/* ============================================================
   css/visores.css  —  Prefijo .vf-  (visores-flujo.html)
   ============================================================ */

/* ── Variables de sección ── */
:root {
    --vf-navy:   #02042B;
    --vf-blue:   #1B6CA8;
    --vf-lblue:  #D5EBF8;
    --vf-gray:   #F4F6F8;
    --vf-lgray:  #F7F9FC;
    --vf-white:  #FFFFFF;
    --vf-txt:    #2d2d2d;
    --vf-muted:  #5a6372;
    --vf-ease:   cubic-bezier(.4, 0, .2, 1);
}

/* ── Scroll animations ── */
.vf-reveal,
.vf-reveal--left,
.vf-reveal--right {
    opacity: 0;
    transition: opacity .55s var(--vf-ease), transform .55s var(--vf-ease);
}
.vf-reveal        { transform: translateY(28px); }
.vf-reveal--left  { transform: translateX(-36px); }
.vf-reveal--right { transform: translateX(36px); }
.vf-reveal.vf-visible,
.vf-reveal--left.vf-visible,
.vf-reveal--right.vf-visible { opacity: 1; transform: none; }

/* ── Contenedor base ── */
.vf-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Encabezado de sección ── */
.vf-section-header {
    text-align: center;
    margin-bottom: 56px;
}
.vf-section-header h2 { color: var(--vf-navy); margin: 12px 0 16px; font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 700; }
.vf-section-header p  { color: var(--vf-muted); max-width: 680px; margin: 0 auto; font-size: 1rem; line-height: 1.65; }
.vf-section-header--inv h2 { color: var(--vf-white); }
.vf-section-header--inv p  { color: rgba(255,255,255,.78); }

.vf-section-line {
    width: 54px; height: 3px;
    background: var(--vf-blue);
    margin: 0 auto 16px;
    border-radius: 2px;
}
.vf-section-line--inv { background: rgba(255,255,255,.55); }

/* ── Badge ── */
.vf-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--vf-lblue);
    color: var(--vf-blue);
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    padding: 5px 13px;
    border-radius: 50px;
    margin-bottom: 12px;
}
.vf-badge--inv  { background: rgba(255,255,255,.14); color: var(--vf-white); }
.vf-badge--mfr  { background: #e8f4ec; color: #1a7a34; }

/* ── Botones ── */
.vf-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: 6px;
    font-weight: 600;
    font-size: .93rem;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: background .22s, color .22s, border-color .22s, transform .15s;
    font-family: 'Poppins', sans-serif;
}
.vf-btn:hover { transform: translateY(-2px); }

.vf-btn--primary  { background: var(--vf-blue); color: var(--vf-white); }
.vf-btn--primary:hover { background: #154f7a; }

.vf-btn--wa       { background: #25D366; color: var(--vf-white); border-color: #25D366; }
.vf-btn--wa:hover { background: #1da851; border-color: #1da851; }

.vf-btn--light    { background: var(--vf-white); color: var(--vf-navy); }
.vf-btn--light:hover { background: var(--vf-lblue); }

.vf-btn--outline-dark { background: transparent; border-color: var(--vf-navy); color: var(--vf-navy); }
.vf-btn--outline-dark:hover { background: var(--vf-navy); color: var(--vf-white); }

.vf-btn--sm { padding: 9px 18px; font-size: .86rem; }


/* ============================================================
   S1 — FABRICACIÓN DEFANY
   ============================================================ */
.vf-fab {
    padding: 96px 0;
    background: var(--vf-white);
}
.vf-fab__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
}
.vf-fab__text h2 {
    font-size: clamp(1.45rem, 2.8vw, 2rem);
    color: var(--vf-navy);
    font-weight: 700;
    margin: 12px 0 18px;
    line-height: 1.25;
}
.vf-fab__lead {
    font-size: 1.05rem;
    color: var(--vf-muted);
    line-height: 1.65;
    margin-bottom: 16px;
}
.vf-fab__text p { color: var(--vf-muted); line-height: 1.65; margin-bottom: 20px; }
.vf-fab__list {
    list-style: none;
    padding: 0; margin: 0 0 28px;
    display: flex;
    flex-direction: column;
    gap: 9px;
}
.vf-fab__list li {
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--vf-txt);
    font-size: .95rem;
}
.vf-fab__list li i { color: var(--vf-blue); font-size: .88rem; flex-shrink: 0; }
.vf-fab__btns { display: flex; gap: 14px; flex-wrap: wrap; }

.vf-fab__img-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}
.vf-fab__img-wrap {
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 16px 48px rgba(2,4,43,.14);
    border: 2px solid var(--vf-lblue);
    background: var(--vf-gray);
}
.vf-fab__img-wrap img {
    width: 100%;
    display: block;
    transition: transform .45s var(--vf-ease);
}
.vf-fab__img-wrap img:hover { transform: scale(1.04); }
.vf-fab__img-tag {
    font-size: .82rem;
    color: var(--vf-muted);
    background: var(--vf-gray);
    padding: 7px 16px;
    border-radius: 50px;
    font-weight: 500;
}
.vf-fab__img-tag i { color: var(--vf-blue); margin-right: 5px; }


/* ============================================================
   S2 — ¿QUÉ HACE UN VISOR?
   ============================================================ */
.vf-que-hace {
    padding: 96px 0;
    background: var(--vf-lgray);
}
.vf-que-hace__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
}
.vf-que-hace__img-col img {
    width: 100%;
    max-width: 420px;
    border-radius: 14px;
    box-shadow: 0 16px 40px rgba(2,4,43,.12);
    display: block;
    transition: transform .4s;
    cursor: zoom-in;
}
.vf-que-hace__img-col img:hover { transform: scale(1.03); }

.vf-que-hace__text h2 {
    font-size: clamp(1.4rem, 2.6vw, 1.9rem);
    color: var(--vf-navy);
    font-weight: 700;
    margin: 12px 0 14px;
}
.vf-que-hace__text p { color: var(--vf-muted); line-height: 1.65; margin-bottom: 24px; }

.vf-checks { display: flex; flex-direction: column; gap: 14px; }
.vf-check {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: var(--vf-white);
    border-radius: 10px;
    padding: 14px 18px;
    border: 1px solid #e3ebf5;
    transition: box-shadow .22s;
}
.vf-check:hover { box-shadow: 0 4px 18px rgba(27,108,168,.1); }
.vf-check__icon { color: var(--vf-blue); font-size: 1.1rem; margin-top: 2px; flex-shrink: 0; }
.vf-check__body { display: flex; flex-direction: column; gap: 2px; }
.vf-check__body strong { color: var(--vf-navy); font-size: .92rem; }
.vf-check__body span  { color: var(--vf-muted); font-size: .83rem; line-height: 1.45; }


/* ============================================================
   S3 — ESPECIFICACIONES GP
   ============================================================ */
.vf-specs {
    padding: 96px 0;
    background: var(--vf-white);
}
.vf-specs__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}
.vf-spec__card {
    background: var(--vf-gray);
    border-radius: 14px;
    padding: 32px 24px;
    text-align: center;
    border: 2px solid #e8eef5;
    transition: border-color .22s, box-shadow .22s;
}
.vf-spec__card:hover { border-color: var(--vf-blue); box-shadow: 0 8px 28px rgba(27,108,168,.12); }
.vf-spec__icon {
    font-size: 2rem;
    color: var(--vf-blue);
    margin-bottom: 12px;
}
.vf-spec__label {
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--vf-muted);
    font-weight: 600;
    margin-bottom: 6px;
}
.vf-spec__value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--vf-navy);
    margin-bottom: 4px;
}
.vf-spec__note {
    font-size: .78rem;
    color: var(--vf-muted);
}

.vf-specs__note {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: #fff8e8;
    border: 1px solid #f5c842;
    border-radius: 10px;
    padding: 18px 22px;
    color: #5a4a00;
    font-size: .9rem;
    line-height: 1.6;
}
.vf-specs__note-icon {
    font-size: 1.2rem;
    color: #e5a800;
    flex-shrink: 0;
    margin-top: 2px;
}


/* ============================================================
   S4 — CRISTALES
   ============================================================ */
.vf-cristales {
    padding: 96px 0;
    background: var(--vf-navy);
}
.vf-cristales__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-bottom: 32px;
}
.vf-cristal__card {
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 16px;
    overflow: hidden;
    transition: border-color .25s, transform .25s;
}
.vf-cristal__card:hover { border-color: rgba(255,255,255,.4); transform: translateY(-4px); }
.vf-cristal__card--prem {
    border-color: rgba(213,235,248,.35);
    background: rgba(27,108,168,.2);
}
.vf-cristal__label {
    text-align: center;
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    padding: 10px 16px;
}
.vf-cristal__label--eco  { background: rgba(255,255,255,.08); color: rgba(255,255,255,.7); }
.vf-cristal__label--prem { background: var(--vf-blue); color: var(--vf-white); }

.vf-cristal__img-wrap {
    background: rgba(255,255,255,.04);
    padding: 24px;
    display: flex;
    justify-content: center;
    border-bottom: 1px solid rgba(255,255,255,.1);
}
.vf-cristal__img-wrap img {
    width: 100%;
    max-height: 220px;
    object-fit: contain;
    cursor: zoom-in;
    transition: transform .3s;
}
.vf-cristal__img-wrap img:hover { transform: scale(1.05); }

.vf-cristal__body { padding: 28px; }
.vf-cristal__body h3 { color: var(--vf-white); font-size: 1.2rem; font-weight: 700; margin: 0 0 10px; }
.vf-cristal__body p  { color: rgba(255,255,255,.72); font-size: .9rem; line-height: 1.6; margin-bottom: 16px; }
.vf-cristal__feats {
    list-style: none;
    padding: 0; margin: 0;
    display: flex;
    flex-direction: column;
    gap: 7px;
}
.vf-cristal__feats li { color: rgba(255,255,255,.8); font-size: .86rem; display: flex; align-items: center; gap: 8px; }
.vf-cristal__feats li i { color: #4ade80; font-size: .78rem; }

.vf-cristales__warning {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.18);
    border-radius: 10px;
    padding: 18px 22px;
    color: rgba(255,255,255,.85);
    font-size: .9rem;
    line-height: 1.65;
}
.vf-warning__icon { font-size: 1.3rem; color: #93c5fd; flex-shrink: 0; margin-top: 2px; }
.vf-warning__text strong { color: var(--vf-white); }


/* ============================================================
   S5 — COMPARATIVA
   ============================================================ */
.vf-comp {
    padding: 96px 0;
    background: var(--vf-lgray);
}
.vf-comp__wrap { overflow-x: auto; }
.vf-comp__table {
    width: 100%;
    border-collapse: collapse;
    font-size: .92rem;
    min-width: 580px;
}
.vf-comp__table thead tr {
    background: var(--vf-navy);
    color: var(--vf-white);
}
.vf-comp__table th { padding: 14px 20px; text-align: left; font-weight: 600; }
.vf-comp__table td { padding: 13px 20px; border-bottom: 1px solid #dce6f0; color: var(--vf-txt); }
.vf-comp__table tbody tr:nth-child(even) { background: var(--vf-white); }
.vf-comp__table tbody tr:nth-child(odd)  { background: var(--vf-gray); }
.vf-comp__table tbody tr:hover           { background: var(--vf-lblue); }

.vf-comp__attr { color: rgba(255,255,255,.9); font-weight: 600; }
.vf-comp__eco  { color: #d5ebf8; }
.vf-comp__prem { color: #a8cfee; }
.vf-comp__val--good { color: var(--vf-blue); font-weight: 600; }
.vf-comp__val--prem { color: var(--vf-muted); }


/* ============================================================
   S6 — APLICACIONES
   ============================================================ */
.vf-apps {
    padding: 96px 0;
    background: var(--vf-navy);
}
.vf-apps__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}
.vf-app__card {
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 12px;
    padding: 28px 22px;
    text-align: center;
    transition: background .22s, border-color .22s, transform .22s;
}
.vf-app__card:hover {
    background: rgba(27,108,168,.28);
    border-color: rgba(213,235,248,.35);
    transform: translateY(-4px);
}
.vf-app__icon {
    font-size: 1.9rem;
    color: var(--vf-lblue);
    margin-bottom: 10px;
}
.vf-app__name { font-size: 1rem; font-weight: 700; color: var(--vf-white); margin-bottom: 8px; }
.vf-app__card p { font-size: .82rem; color: rgba(255,255,255,.68); line-height: 1.55; margin: 0; }


/* ============================================================
   S7 — REFACCIONES
   ============================================================ */
.vf-refac {
    padding: 96px 0;
    background: var(--vf-white);
}
.vf-refac__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
}
.vf-refac__text h2 {
    font-size: clamp(1.4rem, 2.6vw, 1.9rem);
    color: var(--vf-navy);
    font-weight: 700;
    margin: 12px 0 14px;
}
.vf-refac__lead {
    font-size: 1.05rem;
    color: var(--vf-muted);
    line-height: 1.65;
    margin-bottom: 14px;
}
.vf-refac__text p { color: var(--vf-muted); line-height: 1.65; margin-bottom: 22px; }
.vf-refac__items { display: flex; flex-direction: column; gap: 14px; margin-bottom: 28px; }
.vf-refac__item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 18px;
    background: var(--vf-gray);
    border-radius: 10px;
    border-left: 3px solid var(--vf-blue);
}
.vf-refac__item-icon {
    font-size: 1.1rem;
    color: var(--vf-blue);
    margin-top: 2px;
    flex-shrink: 0;
}
.vf-refac__item strong { display: block; color: var(--vf-navy); font-size: .9rem; margin-bottom: 2px; }
.vf-refac__item span  { color: var(--vf-muted); font-size: .83rem; line-height: 1.45; }

.vf-refac__img-col img {
    width: 100%;
    border-radius: 14px;
    box-shadow: 0 14px 40px rgba(2,4,43,.12);
    display: block;
    transition: transform .4s;
    cursor: zoom-in;
}
.vf-refac__img-col img:hover { transform: scale(1.03); }


/* ============================================================
   S8 — CONFIGURADOR
   ============================================================ */
.vf-cfg {
    padding: 96px 0;
    background: linear-gradient(135deg, #0d1a4a 0%, #02042B 60%, #0a2050 100%);
}
.vf-cfg__card {
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 18px;
    padding: 48px;
    max-width: 820px;
    margin: 0 auto;
}
.vf-cfg__fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-bottom: 24px;
}
.vf-cfg__group { display: flex; flex-direction: column; gap: 6px; }
.vf-cfg__group label {
    color: rgba(255,255,255,.8);
    font-size: .82rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.vf-cfg__group select,
.vf-cfg__group input {
    padding: 11px 14px;
    border-radius: 7px;
    border: 1px solid rgba(255,255,255,.2);
    background: rgba(255,255,255,.1);
    color: var(--vf-white);
    font-size: .92rem;
    font-family: 'Poppins', sans-serif;
    outline: none;
    transition: border-color .2s;
    appearance: auto;
}
.vf-cfg__group select option { background: var(--vf-navy); color: var(--vf-white); }
.vf-cfg__group select:focus,
.vf-cfg__group input:focus  { border-color: var(--vf-lblue); }
.vf-cfg__group input::placeholder { color: rgba(255,255,255,.4); }

.vf-cfg__actions { margin-bottom: 24px; }

.vf-cfg__result {
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 10px;
    padding: 24px;
    margin-bottom: 0;
}
.vf-cfg__result-label {
    color: rgba(255,255,255,.7);
    font-size: .8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.vf-cfg__result-text {
    color: var(--vf-white);
    font-family: 'Poppins', sans-serif;
    font-size: .9rem;
    line-height: 1.7;
    white-space: pre-wrap;
    margin: 0 0 16px;
}

.vf-cfg__confirm {
    text-align: center;
    padding: 24px;
    background: rgba(74,222,128,.1);
    border: 1px solid rgba(74,222,128,.3);
    border-radius: 10px;
}
.vf-cfg__confirm-icon { font-size: 2.4rem; color: #4ade80; margin-bottom: 12px; }
.vf-cfg__confirm p    { color: rgba(255,255,255,.88); margin: 0 0 18px; font-size: .92rem; }
.vf-cfg__confirm-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }


/* ============================================================
   S9 — FAQ
   ============================================================ */
.vf-faq {
    padding: 96px 0;
    background: var(--vf-white);
}
.vf-faq .vf-section-header h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
.vf-faq__list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 8px; }
.vf-faq__item {
    border: 1px solid #dce6f0;
    border-radius: 10px;
    overflow: hidden;
    transition: box-shadow .22s;
}
.vf-faq__item.is-open { box-shadow: 0 4px 20px rgba(27,108,168,.1); }

.vf-faq__q {
    width: 100%;
    text-align: left;
    background: var(--vf-gray);
    border: none;
    padding: 16px 20px;
    font-family: 'Poppins', sans-serif;
    font-size: .93rem;
    font-weight: 600;
    color: var(--vf-navy);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    transition: background .2s;
}
.vf-faq__item.is-open .vf-faq__q { background: var(--vf-lblue); color: var(--vf-blue); }
.vf-faq__q i { font-size: .78rem; transition: transform .3s; flex-shrink: 0; }
.vf-faq__item.is-open .vf-faq__q i { transform: rotate(180deg); }

.vf-faq__a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s var(--vf-ease);
}
.vf-faq__item.is-open .vf-faq__a { max-height: 350px; }
.vf-faq__a p {
    padding: 18px 22px;
    color: var(--vf-muted);
    font-size: .9rem;
    line-height: 1.65;
    margin: 0;
}
.vf-faq__a p strong { color: var(--vf-navy); }


/* ============================================================
   CTA FINAL
   ============================================================ */
.vf-cta-final {
    padding: 96px 0;
    background: linear-gradient(135deg, #1B6CA8 0%, #02042B 100%);
}
.vf-cta-final__inner {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 60px;
    align-items: center;
}
.vf-cta-final__text h2 {
    font-size: clamp(1.5rem, 2.8vw, 2.1rem);
    color: var(--vf-white);
    font-weight: 700;
    margin: 0 0 14px;
}
.vf-cta-final__text p {
    color: rgba(255,255,255,.8);
    font-size: 1rem;
    line-height: 1.65;
    margin-bottom: 28px;
}
.vf-cta-final__btns { display: flex; gap: 14px; flex-wrap: wrap; }
.vf-cta-final__img-wrap img {
    width: 280px;
    max-width: 100%;
    border-radius: 14px;
    box-shadow: 0 16px 48px rgba(0,0,0,.3);
    display: block;
    cursor: zoom-in;
    transition: transform .4s;
}
.vf-cta-final__img-wrap img:hover { transform: scale(1.04); }


/* ============================================================
   LIGHTBOX
   ============================================================ */
.vf-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s;
}
.vf-lightbox.is-open { opacity: 1; pointer-events: auto; }
.vf-lightbox__overlay {
    position: absolute;
    inset: 0;
    background: rgba(2,4,43,.88);
}
.vf-lightbox__box {
    position: relative;
    z-index: 1;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.vf-lightbox__close {
    position: absolute;
    top: -44px;
    right: 0;
    width: 38px; height: 38px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,.18);
    color: var(--vf-white);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s;
}
.vf-lightbox__close:hover { background: rgba(255,255,255,.32); }
.vf-lightbox__img {
    max-width: 90vw;
    max-height: 78vh;
    border-radius: 10px;
    object-fit: contain;
    box-shadow: 0 24px 72px rgba(0,0,0,.5);
}
.vf-lightbox__caption {
    color: rgba(255,255,255,.75);
    font-size: .85rem;
    text-align: center;
}


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .vf-fab__grid,
    .vf-que-hace__grid,
    .vf-refac__grid,
    .vf-cta-final__inner { grid-template-columns: 1fr; gap: 48px; }
    .vf-que-hace__img-col { order: -1; }
    .vf-refac__img-col { order: -1; }
    .vf-cta-final__img-wrap { display: none; }
    .vf-specs__grid { grid-template-columns: repeat(2, 1fr); }
    .vf-cristales__grid { grid-template-columns: 1fr; gap: 20px; }
    .vf-cfg__card { padding: 32px 24px; }
}

@media (max-width: 768px) {
    .vf-fab,
    .vf-que-hace,
    .vf-specs,
    .vf-cristales,
    .vf-comp,
    .vf-apps,
    .vf-refac,
    .vf-cfg,
    .vf-faq,
    .vf-cta-final { padding: 64px 0; }

    .vf-specs__grid { grid-template-columns: 1fr; }
    .vf-cfg__fields { grid-template-columns: 1fr; }
    .vf-apps__grid  { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
    .vf-fab__btns   { flex-direction: column; gap: 10px; }
    .vf-fab__btns .vf-btn { text-align: center; justify-content: center; }
    .vf-cta-final__btns { flex-direction: column; gap: 10px; }
    .vf-cta-final__btns .vf-btn { justify-content: center; }
}

@media (max-width: 480px) {
    .vf-cristales__grid { grid-template-columns: 1fr; }
    .vf-cfg__confirm-btns { flex-direction: column; align-items: center; }
}