/* Bộ biểu ngữ UNIT: ảnh thời trang là điểm nhấn, chuyển động hỗ trợ thao tác. */
.site-header {
    position: sticky;
    top: 0;
    background: #fffffff5;
    backdrop-filter: blur(16px);
    box-shadow: 0 6px 24px #102d4b06;
}
.site-header nav a { position: relative; padding: 8px 0; }
.site-header nav a::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
    background: var(--blue); transform: scaleX(0); transform-origin: left;
    transition: transform .22s ease;
}
.site-header nav a:hover { text-decoration: none; }
.site-header nav a:hover::after, .site-header nav a:focus-visible::after { transform: scaleX(1); }
.button span, .banner-link span, .campaign-link span { display: inline-block; transition: transform .22s ease; }
.button:hover span, .banner-link:hover span { transform: translate(3px, -3px); }
.campaign-link:hover span { transform: translateY(4px); }
.button:active { transform: translateY(1px); }

.campaign-hero {
    position: relative; isolation: isolate; overflow: hidden;
    min-height: 660px; height: min(53vw, 800px); color: white; background: #0b2038;
}
.campaign-image, .campaign-shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.campaign-image {
    object-fit: cover; object-position: center 18%;
    transform: translate(var(--hero-x, 0px), calc(var(--hero-y, 0px) + var(--hero-scroll, 0px))) scale(1.065);
    transition: transform .8s cubic-bezier(.2,.65,.3,1);
}
.campaign-shade {
    background: linear-gradient(90deg, #061729b8 0%, #091e3445 43%, transparent 68%), linear-gradient(0deg, #071b35ad, transparent 25%);
    pointer-events: none;
}
.campaign-copy { position: relative; padding: 70px 7% 115px; max-width: 850px; }
.campaign-intro { font-size: .9rem; color: #d2e2f4; margin-bottom: 32px; }
.campaign-copy h1 { font-size: clamp(4.5rem, 7.8vw, 8rem); letter-spacing: -.065em; line-height: 1.01; margin-bottom: 26px; }
.campaign-copy > p:not(.campaign-intro) { color: #e0e9f3; font-size: 1.05rem; line-height: 1.7; }
.campaign-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; margin-top: 32px; }
.campaign-actions .button { min-height: 56px; box-shadow: 0 10px 25px #0000001a; }
.campaign-actions .button:hover { background: #e7f1ff; border-color: #e7f1ff; }
.campaign-link { font-size: .84rem; padding: 12px 0; display: inline-flex; gap: 14px; align-items: center; }
.campaign-link:hover { text-decoration: underline; text-underline-offset: 6px; }
.campaign-bottom {
    position: absolute; bottom: 0; left: 7%; right: 7%; display: flex; justify-content: space-between;
    gap: 20px; border-top: 1px solid #ffffff38; padding: 20px 0; color: #d6e2ed; font-size: .75rem;
}
.campaign-bottom span:last-child { font-size: .68rem; }
.headline-mask { display: block; overflow: hidden; padding: .08em 0; margin: -.08em 0; }
.headline-mask > span { display: block; }
.reading-progress { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--blue); transform: scaleX(0); transform-origin: left; pointer-events: none; }
html { scroll-padding-top: 112px; }
@keyframes campaign-intro { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }

.collection-section { padding-top: 75px; padding-bottom: 30px; scroll-margin-top: 112px; }
.collection-description { color: var(--muted); font-size: .88rem; margin-bottom: 0; }
.collection-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.collection-banner { position: relative; isolation: isolate; min-height: 490px; color: white; background: #071b35; overflow: hidden; border-radius: 8px; }
.photo-collection > img { position: absolute; width: 100%; height: 100%; object-fit: cover; object-position: 85% center; transition: transform .7s cubic-bezier(.2,.65,.3,1); }
.collection-banner::after { content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none; background: linear-gradient(0deg, #04152bef 0%, #071b3570 48%, #071b3500 78%); }
.collection-copy { position: absolute; left: 38px; right: 38px; bottom: 32px; z-index: 2; pointer-events: none; }
.collection-copy p { font-size: .82rem; color: #d8e7f8; margin-bottom: 16px; }
.collection-copy h3 { font-size: clamp(2.5rem, 3.4vw, 3.6rem); letter-spacing: -.045em; line-height: 1.04; margin-bottom: 24px; }
.banner-link { pointer-events: auto; font-size: .87rem; display: inline-flex; align-items: center; justify-content: space-between; gap: 30px; border-bottom: 1px solid #ffffff80; padding: 10px 0; min-height: 44px; }
.banner-link:hover { border-color: white; }
.fabric-collection .cloth-stage { position: absolute; inset: 0; min-height: 0; }
.fabric-collection .cloth-fallback span { font-size: clamp(6rem, 12vw, 12rem); align-self: start; margin-top: 50px; }
.fabric-collection .motion-toggle { top: 20px; right: 20px; bottom: auto; z-index: 3; min-height: 44px; background: #06172bdd; }
.fabric-collection .cloth-stage { overflow: visible; }
.fabric-collection::after { z-index: 1; }
.fabric-collection .cloth-stage iframe, .fabric-collection .cloth-fallback { overflow: hidden; }
.home-products { padding-top: 45px; }
.editorial { overflow: hidden; border-radius: 8px; }
.editorial-image { transition: background-size .6s ease; }
.product-image { border-radius: 6px; }
.category-row a { transition: background .2s, border-color .2s; }

.catalog-banner { position: relative; isolation: isolate; overflow: hidden; background: #0b2038; color: white; min-height: 355px; }
.catalog-banner > img { position: absolute; right: 0; top: 0; width: 68%; height: 100%; object-fit: cover; object-position: right top; }
.catalog-banner::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, #0b2038 28%, #0b2038d9 43%, #0b203810 100%); pointer-events: none; }
.catalog-banner > div { position: relative; z-index: 1; padding: 45px 7%; }
.catalog-banner h1 { font-size: clamp(3rem, 4.8vw, 5rem); margin-bottom: 18px; }
.catalog-banner p { color: #d4e2f0; font-size: .85rem; }
.catalog-banner p:first-child { font-size: .76rem; margin-bottom: 24px; }
.catalog-section { padding-top: 40px; }

@media (hover: hover) and (pointer: fine) {
    .photo-collection:hover > img { transform: scale(1.045); }
    .collection-banner { transition: box-shadow .3s ease; }
    .collection-banner:hover { box-shadow: 0 18px 40px #102d4b20; }
}
@media (max-width: 1050px) {
    .campaign-hero { min-height: 630px; }
    .campaign-copy { padding: 75px 6% 100px; max-width: 640px; }
    .campaign-copy h1 { font-size: 5.7rem; }
    .campaign-actions { align-items: start; flex-direction: column; gap: 10px; }
    .campaign-shade { background: linear-gradient(90deg, #061729db, #06172930 75%), linear-gradient(0deg, #071b35aa, transparent 35%); }
    .collection-banner { min-height: 430px; }
    .collection-copy { left: 26px; right: 26px; bottom: 24px; }
}
@media (max-width: 700px) {
    html { scroll-padding-top: 90px; }
    .site-header { backdrop-filter: none; background: white; }
    .site-header nav.open { animation: campaign-intro .18s ease both; }
    .campaign-hero { height: auto; min-height: 740px; display: flex; align-items: end; }
    .campaign-image { height: 465px; object-position: 85% top; transform: none; }
    .campaign-shade { background: linear-gradient(0deg, #0b2038 0%, #0b2038 34%, #0b2038e6 44%, #0b203800 72%); }
    .campaign-copy { padding: 330px 6% 75px; width: 100%; }
    .campaign-intro { font-size: .75rem; margin-bottom: 16px; }
    .campaign-copy h1 { font-size: clamp(3.5rem, 15vw, 4.6rem); line-height: 1.03; margin-bottom: 18px; }
    .campaign-copy > p:not(.campaign-intro) { font-size: .9rem; }
    .campaign-actions { margin-top: 23px; gap: 8px; }
    .campaign-actions .button { min-height: 50px; }
    .campaign-link { font-size: .78rem; }
    .campaign-bottom { left: 6%; right: 6%; padding: 15px 0; }
    .campaign-bottom span:first-child { font-size: .65rem; max-width: 23ch; }
    .campaign-bottom span:last-child { font-size: .6rem; max-width: 15ch; text-align: right; }
    .collection-section { padding-top: 40px; padding-bottom: 15px; scroll-margin-top: 90px; }
    .collection-section .section-heading { display: block; }
    .collection-description { margin-top: 15px; font-size: .8rem; }
    .collection-description br { display: none; }
    .collection-grid { grid-template-columns: 1fr; gap: 18px; }
    .collection-banner { min-height: 440px; }
    .collection-copy h3 { font-size: 2.9rem; }
    .photo-collection > img { object-position: 85% center; }
    .fabric-collection .cloth-fallback span { font-size: 6rem; }
    .home-products { padding-top: 35px; }
    .catalog-banner { min-height: 300px; }
    .catalog-banner > img { width: 100%; object-position: 80% top; opacity: .48; }
    .catalog-banner::after { background: linear-gradient(90deg, #0b2038e6, #0b203845); }
    .catalog-banner > div { padding: 35px 6%; }
    .catalog-banner h1 { font-size: 3rem; }
    .catalog-banner p:last-child { max-width: 27ch; }
    .catalog-section { padding-top: 25px; }
}
@media (prefers-reduced-motion: reduce) {
    .campaign-copy, .site-header nav.open { animation: none; }
    .campaign-image, .photo-collection:hover > img { transform: none; }
    .campaign-image, .photo-collection > img, .banner-link span { transition: none; }
}
@media print { .campaign-hero, .collection-section, .catalog-banner { display: none; } }