/* 郝思澄 Zane Hao · portfolio prototype v0.1
   Layout grammar from sebastian-wittig.design, re-tuned dark.
   Every colour on the page comes from the tokens below; themes only swap the accent. */

/* ---------- tokens ---------- */
:root{
  color-scheme:dark;
  --bg:#0a0a0b;
  --bg-2:#0f0f11;
  --bg-3:#17171a;
  --line:rgba(255,255,255,.075);
  --line-2:rgba(255,255,255,.15);
  --text:#ececec;
  --text-2:#a4a4a9;
  --text-3:#88888e;   /* 4.5:1 or better on every surface, including the #17171a hover fill */
  --ok:#4ade80;
  --accent:#f2f2f2;
  --accent-ink:#0a0a0b;
  --hl:rgba(255,255,255,.085);

  --t-0:#0c0c0e;
  --t-1:#111114;
  --t-2:#18181c;
  --t-3:#212126;
  --t-a2:color-mix(in oklab,var(--accent) 45%,var(--bg));
  --t-a1:var(--accent);

  --font-sans:"Geist","Noto Sans TC",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"Geist Mono",ui-monospace,SFMono-Regular,Consolas,"Noto Sans TC",monospace;

  --gl:clamp(1.25rem,18.5vw,19rem);   /* left gutter: the content column starts on this rule */
  --gr:clamp(1.25rem,11.8vw,12rem);   /* right gutter */
  --edge:clamp(1rem,3vw,2.75rem);     /* inset of the fixed frame */
  --top:clamp(1.25rem,5.5vh,3.25rem);

  --ease-out:cubic-bezier(.16,1,.3,1);
  --ease-io:cubic-bezier(.76,0,.24,1);
}
/* amber is the default: the orange of a Bloomberg terminal, and neither red nor green, which mean up and down
   on Taiwanese stock quotes */
html[data-theme="amber"]{--accent:#ffa028;--accent-ink:#0a0a0b}
html[data-theme="acid"]{--accent:#d4ff3f;--accent-ink:#0a0a0b}
html[data-theme="signal"]{--accent:#ff5b1f;--accent-ink:#0a0a0b}
html[data-theme="klein"]{--accent:#4d6bff;--accent-ink:#ffffff}
@supports not (color:color-mix(in oklab,red,blue)){:root{--t-a2:#5c5c60}}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html[data-mode="live"] .tweaks,html[data-mode="live"] .proto-only{display:none!important}
html[data-mode="live"] .ov__media:not(.has-img){display:none}
html{background:var(--bg);-webkit-text-size-adjust:100%;scrollbar-width:thin;scrollbar-color:#2a2a2f var(--bg);scrollbar-gutter:stable}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-stopped{overflow:clip}
.lenis.lenis-smooth [data-lenis-prevent]{overscroll-behavior:contain}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:clip}
::selection{background:var(--accent);color:var(--accent-ink)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
canvas{display:block}
:focus-visible{outline:1px solid var(--accent);outline-offset:3px}
[tabindex="-1"]:focus{outline:none} /* sections that only receive focus after an in-page jump */
.skip{position:fixed;left:1rem;top:-4rem;z-index:200;padding:.65rem .9rem;background:var(--text);color:var(--bg);font:500 .8rem/1 var(--font-mono);transition:top .2s}
.skip:focus{top:1rem}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- frame: rules, grain, fixed chrome ---------- */
.gridlines{position:fixed;inset:0;z-index:1;pointer-events:none}
.gl{position:absolute;top:0;bottom:0;width:1px;background:var(--line);transform:scaleY(0);transform-origin:top;transition:transform 1.6s var(--ease-out)}
.is-loaded .gl,html:not(.js) .gl{transform:none}
.gl--l{left:var(--gl)}
.gl--r{right:var(--gr)}
.gl__tick{position:absolute;left:0;top:0;width:1px;height:72px;background:var(--accent);will-change:transform}
.grain{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.05;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* the chrome blends with "difference", so it stays readable over black, white and accent alike */
.chrome{position:fixed;left:0;right:0;top:0;height:0;z-index:85;mix-blend-mode:difference;color:#fff} /* above .mnav so the menu button can close it */
.brand{position:absolute;left:var(--edge);top:var(--top);display:flex;flex-direction:column;align-items:flex-start;max-width:calc(var(--gl) - var(--edge) - .75rem)}
.brand__hello{display:flex;align-items:center;gap:.35em;margin-bottom:.45rem;font:500 .72rem/1 var(--font-mono);letter-spacing:.02em;color:#8a8a8a}
.caret{display:inline-block;width:.55em;height:1.05em;background:#fff;animation:blink 1.05s steps(1) infinite}
.brand__name{font-weight:600;font-size:1.3rem;line-height:1.1;letter-spacing:-.01em;color:#fff;white-space:nowrap}
.brand__sur{margin-left:.15em;font-weight:500;color:#8c8c8c}
.brand__tag{display:block;margin-top:.5rem;font:500 .7rem/1.45 var(--font-mono);letter-spacing:.04em;color:#9a9a9a}
.status{display:inline-block;width:.5rem;height:.5rem;margin-left:.5rem;border-radius:50%;background:var(--ok);vertical-align:.02em;animation:ping 2.4s var(--ease-out) infinite}
/* single menu button (every screen size): 選單 MENU, with a 中 / EN hint so foreign visitors find the language switch */
.menu-btn{position:absolute;right:var(--edge);top:var(--top);display:flex;flex-direction:column;align-items:flex-end;gap:.5rem;padding:.2rem 0;color:#fff;text-align:right}
.menu-btn__row{display:flex;align-items:center;gap:.6rem;font:500 .74rem/1 var(--font-mono);letter-spacing:.16em;text-transform:uppercase}
.menu-btn__label{font-family:var(--font-sans);font-weight:600;letter-spacing:.1em}
.menu-btn__alt{color:#a8a8a8;transition:color .3s}
.menu-btn__icon{position:relative;width:18px;height:10px}
.menu-btn__icon i{position:absolute;left:0;right:0;height:1.5px;background:currentColor;transition:transform .45s var(--ease-out),top .45s var(--ease-out)}
.menu-btn__icon i:nth-child(1){top:0}
.menu-btn__icon i:nth-child(2){top:8.5px}
.menu-btn[aria-expanded="true"] .menu-btn__icon i{top:4.25px}
.menu-btn[aria-expanded="true"] .menu-btn__icon i:nth-child(1){transform:rotate(45deg)}
.menu-btn[aria-expanded="true"] .menu-btn__icon i:nth-child(2){transform:rotate(-45deg)}
.menu-btn__hint{font:500 .62rem/1 var(--font-mono);letter-spacing:.14em;color:#8e8e8e;transition:color .3s}
.menu-btn:hover .menu-btn__alt,.menu-btn:hover .menu-btn__hint{color:#fff}

.rail{position:fixed;bottom:clamp(1.5rem,6vh,3rem);z-index:50;display:flex;flex-direction:column;align-items:center;gap:1.1rem;mix-blend-mode:difference;color:#fff}
.rail--l{left:var(--edge)}
.rail--r{right:var(--edge)}
.seal{display:grid;place-items:center;width:1.75rem;height:1.75rem;border:1px solid #fff;font:700 .85rem/1 var(--font-sans);color:#fff}
.lang{display:flex;flex-direction:column;align-items:center;gap:.45rem;font:500 .72rem/1 var(--font-mono);letter-spacing:.06em}
.lang button{padding:.1rem .2rem;color:#8a8a8a;transition:color .3s}
.lang button:hover,.lang button[aria-pressed="true"]{color:#fff}
.rail--r a{display:grid;place-items:center;width:1.9rem;height:1.9rem;color:#8a8a8a;transition:color .3s}
.rail--r a:hover{color:#fff}
.rail svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* full-screen menu: big numbered links, then language and contact */
.mnav{position:fixed;inset:0;z-index:80;overflow-y:auto;background:var(--bg);clip-path:inset(0 0 100% 0);visibility:hidden;transition:clip-path .75s var(--ease-io),visibility 0s linear .75s}
.mnav.is-open{clip-path:inset(0);visibility:visible;transition:clip-path .75s var(--ease-io),visibility 0s}
.mnav__inner{display:flex;flex-direction:column;justify-content:center;gap:clamp(2rem,6vh,4rem);min-height:100%;padding-top:clamp(7rem,15vh,9rem);padding-bottom:clamp(2rem,6vh,4rem)}
.mnav__inner .kicker{margin:0}
.mnav__links{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.mnav__links a{display:flex;align-items:baseline;gap:clamp(1rem,2.5vw,2.5rem);padding:clamp(.6rem,1.6vh,1.1rem) 0;border-bottom:1px solid var(--line);font-weight:800;font-size:clamp(2.6rem,7vw,6.5rem);line-height:1;letter-spacing:-.04em;text-transform:uppercase;color:var(--text);opacity:0;transform:translateY(40%);transition:transform .8s var(--ease-out),opacity .6s var(--ease-out),color .3s}
html[data-lang="zh"] .mnav__links a{font-weight:900;letter-spacing:.02em}
.mnav.is-open .mnav__links a{opacity:1;transform:none}
.mnav.is-open .mnav__links a:nth-child(2){transition-delay:.06s}
.mnav.is-open .mnav__links a:nth-child(3){transition-delay:.12s}
.mnav__links b{align-self:center;font:500 .8rem/1 var(--font-mono);letter-spacing:.14em;color:var(--text-3)}
.mnav__links span{transition:transform .5s var(--ease-out)}
.mnav__links a:hover span{transform:translateX(.2em)}
.mnav__links a:hover,.mnav__links a.is-active{color:var(--accent)}
.mnav__links a.is-active b{color:var(--accent)}
.mnav__foot{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2rem}
.lang--row{flex-direction:row;align-items:stretch;gap:.5rem}
.mnav .lang button{padding:.75rem 1.1rem;border:1px solid var(--line-2);font-size:.85rem;letter-spacing:.06em;color:var(--text-2);transition:background .3s,color .3s,border-color .3s}
.mnav .lang button:hover{border-color:var(--text);color:var(--text)}
.mnav .lang button[aria-pressed="true"]{background:var(--text);border-color:var(--text);color:var(--bg)}

/* ---------- shared pieces ---------- */
section{position:relative}
.content{padding-left:var(--gl);padding-right:var(--gr)}
.kicker{margin:0 0 1.4rem;font:500 .72rem/1 var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--text-3)}
.intro{margin:0;max-width:21em;font-weight:600;font-size:clamp(1.55rem,2.55vw,2.45rem);line-height:1.2;letter-spacing:-.022em;text-wrap:balance}
html[data-lang="zh"] .intro{max-width:16em;line-height:1.4;letter-spacing:.01em}
.typer{display:block;width:fit-content;min-height:1.3em;margin-top:.3em;padding:.02em .3em .08em;background:var(--hl);color:var(--text);white-space:nowrap}
.typer::after{content:"";display:inline-block;width:.07em;height:.95em;margin-left:.1em;background:var(--accent);vertical-align:-.1em;animation:blink 1s steps(1) infinite}
.typer--accent{background:var(--accent);color:var(--accent-ink)}
.typer--accent::after{background:var(--accent-ink)}

.display{margin:0;font-weight:800;font-size:clamp(2.6rem,8vw,8.5rem);line-height:.86;letter-spacing:-.045em;text-transform:uppercase}
html[data-lang="zh"] .display{font-weight:900;line-height:1.08;letter-spacing:0}
.hl{display:block;overflow:hidden;padding-bottom:.06em}
.hl__in{display:inline-block;white-space:nowrap}
.hl--accent .hl__in{color:var(--accent)}
/* outline for the mono theme: stroke first, then a bg-coloured fill hides the overlapping contours inside CJK glyphs */
html[data-theme="mono"] .hl--accent .hl__in{color:var(--bg);-webkit-text-stroke:.036em var(--text);paint-order:stroke fill}
.js .hero .hl__in,.js .contact .hl__in{transform:translateY(110%);transition:transform 1.2s var(--ease-out)}
.is-loaded .hero .hl__in,.contact.is-in .hl__in{transform:none}
.is-loaded .hero .hl--accent .hl__in,.contact.is-in .hl--accent .hl__in{transition-delay:.12s}

.btn{display:inline-flex;align-items:center;gap:.75rem;margin-top:clamp(2.5rem,6vh,4rem);padding:1rem 1.25rem;border:1px solid var(--line-2);font:500 .75rem/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text);transition:background .3s,color .3s,border-color .3s}
.btn::after{content:"↗";font-family:var(--font-sans);letter-spacing:0}
.btn:hover{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.label{margin:0 0 .85rem;font:500 .68rem/1 var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--text-3)}
.tbd{color:var(--text-3);border-bottom:1px dashed currentColor}
.corners i{position:absolute;width:14px;height:14px;border:0 solid var(--text-3)}
.corners i:nth-child(1){left:-1px;top:-1px;border-left-width:1px;border-top-width:1px}
.corners i:nth-child(2){right:-1px;top:-1px;border-right-width:1px;border-top-width:1px}
.corners i:nth-child(3){left:-1px;bottom:-1px;border-left-width:1px;border-bottom-width:1px}
.corners i:nth-child(4){right:-1px;bottom:-1px;border-right-width:1px;border-bottom-width:1px}

/* ---------- 00 hero ---------- */
.hero{height:260vh}
.hero__sticky{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden}
.hero__globe{position:absolute;inset:0;width:100%;height:100%}
.hero__rules i{position:absolute;left:0;right:0;height:1px;background:var(--line);transform:scaleX(0);transform-origin:left;transition:transform 1.6s var(--ease-out)}
.is-loaded .hero__rules i{transform:none}
.hero__rules i:nth-child(1){top:18vh}
.hero__rules i:nth-child(2){top:25vh;transition-delay:.08s}
.hero__rules i:nth-child(3){top:32vh;transition-delay:.16s}
.hero__title{position:absolute;left:var(--gl);right:var(--gr);bottom:clamp(3rem,10vh,6.5rem);z-index:2;font-size:clamp(2.6rem,7.4vw,8rem)}
html[data-lang="zh"] .hero__title{font-size:clamp(2.8rem,8.2vw,8.6rem)}
.hero__index{position:absolute;right:calc(var(--gr) + 1.25rem);bottom:clamp(3.2rem,10.5vh,6.8rem);z-index:2;display:grid;justify-items:end;gap:.7rem;margin:0;padding:0;list-style:none;font:500 .7rem/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}
.hero__index li{display:flex;align-items:center;gap:.7rem;transition:color .4s}
.hero__index li::before{content:"";width:0;height:1px;background:var(--accent);transition:width .5s var(--ease-out)}
.hero__index b{font-weight:500;opacity:.7}
.hero__index li.is-active{color:var(--text)}
.hero__index li.is-active::before{width:1.5rem}
.hero__scroll{position:absolute;left:50%;bottom:1.25rem;z-index:2;display:flex;flex-direction:column;align-items:center;gap:.6rem;transform:translateX(-50%);font:500 .62rem/1 var(--font-mono);letter-spacing:.22em;text-transform:uppercase;color:var(--text-3);transition:opacity .5s}
.hero__scroll i{position:relative;width:1px;height:2.2rem;overflow:hidden;background:var(--line-2)}
.hero__scroll i::after{content:"";position:absolute;left:0;top:0;width:1px;height:40%;background:var(--text);transform:translateY(-100%);animation:drip 1.9s var(--ease-io) infinite}
.is-scrolled .hero__scroll{opacity:0}

/* ---------- 01 about ---------- */
.about{padding:clamp(7rem,17vh,12rem) 0 clamp(5rem,10vh,8rem);overflow:clip}
.about__grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(2rem,4.5vw,5rem);align-items:start}
.about__greet,.about__text,.about__hl{margin:0;font-weight:500;font-size:clamp(1.4rem,2.1vw,2.1rem);line-height:1.28;letter-spacing:-.02em}
.about__greet{font-weight:600}
.about__hl{margin-top:.35em;font-weight:600}
html[data-lang="zh"] .about__greet,html[data-lang="zh"] .about__text,html[data-lang="zh"] .about__hl{font-size:clamp(1.25rem,1.85vw,1.8rem);line-height:1.6;letter-spacing:.02em}
.about__text .w{transition:opacity .2s linear}
.portrait{position:relative;isolation:isolate;margin:0 calc(var(--edge) - var(--gr)) 0 0}
.portrait__ascii{width:100%;cursor:crosshair}
/* the reference stands its portrait in front of a big yellow circle; here a dark disc with a slow accent rim */
.portrait__halo{position:absolute;left:50%;top:40%;z-index:-1;width:100%;aspect-ratio:1;border-radius:50%;background:radial-gradient(closest-side,#18181b,#101012 72%,var(--bg));box-shadow:inset 0 0 0 1px var(--line);transform:translate(-50%,calc(-50% + var(--py,0px)));pointer-events:none}
.portrait__halo::after{content:"";position:absolute;inset:0;border-radius:50%;background:conic-gradient(from 300deg,transparent 0 6%,var(--accent) 13%,transparent 22%);-webkit-mask:radial-gradient(closest-side,transparent calc(100% - 1.5px),#000 calc(100% - 1px));mask:radial-gradient(closest-side,transparent calc(100% - 1.5px),#000 calc(100% - 1px));opacity:.7;animation:spin 40s linear infinite}
.portrait__cap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.5rem 1rem;margin-top:1rem;padding-top:.85rem;border-top:1px solid var(--line);font:500 .66rem/1.4 var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-3)}
.portrait__hint{color:var(--text-2)}
.spec{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin:clamp(3.5rem,8vh,6rem) 0 0;border-top:1px solid var(--line)}
.spec>div{padding:1.15rem 1.5rem 1.25rem 0;border-bottom:1px solid var(--line)}
.spec dt{margin-bottom:.6rem;font:500 .66rem/1 var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--text-3)}
.spec dd{margin:0;font-size:.95rem;line-height:1.55;color:var(--text-2)}
.now{margin:clamp(2.5rem,6vh,4rem) 0 0;padding-top:1.4rem;border-top:1px solid var(--line)}
.now__head{display:flex;justify-content:space-between;gap:1rem;margin:0 0 1.1rem;font:500 .66rem/1 var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--text-3)}
.now__list{display:grid;gap:.75rem;margin:0;padding:0;list-style:none}
.now__list li{position:relative;max-width:52em;padding-left:1.4rem;font-size:.98rem;line-height:1.55;color:var(--text-2)}
.now__list li::before{content:"";position:absolute;left:0;top:.6em;width:.5rem;height:.5rem;border-radius:50%;background:var(--accent)}

/* ---------- 02 fields: big hover rows + data ticker ---------- */
.fields{padding:clamp(6rem,14vh,10rem) 0 0}
.rows{margin:clamp(3rem,8vh,5rem) 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}
.row,.tl{position:relative;isolation:isolate;border-bottom:1px solid var(--line)}
.row::before,.tl::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--bg-3);transform:scaleX(0);transform-origin:left;transition:transform .6s var(--ease-out)}
.row:hover::before,.tl:hover::before{transform:none}
.row__in{display:flex;align-items:baseline;justify-content:space-between;gap:2rem;padding:clamp(1.1rem,2.6vh,1.7rem) calc(var(--gr) + 1.25rem) clamp(1.1rem,2.6vh,1.7rem) var(--gl)}
.row__name{font-weight:600;font-size:clamp(1.7rem,3.7vw,3.4rem);line-height:1.1;letter-spacing:-.03em;transition:transform .6s var(--ease-out)}
html[data-lang="zh"] .row__name{letter-spacing:.01em}
.row:hover .row__name{transform:translateX(.3em)}
.row__meta{flex:none;font:500 .72rem/1.3 var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);text-align:right;transition:color .3s}
.row:hover .row__meta{color:var(--accent)}
.ticker{overflow:hidden;padding:1.15rem 0;border-bottom:1px solid var(--line);-webkit-mask:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.ticker__track{display:flex;width:max-content;animation:tick 52s linear infinite}
.ticker__track span{display:inline-flex;align-items:center;gap:.8rem;padding-right:2.6rem;font:500 .74rem/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);white-space:nowrap}
.ticker__track span::before{content:"";width:6px;height:6px;background:var(--accent)}

/* ---------- 03 history ---------- */
.history{isolation:isolate;margin-top:clamp(4rem,10vh,7rem);padding:clamp(9rem,20vh,14rem) 0 clamp(8rem,16vh,12rem)}
.history__bg{position:absolute;inset:0;z-index:-1;background:var(--bg-2);clip-path:polygon(0 6vw,100% 0,100% calc(100% - 5vw),0 100%)}
.history__bg::before{content:"";position:absolute;inset:0;background:var(--t-2);clip-path:polygon(0 6vw,64% 2.2vw,0 12vw)}
.timeline{margin:clamp(3rem,8vh,5rem) 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}
.tl__in{display:grid;grid-template-columns:6.5rem minmax(0,1fr) auto;align-items:baseline;column-gap:clamp(1rem,2.5vw,2.5rem);padding:clamp(1.1rem,2.8vh,1.8rem) calc(var(--gr) + 1.25rem) clamp(1.1rem,2.8vh,1.8rem) var(--gl)}
.tl__year{font:600 1rem/1 var(--font-mono);color:var(--text-2);transition:color .3s}
.tl__year.is-tbd{font-weight:500;color:var(--text-3)}
.tl:hover .tl__year{color:var(--accent)}
.tl__role{margin:0;font-weight:600;font-size:clamp(1.45rem,2.9vw,2.7rem);line-height:1.1;letter-spacing:-.028em}
html[data-lang="zh"] .tl__role{line-height:1.3;letter-spacing:.01em}
.tl__org{margin:.55rem 0 0;font:500 .75rem/1.5 var(--font-mono);letter-spacing:.02em;color:var(--text-3)}
.tl__tag{padding:.45rem .55rem;border:1px solid var(--line-2);font:500 .64rem/1 var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--text-3);white-space:nowrap}

/* ---------- 04 work: diamond mosaic ---------- */
.work{padding:clamp(4rem,10vh,7rem) 0 0}
.work__head{position:relative;z-index:2;margin-bottom:clamp(2.5rem,6vh,4rem)}
.work__actions{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem 1.75rem}
.hint{margin-top:clamp(2.5rem,6vh,4rem);font:500 .68rem/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}
.mosaic{--S:clamp(160px,18.5vw,290px);--step:calc(var(--S) * .70711);position:relative;height:calc(var(--step) * 5);overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.mosaic__field{position:absolute;inset:0;will-change:transform}
.tile{--S1:calc(var(--S) + 1.5px);position:absolute;left:50%;top:50%;width:var(--S1);height:var(--S1);margin:calc(var(--S1) / -2) 0 0 calc(var(--S1) / -2);background:var(--tone);box-shadow:inset 0 0 0 .5px rgba(255,255,255,.04);transform:translate(calc(var(--x) * var(--step)),calc(var(--y) * var(--step))) rotate(45deg);transition:filter .4s,background-color .5s}
.tone-0{--tone:var(--t-0)}
.tone-1{--tone:var(--t-1)}
.tone-2{--tone:var(--t-2)}
.tone-3{--tone:var(--t-3)}
.tone-a2{--tone:var(--t-a2)}
.tone-a1{--tone:var(--t-a1)}
.tile__in{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.55rem;color:var(--text);text-align:center;transform:rotate(-45deg);pointer-events:none}
.on-acc .tile__in{color:var(--accent-ink)}
.tile__no{font:500 .6rem/1 var(--font-mono);letter-spacing:.16em;opacity:.8}
.tile__code{font:600 clamp(.95rem,1.45vw,1.45rem)/1 var(--font-mono);letter-spacing:.06em;white-space:nowrap}
.tile__cat{max-width:10em;font:500 .6rem/1.3 var(--font-mono);letter-spacing:.12em;text-transform:uppercase;opacity:.8}
.tile.is-proj{cursor:pointer}
.tile.is-proj::after{content:"";position:absolute;inset:14px;border:1px solid currentColor;color:var(--text);opacity:0;transition:opacity .35s,inset .5s var(--ease-out)}
.tile.is-proj.on-acc::after{color:var(--accent-ink)}
.tile.is-proj:hover,.tile.is-proj:focus-visible{z-index:2;filter:brightness(1.3);outline:none}
.tile.is-proj.on-acc:hover,.tile.is-proj.on-acc:focus-visible{filter:brightness(.9)}
.tile.is-proj:hover::after,.tile.is-proj:focus-visible::after{inset:8px;opacity:.55}

/* ---------- 05 quotes (pinned) ---------- */
.quotes{height:250vh}
.quotes__sticky{position:sticky;top:0;display:flex;align-items:center;height:100vh;height:100svh}
.quotes__sticky .content{width:100%}
.quotes__stage{position:relative;min-height:clamp(15rem,40vh,21rem)}
.q{position:absolute;left:0;right:0;top:0;max-width:24em;margin:0;opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease-out),transform .9s var(--ease-out);pointer-events:none}
.q.is-active{opacity:1;transform:none;pointer-events:auto}
.q__mark{display:block;height:.55em;font:800 clamp(4rem,8vw,7rem)/1 var(--font-sans);color:var(--accent)}
.q__text{margin:0;font-weight:400;font-size:clamp(1.45rem,2.5vw,2.4rem);line-height:1.3;letter-spacing:-.015em;color:var(--text-2)}
html[data-lang="zh"] .q__text{line-height:1.6;letter-spacing:.01em}
.q__who{margin-top:1.6rem;font:500 .74rem/1.5 var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-3)}
.quotes__count{margin:2.5rem 0 0;font:500 .74rem/1 var(--font-mono);letter-spacing:.16em;color:var(--text-3)}
.quotes__count #q-i{color:var(--text)}

/* ---------- 06 contact ---------- */
.contact{position:relative;padding:clamp(7rem,16vh,11rem) 0 2rem;border-top:1px solid var(--line)}
.contact__big{margin:0 0 clamp(3rem,8vh,5rem)}
.contact__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2rem;padding-top:1.5rem;border-top:1px solid var(--line)}
.contact__link{display:inline-block;margin-right:1.25rem;padding-bottom:.2rem;border-bottom:1px solid var(--line-2);font-size:clamp(1.05rem,1.35vw,1.3rem);color:var(--text);transition:color .3s,border-color .3s}
.contact__link:hover{color:var(--accent);border-color:var(--accent)}
.contact__clock{margin:0;font:500 clamp(1.05rem,1.35vw,1.3rem)/1.2 var(--font-mono);color:var(--text)}
.contact__tz{display:block;margin-top:.45rem;font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3)}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;margin-top:clamp(4rem,12vh,8rem);padding-top:1.25rem;border-top:1px solid var(--line);font:500 .68rem/1 var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--text-3)}
.foot a:hover{color:var(--text)}

/* ---------- project overlay ---------- */
.overlay{position:fixed;inset:0;z-index:90;overflow-y:auto;overscroll-behavior:contain;background:var(--bg);clip-path:inset(100% 0 0 0);visibility:hidden;transition:clip-path .85s var(--ease-io),visibility 0s linear .85s}
.overlay.is-open{clip-path:inset(0 0 0 0);visibility:visible;transition:clip-path .85s var(--ease-io),visibility 0s}
.ov__ghost{position:absolute;left:var(--gl);top:52vh;font:600 clamp(6rem,22vw,24rem)/.8 var(--font-mono);letter-spacing:-.04em;white-space:nowrap;color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.07);pointer-events:none}
.ov__top{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:clamp(1.25rem,4vh,2.25rem) var(--edge);background:var(--bg)}
.ov__top::after{content:"";position:absolute;left:0;right:0;top:100%;height:1.75rem;background:linear-gradient(var(--bg),transparent);pointer-events:none}
.ov__count{margin:0}
.ov__nav{display:flex;gap:.5rem}
.ov__btn{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem .95rem;border:1px solid var(--line-2);font:500 .7rem/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text);transition:background .3s,color .3s,border-color .3s}
.ov__btn:hover{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.ov__body{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(2rem,5vw,5rem);align-items:start;padding:clamp(1.5rem,5vh,3.5rem) var(--gr) 6rem var(--gl)}
.ov__title{margin:0 0 2rem;font-weight:700;font-size:clamp(2rem,3.6vw,3.6rem);line-height:1.08;letter-spacing:-.035em;text-wrap:balance}
html[data-lang="zh"] .ov__title{line-height:1.3;letter-spacing:.01em}
.ov__meta{display:grid;grid-template-columns:auto 1fr;gap:.7rem 1.5rem;margin:0 0 2rem;padding:1.2rem 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ov__meta dt{font:500 .66rem/1.7 var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--text-3)}
.ov__meta dd{margin:0;font-size:.95rem;color:var(--text-2)}
.ov__desc{margin:0;max-width:34em;font-size:clamp(1.02rem,1.2vw,1.15rem);line-height:1.75;color:var(--text-2)}
.ov__tags{display:flex;flex-wrap:wrap;gap:.5rem;margin:2rem 0 0;padding:0;list-style:none}
.ov__tags li{padding:.45rem .6rem;border:1px solid var(--line-2);font:500 .66rem/1 var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-2)}
.ov__media{position:relative;display:grid;place-items:center;aspect-ratio:4/3;border:1px dashed var(--line-2);background:repeating-linear-gradient(135deg,transparent 0 11px,rgba(255,255,255,.02) 11px 12px)}
.ov__ph{display:grid;gap:.45rem;margin:0;text-align:center;font:500 .7rem/1.4 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}
.ov__ph small{font-size:.62rem;letter-spacing:.1em;opacity:.8}
.ov__fig{display:none;margin:0;width:100%}
.ov__link{margin-top:1.6rem}
.ov__media.has-img{aspect-ratio:auto;place-items:stretch;padding:14px;border-style:solid;background:none}
.ov__media.has-img .ov__ph{display:none}
.ov__media.has-img .ov__fig{display:block}
.ov__img{display:block;width:100%;height:auto;background:#f2f3f5}
.ov__cap{margin-top:.8rem;font:500 .64rem/1.5 var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-3)}
html[data-lang="zh"] .ov__cap{letter-spacing:.04em}

/* ---------- cursor (fine pointers only) ---------- */
.cursor,.cursor-label{display:none}
.has-cursor .cursor{display:block;position:fixed;left:0;top:0;z-index:120;pointer-events:none;mix-blend-mode:difference;transition:opacity .3s}
.cursor i{position:fixed;left:0;top:0;will-change:transform}
.cursor b{display:block;border-radius:50%;transform:translate(-50%,-50%);transition:width .35s var(--ease-out),height .35s var(--ease-out),background-color .3s}
.cursor__dot b{width:6px;height:6px;background:#fff}
.cursor__ring b{width:34px;height:34px;border:1px solid rgba(255,255,255,.55)}
.cursor.is-hover .cursor__ring b{width:58px;height:58px;background:rgba(255,255,255,.08)}
.cursor.is-hidden{opacity:0}
.has-cursor .cursor-label{display:block;position:fixed;left:0;top:0;z-index:121;padding:.5rem .65rem;background:var(--text);color:var(--bg);font:500 .68rem/1 var(--font-mono);letter-spacing:.06em;white-space:nowrap;pointer-events:none;opacity:0;transition:opacity .25s;will-change:transform}
.cursor-label.is-on{opacity:1}
.has-cursor,.has-cursor *{cursor:none!important}

/* ---------- prototype theme switcher ---------- */
.tweaks{position:fixed;left:50%;top:1rem;z-index:95;display:flex;align-items:center;gap:.2rem;padding:.3rem;transform:translateX(-50%);background:rgba(20,20,23,.78);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--line-2);border-radius:999px;font:500 .64rem/1 var(--font-mono);letter-spacing:.12em;text-transform:uppercase}
.tweaks__label{padding:0 .55rem 0 .7rem;color:var(--text-3)}
.tweaks button{display:inline-flex;align-items:center;gap:.4rem;padding:.5rem .7rem;border-radius:999px;color:var(--text-2);transition:background .25s,color .25s}
.tweaks button::before{content:"";width:.55rem;height:.55rem;border-radius:50%;background:var(--sw);box-shadow:inset 0 0 0 1px rgba(255,255,255,.25)}
.tweaks button[aria-pressed="true"]{background:var(--text);color:var(--bg)}
@media (max-width:439px){.tweaks__label{display:none}.tweaks button{padding:.5rem .5rem;gap:.3rem}}

/* ---------- reveal on scroll ---------- */
.js [data-in]{opacity:0;transform:translateY(22px);transition:opacity 1s var(--ease-out),transform 1s var(--ease-out)}
.js [data-in].is-in{opacity:1;transform:none}

@keyframes blink{50%{opacity:0}}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(74,222,128,.55)}70%,100%{box-shadow:0 0 0 7px rgba(74,222,128,0)}}
@keyframes drip{to{transform:translateY(250%)}} /* transform, not top: no layout per frame */
@keyframes tick{to{transform:translateX(-50%)}}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .spec{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  :root{--gl:1.25rem;--gr:1.25rem;--edge:1.25rem;--top:1.1rem}
  .gridlines,.rail,.brand__tag,.brand__hello,.hero__index,.hero__rules{display:none}
  .chrome{height:3.6rem;mix-blend-mode:normal;background:linear-gradient(var(--bg) 55%,transparent)}
  .brand{max-width:none}
  .brand__name{font-size:1.05rem}
  .mnav__links a{font-size:13vw}
  .mnav__foot{grid-template-columns:1fr}
  .hero{height:220vh}
  .display{font-size:12vw}
  html[data-lang="zh"] .hero__title,html[data-lang="zh"] .display{font-size:13vw}
  .about__grid{grid-template-columns:1fr}
  .portrait{max-width:30rem;margin:0}
  .spec{grid-template-columns:1fr}
  .row__in{flex-direction:column;align-items:flex-start;gap:.45rem}
  .row__meta{text-align:left}
  .tl__in{grid-template-columns:1fr;row-gap:.5rem}
  .tl__tag{justify-self:start}
  .mosaic{height:auto;overflow:visible;padding:0 var(--gr) 0 var(--gl);border:0}
  .mosaic__field{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.6rem;transform:none!important}
  .tile{position:relative;left:auto;top:auto;order:var(--o,99);width:auto;height:auto;margin:0;aspect-ratio:1;transform:none}
  .tile:not(.is-proj){display:none}
  .tile__in{padding:.75rem;transform:none}
  .tile.is-proj::after{inset:8px}
  .quotes{height:220vh}
  .contact__grid{grid-template-columns:1fr}
  .ov__body{grid-template-columns:1fr}
  .ov__btn [data-i18n="ov.prev"],.ov__btn [data-i18n="ov.next"]{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap} /* hidden, still the button's name */
  .tweaks{top:auto;bottom:.75rem}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;transition-delay:0s!important}
  .js [data-in]{opacity:1;transform:none}
}