.pool-calculator{max-width:900px;margin:0 auto;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif}.pool-hero{background:#fff;border:2px solid #0288d1;border-radius:12px;padding:30px;margin-bottom:30px;text-align:center}.pool-hero h1{color:#01579b;font-size:28px;margin:0 0 10px 0}.pool-hero p{color:#546e7a;margin:0}.pool-hero .standard-badge{display:inline-block;background:#e1f5fe;color:#0277bd;padding:5px 15px;border-radius:20px;font-size:12px;margin-top:15px}.pool-steps-indicator{display:flex;justify-content:center;gap:10px;margin-bottom:30px}.pool-step-indicator{display:flex;align-items:center;gap:8px;padding:10px 20px;background:#f5f5f5;border-radius:25px;color:#9e9e9e;font-size:14px;transition:all .3s ease}.pool-step-indicator .step-number{width:24px;height:24px;border-radius:50%;background:#e0e0e0;color:#757575;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:12px}.pool-step-indicator.active{background:#e1f5fe;color:#01579b}.pool-step-indicator.active .step-number{background:#0288d1;color:#fff}.pool-step-indicator.completed{background:#e8f5e9;color:#2e7d32}.pool-step-indicator.completed .step-number{background:#4caf50;color:#fff}.pool-step{display:none;background:#fff;border:1px solid #e0e0e0;border-radius:12px;padding:30px;margin-bottom:20px}.pool-step.active{display:block}.pool-step h2{color:#37474f;font-size:20px;margin:0 0 20px 0;padding-bottom:15px;border-bottom:1px solid #e0e0e0}.pool-form-group{margin-bottom:20px}.pool-form-group label{display:block;font-weight:500;color:#37474f;margin-bottom:8px}.pool-form-group input[type=number],.pool-form-group select{width:100%;padding:12px 15px;border:1px solid #cfd8dc;border-radius:8px;font-size:16px;transition:border-color .2s}.pool-form-group input:focus,.pool-form-group select:focus{outline:0;border-color:#0288d1}.pool-shapes{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:15px}.pool-shape-option{position:relative}.pool-shape-option input{position:absolute;opacity:0}.pool-shape-option label{display:flex;flex-direction:column;align-items:center;padding:20px;border:2px solid #e0e0e0;border-radius:12px;cursor:pointer;transition:all .2s}.pool-shape-option input:checked+label{border-color:#0288d1;background:#e1f5fe}.pool-shape-option .shape-icon{width:60px;height:40px;margin-bottom:10px;background:#cfd8dc;border-radius:4px}.pool-shape-option .shape-icon-rectangular{border-radius:4px}.pool-shape-option .shape-icon-oval{border-radius:50%}.pool-shape-option .shape-icon-round{border-radius:50%;width:40px}.pool-shape-option .shape-name{font-weight:500;color:#37474f}.pool-dimensions{display:flex;gap:15px;flex-wrap:wrap}.pool-dimensions .pool-form-group{flex:1;min-width:150px}.pool-dimension-unit{color:#78909c;font-size:12px;margin-top:5px}#volume_preview{background:#e1f5fe;padding:15px 20px;border-radius:8px;font-size:18px;font-weight:600;color:#01579b;text-align:center;margin-top:20px}.pool-filters{display:flex;flex-direction:column;gap:10px}.pool-filter-option{position:relative}.pool-filter-option input{position:absolute;opacity:0}.pool-filter-option label{display:block;padding:15px 20px;border:2px solid #e0e0e0;border-radius:10px;cursor:pointer;transition:all .2s}.pool-filter-option input:checked+label{border-color:#0288d1;background:#e1f5fe}.pool-filter-option label strong{display:block;color:#37474f;margin-bottom:5px}.pool-filter-option .filter-desc{display:block;color:#78909c;font-size:13px}.pool-filter-option .filter-degree{display:block;color:#0288d1;font-size:12px;margin-top:5px}.pool-step-nav{display:flex;justify-content:space-between;margin-top:30px;padding-top:20px;border-top:1px solid #e0e0e0}.pool-step-btn{padding:12px 30px;border:none;border-radius:8px;font-size:16px;cursor:pointer;transition:all .2s}.pool-step-btn[data-direction=prev]{background:#f5f5f5;color:#546e7a}#pool_calculate_btn,.pool-step-btn[data-direction=next]{background:#0288d1;color:#fff}.pool-step-btn:hover{opacity:.9}#pool_calculate_btn{width:100%;padding:15px;font-size:18px}#pool_calculate_btn:disabled{background:#b0bec5;cursor:not-allowed}#pool_errors{display:none;margin-bottom:20px}.pool-error{background:#ffebee;border:1px solid #ef9a9a;color:#c62828;padding:12px 15px;border-radius:8px;margin-bottom:10px}#pool_results{display:none}.pool-results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-bottom:30px}.pool-result-card{background:#fff;border:1px solid #e0e0e0;border-radius:12px;overflow:hidden}.pool-result-card .card-header{background:#f5f5f5;padding:15px 20px;font-weight:600;color:#37474f;border-bottom:1px solid #e0e0e0}.pool-result-card .card-header i{color:#0288d1;margin-right:10px}.pool-result-card .card-body{padding:20px}.result-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid #f5f5f5}.result-row:last-child{border-bottom:none}.result-row span{color:#78909c}.result-row strong{color:#37474f}.result-row.highlight{background:#e1f5fe;margin:0 -20px;padding:12px 20px}.result-row.highlight strong{color:#01579b;font-size:16px}.result-row.small{font-size:12px}.heaters-section{margin-top:15px;padding-top:15px;border-top:1px solid #e0e0e0}.heaters-title{font-weight:500;color:#37474f;margin-bottom:10px}.pool-heater-option{background:#fafafa;padding:12px 15px;border-radius:8px;margin-bottom:10px}.pool-heater-option strong{display:block;color:#37474f;margin-bottom:5px}.pool-heater-option span{display:block;color:#78909c;font-size:13px}.pool-heater-option .heater-desc{color:#0288d1;font-size:12px;margin-top:5px}.pool-warnings{margin-bottom:20px}.pool-warning{background:#fff3e0;border:1px solid #ffcc80;color:#e65100;padding:12px 15px;border-radius:8px;margin-bottom:10px}.pool-warning i{margin-right:10px}.pool-results-footer{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:15px;padding-top:20px;border-top:1px solid #e0e0e0}.standard-ref{color:#78909c;font-size:13px}.standard-ref i{margin-right:5px}.pool-actions{display:flex;gap:10px}.pool-actions .btn{padding:12px 25px;border-radius:8px;font-size:14px;cursor:pointer;border:none;transition:all .2s}.pool-actions .btn-primary{background:#0288d1;color:#fff}.pool-actions .btn-default{background:#f5f5f5;color:#37474f;border:1px solid #e0e0e0}.pool-quick-calcs{margin:40px 0}.pool-quick-calcs h3{font-size:22px;color:#01579b;margin-bottom:20px}.pool-quick-calcs .quick-calcs-group{margin-bottom:24px}.pool-quick-calcs .quick-calcs-group-title{font-size:15px;font-weight:600;color:#37474f;padding-bottom:8px;border-bottom:2px solid #0288d1;margin-bottom:12px}.pool-quick-calcs .quick-calcs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.pool-quick-calcs .quick-calcs-grid a{display:block;padding:10px 14px;background:#f8fafc;border:1px solid #e1f5fe;border-radius:8px;color:#01579b;text-decoration:none;font-size:13px;transition:all .2s}.pool-quick-calcs .quick-calcs-grid a:hover{background:#0288d1;color:#fff;border-color:#0288d1}.pool-quick-calcs .quick-calcs-grid .quick-calc-current{display:block;padding:10px 14px;background:#0288d1;border:1px solid #0288d1;border-radius:8px;color:#fff;font-size:13px;font-weight:600;cursor:default}.pool-faq-block{margin:40px 0;max-width:900px}.pool-faq-block h2{font-size:22px;margin-bottom:20px;color:#01579b}.faq-item{margin-bottom:16px;padding:15px 20px;background:#f0f4fa;border-radius:8px;border-left:3px solid #0288d1}.faq-q{font-size:16px;font-weight:600;color:#1a1a1a;margin-bottom:8px}.faq-item p{font-size:14px;line-height:1.6;color:#555;margin:0}.faq-item a{color:#0277bd;text-decoration:none}.faq-item a:hover{text-decoration:underline}@media (max-width:768px){.pool-hero{padding:20px}.pool-hero h1{font-size:22px}.pool-steps-indicator{flex-wrap:wrap}.pool-step-indicator{padding:8px 15px;font-size:12px}.pool-step-indicator .step-label{display:none}.pool-step{padding:20px}.pool-dimensions{flex-direction:column}.pool-results-footer{flex-direction:column;text-align:center}.pool-actions{width:100%;flex-direction:column}.pool-actions .btn{width:100%}.pool-quick-calcs .quick-calcs-grid{grid-template-columns:1fr}}