:root{--mtc-primary:#2563eb;--mtc-primary-dark:#1d4ed8;--mtc-primary-light:#3b82f6;--mtc-secondary:#64748b;--mtc-success:#10b981;--mtc-warning:#f59e0b;--mtc-danger:#ef4444;--mtc-bg-dark:#0f172a;--mtc-bg-card:#1e293b;--mtc-bg-input:#334155;--mtc-border:#475569;--mtc-text:#f1f5f9;--mtc-text-muted:#94a3b8;--mtc-glass-bg:rgba(30, 41, 59, 0.8);--mtc-glass-border:rgba(255, 255, 255, 0.1);--mtc-radius:12px;--mtc-radius-lg:16px;--mtc-shadow:0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);--mtc-shadow-lg:0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);--mtc-font:'Inter', -apple-system, BlinkMacSystemFont, sans-serif}.mtc-calculator{font-family:var(--mtc-font);background:linear-gradient(135deg,var(--mtc-bg-dark) 0%,#1a1a2e 50%,#16213e 100%);color:var(--mtc-text);padding:40px;border-radius:var(--mtc-radius-lg);max-width:1400px;margin:0 auto;box-shadow:var(--mtc-shadow-lg);overflow:hidden}.mtc-calculator.mtc-full-width{max-width:100%;border-radius:0}.mtc-calculator *{box-sizing:border-box}.mtc-header{text-align:center;margin-bottom:40px;padding-bottom:30px;border-bottom:1px solid var(--mtc-glass-border)}.mtc-title{font-size:2.5rem;font-weight:700;margin:0 0 8px;background:linear-gradient(135deg,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:#fff0;background-clip:text}.mtc-subtitle{font-size:1.1rem;color:var(--mtc-text-muted);margin:0 0 24px}.mtc-controls{display:flex;justify-content:center;align-items:center;gap:24px;flex-wrap:wrap;margin-bottom:20px}.mtc-lang-toggle{display:flex;background:var(--mtc-bg-input);border-radius:8px;padding:4px;gap:4px}.mtc-lang-btn{padding:8px 16px;border:none;background:#fff0;color:var(--mtc-text-muted);border-radius:6px;cursor:pointer;font-weight:500;font-size:14px;transition:all 0.3s ease}.mtc-lang-btn:hover{color:var(--mtc-text)}.mtc-lang-btn.active{background:var(--mtc-primary);color:#fff}.mtc-market-toggle{display:flex;gap:8px}.mtc-market-btn{display:flex;align-items:center;gap:8px;padding:10px 20px;border:2px solid var(--mtc-border);background:var(--mtc-bg-card);color:var(--mtc-text);border-radius:10px;cursor:pointer;font-weight:500;font-size:14px;transition:all 0.3s ease}.mtc-market-btn:hover{border-color:var(--mtc-primary);transform:translateY(-2px)}.mtc-market-btn.active{border-color:var(--mtc-primary);background:linear-gradient(135deg,var(--mtc-primary),var(--mtc-primary-dark));box-shadow:0 4px 15px rgb(37 99 235 / .4)}.mtc-flag{font-size:1.2rem}.mtc-market-badge{display:inline-flex;align-items:center;gap:12px;background:var(--mtc-glass-bg);backdrop-filter:blur(10px);border:1px solid var(--mtc-glass-border);padding:12px 24px;border-radius:50px}.mtc-badge-icon{font-size:1.2rem}.mtc-badge-text{font-weight:600;color:var(--mtc-primary-light)}.mtc-badge-note{font-size:.85rem;color:var(--mtc-text-muted);padding-left:12px;border-left:1px solid var(--mtc-border)}.mtc-tabs{display:flex;justify-content:center;gap:8px;margin-bottom:30px;flex-wrap:wrap}.mtc-tab{display:flex;align-items:center;gap:10px;padding:14px 28px;border:none;background:var(--mtc-bg-card);color:var(--mtc-text-muted);border-radius:var(--mtc-radius);cursor:pointer;font-weight:500;font-size:15px;transition:all 0.3s ease}.mtc-tab:hover{background:var(--mtc-bg-input);color:var(--mtc-text);transform:translateY(-2px)}.mtc-tab.active{background:linear-gradient(135deg,var(--mtc-primary),var(--mtc-primary-dark));color:#fff;box-shadow:0 4px 15px rgb(37 99 235 / .4)}.mtc-tab-icon{font-size:1.3rem}.mtc-panels{margin-bottom:40px}.mtc-panel{display:none;background:var(--mtc-bg-card);border-radius:var(--mtc-radius-lg);padding:30px;box-shadow:var(--mtc-shadow);animation:fadeIn 0.3s ease}.mtc-panel.active{display:block}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.mtc-panel-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid var(--mtc-border)}.mtc-panel-header h2{margin:0;font-size:1.5rem;font-weight:600}.mtc-adjust-btn{display:flex;align-items:center;gap:8px;padding:10px 20px;border:1px solid var(--mtc-border);background:var(--mtc-bg-input);color:var(--mtc-text);border-radius:8px;cursor:pointer;font-weight:500;transition:all 0.3s ease}.mtc-adjust-btn:hover{border-color:var(--mtc-warning);color:var(--mtc-warning);transform:translateY(-2px)}.mtc-form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:30px}.mtc-full-width{grid-column:1 / -1}.mtc-input-group{display:flex;flex-direction:column;gap:8px}.mtc-input-group label{font-size:14px;font-weight:500;color:var(--mtc-text-muted)}.mtc-input-wrapper{display:flex;align-items:center;background:var(--mtc-bg-input);border:2px solid var(--mtc-border);border-radius:10px;overflow:hidden;transition:all 0.3s ease}.mtc-input-wrapper:focus-within{border-color:var(--mtc-primary);box-shadow:0 0 0 3px rgb(37 99 235 / .2)}.mtc-input-wrapper input{flex:1;padding:14px 16px;border:none;background:#fff0;color:var(--mtc-text);font-size:16px;font-weight:500;outline:none}.mtc-input-wrapper input::placeholder{color:var(--mtc-text-muted)}.mtc-unit{padding:14px 16px;background:rgb(0 0 0 / .2);color:var(--mtc-text-muted);font-weight:500;font-size:14px;min-width:50px;text-align:center}.mtc-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}.mtc-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border:none;border-radius:10px;font-weight:600;font-size:15px;cursor:pointer;transition:all 0.3s ease}.mtc-btn-primary{background:linear-gradient(135deg,var(--mtc-primary),var(--mtc-primary-dark));color:#fff;box-shadow:0 4px 15px rgb(37 99 235 / .4)}.mtc-btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgb(37 99 235 / .5)}.mtc-btn-secondary{background:var(--mtc-bg-input);color:var(--mtc-text);border:1px solid var(--mtc-border)}.mtc-btn-secondary:hover{background:var(--mtc-border);transform:translateY(-2px)}.mtc-btn-outline{background:#fff0;color:var(--mtc-text);border:1px solid var(--mtc-border)}.mtc-btn-outline:hover{border-color:var(--mtc-primary);color:var(--mtc-primary-light)}.mtc-results{margin-top:30px;padding-top:30px;border-top:1px solid var(--mtc-border);animation:fadeIn 0.3s ease}.mtc-results h3{margin:0 0 20px;font-size:1.2rem;color:var(--mtc-success)}.mtc-results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}.mtc-result-card{background:var(--mtc-bg-input);border-radius:10px;padding:20px;border:1px solid var(--mtc-border)}.mtc-result-card.highlight{border-color:var(--mtc-success);background:linear-gradient(135deg,rgb(16 185 129 / .1),rgb(16 185 129 / .05))}.mtc-result-label{font-size:13px;color:var(--mtc-text-muted);margin-bottom:8px}.mtc-result-value{font-size:1.8rem;font-weight:700;color:var(--mtc-text)}.mtc-result-unit{font-size:.9rem;color:var(--mtc-text-muted);margin-left:6px}.mtc-result-adjusted{display:inline-block;margin-top:8px;padding:4px 10px;background:var(--mtc-warning);color:#000;font-size:11px;font-weight:600;border-radius:4px}.mtc-boq-section{background:var(--mtc-bg-card);border-radius:var(--mtc-radius-lg);padding:30px;box-shadow:var(--mtc-shadow);animation:fadeIn 0.3s ease}.mtc-boq-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;flex-wrap:wrap;gap:16px}.mtc-boq-header h2{margin:0;font-size:1.4rem}.mtc-export-actions{display:flex;gap:12px;flex-wrap:wrap}.mtc-boq-table-wrapper{overflow-x:auto;margin-bottom:30px}.mtc-boq-table{width:100%;border-collapse:collapse;font-size:14px}.mtc-boq-table th,.mtc-boq-table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--mtc-border)}.mtc-boq-table th{background:var(--mtc-bg-input);font-weight:600;color:var(--mtc-text-muted);text-transform:uppercase;font-size:12px;letter-spacing:.5px}.mtc-boq-table tbody tr:hover{background:rgb(255 255 255 / .03)}.mtc-boq-table .adjusted-yes{color:var(--mtc-warning)}.mtc-assumptions{background:var(--mtc-bg-input);border-radius:var(--mtc-radius);padding:24px}.mtc-assumptions h3{margin:0 0 16px;font-size:1.1rem;color:var(--mtc-text-muted)}.mtc-assumptions-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}.mtc-assumption-item{display:flex;justify-content:space-between;padding:10px 16px;background:var(--mtc-bg-card);border-radius:8px;font-size:14px}.mtc-assumption-label{color:var(--mtc-text-muted)}.mtc-assumption-value{font-weight:600}.mtc-assumption-value.modified{color:var(--mtc-warning)}.mtc-modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgb(0 0 0 / .7);backdrop-filter:blur(5px);z-index:10000;align-items:center;justify-content:center;padding:20px}.mtc-modal.active{display:flex}.mtc-modal-content{background:var(--mtc-bg-card);border-radius:var(--mtc-radius-lg);width:100%;max-width:600px;max-height:90vh;overflow:hidden;box-shadow:var(--mtc-shadow-lg);animation:modalSlideIn 0.3s ease}@keyframes modalSlideIn{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.mtc-modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid var(--mtc-border)}.mtc-modal-header h3{margin:0;font-size:1.2rem}.mtc-modal-close{width:36px;height:36px;border:none;background:var(--mtc-bg-input);color:var(--mtc-text);border-radius:8px;font-size:20px;cursor:pointer;transition:all 0.3s ease}.mtc-modal-close:hover{background:var(--mtc-danger);color:#fff}.mtc-modal-body{padding:24px;max-height:60vh;overflow-y:auto}.mtc-modal-body .mtc-input-group{margin-bottom:20px}.mtc-modal-footer{display:flex;justify-content:space-between;padding:20px 24px;border-top:1px solid var(--mtc-border);gap:16px}.mtc-checkbox-group{display:flex;align-items:center;gap:12px}.mtc-checkbox{width:20px;height:20px;accent-color:var(--mtc-primary);cursor:pointer}.mtc-select{width:100%;padding:12px 16px;background:var(--mtc-bg-input);border:2px solid var(--mtc-border);border-radius:8px;color:var(--mtc-text);font-size:14px;cursor:pointer}.mtc-select:focus{outline:none;border-color:var(--mtc-primary)}.mtc-toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--mtc-success);color:#fff;padding:16px 32px;border-radius:10px;font-weight:500;box-shadow:var(--mtc-shadow-lg);z-index:10001;opacity:0;transition:all 0.3s ease}.mtc-toast.show{transform:translateX(-50%) translateY(0);opacity:1}.mtc-paint-layout{display:grid;grid-template-columns:1fr 1fr;gap:30px}.mtc-paint-inputs,.mtc-paint-preview{display:flex;flex-direction:column;gap:24px}.mtc-section{background:var(--mtc-bg-input);border-radius:var(--mtc-radius);padding:20px}.mtc-section-title{margin:0 0 16px;font-size:1rem;font-weight:600;color:var(--mtc-text)}.mtc-section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.mtc-section-header .mtc-section-title{margin:0}.mtc-scope-selector{display:flex;gap:8px}.mtc-scope-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px 12px;border:2px solid var(--mtc-border);background:var(--mtc-bg-card);color:var(--mtc-text-muted);border-radius:10px;cursor:pointer;transition:all 0.3s ease}.mtc-scope-btn:hover{border-color:var(--mtc-primary);color:var(--mtc-text)}.mtc-scope-btn.active{border-color:var(--mtc-primary);background:linear-gradient(135deg,rgb(37 99 235 / .2),rgb(37 99 235 / .1));color:var(--mtc-primary-light)}.mtc-scope-icon{font-size:1.5rem}.mtc-openings-total,.mtc-advanced-total{font-size:14px;font-weight:600;color:var(--mtc-warning);background:rgb(245 158 11 / .15);padding:6px 12px;border-radius:6px}.mtc-openings-actions,.mtc-advanced-actions{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}.mtc-btn-sm{padding:8px 14px;font-size:13px}.mtc-btn-accent{background:linear-gradient(135deg,var(--mtc-warning),#d97706);color:#000;border:none}.mtc-btn-accent:hover{transform:translateY(-2px);box-shadow:0 4px 15px rgb(245 158 11 / .4)}.mtc-btn-ghost{background:#fff0;color:var(--mtc-danger);border:none;padding:8px 12px}.mtc-btn-ghost:hover{background:rgb(239 68 68 / .1)}.mtc-openings-list{max-height:200px;overflow-y:auto;margin-bottom:12px}.mtc-openings-empty,.mtc-advanced-empty{text-align:center;color:var(--mtc-text-muted);padding:20px;font-size:13px;font-style:italic}.mtc-opening-item,.mtc-advanced-item{display:flex;align-items:center;gap:12px;padding:12px;background:var(--mtc-bg-card);border-radius:8px;margin-bottom:8px;animation:fadeIn 0.2s ease}.mtc-opening-icon{font-size:1.5rem;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--mtc-bg-input);border-radius:8px}.mtc-opening-details{flex:1}.mtc-opening-name{font-weight:500;margin-bottom:4px}.mtc-opening-dims{font-size:12px;color:var(--mtc-text-muted)}.mtc-opening-area{font-weight:600;color:var(--mtc-success);font-size:14px;min-width:70px;text-align:right}.mtc-opening-inline-inputs{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}.mtc-inline-field{display:flex;align-items:center;background:var(--mtc-bg-input);border:1px solid var(--mtc-border);border-radius:6px;overflow:hidden;transition:all 0.2s ease}.mtc-inline-field:focus-within{border-color:var(--mtc-primary);box-shadow:0 0 0 2px rgb(37 99 235 / .2)}.mtc-inline-input{width:50px;padding:6px 8px;border:none;background:#fff0;color:var(--mtc-text);font-size:13px;font-weight:500;text-align:center;outline:none}.mtc-inline-input::-webkit-inner-spin-button,.mtc-inline-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.mtc-inline-input[type=number]{-moz-appearance:textfield;appearance:textfield}.mtc-inline-unit{padding:6px 8px;background:rgb(0 0 0 / .2);color:var(--mtc-text-muted);font-size:11px;font-weight:500}.mtc-inline-x{color:var(--mtc-text-muted);font-size:12px;font-weight:500}.mtc-qty-field .mtc-inline-input{width:40px}.mtc-opening-actions{display:flex;gap:4px}.mtc-opening-edit,.mtc-opening-delete{width:32px;height:32px;border:none;background:#fff0;color:var(--mtc-text-muted);border-radius:6px;cursor:pointer;transition:all 0.2s ease;display:flex;align-items:center;justify-content:center;font-size:14px}.mtc-opening-edit:hover{background:var(--mtc-primary);color:#fff}.mtc-opening-delete:hover{background:var(--mtc-danger);color:#fff}.mtc-opening-item.editing{flex-wrap:wrap;padding:16px 12px;background:linear-gradient(135deg,rgb(37 99 235 / .1),rgb(37 99 235 / .05));border:1px solid var(--mtc-primary)}.mtc-opening-edit-form{flex:1}.mtc-opening-edit-form .mtc-opening-name{margin-bottom:12px;font-weight:600;color:var(--mtc-primary-light)}.mtc-edit-inputs{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.mtc-edit-field{display:flex;align-items:center;gap:6px;background:var(--mtc-bg-input);border:1px solid var(--mtc-border);border-radius:6px;padding:4px 8px}.mtc-edit-field label{font-size:11px;font-weight:600;color:var(--mtc-text-muted);min-width:14px}.mtc-edit-input{width:60px;padding:6px 8px;border:none;background:#fff0;color:var(--mtc-text);font-size:14px;font-weight:500;outline:none;text-align:center}.mtc-edit-input:focus{color:var(--mtc-primary-light)}.mtc-edit-field span{font-size:12px;color:var(--mtc-text-muted)}.mtc-edit-x{color:var(--mtc-text-muted);font-weight:500}.mtc-opening-edit-actions{display:flex;gap:6px;margin-left:auto}.mtc-edit-save,.mtc-edit-cancel{width:36px;height:36px;border:none;border-radius:8px;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;transition:all 0.2s ease}.mtc-edit-save{background:var(--mtc-success);color:#fff}.mtc-edit-save:hover{background:#059669;transform:scale(1.05)}.mtc-edit-cancel{background:var(--mtc-bg-input);color:var(--mtc-text-muted);border:1px solid var(--mtc-border)}.mtc-edit-cancel:hover{background:var(--mtc-danger);color:#fff;border-color:var(--mtc-danger)}.mtc-collapsible{width:100%;display:flex;align-items:center;gap:10px;padding:16px 20px;background:var(--mtc-bg-input);border:1px solid var(--mtc-border);border-radius:var(--mtc-radius);color:var(--mtc-text);font-weight:500;cursor:pointer;transition:all 0.3s ease}.mtc-collapsible:hover{background:var(--mtc-bg-card);border-color:var(--mtc-primary)}.mtc-collapsible.active{border-radius:var(--mtc-radius) var(--mtc-radius) 0 0}.mtc-collapsible-icon{transition:transform 0.3s ease}.mtc-collapsible.active .mtc-collapsible-icon{transform:rotate(90deg)}.mtc-collapsible-content{background:var(--mtc-bg-input);border:1px solid var(--mtc-border);border-top:none;border-radius:0 0 var(--mtc-radius) var(--mtc-radius);padding:20px}.mtc-room-preview{background:var(--mtc-bg-input);border-radius:var(--mtc-radius);padding:20px}.mtc-preview-badge{font-size:11px;font-weight:600;color:var(--mtc-success);background:rgb(16 185 129 / .15);padding:4px 10px;border-radius:4px}.mtc-floor-plan{background:#0a0f1a;border-radius:8px;overflow:hidden}.mtc-room-visual{height:300px;display:flex;flex-direction:column;align-items:center;justify-content:center;margin-bottom:16px;position:relative}.mtc-room-svg{width:100%;height:100%;max-height:280px}.mtc-drawing-warnings{position:absolute;bottom:10px;left:10px;right:10px;z-index:10}.mtc-warning-item{display:flex;align-items:center;gap:8px;padding:10px 14px;border-radius:8px;font-size:12px;font-weight:500;margin-bottom:6px;animation:slideIn 0.3s ease;backdrop-filter:blur(10px)}.mtc-warning-error{background:rgb(239 68 68 / .95);color:#fff;border-left:4px solid #dc2626}.mtc-warning-warn{background:rgb(245 158 11 / .9);color:#1e293b;border-left:4px solid #d97706}@keyframes slideIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.mtc-export-buttons{display:flex;justify-content:center;gap:8px;margin-top:12px;padding-top:12px;border-top:1px solid var(--mtc-border)}.mtc-export-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;background:var(--mtc-bg-card);border:1px solid var(--mtc-border);border-radius:6px;color:var(--mtc-text);font-size:12px;font-weight:500;cursor:pointer;transition:all 0.2s ease}.mtc-export-btn:hover{background:var(--mtc-primary);border-color:var(--mtc-primary);color:#fff}.mtc-auto-update-note{display:flex;align-items:center;justify-content:center;gap:8px;padding:10px 16px;margin-top:12px;background:rgb(16 185 129 / .1);border:1px solid rgb(16 185 129 / .3);border-radius:8px;color:var(--mtc-success);font-size:12px;font-weight:500}.mtc-auto-icon{font-size:14px;animation:spin 2s linear infinite;animation-play-state:paused}.mtc-auto-update-note:hover .mtc-auto-icon{animation-play-state:running}@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}.mtc-room-info{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:16px}.mtc-room-dimensions{display:flex;flex-wrap:wrap;justify-content:center;gap:6px}.mtc-dim-item{display:flex;flex-direction:column;align-items:center;background:var(--mtc-bg-card);padding:6px 10px;border-radius:6px;min-width:55px}.mtc-dim-label{font-size:10px;color:var(--mtc-text-muted);font-weight:500}.mtc-dim-value{font-size:12px;font-weight:600;color:var(--mtc-text)}.mtc-room-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:6px}.mtc-stat-item{display:flex;flex-direction:column;align-items:center;background:var(--mtc-bg-card);padding:6px 10px;border-radius:6px;min-width:60px}.mtc-stat-item span:first-child{font-size:11px;color:var(--mtc-text-muted)}.mtc-stat-value{font-size:14px;font-weight:600;color:var(--mtc-success)}.mtc-preview-legend{display:flex;justify-content:center;flex-wrap:wrap;gap:16px;padding-top:12px;border-top:1px solid var(--mtc-border)}.mtc-legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--mtc-text-muted)}.mtc-legend-color{width:12px;height:12px;border-radius:3px}.mtc-wall{position:absolute;background:linear-gradient(135deg,rgb(37 99 235 / .3),rgb(37 99 235 / .15));border:1px solid var(--mtc-primary);display:flex;align-items:center;justify-content:center;transition:all 0.3s ease}.mtc-wall-label{font-size:12px;font-weight:600;color:var(--mtc-primary-light);background:rgb(0 0 0 / .5);padding:2px 6px;border-radius:4px}.mtc-wall-back{width:100%;height:100%;transform:translateZ(-60px)}.mtc-wall-left{width:60px;height:100%;left:0;transform:rotateY(90deg) translateZ(0);transform-origin:left center}.mtc-wall-right{width:60px;height:100%;right:0;transform:rotateY(-90deg) translateZ(0);transform-origin:right center}.mtc-wall-front{width:100%;height:100%;transform:translateZ(0);background:linear-gradient(135deg,rgb(37 99 235 / .15),rgb(37 99 235 / .05))}.mtc-ceiling{position:absolute;width:100%;height:60px;top:0;transform:rotateX(90deg) translateZ(0);transform-origin:top center;background:linear-gradient(135deg,rgb(139 92 246 / .3),rgb(139 92 246 / .15));border:1px solid #8b5cf6;display:flex;align-items:center;justify-content:center}.mtc-ceiling-label{font-size:10px;color:#a78bfa;font-weight:600}.mtc-floor{position:absolute;width:100%;height:60px;bottom:0;transform:rotateX(-90deg) translateZ(0);transform-origin:bottom center;background:linear-gradient(135deg,rgb(100 116 139 / .3),rgb(100 116 139 / .15));border:1px solid var(--mtc-border)}.mtc-wall.scope-active{background:linear-gradient(135deg,rgb(16 185 129 / .4),rgb(16 185 129 / .2));border-color:var(--mtc-success)}.mtc-ceiling.scope-active{background:linear-gradient(135deg,rgb(16 185 129 / .4),rgb(16 185 129 / .2));border-color:var(--mtc-success)}.mtc-wall-openings{position:absolute;inset:0;display:flex;flex-wrap:wrap;gap:4px;padding:8px;align-items:flex-end;justify-content:center}.mtc-preview-opening{background:rgb(0 0 0 / .6);border:1px solid var(--mtc-warning);border-radius:2px;display:flex;align-items:center;justify-content:center;font-size:10px}.mtc-preview-door{width:12px;height:30px}.mtc-preview-window{width:18px;height:18px}.mtc-room-dimensions{display:flex;justify-content:center;gap:16px;font-size:13px;color:var(--mtc-text-muted)}.mtc-room-dimensions span{background:var(--mtc-bg-card);padding:6px 12px;border-radius:6px}.mtc-breakdown{margin-top:20px;padding-top:20px;border-top:1px solid var(--mtc-border)}.mtc-breakdown h4{margin:0 0 12px;font-size:14px;color:var(--mtc-text-muted)}.mtc-breakdown-content{background:var(--mtc-bg-card);border-radius:8px;overflow:hidden}.mtc-breakdown-row{display:flex;justify-content:space-between;padding:10px 16px;border-bottom:1px solid var(--mtc-border);font-size:13px}.mtc-breakdown-row:last-child{border-bottom:none}.mtc-breakdown-row.total{background:linear-gradient(135deg,rgb(16 185 129 / .1),rgb(16 185 129 / .05));font-weight:600}.mtc-breakdown-row.deduction{color:var(--mtc-danger)}.mtc-breakdown-label{color:var(--mtc-text-muted)}.mtc-breakdown-value{font-weight:500}.mtc-packages-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.mtc-package-item{display:flex;align-items:center;gap:6px;background:var(--mtc-bg-card);padding:8px 12px;border-radius:8px;font-size:13px}.mtc-package-count{font-weight:700;color:var(--mtc-primary-light)}.mtc-package-size{color:var(--mtc-text-muted)}@media (max-width:768px){.mtc-calculator{padding:24px 16px}.mtc-title{font-size:1.8rem}.mtc-controls{flex-direction:column}.mtc-market-badge{flex-direction:column;text-align:center;gap:8px}.mtc-badge-note{border-left:none;padding-left:0;border-top:1px solid var(--mtc-border);padding-top:8px}.mtc-tabs{flex-direction:column}.mtc-tab{width:100%;justify-content:center}.mtc-form-grid{grid-template-columns:1fr}.mtc-panel{padding:20px}.mtc-boq-header{flex-direction:column;align-items:flex-start}.mtc-export-actions{width:100%}.mtc-export-actions .mtc-btn{flex:1}.mtc-modal-footer{flex-direction:column}.mtc-paint-layout{grid-template-columns:1fr}.mtc-scope-selector{flex-direction:column}.mtc-scope-btn{flex-direction:row;justify-content:center}.mtc-openings-actions{justify-content:center}.mtc-room-visual{height:160px}.mtc-room-3d{transform:rotateX(-10deg) rotateY(-20deg) scale(.9)}.mtc-room-dimensions{flex-wrap:wrap;gap:8px}}@media print{.mtc-calculator{background:white!important;color:black!important;box-shadow:none!important}.mtc-controls,.mtc-tabs,.mtc-actions,.mtc-adjust-btn,.mtc-export-actions,.mtc-modal{display:none!important}.mtc-panel{display:block!important;background:white!important;box-shadow:none!important}.mtc-boq-section{display:block!important;background:white!important;box-shadow:none!important}.mtc-boq-table th,.mtc-boq-table td{border:1px solid #ccc;color:#000}}