:root{--ibwc-primary:#0072ce;--ibwc-primary-deep:#005fa3;--ibwc-secondary:#00a86b;--ibwc-secondary-light:#e6f0ff;--ibwc-danger:#e74c3c;--ibwc-bg:#f7f9fb;--ibwc-white:#ffffff;--ibwc-text:#26282c;--ibwc-border:#d8dce2;--ibwc-radius:8px;--ibwc-spacing:1.5rem;--ibwc-gap:0.6rem;--ibwc-shadow-sm:0 1px 3px rgba(0, 0, 0, 0.08);--ibwc-shadow-md:0 4px 16px rgba(0, 114, 206, 0.1);--ibwc-shadow-lg:0 8px 32px rgba(0, 114, 206, 0.14);--ibwc-text-muted:#6b7280;--ibwc-transition:0.2s ease}.ibwc-app{display:flex;flex-direction:column;gap:1.25rem}.ibwc-hidden{display:none!important}.ibwc-header{display:flex;align-items:center;gap:.85rem;border:1px solid var(--ibwc-border);border-radius:var(--ibwc-radius);padding:2.5rem 1rem;box-shadow:var(--ibwc-shadow-sm)}.ibwc-header-icon{width:52px;height:52px;background:var(--ibwc-secondary-light);border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0;border:1px solid var(--ibwc-border)!important}.ibwc-title{font-size:1.5rem!important;font-weight:700;color:var(--ibwc-text)!important;line-height:1.25;letter-spacing:-.02em}.ibwc-subtitle{font-size:0.82rem!important;color:var(--ibwc-text-muted)!important;font-weight:400;margin-top:.15rem}.ibwc-card{background:var(--ibwc-white);border-radius:12px;border:1px solid var(--ibwc-border)!important;box-shadow:var(--ibwc-shadow-sm);padding:var(--ibwc-spacing);display:flex;flex-direction:column;gap:1.35rem}.ibwc-field-group{display:flex;flex-direction:column;gap:var(--ibwc-gap)}.ibwc-label{font-size:0.88rem!important;font-weight:600;color:var(--ibwc-text)!important;letter-spacing:.01em}.ibwc-label-row{display:flex;align-items:center;justify-content:space-between}.ibwc-field-hint{font-size:0.78rem!important;color:var(--ibwc-danger)!important;min-height:1.1em;transition:opacity var(--ibwc-transition)}.ibwc-gender-toggle{display:flex;gap:.5rem}.ibwc-gender-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:.45rem;padding:.6rem 1rem;border-radius:var(--ibwc-radius);border:1.5px solid var(--ibwc-border)!important;background:var(--ibwc-white);color:var(--ibwc-text-muted)!important;font-family:"Rubik",sans-serif;font-size:0.9rem!important;font-weight:500;cursor:pointer;transition:all var(--ibwc-transition)}.ibwc-gender-btn:hover{border:1.5px solid var(--ibwc-primary)!important;color:var(--ibwc-primary)!important}.ibwc-gender-btn--active{background:var(--ibwc-secondary-light)!important;border:1.5px solid var(--ibwc-primary)!important;color:var(--ibwc-primary)!important;font-weight:600}.ibwc-unit-toggle{display:flex;border-radius:var(--ibwc-radius);border:1px solid var(--ibwc-border)!important;overflow:hidden}.ibwc-unit-btn{padding:.28rem .75rem;border:none;background:#fff0;color:var(--ibwc-text-muted)!important;font-family:"Rubik",sans-serif;font-size:0.8rem!important;font-weight:500;cursor:pointer;transition:all var(--ibwc-transition)}.ibwc-unit-btn--active{background:var(--ibwc-primary)!important;color:var(--ibwc-white)!important;font-weight:600}.ibwc-unit-btn:not(.ibwc-unit-btn--active):hover{background:var(--ibwc-secondary-light)!important;color:var(--ibwc-primary)!important}.ibwc-input-wrapper{position:relative;display:flex;align-items:center}.ibwc-input{width:100%;padding:.65rem 2.8rem .65rem .9rem;border-radius:var(--ibwc-radius);border:1.5px solid var(--ibwc-border)!important;background:var(--ibwc-bg)!important;color:var(--ibwc-text)!important;font-family:"Rubik",sans-serif;font-size:1rem!important;font-weight:500;outline:none;transition:border var(--ibwc-transition);-moz-appearance:textfield}.ibwc-input::-webkit-outer-spin-button,.ibwc-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.ibwc-input:focus{border:1.5px solid var(--ibwc-primary)!important;background:var(--ibwc-white)!important}.ibwc-input.ibwc-input--error{border:1.5px solid var(--ibwc-danger)!important}.ibwc-input-unit{position:absolute;right:.75rem;font-size:0.8rem!important;font-weight:600;color:var(--ibwc-text-muted)!important;pointer-events:none;user-select:none}.ibwc-ftin-wrapper{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}.ibwc-formula-grid{display:flex;flex-wrap:wrap;gap:.5rem}.ibwc-formula-chip{padding:.38rem .9rem;border-radius:100px;border:1.5px solid var(--ibwc-border)!important;background:var(--ibwc-white);color:var(--ibwc-text-muted)!important;font-family:"Rubik",sans-serif;font-size:0.82rem!important;font-weight:500;cursor:pointer;transition:all var(--ibwc-transition)}.ibwc-formula-chip:hover{border:1.5px solid var(--ibwc-primary)!important;color:var(--ibwc-primary)!important}.ibwc-formula-chip--active{background:var(--ibwc-primary)!important;border:1.5px solid var(--ibwc-primary)!important;color:var(--ibwc-white)!important;font-weight:600}.ibwc-btn-calculate{display:flex;align-items:center;justify-content:center;gap:.5rem;width:100%;padding:.8rem 1.5rem;border-radius:var(--ibwc-radius);border:none;background:var(--ibwc-primary)!important;color:var(--ibwc-white)!important;font-family:"Rubik",sans-serif;font-size:1rem!important;font-weight:600;cursor:pointer;transition:background var(--ibwc-transition),box-shadow var(--ibwc-transition),transform 0.1s ease;box-shadow:0 2px 8px rgb(0 114 206 / .22);letter-spacing:.01em}.ibwc-btn-calculate:hover{background:var(--ibwc-primary-deep)!important;box-shadow:0 4px 16px rgb(0 114 206 / .3)}.ibwc-btn-calculate:active{transform:scale(.985)}.ibwc-error{display:flex;align-items:center;gap:.5rem;padding:.6rem .9rem;border-radius:var(--ibwc-radius);background:#fdf2f2!important;border:1px solid #f5c6c6!important;color:var(--ibwc-danger)!important;font-size:0.85rem!important;font-weight:500}.ibwc-results{background:var(--ibwc-white);border-radius:12px;border:1px solid var(--ibwc-border)!important;box-shadow:var(--ibwc-shadow-md);overflow:hidden;animation:ibwc-fadeUp 0.35s ease}@keyframes ibwc-fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}.ibwc-results-header{padding:var(--ibwc-spacing) var(--ibwc-spacing) .75rem;border-bottom:1px solid var(--ibwc-border)}.ibwc-results-title{font-size:1.05rem!important;font-weight:700;color:var(--ibwc-text)!important;letter-spacing:-.01em}.ibwc-results-meta{font-size:0.8rem!important;color:var(--ibwc-text-muted)!important;margin-top:.2rem}.ibwc-result-primary{text-align:center;padding:1.75rem var(--ibwc-spacing) 1.5rem;background:linear-gradient(135deg,#eaf3ff 0%,#e6f0ff 100%)!important;border-bottom:1px solid var(--ibwc-border)}.ibwc-result-primary-label{font-size:0.82rem!important;font-weight:600;color:var(--ibwc-primary)!important;text-transform:uppercase;letter-spacing:.06em;margin-bottom:.4rem}.ibwc-result-primary-value{font-size:2.75rem!important;font-weight:800;color:var(--ibwc-primary)!important;line-height:1.1;letter-spacing:-.03em}.ibwc-result-primary-sub{font-size:0.88rem!important;color:var(--ibwc-text-muted)!important;margin-top:.4rem}.ibwc-formula-breakdown{padding:1rem var(--ibwc-spacing);display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.75rem}.ibwc-formula-row{display:flex;flex-direction:column;gap:.25rem;padding:.75rem .9rem;border-radius:var(--ibwc-radius);background:var(--ibwc-bg)!important;border:1px solid var(--ibwc-border)!important}.ibwc-formula-row-name{font-size:0.78rem!important;font-weight:600;color:var(--ibwc-text-muted)!important;text-transform:uppercase;letter-spacing:.04em}.ibwc-formula-row-value{font-size:1.2rem!important;font-weight:700;color:var(--ibwc-text)!important}.ibwc-formula-row-lbs{font-size:0.78rem!important;color:var(--ibwc-text-muted)!important}.ibwc-range-note{margin:0 var(--ibwc-spacing) 0;padding:.7rem .9rem;border-radius:var(--ibwc-radius);background:#f0faf5!important;border:1px solid #b2e5cd!important;font-size:0.83rem!important;color:#1a6b48!important;line-height:1.5}.ibwc-actions{display:flex;gap:.5rem;padding:1rem var(--ibwc-spacing) var(--ibwc-spacing);flex-wrap:wrap}.ibwc-action-btn{display:flex;align-items:center;gap:.4rem;padding:.55rem 1rem;border-radius:var(--ibwc-radius);font-family:"Rubik",sans-serif;font-size:0.85rem!important;font-weight:600;cursor:pointer;transition:all var(--ibwc-transition);border:1.5px solid transparent!important}.ibwc-action-btn--pdf{background:var(--ibwc-primary)!important;color:var(--ibwc-white)!important;border:1.5px solid var(--ibwc-primary)!important}.ibwc-action-btn--pdf:hover{background:var(--ibwc-primary-deep)!important;border:1.5px solid var(--ibwc-primary-deep)!important}.ibwc-action-btn--copy{background:var(--ibwc-white)!important;color:var(--ibwc-text)!important;border:1.5px solid var(--ibwc-border)!important}.ibwc-action-btn--copy:hover{border:1.5px solid var(--ibwc-primary)!important;color:var(--ibwc-primary)!important}.ibwc-action-btn--reset{background:var(--ibwc-white)!important;color:var(--ibwc-danger)!important;border:1.5px solid #f5c6c6!important}.ibwc-action-btn--reset:hover{background:#fdf2f2!important;border:1.5px solid var(--ibwc-danger)!important}.ibwc-disclaimer{margin-top:1rem;padding:.65rem .85rem;border-radius:var(--ibwc-radius);background:#fffbf0!important;border:1px solid #ffe4a0!important;font-size:0.8rem!important;color:#7a5700!important}.ibwc-modal-overlay{position:fixed;inset:0;background:rgb(38 40 44 / .45);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem;animation:ibwc-fadeIn 0.2s ease}@keyframes ibwc-fadeIn{from{opacity:0}to{opacity:1}}.ibwc-modal{background:var(--ibwc-white);border-radius:12px;box-shadow:var(--ibwc-shadow-lg);padding:2rem;max-width:360px;width:100%;text-align:center;animation:ibwc-scaleIn 0.2s ease}@keyframes ibwc-scaleIn{from{transform:scale(.92);opacity:0}to{transform:scale(1);opacity:1}}.ibwc-modal-icon{display:flex;justify-content:center;margin-bottom:.75rem}.ibwc-modal-title{font-size:1.15rem!important;font-weight:700;color:var(--ibwc-text)!important;margin-bottom:.5rem}.ibwc-modal-body{font-size:0.88rem!important;color:var(--ibwc-text-muted)!important;margin-bottom:1.5rem;line-height:1.5}.ibwc-modal-actions{display:flex;gap:.75rem;justify-content:center}.ibwc-modal-btn{flex:1;padding:.6rem 1.2rem;border-radius:var(--ibwc-radius);font-family:"Rubik",sans-serif;font-size:0.9rem!important;font-weight:600;cursor:pointer;transition:all var(--ibwc-transition)}.ibwc-modal-btn--cancel{background:var(--ibwc-white)!important;border:1.5px solid var(--ibwc-border)!important;color:var(--ibwc-text)!important}.ibwc-modal-btn--cancel:hover{border:1.5px solid var(--ibwc-primary)!important;color:var(--ibwc-primary)!important}.ibwc-modal-btn--confirm{background:var(--ibwc-danger)!important;border:1.5px solid var(--ibwc-danger)!important;color:var(--ibwc-white)!important}.ibwc-modal-btn--confirm:hover{opacity:.88}.ibwc-toast{position:fixed;bottom:1.5rem;left:50%;transform:translateX(-50%);background:var(--ibwc-text)!important;color:var(--ibwc-white)!important;font-size:0.88rem!important;font-weight:500;padding:.65rem 1.25rem;border-radius:100px;box-shadow:var(--ibwc-shadow-md);z-index:2000;white-space:nowrap;animation:ibwc-toastIn 0.25s ease;pointer-events:none}@keyframes ibwc-toastIn{from{opacity:0;transform:translateX(-50%) translateY(10px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}@media (max-width:500px){.ibwc-title{font-size:1.2rem!important}.ibwc-result-primary-value{font-size:2.2rem!important}.ibwc-formula-breakdown{grid-template-columns:1fr 1fr}.ibwc-actions{flex-direction:column}.ibwc-action-btn--reset{margin-left:0}.ibwc-formula-info-grid{grid-template-columns:1fr}.ibwc-formula-breakdown{grid-template-columns:1fr 1fr}.ibwc-header{padding-block:1.5rem}}@media (max-width:360px){.ibwc-formula-breakdown{grid-template-columns:1fr}.ibwc-gender-toggle{flex-direction:column}}