.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;font-size:13px;font-weight:500;border:none;border-radius:var(--border-radius);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn .icon{width:16px;height:16px;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;fill:none}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover)}.btn-secondary{background-color:var(--bg-tertiary);color:var(--text-primary)}.btn-secondary:hover:not(:disabled){background-color:var(--border-color)}.btn-action{background-color:var(--color-success);color:#fff}.btn-action:hover:not(:disabled){background-color:#16a34a}.btn-danger{background-color:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){background-color:var(--color-danger-hover)}.btn-icon{padding:8px;background-color:transparent;color:var(--text-secondary)}.btn-icon:hover:not(:disabled){background-color:var(--bg-tertiary);color:var(--text-primary)}.btn-small{padding:6px 10px;font-size:12px}.btn-small .icon{width:14px;height:14px}.btn-large{padding:12px 24px;font-size:15px}.btn-large .icon{width:20px;height:20px}.btn-tiny{padding:2px}.btn-tiny .icon{width:12px;height:12px}.form-group{margin-bottom:16px}.form-label{display:block;margin-bottom:6px;font-size:12px;font-weight:500;color:var(--text-secondary)}.form-input,.form-select{width:100%;padding:8px 12px;font-size:13px;border:1px solid var(--border-color);border-radius:var(--border-radius);background-color:var(--bg-primary);color:var(--text-primary);transition:border-color var(--transition-fast)}.form-input:focus,.form-select:focus{outline:0;border-color:var(--color-primary)}.form-input::placeholder{color:var(--text-muted)}.form-error{font-size:12px;color:var(--color-danger,#ef4444);margin-top:4px;display:block}.modal{position:fixed;inset:0;background-color:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:2000}.modal.hidden{display:none}.modal-content{background-color:var(--bg-primary);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-lg);max-width:480px;width:90%;max-height:90vh;overflow-y:auto;animation:.2s ease-out modalSlideIn}@keyframes modalSlideIn{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border-color)}.modal-title{font-size:16px;font-weight:600}.modal-body{padding:20px}.modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:16px 20px;border-top:1px solid var(--border-color);background-color:var(--bg-secondary)}.modal-content-wide{max-width:600px}.about-content{text-align:center}.about-logo{width:80px;height:auto;margin-bottom:16px;filter:drop-shadow(0 4px 12px rgba(59, 130, 246, .3))}.about-content h2{font-size:24px;font-weight:700;color:var(--color-primary);margin-bottom:8px}.about-content .version{font-size:14px;color:var(--text-muted);margin-bottom:16px}.about-content .description{font-size:14px;color:var(--text-secondary);line-height:1.6;margin-bottom:24px}.about-links{display:flex;justify-content:center;gap:16px}.about-links a{display:inline-flex;align-items:center;gap:6px;color:var(--color-primary);text-decoration:none;font-size:14px;transition:opacity var(--transition-fast)}.about-links a:hover{opacity:.8}.about-links .icon{width:16px;height:16px;stroke:currentColor;stroke-width:2;fill:none}.shortcuts-list{display:grid;gap:8px}.shortcut-row{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background-color:var(--bg-secondary);border-radius:var(--border-radius)}.shortcut-key{font-family:'SF Mono',Monaco,Consolas,monospace;font-size:12px;background-color:var(--bg-tertiary);padding:4px 8px;border-radius:4px;border:1px solid var(--border-color)}.shortcut-action{font-size:13px;color:var(--text-secondary)}.modal-large{max-width:800px;width:95%;max-height:85vh}.modal-confirm{max-width:420px;width:90%}.modal-confirm .modal-body{padding:20px 24px}.modal-confirm #confirm-message{margin:0;line-height:1.5;color:var(--text-primary)}.modal-confirm .modal-footer{gap:12px}.modal-confirm .btn-danger{background:var(--color-error);border-color:var(--color-error);color:#000}[data-theme=dark] .modal-confirm .btn-danger{color:#fff}.modal-confirm .btn-danger:hover{background:#c82333;border-color:#bd2130;color:#fff}.help-modal-body{display:flex;flex-direction:column;padding:0;height:60vh;min-height:400px}.help-tabs{display:flex;flex-wrap:wrap;gap:4px;padding:12px 16px;background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color)}.help-tab{padding:8px 14px;border:none;background-color:transparent;color:var(--text-secondary);font-size:13px;font-weight:500;border-radius:var(--border-radius);cursor:pointer;transition:all var(--transition-fast)}.help-tab:hover{background-color:var(--bg-tertiary);color:var(--text-primary)}.help-tab.active{background-color:var(--color-primary);color:#fff}.help-content{flex:1;overflow-y:auto;padding:20px 24px}.help-section{display:none}.help-section.active{display:block}.help-section h4{font-size:18px;font-weight:600;color:var(--text-primary);margin-bottom:12px;padding-bottom:8px;border-bottom:2px solid var(--color-primary)}.help-section h5{font-size:14px;font-weight:600;color:var(--text-primary);margin-top:20px;margin-bottom:8px}.help-section p{font-size:14px;color:var(--text-secondary);line-height:1.6;margin-bottom:12px}.help-section ol,.help-section ul{font-size:14px;color:var(--text-secondary);line-height:1.8;margin-bottom:12px;padding-left:24px}.help-section li{margin-bottom:4px}.help-section kbd{display:inline-block;font-family:'SF Mono',Monaco,Consolas,monospace;font-size:11px;background-color:var(--bg-tertiary);padding:2px 6px;border-radius:4px;border:1px solid var(--border-color);box-shadow:0 1px 0 var(--border-color)}.help-section strong{color:var(--text-primary);font-weight:600}.help-table-container{overflow-x:auto;margin:12px 0}.help-table{width:100%;border-collapse:collapse;font-size:13px}.help-table td,.help-table th{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border-color)}.help-table th{background-color:var(--bg-secondary);font-weight:600;color:var(--text-primary)}.help-table td{color:var(--text-secondary)}.help-table tbody tr:hover{background-color:var(--bg-secondary)}.help-table kbd{font-size:11px}[data-theme=dark] .help-tab.active{background-color:var(--color-primary)}.context-menu{position:fixed;z-index:1000;background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--border-radius);box-shadow:var(--shadow-lg);min-width:180px;padding:4px 0;animation:.15s ease-out contextMenuFadeIn}@keyframes contextMenuFadeIn{from{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.context-menu.hidden{display:none}.context-menu-item{display:flex;align-items:center;gap:10px;width:100%;padding:8px 14px;border:none;background:0 0;color:var(--text-primary);font-size:13px;cursor:pointer;text-align:left;transition:background-color var(--transition-fast)}.context-menu-item:hover{background-color:var(--bg-tertiary)}.context-menu-item .icon{width:16px;height:16px;stroke:var(--text-secondary);stroke-width:2;fill:none}.context-menu-item-danger{color:var(--color-danger)}.context-menu-item-danger .icon{stroke:var(--color-danger)}.context-menu-item-danger:hover{background-color:rgba(239,68,68,.1)}.context-menu-divider{height:1px;background-color:var(--border-color);margin:4px 0}.context-menu-has-submenu{position:relative;display:flex;align-items:center;gap:10px;width:100%;padding:8px 14px;border:none;background:0 0;color:var(--text-primary);font-size:13px;cursor:pointer;text-align:left;transition:background-color var(--transition-fast)}.context-menu-has-submenu:hover{background-color:var(--bg-tertiary)}.context-menu-has-submenu .icon{width:16px;height:16px;stroke:var(--text-secondary);stroke-width:2;fill:none}.context-menu-has-submenu>span{flex:1}.submenu-arrow{width:14px;height:14px;stroke:var(--text-muted);stroke-width:2;fill:none}.context-submenu{display:none;position:absolute;left:100%;top:0;background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--border-radius);box-shadow:var(--shadow-lg);min-width:140px;padding:4px 0;margin-left:2px}.context-menu-has-submenu:hover>.context-submenu{display:block;animation:.15s ease-out contextMenuFadeIn}.context-submenu.flip-left{left:auto;right:100%;margin-left:0;margin-right:2px}.toast-container{position:fixed;bottom:48px;right:16px;display:flex;flex-direction:column;gap:8px;z-index:4000}.toast{display:flex;align-items:center;gap:12px;padding:12px 16px;background-color:var(--bg-primary);border-radius:var(--border-radius);box-shadow:var(--shadow-lg);animation:.3s slideIn;max-width:360px;border-left:4px solid var(--text-muted)}@keyframes slideIn{from{opacity:0;transform:translateX(100%)}to{opacity:1;transform:translateX(0)}}.toast.success{border-left-color:var(--color-success)}.toast.error{border-left-color:var(--color-danger)}.toast.warning{border-left-color:var(--color-warning)}.toast.info{border-left-color:var(--color-primary)}.toast-message{font-size:13px;color:var(--text-primary)}.drop-zone-overlay{position:fixed;inset:0;background-color:rgba(59,130,246,.9);z-index:5000;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:#fff;transition:opacity .2s}.drop-zone-overlay.hidden{display:none;opacity:0;pointer-events:none}.drop-zone-overlay .icon{width:64px;height:64px;stroke:currentColor;stroke-width:1.5;fill:none;animation:.6s infinite alternate dropBounce}@keyframes dropBounce{from{transform:translateY(0)}to{transform:translateY(-10px)}}.drop-zone-overlay span{font-size:18px;font-weight:500}