.bf-b2b{--bf-b2b-red:#c61b23;max-width:960px;margin:20px auto 45px;color:#222;font-family:inherit}
.bf-b2b *, .bf-b2b *:before, .bf-b2b *:after{box-sizing:border-box}
.bf-b2b-heading{margin-bottom:28px}
.bf-b2b-heading h2{font-size:clamp(27px,3vw,38px);line-height:1.18;letter-spacing:-.02em;margin:0 0 10px;font-weight:750}
.bf-b2b-heading p{color:#626973;font-size:16px;line-height:1.6;max-width:720px;margin:0}
.bf-b2b-form{border:1px solid #e6e6e6;border-radius:14px;padding:clamp(20px,4vw,40px);background:white;box-shadow:0 4px 22px rgba(0,0,0,.03)}
.bf-b2b-form h3{font-size:19px;font-weight:750;margin:25px 0 17px;line-height:1.35}
.bf-b2b-form h3:first-of-type{margin-top:0}
.bf-b2b-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px 20px}
.bf-b2b-full{grid-column:1 / -1}
.bf-b2b-field{display:flex;flex-direction:column;gap:7px;min-width:0;font-size:14px;color:#303030;font-weight:600}
.bf-b2b-field b{color:var(--bf-b2b-red)}
.bf-b2b-field input,.bf-b2b-field select{width:100%;height:44px!important;min-height:44px!important;padding:9px 12px!important;font:inherit!important;font-weight:400!important;color:#252525!important;border:1px solid #d9dce0!important;border-radius:8px!important;background:#fff!important;box-shadow:none!important}
.bf-b2b-field input:focus,.bf-b2b-field select:focus{outline:2px solid #e89ea2!important;outline-offset:1px;border-color:var(--bf-b2b-red)!important}
.bf-b2b-shipping{margin-top:24px;border-top:1px solid #ededed;padding-top:22px}
.bf-b2b-toggle,.bf-b2b-consent{display:flex;align-items:flex-start;gap:11px;line-height:1.55;font-size:14px;cursor:pointer}
.bf-b2b-toggle input,.bf-b2b-consent input{width:17px;height:17px;min-width:17px;margin:3px 0 0;accent-color:var(--bf-b2b-red)}
.bf-b2b-shipping-fields{margin-top:12px}
.bf-b2b-shipping-fields[hidden]{display:none!important}
.bf-b2b-consent{margin:28px 0 17px;cursor:default;color:#4a4f55}
.bf-b2b-consent a{color:var(--bf-b2b-red);text-decoration:underline}
.bf-b2b-submit{display:inline-flex;justify-content:center;align-items:center;background:var(--bf-b2b-red)!important;color:white!important;border:0!important;border-radius:8px!important;padding:14px 23px!important;min-height:46px!important;font-size:15px!important;font-weight:750!important;cursor:pointer;line-height:1.25!important}
.bf-b2b-submit:hover{filter:brightness(.9)}
.bf-b2b-note{font-size:12px;color:#707783;margin:15px 0 0;line-height:1.65}
.bf-b2b-alert{border:1px solid #ead7a8;background:#fffaf0;border-radius:10px;padding:20px;line-height:1.6;color:#55491c}
.bf-b2b-success{border-color:#c3e1c4;background:#f4fbf4;color:#295d2c}
.bf-b2b-trap{position:absolute!important;left:-10000px!important;height:1px!important;width:1px!important;overflow:hidden!important}
@media(max-width:650px){.bf-b2b-grid{grid-template-columns:1fr}.bf-b2b-full{grid-column:auto}.bf-b2b-heading p{font-size:15px}.bf-b2b-submit{width:100%}}
/* v1.4 - fotografías, preferencias y explicación de proceso */
.bf-b2b-intro{font-size:14px;color:#5d6369;line-height:1.55;margin:-3px 0 18px}
.bf-b2b-field input[type="file"].bf-b2b-file{height:auto!important;min-height:56px!important;padding:12px!important;line-height:1.4!important;white-space:normal}
.bf-b2b-field input[type="file"]::file-selector-button{border:1px solid #c6c8cb;border-radius:6px;background:#f9fafb;color:#282828;padding:8px 12px;cursor:pointer;margin-right:10px;font-weight:600}
.bf-b2b-process{margin-top:32px;border:1px solid #e7e7e7;border-radius:12px;background:#fafafa;padding:22px 23px}
.bf-b2b-process h3{margin:0 0 15px!important;font-size:18px}
.bf-b2b-process ol{padding-left:24px;margin:0;display:grid;gap:14px}
.bf-b2b-process li{font-size:14px;line-height:1.55;padding-left:4px;color:#51565e}
.bf-b2b-process li::marker{color:#c61b23;font-weight:700}
.bf-b2b-process strong{color:#222}
/* v1.4.1: progreso real de carga, prevención de doble envío y RUT accesible */
.bf-b2b-field-help {font-size:12px;line-height:1.45;font-weight:400;color:#69727d}
.bf-b2b-rut-invalid {color:#bf171e!important}
.bf-b2b-submit:disabled{opacity:.55;cursor:wait!important;filter:none!important}
.bf-b2b-upload-status[hidden],.bf-b2b-feedback[hidden],.bf-b2b-form[hidden]{display:none!important}
.bf-b2b-upload-status{position:fixed;inset:0;z-index:100000;display:flex;align-items:center;justify-content:center;gap:15px;flex-direction:column;background:rgba(255,255,255,.91);color:#262626;font-size:19px;font-weight:650;text-align:center;padding:30px}
.bf-b2b-spinner{width:44px;height:44px;display:inline-block;border:4px solid #e4e4e4;border-top-color:#c61b23;border-radius:50%;animation:bf-b2b-spin .8s linear infinite}
@keyframes bf-b2b-spin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.bf-b2b-spinner{animation-duration:2s}}
.bf-b2b-feedback{border:1px solid #df9b9d;background:#fff5f5;color:#7b1721;border-radius:8px;padding:15px 17px;margin:12px 0 20px;font-size:14px;line-height:1.5}