-input{flex:1;font-family:var(--font-mono);font-size:24px;text-align:center;letter-spacing:4px;padding:12px 16px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);outline:none;transition:border-color .15s}.code-input:focus{border-color:var(--murasaki)}.passphrase-input{flex:1;font-size:16px;padding:12px 16px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);outline:none;transition:border-color .15s}.passphrase-input:focus{border-color:var(--murasaki)}.toggle-btn{background:none;border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 12px;color:var(--text-secondary);cursor:pointer}.toggle-btn:hover{color:var(--text-primary);border-color:var(--murasaki)}.primary-btn{padding:12px 24px;font-size:16px;font-weight:600;background:var(--murasaki);color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;transition:background .15s,opacity .15s}.primary-btn:hover:not(:disabled){background:var(--murasaki-light)}.primary-btn:disabled{opacity:.4;cursor:not-allowed}.text-btn{background:none;border:none;color:var(--text-muted);font-size:14px;cursor:pointer;padding:8px}.text-btn:hover{color:var(--text-secondary)}.error-msg{font-size:14px;color:var(--error);text-align:center}.loading-indicator{display:flex;align-items:center;justify-content:center;gap:12px;color:var(--text-secondary);font-size:14px}.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--murasaki);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.unlock-footer{margin-top:32px;max-width:400px}.privacy-note{font-size:12px;color:var(--text-muted);line-height:1.6;text-align:center}.library-container{display:flex;flex-direction:column;min-height:100vh}.library-header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg-primary);z-index:10}.library-header h1{font-size:20px;font-weight:600;color:var(--murasaki-light)}.library-header-actions{display:flex;gap:8px;align-items:center}.icon-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:8px;border-radius:var(--radius-sm)}.icon-btn:hover{color:var(--text-primary);background:var(--bg-card)}.library-filters{display:flex;gap:8px;padding:12px 24px;overflow-x:auto}.filter-chip{padding:6px 16px;font-size:13px;border-radius:20px;border:1px solid var(--border);background:transparent;color:var(--text-secondary);cursor:pointer;white-space:nowrap;transition:all .15s}.filter-chip.active{background:var(--murasaki);border-color:var(--murasaki);color:#fff}.filter-chip:hover:not(.active){border-color:var(--murasaki);color:var(--text-primary)}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:20px;padding:20px 24px;flex:1}.book-cell{display:flex;flex-direction:column;cursor:pointer;transition:transform .15s}.book-cell:hover{transform:translateY(-2px)}.book-cover{aspect-ratio:2/3;border-radius:var(--radius-sm);background:var(--bg-card);overflow:hidden;position:relative}.book-cover img{width:100%;height:100%;object-fit:cover}.book-cover-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;padding:12px;text-align:center;font-size:13px;font-weight:600;color:var(--text-secondary);line-height:1.3}.book-progress{position:absolute;bottom:0;left:0;right:0;height:3px;background:#0000004d}.book-progress-bar{height:100%;background:var(--murasaki-light);transition:width .3s}.book-title{margin-top:8px;font-size:13px;font-weight:600;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.book-author{font-size:12px;color:var(--text-secondary);margin-top:2px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.reader-container{display:flex;flex-direction:column;height:100vh;background:var(--bg-primary)}.reader-toolbar{display:flex;align-items:center;justify-content:space-between;padding:8px 16px;border-bottom:1px solid var(--border);transition:opacity .2s,transform .2s;background:var(--bg-primary);z-index:20}.reader-toolbar.hidden{opacity:0;transform:translateY(-100%);pointer-events:none}.reader-toolbar-title{font-size:14px;font-weight:500;flex:1;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:0 8px}.reader-content{flex:1;position:relative;overflow:hidden}.reader-content iframe{width:100%;height:100%;border:none}.reader-bottom-bar{display:flex;align-items:center;justify-content:space-between;padding:8px 16px;border-top:1px solid var(--border);transition:opacity .2s,transform .2s;background:var(--bg-primary);z-index:20}.reader-bottom-bar.hidden{opacity:0;transform:translateY(100%);pointer-events:none}.page-indicator{font-size:13px;color:var(--text-secondary);font-variant-numeric:tabular-nums}.chapter-nav-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:8px;font-size:14px}.chapter-nav-btn:hover{color:var(--text-primary)}.chapter-nav-btn:disabled{opacity:.3;cursor:not-allowed}.toc-drawer{position:fixed;top:0;right:-320px;width:320px;height:100vh;background:var(--bg-secondary);border-left:1px solid var(--border);z-index:30;transition:right .25s ease;overflow-y:auto;display:flex;flex-direction:column}.toc-drawer.open{right:0}.toc-drawer-header{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--border)}.toc-drawer-header h2{font-size:16px;font-weight:600}.toc-item{display:block;padding:12px 16px;font-size:14px;color:var(--text-secondary);text-decoration:none;border-bottom:1px solid var(--border);cursor:pointer;transition:background .1s}.toc-item:hover{background:var(--bg-card);color:var(--text-primary)}.toc-item.active{color:var(--murasaki-light);font-weight:600}.toc-overlay{display:none;position:fixed;inset:0;background:#00000080;z-index:25}.toc-overlay.visible{display:block}.settings-panel{position:fixed;bottom:-100%;left:0;right:0;max-height:60vh;background:var(--bg-secondary);border-top:1px solid var(--border);border-radius:var(--radius) var(--radius) 0 0;z-index:30;transition:bottom .25s ease;overflow-y:auto;padding:20px 24px}.settings-panel.open{bottom:0}.settings-section{margin-bottom:20px}.settings-section h3{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-bottom:12px}.font-size-slider{width:100%;accent-color:var(--murasaki)}.font-family-options{display:flex;flex-wrap:wrap;gap:8px}.font-option{padding:8px 16px;font-size:14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:transparent;color:var(--text-secondary);cursor:pointer}.font-option.active{background:var(--murasaki);border-color:var(--murasaki);color:#fff}.theme-options{display:flex;gap:8px}.theme-option{width:48px;height:48px;border-radius:var(--radius-sm);border:2px solid transparent;cursor:pointer}.theme-option.active{border-color:var(--murasaki)}.theme-light{background:#f5f5f0}.theme-dark{background:#1a1a2e}.theme-sepia{background:#f4ecd8}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 24px;text-align:center;color:var(--text-muted);gap:12px}.empty-state-icon{font-size:48px;opacity:.3}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 24px;gap:16px;color:var(--text-secondary)}@media(max-width:600px){.book-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:12px;padding:12px 16px}.library-header{padding:12px 16px}.library-filters{padding:8px 16px}.toc-drawer{width:280px;right:-280px}}@media(min-width:1200px){.book-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}}