/* =========================================================
   Kevin Lee — personal site
   Style: light workflow SaaS (locked spec 2026-11-09)
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  --bg: #F5F6F7;
  --ink: #0D0E0F;
  --ink-2: #5A5F64;
  --ink-3: #9AA0A5;
  --line: rgba(13, 14, 15, .09);
  --line-strong: rgba(13, 14, 15, .16);
  --card: #FFFFFF;
  --green: #2FBF71;
  --cyan: #BFE9E4;
  --blue: #C7DFF5;

  --sans: "Geist", -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  --serif: "Instrument Serif", "Times New Roman", Times, serif;

  --max: 1240px;
  --pad: clamp(20px, 4vw, 48px);
  --ease: cubic-bezier(.22, .61, .36, 1);

  --r-card: 26px;
  --r-inner: 16px;
  --r-pill: 999px;
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  animation: page-in .7s var(--ease) both;
}

@keyframes page-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

h1, h2, h3 { margin: 0; font-weight: 500; letter-spacing: -.03em; line-height: 1.08; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }

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

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 3. Atmosphere (light beams + grain) ---------- */
.atmosphere {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.beam {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .85;
}

.beam--a {
  width: 62vw; height: 62vw;
  left: -22vw; top: -26vw;
  background: radial-gradient(circle at 50% 50%, rgba(191, 233, 228, .95), rgba(191, 233, 228, 0) 68%);
}

.beam--b {
  width: 52vw; height: 52vw;
  right: -14vw; top: 4vh;
  background: radial-gradient(circle at 50% 50%, rgba(199, 223, 245, 1), rgba(199, 223, 245, 0) 68%);
}

.beam--c {
  width: 70vw; height: 34vw;
  left: 22vw; bottom: -16vw;
  background: radial-gradient(ellipse at 50% 50%, rgba(219, 238, 255, .75), rgba(219, 238, 255, 0) 70%);
  opacity: .6;
}

.grain {
  position: absolute;
  inset: 0;
  opacity: .028;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- 4. Layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding-inline: var(--pad);
}

.page {
  position: relative;
  z-index: 1;
}

.section {
  padding-block: clamp(72px, 11vh, 130px);
}

.rule {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}

/* ---------- 5. Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px var(--pad);
  transition: background .35s var(--ease), box-shadow .35s var(--ease), padding .35s var(--ease);
}

.nav.is-scrolled {
  padding-block: 12px;
  background: rgba(245, 246, 247, .74);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow: 0 1px 0 var(--line);
}

.nav--inner { position: static; background: transparent; }

.brand {
  display: inline-flex;
  align-items: baseline;
  font-size: 15px;
  font-weight: 550;
  letter-spacing: -.02em;
  white-space: nowrap;
}

.brand__reg {
  font-family: var(--serif);
  font-style: italic;
  font-size: .78em;
  margin-left: .12em;
  opacity: .5;
  transform: translateY(-.35em);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.4vw, 34px);
  margin-inline-start: auto;
  font-size: 14px;
  color: var(--ink-2);
}

.nav__links a {
  position: relative;
  padding-block: 4px;
  transition: color .25s var(--ease);
}

.nav__links a:hover { color: var(--ink); }

.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}

.nav__links a:hover::after { transform: scaleX(1); }

.nav__links a.is-current { color: var(--ink); }
.nav__links a.is-current::after { transform: scaleX(1); }

.language-switch {
  display: inline-flex;
  flex: none;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .72);
}

.language-switch[hidden] { display: none; }

.language-switch button {
  min-width: 42px;
  min-height: 34px;
  padding: 0 7px;
  border: 0;
  border-radius: inherit;
  background: transparent;
  color: var(--ink-2);
  font-size: .78rem;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
}

.language-switch button[aria-pressed="true"] {
  background: var(--ink);
  color: #fff;
}

.nav__status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

/* ---------- 6. Small parts ---------- */
.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(47, 191, 113, .14);
  flex: none;
}

.label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 48px;
  padding: 0 8px 0 22px;
  border-radius: var(--r-pill);
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: -.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .35s var(--ease), background .3s var(--ease), color .3s var(--ease), box-shadow .35s var(--ease);
}

.btn__icon {
  display: grid;
  place-items: center;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .14);
  transition: transform .4s var(--ease), background .3s var(--ease);
}

.btn:hover { transform: translateY(-2px); }
.btn:hover .btn__icon { transform: translate(2px, 0) rotate(-45deg); }

.btn--dark {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 10px 26px -14px rgba(13, 14, 15, .7);
}

.btn--dark:hover { background: #1b1d1f; }

.btn--ghost {
  background: var(--card);
  color: var(--ink);
  border-color: var(--line);
  box-shadow: 0 1px 2px rgba(13, 14, 15, .04);
}

.btn--ghost:hover { border-color: var(--line-strong); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  color: var(--ink-2);
  transition: color .25s var(--ease), gap .3s var(--ease);
}

.link-arrow:hover { color: var(--ink); gap: 12px; }

.link-arrow svg { flex: none; }

/* ---------- 7. Hero ---------- */
.hero {
  position: relative;
  min-height: clamp(590px, 88svh, 900px);
  display: flex;
  align-items: flex-end;
  padding-top: 120px;
  overflow: hidden;
  /* 双击/三击人物会触发浏览器选词/选段，::selection 是近黑底 → 整块"黑色蒙版"感；
     首屏文字无需可选中，整体禁掉 */
  -webkit-user-select: none;
  user-select: none;
}

.hero__grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(20px, 3vw, 40px);
  align-items: end;
}

.hero__type {
  grid-column: 1 / span 6;
  /* 底部留白抬升文字块到视口中部（名字中心 ≈55%），与人物头部/上胸同高，视觉重心居中；
     人物保持 68vh 底部出血不动 */
  padding-bottom: clamp(122px, 19vh, 215px);
}

.hero__title {
  margin-top: 22px;
  font-size: clamp(3.4rem, 8.6vw, 7.4rem);
  font-weight: 500;
  letter-spacing: -.055em;
  line-height: .9;
  white-space: nowrap;
}

.hero__title .reg {
  font-family: var(--serif);
  font-style: italic;
  font-size: .2em;
  font-weight: 400;
  letter-spacing: 0;
  vertical-align: super;
  margin-left: .06em;
  opacity: .45;
}

.hero__line {
  margin-top: clamp(20px, 3vh, 32px);
  max-width: 36ch;
  font-size: clamp(1.02rem, 1.35vw, 1.22rem);
  line-height: 1.55;
  color: var(--ink-2);
  letter-spacing: -.011em;
}

.hero__line em {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.14em;
  letter-spacing: 0;
  color: var(--ink);
}

html:lang(zh-CN) :is(.hero__line, .section__head, .page-head) em {
  font-family: inherit;
  font-style: normal;
  font-weight: inherit;
}

.hero__cta {
  margin-top: clamp(28px, 4vh, 40px);
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.hero__hint {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--ink-3);
}

.hero__fig {
  grid-column: 7 / span 6;
  position: relative;
  align-self: end;
  display: flex;
  justify-content: center;
  align-items: flex-end;
}

.gaze-portrait {
  position: relative;
  z-index: 2;
  width: min(100%, clamp(300px, 51vh, 495px));
  aspect-ratio: 3 / 4;
  filter: drop-shadow(0 34px 46px rgba(13, 14, 15, .10));
  animation: fig-in 1.1s var(--ease) both;
  animation-delay: .15s;
}

.gaze-portrait > img,
.gaze-portrait > .gaze-frame,
.gaze-portrait > .gaze-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}

.gaze-portrait .gaze-frame,
.gaze-portrait .gaze-video,
.gaze-portrait.is-tracking > img {
  opacity: 0;
}

.gaze-portrait.is-tracking:not(.is-reacting) .gaze-frame,
.gaze-portrait.is-reacting .gaze-video.is-visible {
  opacity: 1;
}

.gaze-portrait .gaze-video:not(.has-alpha) {
  --gaze-side-fade: linear-gradient(to right, transparent, #000 5%, #000 95%, transparent);
  --gaze-top-fade: linear-gradient(transparent, #000 4%);
  -webkit-mask-image: var(--gaze-side-fade), var(--gaze-top-fade);
  -webkit-mask-composite: source-in;
  mask-image: var(--gaze-side-fade), var(--gaze-top-fade);
  mask-composite: intersect;
}

@keyframes fig-in {
  from { opacity: 0; transform: translateY(26px) scale(.985); }
  to   { opacity: 1; transform: none; }
}

.hero__glow {
  position: absolute;
  z-index: 1;
  bottom: -6%;
  left: 50%;
  translate: -50% 0;
  width: 84%;
  height: 46%;
  background: radial-gradient(ellipse at 50% 100%, rgba(199, 223, 245, .8), rgba(199, 223, 245, 0) 72%);
  filter: blur(26px);
}

/* ---------- 8. Section heads ---------- */
.section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: clamp(28px, 4.4vh, 46px);
}

.section__head h2 {
  margin-top: 14px;
  font-size: clamp(1.9rem, 3.4vw, 3rem);
  font-weight: 500;
  letter-spacing: -.04em;
  max-width: 20ch;
  text-wrap: balance;
}

.section__head h2 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -.01em;
}

/* ---------- 9. Project cards ---------- */
.project-section {
  padding-block: clamp(54px, 8vw, 100px);
  scroll-margin-top: 58px;
}

.project-section .section__head h2 { margin-top: 0; }

.project-grid {
  display: grid;
  gap: clamp(16px, 2vw, 26px);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.project-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  grid-template-areas: 'cover copy';
  align-items: center;
  gap: clamp(24px, 6vw, 90px);
  padding-block: clamp(28px, 5vw, 66px);
  border-top: 1px solid var(--line);
}

.project-feature:nth-child(even) {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
  grid-template-areas: 'copy cover';
}

.project-feature > .project-cover {
  grid-area: cover;
  border-radius: var(--r-card);
  outline: 1px solid var(--line);
  outline-offset: -1px;
}

.project-feature > .project-card__body {
  grid-area: copy;
  min-width: 0;
  gap: 8px;
  padding: 0;
}

.project-feature h3 {
  margin-top: 3px;
  font-size: clamp(1.95rem, 3.5vw, 3.3rem);
  line-height: 1.1;
  text-wrap: balance;
}

.project-feature .project-card__name { font-size: .95rem; }

.project-feature .project-card__description {
  max-width: 40ch;
  margin-top: 9px;
  font-size: clamp(.98rem, 1.4vw, 1.125rem);
  line-height: 1.68;
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  margin-top: 12px;
}

.project-actions .btn, .work-intro__link { padding-inline: 18px; }
.project-actions .link-arrow { min-height: 44px; }

.project-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 10px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  box-shadow: 0 1px 2px rgba(13, 14, 15, .04);
}

.project-card:target {
  border-color: #647784;
  box-shadow: 0 0 0 3px rgba(100, 119, 132, .15);
}

.project-cover {
  display: block;
  aspect-ratio: 16 / 10;
  border-radius: var(--r-inner);
  background: #EBEEF1;
  overflow: hidden;
}

.project-cover > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-cover--time-photo-studio { background: #E5DBCB; }
.project-cover--pocket-pasture { background: #91B3D0; }
.project-cover--where-hurts { background: #FAF9F6; }
.project-cover--where-hurts > img { object-fit: contain; }

.project-cover--relax-planet {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 7%;
  padding-top: 8%;
  background: linear-gradient(140deg, #E5F1F8, #F4EBDB);
}

.project-cover--relax-planet > img {
  flex: none;
  width: 30%;
  height: auto;
  border: 2px solid rgba(255, 255, 255, .92);
  border-radius: clamp(8px, 1.5vw, 20px);
  box-shadow: 0 16px 30px -12px rgba(35, 57, 77, .38);
  transform: rotate(-8deg);
}

.project-cover--relax-planet > img + img {
  margin-top: 4%;
  transform: rotate(8deg);
}

.project-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 8px;
  padding: clamp(14px, 2vw, 22px) clamp(6px, 1.2vw, 15px) 10px;
}

.project-card__name {
  color: var(--ink-2);
  font-size: .8rem;
  font-weight: 500;
}

.project-card h3 {
  font-size: clamp(1.12rem, 2vw, 1.45rem);
  line-height: 1.35;
  letter-spacing: 0;
  font-weight: 650;
}

.project-card__description {
  color: var(--ink-2);
  font-size: .94rem;
  line-height: 1.65;
}

.project-card__type {
  color: var(--ink-2);
  font-size: .82rem;
  font-weight: 550;
}

.project-card__facts {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--ink-2);
  font-size: .84rem;
}

/* ---------- 11. Footer ---------- */
.footer {
  margin-top: clamp(60px, 9vh, 110px);
  border-top: 1px solid var(--line);
  padding-block: 34px 40px;
}

.footer__grid {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}

.footer__brand { font-size: 15px; font-weight: 550; letter-spacing: -.02em; }

.footer__tag {
  margin-top: 8px;
  font-size: 13px;
  color: var(--ink-3);
}

.footer__tag em {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.14em;
  color: var(--ink-2);
}

.footer__links {
  display: flex;
  gap: 22px;
  font-size: 13.5px;
  color: var(--ink-2);
}

.footer__links a { transition: color .25s var(--ease); }
.footer__links a:hover { color: var(--ink); }

.footer__meta {
  margin-top: 26px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ---------- 12. Inner pages ---------- */
.page-head {
  padding-top: clamp(120px, 17vh, 190px);
  padding-bottom: clamp(34px, 5vh, 54px);
}

.page-head h1 {
  margin-top: 16px;
  font-size: clamp(2.6rem, 6.2vw, 5rem);
  letter-spacing: -.05em;
  line-height: .98;
  max-width: 18ch;
}

.page-head h1 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -.015em;
}

.page-head p {
  margin-top: 20px;
  max-width: 46ch;
  color: var(--ink-2);
  font-size: clamp(.98rem, 1.2vw, 1.08rem);
}

.work-intro__link { margin-top: 22px; }

.project-gallery {
  padding-bottom: clamp(62px, 9vw, 110px);
  scroll-margin-top: 84px;
}

.project-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
  margin-bottom: 24px;
}

.project-toolbar h2 {
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  letter-spacing: 0;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.filters[hidden], .project-card[hidden] { display: none; }

.filter {
  min-height: 44px;
  padding: 0 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-strong);
  background: transparent;
  font-size: .84rem;
  color: var(--ink-2);
  cursor: pointer;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.filter:hover { color: var(--ink); }

.filter[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.project-grid--gallery .project-card {
  scroll-margin-top: 84px;
  padding: clamp(10px, 1.3vw, 15px);
}

.project-grid--gallery .project-card__body { padding-bottom: 14px; }

/* ---------- 13. About ---------- */
.about {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(34px, 6vw, 90px);
  align-items: start;
  padding-top: clamp(40px, 7vh, 80px);
}

.about__aside {
  position: sticky;
  top: 110px;
}

.about__portrait {
  width: 100%;
  max-width: 330px;
  aspect-ratio: 4 / 4.6;
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(180deg, #EDF1F2, #E4E8EA);
  border: 1px solid var(--line);
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.about__portrait img {
  width: 96%;
  height: auto;
  transform: translateY(4px);
  filter: drop-shadow(0 16px 24px rgba(13, 14, 15, .10));
}

.about__facts {
  margin-top: 26px;
  display: grid;
  gap: 14px;
}

.fact {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}

.fact dt {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-top: 3px;
}

.fact dd { margin: 0; text-align: right; color: var(--ink); }

.prose p {
  font-size: clamp(1rem, 1.28vw, 1.13rem);
  line-height: 1.72;
  color: var(--ink-2);
  letter-spacing: -.008em;
  max-width: 58ch;
}

.prose p + p { margin-top: 1.2em; }

.prose strong { color: var(--ink); font-weight: 550; }

.prose em {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.1em;
  color: var(--ink);
}

.timeline {
  margin-top: clamp(46px, 7vh, 70px);
  border-top: 1px solid var(--line);
}

.tl {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 22px;
  padding-block: 20px;
  border-bottom: 1px solid var(--line);
}

.tl__year {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--ink-3);
  padding-top: 4px;
}

.tl__what { font-size: 15px; color: var(--ink); }
.tl__what span { display: block; margin-top: 3px; font-size: 13.5px; color: var(--ink-2); }

/* ---------- 14. Reveal ---------- */
.has-reveal .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .85s var(--ease), transform .85s var(--ease);
  transition-delay: var(--d, 0s);
}

.has-reveal .reveal.is-in { opacity: 1; transform: none; }

/* ---------- 15. Responsive ---------- */
@media (max-width: 1080px) {
  .hero__title { font-size: clamp(3rem, 8.4vw, 5.4rem); }
}

@media (max-width: 860px) {
  .hero {
    align-items: flex-start;
    min-height: auto;
    padding-top: 108px;
  }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__type { grid-column: 1; padding-bottom: 0; order: 1; }
  .hero__fig { grid-column: 1; order: 2; margin-top: 30px; }
  .gaze-portrait { width: min(100%, clamp(255px, 39vh, 352.5px)); }
  .hero__line { max-width: 44ch; }
  .about { grid-template-columns: 1fr; }
  .about__aside { position: static; }
  .about__portrait { max-width: 260px; }
  .project-grid--gallery { grid-template-columns: minmax(0, 1fr); }
  .project-feature, .project-feature:nth-child(even) {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: 'cover' 'copy';
    gap: 20px;
  }
  .section__head { flex-direction: column; align-items: flex-start; gap: 16px; }
}

@media (max-width: 620px) {
  .nav { gap: 9px; }
  .nav__links { gap: clamp(7px, 2vw, 13px); font-size: 13px; }
  .language-switch button { min-width: 36px; padding-inline: 5px; }
  .nav__status { display: none; }
  .hero__title { font-size: clamp(2.6rem, 12vw, 3.6rem); }
  .footer__grid { flex-direction: column; gap: 22px; }
  .btn { height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
  .has-reveal .reveal { opacity: 1; transform: none; }
  .gaze-portrait { animation: none; }
}

/* ---------- works · robot hero stage (robot-hero/CONTRACT.md) ---------- */
.page-head.has-robot{position:relative;padding-bottom:244px}
.robot-stage{
  --rb-size:236px;--rb-desk-inset:6%;--rb-ground:20px;
  position:absolute;left:0;right:0;bottom:30px;height:242px;pointer-events:none;z-index:1
}
.robot-ground{position:absolute;left:0;right:0;bottom:var(--rb-ground);height:1px;
  background:var(--line-strong);opacity:.8;transition:opacity .7s}
.robot-stage.is-work:not(.is-away) .robot-ground,.robot-stage.is-static .robot-ground{opacity:0}
.robot-trail{position:absolute;left:0;bottom:calc(var(--rb-ground) + 1px);width:0;border-top:2px dotted rgba(13,14,15,.14)}
.robot-stage.is-work .robot-trail{width:calc(100% - var(--rb-desk-inset) - var(--rb-size) - 10px)}
/* W1 feet and D0 furniture meet the same line at either breakpoint. */
#rbTraveler,#rbDesk,#rbPlant{position:absolute;bottom:calc(var(--rb-ground) - .086 * var(--rb-size));
  width:var(--rb-size);height:var(--rb-size)}
#rbTraveler{left:0;transform:translateX(var(--rb-x,0px))}
#rbDesk{right:var(--rb-desk-inset)}
#rbPlant{opacity:0;pointer-events:none;transition:opacity .25s ease}
.robot-stage.is-plant-visible #rbPlant{opacity:1}
.robot-stage video,.rb-static{position:absolute;inset:0;width:100%;height:100%;display:none;
  filter:drop-shadow(0 10px 12px rgba(13,14,15,.12))}
.robot-stage video{opacity:0;transition:opacity .1s ease;pointer-events:none}
.robot-stage video.rb-flip{transform:scaleX(-1)}
.rb-greet{
  position:absolute;left:0;bottom:var(--rb-ground);z-index:5;
  width:calc(.51 * var(--rb-size));height:calc(.83 * var(--rb-size));
  transform:translateX(calc(var(--rb-x,0px) + .25 * var(--rb-size)));
  padding:0;border:0;border-radius:20px;background:transparent;cursor:pointer;pointer-events:auto
}
.rb-greet[data-position="desk"]{
  left:auto;right:calc(var(--rb-desk-inset) + .15 * var(--rb-size));
  width:calc(.46 * var(--rb-size));height:calc(.78 * var(--rb-size));transform:none
}
.rb-greet[aria-disabled="true"]{pointer-events:none;outline:none}
.rb-greet:not([aria-disabled="true"]):focus-visible{outline:2px solid #16858d;outline-offset:3px}
.rb-greet.is-acknowledged::before{
  content:"✦";position:absolute;right:0;top:4%;color:#16858d;font-size:18px;line-height:1;
  animation:rbAcknowledge .55s var(--ease) both
}
.rb-greet[data-facing="left"].is-acknowledged::before{right:auto;left:0}
@keyframes rbAcknowledge{
  0%{opacity:0;transform:translateY(4px) scale(.55)}
  25%{opacity:1;transform:translateY(0) scale(1)}
  100%{opacity:0;transform:translateY(-9px) scale(.85)}
}
/* The wider departure and return shots add room on the left of the fixed desk. */
.robot-stage video.rb-desk-wide{inset:-25% auto auto -50%;width:150%;height:150%}
#rbEmptyDesk{position:absolute;inset:0;width:100%;height:100%;opacity:0;transition:opacity .1s ease;
  filter:drop-shadow(0 10px 12px rgba(13,14,15,.12))}
.robot-stage.is-desk-empty #rbEmptyDesk{opacity:1}
.robot-stage.is-static .rb-static{display:block}
.rb-sym{position:absolute;font-family:var(--mono);font-size:13px;font-weight:600;opacity:0;pointer-events:none;z-index:4}
.robot-stage.is-work:not(.is-break) .rb-sym{animation:rbRise 2.4s ease-out infinite}
.rb-sym.s1{bottom:150px;right:calc(var(--rb-desk-inset) + .85 * var(--rb-size));color:#4DD8E6;animation-delay:0s}
.rb-sym.s2{bottom:134px;right:calc(var(--rb-desk-inset) + .05 * var(--rb-size));color:#2FBF71;animation-delay:.5s}
.rb-sym.s3{bottom:166px;right:calc(var(--rb-desk-inset) + .46 * var(--rb-size));color:var(--ink);animation-delay:1s}
.rb-sym.s4{bottom:128px;right:calc(var(--rb-desk-inset) + 1.14 * var(--rb-size));color:#4DD8E6;animation-delay:1.6s}
@keyframes rbRise{0%{opacity:0;transform:translateY(0)}12%{opacity:.8}100%{opacity:0;transform:translateY(-110px)}}
@media (max-width:860px){
  .page-head.has-robot{padding-bottom:200px}
  .robot-stage{--rb-size:170px;--rb-desk-inset:4%;bottom:18px}
}