.corner-loader{
    position: fixed;
    inset: 0;
    z-index: 999999;
    display: none;
    place-items: center;
    background: #000;
    opacity: 1;
    pointer-events: auto;
}

.corner-loader_row{
    --logoSize: clamp(85px, 12vw, 135px);
    --gap: clamp(10px, 2.8vw, 18px);
    display: inline-flex;
    align-items: center;
    gap: var(--gap);
    --preShift: 0px;
    transform: translateX(var(--preShift));
}

.corner-logo{
    --size: var(--logoSize);
    --overlap: 1px;
    width: var(--size);
    height: var(--size);
    position: relative;
    perspective: 900px;
    transform-style: preserve-3d;
}

.corner-loader.run .corner-loader_row{
    animation: rowToCenter .55s cubic-bezier(.16,1,.3,1) forwards;
    animation-delay: 2.10s;
}

@keyframes rowToCenter{
    to{ transform: translateX(0); }
}

.corner-logo_under{
    position: absolute;
    inset: 0;
    background: url(images/darklogo.svg) center/contain no-repeat;
    filter: drop-shadow(0 14px 26px rgba(0,0,0,.55));
    opacity: 1;
}

.flap{
    position: absolute;
    width: calc(50% + var(--overlap));
    height: calc(50% + var(--overlap));
    background-image: url(images/logo.svg);
    background-size: calc(200% + (var(--overlap) * 2)) calc(200% + (var(--overlap) * 2));
    background-repeat: no-repeat;
    backface-visibility: hidden;
    transform-style: preserve-3d;
    outline: none;
    box-shadow: none;
}

.flap.tl{
    top: 0;
    left: 0;
    background-position: 0% 0%;
    transform-origin: 0% 0%;
}

.flap.tr{
    top: 0;
    left: calc(50% - var(--overlap));
    background-position: 100% 0%;
    transform-origin: 100% 0%;
}

.flap.br{
    top: calc(50% - var(--overlap));
    left: calc(50% - var(--overlap));
    background-position: 100% 100%;
    transform-origin: 100% 100%;
}

.flap.bl{
    top: calc(50% - var(--overlap));
    left: 0;
    background-position: 0% 100%;
    transform-origin: 0% 100%;
}

.corner-copy{
    display: inline-flex;
    align-items: center;
    gap: 16px;
    opacity: 0;
    transform: translateX(-10px);
}

.corner-sep{
    width: 2.5px;
    height: clamp(44px, 6.5vw, 88px);
    background: #ffff;
    opacity: .9;
    transform: scaleY(0);
    transform-origin: center;
}

.corner-text{
    font-family: var(--font-sans);
    font-weight: 600;
    letter-spacing: clamp(1px, 0.35vw, 2px);
    color: #ffff;
    font-size: clamp(1.15rem, 3.4vw, 5rem);
    white-space: nowrap;
}

.corner-loader.run .flap.tl{
    animation: foldTL .58s cubic-bezier(.16,1,.3,1) forwards;
    animation-delay: .10s;
}
.corner-loader.run .flap.tr{
    animation: foldTR .58s cubic-bezier(.16,1,.3,1) forwards;
    animation-delay: .62s;
}
.corner-loader.run .flap.br{
    animation: foldBR .58s cubic-bezier(.16,1,.3,1) forwards;
    animation-delay: 1.14s;
}
.corner-loader.run .flap.bl{
    animation: foldBL .58s cubic-bezier(.16,1,.3,1) forwards;
    animation-delay: 1.66s;
}

.corner-loader.run .corner-copy{
    animation: copyIn .55s cubic-bezier(.16,1,.3,1) forwards;
    animation-delay: 2.10s;
}
.corner-loader.run .corner-sep{
    animation: sepIn .45s cubic-bezier(.16,1,.3,1) forwards;
    animation-delay: 2.10s;
}

.corner-loader.run{
    animation: loaderOut .7s cubic-bezier(.16,1,.3,1) forwards;
    animation-delay: 3s;
}

@keyframes foldTL{
    0% { transform: rotateY(0deg); opacity: 1; }
    100%{ transform: rotateY(-105deg) translateX(10%); opacity: 0; }
}

@keyframes foldTR{
    0% { transform: rotateX(0deg); opacity: 1; }
    100%{ transform: rotateX(105deg) translateY(10%); opacity: 0; }
}

@keyframes foldBR{
    0% { transform: rotateY(0deg); opacity: 1; }
    100%{ transform: rotateY(105deg) translateX(-10%); opacity: 0; }
}

@keyframes foldBL{
    0% { transform: rotateX(0deg); opacity: 1; }
    100%{ transform: rotateX(-105deg) translateY(-10%); opacity: 0; }
}

@keyframes copyIn{
    from{ opacity: 0; transform: translateX(-10px); }
    to  { opacity: 1; transform: translateX(0); }
}

@keyframes sepIn{
    from{ transform: scaleY(0); }
    to  { transform: scaleY(1); }
}

@keyframes loaderOut{
    to{ opacity: 0; transform: scale(1.02); pointer-events:none; }
}

@media (prefers-reduced-motion: reduce){
  .corner-loader, .flap, .corner-copy, .corner-sep{ animation: none !important; }
  .corner-copy{ opacity: 1; transform: none; }
  .corner-sep{ transform: scaleY(1); }
}


/* Original brand reveal, scoped to the shared header. */
.presentation .brand { padding:5px 14px 5px 5px; }
.brand-logo { position: relative; flex: 0 0 auto; width: clamp(38px,calc(60 * var(--design-unit,1px)),100px); aspect-ratio: 1; }
.brand-logo img { position:absolute; inset:0; width:100%; height:100%; transition:opacity .5s ease-out; }
/* White artwork occupies 73/80 of its canvas. Match its diameter and origin. */
.brand-logo .brand-color { opacity:0; transform:scale(.9125); transform-origin:0 0; }
.brand-copy strong,.brand-copy small { transition: color .6s ease-in-out; }
@media (hover:hover) and (pointer:fine) {

 .brand:hover .brand-color { opacity:1; }
 .brand:hover .brand-dark { opacity:0; }

}
html.booting .corner-loader { display:grid; }
html.booting { overflow:hidden; }
.corner-loader { pointer-events:none; }
@view-transition { navigation: auto; }
::view-transition-old(root),::view-transition-new(root) { animation-duration:1400ms; animation-timing-function:cubic-bezier(.22,1,.36,1); animation-fill-mode:both; mix-blend-mode:normal; }
::view-transition-old(root) { animation-name:page-out-forward; }
::view-transition-new(root) { animation-name:page-in-forward; }
html[data-direction="back"]::view-transition-old(root) { animation-name:page-out-back; }
html[data-direction="back"]::view-transition-new(root) { animation-name:page-in-back; }
@keyframes page-out-forward { to { transform:translateX(-100%); } }
@keyframes page-in-forward { from { transform:translateX(100%); } }
@keyframes page-out-back { to { transform:translateX(100%); } }
@keyframes page-in-back { from { transform:translateX(-100%); } }
@media (max-width:1020px), (max-height:600px), (prefers-reduced-motion:reduce) {
 ::view-transition-old(root),::view-transition-new(root) { animation:none; }
}
@media (max-width:1020px) {
 .corner-loader_row { --logoSize:clamp(50px,12vw,85px); --gap:10px; max-width:calc(100% - 2rem); }
 .corner-copy { gap:10px; min-width:0; }
 .corner-text { font-size:clamp(.875rem,3vw,1.4rem); letter-spacing:.05em; }
 .brand-logo { width:44px; }
}
@media (prefers-reduced-motion:reduce) {
 html.booting .corner-loader { display:none; }
 .presentation .brand,.brand-logo img,.brand-copy strong,.brand-copy small { transition:none; }
}
html.booting .corner-loader { pointer-events:auto; }