/* ==========================================================================
   Hero Section with Swiper (Optimized for LCP & Perf)
   ========================================================================== */
.hero-section {
    position: relative;
    width: 100%;
    height: 80vh;
    min-height: 600px;
    background-color: var(--color-bg-alt);
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-slider,
.hero-slider .swiper-slide {
    width: 100%;
    height: 100%;
}

.hero-slider {
    position: relative;
}

.hero-slider .swiper-wrapper {
    width: 100%;
    height: 100%;
}

/* Stable first frame when JavaScript is delayed or unavailable. */
.hero-slider:not(.is-initialized) .swiper-wrapper {
    width: 100%;
    height: 100%;
}

.hero-slider:not(.is-initialized) .swiper-slide:not(:first-child) {
    display: none;
}

.hero-slider:not(.is-initialized) .swiper-slide:first-child .slide-content {
    opacity: 1;
    transform: translateY(0) translateZ(0);
    pointer-events: auto;
}

.hero-slider:not(.is-initialized) .hero-pagination,
.hero-slider:not(.is-initialized) .hero-nav,
.has-single-slide .hero-pagination,
.has-single-slide .hero-nav {
    display: none;
}

@media (min-width: 768px) {
    .hero-slider.is-initialized .swiper-wrapper {
        position: relative;
    }

    .hero-slider.is-initialized .swiper-slide {
        position: absolute;
        inset: 0;
        z-index: 0;
        opacity: 0;
        visibility: hidden;
        transition: opacity 1s ease, visibility 0s linear 1s;
    }

    .hero-slider.is-initialized .swiper-slide-active {
        z-index: 1;
        opacity: 1;
        visibility: visible;
        transition-delay: 0s;
    }
}

.hero-slider .swiper-slide {
    position: relative;
    display: flex;
    align-items: center;
    pointer-events: none;
}

.hero-slider .swiper-slide-active {
    pointer-events: auto;
}

/* Content Optimization */
.slide-content-wrapper {
    position: relative;
    z-index: 3;
    display: flex;
    align-items: center;
    height: 100%;
    pointer-events: none;
}

.slide-content {
    flex: 1;
    max-width: 50%;
    color: var(--color-text);
    opacity: 0;
    transform: translateY(30px) translateZ(0); /* Hardware acceleration */
    will-change: opacity, transform; /* LCP Performance Hint */
    transition: opacity 0.8s cubic-bezier(0.76, 0, 0.24, 1) 0.3s,
                transform 0.8s cubic-bezier(0.76, 0, 0.24, 1) 0.3s;
    z-index: 3;
    pointer-events: none;
}

.swiper-slide-active .slide-content {
    opacity: 1;
    transform: translateY(0) translateZ(0);
    pointer-events: auto;
}

/* Typography */
.slide-title {
    font-size: var(--type-hero-title); /* Ultra-minimalist, high-end typography */
    font-weight: var(--font-bold);
    line-height: 1.1;
    margin-bottom: var(--space-6);
    color: var(--color-text);
}

.slide-title span { color: var(--color-primary); }

.slide-desc {
    font-size: var(--text-lg);
    font-weight: var(--font-light);
    color: rgba(17, 17, 17, 0.7);
    margin-bottom: var(--space-8);
    max-width: 600px;
    line-height: var(--leading-body);
}

.slide-actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* Visuals & Clip Paths */
.slide-visual-wrapper {
    position: absolute;
    top: 0; right: 0;
    width: 60vw;
    height: 100%;
    z-index: 1;
}

.slide-visual-border, .slide-visual {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    inset: 0;
}

.slide-visual-border {
    background-color: var(--color-primary);
    z-index: 2;
    pointer-events: none;
    clip-path: polygon(13.75vw 0, 16.25vw 0, 6.25vw 100%, 3.75vw 100%);
    animation: borderExpand 1.2s cubic-bezier(0.76, 0, 0.24, 1) 0.4s backwards;
    will-change: clip-path;
}

@keyframes borderExpand {
    0% { clip-path: polygon(8.75vw 50%, 11.25vw 50%, 11.25vw 50%, 8.75vw 50%); }
    100% { clip-path: polygon(13.75vw 0, 16.25vw 0, 6.25vw 100%, 3.75vw 100%); }
}

.slide-visual {
    clip-path: polygon(15vw 0, 100% 0, 100% 100%, 5vw 100%);
    overflow: hidden;
    z-index: 1;
}

.slide-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transform: none;
    will-change: auto;
    transition: none;
}

.slide-visual picture {
    display: block;
    width: 100%;
    height: 100%;
}

.swiper-slide-active .slide-visual img { transform: none; }

/* Swiper Controls */
.hero-pagination {
    position: absolute;
    bottom: var(--space-10);
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: var(--container-width);
    padding: 0 var(--space-8);
    display: flex;
    justify-content: flex-start;
    gap: var(--space-2);
    z-index: 10;
}

.hero-pagination .swiper-pagination-bullet {
    width: var(--space-10);
    height: 4px;
    padding: 0;
    background-color: rgba(17, 17, 17, 0.15);
    border: 0;
    border-radius: var(--radius-sm);
    opacity: 1;
    margin: 0;
    transition: background-color var(--transition-base), width var(--transition-base);
    cursor: pointer;
}

.hero-pagination .swiper-pagination-bullet-active {
    background-color: var(--color-primary);
    width: var(--space-16);
}

.hero-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: var(--space-12);
    height: var(--space-12);
    background-color: var(--color-bg);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    z-index: 10;
    cursor: pointer;
    transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
    border: 1px solid var(--color-border-light);
    box-shadow: 0 4px 12px rgba(17, 17, 17, 0.05);
}

.hero-nav:hover {
    background-color: var(--color-primary);
    color: var(--color-bg);
    border-color: var(--color-primary);
}

.hero-nav svg { width: var(--space-5); height: var(--space-5); }
.hero-nav-prev { left: var(--space-8); }
.hero-nav-next { right: var(--space-8); }

/* Responsive Adjustments & Mobile Performance */
@media (max-width: 991px) {
    .hero-section {
        height: auto;
        min-height: calc(100vh - var(--header-height));
        min-height: calc(100svh - var(--header-height));
        padding-top: var(--header-height);
    }

    .slide-visual-border,
    .hero-nav {
        display: none;
    }

    .hero-slider,
    .hero-slider .swiper-slide {
        min-height: calc(100vh - var(--header-height));
        min-height: calc(100svh - var(--header-height));
    }

    .hero-slider .swiper-slide {
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
    }

    .slide-visual-wrapper {
        position: relative;
        top: auto;
        right: auto;
        display: block;
        width: 100%;
        height: 44vh;
        height: clamp(260px, 44svh, 430px);
        flex: none;
    }

    .slide-visual {
        clip-path: none;
    }

    .slide-visual img {
        object-position: center;
    }

    .slide-content-wrapper {
        width: 100%;
        height: auto;
        flex: 1;
        display: flex;
        align-items: flex-start;
        justify-content: flex-start;
        padding-top: var(--space-6);
        padding-bottom: calc(var(--space-12) + var(--space-6));
    }

    .slide-content {
        max-width: 100%;
        text-align: left;
        padding: 0;
    }

    .slide-title {
        max-width: 18ch;
        font-size: 2rem;
        font-size: clamp(1.85rem, 7vw, 2.25rem);
        margin-bottom: var(--space-4);
    }

    .slide-desc {
        max-width: 38rem;
        margin-bottom: var(--space-6);
        font-size: var(--text-base);
    }
    .hero-pagination {
        bottom: var(--space-6);
        padding: 0 var(--space-6);
        justify-content: center;
    }
}

@media (max-width: 767px) {
    .hero-section {
        height: 100vh;
        height: 100svh;
        min-height: 0;
        padding-top: 0;
        background-color: var(--color-text);
    }

    .hero-slider,
    .hero-slider .swiper-wrapper,
    .hero-slider .swiper-slide {
        height: 100%;
        min-height: 0;
    }

    .hero-slider .swiper-wrapper {
        display: block;
        transform: none;
    }

    .hero-slider .swiper-slide {
        position: relative;
        display: none;
        overflow: hidden;
    }

    .hero-slider .swiper-slide:first-child {
        display: flex;
    }

    .slide-visual-wrapper {
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        inset: 0;
        width: 100%;
        height: 100%;
    }

    .slide-visual::after {
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        inset: 0;
        z-index: 2;
        background: linear-gradient(180deg, rgba(8, 8, 8, 0.08) 12%, rgba(8, 8, 8, 0.25) 42%, rgba(8, 8, 8, 0.94) 100%);
        content: '';
        pointer-events: none;
    }

    .slide-visual picture {
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }

    .slide-visual img {
        position: absolute;
        top: 0;
        left: 0;
        display: block;
        width: 100%;
        height: 100%;
        object-position: 61% center;
        -webkit-transform: none;
        transform: none;
        transition: none;
        animation: none;
        will-change: auto;
    }

    .swiper-slide-active .slide-visual img {
        -webkit-transform: none;
        transform: none;
    }

    .slide-content-wrapper {
        position: relative;
        z-index: 3;
        height: 100%;
        min-height: 0;
        align-items: flex-end;
        padding-top: calc(var(--header-height) + var(--space-6));
        padding-bottom: var(--space-6);
        pointer-events: none;
    }

    .hero-slider .swiper-slide:first-child .slide-content {
        max-width: 34rem;
        color: var(--color-bg);
        opacity: 1;
        transform: none;
        pointer-events: auto;
    }

    .slide-title {
        max-width: 19ch;
        margin-bottom: var(--space-4);
        color: var(--color-bg);
        font-size: 2.25rem;
        font-size: clamp(2rem, 9vw, 2.65rem);
        line-height: 1.15;
        letter-spacing: var(--tracking-heading);
    }

    .slide-title span {
        color: #ff302b;
    }

    .slide-desc {
        max-width: 34rem;
        margin-bottom: var(--space-5);
        color: rgba(255, 255, 255, 0.76);
        font-size: 0.9375rem;
    line-height: var(--leading-body-compact);
    }

    .slide-actions .btn {
        min-height: 44px;
        padding: var(--space-3) var(--space-5);
    }

    .hero-pagination {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .hero-slider.is-initialized .swiper-slide,
    .slide-content,
    .hero-pagination .swiper-pagination-bullet {
        transition: none;
    }

    .slide-visual-border {
        animation: none;
    }
}