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.action-btn:disabled{opacity:.5;cursor:not-allowed}.material-actions .action-btn.primary{background:var(--primary);color:#fff}.material-actions .action-btn.primary:hover:not(:disabled){background:var(--primary-hover)}.material-actions .action-btn.cancel{background:var(--danger)}.material-tip{display:flex;align-items:center;gap:.4rem;padding:.4rem .6rem;background:#6366f11a;border-radius:6px;border:1px solid rgba(99,102,241,.2)}.tip-icon{font-size:.9rem}.tip-text{font-size:.6rem;color:var(--text-muted)}.material-toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%) translateY(100px);background:var(--bg-card);border:1px solid var(--border);padding:.75rem 1.25rem;border-radius:8px;display:flex;align-items:center;gap:.5rem;box-shadow:0 4px 20px #0000004d;z-index:9999;opacity:0;transition:all .3s ease}.material-toast.show{transform:translate(-50%) translateY(0);opacity:1}.material-toast.success{border-color:var(--secondary)}.material-toast.warning{border-color:#f59e0b}.toast-icon{font-size:1rem}.toast-message{font-size:.8rem;color:var(--text)}.room-indicator{background:#6366f126;border-left:3px solid var(--primary);padding-left:.6rem!important;margin-bottom:.5rem}#dimension-labels{z-index:100;pointer-events:none}.dimension-label{background:#000000d9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#0ff;padding:4px 10px;border-radius:4px;font-size:12px;font-weight:600;font-family:Monaco,Courier New,monospace;border:1px solid rgba(0,255,255,.3);box-shadow:0 2px 8px #00ffff40,0 0 15px #00ffff26;white-space:nowrap;pointer-events:none;-webkit-user-select:none;user-select:none;text-shadow:0 0 5px rgba(0,255,255,.5);letter-spacing:.5px}.dimension-label.wall{color:#ffc800;border-color:#ffc8004d;box-shadow:0 2px 8px #ffc80040,0 0 15px #ffc80026;text-shadow:0 0 5px rgba(255,200,0,.5)}.dimension-label.height{color:#00ff96;border-color:#00ff964d;box-shadow:0 2px 8px #00ff9640,0 0 15px #00ff9626;text-shadow:0 0 5px rgba(0,255,150,.5)}.dimension-label.furniture{color:#ff64c8;border-color:#ff64c84d;box-shadow:0 2px 8px #ff64c840,0 0 15px #ff64c826;text-shadow:0 0 5px rgba(255,100,200,.5)}.dimension-label:hover{transform:scale(1.05);transition:transform .2s ease}.shortcuts-panel{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--bg-card);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-xl),0 0 40px #00000080;z-index:10000;min-width:450px;max-width:90vw;max-height:85vh;overflow:hidden;animation:panelSlideIn .2s ease-out}@keyframes panelSlideIn{0%{opacity:0;transform:translate(-50%,-50%) scale(.95)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.shortcuts-panel.hidden{display:none}.shortcuts-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-hover) 100%);border-bottom:1px solid var(--border)}.shortcuts-header h2{margin:0;font-size:1.2rem;color:#fff}.shortcuts-close{background:#fff3;border:none;color:#fff;width:32px;height:32px;border-radius:50%;font-size:1.2rem;cursor:pointer;transition:all .2s}.shortcuts-close:hover{background:#ffffff4d;transform:scale(1.1)}.shortcuts-content{padding:20px;max-height:60vh;overflow-y:auto;display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.shortcuts-group{background:var(--bg-card-light);padding:15px;border-radius:10px}.shortcuts-group h3{margin:0 0 12px;font-size:.9rem;color:var(--primary-light);text-transform:uppercase;letter-spacing:.5px}.shortcut-row{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:.85rem;color:var(--text-muted)}.shortcut-row span{margin-left:auto;color:var(--text)}kbd{background:var(--bg-dark);border:1px solid var(--border);border-radius:4px;padding:3px 8px;font-family:monospace;font-size:.8rem;color:var(--text);box-shadow:0 2px 0 var(--border)}.context-menu{position:fixed;background:var(--bg-card);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow-lg);z-index:10001;min-width:180px;padding:6px 0;animation:contextMenuFadeIn .15s ease-out}@keyframes contextMenuFadeIn{0%{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;padding:10px 16px;cursor:pointer;transition:background .15s;color:var(--text);font-size:.9rem}.context-menu-item:hover{background:var(--primary)}.context-menu-item.danger:hover{background:var(--danger)}.context-icon{font-size:1rem;width:20px;text-align:center}.context-menu-divider{height:1px;background:var(--border);margin:6px 10px}.drag-preview{position:fixed;pointer-events:none;z-index:9999;background:var(--bg-card);border:2px solid var(--primary);border-radius:10px;padding:10px 15px;display:flex;align-items:center;gap:10px;box-shadow:var(--shadow-lg);opacity:.9;transform:translate(-50%,-50%)}.drag-preview.hidden{display:none}.drag-preview-icon{font-size:1.5rem}.drag-preview-name{font-size:.9rem;color:var(--text);white-space:nowrap}.help-btn{position:fixed;bottom:20px;right:20px;width:48px;height:48px;border-radius:50%;background:var(--primary);border:none;color:#fff;font-size:1.5rem;font-weight:700;cursor:pointer;box-shadow:var(--shadow-lg);transition:all .2s;z-index:1000}.help-btn:hover{background:var(--primary-hover);transform:scale(1.1);box-shadow:var(--shadow-xl),0 0 20px var(--glow-primary)}[data-tooltip]{position:relative}[data-tooltip]:after{content:attr(data-tooltip);position:absolute;bottom:100%;left:50%;transform:translate(-50%);background:var(--bg-dark);color:var(--text);padding:6px 12px;border-radius:6px;font-size:.8rem;white-space:nowrap;opacity:0;visibility:hidden;transition:all .2s;pointer-events:none;z-index:10000;box-shadow:var(--shadow-md);border:1px solid var(--border)}[data-tooltip]:hover:after{opacity:1;visibility:visible;bottom:calc(100% + 8px)}.ai-progress{position:relative;width:100%;height:4px;background:var(--bg-card-light);border-radius:2px;overflow:hidden;margin-top:10px}.ai-progress-bar{height:100%;background:linear-gradient(90deg,var(--primary),var(--secondary),var(--primary));background-size:200% 100%;animation:progressShimmer 1.5s ease-in-out infinite;border-radius:2px}@keyframes progressShimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.ai-progress-text{text-align:center;font-size:.8rem;color:var(--text-muted);margin-top:8px}.ai-progress-steps{display:flex;justify-content:space-between;margin-top:10px;padding:0 5px}.ai-step{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:.75rem;color:var(--text-muted);opacity:.5;transition:all .3s}.ai-step.active{opacity:1;color:var(--primary-light)}.ai-step.completed{opacity:1;color:var(--secondary)}.ai-step-icon{width:24px;height:24px;border-radius:50%;background:var(--bg-card-light);display:flex;align-items:center;justify-content:center;font-size:.8rem;transition:all .3s}.ai-step.active .ai-step-icon{background:var(--primary);box-shadow:0 0 10px var(--glow-primary)}.ai-step.completed .ai-step-icon{background:var(--secondary)}.furniture-item{position:relative}.furniture-item:before{content:attr(data-name);position:absolute;bottom:-30px;left:50%;transform:translate(-50%);background:var(--bg-dark);color:var(--text);padding:4px 10px;border-radius:4px;font-size:.75rem;white-space:nowrap;opacity:0;visibility:hidden;transition:all .2s;pointer-events:none;z-index:100}.furniture-item:hover:before{opacity:1;visibility:visible;bottom:-35px}