.calculator{padding:10px;}.calculator *{box-sizing:border-box;margin:0;padding:0;}.calculator-row{--bs-gutter-x:1.5rem;--bs-gutter-y:0;display:flex;flex-wrap:wrap;margin-top:calc(var(--bs-gutter-y) * -1);margin-right:calc(var(--bs-gutter-x) * -.5);margin-left:calc(var(--bs-gutter-x) * -.5);--bs-gutter-x:0.5rem;}.calculator-row>*{flex-shrink:0;width:100%;max-width:100%;padding-right:calc(var(--bs-gutter-x) * .5);padding-left:calc(var(--bs-gutter-x) * .5);margin-top:var(--bs-gutter-y);}.calculator-col-6{-ms-flex:0 0 50%;flex:0 0 50%;max-width:50%;}.calculator-form-group{margin-bottom:1rem;}.calculator-form-control{display:block;width:100%;height:calc(2.25rem + 2px);padding:0.375rem 0.75rem;font-size:1rem;line-height:1.5;color:#495057;background-color:#fff;background-clip:padding-box;border:1px solid #ced4da;border-radius:0.25rem;transition:border-color 0.15s ease-in-out,box-shadow 0.15s ease-in-out;}@media screen and (prefers-reduced-motion: reduce){.calculator-form-control{transition:none;}}select.calculator-form-control[size],select.calculator-form-control[multiple]{height:auto;}.calculator-form-control:focus{color:#212529;background-color:#fff;border-color:#86b7fe;outline:0;box-shadow:0 0 0 0.25rem rgba(13,110,253,0.25);}.calculator select,.calculator input,.calculator button,.calculator .result{height:60px !important;box-sizing:border-box;width:100%;font-size:1.4em;}.calculator .result{text-align:center;}.custom-dropdown{position:relative;width:100%;font-size:1rem;}.dropdown-display{display:flex;align-items:center;justify-content:space-between;gap:0.5rem;padding:0.5rem;border:1px solid #ccc;border-radius:10px;background:#fff;cursor:pointer;}.dropdown-display .flag img{width:48px;height:48px;}.dropdown-display .symbol{display:block;font-size:1.4rem;font-weight:900;margin-bottom:3px;}.dropdown-arrow{margin-inline-start:auto;width:1.5em;height:1.5em;background:url('data:image/svg+xml;utf8,<svg fill="black" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/></svg>') no-repeat center;background-size:contain;transition:transform 0.2s ease;}.custom-dropdown.open .dropdown-arrow{transform:rotate(180deg);}.dropdown-container{position:absolute;top:100%;left:0;width:100%;border:1px solid #ccc;border-radius:10px;background:#fff;box-shadow:0 4px 8px rgba(0,0,0,0.1);display:none;flex-direction:column;z-index:1000;}.dropdown-container.open{display:flex;}.dropdown-search{border:none;border-bottom:1px solid #ddd;padding:0.5rem;font-size:1rem;outline:none;width:100%;background:#fff;position:sticky;top:0;z-index:10;}.dropdown-list{max-height:300px;overflow-y:auto;}.dropdown-item{display:flex;align-items:center;gap:0.5rem;padding:0.5rem 1rem;cursor:pointer;}.dropdown-item:hover,.dropdown-item.focused{background:#f0f0f0;}.dropdown-item.selected{background:#e0e0e0;}.dropdown-item .flag img{width:24px;height:24px;}.dropdown-item .symbol{font-weight:700;}.dropdown-item .name{font-size:0.9rem;color:#666;}.dropdown-empty{padding:0.75rem 1rem;color:#777;font-size:0.95rem;}.dropdown-group{font-weight:bold;font-size:0.9rem;color:#444;padding:0.4rem 1rem;background:#fafafa;border-top:1px solid #eee;}