/* ==========================================================================
   ATLAS — selected work on a blurred contour field
   Warm paper, one deep-bamboo accent, clay index numbers. Vanilla CSS.
   ========================================================================== */

:root {
  color-scheme: light;
  --paper: #f4f1e4;
  --paper-2: #ebe7d6;
  --card: #faf8ee;
  --ink: #20261f;
  --muted: #5f675c;
  --faint: #5f6859;
  --line: #d5d9c6;
  --line-2: #b9c2ac;
  --accent: #3f5c3f;
  --accent-2: #6f8f66;
  --bamboo: #c9d8be;
  --clay: #9a5b3b;
  --serif: "Fraunces", "Iowan Old Style", "Palatino Linotype", Georgia,
    "Songti SC", "Noto Serif CJK SC", serif;
  --sans: "Inter", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei",
    sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --nav: 68px;
  --max: 1240px;
  --gutter: clamp(20px, 5vw, 80px);
}

[data-theme="dark"] {
  color-scheme: dark;
  --paper: #121611;
  --paper-2: #18201a;
  --card: #1b241c;
  --ink: #e9ead9;
  --muted: #a8b0a0;
  --faint: #7d8678;
  --line: #2c352c;
  --line-2: #3e4a3d;
  --accent: #a9c6a0;
  --accent-2: #8fae84;
  --bamboo: #2c3a2b;
  --clay: #d09a72;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  background: var(--paper);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: transparent;
  color: var(--ink);
  font: 400 16.5px/1.65 var(--sans);
  font-feature-settings: "ss01" 1, "cv11" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: var(--paper); }

h1, h2, h3, h4, p, figure, dl, dd { margin: 0; }
h1, h2, h3, h4 { font-weight: 400; text-wrap: balance; }
p { text-wrap: pretty; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }

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

.wrap {
  width: min(var(--max), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
}

.mono {
  font: 500 10px/1.6 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

.skip {
  position: fixed;
  top: -90px;
  left: 18px;
  z-index: 500;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--paper);
  font: 500 12px/1 var(--mono);
}
.skip:focus { top: 12px; }

/* ---------- scroll-driven map backdrop ---------- */
.atlas-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background: var(--paper);
}

.atlas-map {
  position: absolute;
  left: 0;
  top: 0;
  width: max(160vw, 210vh);
  aspect-ratio: 1400 / 1037;
  transform-origin: 0 0;
  will-change: transform;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 6%, #000 94%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 6%, #000 94%, transparent 100%);
}

.atlas-map img {
  width: 100%;
  height: 100%;
  object-fit: fill;
  opacity: .82;
}

.map-pins {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.map-pin {
  position: absolute;
  width: 30px;
  height: 44px;
  transform: translate(-50%, -100%);
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s var(--ease), visibility .35s;
}

.map-pin-head {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--accent-2);
  border-radius: 50%;
  background: color-mix(in srgb, var(--paper) 84%, transparent);
  color: var(--muted);
  font: 500 10px/1 var(--mono);
  letter-spacing: .06em;
  box-shadow: 0 5px 14px color-mix(in srgb, var(--ink) 10%, transparent);
  transition: background-color .3s ease, color .3s ease, transform .3s var(--ease);
}

.map-pin::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 30px;
  width: 1px;
  height: 14px;
  background: var(--accent-2);
  transform: translateX(-50%);
}

.map-pin.is-active { opacity: 1; visibility: visible; }

.map-pin.is-active .map-pin-head {
  background: var(--clay);
  border-color: var(--clay);
  color: var(--paper);
  transform: scale(1.12);
}

.map-pin.is-active::after { background: var(--clay); }

.atlas-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg,
      color-mix(in srgb, var(--paper) 92%, transparent) 0%,
      color-mix(in srgb, var(--paper) 84%, transparent) 30%,
      color-mix(in srgb, var(--paper) 18%, transparent) 56%,
      transparent 72%),
    linear-gradient(var(--paper) 0%, transparent 10%, transparent 90%, var(--paper) 100%);
}

[data-theme="dark"] .atlas-map img {
  filter: invert(.86) hue-rotate(120deg) saturate(1.2);
  opacity: .5;
}

[data-theme="dark"] .atlas-bg::after {
  background:
    linear-gradient(90deg,
      color-mix(in srgb, var(--paper) 92%, transparent) 0%,
      color-mix(in srgb, var(--paper) 84%, transparent) 30%,
      color-mix(in srgb, var(--paper) 22%, transparent) 56%,
      transparent 72%),
    linear-gradient(var(--paper) 0%, transparent 10%, transparent 90%, var(--paper) 100%);
}

/* ---------- navigation ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 210;
  height: var(--nav);
  border-bottom: 1px solid transparent;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(14px) saturate(1.1);
  transition: height .36s var(--ease), border-color .36s var(--ease);
}

.nav.is-scrolled { height: 56px; border-bottom-color: var(--line); }

.nav-inner { height: 100%; display: flex; align-items: center; gap: 28px; }

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 300;
  letter-spacing: -.01em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
  font: 500 10px/1 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.nav-links a {
  position: relative;
  padding-block: 8px;
  color: var(--muted);
  transition: color .2s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 1px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .32s var(--ease);
}

.nav-links a:hover,
.nav-links a[aria-current="true"] { color: var(--ink); }
.nav-links a:hover::after,
.nav-links a[aria-current="true"]::after { transform: scaleX(1); }

.nav-tools {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-left: 6px;
  font: 500 10px/1 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.nav-tools > a { color: var(--muted); }
.nav-tools > a:hover { color: var(--ink); }
.nav-cv { color: var(--accent) !important; }

.theme {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: border-color .2s ease, transform .3s var(--ease);
}
.theme:hover { border-color: var(--accent); transform: rotate(18deg); }
.theme svg { width: 14px; height: 14px; }
.theme .icon-moon { display: none; }
[data-theme="dark"] .theme .icon-sun { display: none; }
[data-theme="dark"] .theme .icon-moon { display: block; }

/* ---------- hero ---------- */
.hero {
  padding-top: calc(var(--nav) + clamp(40px, 6vw, 76px));
  padding-bottom: clamp(40px, 5vw, 64px);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font: 500 10px/1.6 var(--mono);
  letter-spacing: .15em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.hero h1 {
  margin-top: clamp(18px, 2.4vw, 28px);
  margin-bottom: 14px;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(58px, 8.8vw, 132px);
  line-height: .94;
  letter-spacing: -.035em;
}

html[lang="zh-CN"] .hero h1 {
  font-family: "Noto Serif SC", var(--serif);
  font-size: clamp(56px, 9.4vw, 132px);
  line-height: 1.02;
  letter-spacing: .01em;
}

.hero-lede {
  max-width: 50ch;
  margin-top: 22px;
  color: var(--muted);
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.7;
}

html[lang="zh-CN"] .hero-lede { line-height: 1.85; }

.hero-lede a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--line-2);
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}
.hero-lede a:hover { text-decoration-color: var(--accent); }

.hero-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 26px;
  margin-top: clamp(26px, 3vw, 36px);
}

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font: 500 10.5px/1 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}
.arrow-link span { transition: transform .3s var(--ease); }
.arrow-link:hover span { transform: translate(3px, -3px); }

.sweep {
  position: relative;
  padding-bottom: 3px;
  color: var(--muted);
  font: 500 10.5px/1 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
  transition: color .2s ease;
}
.sweep::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: 100% 50%;
  transition: transform .35s var(--ease);
}
.sweep:hover { color: var(--ink); }
.sweep:hover::after { transform: scaleX(1); transform-origin: 0 50%; }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: clamp(28px, 3.6vw, 44px);
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--faint);
}

/* ---------- work sections ---------- */
.work-list { display: block; }

.piece {
  min-height: 88svh;
  display: flex;
  align-items: center;
  padding: clamp(80px, 10vh, 120px) 0;
}

.piece + .piece { border-top: 1px solid var(--line); }

.piece-main {
  display: grid;
  grid-template-columns: minmax(120px, 190px) minmax(0, 760px);
  gap: clamp(36px, 5vw, 64px);
  width: 100%;
  max-width: 1020px;
  min-height: clamp(520px, 64vh, 660px);
  align-items: stretch;
}

.piece-rail {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.piece-index {
  color: color-mix(in srgb, var(--clay) 58%, var(--paper));
  font: 300 clamp(110px, 14vw, 200px)/.72 var(--serif);
  letter-spacing: -.05em;
}

.piece-type {
  color: var(--faint);
  font: 500 10px/1.6 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.piece-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.piece h3 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(52px, 7.2vw, 108px);
  line-height: .96;
  letter-spacing: -.03em;
  transition: color .22s ease;
}

.piece:hover h3 { color: var(--accent); }

.piece-dek {
  max-width: 28ch;
  margin-top: 22px;
  color: var(--ink);
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.32;
}

.piece-body {
  max-width: 46ch;
  margin-top: 26px;
  color: var(--muted);
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.55;
}

.piece-body strong { color: var(--ink); font-weight: 500; white-space: nowrap; }

.piece-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.piece-note {
  margin: 0;
  color: var(--faint);
  font: 500 9px/1.6 var(--mono);
  letter-spacing: .09em;
  text-transform: uppercase;
}

.piece-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0;
}

.piece-links a {
  color: var(--accent);
  font: 500 9.5px/1.6 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  border-bottom: 1px solid transparent;
}
.piece-links a:hover { border-bottom-color: currentColor; }

.piece-links a.is-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 0;
  border-radius: 999px;
  background: var(--clay);
  color: var(--paper);
  font-weight: 600;
  letter-spacing: .08em;
  transition: background-color .2s ease, transform .2s var(--ease);
}

.piece-links a.is-live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--paper) 24%, transparent);
}

.piece-links a.is-live:hover {
  border-bottom-color: transparent;
  background: color-mix(in srgb, var(--clay) 82%, var(--ink));
  color: var(--paper);
  transform: translateY(-1px);
}

.archive-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 28px;
  margin-top: clamp(24px, 3vw, 40px);
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.archive-strip nav { display: flex; flex-wrap: wrap; gap: 18px; }

/* ---------- contact ---------- */
.contact {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px 56px;
  padding-block: clamp(64px, 9vw, 120px);
  border-top: 1px solid var(--line);
}

.contact-title {
  margin-top: 16px;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(52px, 8.4vw, 112px);
  line-height: .92;
  letter-spacing: -.035em;
}

.contact-title em { font-style: italic; color: var(--accent); }

html[lang="zh-CN"] .contact-title {
  font-family: "Noto Serif SC", var(--serif);
  font-size: clamp(46px, 7.4vw, 96px);
  line-height: 1.05;
  letter-spacing: .01em;
}

html[lang="zh-CN"] .contact-title em {
  font-style: normal;
  color: var(--accent);
}

.contact-email {
  display: inline-block;
  position: relative;
  margin-top: 22px;
  color: var(--accent);
  font-family: var(--serif);
  font-size: clamp(23px, 3.2vw, 40px);
  letter-spacing: -.01em;
}

.contact-email::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -.06em;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: 100% 50%;
  transition: transform .45s var(--ease);
}
.contact-email:hover::after { transform: scaleX(1); transform-origin: 0 50%; }

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  font: 500 9.5px/1.9 var(--mono);
  letter-spacing: .11em;
  text-transform: uppercase;
}

.contact-links a { color: var(--muted); transition: color .2s ease; }
.contact-links a:hover { color: var(--accent); }

/* ---------- footer ---------- */
.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 26px;
  padding-block: 20px 34px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font: 500 9px/1.7 var(--mono);
  letter-spacing: .11em;
  text-transform: uppercase;
}

.footer nav { display: flex; flex-wrap: wrap; gap: 16px; }
.footer a:hover { color: var(--ink); }

/* ---------- reveals ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .75s var(--ease), transform .85s var(--ease);
  transition-delay: var(--d, 0ms);
}

html.js [data-reveal].is-in { opacity: 1; transform: none; }

.reveal-fallback [data-reveal] {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}

/* ---------- entrance ---------- */
[data-intro] {
  animation: intro-up .9s var(--ease) both;
  animation-delay: var(--d, 0ms);
}

[data-intro="fade"] {
  animation-name: intro-fade;
  animation-duration: 1.2s;
}

@keyframes intro-up {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

@keyframes intro-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ---------- view transitions ---------- */
@view-transition { navigation: auto; }

::view-transition-old(root) { animation: vt-out .22s ease both; }
::view-transition-new(root) { animation: vt-in .42s var(--ease) both; }

@keyframes vt-out { to { opacity: 0; transform: scale(.994); } }
@keyframes vt-in { from { opacity: 0; transform: scale(1.006); } }

.hero h1 { view-transition-name: atlas-title; }

::view-transition-group(atlas-title) { animation-duration: .55s; }

/* ---------- Chinese labels ---------- */
html[lang="zh-CN"] .mono,
html[lang="zh-CN"] .nav-links,
html[lang="zh-CN"] .nav-tools,
html[lang="zh-CN"] .piece-type,
html[lang="zh-CN"] .piece-note,
html[lang="zh-CN"] .piece-links a,
html[lang="zh-CN"] .contact-links,
html[lang="zh-CN"] .footer,
html[lang="zh-CN"] .archive-strip {
  font-family: var(--sans);
  letter-spacing: .04em;
  text-transform: none;
}

html[lang="zh-CN"] .nav-links { font-size: 11.5px; }
html[lang="zh-CN"] .nav-tools { font-size: 10.5px; }
html[lang="zh-CN"] .footer { font-size: 10px; }

@media (min-width: 1000px) and (max-width: 1199px) {
  .piece-main {
    grid-template-columns: 150px minmax(0, 620px);
    gap: 40px;
    max-width: 900px;
  }
}

@media (min-width: 901px) and (max-width: 999px) {
  .piece-main {
    grid-template-columns: 140px minmax(0, 560px);
    gap: 32px;
    max-width: 780px;
  }
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .piece {
    min-height: 0;
    display: block;
    padding: 64px 0;
  }
  .piece-main {
    display: block;
    max-width: 100%;
    min-height: 0;
  }
  .piece-rail {
    flex-direction: row;
    align-items: baseline;
    gap: 16px;
    margin-bottom: 22px;
  }
  .piece-index { font-size: 76px; line-height: .8; }
  .piece h3 { font-size: clamp(38px, 9vw, 52px); line-height: 1.02; }
  .piece-foot {
    flex-direction: column;
    align-items: flex-start;
    margin-top: 30px;
  }
  .atlas-map { width: max(190vw, 240vh); }
  .map-pins { display: none; }
  .atlas-bg::after {
    background:
      linear-gradient(180deg,
        color-mix(in srgb, var(--paper) 74%, transparent) 0%,
        color-mix(in srgb, var(--paper) 58%, transparent) 55%,
        color-mix(in srgb, var(--paper) 62%, transparent) 100%);
  }
}

@media (max-width: 780px) {
  :root { --nav: 60px; }
  .nav-links { display: none; }
  .nav-tools { margin-left: auto; gap: 11px; }
  .brand { font-size: 17px; }
  .hero h1 { font-size: clamp(54px, 13vw, 76px); }
  .contact { padding-block: 60px; }
}

@media (max-width: 560px) {
  .hero { padding-top: calc(var(--nav) + 32px); }
  .hero-lede { font-size: 16px; }
  .piece-dek { font-size: 20px; }
  .piece-body { font-size: 16.5px; }
  .archive-strip { flex-direction: column; align-items: flex-start; }
  .contact-links { gap: 8px 20px; }
  .footer { flex-direction: column; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-intro] {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
  html.js [data-reveal] {
    transform: none !important;
    opacity: 1 !important;
    transition: none !important;
  }
  ::view-transition-old(root),
  ::view-transition-new(root) { animation: none; }
}

/* ---------- print ---------- */
@media print {
  .nav, .atlas-bg, .skip { display: none !important; }
  html, body { background: #fff; }
  .piece { break-inside: avoid; min-height: 0; padding-block: 24px; }
  .work-list { display: block; }
}