:root{--tb-blue:#003366;--tb-blue-dark:#002244;--tb-yellow:#FFD700;--tb-yellow-hover:#e6c200;--tb-gray-light:#f2f2f2;--tb-gray-border:#ddd;--tb-text:#333;--tb-text-light:#666}.tb-calc-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:9999;align-items:center;justify-content:center;padding:16px;box-sizing:border-box;overflow-y:auto}.tb-calc-overlay.is-open{display:flex}.tb-calc-popup{position:relative;background:#fff;max-width:420px;width:100%;min-width:0;margin:auto;border:1px solid var(--tb-gray-border);box-shadow:0 4px 20px rgba(0,0,0,.15);font-family:'Montserrat','Roboto','Open Sans',Arial,sans-serif}@media (max-width:480px){.tb-calc-overlay{padding:12px;align-items:flex-start;padding-top:20px}.tb-calc-popup{max-width:100%}}.tb-calc-close{position:absolute;top:8px;right:8px;width:44px;height:44px;min-width:44px;min-height:44px;padding:0;border:none;background:transparent;color:var(--tb-blue);font-size:28px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}.tb-calc-close:hover{color:var(--tb-blue-dark)}.tb-calc-close:focus{outline:2px solid var(--tb-blue);outline-offset:2px}.tb-calc-header{background:var(--tb-gray-light);padding:20px 50px 20px 20px;border-bottom:1px solid var(--tb-gray-border)}.tb-calc-title{margin:0;font-size:1.25rem;font-weight:700;color:var(--tb-blue)}.tb-calc-body{padding:24px 20px}.tb-calc-form{display:flex;flex-direction:column;gap:20px}.tb-calc-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}@media (max-width:480px){.tb-calc-fields{grid-template-columns:1fr}}.tb-calc-field label{display:block;font-size:.85rem;color:var(--tb-text-light);margin-bottom:6px;font-weight:500}.tb-calc-field input{width:100%;padding:10px 12px;min-height:44px;border:1px solid var(--tb-gray-border);background:#fff;font-size:16px;font-family:inherit;box-sizing:border-box}.tb-calc-field input:focus{outline:2px solid var(--tb-blue);outline-offset:2px;border-color:var(--tb-blue)}.tb-calc-field input::placeholder{color:#999}.tb-calc-result{padding:16px;background:var(--tb-gray-light);border:1px solid var(--tb-gray-border)}.tb-calc-result-label{margin:0 0 4px 0;font-size:.85rem;color:var(--tb-text-light)}.tb-calc-result-value{margin:0;font-size:1.5rem;font-weight:700;color:var(--tb-blue)}.tb-calc-footer{padding:16px 20px;background:var(--tb-gray-light);border-top:1px solid var(--tb-gray-border)}.tb-calc-btn-devis{display:inline-block;text-decoration:none}.tb-calc-tooltip-wrapper{display:inline;margin-left:.35em;vertical-align:middle}.tb-calc-tooltip-icon{display:inline-flex;align-items:center;justify-content:center;width:1.25em;height:1.25em;font-size:1em;cursor:pointer}.tb-calc-tooltip-icon .fa-calculator{font-size:inherit}