:root {
  --paper: #f3eee4;
  --paper-deep: #e8dfd1;
  --ink: #171713;
  --muted: #6f6b63;
  --line: #ccc2b4;
  --clay: #a85c3c;
  --sage: #66796b;
  --white: #fffdf8;
  --max: 1240px;
  --serif: Georgia, "Times New Roman", "Songti SC", "SimSun", "Noto Serif CJK SC", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 83% 5%, rgb(184 91 61 / 9%), transparent 24rem),
    var(--paper);
  font-family: var(--sans);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--clay);
}

img,
svg {
  display: block;
  max-width: 100%;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-160%);
}

.skip-link:focus {
  color: var(--white);
  transform: translateY(0);
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgb(204 194 180 / 78%);
  background: rgb(243 238 228 / 90%);
  backdrop-filter: blur(16px);
}

.nav-shell,
.page-shell,
.footer-shell {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}

.nav-shell {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.wordmark span {
  color: var(--clay);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.3vw, 34px);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.primary-nav a {
  position: relative;
  text-decoration: none;
}

.primary-nav a[aria-current="page"]::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 2px;
  background: var(--clay);
  content: "";
}

.github-nav {
  padding: 8px 13px;
  border: 1px solid var(--ink);
  border-radius: 999px;
}

.github-nav:hover {
  border-color: var(--clay);
}

.language-switch {
  display: inline-flex;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 999px;
  font: 800 9px/1 var(--sans);
  letter-spacing: 0.08em;
}

.language-switch > * {
  min-width: 38px;
  padding: 8px 9px;
  text-align: center;
  text-decoration: none;
}

.language-switch > [aria-current="true"] {
  background: var(--ink);
  color: var(--white);
}

.language-switch a:hover {
  background: var(--white);
}

.page-shell {
  min-height: 70vh;
}

.eyebrow {
  display: block;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.24fr) minmax(280px, 0.76fr);
  gap: clamp(44px, 8vw, 112px);
  align-items: end;
  min-height: 690px;
  padding-block: 10vh 9vh;
}

.hero h1,
.page-intro h1,
.project-hero h1 {
  max-width: 980px;
  margin: 24px 0 32px;
  font-family: var(--serif);
  font-size: clamp(58px, 7.8vw, 118px);
  font-weight: 500;
  letter-spacing: -0.072em;
  line-height: 0.88;
}

.hero h1 em,
.page-intro h1 em,
.project-hero h1 em {
  color: var(--clay);
  font-style: normal;
}

.lede {
  max-width: 700px;
  margin: 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.42;
}

.hero-actions,
.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.button:hover {
  background: var(--ink);
  color: var(--white);
  transform: translateY(-2px);
}

.button--solid {
  background: var(--ink);
  color: var(--white);
}

.button--solid:hover {
  background: var(--clay);
  border-color: var(--clay);
}

.hero-mark {
  position: relative;
  min-height: 390px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 50% 50% 8px 8px;
  background:
    radial-gradient(circle at 38% 30%, rgb(255 255 255 / 42%), transparent 20%),
    linear-gradient(145deg, var(--paper-deep), #d9cbbc);
}

.hero-mark::before,
.hero-mark::after {
  position: absolute;
  border: 1px solid rgb(23 23 19 / 36%);
  border-radius: 50%;
  content: "";
}

.hero-mark::before {
  inset: 12%;
}

.hero-mark::after {
  inset: 25% -14%;
  transform: rotate(-18deg);
}

.mark-copy {
  position: absolute;
  z-index: 1;
  inset: auto 28px 28px;
  display: grid;
  gap: 4px;
}

.mark-copy strong {
  font-family: var(--serif);
  font-size: clamp(56px, 7vw, 92px);
  font-weight: 500;
  letter-spacing: -0.07em;
  line-height: 0.9;
}

.mark-copy span {
  color: var(--muted);
  font: 700 10px/1.4 var(--sans);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section {
  padding-block: clamp(72px, 10vw, 138px);
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 40px;
  align-items: start;
  margin-bottom: 52px;
}

.section-heading h2 {
  max-width: 780px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(42px, 5vw, 76px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.96;
}

.section-heading p {
  max-width: 510px;
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.feature-card {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.92fr);
  min-height: 470px;
  overflow: hidden;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.feature-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: clamp(34px, 5vw, 72px);
}

.feature-copy h3 {
  margin: auto 0 18px;
  font-family: var(--serif);
  font-size: clamp(64px, 7vw, 100px);
  font-weight: 500;
  letter-spacing: -0.07em;
  line-height: 0.9;
}

.feature-copy p {
  max-width: 580px;
  margin: 0 0 30px;
  color: #bdb7ad;
  font-size: 17px;
}

.feature-copy .button {
  border-color: var(--paper);
}

.feature-copy .button:hover {
  background: var(--paper);
  color: var(--ink);
}

.feature-visual {
  position: relative;
  display: grid;
  min-height: 430px;
  place-items: center;
  overflow: hidden;
  border-left: 1px solid #4b4942;
  background: #20201c;
}

.loop-ring {
  position: absolute;
  width: min(72%, 380px);
  aspect-ratio: 1;
  border: 1px solid #777168;
  border-radius: 50%;
}

.loop-ring::before,
.loop-ring::after {
  position: absolute;
  border: 1px solid #56534c;
  border-radius: 50%;
  content: "";
}

.loop-ring::before {
  inset: 12% 36%;
}

.loop-ring::after {
  inset: 36% 12%;
}

.loop-core {
  position: relative;
  z-index: 1;
  display: grid;
  width: 148px;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--clay);
  border-radius: 50%;
  color: var(--paper);
  font: 700 11px/1.3 var(--mono);
  letter-spacing: 0.12em;
  text-align: center;
  text-transform: uppercase;
}

.principle-grid,
.card-grid,
.skill-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.principle,
.info-card,
.skill-card {
  min-height: 300px;
  padding: 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.principle {
  display: flex;
  flex-direction: column;
}

.principle > span,
.card-number {
  color: var(--clay);
  font: 700 10px/1 var(--mono);
  letter-spacing: 0.14em;
}

.principle h3,
.info-card h2,
.skill-card h2 {
  margin: auto 0 14px;
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.04;
}

.principle p,
.info-card p,
.skill-card p {
  margin: 0;
  color: var(--muted);
}

.page-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(240px, 0.7fr);
  gap: 50px;
  align-items: end;
  min-height: 520px;
  padding-block: 9vh 8vh;
}

.page-intro h1 {
  max-width: 920px;
  margin-bottom: 0;
}

.intro-note {
  max-width: 390px;
  padding-top: 22px;
  border-top: 1px solid var(--ink);
  color: var(--muted);
  font-family: var(--serif);
  font-size: 20px;
}

.card-grid {
  grid-template-columns: repeat(2, 1fr);
}

.info-card {
  min-height: 360px;
  display: flex;
  flex-direction: column;
}

.info-card h2 {
  max-width: 430px;
  margin-top: auto;
  font-size: clamp(34px, 4vw, 52px);
}

.info-card p {
  max-width: 560px;
  font-size: 15px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.tag-list li {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font: 700 9px/1 var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.skill-grid {
  grid-template-columns: repeat(2, 1fr);
}

.skill-card {
  min-height: 390px;
  display: flex;
  flex-direction: column;
}

.skill-card h2 {
  margin-top: auto;
  font-size: clamp(38px, 4vw, 58px);
}

.evidence-link {
  display: inline-flex;
  margin-top: 22px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-index {
  display: grid;
  gap: 18px;
  padding-bottom: 120px;
}

.project-row {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) minmax(180px, 0.5fr) 42px;
  gap: 24px;
  align-items: center;
  min-height: 180px;
  padding: 26px 30px;
  border: 1px solid var(--line);
  text-decoration: none;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.project-row:hover {
  border-color: var(--ink);
  background: var(--white);
  color: var(--ink);
  transform: translateX(5px);
}

.project-row > span:first-child {
  color: var(--clay);
  font: 700 11px/1 var(--mono);
}

.project-row h2 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: clamp(42px, 5vw, 70px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.9;
}

.project-row p,
.project-row small {
  margin: 0;
  color: var(--muted);
}

.project-row small {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.project-arrow {
  font-family: var(--serif);
  font-size: 28px;
}

.empty-project-note {
  max-width: 700px;
  padding: 28px 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 19px;
}

.project-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(260px, 0.72fr);
  gap: clamp(48px, 8vw, 110px);
  align-items: end;
  min-height: 650px;
  padding-block: 10vh 9vh;
}

.project-hero h1 {
  margin-bottom: 28px;
}

.project-meta {
  border-top: 1px solid var(--ink);
}

.meta-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.meta-row span {
  color: var(--muted);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--sage);
}

.project-story {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(42px, 8vw, 120px);
  padding-block: clamp(76px, 10vw, 140px);
  border-top: 1px solid var(--line);
}

.project-story h2 {
  position: sticky;
  top: 120px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(42px, 5vw, 72px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.story-copy {
  max-width: 720px;
}

.story-copy--wide {
  max-width: 860px;
}

.architecture-figure {
  margin: 42px 0 0;
}

.architecture-figure img {
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--paper);
}

.architecture-figure figcaption {
  margin-top: 12px;
  color: var(--muted);
  font: 700 10px/1.5 var(--sans);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.story-copy code {
  font-family: var(--mono);
  font-size: 0.9em;
}

.story-copy > p:first-child {
  margin-top: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(24px, 2.8vw, 36px);
  line-height: 1.3;
}

.story-copy p {
  color: var(--muted);
  font-size: 16px;
}

.loop-steps {
  padding: 0;
  margin: 42px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.architecture-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 42px;
}

.architecture-panel {
  display: flex;
  min-height: 440px;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--line);
  background: var(--white);
}

.architecture-panel--core {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.architecture-panel h3 {
  margin: 70px 0 16px;
  font-family: var(--serif);
  font-size: clamp(30px, 3.2vw, 46px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1;
}

.architecture-panel > p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.architecture-panel--core > p,
.architecture-panel--core .state-list dd {
  color: #bdb7ad;
}

.state-list {
  margin: auto 0 0;
}

.state-list > div {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.architecture-panel--core .state-list > div {
  border-color: #4b4942;
}

.state-list dt {
  margin-bottom: 7px;
  color: var(--clay);
  font: 800 9px/1.2 var(--sans);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.state-list dd {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.interface-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 42px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.interface-card {
  min-height: 300px;
  display: flex;
  flex-direction: column;
  padding: 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.interface-card > span,
.business-grid span {
  color: var(--clay);
  font: 800 9px/1.2 var(--sans);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.interface-card h3,
.business-grid h3 {
  margin: auto 0 12px;
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1;
}

.interface-card p,
.business-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 42px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.business-grid article {
  min-height: 330px;
  display: flex;
  flex-direction: column;
  padding: 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.loop-steps li {
  display: grid;
  grid-template-columns: 62px 170px 1fr;
  gap: 22px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.loop-steps span {
  color: var(--clay);
  font: 700 10px/1.5 var(--mono);
}

.loop-steps strong {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
}

.loop-steps p {
  margin: 0;
  font-size: 14px;
}

.check-list {
  display: grid;
  gap: 0;
  padding: 0;
  margin: 36px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 18px 0 18px 34px;
  border-bottom: 1px solid var(--line);
}

.check-list li::before {
  position: absolute;
  top: 22px;
  left: 4px;
  width: 9px;
  height: 9px;
  border: 1px solid var(--sage);
  border-radius: 50%;
  background: var(--sage);
  content: "";
}

.check-list--roadmap li::before {
  background: transparent;
}

.privacy-callout {
  margin-block: 0 120px;
  padding: clamp(34px, 5vw, 62px);
  border: 1px solid var(--sage);
  background: rgb(102 121 107 / 8%);
}

.privacy-callout h2 {
  margin: 10px 0 14px;
  font-family: var(--serif);
  font-size: clamp(36px, 4vw, 54px);
  font-weight: 500;
  letter-spacing: -0.04em;
}

.privacy-callout p {
  max-width: 790px;
  margin: 0;
  color: var(--muted);
}

.site-footer {
  background: var(--ink);
  color: var(--paper);
}

.footer-shell {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: end;
  padding-block: 58px;
}

.footer-title {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: clamp(34px, 4vw, 54px);
  font-weight: 500;
  letter-spacing: -0.04em;
}

.footer-copy {
  margin: 0;
  color: #aaa59b;
  font-size: 12px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-links a:hover {
  color: #e78b69;
}

@media (max-width: 900px) {
  .hero,
  .page-intro,
  .project-hero,
  .section-heading,
  .project-story {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-mark {
    min-height: 330px;
  }

  .feature-card {
    grid-template-columns: 1fr;
  }

  .feature-visual {
    border-top: 1px solid #4b4942;
    border-left: 0;
  }

  .principle-grid {
    grid-template-columns: 1fr;
  }

  .architecture-split,
  .business-grid {
    grid-template-columns: 1fr;
  }

  .project-story h2 {
    position: static;
  }
}

@media (max-width: 720px) {
  .nav-shell,
  .page-shell,
  .footer-shell {
    width: min(calc(100% - 30px), var(--max));
  }

  .nav-shell {
    min-height: 0;
    flex-wrap: wrap;
    gap: 8px 16px;
    align-items: center;
    padding-block: 12px;
  }

  .primary-nav {
    flex: 1 1 auto;
    min-width: 0;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px 14px;
    font-size: 9px;
  }

  .github-nav {
    padding: 6px 9px;
    white-space: nowrap;
    flex-shrink: 0;
  }

  .language-switch {
    white-space: nowrap;
    flex-shrink: 0;
  }

  .language-switch > * {
    min-width: 34px;
    padding: 7px;
  }

  .hero h1,
  .page-intro h1,
  .project-hero h1 {
    font-size: clamp(52px, 17vw, 78px);
  }

  .card-grid,
  .skill-grid,
  .interface-grid {
    grid-template-columns: 1fr;
  }

  .project-row {
    grid-template-columns: 48px 1fr 28px;
  }

  .project-row small {
    grid-column: 2;
  }

  .project-arrow {
    grid-column: 3;
    grid-row: 1 / span 2;
  }

  .loop-steps li {
    grid-template-columns: 42px 1fr;
  }

  .loop-steps p {
    grid-column: 2;
  }

  .footer-shell {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}

/* ===== Identity hero (home pages) ===== */

.identity-hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(1100px 720px at 85% -12%, rgb(184 91 61 / 0.30), transparent 60%),
    radial-gradient(820px 560px at -8% 108%, rgb(102 121 107 / 0.20), transparent 55%),
    #151410;
  color: var(--paper);
}

.hero-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(560px circle at var(--gx, 50%) var(--gy, 20%), rgb(231 139 105 / 0.16), transparent 65%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms ease;
}

@media (pointer: fine) {
  .hero-glow {
    opacity: 1;
  }
}

.hero-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgb(243 238 228 / 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgb(243 238 228 / 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(760px 540px at 50% 28%, #000, transparent 78%);
  mask-image: radial-gradient(760px 540px at 50% 28%, #000, transparent 78%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(240px, 360px) minmax(0, 1fr);
  gap: clamp(36px, 6vw, 84px);
  align-items: center;
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
  padding-block: 116px 96px;
}

.hero-avatar {
  margin: 0;
}

.hero-avatar img {
  width: min(100%, 340px);
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid rgb(243 238 228 / 0.22);
  border-radius: 50%;
  box-shadow: 0 24px 60px rgb(0 0 0 / 0.45), 0 0 0 8px rgb(243 238 228 / 0.05);
}

.hero-eyebrow {
  color: rgb(243 238 228 / 0.62);
}

.hero-copy h1 {
  margin: 20px 0 22px;
  font-family: var(--serif);
  font-size: clamp(56px, 7.4vw, 108px);
  font-weight: 500;
  letter-spacing: -0.07em;
  line-height: 0.92;
}

.hero-dot {
  color: var(--clay);
}

.hero-lede {
  max-width: 620px;
  margin: 0;
  color: rgb(243 238 228 / 0.78);
  font-family: var(--serif);
  font-size: clamp(19px, 2vw, 26px);
  line-height: 1.5;
}

.button--hero {
  border-color: rgb(243 238 228 / 0.85);
  color: var(--paper);
}

.button--hero:hover {
  background: var(--paper);
  color: #151410;
}

.button--solid.button--hero {
  background: var(--paper);
  border-color: var(--paper);
  color: #151410;
}

.button--solid.button--hero:hover {
  background: var(--clay);
  border-color: var(--clay);
  color: var(--white);
}

/* ===== Readable content (home pages) ===== */

.home-content .section {
  padding-block: clamp(64px, 9vw, 120px);
}

.section[id] {
  scroll-margin-top: 96px;
}

.about-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.about-fact {
  display: flex;
  min-height: 200px;
  flex-direction: column;
  padding: 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.about-fact p {
  margin: auto 0 0;
  color: var(--muted);
}

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.strength-card {
  display: flex;
  min-height: 240px;
  flex-direction: column;
  padding: 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.strength-card h3 {
  margin: auto 0 14px;
  font-family: var(--serif);
  font-size: 34px;
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.04;
}

.strength-card p {
  margin: 0;
  color: var(--muted);
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  list-style: none;
}

.stack-grid li {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 20px;
  align-items: baseline;
  padding: 24px 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stack-grid li span {
  color: var(--clay);
  font: 800 9px/1.2 var(--sans);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.stack-grid li p {
  margin: 0;
  font-size: 15px;
}

.home-projects {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.home-project {
  display: flex;
  min-height: 340px;
  flex-direction: column;
  padding: 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.home-project h3 {
  margin: auto 0 14px;
  font-family: var(--serif);
  font-size: clamp(38px, 4vw, 54px);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 0.95;
}

.home-project h3 a {
  text-decoration: none;
}

.home-project h3 a:hover {
  color: var(--clay);
}

.home-project p {
  margin: 0 0 24px;
  color: var(--muted);
}

.home-project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.home-project-meta a {
  text-decoration: none;
}

.home-project-meta a:hover {
  color: var(--clay);
}

.plain-project-link {
  display: inline-block;
  margin-top: 20px;
  padding: 14px 18px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.plain-project-link:hover {
  background: var(--ink);
  color: var(--white);
}

.interest-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  list-style: none;
}

.interest-list li {
  padding: 22px 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-family: var(--serif);
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 500;
  letter-spacing: -0.02em;
}

/* ===== Profile dock ===== */

.profile-dock {
  position: fixed;
  z-index: 40;
  right: 16px;
  bottom: 16px;
  visibility: hidden;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 220ms ease, transform 220ms ease, visibility 220ms;
}

.profile-dock.is-visible {
  visibility: visible;
  opacity: 1;
  transform: none;
}

@media (max-width: 1099.98px) {
  .profile-dock {
    display: flex;
    flex-direction: column-reverse;
    align-items: flex-end;
    gap: 12px;
  }

  .dock-panel {
    max-height: calc(100dvh - 120px);
    overflow-y: auto;
  }
}

.dock-fab {
  display: grid;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}

.dock-fab img {
  width: 60px;
  height: 60px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  box-shadow: 0 8px 24px rgb(23 23 19 / 0.35);
  object-fit: cover;
}

.dock-panel {
  display: none;
  width: 264px;
  padding: 22px;
  border: 1px solid var(--ink);
  border-radius: 16px;
  background: var(--paper);
  box-shadow: 0 24px 60px rgb(23 23 19 / 0.28);
}

.dock-panel.is-open {
  display: block;
}

.dock-avatar {
  width: 80px;
  height: 80px;
  border: 1px solid var(--line);
  border-radius: 50%;
  object-fit: cover;
}

.dock-id {
  margin-top: 14px;
}

.dock-id strong {
  display: block;
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.02em;
}

.dock-id span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.dock-links {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.dock-links a {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-decoration: none;
  text-transform: uppercase;
}

.dock-links a:hover {
  color: var(--clay);
}

.dock-close {
  margin-top: 16px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

/* ===== Desktop dock: fixed right rail, content keeps a safe gutter ===== */

@media (min-width: 1100px) {
  .profile-dock {
    top: 112px;
    right: 18px;
    bottom: auto;
    width: 236px;
  }

  .dock-fab {
    display: none;
  }

  .dock-panel {
    display: block;
    width: 100%;
  }

  .dock-close {
    display: none;
  }

  .home-page .home-content {
    padding-right: 260px;
  }

  .home-page .footer-shell {
    padding-right: 260px;
  }
}

/* ===== Home responsive refinements ===== */

@media (max-width: 900px) {
  .identity-hero {
    min-height: 100svh;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-avatar img {
    width: min(62vw, 240px);
  }

  .hero-copy h1 {
    font-size: clamp(48px, 13vw, 72px);
  }

  .hero-lede {
    margin-inline: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .about-facts,
  .strengths-grid,
  .stack-grid,
  .home-projects,
  .interest-list {
    grid-template-columns: 1fr;
  }

  .stack-grid li {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

/* ===== Chinese body copy: WCAG-friendly line spacing ===== */

html[lang="zh-CN"] body {
  line-height: 1.7;
}

html[lang="zh-CN"] .hero-lede,
html[lang="zh-CN"] .lede,
html[lang="zh-CN"] .story-copy > p:first-child {
  line-height: 1.7;
}


/* ---------- Scroll reveal & project-page ambience ---------- */

.reveal.js-pending {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms cubic-bezier(.165,.84,.44,1), transform 600ms cubic-bezier(.165,.84,.44,1);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal.js-pending.is-in {
  opacity: 1;
  transform: none;
}

/* Hero entrance (project pages) */
@keyframes hero-rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}
.project-hero > * {
  animation: hero-rise 650ms cubic-bezier(.165,.84,.44,1) both;
  position: relative;
  z-index: 1;
}
.project-hero > *:nth-child(2) { animation-delay: 90ms; }
.project-hero > *:nth-child(3) { animation-delay: 180ms; }

/* Logo "stamp" micro-motion — ink pressing into paper (hover only) */
.wordmark { position: relative; transition: transform .18s cubic-bezier(.165,.84,.44,1); }
.wordmark::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 40%, rgba(255,255,255,.45) 50%, transparent 60%);
  background-size: 200% 100%;
  background-position: 120% 0;
  opacity: 0;
  transition: opacity .12s;
  pointer-events: none;
}
.wordmark:hover { transform: scale(.985); }
.wordmark:hover::after {
  opacity: 1;
  background-position: -20% 0;
  transition: background-position .5s ease-out;
}

/* Footer sun-dial — a stamp-sized diurnal arc, slowest environmental gear */
.sun-dial { color: var(--muted); animation: sun-tint 20s linear infinite; }
.sun-dial .sun { animation: sun-arc 20s linear infinite; }
@keyframes sun-arc {
  0%   { transform: translate(3px, 6px); }
  50%  { transform: translate(12px, 0px); }
  100% { transform: translate(21px, 6px); }
}
@keyframes sun-tint {
  0%, 100% { color: var(--muted); }
  50%      { color: var(--clay); }
}
@media (prefers-reduced-motion: reduce) {
  .sun-dial, .sun-dial .sun { animation: none; }
  .sun-dial .sun { transform: translate(12px, 0px); }
  .wordmark::after { display: none; }
}