*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#0f0f1a;color:#cdd6f4;height:100vh;display:flex;flex-direction:column;overflow:hidden}.header{background:#1a1a2e;border-bottom:1px solid #2a2a4a;padding:0 20px;min-height:46px;display:flex;align-items:center;flex-wrap:wrap;gap:0 24px;flex-shrink:0}.header-brand{font-size:14px;font-weight:700;color:#cdd6f4;letter-spacing:.3px;white-space:nowrap;margin-right:8px}.header-divider{width:1px;height:20px;background:#2a2a4a}.nav{display:flex;flex-wrap:wrap;gap:0;flex:1;min-width:0}.nav-item{display:flex;align-items:center;gap:6px;padding:0 12px;height:40px;cursor:pointer;font-size:12px;color:#6c7086;border-bottom:2px solid transparent;transition:color .15s,border-color .15s,background .15s;white-space:nowrap;-webkit-user-select:none;user-select:none}.nav-item:hover{color:#cdd6f4;background:#cdd6f40a}.nav-item.active{color:#cdd6f4;border-bottom-color:#89b4fa}.nav-icon{font-size:15px;line-height:1}.app-container{flex:1;position:relative;overflow:hidden}.tool-page-wrapper{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;display:none}.tool-page-wrapper.active{display:block}.loading{position:absolute;top:0;right:0;bottom:0;left:0;background:#0f0f1a;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;pointer-events:none;opacity:0;transition:opacity .2s;z-index:999}.loading.visible{opacity:1;pointer-events:auto}.spinner{width:28px;height:28px;border:3px solid #313244;border-top-color:#89b4fa;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{font-size:12px;color:#6c7086}.btn-backup{background:#89b4fa1a;border:1px solid rgba(137,180,250,.3);color:#89b4fa;padding:5px 12px;border-radius:4px;font-size:12px;cursor:pointer;transition:all .15s}.btn-backup:hover{background:#89b4fa33;border-color:#89b4fa80}.modal-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:1000;align-items:center;justify-content:center}.modal-overlay.open{display:flex}.modal{background:#1e1e2e;border:1px solid #313244;border-radius:10px;width:720px;max-width:94vw;max-height:88vh;display:flex;flex-direction:column;box-shadow:0 16px 48px #00000080}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid #313244;flex-shrink:0}.modal-header h2{font-size:14px;font-weight:700;color:#cdd6f4}.modal-close{background:none;border:none;color:#6c7086;font-size:18px;cursor:pointer;padding:0 4px;line-height:1;transition:color .15s}.modal-close:hover{color:#cdd6f4;background:none}.modal-body{padding:18px;overflow-y:auto;flex:1}.backup-section{margin-bottom:20px}.backup-section:last-child{margin-bottom:0}.backup-section-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:#6c7086;margin-bottom:10px}.backup-btn-row{display:flex;gap:8px;margin-bottom:10px}.backup-action-btn{display:flex;align-items:center;gap:6px;padding:7px 14px;border-radius:6px;font-size:12px;cursor:pointer;transition:all .15s;border:1px solid transparent;white-space:nowrap}.btn-export{background:#a6e3a11a;border-color:#a6e3a14d;color:#a6e3a1}.btn-export:hover{background:#a6e3a133;border-color:#a6e3a180}.btn-import{background:#89b4fa1a;border-color:#89b4fa4d;color:#89b4fa}.btn-import:hover{background:#89b4fa33;border-color:#89b4fa80}.btn-clear-all{background:#f38ba81a;border-color:#f38ba84d;color:#f38ba8;margin-left:auto}.btn-clear-all:hover{background:#f38ba833;border-color:#f38ba880}.storage-preview{background:#181825;border:1px solid #313244;border-radius:6px;padding:10px 12px;font-family:SF Mono,Consolas,monospace;font-size:11px;line-height:1.7;color:#cdd6f4;max-height:260px;overflow-y:auto}.storage-item{margin-bottom:4px}.storage-key{color:#89b4fa}.storage-size{color:#6c7086;font-size:10px;margin-left:6px}.storage-empty{color:#6c7086;font-style:italic}.backup-textarea{width:100%;height:220px;background:#181825;border:1px solid #313244;border-radius:6px;padding:10px 12px;font-family:SF Mono,Consolas,monospace;font-size:11px;line-height:1.6;color:#a6e3a1;resize:vertical;outline:none;transition:border-color .15s}.backup-textarea:focus{border-color:#89b4fa}.import-status{margin-top:8px;font-size:11px;min-height:14px}.status-ok{color:#a6e3a1}.status-err{color:#f38ba8}.notification{position:fixed;top:54px;right:20px;padding:8px 16px;border-radius:6px;font-size:12px;opacity:0;transition:opacity .3s;pointer-events:none;z-index:2000;color:#fff}.notification.show{opacity:1}.notification.success{background:#a6e3a1;color:#11111b}.notification.error{background:#f38ba8;color:#11111b}