/* =========================================================
   SECCIÓN CORPORATIVA — carrusel de 5 ventanas
   Cada ventana ("slide") tiene su propio diseño interno.
   ========================================================= */

.corp-carrusel { position: relative; }

/* ---------- Pestañas superiores ---------- */
.corp-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 26px;
}
.corp-tabs button {
    font-family: var(--font-body);
    font-size: .84rem;
    font-weight: 600;
    color: var(--muted);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 9px 18px;
    cursor: pointer;
    transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.corp-tabs button:hover { color: var(--navy-900); border-color: var(--blue-500); }
.corp-tabs button.activo {
    background: var(--navy-900);
    border-color: var(--navy-900);
    color: #fff;
}

/* ---------- Escenario y slides ---------- */
.corp-escenario { position: relative; }

.corp-slide { display: none; }
.corp-slide.activa {
    display: block;
    animation: corp-aparecer .45s ease;
}
@keyframes corp-aparecer {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.corp-slide-intro {
    text-align: center;
    max-width: 60ch;
    margin: 0 auto 26px;
    color: var(--muted);
    font-size: .95rem;
}

/* ---------- 1) Política de calidad: video de fondo + texto ---------- */
.corp-politica {
    position: relative;
    min-height: 420px;
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    align-items: center;
    text-align: justify;
    /* degradado de respaldo, se ve si todavía no hay video */
    background: linear-gradient(135deg, #14395f, #0b2447 60%, #071a30);
}
.corp-politica-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}
/* velo oscuro para que el texto se lea sobre cualquier video */
.corp-politica::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(100deg, rgba(6, 16, 33, .92) 0%, rgba(6, 16, 33, .78) 45%, rgba(6, 16, 33, .45) 100%);
}
.corp-politica-texto {
    position: relative;
    z-index: 2;
    max-width: 620px;
    padding: 52px 46px;
    color: #fff;
}
.corp-politica-texto h3 {
    color: #fff;
    font-size: clamp(1.5rem, 2.6vw, 2.1rem);
    margin-bottom: 16px;
}
.corp-politica-texto h3::after {
    content: '';
    display: block;
    width: 54px; height: 3px;
    margin-top: 14px;
    background: linear-gradient(90deg, var(--gold-500), var(--sky-400));
}
.corp-politica-texto p {
    color: #d5e0f0;
    font-size: 1.02rem;
    line-height: 1.75;
    margin-bottom: 18px;
}
.corp-firma {
    font-size: .82rem;
    color: var(--gold-500);
    font-weight: 600;
    letter-spacing: .04em;
}
@media (max-width: 700px) {
    .corp-politica-texto { padding: 36px 26px; }
}

/* ---------- 2) Tres columnas: imagen + texto + botón ---------- */
.corp-tres {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
}
@media (max-width: 860px) { .corp-tres { grid-template-columns: minmax(0, 1fr); } }

/* variante de 4 columnas (la usa la ventana de certificaciones) */
.corp-cuatro { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1080px) { .corp-cuatro { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px)  { .corp-cuatro { grid-template-columns: minmax(0, 1fr); } }

.corp-col {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    transition: transform .22s ease, box-shadow .22s ease;
}
.corp-col:hover {
    transform: translateY(-5px);
    box-shadow: 0 18px 42px rgba(11, 36, 71, .14);
}
.corp-col-img {
    height: 250px;
    background: linear-gradient(135deg, #dbe6f4, #b9cde6);
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}
.corp-col-cuerpo {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.corp-col-cuerpo h3 { font-size: 1.15rem; margin-bottom: 8px; }
.corp-col-cuerpo p {
    font-size: .92rem;
    line-height: 1.6;
    flex: 1;
    margin-bottom: 18px;
}
.corp-col-cuerpo .btn { align-self: flex-start; }

/* ---------- 3, 4 y 5) Rejillas de logos con zoom al pasar el mouse ---------- */
.logo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
}
.logo-grid-grande {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
    margin: 0 auto;
}

.logo-celda {
    aspect-ratio: 3 / 2;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px;
    overflow: hidden;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.logo-celda img {
    max-width: 150%;
    max-height: 150%;
    object-fit: contain;
    /* los logos arrancan en gris para que 30 marcas distintas se vean
       parejas; al pasar el mouse recuperan su color. Si prefieres que
       siempre estén a color, borra estas dos líneas y el filter del hover. */
    filter: grayscale(100%);
    opacity: .72;
    transition: filter .25s ease, opacity .25s ease, transform .25s ease;
}
.logo-celda:hover {
    transform: scale(1.08);
    border-color: var(--blue-500);
    box-shadow: 0 12px 28px rgba(11, 36, 71, .14);
    z-index: 2;
}
.logo-celda:hover img {
    filter: grayscale(0);
    opacity: 1;
    transform: scale(1.06);
}
.logo-grid-grande .logo-celda { aspect-ratio: 5 / 3; padding: 10px; }

.corp-cuatro .corp-col-img { height: 170px; }
.corp-cuatro .corp-col-cuerpo { padding: 20px; }

/* recuadro de respaldo cuando la imagen todavía no existe */
.ph-texto {
    font-size: .74rem;
    font-weight: 600;
    color: #9aa9bf;
    text-align: center;
    letter-spacing: .03em;
}
.corp-col-img .ph-texto { font-size: 1rem; color: var(--navy-900); opacity: .45; }

/* ---------- Controles ---------- */
.corp-controles {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    margin-top: 30px;
}
.corp-flecha {
    width: 40px; height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--white);
    color: var(--navy-900);
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s ease, border-color .2s ease, color .2s ease;
}
.corp-flecha:hover { background: var(--navy-900); border-color: var(--navy-900); color: #fff; }

.corp-puntos { display: flex; gap: 8px; }
.corp-puntos button {
    width: 8px; height: 8px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: var(--border);
    cursor: pointer;
    transition: background .25s ease, width .25s ease;
}
.corp-puntos button.activo { background: var(--gold-500); width: 24px; border-radius: 999px; }