*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--blue: #1d9bf0;--blue-hover: #1a8cd8;--bg: #000000;--surface: #16181c;--border: #2f3336;--border-hover: #536471;--text-primary: #e7e9ea;--text-secondary: #71767b;--text-tertiary: #536471;--danger: #f4212e;--danger-hover: #dc1d28;--danger-bg: rgba(244, 33, 46, .15);--success: #00ba7c;--warning: #ffad1f;--hover-overlay: rgba(231, 233, 234, .03);--active-overlay: rgba(231, 233, 234, .06);--selected-bg: rgba(29, 155, 240, .12);--radius-sm: 4px;--radius-md: 12px;--radius-lg: 16px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 2px 8px rgba(0, 0, 0, .3);--sidebar-width: 275px;--content-max: 600px;--right-sidebar: 350px}[data-theme=light]{--bg: #f7f9f9;--surface: #ffffff;--border: #eff3f4;--border-hover: #cfd9de;--text-primary: #0f1419;--text-secondary: #536471;--text-tertiary: #8899a6;--danger-bg: rgba(244, 33, 46, .1);--hover-overlay: rgba(15, 20, 25, .03);--active-overlay: rgba(15, 20, 25, .06);--selected-bg: rgba(29, 155, 240, .1);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 2px 8px rgba(0, 0, 0, .08)}html{font-size:15px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text-primary);line-height:1.5;min-height:100vh}.app-layout{display:flex;max-width:calc(var(--sidebar-width) + var(--content-max) + var(--right-sidebar));margin:0 auto;min-height:100vh}.sidebar{width:var(--sidebar-width);position:sticky;top:0;height:100vh;display:flex;flex-direction:column;padding:4px 12px;border-right:1px solid var(--border);overflow-y:auto}.sidebar-logo{padding:12px;font-size:1.4rem;font-weight:800;color:var(--text-primary);letter-spacing:-.02em}.sidebar-logo span{color:var(--blue)}.sidebar-nav{display:flex;flex-direction:column;gap:4px;margin-top:8px;flex:1}.nav-item{display:flex;align-items:center;gap:16px;padding:12px;border-radius:var(--radius-full);font-size:1.2rem;font-weight:400;color:var(--text-primary);cursor:pointer;transition:background .15s;border:none;background:none;text-align:left;width:100%}.nav-item:hover{background:var(--hover-overlay)}.nav-item.active{font-weight:700}.nav-icon{width:26px;height:26px;display:flex;align-items:center;justify-content:center;font-size:1.25rem;position:relative}.notification-badge{position:absolute;top:-6px;right:-10px;background:var(--danger);color:#fff;font-size:.65rem;font-weight:700;min-width:16px;height:16px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;padding:0 4px;line-height:1}.nav-sub-items{display:flex;flex-direction:column;gap:2px;padding-left:42px}.nav-sub-item{display:flex;align-items:center;padding:8px 12px;border-radius:var(--radius-full);font-size:.93rem;font-weight:400;color:var(--text-secondary);cursor:pointer;transition:background .15s;border:none;background:none;text-align:left;width:100%}.nav-sub-item:hover{background:var(--hover-overlay);color:var(--text-primary)}.nav-sub-item.active{font-weight:700;color:var(--text-primary)}.sidebar-footer{margin-top:auto;padding:12px;display:flex;flex-direction:column;gap:8px}.sidebar-user-row{display:flex;align-items:center;gap:10px;padding:4px;border-radius:var(--radius-lg)}.sidebar-user-row:hover{background:var(--hover-overlay)}.sidebar-user-info{display:flex;flex-direction:column;gap:2px;min-width:0}.sidebar-username{font-weight:700;font-size:.93rem}.sidebar-email{font-size:.8rem;color:var(--text-secondary)}.sidebar-meta{display:flex;align-items:center;gap:8px;margin-top:4px;font-size:.8rem;color:var(--text-tertiary)}.sidebar-actions{display:flex;gap:8px}.main-content{flex:1;max-width:var(--content-max);border-right:1px solid var(--border);min-height:100vh;display:flex;flex-direction:column}.panel-column{flex:1;display:flex;flex-direction:column}.filter-bar{position:sticky;top:0;z-index:10}.filter-row{display:flex;gap:8px;margin-top:8px}.filter-row input[type=search]{flex:1;min-width:0}.filter-row select{flex-shrink:0}.book-list-scroll{max-height:60vh;overflow-y:auto;border-bottom:1px solid var(--border)}.card{background:var(--surface);border-bottom:1px solid var(--border);padding:16px}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.card-title{font-size:1.15rem;font-weight:800}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border-radius:var(--radius-full);font-size:.9rem;font-weight:700;cursor:pointer;transition:background .15s,opacity .15s;border:none;line-height:1.2;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover:not(:disabled){background:var(--blue-hover)}.btn-secondary{background:transparent;color:var(--text-primary);border:1px solid var(--border-hover)}.btn-secondary:hover:not(:disabled){background:var(--hover-overlay);border-color:var(--text-secondary)}.btn-danger{background:transparent;color:var(--danger);border:1px solid rgba(244,33,46,.35)}.btn-danger:hover:not(:disabled){background:var(--danger-bg)}.btn-sm{padding:4px 12px;font-size:.82rem}.btn-link{background:none;border:none;color:var(--blue);cursor:pointer;font-weight:600;font-size:.87rem;padding:4px 8px;border-radius:var(--radius-full)}.btn-link:hover{background:var(--selected-bg)}.input,input[type=text],input[type=email],input[type=search],input:not([type]),textarea,select{width:100%;padding:10px 12px;border:1px solid var(--border-hover);border-radius:var(--radius-sm);font-size:.93rem;font-family:inherit;color:var(--text-primary);background:var(--surface);transition:border-color .15s,box-shadow .15s;outline:none}.input:focus,input:focus,textarea:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 1px var(--blue)}.input::placeholder,input::placeholder,textarea::placeholder{color:var(--text-tertiary)}.form-row{display:flex;gap:8px;align-items:flex-end}.form-stack{display:flex;flex-direction:column;gap:8px}.form-inline{display:flex;gap:8px;align-items:center}.form-label{font-size:.82rem;font-weight:600;color:var(--text-secondary);margin-bottom:2px}.list-item{display:flex;align-items:flex-start;gap:12px;padding:12px 16px;background:var(--surface);border-bottom:1px solid var(--border);cursor:pointer;transition:background .15s}.list-item:hover{background:var(--hover-overlay)}.list-item.selected{background:var(--selected-bg)}.list-item-clickable{cursor:pointer}.list-item:last-child{border-bottom:none}.user-avatar{border-radius:50%;object-fit:cover;flex-shrink:0}.user-avatar-fallback{background:var(--border);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-weight:700}.list-item-avatar{width:40px;height:40px;border-radius:50%;background:var(--border);display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0;color:var(--text-secondary)}.list-item-thumbnail{width:40px;height:56px;object-fit:cover;border-radius:4px;flex-shrink:0}.list-item-body{flex:1;min-width:0}.list-item-title{font-weight:700;font-size:.93rem}.list-item-meta{color:var(--text-secondary);font-size:.87rem}.list-item-description{color:var(--text-secondary);font-size:.82rem;margin-top:2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.list-item-subtitle{color:var(--text-secondary);font-size:.87rem;margin-top:2px}.list-item-actions{display:flex;gap:8px;align-items:center;margin-top:6px}.list-item-detail{font-size:.82rem;color:var(--text-secondary);margin-top:4px;padding-top:4px;border-top:1px solid var(--border)}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:var(--radius-full);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em}.badge-available{background:#00ba7c1a;color:var(--success)}.badge-on-loan,.badge-active{background:var(--selected-bg);color:var(--blue)}.badge-returned{background:var(--hover-overlay);color:var(--text-secondary)}.badge-pending{background:#ffad1f26;color:#d4930a}.badge-role{background:var(--hover-overlay);color:var(--text-secondary)}.badge-private{background:#8b5cf61f;color:#7c3aed}.notification-unseen{background:#1d9bf00f;border-left:3px solid var(--blue)}.notification-icon{width:40px;height:40px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0}.username-link{background:none;border:none;color:var(--blue);cursor:pointer;font-weight:700;font-size:.93rem;padding:0;font-family:inherit;line-height:inherit}.username-link:hover{text-decoration:underline}.username-link-inline{font-size:inherit;font-weight:inherit}.empty-state{padding:32px 16px;text-align:center;color:var(--text-tertiary);font-size:.93rem}.section-divider{height:8px;background:var(--bg);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.response-display{position:sticky;bottom:0;z-index:10;margin-top:auto;border-top:1px solid var(--border);background:var(--surface)}.response-display summary{padding:10px 16px;font-size:.82rem;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;gap:8px}.response-display summary:hover{background:var(--hover-overlay)}.response-display .response-path{font-family:SF Mono,Fira Code,Fira Mono,Menlo,monospace;color:var(--text-tertiary);font-size:.78rem}.response-display .response-timing{font-weight:700;font-size:.78rem}.response-display .timing-fast{color:var(--success)}.response-display .timing-medium{color:var(--warning)}.response-display .timing-slow{color:var(--danger)}.response-display pre{background:#1e1e1e;color:#d4d4d4;padding:12px 16px;overflow:auto;max-height:300px;font-family:SF Mono,Fira Code,Fira Mono,Menlo,monospace;font-size:.78rem;line-height:1.6;margin:0;border-top:1px solid var(--border)}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--surface)}.auth-card{text-align:center;padding:48px}.auth-card h1{font-size:2rem;font-weight:800;margin-bottom:8px}.auth-card h1 span{color:var(--blue)}.auth-card p{color:var(--text-secondary);margin-bottom:24px;font-size:.93rem}.auth-error{color:var(--danger);font-size:.87rem;margin-top:12px}.error-message{color:var(--danger);background:var(--danger-bg);padding:10px 14px;border-radius:var(--radius-md);font-size:.87rem;font-weight:500}.scan-results-grid{max-height:400px;overflow-y:auto;border:1px solid var(--border);border-radius:var(--radius-md)}.scan-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-bottom:1px solid var(--border);cursor:pointer;transition:background .15s}.scan-item:hover{background:var(--hover-overlay)}.scan-item:last-child{border-bottom:none}.scan-item.checked{background:var(--selected-bg)}.scan-thumbnail{width:40px;height:60px;object-fit:cover;border-radius:var(--radius-sm);flex-shrink:0}.scan-placeholder{width:40px;height:60px;background:var(--border);border-radius:var(--radius-sm);flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:.6rem;color:var(--text-tertiary)}.scan-tips{font-size:.87rem;color:var(--text-secondary);line-height:1.5}.scan-info strong{font-size:.93rem}.scan-info .scan-isbn{color:var(--text-tertiary);font-size:.82rem}.status-msg{padding:10px 16px;font-size:.87rem;font-weight:600;color:var(--blue);background:var(--selected-bg);border-radius:var(--radius-md);position:relative;overflow:hidden;z-index:0}.status-msg.scanning{color:#fff;background:#1a3a5c}.status-msg .progress-bar{position:absolute;top:0;left:0;bottom:0;width:0;background:#00c853;z-index:-1;animation:scan-progress 60s linear forwards}@keyframes scan-progress{0%{width:0}to{width:100%}}input[type=file]{border:none;padding:0;font-size:.87rem;color:var(--text-secondary)}input[type=file]:focus{box-shadow:none}input[type=checkbox]{width:18px;height:18px;accent-color:var(--blue);cursor:pointer;flex-shrink:0}select{width:auto;min-width:110px;-webkit-appearance:auto;-moz-appearance:auto;appearance:auto}.book-detail-thumbnail{width:140px;height:auto;max-height:210px;object-fit:cover;border-radius:var(--radius-sm);flex-shrink:0}.book-detail-placeholder{width:140px;height:180px;background:var(--border);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:2.5rem;color:var(--text-secondary);flex-shrink:0}.book-detail-meta{flex:1;min-width:0}.thumbnail-edit-container{position:relative;flex-shrink:0}.thumbnail-edit-btn{position:absolute;bottom:6px;left:50%;transform:translate(-50%);opacity:0;transition:opacity .15s;font-size:.75rem!important;padding:2px 8px!important}.thumbnail-edit-container:hover .thumbnail-edit-btn{opacity:1}.thumbnail-edit-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#00000080;color:#fff;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);font-size:.87rem;font-weight:600}.thumbnail-uploading{opacity:.5}.lightbox-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;background:#000000d9;display:flex;align-items:center;justify-content:center;cursor:pointer;animation:lightbox-fade-in .2s ease}@keyframes lightbox-fade-in{0%{opacity:0}to{opacity:1}}.lightbox-image{max-width:90vw;max-height:90vh;object-fit:contain;border-radius:var(--radius);box-shadow:0 8px 32px #00000080;cursor:default}.lightbox-close{position:absolute;top:16px;right:20px;background:none;border:none;color:#fff;font-size:2rem;cursor:pointer;line-height:1;opacity:.8;transition:opacity .15s}.lightbox-close:hover{opacity:1}.loan-inline{display:flex;gap:8px;align-items:center;margin-top:8px}.loan-inline input{flex:1;min-width:0;padding:6px 10px;font-size:.87rem}.scroll-loader{display:flex;align-items:center;justify-content:center;padding:16px 0;gap:8px;color:var(--text-secondary);font-size:.87rem}.scroll-loader-spinner{width:20px;height:20px;border:2.5px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-page{display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--text-secondary);font-size:1rem}.token-expired{color:var(--danger)!important}.mobile-header,.sidebar-overlay{display:none}@media(max-width:1000px){.sidebar{width:72px;align-items:center}.sidebar-logo{font-size:1rem}.sidebar-logo span{display:none}.nav-item span:not(.nav-icon){display:none}.nav-item{justify-content:center;padding:12px}.nav-sub-items,.sidebar-user-info,.sidebar-actions .btn span{display:none}.sidebar-footer{align-items:center}}@media(max-width:600px){.app-layout{flex-direction:column}.mobile-header{display:flex;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid var(--border);background:var(--surface);position:sticky;top:0;z-index:100}.mobile-header-title{font-size:1.2rem;font-weight:800;color:var(--text-primary)}.mobile-header-title span{color:var(--blue)}.menu-btn{background:none;border:none;color:var(--text-primary);cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full)}.menu-btn:hover{background:var(--hover-overlay)}.sidebar-overlay{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:200}.sidebar{display:flex;position:fixed;top:0;left:0;width:var(--sidebar-width);height:100vh;z-index:300;background:var(--surface);transform:translate(-100%);transition:transform .25s ease;align-items:stretch}.sidebar.sidebar-open{transform:translate(0)}.sidebar-logo span{display:inline}.nav-item span:not(.nav-icon){display:inline}.nav-item{justify-content:flex-start;padding:12px}.nav-sub-items,.sidebar-user-info{display:flex}.sidebar-footer{align-items:stretch}.sidebar-actions .btn span{display:inline}.main-content{border-right:none}.form-row{flex-direction:column}}