/* ============================================================
   QUICK THEME EDIT — change these values to recolor the site.
   ============================================================ */
:root {
  --paper: #f7f4ea;
  --paper-deep: #eee9dc;
  --spring: #c8ddbf;
  --spring-light: #dcebd5;
  --sky: #cadff2;
  --blush: #f2cdd6;
  --ink: #24352f;
  --deep-green: #315c4d;
  --muted: #65716c;
  --white: #fffdf7;
  --line: rgba(36, 53, 47, .22);
  --shadow: rgba(49, 69, 61, .18);
  --max: 1380px;
  --radius: 18px;
  --display: "Smiley Sans", "Noto Sans SC Local", "Microsoft YaHei", sans-serif;
  --body: "Noto Sans SC Local", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "IBM Plex Mono Local", "SFMono-Regular", Consolas, monospace;
  --ease: cubic-bezier(.22, .72, .2, 1);
}

@font-face { font-family: "Smiley Sans"; src: url("assets/fonts/SmileySans-Oblique.woff2") format("woff2"); font-display: swap; }
@font-face { font-family: "IBM Plex Mono Local"; src: url("assets/fonts/IBMPlexMono-Regular.woff2") format("woff2"); font-display: swap; }
@font-face { font-family: "Noto Sans SC Local"; src: url("assets/fonts/NotoSansSC-subset.woff2") format("woff2"); font-display: swap; font-weight: 100 900; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body { margin: 0; overflow-x: hidden; color: var(--ink); background: var(--paper); font: 400 16px/1.7 var(--body); }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 100; opacity: .15; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.78' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.10'/%3E%3C/svg%3E"); mix-blend-mode: multiply; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
img { display: block; max-width: 100%; }
.shell { width: min(calc(100% - 64px), var(--max)); margin-inline: auto; }
.zh, .en { display: inline; }
.en { display: none !important; }
body[data-lang="en"] .zh { display: none !important; }
body[data-lang="en"] .en { display: inline !important; }
p.en, body[data-lang="en"] p.en { display: none !important; }
body[data-lang="en"] p.en { display: block !important; }
.skip-link { position: fixed; left: 18px; top: -80px; z-index: 200; padding: 10px 16px; border: 2px solid var(--ink); background: var(--spring); font-weight: 700; }
.skip-link:focus { top: 18px; }
.micro-label { margin: 0; font: 600 10px/1.4 var(--mono); letter-spacing: .14em; text-transform: uppercase; }

/* Header */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 80; height: 72px; padding: 0 max(24px, calc((100vw - var(--max)) / 2)); display: flex; align-items: center; gap: 34px; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--paper) 84%, transparent); backdrop-filter: blur(18px); }
.wordmark { margin-right: auto; display: flex; align-items: baseline; gap: 12px; }
.wordmark > span { font: 700 22px/1 var(--display); letter-spacing: .02em; }
.wordmark small { color: var(--muted); font: 600 9px/1 var(--mono); letter-spacing: .12em; }
.main-nav { display: flex; gap: 30px; }
.main-nav a { position: relative; font: 600 12px/1 var(--mono); }
.main-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -7px; height: 2px; background: var(--deep-green); transition: right .25s; }
.main-nav a:hover::after, .main-nav a:focus-visible::after { right: 0; }
.header-tools { display: flex; align-items: center; gap: 16px; }
.language-button { padding: 8px 12px; border: 1px solid var(--ink); border-radius: 999px; background: transparent; cursor: pointer; font: 600 10px/1 var(--mono); transition: background .2s; }
.language-button:hover { background: var(--spring); }
.menu-button, .mobile-menu { display: none; }

/* Hero */
.hero { position: relative; padding-top: 150px; min-height: 100vh; }
.hero-heading { max-width: 1040px; }
.hero-heading h1 { max-width: 1050px; margin: 24px 0 22px; font: 500 clamp(52px, 7vw, 104px)/.98 var(--display); letter-spacing: -.035em; }
.hero-summary { max-width: 660px; margin: 0; color: var(--muted); font-size: clamp(15px, 1.3vw, 19px); }
.scribble { position: relative; z-index: 1; white-space: nowrap; }
.scribble::after { content: ""; position: absolute; z-index: -1; left: -4%; right: -4%; bottom: 4%; height: 35%; background: var(--blush); transform: rotate(-2deg); border-radius: 50% 24% 45% 22%; }
.scribble.blue::after { background: var(--sky); transform: rotate(1.5deg); }
.motto-note { position: absolute; right: 1.5%; top: 174px; z-index: 3; width: 300px; padding: 34px 28px 26px; background: var(--spring); border: 1px solid var(--ink); box-shadow: 8px 9px 0 rgba(36,53,47,.12); transform: rotate(4deg); }
.motto-note .tape { position: absolute; top: -14px; left: 50%; width: 95px; height: 28px; background: rgba(255,253,247,.66); transform: translateX(-50%) rotate(-3deg); }
.motto-note b { font: 600 9px/1 var(--mono); letter-spacing: .14em; }
.motto-note p { margin: 16px 0 0; font: 500 25px/1.25 var(--display); }
.motto-note .doodle { position: absolute; right: 15px; bottom: 7px; font-size: 24px; }
.book-intro { margin-top: 100px; padding: 14px 0; display: flex; align-items: center; justify-content: space-between; border-block: 1px solid var(--line); font: 600 10px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.book-intro > div { display: flex; align-items: center; gap: 10px; }
.section-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--deep-green); }
.reset-cards { border: 0; border-bottom: 1px solid var(--ink); padding: 0 0 3px; background: none; cursor: pointer; font: inherit; text-transform: uppercase; }

/* Folding folio and physics cards */
.book-stage { position: relative; height: 720px; margin: 26px 0 130px; overflow: hidden; border: 1px solid var(--ink); border-radius: 3px; background: var(--paper-deep); perspective: 1800px; isolation: isolate; }
.book-stage::after { content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 2; background-image: linear-gradient(rgba(36,53,47,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(36,53,47,.05) 1px, transparent 1px); background-size: 32px 32px; }
.book-cover { position: absolute; z-index: 30; left: 50%; top: 50%; width: 390px; height: 520px; padding: 0; transform: translate(-50%, -50%) rotate(-2deg); border: 2px solid var(--ink); background: var(--spring); box-shadow: -13px 14px 0 var(--ink), 0 28px 70px rgba(36,53,47,.2); cursor: pointer; text-align: left; transition: opacity .45s, transform .8s var(--ease), visibility .45s; }
.book-cover:hover { transform: translate(-50%, -52%) rotate(1deg); }
.book-cover::before { content: ""; position: absolute; inset: 18px; border: 1px solid var(--ink); }
.book-spine { position: absolute; left: 22px; top: 0; bottom: 0; width: 28px; border-inline: 1px solid var(--ink); opacity: .55; }
.cover-top { position: absolute; left: 72px; top: 64px; display: flex; flex-direction: column; }
.cover-top small, .cover-top em { font: 600 10px/1 var(--mono); letter-spacing: .12em; font-style: normal; }
.cover-top b { margin: 17px 0 12px; font: 500 61px/.86 var(--display); letter-spacing: -.04em; }
.cover-name { position: absolute; left: 72px; bottom: 62px; font: 600 12px/1 var(--mono); letter-spacing: .08em; }
.cover-count { position: absolute; right: 38px; bottom: 56px; font: 500 64px/.67 var(--display); text-align: center; }
.cover-count small { font: 600 9px/1 var(--mono); letter-spacing: .08em; }
.cover-open { position: absolute; right: 30px; top: 28px; padding: 8px 11px; border: 1px solid var(--ink); border-radius: 999px; background: var(--paper); font: 600 9px/1 var(--mono); }
.book-stage.is-open .book-cover { opacity: 0; visibility: hidden; transform: translate(-50%, -50%) scale(.72) rotateY(-55deg); }
.fold-panels { position: absolute; inset: 0; display: grid; grid-template-columns: repeat(4, 1fr); transform-style: preserve-3d; }
.fold-panel { position: relative; padding: 18px; border-right: 1px dashed rgba(36,53,47,.45); transform-origin: left center; transform: rotateY(-89deg); opacity: 0; transition: transform .9s var(--ease), opacity .35s; }
.fold-panel span { position: absolute; left: 16px; bottom: 14px; font: 600 9px/1 var(--mono); letter-spacing: .1em; opacity: .55; }
.panel-one { background: var(--spring-light); transition-delay: .08s; }
.panel-two { background: var(--sky); transition-delay: .18s; }
.panel-three { background: var(--blush); transition-delay: .28s; }
.panel-four { background: #eadcc6; transition-delay: .38s; border-right: 0; }
.book-stage.is-open .fold-panel { opacity: 1; transform: rotateY(0); }
.physics-cards { position: absolute; z-index: 10; inset: 0; opacity: 0; transition: opacity .45s .75s; }
.book-stage.is-open .physics-cards { opacity: 1; }
.physics-card { position: absolute; left: 0; top: 0; width: 196px; height: 250px; padding: 9px; overflow: hidden; border: 1px solid var(--ink); background: var(--white); box-shadow: 5px 7px 0 rgba(36,53,47,.16); cursor: grab; touch-action: none; user-select: none; text-align: left; transform-origin: center; will-change: transform; }
.physics-card:active { cursor: grabbing; }
.physics-card:focus-visible { outline: 4px solid var(--deep-green); outline-offset: 4px; }
.physics-card .mini-image { height: 128px; overflow: hidden; border: 1px solid var(--ink); background: var(--paper-deep); pointer-events: none; }
.physics-card img { width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.physics-card[data-color="green"] { background: var(--spring-light); }
.physics-card[data-color="blue"] { background: #e2eff8; }
.physics-card[data-color="pink"] { background: #f9e2e7; }
.physics-card .mini-meta { display: flex; justify-content: space-between; margin: 9px 0 5px; font: 600 8px/1 var(--mono); letter-spacing: .08em; pointer-events: none; }
.physics-card strong { display: block; font: 500 21px/.95 var(--display); pointer-events: none; }
.physics-card small { display: block; margin-top: 6px; color: var(--muted); font-size: 10px; line-height: 1.3; pointer-events: none; }
.physics-card .mini-tags { position: absolute; left: 9px; right: 9px; bottom: 8px; display: flex; gap: 4px; pointer-events: none; }
.physics-card .mini-tags span { padding: 3px 5px; border: 1px solid rgba(36,53,47,.35); font: 600 7px/1 var(--mono); }
.drag-hint { position: absolute; z-index: 20; right: 18px; bottom: 11px; margin: 0; padding: 6px 8px; background: color-mix(in srgb, var(--paper) 78%, transparent); font: 600 8px/1 var(--mono); letter-spacing: .08em; opacity: 0; transition: opacity .4s 1s; }
.book-stage.is-open .drag-hint { opacity: .75; }

/* Portfolio */
.portfolio-section { padding: 120px 0 150px; border-top: 1px solid var(--line); }
.section-header { position: relative; display: grid; grid-template-columns: 1fr 420px; gap: 50px; align-items: end; margin-bottom: 70px; }
.section-header .micro-label { grid-column: 1 / -1; }
.section-header h2, .resume-callout h2, .contact-section h2 { margin: 0; font: 500 clamp(44px, 6vw, 82px)/.98 var(--display); letter-spacing: -.03em; }
.section-header > p:last-child { margin: 0; color: var(--muted); }
.project-group { margin-top: 88px; }
.group-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; padding: 13px 0; border-block: 1px solid var(--line); }
.group-heading h3 { margin: 0; font: 500 clamp(26px, 3vw, 40px)/1 var(--display); }
.group-heading > .group-meta { font: 600 9px/1 var(--mono); letter-spacing: .1em; }
.group-heading h3 > span { font: inherit !important; font-size: inherit !important; line-height: inherit !important; letter-spacing: inherit !important; }
.portfolio-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 18px; }
.portfolio-section #portfolio-groups .project-group .group-heading > h3 { font-size: clamp(24px, 2.8vw, 42px) !important; line-height: 1 !important; letter-spacing: -.02em !important; }
.portfolio-grid.professional { grid-template-columns: repeat(3, 1fr); }
.portfolio-card { position: relative; min-width: 0; overflow: hidden; border: 1px solid var(--ink); background: var(--white); transition: transform .3s var(--ease), box-shadow .3s; }
.portfolio-card:hover { transform: translateY(-5px) rotate(-.25deg); box-shadow: 8px 9px 0 var(--shadow); }
.portfolio-card .card-image { position: relative; aspect-ratio: 16/9; overflow: hidden; border-bottom: 1px solid var(--ink); background: var(--paper-deep); }
.portfolio-grid.professional .portfolio-card .card-image { aspect-ratio: 4/3; }
.portfolio-card .card-image img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.82); transition: transform .6s var(--ease), filter .3s; }
.portfolio-card:hover img { transform: scale(1.035); filter: saturate(1); }
.portfolio-card .card-number { position: absolute; left: 14px; top: 14px; width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--ink); border-radius: 50%; background: var(--paper); font: 600 9px/1 var(--mono); }
.card-content { min-height: 190px; padding: 24px; display: flex; flex-direction: column; }
.portfolio-grid.professional .card-content { min-height: 210px; padding: 18px; }
.card-overline { display: flex; justify-content: space-between; gap: 12px; font: 600 8px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.card-content h4 { margin: 16px 0 7px; font: 500 clamp(26px, 3vw, 42px)/1 var(--display); }
.portfolio-grid.professional h4 { font-size: 28px; }
.card-content > p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.tag-list { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 20px; }
.tag-list span { padding: 5px 7px; border: 1px solid var(--line); border-radius: 999px; font: 600 8px/1 var(--mono); }
.view-case { margin-top: auto; padding-top: 22px; display: flex; justify-content: space-between; border-bottom: 1px solid var(--ink); font: 600 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }

/* About */
.about-section { padding: 130px 0 150px; border-top: 1px solid var(--line); }
.section-header.compact { grid-template-columns: 1fr; }
.about-section #about-title { font-size: clamp(21px, 4.4vw, 62px); }
.about-section #about-title .zh { white-space: nowrap; }
.about-lead { display: grid; grid-template-columns: 390px 1fr; gap: clamp(60px, 10vw, 160px); align-items: center; margin: 70px 0 120px; }
.photo-card { margin: 0; padding: 16px 16px 28px; border: 1px solid var(--ink); background: var(--white); box-shadow: 12px 14px 0 var(--spring); transform: rotate(-3deg); }
.photo-placeholder { aspect-ratio: 4/5; display: grid; place-content: center; text-align: center; background: repeating-linear-gradient(45deg, var(--sky), var(--sky) 12px, #dceaf5 12px, #dceaf5 24px); border: 1px solid var(--ink); }
.photo-placeholder span { font: 500 62px/.8 var(--display); }
.photo-placeholder small { margin-top: 26px; font: 600 9px/1 var(--mono); }
.photo-card figcaption { margin-top: 20px; font: 500 20px/1.25 var(--display); }
.about-intro p { max-width: 740px; margin: 0 0 34px; font-size: clamp(20px, 2.2vw, 30px); line-height: 1.55; }
.text-link { display: inline-flex; gap: 30px; border-bottom: 1px solid var(--ink); font: 600 10px/1.6 var(--mono); text-transform: uppercase; }
.about-board { display: grid; grid-template-columns: 1.1fr .9fr; border: 1px solid var(--ink); }
.about-panel { position: relative; min-height: 640px; padding: 60px 44px 44px; }
.about-panel + .about-panel { border-left: 1px solid var(--ink); }
.journey-panel { background: var(--spring-light); }
.curiosity-panel { background: var(--sky); }
.panel-tab { position: absolute; top: -1px; left: 42px; padding: 9px 14px; border: 1px solid var(--ink); border-top: 0; background: var(--paper); font: 600 9px/1 var(--mono); letter-spacing: .1em; }
.about-panel h3, .team-title h3 { margin: 12px 0 38px; font: 500 clamp(31px, 3.5vw, 49px)/1.05 var(--display); }
.journey-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.journey-list li { padding: 18px 0; display: grid; grid-template-columns: 44px 1fr; gap: 12px; border-bottom: 1px solid var(--line); }
.journey-list time { font: 600 9px/1.6 var(--mono); }
.journey-list b { font-size: 15px; }
.journey-list p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.interest-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.interest-cloud span { padding: 10px 13px; border: 1px solid var(--ink); background: var(--paper); font: 600 10px/1 var(--mono); transform: rotate(var(--r, 0deg)); }
.interest-cloud span:nth-child(2n) { --r: 2deg; background: var(--blush); }
.interest-cloud span:nth-child(3n) { --r: -2deg; background: var(--spring); }
.margin-note { position: absolute; left: 44px; right: 44px; bottom: 46px; margin: 0; padding: 24px; border: 1px dashed var(--ink); font: 500 24px/1.2 var(--display); transform: rotate(1.5deg); }
.team-section { display: grid; grid-template-columns: .74fr 1.26fr; gap: 70px; margin-top: 120px; }
.trait-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--ink); }
.trait-grid article { min-height: 180px; padding: 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trait-grid article:nth-child(2n) { border-right: 0; }
.trait-grid b { font: 500 25px/1 var(--display); }
.trait-grid p { margin: 16px 0 0; color: var(--muted); font-size: 12px; }

/* Resume callout, contact, footer */
.resume-callout { margin-bottom: 130px; padding: 70px; display: flex; justify-content: space-between; align-items: end; border: 1px solid var(--ink); background: var(--blush); box-shadow: 12px 12px 0 var(--ink); }
.resume-callout .micro-label { margin-bottom: 22px; }
.round-link { width: 150px; height: 150px; flex: 0 0 auto; padding: 26px; display: flex; flex-direction: column; justify-content: space-between; border: 1px solid var(--ink); border-radius: 50%; background: var(--paper); font: 600 10px/1.2 var(--mono); text-transform: uppercase; transition: transform .3s, background .3s; }
.round-link:hover { transform: rotate(8deg); background: var(--spring); }
.round-link b { align-self: flex-end; font-size: 24px; }
.contact-section { padding: 130px 0; border-top: 1px solid var(--line); }
.contact-section h2 { max-width: 960px; margin: 28px 0; }
.contact-copy { color: var(--muted); font-size: 17px; }
.contact-list { margin-top: 70px; border-top: 1px solid var(--ink); }
.contact-list a, .contact-list button { width: 100%; padding: 22px 8px; display: grid; grid-template-columns: 120px 1fr 90px; align-items: center; border: 0; border-bottom: 1px solid var(--ink); background: transparent; color: inherit; text-align: left; font: inherit; cursor: pointer; transition: padding .25s, background .25s; }
.contact-list a:hover, .contact-list button:hover { padding-inline: 20px; background: var(--spring-light); }
.contact-list span { font: 600 9px/1 var(--mono); }
.contact-list b { font-weight: 500; }
.contact-list em { justify-self: end; font-style: normal; }
.site-footer { min-height: 94px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); color: var(--muted); font: 600 8px/1 var(--mono); letter-spacing: .1em; }

/* Shared subpage shell */
.subpage-main { padding: 150px 0 100px; }
.back-link { display: inline-flex; gap: 12px; align-items: center; margin-bottom: 60px; border-bottom: 1px solid var(--ink); font: 600 10px/1.6 var(--mono); text-transform: uppercase; }
.subpage-hero { display: grid; grid-template-columns: 1fr 420px; gap: 60px; align-items: end; }
body[data-page="project"] .subpage-hero { grid-template-columns: 1fr; }
.subpage-hero h1 { margin: 22px 0 0; font: 500 clamp(62px, 8vw, 118px)/.88 var(--display); letter-spacing: -.035em; }
.subpage-hero .lead { margin: 0; color: var(--muted); font-size: 18px; }

/* Project case page */
.case-hero-media { position: relative; margin: 70px 0 0; aspect-ratio: 16/8; overflow: hidden; border: 1px solid var(--ink); background: var(--paper-deep); }
.case-hero-media img { width: 100%; height: 100%; object-fit: cover; opacity: 1; transition: opacity .22s ease; }
.case-hero-media img.is-pending { opacity: 0; }
.watermarked-media { position: relative; }
.watermarked-media::after { content: ""; position: absolute; right: 3.5%; bottom: 4%; width: clamp(150px, 28%, 330px); aspect-ratio: 403 / 149; background: url("assets/images/portfolio-watermark.png") center / contain no-repeat; opacity: .72; pointer-events: none; z-index: 2; }
.case-video-link { z-index: 3; }
.case-hero-media .case-number { position: absolute; left: 22px; top: 22px; padding: 9px 11px; border: 1px solid var(--ink); border-radius: 999px; background: var(--paper); font: 600 9px/1 var(--mono); }
.case-video-link { position: absolute; inset: 0; display: grid; place-items: center; color: var(--ink); background: linear-gradient(180deg, transparent 45%, rgba(25,35,31,.16)); cursor: pointer; transition: background .25s; }
.case-video-link[hidden] { display: none; }
.case-video-link:hover { background: linear-gradient(180deg, rgba(247,244,234,.04), rgba(25,35,31,.26)); }
.case-play-icon { width: clamp(48px, 4.7vw, 70px); aspect-ratio: 1; display: grid; place-items: center; border: 2px solid var(--ink); border-radius: 50%; background: rgba(247,244,234,.9); box-shadow: 5px 6px 0 rgba(36,53,47,.22); transition: transform .25s, background .25s; }
.case-play-icon svg { width: 48%; fill: var(--deep-green); }
.case-video-link:hover .case-play-icon { transform: scale(1.06) rotate(-3deg); background: var(--blush); }
.case-video-label { position: absolute; right: 24px; top: 22px; display: grid; gap: 5px; padding: 12px 15px; border: 1px solid var(--ink); background: rgba(247,244,234,.92); text-align: right; }
.case-video-label b { font: 600 12px/1.2 var(--sans); }
.case-video-label small { color: var(--muted); font: 600 8px/1 var(--mono); letter-spacing: .08em; }
.case-video-link.is-pending { cursor: default; }
.case-video-link.is-pending .case-play-icon { opacity: .82; }
.case-meta { display: grid; grid-template-columns: .8fr 1.75fr .65fr 1.2fr; margin-top: 18px; border: 1px solid var(--ink); }
.case-meta div { min-height: 120px; padding: 20px; display: flex; flex-direction: column; align-items: flex-start; border-right: 1px solid var(--ink); }
.case-meta div:last-child { border-right: 0; }
.case-meta span { display: block; margin-bottom: 22px; color: var(--muted); font: 600 8px/1 var(--mono); letter-spacing: .1em; }
.case-meta b { font-size: 14px; font-weight: 600; line-height: 1.6; }
.case-role-meta b,
.case-role-meta p { font: 500 14px/1.65 var(--sans); }
.case-role-meta p { margin: 13px 0 0; color: var(--muted); }
.case-body { margin-top: 78px; }
.case-section { display: grid; grid-template-columns: 280px 1fr; gap: 80px; padding: 70px 0; border-top: 1px solid var(--line); }
.case-section h2 { margin: 0; font: 500 38px/1 var(--display); }
.case-section .case-copy > p { margin: 0; max-width: 760px; font-size: 19px; }
.case-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 0; padding: 0; list-style: none; }
.case-list li { min-height: 150px; padding: 20px; border: 1px solid var(--ink); background: var(--spring-light); font-size: 13px; }
.case-list li:nth-child(2) { background: var(--sky); }
.case-list li:nth-child(3) { background: var(--blush); }
.case-list li::before { content: "0" counter(list-item); display: block; margin-bottom: 32px; font: 600 9px/1 var(--mono); }

/* Rich project case studies ------------------------------------------------ */
.case-thesis-section {
  padding-block: 46px;
}
.case-thesis {
  max-width: 920px !important;
  font: 500 clamp(25px, 2.5vw, 42px)/1.32 var(--display);
  letter-spacing: -.025em;
  color: var(--deep-green);
}
.case-section-wide {
  grid-template-columns: 220px minmax(0, 1fr);
  gap: clamp(36px, 6vw, 100px);
}
.case-steps {
  display: grid;
  gap: 18px;
}
.case-step {
  display: grid;
  grid-template-columns: minmax(190px, .65fr) minmax(0, 1.5fr);
  gap: 34px;
  padding: 28px 0;
  border-top: 1px dashed rgba(36, 53, 47, .5);
}
.case-step:first-child { border-top: 0; padding-top: 0; }
.case-step h3,
.case-interactions h3 {
  margin: 0;
  font: 600 17px/1.35 var(--sans);
  color: var(--deep-green);
}
.case-step p,
.case-interactions p {
  margin: 0;
  font-size: 17px;
  line-height: 1.82;
}
.case-interactions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.case-interactions.count-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.case-interactions article {
  min-height: 270px;
  display: grid;
  grid-template-rows: auto 1fr;
  align-content: start;
  gap: 28px;
  padding: 24px;
  border: 1px solid var(--ink);
  background: var(--spring-light);
}
.case-interactions article:nth-child(2n) { background: var(--sky); }
.case-interactions article:nth-child(3n) { background: var(--blush); }
.case-interactions article > span {
  font: 700 10px/1 var(--mono);
  letter-spacing: .12em;
}
.case-interactions article div { align-self: start; display: grid; gap: 14px; }
.case-interactions h3 { min-height: 2.7em; display: flex; align-items: flex-start; }
.case-interaction-section .case-interaction-media {
  grid-column: 1 / -1;
  width: min(1240px, 100%);
  display: grid;
  gap: 52px;
  margin: 34px auto 0;
}
.interaction-media-group { display: grid; gap: 12px; }
.interaction-media-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.interaction-media-heading h3 { margin: 0; font: 600 20px/1.3 var(--sans); color: var(--deep-green); }
.interaction-media-heading p { margin: 0; max-width: 560px; color: var(--muted); font-size: 14px; }
.interaction-media-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.interaction-media-grid figure { margin: 0; overflow: hidden; border: 1px solid var(--ink); background: rgba(255,255,255,.55); }
.interaction-media-grid figure.is-featured { grid-column: 1 / -1; }
.interaction-media-feature-grid .interaction-media-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.interaction-media-grid img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: var(--paper-deep); }
.interaction-media-grid figure:not(.is-featured) img { aspect-ratio: 16 / 9; }
.interaction-media-grid figcaption { min-height: 62px; padding: 12px 14px; display: flex; align-items: flex-start; border-top: 1px solid var(--ink); color: var(--muted); font-size: 12px; line-height: 1.45; }
.interaction-media-pair .interaction-media-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.interaction-media-pair .interaction-media-grid img { aspect-ratio: 16 / 9; }
.interaction-media-gallery .interaction-media-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.interaction-media-slots .interaction-media-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.interaction-media-slot {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, transparent 49.6%, rgba(49,92,77,.18) 49.8%, rgba(49,92,77,.18) 50.2%, transparent 50.4%),
    linear-gradient(45deg, transparent 49.6%, rgba(49,92,77,.18) 49.8%, rgba(49,92,77,.18) 50.2%, transparent 50.4%),
    var(--spring-light);
}
.interaction-media-slot span { position: absolute; left: 14px; top: 14px; font: 700 8px/1 var(--mono); letter-spacing: .12em; }
.interaction-media-slot b { width: 50px; height: 50px; display: grid; place-items: center; border: 1px solid var(--ink); border-radius: 50%; background: var(--paper); font: 400 26px/1 var(--sans); }
.case-highlights {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.case-highlights li {
  position: relative;
  padding: 21px 24px 21px 58px;
  border: 1px solid rgba(36, 53, 47, .42);
  background: rgba(255,255,255,.48);
  font-size: 17px;
  line-height: 1.65;
}
.case-highlights li::before {
  content: "✦";
  position: absolute;
  left: 23px;
  top: 20px;
  color: #e56f83;
  font-size: 20px;
}
.case-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.case-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--ink);
  background: rgba(255,255,255,.55);
}
.case-figure:first-child:last-child,
.case-figure:nth-child(3):last-child { grid-column: 1 / -1; }
.case-figure img,
.figure-slot {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
}
.case-figure img {
  object-fit: contain;
  object-position: center;
  background: #e9e5da;
}
.figure-slot {
  position: relative;
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, transparent 49.65%, rgba(49,92,77,.25) 49.8%, rgba(49,92,77,.25) 50.2%, transparent 50.35%),
    linear-gradient(45deg, transparent 49.65%, rgba(49,92,77,.25) 49.8%, rgba(49,92,77,.25) 50.2%, transparent 50.35%),
    var(--spring-light);
}
.figure-slot span {
  position: absolute;
  left: 18px;
  top: 17px;
  font: 700 9px/1 var(--mono);
  letter-spacing: .15em;
}
.figure-slot b {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--paper);
  font: 400 28px/1 var(--sans);
}
.case-figure figcaption {
  min-height: 112px;
  display: grid;
  gap: 8px;
  padding: 17px 19px 19px;
  border-top: 1px solid var(--ink);
}
.case-figure figcaption strong { font-size: 15px; }
.case-figure figcaption span { color: var(--muted); font-size: 13px; line-height: 1.55; }
.case-nav { display: grid; grid-template-columns: 1fr 1fr; margin-top: 100px; border: 1px solid var(--ink); }
.case-nav a { min-height: 180px; padding: 28px; display: flex; flex-direction: column; justify-content: space-between; }
.case-nav a[hidden] { display: none; }
.case-nav a + a { border-left: 1px solid var(--ink); text-align: right; background: var(--spring-light); }
.case-nav small { font: 600 9px/1 var(--mono); }
.case-nav b { font: 500 30px/1 var(--display); }
.case-nav.is-single { grid-template-columns: 1fr; }
.case-nav.is-single a + a { border-left: 0; }

.case-appendix { margin-top: 100px; padding-top: 54px; border-top: 1px solid var(--ink); }
.case-appendix[hidden] { display: none; }
.case-appendix-heading { max-width: 760px; margin-bottom: 34px; }
.case-appendix-heading h2 { margin: 12px 0 14px; font: 500 clamp(30px, 4vw, 50px)/1.05 var(--display); white-space: nowrap; }
.case-appendix-heading > p:last-child { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.75; }
.case-appendix-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; align-items: start; }
.case-appendix-grid.is-pages { grid-template-columns: 1fr; gap: 38px; }
.case-appendix-grid.is-slots { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.case-appendix-grid.is-slots img { width: 100%; aspect-ratio: 3/2; object-fit: cover; object-position: center; }
.case-appendix-grid figure { margin: 0; overflow: hidden; border: 1px solid var(--ink); border-radius: 10px 16px 11px 14px; background: #fff; box-shadow: 7px 8px 0 rgba(49,92,77,.09); }
.case-appendix-grid figure.is-featured { grid-column: 1 / -1; }
.case-appendix-grid img { display: block; width: 100%; height: auto; }
.case-appendix-grid.is-gallery figure:not(.is-featured) img { aspect-ratio: 16/9; object-fit: cover; }
.case-appendix-grid figcaption { padding: 14px 17px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.case-appendix-grid .is-placeholder { aspect-ratio: 16/10; display: grid; grid-template-rows: auto 1fr auto; padding: 18px; border-style: dashed; background: linear-gradient(145deg, rgba(202,223,242,.32), rgba(247,244,234,.9) 55%, rgba(242,205,214,.28)); }
.case-appendix-grid .is-placeholder > span { font: 700 9px/1 var(--mono); letter-spacing: .12em; }
.case-appendix-grid .is-placeholder > b { place-self: center; width: 50px; height: 50px; display: grid; place-items: center; border: 1px solid var(--ink); border-radius: 50%; font-size: 25px; }
.case-appendix-grid .is-placeholder > small { color: var(--muted); font: 600 8px/1 var(--mono); letter-spacing: .12em; }

/* Resume page */
.resume-layout { display: grid; grid-template-columns: 340px 1fr; gap: 80px; margin-top: 80px; }
.resume-sidebar { position: sticky; top: 100px; align-self: start; }
.resume-photo { aspect-ratio: 4/5; display: grid; place-content: center; overflow: hidden; border: 1px solid var(--ink); background: linear-gradient(160deg, var(--sky), var(--paper) 58%, var(--blush)); text-align: center; font: 500 48px/.9 var(--display); }
.resume-photo img { width: 100%; height: 100%; object-fit: contain; object-position: center bottom; filter: drop-shadow(0 10px 12px rgba(49,92,77,.12)); }
.resume-sidebar .tag-list { margin: 24px 0 0; }
.resume-downloads { margin-top: 30px; display: grid; gap: 8px; }
.resume-downloads a, .resume-downloads span { padding: 12px 14px; display: flex; justify-content: space-between; border: 1px solid var(--ink); font: 600 9px/1 var(--mono); }
.resume-downloads .disabled { opacity: .55; background: var(--paper-deep); }
.resume-content { border-top: 1px solid var(--ink); }
.resume-block { padding: 44px 0; display: grid; grid-template-columns: 150px 1fr; gap: 30px; border-bottom: 1px solid var(--line); }
.resume-block > h2 { margin: 0; font: 500 28px/1 var(--display); }
.resume-entry + .resume-entry { margin-top: 34px; }
.resume-entry header { display: flex; justify-content: space-between; gap: 20px; }
.resume-entry h3 { margin: 0; font-size: 17px; }
.resume-entry time { color: var(--muted); font: 600 9px/1.5 var(--mono); white-space: nowrap; }
.resume-entry p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.resume-skills { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.resume-skills h3 { margin: 0 0 8px; font: 500 21px/1 var(--display); }
.resume-skills p { margin: 0; color: var(--muted); font-size: 12px; }
.resume-methods { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.resume-methods article { min-height: 170px; padding: 20px; border: 1px solid var(--ink); border-radius: 16px 10px 15px 12px; background: rgba(255,253,247,.72); }
.resume-methods article:nth-child(2) { background: rgba(202,223,242,.42); transform: rotate(.35deg); }
.resume-methods article:nth-child(3) { background: rgba(242,205,214,.36); transform: rotate(-.3deg); }
.resume-methods article:nth-child(4) { background: rgba(200,221,191,.42); }
.resume-methods b { color: var(--green); font: 700 10px/1 var(--mono); }
.resume-methods h3 { margin: 25px 0 8px; font: 500 25px/1 var(--display); }
.resume-methods p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.resume-formal-note > div { padding: 22px 24px; border-radius: 14px; background: var(--blush); }
.resume-formal-note p { margin: 0; }

@media (max-width: 1100px) {
  .motto-note { position: relative; right: auto; top: auto; margin: 58px 0 0 auto; }
  .book-intro { margin-top: 60px; }
  .section-header, .subpage-hero { grid-template-columns: 1fr; }
  .portfolio-grid.professional { grid-template-columns: repeat(2, 1fr); }
  .about-lead { grid-template-columns: 320px 1fr; gap: 70px; }
  .team-section { grid-template-columns: 1fr; }
  .case-section { grid-template-columns: 210px 1fr; gap: 40px; }
}

@media (max-width: 820px) {
  .shell { width: min(calc(100% - 36px), var(--max)); }
  .site-header { height: 64px; padding-inline: 18px; }
  .main-nav { display: none; }
  .menu-button { width: 34px; height: 34px; padding: 0; border: 0; background: none; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 7px; }
  .menu-button span { width: 22px; height: 1px; background: var(--ink); transition: transform .2s; }
  .menu-button[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .mobile-menu { position: absolute; left: 0; right: 0; top: 64px; padding: 24px; flex-direction: column; gap: 18px; border-bottom: 1px solid var(--ink); background: var(--paper); }
  .mobile-menu.is-open { display: flex; }
  .hero { padding-top: 120px; }
  .hero-heading h1 { font-size: clamp(48px, 12vw, 80px); }
  .book-stage { height: 570px; overflow-x: auto; overflow-y: hidden; scroll-snap-type: x mandatory; }
  .book-cover { width: min(330px, calc(100% - 48px)); height: 450px; }
  .cover-top b { font-size: 50px; }

  .book-stage.is-open { background: linear-gradient(90deg, var(--spring-light), var(--sky) 38%, var(--blush) 68%, #eadcc6); }
  .physics-cards { position: relative; inset: auto; height: 100%; padding: 58px 24px 34px; display: flex; gap: 16px; align-items: center; opacity: 1; }
  .physics-card { position: relative; left: auto; top: auto; width: min(72vw, 270px); height: 360px; flex: 0 0 min(72vw, 270px); transform: none !important; scroll-snap-align: center; }
  .physics-card .mini-image { height: 205px; }
  .physics-card strong { font-size: 28px; }
  .physics-card small { font-size: 11px; }
  .drag-hint { display: none; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .about-lead { grid-template-columns: 1fr; }
  .photo-card { width: min(360px, 90%); margin-inline: auto; }
  .about-board { grid-template-columns: 1fr; }
  .about-panel + .about-panel { border-left: 0; border-top: 1px solid var(--ink); }
  .team-section { margin-top: 80px; }
  .resume-callout { padding: 46px 32px; }
  .round-link { width: 120px; height: 120px; }
  .case-meta { grid-template-columns: repeat(2, 1fr); }
  .case-meta div:nth-child(2) { border-right: 0; }
  .case-meta div:nth-child(-n+2) { border-bottom: 1px solid var(--ink); }
  .case-section { grid-template-columns: 1fr; }
  .case-intro { grid-template-columns: 1fr; gap: 18px; }
  .case-intro .micro-label { margin: 0; }
  .case-list { grid-template-columns: 1fr; }
  .resume-layout { grid-template-columns: 1fr; }
  .resume-sidebar { position: static; }
  .resume-photo { max-width: 320px; }
}

@media (max-width: 560px) {
  .wordmark small { display: none; }
  .language-button { padding: 7px 9px; }
  .hero-heading h1 { font-size: 47px; }
  .motto-note { width: 88%; margin-right: 5%; }
  .book-intro { align-items: flex-start; gap: 16px; }
  .book-stage { height: 520px; margin-bottom: 90px; }
  .book-cover { height: 405px; }
  .cover-top { left: 60px; top: 56px; }
  .cover-top b { font-size: 44px; }
  .cover-name { left: 60px; }
  .cover-count { font-size: 52px; }
  .portfolio-section, .about-section, .contact-section { padding-block: 90px; }
  .section-header { margin-bottom: 48px; }
  .section-header h2, .resume-callout h2, .contact-section h2 { font-size: 46px; }
  .portfolio-grid.professional { grid-template-columns: 1fr; }
  .group-heading { align-items: flex-start; flex-direction: column; }
  .about-lead { margin-bottom: 80px; }
  .about-panel { min-height: 600px; padding-inline: 24px; }
  .panel-tab { left: 24px; }
  .margin-note { left: 24px; right: 24px; }
  .trait-grid { grid-template-columns: 1fr; }
  .trait-grid article, .trait-grid article:nth-child(2n) { border-right: 0; }
  .resume-callout { margin-bottom: 90px; flex-direction: column; align-items: flex-start; gap: 42px; box-shadow: 7px 7px 0 var(--ink); }
  .contact-list a, .contact-list button { grid-template-columns: 72px 1fr 78px; gap: 10px; }
  .contact-list b { font-size: 12px; }
  .site-footer { padding-block: 24px; flex-direction: column; align-items: flex-start; }
  .subpage-main { padding-top: 120px; }
  .subpage-hero h1 { font-size: 60px; }
  .case-hero-media { aspect-ratio: 4/3; }
  .case-meta { grid-template-columns: 1fr; }
  .case-meta div, .case-meta div:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--ink); }
  .case-meta div:last-child { border-bottom: 0; }
  .case-nav { grid-template-columns: 1fr; }
  .case-nav a + a { border-left: 0; border-top: 1px solid var(--ink); }
  .resume-block { grid-template-columns: 1fr; }
  .resume-skills { grid-template-columns: 1fr; }
  .resume-methods { grid-template-columns: 1fr; }
  .case-appendix-grid { grid-template-columns: 1fr; }
  .case-appendix-grid.is-slots { grid-template-columns: 1fr; }
  .case-appendix-grid figure.is-featured { grid-column: auto; }
  .case-appendix-heading h2 { white-space: normal; }
}

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




}

/* Global hand-drawn language v3 */
.site-header {
  border-bottom: 2px solid rgba(36, 53, 47, .24);
  box-shadow: 0 3px 0 rgba(202, 223, 242, .28);
}

.language-button,
.menu-button {
  border: 2px solid var(--ink);
  border-radius: 15px 11px 16px 10px;
  background: rgba(255, 253, 247, .72);
  box-shadow: 2px 3px 0 rgba(36, 53, 47, .10);
}

.back-link {
  padding: 8px 12px 7px;
  border: 2px solid var(--ink);
  border-radius: 12px 8px 13px 9px;
  background: var(--blush);
  box-shadow: 3px 4px 0 rgba(36, 53, 47, .10);
  transform: rotate(-1deg);
}

.case-hero-media {
  border: 2px solid var(--ink);
  border-radius: 20px 13px 22px 14px;
  box-shadow: 8px 9px 0 rgba(202, 223, 242, .72);
}

.case-hero-media .case-number {
  border: 2px solid var(--ink);
  background: var(--blush);
  box-shadow: 3px 3px 0 rgba(36, 53, 47, .12);
  transform: rotate(-4deg);
}

.case-meta {
  overflow: hidden;
  border: 2px solid var(--ink);
  border-radius: 13px 18px 12px 20px;
  background: rgba(255, 253, 247, .62);
}

.case-list {
  gap: 16px;
}

.case-list li {
  border: 2px solid var(--ink);
  border-radius: 14px 9px 15px 10px;
  box-shadow: 4px 5px 0 rgba(49, 92, 77, .09);
}

.case-list li:nth-child(2n) {
  background: rgba(242, 205, 214, .58);
  transform: rotate(.4deg);
}

.case-nav {
  gap: 0;
  overflow: hidden;
  border: 2px solid var(--ink);
  border-radius: 18px 12px 20px 13px;
  box-shadow: 7px 8px 0 rgba(49, 92, 77, .10);
}

.resume-downloads a,
.resume-downloads span {
  border: 2px solid var(--ink);
  border-radius: 12px 8px 13px 9px;
  background: var(--blush);
  box-shadow: 3px 4px 0 rgba(36, 53, 47, .08);
}

.resume-content {
  border-top: 2px solid var(--ink);
}

.resume-block {
  padding-block: 36px;
}

.resume-block > h2 {
  position: relative;
  width: max-content;
}

.resume-block > h2::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -5px;
  right: -8px;
  bottom: -2px;
  height: 10px;
  border-radius: 50%;
  background: rgba(242, 205, 214, .78);
  transform: rotate(-2deg);
}

.resume-skills article {
  padding: 17px;
  border: 2px solid var(--ink);
  border-radius: 13px 9px 14px 10px;
  background: rgba(202, 223, 242, .35);
}

.resume-skills article:nth-child(2n) {
  background: rgba(200, 221, 191, .42);
}

.round-link {
  border: 2px solid var(--ink);
  border-radius: 48% 53% 46% 55%;
  box-shadow: 4px 5px 0 rgba(36, 53, 47, .11);
}

@media (max-width: 900px) {
  .case-section-wide { grid-template-columns: 1fr; gap: 34px; }
  .case-interactions, .case-interactions.count-4 { grid-template-columns: 1fr; }
  .case-interactions article { min-height: 0; }
  .case-interactions h3 { min-height: 0; }
  .case-interaction-section .case-interaction-media { grid-column: auto; margin-top: 22px; }
  .interaction-media-grid, .interaction-media-pair .interaction-media-grid { grid-template-columns: 1fr 1fr; }
  .interaction-media-grid figure.is-featured { grid-column: 1 / -1; }
  .case-figures { grid-template-columns: 1fr; }
  .case-figure:nth-child(3):last-child { grid-column: auto; }
}

@media (max-width: 640px) {
  .case-video-label { right: 12px; top: 12px; padding: 9px 11px; }
  .case-play-icon { width: 44px; }
  .case-thesis { font-size: 26px; }
  .case-step { grid-template-columns: 1fr; gap: 12px; padding: 24px 0; }
  .case-step p, .case-interactions p { font-size: 16px; }
  .case-highlights li { padding-left: 50px; font-size: 16px; }
  .case-figure img, .figure-slot { aspect-ratio: 4 / 3; }
}

@media (max-width: 560px) {
  .interaction-media-grid, .interaction-media-pair .interaction-media-grid { grid-template-columns: 1fr; }
  .interaction-media-grid figure.is-featured { grid-column: auto; }
  .interaction-media-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
}