.ds5-about { background: var(--c-bg); }
.about-main { overflow: clip; }
.about-header { position: fixed; inset: clamp(1.5rem, 5.7vh, 4rem) 4.17vw auto; z-index: 30; display: flex; align-items: center; justify-content: space-between; mix-blend-mode: difference; color: white; font-family: var(--f-en); line-height: 1; }
.about-header :is(img, .ds5-wordmark) { width: clamp(10rem, 16.74vw, 22rem); height: auto; filter: brightness(0) invert(1); }
.about-header > a:last-child { font-size: 1rem; padding: .5rem; }
.about-intro { position: relative; background: var(--c-bg); }
.about-scene { height: 100svh; min-height: 38rem; position: relative; overflow: hidden; }
.about-label { position: absolute; top: 20.8%; left: 7.7%; margin: 0; font: 400 clamp(2rem, 4.025vw, 5rem)/1 var(--f-en); }
.about-legacy-visual { position: absolute; inset: 18% 0 15%; }
.about-headline { position: absolute; inset: 0; display: grid; place-items: center; color: var(--c-ink); }
.about-headline .typing-text-container { text-align: center; }
.about-headline [data-typing-text] { min-height: 1em; font: 400 clamp(2.8rem, min(11.54vw, 16.42svh), 14rem)/1 var(--f-en); letter-spacing: -.035em; white-space: nowrap; }
.about-bubbles { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; }
#game-balloons-root { width: min(90vw, 100svh); }
.about-bubbles .game-balloons-container { width: 100%; }
.about-bubbles svg { overflow: visible; }
.about-marquees { position: absolute; top: 88%; left: 0; width: 100%; transform-origin: left top; font: 400 clamp(1.1rem, 2.265vw, 2.8rem)/1.08 var(--f-en); }
.about-marquee { width: 100%; overflow: visible; }
.about-marquee + .about-marquee { margin-top: .02em; }
.about-marquee__track { display: flex; width: max-content; animation: about-marquee 48s linear infinite; }
.about-marquee__track span { white-space: nowrap; flex-shrink: 0; }
.about-marquee:nth-child(2) .about-marquee__track { animation-direction: reverse; animation-duration: 56s; }
@keyframes about-marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.about-introduction { display: grid; grid-template-columns: 1fr 1fr; gap: 10%; padding: clamp(4rem, 8vw, 9rem) 8% clamp(4rem, 8vw, 9rem) 12.57%; color: var(--c-bg); background: var(--c-ink); }
.about-introduction h2 { margin: 0; font-size: clamp(1.35rem, 2.36vw, 3rem); line-height: 1.6; font-weight: 600; }
.about-introduction p { justify-self: end; margin: 0; font-size: clamp(.875rem, 1.11vw, 1.35rem); line-height: 1.6; }
.about-motion .about-intro { height: 100svh; min-height: 38rem; }
.about-motion .about-scene { height: 100%; min-height: 0; }
.about-motion .about-introduction { position: absolute; inset: auto 0 6.5%; padding-block: 0; background: transparent; }
.about-archives { position: relative; isolation: isolate; color: var(--c-bg); background: var(--c-ink); padding-bottom: 0; }
.about-archives-heading { min-height: 100svh; display: grid; place-items: center; }
.about-archives-heading h2 { margin: 0; font: 400 clamp(3.5rem, 7.47vw, 10rem)/1 var(--f-en); }
.about-events { position: relative; z-index: 1; }
.about-motion .about-archives-heading { position: sticky; top: 0; height: 100svh; z-index: 0; pointer-events: none; }
.about-motion .about-archives-heading h2 { mask-size: 16px 16px; -webkit-mask-size: 16px 16px; mask-repeat: repeat; -webkit-mask-repeat: repeat; }
.about-motion .about-events { margin-top: 35svh; }
.about-event { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.92fr); gap: 0; padding: clamp(3rem, 8vw, 10rem) var(--page-gutter); }
.about-event__info { position: sticky; top: 18vh; align-self: start; min-height: 65vh; padding-right: 18%; display: flex; flex-direction: column; justify-content: space-between; gap: 3rem; font-family: var(--f-en); }
.about-event__info h3, .about-event__info p { font-size: clamp(1rem, 1.32vw, 1.75rem); font-weight: 400; line-height: 1.45; margin: 0; }
.about-event__info .about-event__theme { font-size: clamp(1.75rem, 3.08vw, 4rem); line-height: 1.2; }
.about-event__info .about-event__number { font-size: clamp(3.5rem, 7.47vw, 10rem); line-height: 1.1; }
.about-event__link { display: inline-flex; gap: 2em; border-bottom: 1px solid currentColor; padding: .6em 0; font-size: 1rem; }
.about-event__photos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(1rem, 2.78vw, 4rem); align-content: start; }
.about-event__photos figure { margin: 0; overflow: hidden; }
.about-event__photos img { width: 100%; height: auto; aspect-ratio: 340 / 191; object-fit: cover; }
.about-event__photos figure:only-child { grid-column: 1 / -1; }
.about-event__photos figure:only-child img { aspect-ratio: var(--image-ratio, 340 / 191); }
.about-collaboration { position: relative; min-height: 115svh; background: var(--c-bg); overflow: hidden; padding: 58svh 9.65% 7rem; }
.about-collaboration__circles { --circle-size: min(66vw, 78svh); position: absolute; inset: 0; pointer-events: none; }
.about-collaboration__circles img { position: absolute; width: var(--circle-size); max-width: none; height: auto; }
.about-collaboration__circles img:first-of-type { top: 10svh; left: calc(27% - var(--circle-size) / 2); }
.about-collaboration__circles img:last-of-type { top: 14svh; left: calc(73% - var(--circle-size) / 2); }
.about-collaboration__body { position: relative; width: max-content; max-width: 100%; }
.about-collaboration h2 { margin: 0 0 1em; font-size: clamp(2rem, 3.05vw, 4rem); line-height: 1.6; font-weight: 600; }
.about-collaboration p { font-size: clamp(.875rem, 1.042vw, 1.25rem); line-height: 2.13; margin: 0 0 2em; }
.about-collaboration .btn { gap: 4em; }
.ds5-about .site-footer { margin-top: 0; }
@media (max-width: 600px) {
 .about-header { left: 6%; right: 6%; }
 .about-label { top: 20%; left: 6%; font-size: 2rem; }
 .about-legacy-visual { inset: 24% 0 26%; }
 .about-headline [data-typing-text] { font-size: 12vw; }
 #game-balloons-root { width: 135vw; transform: translateX(-17.5vw); }
 .about-marquees { font-size: 1.125rem; top: 86%; }
 .about-introduction { grid-template-columns: 1fr; gap: 1.5rem; padding: 3rem 6%; }
 .about-introduction p { justify-self: start; font-size: .875rem; }
 .about-motion .about-introduction { bottom: 5%; padding-inline: 6%; gap: 1rem; }
 .about-introduction h2 { font-size: 1.35rem; }
 .about-event { grid-template-columns: 1fr; gap: 2rem; }
 .about-event__info { position: static; min-height: 0; display: grid; grid-template-columns: 1fr 1fr; padding: 0; gap: 1.5rem; }
 .about-event__info > :last-child { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: end; }
 .about-event__photos { grid-template-columns: 1fr; gap: 1rem; }
 .about-collaboration { padding: 45svh 6% 5rem; min-height: 100svh; }
 .about-collaboration p br { display: none; }
 .about-collaboration__circles { --circle-size: 60vw; }
 .about-collaboration__circles img:first-of-type { top: 9svh; left: calc(18% - var(--circle-size) / 2); }
 .about-collaboration__circles img:last-of-type { top: 12svh; left: calc(82% - var(--circle-size) / 2); }
}
@media (prefers-reduced-motion: reduce) { .about-marquee__track { animation: none; } .about-bubbles circle { transition: none !important; } }

/* #2 opens a new event-colored chapter, directly below its rule. */
.about-event--tokyo { background: transparent; color: inherit; border-top: 1px solid currentColor; padding-top: clamp(1.5rem, 2.5vw, 3rem); }
.about-event:last-child { padding-bottom: max(5rem, 10vw); }

/* One masked grey surface rises over the opening key visual. */
.about-rise { position:relative; overflow:hidden; background:var(--c-ink); color:var(--c-bg); }
.about-rise .about-marquees { position:relative; top:auto; padding-top:10svh; font-size:clamp(2rem,10vw,9rem); }
.about-rise .about-introduction { position:relative; inset:auto; background:transparent; }
.about-motion .about-rise { position:absolute; inset:0; z-index:2; display:flex; flex-direction:column; justify-content:space-between; overflow:hidden; clip-path:inset(100% 0 0); }
.about-motion .about-rise .about-introduction { padding-block:4svh 6.5svh; }
@media(max-width:600px) {
 .about-rise .about-marquees { padding-top:18svh; }
 .about-motion .about-rise .about-introduction { padding-bottom:5svh; }
}

/* Keep final glyph widths throughout the slash-to-genre typing sequence. */
.about-marquee__track .about-marquee__glyph { display:inline-block; position:relative; }
.about-marquee__glyph > span { visibility:hidden; }
.about-marquee__glyph[data-state=slash]::before { content:'/'; position:absolute; inset:0; text-align:center; }
.about-marquee__glyph[data-state=letter] > span { visibility:visible; }

/* Larger four-line mobile copy keeps the original overlap with the circles. */
.about-headline__theme { line-height:1; }
@media(max-width:600px) {
 .about-label { top:18%; }
 .about-legacy-visual { inset:26% 0 7%; }
 .about-headline { align-items:center; }
 .about-headline [data-typing-text] { font-size:19vw; }
 .about-headline__theme > span { display:block; }
 .about-bubbles { inset:0; }
 #game-balloons-root { width:110vw; transform:translateX(-5vw); }
}

/* KV outline replaces the frosted spheres; the shared player keeps stepping. */
.about-outline { width:86%; height:90%; pointer-events:none; }
.about-outline canvas { display:block; width:100%; height:100%; }
@media(max-width:600px) { .about-outline { width:94%; height:90%; } }