:root {
  --ink: #0b0d0c;
  --ink-soft: #121513;
  --paper: #f0eee6;
  --muted: #aaa9a2;
  --line: rgba(240, 238, 230, 0.16);
  --line-strong: rgba(240, 238, 230, 0.34);
  --signal: #ff6945;
  --cyan: #8adce1;
  --max: 1180px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; background: var(--ink); }

body {
  margin: 0;
  background:
    radial-gradient(circle at 74% 10%, rgba(138, 220, 225, 0.06), transparent 24rem),
    radial-gradient(circle at 12% 52%, rgba(255, 105, 69, 0.035), transparent 28rem),
    var(--ink);
  color: var(--paper);
  font-family: "Space Grotesk", "Noto Sans SC", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }

::selection { color: var(--ink); background: var(--signal); }

.lang-en { display: none !important; }
body[data-lang="en"] .lang-zh { display: none !important; }
body[data-lang="en"] .lang-en { display: initial !important; }

.skip-link {
  position: fixed;
  z-index: 100;
  left: 1rem;
  top: -5rem;
  padding: 0.8rem 1rem;
  color: var(--ink);
  background: var(--paper);
  transition: top 160ms ease;
}
.skip-link:focus { top: 1rem; }

.noise {
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  opacity: 0.12;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

main { padding-right: 138px; }
.hero, .section { max-width: var(--max); margin: 0 auto; padding-inline: 3rem; }

.site-header {
  height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  font-size: 0.9rem;
}
.brand__dot { width: 0.5rem; height: 0.5rem; background: var(--signal); border-radius: 50%; box-shadow: 0 0 0 5px rgba(255,105,69,.1); }

.site-nav { display: flex; align-items: center; gap: 1.6rem; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em; }
.site-nav a { color: var(--muted); transition: color 150ms ease; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--paper); }
.lang-toggle { border: 1px solid var(--line-strong); padding: 0.62rem 0.82rem; color: var(--paper); background: transparent; cursor: pointer; }
.lang-toggle:hover, .lang-toggle:focus-visible { background: var(--paper); color: var(--ink); }

.hero { min-height: 100svh; padding-bottom: 7rem; }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(260px, .55fr); gap: 3.2rem; align-items: center; min-height: 590px; padding-top: 2rem; }
.hero__kicker { display: flex; gap: .8rem; align-items: center; font-size: .66rem; letter-spacing: .18em; color: var(--muted); }
.hero__kicker span:nth-child(2) { color: var(--signal); font-size: 1rem; }
.hero h1 { margin: 1.2rem 0 1.7rem; font-family: "Cormorant Garamond", Georgia, serif; line-height: 1.03; font-weight: 500; letter-spacing: -.055em; }
.hero__hello { display: block; font-size: clamp(3.4rem, 8vw, 6.2rem); }
.hero h1 em { display: block; font-size: clamp(5.4rem, 13vw, 10.5rem); font-weight: 500; color: var(--paper); }
.hero__coords { font: 500 .68rem/1.4 "Space Grotesk", sans-serif; letter-spacing: .24em; color: var(--muted); }
.hero__work-link { display: inline-flex; align-items: center; gap: .7rem; margin-top: 2.2rem; padding-bottom: .25rem; border-bottom: 1px solid var(--signal); color: var(--signal); font-size: .69rem; font-weight: 700; letter-spacing: .16em; }
.hero__work-link i { font-style: normal; transition: transform 180ms ease; }
.hero__work-link:hover i { transform: translateY(4px); }

.portrait-card { margin: 0; transform: rotate(2.5deg); }
.portrait-card__visual {
  position: relative;
  aspect-ratio: .92;
  overflow: hidden;
  border: 1px solid rgba(11,13,12,.2);
  background:
    linear-gradient(rgba(11,13,12,.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11,13,12,.12) 1px, transparent 1px),
    linear-gradient(135deg, #cfd3ca, #7d8784);
  background-size: 22px 22px, 22px 22px, 100% 100%;
  color: var(--ink);
}
.portrait-card__visual::before { content: ""; position: absolute; inset: 8%; border: 1px solid rgba(11,13,12,.36); }
.portrait-card__visual::after { content: "GGBoy / ID-025"; position: absolute; top: 4%; left: 5%; font-size: .58rem; letter-spacing: .2em; }
.portrait-card__orbit { position: absolute; width: 70%; aspect-ratio: 1; border: 1px solid rgba(11,13,12,.35); border-radius: 50%; left: 15%; top: 15%; box-shadow: 0 0 0 28px rgba(240,238,230,.08), 0 0 0 56px rgba(240,238,230,.04); }
.portrait-card__axis { position: absolute; top: 50%; left: 50%; height: 1px; width: 38%; transform-origin: left center; background: var(--ink); }
.portrait-card__axis::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-radius: 50%; background: var(--signal); }
.portrait-card__axis--x { transform: rotate(9deg); }
.portrait-card__axis--y { transform: rotate(129deg); }
.portrait-card__axis--z { transform: rotate(245deg); }
.portrait-card__letter { position: absolute; inset: 0; display: grid; place-items: center; font: 600 10rem/.8 "Cormorant Garamond", serif; color: rgba(11,13,12,.82); }
.portrait-card__scan { position: absolute; right: 5%; bottom: 5%; font-size: .55rem; letter-spacing: .15em; writing-mode: vertical-rl; }
.portrait-card figcaption { display: flex; flex-direction: column; gap: .2rem; padding: 1rem .3rem 0; }
.portrait-card figcaption strong { font-size: .95rem; }
.portrait-card figcaption span { font-size: .62rem; letter-spacing: .17em; color: var(--muted); }

.hero__statement { display: grid; grid-template-columns: .7fr 1.3fr; gap: 3rem; border-block: 1px solid var(--line); padding: 2rem 0; }
.hero__statement p { margin: 0; }
.hero__positioning { max-width: 680px; }
.meta-label { margin-bottom: .55rem !important; color: var(--signal); font-size: .62rem; font-weight: 700; letter-spacing: .19em; }
.hero__statement > div > p:last-child { font-size: clamp(.94rem, 1.4vw, 1.08rem); color: #d1d0ca; }

.motto { margin: 3rem 0 0; padding: 0; display: flex; align-items: baseline; justify-content: space-between; gap: 2rem; }
.motto__index { color: var(--muted); font-size: .62rem; letter-spacing: .17em; }
.motto p { margin: 0; font: 500 clamp(2.1rem, 5vw, 4.2rem)/1 "Cormorant Garamond", "Noto Sans SC", serif; }
.motto em { color: var(--signal); font-weight: 500; }

.section { padding-top: 8rem; padding-bottom: 4rem; border-top: 1px solid var(--line); }
.section__heading { display: grid; grid-template-columns: 5rem 1fr; gap: 2rem; align-items: start; }
.section__heading > span { color: var(--signal); font: 500 .68rem/1 "Space Grotesk", sans-serif; letter-spacing: .16em; padding-top: 1rem; }
.section__eyebrow { margin: 0 0 .55rem; color: var(--muted); font-size: .63rem; font-weight: 600; letter-spacing: .23em; }
.section h2 { margin: 0; font-size: clamp(2.7rem, 6vw, 5.2rem); line-height: .95; letter-spacing: -.045em; }
.section__note { max-width: 600px; margin: 2rem 0 3.2rem 7rem; color: var(--muted); }

.about__content { margin: 3.5rem 0 0 7rem; display: grid; grid-template-columns: 1.25fr .75fr; gap: 2rem 5rem; }
.about__lead { grid-column: 1/-1; max-width: 920px; margin: 0; font-size: clamp(1.65rem, 3.3vw, 3rem); line-height: 1.38; letter-spacing: -.025em; }
.about__body p { margin: 0 0 1rem; color: #cbc9c2; }
.about__facts { margin: 0; }
.about__facts div { display: grid; grid-template-columns: 4rem 1fr; padding: .82rem 0; border-top: 1px solid var(--line); }
.about__facts dt { color: var(--signal); font-size: .61rem; letter-spacing: .13em; }
.about__facts dd { margin: 0; color: var(--muted); font-size: .88rem; }

.timeline__intro { margin: 2.4rem 0 3.2rem 7rem; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem; align-items: end; }
.timeline__intro p { max-width: 690px; margin: 0; color: var(--muted); }
.timeline__intro > span { color: var(--signal); font-size: .62rem; letter-spacing: .16em; }
.timeline__list { list-style: none; margin: 0 0 0 7rem; padding: 0; border-top: 1px solid var(--line); }
.timeline__item { display: grid; grid-template-columns: 64px 120px minmax(210px, .8fr) 1.2fr; gap: 1.4rem; align-items: center; min-height: 142px; border-bottom: 1px solid var(--line); }
.timeline__marker { position: relative; align-self: stretch; display: grid; place-items: center; border-right: 1px solid var(--line); }
.timeline__marker span { z-index: 1; display: grid; place-items: center; width: 30px; aspect-ratio: 1; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--muted); background: var(--ink); font-size: .58rem; }
.timeline__marker i { position: absolute; top: 0; bottom: 0; right: -1px; width: 1px; background: var(--line); }
.timeline__item--active .timeline__marker span { color: var(--ink); border-color: var(--signal); background: var(--signal); box-shadow: 0 0 0 8px rgba(255,105,69,.08); }
.timeline__time { color: var(--signal); font-size: .63rem; letter-spacing: .13em; }
.timeline__place { display: flex; flex-direction: column; gap: .25rem; }
.timeline__place strong { font-size: 1.08rem; }
.timeline__place small { color: var(--muted); font-size: .56rem; letter-spacing: .13em; }
.timeline__item > p { margin: 0; max-width: 440px; color: var(--muted); font-size: .86rem; }

.research__grid { margin-left: 7rem; display: grid; grid-template-columns: repeat(6, 1fr); }
.research-card { position: relative; min-height: 220px; padding: 1.2rem; border: 1px solid var(--line); margin: -1px 0 0 -1px; transition: background 200ms ease, color 200ms ease, transform 200ms ease; }
.research-card:nth-child(1), .research-card:nth-child(2) { grid-column: span 3; }
.research-card:nth-child(n+3) { grid-column: span 2; }
.research-card > span { color: var(--signal); font-size: .65rem; }
.research-card h3 { margin: 4rem 0 .25rem; font-size: 1.45rem; }
.research-card p { margin: 0; color: var(--muted); font-size: .76rem; letter-spacing: .04em; }
.research-card i { position: absolute; right: 1.2rem; top: 1rem; font-style: normal; color: var(--muted); }
.research-card:hover { z-index: 2; color: var(--ink); background: var(--paper); transform: translateY(-5px); }
.research-card:hover p, .research-card:hover i { color: #575b57; }

.skills__columns { margin-left: 7rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.skill-panel { padding: 1.6rem; border: 1px solid var(--line); background: rgba(240,238,230,.02); }
.skill-panel--accent { border-color: rgba(138,220,225,.35); }
.skill-panel__head { display: flex; justify-content: space-between; gap: 1rem; padding-bottom: 1.4rem; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .62rem; letter-spacing: .12em; }
.skill-panel__head b { color: var(--cyan); }
.skill-panel ul { list-style: none; padding: 0; margin: 0; }
.skill-panel li { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; align-items: baseline; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.skill-panel li:last-child { border-bottom: 0; }
.skill-panel li span { font-weight: 600; }
.skill-panel li em { font-style: normal; color: var(--muted); font-size: .78rem; text-align: right; }
.soft-skills { margin: 1.2rem 0 0 7rem; display: grid; grid-template-columns: 200px 1fr; border: 1px solid var(--line); }
.soft-skills__label { padding: 1.2rem; font-size: .62rem; color: var(--signal); letter-spacing: .15em; border-right: 1px solid var(--line); }
.soft-skills__list { display: flex; flex-wrap: wrap; gap: .6rem; padding: .85rem; }
.soft-skills__list span { padding: .28rem .55rem; border: 1px solid var(--line); color: var(--muted); font-size: .72rem; }

.works__intro { margin: 2.2rem 0 3rem 7rem; display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: end; }
.works__intro p { max-width: 720px; margin: 0; color: var(--muted); }
.works__intro > span { color: var(--signal); font-size: .62rem; letter-spacing: .16em; }
.works__grid { margin-left: 7rem; display: grid; grid-template-columns: 1fr 1fr; gap: 2.2rem; }
.work-card { position: relative; border: 1px solid var(--line); background: rgba(240,238,230,.018); transition: border-color 180ms ease, transform 180ms ease; }
.work-card:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.work-card--wide { grid-column: 1/-1; }
.work-card--wide .work-card__main { display: grid; grid-template-columns: 1.35fr .65fr; align-items: stretch; }
.work-card__visual { position: relative; aspect-ratio: 1.2; overflow: hidden; border-bottom: 1px solid var(--line); background: #303632; }
.work-card__visual::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(240,238,230,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(240,238,230,.07) 1px, transparent 1px); background-size: 28px 28px; }
.work-card__visual i { position: absolute; left: 1rem; bottom: 1rem; z-index: 2; font-style: normal; color: rgba(240,238,230,.72); font-size: .57rem; letter-spacing: .16em; }
.work-card__meta { min-height: 210px; padding: 1.35rem; display: flex; flex-direction: column; align-items: flex-start; }
.work-card--wide .work-card__visual { border: 0; border-right: 1px solid var(--line); }
.work-card--wide .work-card__meta { padding: 2rem; min-height: 100%; justify-content: flex-end; }
.work-card__meta > span { color: var(--signal); font-size: .61rem; letter-spacing: .14em; }
.work-card__meta h3 { margin: .45rem 0 .25rem; font-size: 1.45rem; }
.work-card__meta p { margin: 0; color: var(--muted); font-size: .83rem; }
.work-card__meta em { margin-top: auto; padding-top: 1.8rem; color: var(--paper); font-style: normal; font-size: .64rem; font-weight: 700; letter-spacing: .13em; }
.work-card__detail { border-top: 1px solid var(--line); background: rgba(138,220,225,.035); }
.work-card__detail summary { display: flex; justify-content: space-between; align-items: center; padding: .85rem 1.2rem; color: var(--muted); background: rgba(11,13,12,.65); cursor: pointer; font-size: .62rem; font-weight: 700; letter-spacing: .14em; list-style: none; }
.work-card__detail summary::-webkit-details-marker { display: none; }
.work-card__detail summary:hover, .work-card__detail summary:focus-visible { color: var(--paper); background: rgba(240,238,230,.035); }
.work-card__detail summary i { font-style: normal; color: var(--signal); font-size: 1rem; transition: transform 180ms ease; }
.work-card__detail[open] summary i { transform: rotate(45deg); }
.work-card__detail dl { margin: 0; padding: 1.1rem 1.2rem 1.25rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.work-card__detail dt { color: var(--signal); font-size: .56rem; letter-spacing: .14em; }
.work-card__detail dd { margin: .28rem 0 0; color: var(--muted); font-size: .72rem; }

.visual--robot .joint { position: absolute; z-index: 3; width: 42px; aspect-ratio: 1; border: 7px solid var(--paper); border-radius: 50%; background: var(--signal); }
.visual--robot .joint--a { left: 17%; bottom: 18%; }
.visual--robot .joint--b { left: 45%; top: 37%; }
.visual--robot .joint--c { right: 16%; top: 19%; }
.visual--robot .arm { position: absolute; z-index: 2; height: 18px; transform-origin: left center; background: var(--paper); }
.visual--robot .arm--a { width: 39%; left: 23%; bottom: 27%; transform: rotate(-36deg); }
.visual--robot .arm--b { width: 36%; left: 51%; top: 43%; transform: rotate(-25deg); }

.visual--mechanism { display: grid; place-items: center; }
.visual--mechanism > span { position: absolute; width: 52%; height: 13%; border: 1px solid var(--paper); background: rgba(240,238,230,.08); transform: rotate(-12deg); }
.visual--mechanism > span:nth-child(1) { translate: 0 -110px; }
.visual--mechanism > span:nth-child(2) { translate: 0 -55px; }
.visual--mechanism > span:nth-child(3) { translate: 0 0; background: var(--signal); border-color: var(--signal); }
.visual--mechanism > span:nth-child(4) { translate: 0 55px; }
.visual--mechanism > span:nth-child(5) { translate: 0 110px; }

.visual--prototype { aspect-ratio: 2.2; display: grid; place-items: center; background: #c9cec6; }
.visual--prototype::before { background-image: linear-gradient(rgba(11,13,12,.1) 1px, transparent 1px), linear-gradient(90deg, rgba(11,13,12,.1) 1px, transparent 1px); }
.visual--prototype i { color: rgba(11,13,12,.7); }
.cube { position: relative; width: 140px; aspect-ratio: 1; border: 4px solid var(--ink); transform: rotate(30deg) skew(-5deg); }
.cube::before, .cube::after { content: ""; position: absolute; inset: 16%; border: 2px solid var(--ink); }
.cube::after { inset: 33%; background: var(--signal); }
.cube b { position: absolute; left: 50%; top: 50%; width: 210%; height: 2px; background: var(--ink); transform-origin: left; }
.cube b:nth-child(1) { transform: rotate(0); }.cube b:nth-child(2) { transform: rotate(120deg); }.cube b:nth-child(3) { transform: rotate(240deg); }

.interests__layout { margin: 3.2rem 0 0 7rem; display: grid; grid-template-columns: .72fr 1.28fr; gap: 4rem; }
.interests__intro { display: flex; flex-direction: column; justify-content: space-between; min-height: 520px; }
.interests__intro > p { margin: 0; max-width: 380px; color: #cbc9c2; font-size: 1.08rem; }
.interests__dial { position: relative; width: min(280px, 100%); aspect-ratio: 1; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: repeating-radial-gradient(circle, transparent 0 24px, rgba(240,238,230,.055) 25px 26px); }
.interests__dial::before, .interests__dial::after { content: ""; position: absolute; background: var(--line-strong); }
.interests__dial::before { width: 110%; height: 1px; }.interests__dial::after { width: 1px; height: 110%; }
.interests__dial span { font: 500 6rem/.8 "Cormorant Garamond", serif; }
.interests__dial b { position: absolute; bottom: 15%; font-size: .55rem; letter-spacing: .18em; color: var(--muted); }
.interests__dial i { position: absolute; width: 48%; height: 2px; left: 50%; top: 50%; transform: rotate(-34deg); transform-origin: left; background: var(--signal); }
.interests__dial i::after { content: ""; position: absolute; right: -4px; top: -3px; width: 8px; aspect-ratio: 1; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 7px rgba(255,105,69,.1); }
.interests__list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.interests__list li { display: grid; grid-template-columns: 70px minmax(110px, .55fr) 1.45fr; gap: 1.2rem; align-items: center; min-height: 104px; border-bottom: 1px solid var(--line); transition: padding 180ms ease, background 180ms ease; }
.interests__list li:hover { padding-inline: .8rem; background: rgba(240,238,230,.035); }
.interests__list li > span { color: var(--signal); font-size: .6rem; letter-spacing: .12em; }
.interests__list strong { font-size: 1.15rem; }
.interests__list p { margin: 0; color: var(--muted); font-size: .82rem; }

.destination { padding-bottom: 1.4rem; }
.destination__route { display: flex; align-items: center; justify-content: space-between; gap: .8rem; padding: 1.2rem 0; border-block: 1px solid var(--line); }
.destination__route div { display: flex; flex-direction: column; }
.destination__route b { color: var(--signal); font-size: .58rem; letter-spacing: .17em; }
.destination__route span { font-size: .75rem; color: var(--muted); }
.destination__route i { flex: 1; height: 1px; position: relative; background: var(--line-strong); }
.destination__route i::after { content: ""; position: absolute; right: 0; top: -3px; border-left: 7px solid var(--line-strong); border-block: 3px solid transparent; }
.destination__content { padding: 8rem 0 10rem 7rem; }
.destination__content h2 { max-width: 870px; margin-bottom: 2rem; font: 500 clamp(4rem, 9vw, 8rem)/.88 "Cormorant Garamond", "Noto Sans SC", serif; }
.destination__content > p:not(.section__eyebrow) { max-width: 500px; color: var(--muted); }
.contact-pending { display: inline-flex; align-items: center; gap: .55rem; margin-top: 1.7rem; padding: .7rem 1rem; border: 1px solid var(--line); color: var(--muted); font-size: .63rem; letter-spacing: .15em; }
.contact-pending i { width: .5rem; aspect-ratio: 1; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 5px rgba(255,105,69,.12); }
footer { display: flex; justify-content: space-between; gap: 1rem; padding-top: 1.4rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .68rem; }
footer a:hover { color: var(--paper); }

.trajectory { position: fixed; z-index: 10; right: 2rem; top: 50%; width: 96px; height: min(62vh, 520px); transform: translateY(-50%); padding: .85rem; border: 1px solid var(--line); background: rgba(11,13,12,.72); backdrop-filter: blur(10px); }
.trajectory__eyebrow { color: var(--signal); font-size: .51rem; letter-spacing: .15em; }
.trajectory__percent { display: block; margin-top: .38rem; font: 600 1rem/1 "Space Grotesk", sans-serif; }
.trajectory__station { margin-top: .38rem; min-height: 2.6em; color: var(--muted); font-size: .48rem; line-height: 1.3; letter-spacing: .12em; }
.trajectory__track { position: absolute; left: 1rem; top: 30%; bottom: 17%; width: 1px; background: var(--line-strong); }
.trajectory__fill { position: absolute; left: -1px; top: 0; width: 3px; height: 0%; background: var(--signal); box-shadow: 0 0 10px rgba(255,105,69,.45); }
.trajectory__fill::after { content: ""; position: absolute; left: -3px; bottom: 0; width: 9px; height: 2px; background: var(--signal); }
.trajectory__mark { position: absolute; left: -3px; width: 7px; height: 1px; background: var(--line-strong); }
.trajectory__mark--one { top: 25%; }.trajectory__mark--two { top: 50%; }.trajectory__mark--three { top: 75%; }
.trajectory__coord { position: absolute; left: 1.8rem; bottom: 15%; color: var(--muted); font-size: .47rem; line-height: 1.5; }
.trajectory__end { position: absolute; left: .85rem; bottom: .75rem; color: var(--paper); font-size: .46rem; letter-spacing: .14em; }

.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 700ms ease, transform 700ms cubic-bezier(.2,.7,.2,1); }
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }

:focus-visible { outline: 2px solid var(--signal); outline-offset: 4px; }


/* Wide-screen experience and trajectory layouts */
@media (min-width: 901px) {
  .resume, .timeline { padding-top: 5rem; padding-bottom: 4rem; }
  .resume .section__note { margin-top: 1.2rem; margin-bottom: 1.5rem; }
  .resume .skills__columns { display: grid; grid-template-columns: 1fr; gap: 1rem; }
  .resume .skill-panel { padding: 1.1rem 1.4rem; }
  .resume .skill-panel__head { padding-bottom: .8rem; }
  .resume .skill-panel ul { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .resume .skill-panel li { display: flex; flex-direction: column; align-items: flex-start; gap: .4rem; padding: .85rem 1rem .25rem; border-bottom: 0; border-left: 1px solid var(--line); }
  .resume .skill-panel li:first-child { border-left: 0; padding-left: 0; }
  .resume .skill-panel li em { text-align: left; }
  .timeline__intro { margin-top: 1.4rem; margin-bottom: 2rem; }
  .timeline__list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 0; }
  .timeline__item { display: flex; flex-direction: column; align-items: flex-start; gap: .6rem; min-height: 0; padding: 0 1rem 1rem; border-bottom: 0; border-left: 1px solid var(--line); }
  .timeline__item:first-child { padding-left: 0; border-left: 0; }
  .timeline__marker { width: 100%; height: 36px; display: flex; align-items: center; border-right: 0; }
  .timeline__marker i { top: 50%; bottom: auto; left: 0; right: 0; width: auto; height: 1px; }
  .timeline__marker span { flex: 0 0 30px; }
  .timeline__place { min-height: 3.3rem; }
}


/* Alternating milestones on a shared horizontal line */
@media (min-width: 901px) {
  .resume .skill-panel ul { position: relative; grid-template-columns: repeat(3, minmax(0, 1fr)); grid-template-rows: 1fr; min-height: 190px; }
  .resume .skill-panel ul::before { content: ""; position: absolute; top: 50%; left: 0; right: 0; border-top: 1px solid var(--line-strong); }
  .resume .skill-panel li { position: relative; justify-content: flex-end; align-self: stretch; padding: 0 1rem calc(95px + 1.2rem); border-left: 0; }
  .resume .skill-panel li:first-child { padding-left: 1rem; }
  .resume .skill-panel li:nth-child(even) { justify-content: flex-start; padding: calc(95px + 1.2rem) 1rem 0; }
  .resume .skill-panel li::before { content: ""; position: absolute; top: calc(50% - 5px); left: 1rem; width: 10px; height: 10px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 5px var(--ink); }
  .timeline__list { position: relative; align-items: stretch; }
  .timeline__list::before { content: ""; position: absolute; top: 50%; left: 0; right: 0; border-top: 1px solid var(--line-strong); }
  .timeline__item, .timeline__item:first-child { position: relative; display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(150px, 1fr) 36px minmax(150px, 1fr); align-items: stretch; gap: 0; padding: 0 1rem; border-left: 0; }
  .timeline__marker { grid-row: 2; grid-column: 1; z-index: 1; height: 36px; }
  .timeline__marker i { display: none; }
  .timeline__content { grid-row: 1; grid-column: 1; align-self: end; padding: 0 0 1rem; }
  .timeline__item:nth-child(even) .timeline__content { grid-row: 3; align-self: start; padding: 1rem 0 0; }
  .timeline__place { min-height: 0; margin: .55rem 0; }
  .timeline__content p { margin: 0; color: var(--muted); font-size: .86rem; }
}
@media (max-width: 900px) {
  .timeline__item { grid-template-columns: 48px 1fr; gap: 0 1rem; padding: 1.3rem 0; }
  .timeline__marker { grid-row: 1; }
  .timeline__content { grid-column: 2; }
  .timeline__content p { margin: 0; color: var(--muted); font-size: .86rem; }
}

@media (max-width: 1040px) {
  main { padding-right: 0; }
  .trajectory { display: none; }
  .hero, .section { padding-inline: 2rem; }
}

@media (max-width: 760px) {
  body { font-size: 15px; }
  .hero, .section { padding-inline: 1.2rem; }
  .site-header { height: auto; padding: 1.1rem 0; align-items: flex-start; }
  .site-nav { gap: .65rem; flex-wrap: wrap; justify-content: flex-end; }
  .site-nav > a { display: none; }
  .hero__grid { grid-template-columns: 1fr; min-height: auto; padding: 5rem 0 3rem; gap: 3rem; }
  .hero h1 { margin-top: 1rem; }
  .hero__hello { font-size: clamp(3.2rem, 18vw, 5rem); }
  .hero h1 em { font-size: clamp(5rem, 24vw, 8rem); }
  .portrait-card { max-width: 340px; margin-left: auto; transform: rotate(1.5deg); }
  .hero__statement { grid-template-columns: 1fr; gap: 1.7rem; }
  .motto { align-items: flex-start; flex-direction: column; }
  .section { padding-top: 6rem; }
  .section__heading { grid-template-columns: 2.6rem 1fr; gap: .8rem; }
  .section__note, .about__content, .timeline__intro, .timeline__list, .research__grid, .skills__columns, .soft-skills, .works__intro, .works__grid, .interests__layout { margin-left: 0; }
  .about__content { grid-template-columns: 1fr; }
  .about__lead { grid-column: auto; }
  .timeline__intro { grid-template-columns: 1fr; }
  .timeline__item { grid-template-columns: 48px 1fr; gap: 0 1rem; padding: 1.3rem 0; }
  .timeline__marker { grid-row: 1 / 4; }
  .timeline__time { grid-column: 2; }
  .timeline__place { grid-column: 2; padding: .35rem 0 .8rem; }
  .timeline__item > p { grid-column: 2; }
  .research__grid { grid-template-columns: 1fr; }
  .research-card:nth-child(n) { grid-column: auto; min-height: 170px; }
  .research-card h3 { margin-top: 2.6rem; }
  .skills__columns { grid-template-columns: 1fr; }
  .soft-skills { grid-template-columns: 1fr; }
  .soft-skills__label { border-right: 0; border-bottom: 1px solid var(--line); }
  .works__intro { grid-template-columns: 1fr; }
  .works__grid { grid-template-columns: 1fr; }
  .work-card--wide { grid-column: auto; }
  .work-card--wide .work-card__main { display: block; }
  .work-card--wide .work-card__visual { border-right: 0; border-bottom: 1px solid var(--line); }
  .work-card--wide .work-card__meta { min-height: 210px; padding: 1.35rem; }
  .work-card__detail dl { grid-template-columns: 1fr; }
  .interests__layout { grid-template-columns: 1fr; gap: 3rem; }
  .interests__intro { min-height: auto; gap: 2.4rem; }
  .interests__dial { width: 220px; }
  .interests__list li { grid-template-columns: 56px 1fr; padding: 1rem 0; }
  .interests__list p { grid-column: 2; }
  .destination__route { display: grid; grid-template-columns: 1fr 1fr; }
  .destination__route i { display: none; }
  .destination__content { padding: 6rem 0; }
  .destination__content h2 { font-size: clamp(3.5rem, 17vw, 5.8rem); }
  footer { flex-direction: column; }
}


.life-timeline, .resume-honors { margin: 0 0 1.5rem 7rem; }
.life-heading { margin: 0 0 1rem; color: var(--cyan); font-size: .7rem; letter-spacing: .12em; font-weight: 700; }
.life-row { list-style: none; margin: 0 0 1.4rem; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); position: relative; }
.life-row::before { content: ""; position: absolute; top: 50%; left: 0; right: 0; border-top: 1px solid var(--line-strong); }
.life-row li { position: relative; display: grid; grid-template-rows: minmax(200px, 1fr) 24px minmax(200px, 1fr); padding: 0 1rem; }
.life-row li::before { content: ""; grid-row: 2; align-self: center; width: 10px; height: 10px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 5px var(--ink); z-index: 1; }
.life-entry { grid-row: 1; align-self: end; padding-bottom: 1rem; }
.life-row li:nth-child(even) .life-entry { grid-row: 3; align-self: start; padding: 1rem 0 0; }
.life-entry strong { color: var(--paper); font-size: .95rem; }
.life-entry p { margin: .45rem 0 0; color: var(--muted); font-size: .82rem; line-height: 1.65; }
.resume-honors ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .7rem; }
.resume-honors li { border: 1px solid var(--line); padding: .65rem .9rem; color: var(--muted); font-size: .82rem; }
@media (min-width: 901px) {
  .resume { padding-top: 3rem; padding-bottom: 3rem; }
  .resume .section h2, .resume h2 { font-size: clamp(2.6rem, 4vw, 4rem); }
  .resume .section__note { margin: .7rem 0 .8rem 7rem; }
  .life-timeline { margin-bottom: 1rem; }
  .life-heading { margin-bottom: .4rem; }
  .life-row { margin-bottom: .8rem; }
  .life-row li { grid-template-rows: minmax(115px, 1fr) 20px minmax(115px, 1fr); }
  .life-entry { padding-bottom: .45rem; }
  .life-row li:nth-child(even) .life-entry { padding-top: .45rem; }
  .life-entry strong { font-size: .86rem; }
  .life-entry p { margin-top: .25rem; font-size: .76rem; line-height: 1.42; }
  .life-row:first-of-type::after { content: ""; position: absolute; top: 50%; right: 0; height: calc(100% + .8rem); border-right: 1px solid var(--line-strong); }
  .life-row:last-of-type li:nth-child(1) { grid-column: 5; grid-row: 1; }
  .life-row:last-of-type li:nth-child(2) { grid-column: 4; grid-row: 1; }
  .life-row:last-of-type li:nth-child(3) { grid-column: 3; grid-row: 1; }
  .life-row:last-of-type li:nth-child(4) { grid-column: 2; grid-row: 1; }
  .life-row:last-of-type li:nth-child(5) { grid-column: 1; grid-row: 1; }
}
@media (max-width: 900px) {
  .life-row { display: block; margin-bottom: 0; border-left: 1px solid var(--line-strong); }
  .life-row::before { display: none; }
  .life-row li { display: block; padding: 0 0 1.4rem 1.5rem; }
  .life-row li::before { position: absolute; left: -5px; top: .45rem; }
  .life-entry, .life-row li:nth-child(even) .life-entry { padding: 0; }
}
@media (max-width: 760px) { .life-timeline, .resume-honors { margin-left: 0; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* A switchable palette inspired by Reze's violet hair and green eyes. */
html[data-theme="reze"] { --ink: #100d17; --ink-soft: #1a1523; --paper: #f3edf5; --muted: #c0b5c8; --line: rgba(222,205,231,.18); --line-strong: rgba(222,205,231,.38); --signal: #c39be7; --cyan: #a8c9b8; }
.theme-toggle { display: inline-flex; align-items: center; gap: .48rem; padding: .62rem .82rem; border: 1px solid var(--line-strong); color: var(--paper); background: transparent; cursor: pointer; white-space: nowrap; font-size: .68rem; font-weight: 600; }
.theme-toggle:hover, .theme-toggle:focus-visible { border-color: var(--signal); color: var(--signal); }
.theme-toggle__dot { width: .55rem; height: .55rem; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 3px color-mix(in srgb, var(--signal) 18%, transparent); }
html[data-theme="reze"] body { background: radial-gradient(circle at 75% 9%, rgba(156,111,195,.18), transparent 30rem), radial-gradient(circle at 12% 52%, rgba(121,73,151,.10), transparent 30rem), var(--ink); }

html[data-theme="reze"] .portrait-card__visual { background: linear-gradient(135deg, #d8c6df, #8b759a); }
html[data-theme="reze"] .work-card__visual { background-color: #352b42; }
html[data-theme="reze"] .visual--prototype { background-color: #b9a9c5; }
html[data-theme="reze"] .skill-panel--accent { border-color: rgba(168,201,184,.38); }
html[data-theme="reze"] .work-card__detail { background: rgba(174,137,203,.06); }
html[data-theme="reze"] .work-card__detail summary, html[data-theme="reze"] .trajectory { background: rgba(16,13,23,.84); }
html[data-theme="reze"] .trajectory__fill { box-shadow: 0 0 12px rgba(195,155,231,.6); }
html[data-theme="reze"] .timeline__item--active .timeline__marker span { box-shadow: 0 0 0 8px rgba(195,155,231,.13); }
@media (max-width: 760px) { .theme-toggle { padding: .55rem .65rem; } }

.portrait-card__visual--avatar { padding: 0; background: var(--ink-soft); }
.portrait-card__visual--avatar::before, .portrait-card__visual--avatar::after { display: none; }
.portrait-card__visual--avatar img { display: block; width: 100%; height: 100%; object-fit: cover; }

.portrait-card figcaption { padding-top: 1.35rem; }
.portrait-card figcaption ruby { ruby-position: over; }
.portrait-card figcaption rt { color: var(--muted); font-size: .58rem; font-weight: 500; letter-spacing: 0; }