.calculator{margin:0 auto;max-width:700px;padding:20px 15px}.calculator h1{color:#fff;font-size:1.8rem;margin-bottom:20px;text-align:center;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.calculator-section{background:#fff;border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,.1);margin-bottom:15px;padding:15px}.calculator-section h2{color:#333;font-size:1.2rem;margin-bottom:12px;text-align:center}.size-inputs{display:flex;flex-wrap:wrap;gap:20px;margin-bottom:20px}.input-group{flex:1;min-width:250px}.input-group label{color:#666;display:block;margin-bottom:10px}.input-group input[type=range]{margin-bottom:10px;width:100%}.input-group span{color:#007bff;font-weight:700}.popular-sizes{margin-top:20px}.popular-sizes h3{color:#666;margin-bottom:15px}.complexity-buttons,.people-buttons,.size-buttons,.technique-buttons{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.size-info{background-color:rgba(0,0,0,.03);border-radius:6px;margin-top:12px;padding:8px}.size-info p{font-style:italic;margin:0}.calculator-section button{background:#fff;border:2px solid #e0e0e0;border-radius:6px;color:#333;cursor:pointer;font-size:.95rem;min-width:90px;padding:10px 16px;transition:all .3s ease}.calculator-section button:hover{color:#007bff}.calculator-section button.active,.calculator-section button:hover{border-color:#007bff;box-shadow:0 2px 6px rgba(0,123,255,.2);transform:translateY(-2px)}.calculator-section button.active{background:#007bff;color:#fff}.calculator-section button:disabled{border-color:#e0e0e0;box-shadow:none;cursor:not-allowed;opacity:.5;transform:none}.calculator-section button:disabled:hover{border-color:#e0e0e0;box-shadow:none;color:#333;transform:none}.calculator-result{background:#f8f9fa;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.1);margin-top:15px;padding:20px;text-align:center}.calculator-result h2{color:#333;font-size:1.3rem;margin-bottom:12px}.cost{color:#007bff;font-size:2.2rem;font-weight:700;margin-bottom:12px}.disclaimer{color:#666;font-size:.8rem;font-style:italic;line-height:1.2;margin:0 auto;max-width:500px}.promotion-info{animation:promotion-pulse 2s infinite;background-color:#ba65b7;border:2px solid #9c4599;border-radius:8px;margin:15px 0;padding:12px 16px;text-align:center}.top-promotion{margin-bottom:30px}.promotion-info-large{background-color:#ba65b7;border-width:3px;padding:20px}.promotion-details{margin-top:10px}.promotion-list{display:inline-block;list-style:none;margin:10px 0 0;padding:0;text-align:left}.promotion-list li{align-items:center;color:#fff;display:flex;font-size:1rem;gap:8px;margin:8px 0;text-shadow:1px 1px 2px rgba(0,0,0,.1)}.promotion-title{color:#fff;font-size:1.2rem;font-weight:600;letter-spacing:.5px;margin:0 0 8px;text-shadow:1px 1px 2px rgba(0,0,0,.2);text-transform:uppercase}.promotion-text{color:#fff;font-size:1rem;margin:0}.promotion-note{color:#f0fdf4;font-size:.9rem;font-style:italic;margin:12px 0 0}@keyframes promotion-pulse{0%{box-shadow:0 0 0 0 rgba(186,101,183,.6)}70%{box-shadow:0 0 0 10px rgba(186,101,183,0)}to{box-shadow:0 0 0 0 rgba(186,101,183,0)}}@media (max-width:768px){.calculator{max-width:100%;padding:100px 10px 10px}.calculator h1{font-size:1.5rem}.calculator-section{padding:10px}.calculator-section h2{font-size:1rem}.calculator-section button{font-size:.85rem;padding:8px 12px}.calculator-result h2{font-size:1.1rem}.cost{font-size:1.8rem}}