/**
 * Process Section Styles - Slider Version
 * Optimizado para máximo rendimiento:
 * - content-visibility para render diferido
 * - contain para isolation de layout
 * - will-change controlado
 * - GPU acceleration donde es necesario
 */

/* ========================================
   Section Container
   ======================================== */
.section-process {
    position: relative;
    width: 100%;
    height: 700px;
    overflow: hidden;
    /* Optimización: el navegador puede saltar el render si no es visible */
    content-visibility: auto;
    contain-intrinsic-size: 0 700px;
    /* Isolation de layout y paint */
    contain: layout style;
}

/* ========================================
   Slides Container
   ======================================== */
.process-slider {
    position: relative;
    width: 100%;
    height: 100%;
    contain: strict;
}

/* ========================================
   Individual Slide
   ======================================== */
.process-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    z-index: 1;
    contain: strict;
    /* Transición optimizada - solo opacity para mejor rendimiento */
    transition: opacity 0.5s ease-out, visibility 0.5s;
}

.process-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
    /* will-change solo cuando está activo */
    will-change: opacity;
}

/* Slide Background */
.process-slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    contain: strict;
}

/* Overlay para atenuar la imagen y dar protagonismo al texto */
.process-slide-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.65);
    z-index: 1;
    pointer-events: none;
}

.process-slide-bg img,
.process-slide-bg picture {
    display: block;
    width: 100%;
    height: 100%;
}

.process-slide-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: grayscale(20%);
    /* Aspect ratio para evitar CLS */
    aspect-ratio: 1920 / 800;
}

/* Lazy loading transition */
.process-slide-bg img.lazy-image {
    opacity: 0;
    transition: opacity 0.4s ease-out;
}

.process-slide-bg img.lazy-image.loaded {
    opacity: 1;
}

/* ========================================
   Slide con Video
   ======================================== */
.process-slide-bg-video {
    background: #121212;
}

.process-slide-bg-video::after {
    background: rgba(255, 255, 255, 0.55);
}

.process-video-poster {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.5s ease-out;
    z-index: 0;
}

.process-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease-out;
    z-index: 1;
}

.process-video.loaded {
    opacity: 1;
}

/* ========================================
   Info Box - Slide desde la derecha
   ======================================== */
.process-info-box {
    position: absolute;
    top: 50%;
    right: 0;
    width: 34%;
    padding: 50px 0;
    background: var(--primary-color, #AF997F);
    z-index: 10;
    transform: translate3d(100%, -50%, 0);
    transition: transform 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    overflow: hidden;
    contain: layout style;
    /* GPU acceleration para la animación */
    backface-visibility: hidden;
}

.process-info-box.active {
    transform: translate3d(0, -50%, 0);
}

/* ========================================
   Step Number
   ======================================== */
.process-step-number {
    padding: 0 46px 30px;
    font-family: 'Dosis', sans-serif;
    font-size: 3rem;
    font-weight: 300;
    color: #fff;
    letter-spacing: 0.05em;
}

.process-step-number .current {
    font-weight: 600;
}

.process-step-number .separator {
    margin: 0 8px;
    opacity: 0.5;
}

.process-step-number .total {
    opacity: 0.5;
}

/* ========================================
   Info Content
   ======================================== */
.process-info-content {
    position: relative;
    min-height: 160px;
}

.process-info-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transform: translate3d(30px, 0, 0);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out, visibility 0.4s;
    backface-visibility: hidden;
}

.process-info-item.active {
    position: relative;
    opacity: 1;
    visibility: visible;
    transform: translate3d(0, 0, 0);
    transition-delay: 0.1s;
}

.process-info-box h4 {
    font-size: 26px;
    font-weight: 300;
    color: #fff;
    margin-bottom: 0.5em;
    padding-right: 40px;
    padding-left: 46px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.process-info-box p {
    font-size: 16px;
    font-weight: 400;
    color: #fff;
    line-height: 1.7em;
    padding-right: 40px;
    padding-left: 46px;
    margin: 0;
}

/* ========================================
   Navigation Arrows
   ======================================== */
.process-nav {
    padding: 30px 46px 0;
}

.process-nav .row {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    width: 100%;
}

.process-nav .col-6 {
    flex: 0 0 50%;
    max-width: 50%;
}

.process-nav .col-6:first-child {
    display: flex;
    gap: 10px;
}

.process-nav .col-6:last-child {
    display: flex;
    justify-content: flex-end;
}

.process-nav-prev,
.process-nav-next {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    color: #fff;
    cursor: pointer;
    transition: background-color 0.2s ease-out, border-color 0.2s ease-out;
    /* Touch target mínimo 44x44 */
    min-width: 44px;
    min-height: 44px;
}

.process-nav-prev:hover,
.process-nav-next:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

.process-nav-prev:active,
.process-nav-next:active {
    transform: scale(0.95);
}

.process-nav-prev:focus-visible,
.process-nav-next:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

.process-nav-prev svg,
.process-nav-next svg {
    width: 20px;
    height: 20px;
    pointer-events: none;
}

/* ========================================
   CTA Link - Enlace de contacto
   ======================================== */
.process-cta-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    letter-spacing: 0.02em;
    transition: opacity 0.2s ease-out;
}

.process-cta-link:hover {
    opacity: 0.8;
}

.process-cta-link svg {
    transition: transform 0.2s ease-out;
}

.process-cta-link:hover svg {
    transform: translateX(4px);
}

/* ========================================
   Responsive - Tablet y Mobile (< 992px)
   ======================================== */
@media (max-width: 992px) {
    .section-process {
        height: 500px;
        contain-intrinsic-size: 0 500px;
    }

    .process-info-box,
    .process-info-box.active {
        position: absolute;
        top: 50%;
        bottom: auto;
        left: 0;
        right: 0;
        width: 100%;
        transform: translateY(-50%);
    }

    .process-info-box h4 {
        font-size: 20px;
        padding-left: 30px;
        padding-right: 30px;
        margin-bottom: 0.4em;
    }

    .process-info-box p {
        font-size: 15px;
        padding-left: 30px;
        padding-right: 30px;
    }

    .process-step-number {
        font-size: 2.2rem;
        padding-left: 30px;
        padding-bottom: 20px;
    }

    .process-nav {
        padding: 25px 30px 0;
    }

    .process-info-content {
        min-height: 140px;
    }

    .process-cta-link {
        font-size: 13px;
    }
}

/* ========================================
   Responsive - Mobile pequeño (< 576px)
   ======================================== */
@media (max-width: 576px) {
    .section-process {
        height: 450px;
        contain-intrinsic-size: 0 450px;
    }

    .process-info-box h4 {
        font-size: 18px;
        padding-left: 25px;
        padding-right: 25px;
    }

    .process-info-box p {
        font-size: 14px;
        padding-left: 25px;
        padding-right: 25px;
    }

    .process-step-number {
        font-size: 2rem;
        padding-left: 25px;
    }

    .process-nav {
        flex-wrap: wrap;
        gap: 15px;
        padding: 20px 25px 0;
    }

    .process-nav-prev,
    .process-nav-next {
        width: 44px;
        height: 44px;
    }

    .process-cta-link {
        font-size: 12px;
        order: -1;
        width: 100%;
        justify-content: center;
    }
}

/* ========================================
   Reducir movimiento si el usuario lo prefiere
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .process-slide {
        transition: none;
    }

    .process-info-box {
        transition: none;
    }

    .process-info-item {
        transition: none;
    }

    .process-nav-prev,
    .process-nav-next {
        transition: none;
    }

    .process-slide-bg img {
        transition: none;
    }

    .process-video,
    .process-video-poster {
        transition: none;
    }
}

/* ========================================
   Print styles - ocultar slider
   ======================================== */
@media print {
    .section-process {
        display: none;
    }
}