/* ─── Tokens ─────────────────────────────────────────────────── */
:root {
  --bg: #fbfbfb;
  --bg-elev: #ffffff;
  --ink: #0a0a0a;
  --ink-2: oklch(0.42 0.004 250);
  --ink-3: oklch(0.62 0.004 250);
  --line: oklch(0.92 0.003 250);
  --line-2: oklch(0.86 0.004 250);
  --accent: #0a0a0a;
  --metric: var(--ink);

  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;

  /* density scale (overridden by tweak) */
  --pad-section-y: 160px;
  --pad-gap: 96px;
  --pad-card-y: 80px;
  --pad-page-x: clamp(24px, 5vw, 80px);

  --maxw: 1440px;
  --maxw-prose: 640px;

  --radius-card: 20px;
  --radius-pill: 999px;

  --ease: cubic-bezier(.22,.61,.36,1);
}

:root.dark {
  --bg: #0a0a0a;
  --bg-elev: #131313;
  --ink: #f5f5f5;
  --ink-2: oklch(0.78 0.004 250);
  --ink-3: oklch(0.58 0.004 250);
  --line: oklch(0.22 0.003 250);
  --line-2: oklch(0.30 0.004 250);
  --accent: #f5f5f5;
  --metric: var(--ink);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-feature-settings: "cv11", "ss01", "ss03";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-size: 18px;
  line-height: 1.5;
  letter-spacing: -0.005em;
  transition: background .4s var(--ease), color .4s var(--ease);
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

/* ─── Layout primitives ──────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--pad-page-x);
  padding-right: var(--pad-page-x);
}
.container--prose {
  max-width: calc(var(--maxw-prose) + var(--pad-page-x) * 2);
}

.section {
  padding-top: var(--pad-section-y);
  padding-bottom: var(--pad-section-y);
}
.section--tight { padding-top: var(--pad-gap); padding-bottom: var(--pad-gap); }

/* ─── Nav ────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: .5px solid var(--line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 56px;
}
.nav-mark {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 500; font-size: 16.5px; letter-spacing: -0.01em;
  color: var(--ink);
}
.nav-logo {
  width: 28px; height: 28px;
  display: block;
  object-fit: contain;
  border-radius: 4px;
  transform: translateY(-0.5px);
}
.footer-logo {
  width: 56px; height: 56px;
  display: block;
  object-fit: contain;
  border-radius: 6px;
  margin-bottom: 40px;
}
:root.dark .nav-logo,
:root.dark .footer-logo { filter: invert(1); }
.nav-links {
  display: flex; gap: 28px; align-items: center;
  font-size: 15px; color: var(--ink-2);
}
.nav-links a { transition: color .2s var(--ease); }
.nav-links a:hover { color: var(--ink); }

/* Hamburger toggle (shown only on mobile) */
.nav-toggle {
  display: none;
  background: none; border: 0; cursor: pointer;
  padding: 8px; margin-right: -8px;
  color: var(--ink); -webkit-tap-highlight-color: transparent;
}
.nav-toggle__box { display: block; width: 22px; height: 16px; position: relative; }
.nav-toggle__box span {
  position: absolute; left: 0; height: 1.5px; width: 100%;
  background: currentColor; border-radius: 2px;
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.nav-toggle__box span:nth-child(1) { top: 0; }
.nav-toggle__box span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle__box span:nth-child(3) { bottom: 0; }
.nav--open .nav-toggle__box span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
.nav--open .nav-toggle__box span:nth-child(2) { opacity: 0; }
.nav--open .nav-toggle__box span:nth-child(3) { bottom: 50%; transform: translateY(50%) rotate(-45deg); }

/* ─── Hero ───────────────────────────────────────────────────── */
.hero {
  padding-top: clamp(120px, 22vh, 220px);
  padding-bottom: clamp(140px, 26vh, 280px);
}
.hero-eyebrow {
  font-size: 13px; color: var(--ink-3); letter-spacing: 0.02em;
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 32px;
}
.hero-eyebrow .pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: oklch(0.72 0.16 145);
  box-shadow: 0 0 0 0 oklch(0.72 0.16 145 / 0.6);
  animation: pulse 2.2s var(--ease) infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 oklch(0.72 0.16 145 / 0.6); }
  70% { box-shadow: 0 0 0 8px oklch(0.72 0.16 145 / 0); }
  100% { box-shadow: 0 0 0 0 oklch(0.72 0.16 145 / 0); }
}
.hero-display {
  font-family: var(--font-display);
  font-size: clamp(48px, 8.4vw, 128px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 0.96;
  margin: 0;
  text-wrap: balance;
}
.hero-display .accent-mark { font-weight: 600; color: var(--ink); }
.hero-sub {
  margin-top: 40px;
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.45;
  color: var(--ink-2);
  max-width: 620px;
  letter-spacing: -0.012em;
  text-wrap: pretty;
}
.hero-meta {
  margin-top: 56px;
  display: flex; gap: 32px; flex-wrap: wrap;
  font-size: 13px; color: var(--ink-3);
  letter-spacing: 0.04em; text-transform: uppercase;
}
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta .sq {
  width: 6px; height: 6px; background: var(--ink-3); border-radius: 1px;
}
.hero-keywords {
  margin-top: 32px;
  display: flex; flex-wrap: wrap; gap: 9px;
  max-width: 100%;
  list-style: none; padding: 0;
}
.hero-keywords li {
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding: 7px 15px 7px 12px;
  border: .5px solid var(--line);
  border-radius: 999px;
  white-space: nowrap;
  display: inline-flex; align-items: center; gap: 8px;
}

/* Hero — featured variant */
.hero-feat-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: end;
}
.hero-feat-grid .hero-display { font-size: clamp(40px, 5.6vw, 84px); }
.hero-feat-img {
  aspect-ratio: 4/5;
  border-radius: var(--radius-card);
  background: var(--bg-elev);
  border: .5px solid var(--line);
  position: relative; overflow: hidden;
}

/* Hero — marquee variant */
.hero-marquee {
  margin-top: 80px;
  overflow: hidden;
  border-top: .5px solid var(--line);
  border-bottom: .5px solid var(--line);
  padding: 24px 0;
  mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
}
.hero-marquee-track {
  display: flex; gap: 32px;
  animation: marquee 38s linear infinite;
  width: max-content;
}
.hero-marquee-track > * { flex: 0 0 280px; aspect-ratio: 4/3; }
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ─── Section header ─────────────────────────────────────────── */
.sec-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 64px; gap: 32px;
  padding-bottom: 20px;
  border-bottom: .5px solid var(--line);
}
.sec-head-num {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--ink-3);
  letter-spacing: 0.06em;
}
.sec-head-title {
  font-size: clamp(28px, 3.2vw, 40px);
  font-weight: 500;
  letter-spacing: -0.025em;
  margin: 0;
  line-height: 1.05;
}
.sec-head-aside {
  font-size: 14px; color: var(--ink-3);
  text-align: right; max-width: 320px;
}

/* ─── Work grid (variants) ───────────────────────────────────── */
.work-list { display: flex; flex-direction: column; gap: var(--pad-gap); }

/* Stacked-overlap: applies when neither two-col nor asym is set.
   Cards become sticky and visually overlap as you scroll, with the
   receding card scaling/fading slightly via a CSS var driven by JS. */
.work-list:not(.work-list--two-col):not(.work-list--asym):not(.work-list--split) {
  gap: 0;
  padding-bottom: 40vh; /* runway so last card can fully arrive */
}
.work-list:not(.work-list--two-col):not(.work-list--asym):not(.work-list--split) > .work-card {
  position: sticky;
  margin-bottom: 24px;
  --recede: 0;
  transform-origin: 50% 0%;
  transform:
    translateY(calc(var(--recede) * -10px))
    scale(calc(1 - var(--recede) * 0.04));
  opacity: calc(1 - var(--recede) * 0.35);
  transition: transform .4s var(--ease), opacity .4s var(--ease), box-shadow .5s var(--ease), border-color .3s var(--ease);
  will-change: transform, opacity;
}
.work-list:not(.work-list--two-col):not(.work-list--asym):not(.work-list--split) > .work-card:nth-child(1) { top: 72px;  z-index: 1; }
.work-list:not(.work-list--two-col):not(.work-list--asym):not(.work-list--split) > .work-card:nth-child(2) { top: 88px;  z-index: 2; }
.work-list:not(.work-list--two-col):not(.work-list--asym):not(.work-list--split) > .work-card:nth-child(3) { top: 104px; z-index: 3; }
.work-list:not(.work-list--two-col):not(.work-list--asym):not(.work-list--split) > .work-card:nth-child(4) { top: 120px; z-index: 4; }
/* override the default hover translateY so it doesn't fight the scroll transform */
.work-list:not(.work-list--two-col):not(.work-list--asym):not(.work-list--split) > .work-card:hover {
  transform:
    translateY(calc(var(--recede) * -10px))
    scale(calc(1 - var(--recede) * 0.04));
  box-shadow: 0 24px 48px -24px rgba(0,0,0,.18);
}

.work-list--two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px 32px;
  align-items: start;
}
/* Subgrid alignment: each card shares row tracks with its neighbour so the
   media, tags, title, hook, metrics and CTA all sit on the same baseline. */
.work-list--two-col .work-card {
  grid-row: span 6;
  display: grid;
  grid-template-rows: subgrid;
  row-gap: 0;
}
.work-list--two-col .work-card-body {
  grid-row: span 5;
  display: grid;
  grid-template-rows: subgrid;
  row-gap: 14px;
  flex: none;
}
.work-list--two-col .work-card-cta { margin-top: 0; }

.work-list--asym {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 32px 24px;
}
.work-list--asym .work-card:nth-child(1) { grid-column: span 8; }
.work-list--asym .work-card:nth-child(2) { grid-column: span 4; }
.work-list--asym .work-card:nth-child(3) { grid-column: span 5; }
.work-list--asym .work-card:nth-child(4) { grid-column: span 7; }

/* Split rows: one card per row, image and content side-by-side, alternating sides */
.work-list--split {
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 6vw, 72px);
}
.work-list--split .work-card {
  flex-direction: row;
  align-items: center;
}
.work-list--split .work-card:nth-child(even) {
  flex-direction: row-reverse;
}
.work-list--split .work-card-media {
  aspect-ratio: 4/3;
  flex: 1 1 48%;
  min-height: 0;
  padding: clamp(16px, 1.6vw, 22px);
}
.work-list--split .work-card-media img,
.work-list--split .work-card-media .placeholder {
  border-radius: 14px;
  overflow: hidden;
}
/* Tandem card — the raw-note → parent-message translation, as live text */
.tandem-tcard {
  width: 100%; height: 100%; border-radius: 14px; overflow: hidden;
  background: linear-gradient(170deg, #eef1f6, #f7f8fa);
  border: 1px solid var(--line);
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  gap: 20px; padding: clamp(18px, 2.2vw, 28px);
}
.tandem-tnote {
  width: 84%;
  background: var(--bg); border: 1px solid var(--line); border-radius: 12px;
  padding: 20px 18px; box-shadow: 0 12px 30px -22px rgba(20,30,60,.35);
}
.tandem-tnote__lab {
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.09em;
  text-transform: uppercase; margin-bottom: 6px;
}
.tandem-tnote--raw .tandem-tnote__lab { color: #a15a2b; }
.tandem-tnote--warm .tandem-tnote__lab { color: #2f7d54; }
.tandem-tnote__txt { font-size: clamp(12.5px, 1.05vw, 14.5px); line-height: 1.4; color: var(--ink); }
.tandem-tarrow {
  align-self: center; display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--ink-4);
}
.tandem-tarrow svg { width: 17px; height: 17px; }
.dark .tandem-tcard { background: linear-gradient(170deg, #1a1d24, #14161b); }
.work-list--split .work-card-body {
  flex: 1 1 52%;
  justify-content: center;
  padding: clamp(36px, 4vw, 64px);
}

/* ─── Work card ──────────────────────────────────────────────── */
.work-card {
  display: flex;
  flex-direction: column;
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--bg-elev);
  border: .5px solid var(--line);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease), border-color .3s var(--ease);
  isolation: isolate;
}
.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 48px -24px rgba(0,0,0,.12);
  border-color: var(--line-2);
}
.work-card-media {
  aspect-ratio: 16/10;
  position: relative;
  overflow: hidden;
  background: var(--bg-elev);
}
.work-list--two-col .work-card-media,
.work-list--asym .work-card-media { aspect-ratio: 4/3; }

.work-card-body {
  padding: 32px clamp(24px, 4vw, 48px) 40px;
  display: flex; flex-direction: column; gap: 14px;
  flex: 1;
}
.work-card-row {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 24px;
}
.work-card-num {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--ink-3);
  letter-spacing: 0.08em;
}
.work-card-tags {
  display: flex; gap: 6px; flex-wrap: wrap;
}
.work-card-tag {
  font-size: 11px;
  color: var(--ink-3);
  border: .5px solid var(--line-2);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.work-card-title {
  font-size: clamp(24px, 2.4vw, 34px);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin: 10px 0 0;
}
.work-card-desc {
  font-size: 15.5px; color: var(--ink-2);
  max-width: 560px;
  line-height: 1.5;
  text-wrap: pretty;
}
.work-card-cta {
  margin-top: auto;
  padding-top: 34px;
  font-size: 13.5px;
  color: var(--ink);
  display: inline-flex; align-items: center; gap: 8px;
  letter-spacing: -0.005em;
}
.work-card-cta .arrow {
  transition: transform .35s var(--ease);
  display: inline-block;
}
.work-card:hover .work-card-cta .arrow { transform: translateX(4px); }

/* Placeholder card — no hover, no pointer */
.work-card--placeholder { cursor: default; }
.work-card--placeholder:hover { transform: none; box-shadow: none; }
.work-list:not(.work-list--two-col):not(.work-list--asym):not(.work-list--split) > .work-card--placeholder:hover { transform: translateY(calc(var(--recede) * -10px)) scale(var(--scale)); box-shadow: none; }

/* metrics row on each card */
.work-card-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 12px;
  padding-top: 24px;
  border-top: .5px solid var(--line);
  max-width: 560px;
}
.work-card-metric-value {
  font-size: clamp(28px, 2.8vw, 40px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--metric);
  font-variant-numeric: tabular-nums;
  margin-bottom: 7px;
}
.work-card-metric-label {
  font-size: 11.5px;
  color: var(--ink-3);
  letter-spacing: 0.01em;
  line-height: 1.35;
}

/* hero role line (featured hero) */
.hero-role {
  margin-top: 20px;
  font-size: clamp(16px, 1.2vw, 18px);
  color: var(--ink-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
}

/* ─── Placeholder media ──────────────────────────────────────── */
.placeholder {
  width: 100%; height: 100%;
  background:
    repeating-linear-gradient(135deg,
      transparent 0, transparent 14px,
      color-mix(in srgb, var(--ink) 3%, transparent) 14px,
      color-mix(in srgb, var(--ink) 3%, transparent) 15px),
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, var(--bg-elev)), var(--bg-elev));
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.placeholder::before {
  content: "";
  position: absolute; inset: 24px;
  border: .5px dashed color-mix(in srgb, var(--ink) 18%, transparent);
  border-radius: 12px;
}
.placeholder-label {
  position: relative;
  font-family: var(--font-mono);
  font-size: 11px;
  color: color-mix(in srgb, var(--ink) 50%, transparent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: color-mix(in srgb, var(--bg-elev) 85%, transparent);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(4px);
}

/* ─── About ──────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}
.about-portrait {
  aspect-ratio: 4/5;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: .5px solid var(--line);
}
.about-body p {
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: -0.012em;
  color: var(--ink-2);
  margin: 0 0 24px;
  text-wrap: pretty;
}
.about-body p + p { color: var(--ink-2); }
.about-traits {
  margin-top: 48px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  padding-top: 32px;
  border-top: .5px solid var(--line);
}
.trait-label {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.trait-value { font-size: 15px; color: var(--ink); line-height: 1.4; }

/* About — chip lists for tools & skills */
.trait-chips {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-top: 2px;
}
.trait-chip {
  font-size: 12.5px;
  color: var(--ink-2);
  border: .5px solid var(--line-2);
  padding: 5px 11px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

/* About — résumé link */
.about-resume-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  color: var(--ink);
  border-bottom: .5px solid var(--ink);
  padding-bottom: 4px;
  letter-spacing: -0.005em;
  transition: opacity .2s var(--ease);
}
.about-resume-link:hover { opacity: .7; }
.about-resume-link span { transition: transform .25s var(--ease); display: inline-block; }
.about-resume-link:hover span { transform: translate(2px, -2px); }

/* ─── Experience ─────────────────────────────────────────────── */
.exp-list { display: flex; flex-direction: column; }
.exp-row {
  display: grid;
  grid-template-columns: 140px 1.4fr 1fr 100px;
  gap: 32px;
  padding: 28px 0;
  border-top: .5px solid var(--line);
  align-items: baseline;
  transition: padding .3s var(--ease);
}
.exp-row:last-child { border-bottom: .5px solid var(--line); }
.exp-year {
  font-family: var(--font-mono);
  font-size: 13px; color: var(--ink-3);
  letter-spacing: 0.04em;
}
.exp-role { font-size: 18px; font-weight: 500; letter-spacing: -0.015em; }
.exp-company { font-size: 15px; color: var(--ink-2); letter-spacing: -0.005em; }
.exp-loc { font-size: 13px; color: var(--ink-3); text-align: right; letter-spacing: 0.02em; }

/* ─── Footer / Contact ───────────────────────────────────────── */
.footer {
  padding-top: clamp(120px, 18vh, 200px);
  padding-bottom: 64px;
}
.footer-cta {
  font-size: clamp(20px, 3.6vw, 52px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
  margin: 0 0 64px;
  text-wrap: balance;
}
.footer-cta a {
  display: inline-block;
  border-bottom: 2px solid var(--cta-accent, var(--ink));
  padding-bottom: 4px;
  color: var(--cta-accent, var(--ink));
  font-weight: 600;
  transition: opacity .2s var(--ease);
}
.footer-cta a:hover { opacity: .7; }
.footer-links {
  display: flex; gap: 32px; flex-wrap: wrap;
  padding-top: 32px;
  border-top: .5px solid var(--line);
  align-items: center;
}
.footer-link {
  font-size: 14px;
  color: var(--ink-2);
  display: inline-flex; align-items: center; gap: 8px;
  transition: color .2s var(--ease);
}
.footer-link:hover { color: var(--ink); }
.footer-copy {
  font-family: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
}
.footer-copy .copy-hint {
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  border: .5px solid var(--line);
  border-radius: 999px;
  padding: 3px 9px;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.footer-copy:hover .copy-hint { color: var(--ink); border-color: var(--ink-3); }
.footer-copy.is-copied .copy-hint {
  color: var(--ink);
  border-color: var(--ink);
  font-weight: 600;
}
.footer-bottom {
  margin-top: 24px;
  display: flex; justify-content: space-between;
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.02em;
}

/* ─── Density variants ───────────────────────────────────────── */
:root[data-density="compact"] {
  --pad-section-y: 96px;
  --pad-gap: 56px;
  --pad-card-y: 48px;
}
:root[data-density="spacious"] {
  --pad-section-y: 220px;
  --pad-gap: 128px;
  --pad-card-y: 112px;
}

/* ─── Scroll reveal ──────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-eyebrow .pulse { animation: none; }
  .hero-marquee-track { animation: none; }
}

/* ─── Responsive ─────────────────────────────────────────────── */
/* Tablet + mobile (≤ 1199) */
@media (max-width: 1199px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-feat-grid { grid-template-columns: 1fr; gap: 40px; }
  .work-list--two-col,
  .work-list--asym { grid-template-columns: 1fr; }
  .work-list--asym .work-card { grid-column: span 1 !important; }
}
/* Split rows stack below 900px */
@media (max-width: 899px) {
  .work-list--split .work-card,
  .work-list--split .work-card:nth-child(even) { flex-direction: column; }
  .work-list--split .work-card-media { aspect-ratio: 16/10; min-height: 0; }
}
/* Mobile only (≤ 809) */
@media (max-width: 809px) {
  :root {
    --pad-section-y: 96px;
    --pad-gap: 64px;
    --pad-card-y: 48px;
  }
  .nav-toggle { display: inline-flex; align-items: center; }
  .nav-links {
    position: absolute; top: 56px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg-elev);
    border-bottom: .5px solid var(--line);
    box-shadow: 0 24px 40px -28px rgba(0,0,0,.25);
    padding: 4px var(--pad-page-x) 12px;
    font-size: 17px;
    max-height: 0; overflow: hidden;
    opacity: 0; visibility: hidden;
    transition: max-height .32s var(--ease), opacity .24s var(--ease), visibility .32s var(--ease);
  }
  .nav--open .nav-links {
    max-height: 80vh; opacity: 1; visibility: visible;
  }
  .nav-links a {
    padding: 14px 0; width: 100%;
    border-top: .5px solid var(--line);
    color: var(--ink);
  }
  .nav-links .hide-sm { display: block; }
  .about-traits { grid-template-columns: 1fr 1fr; }
  .exp-row {
    grid-template-columns: 80px 1fr;
    grid-template-rows: auto auto;
    gap: 4px 24px;
    padding: 20px 0;
  }
  .exp-company { grid-column: 2; }
  .exp-loc { display: none; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .sec-head-aside { text-align: left; }
  .work-card-metrics { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .footer-meta { flex-direction: column; gap: 12px; align-items: flex-start; }
}

/* ─── Case study page ────────────────────────────────────────── */
.cs-hero { padding-top: 80px; padding-bottom: 64px; }
.cs-back {
  font-size: 13px; color: var(--ink-3);
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 56px;
  transition: color .2s var(--ease);
}
.cs-back:hover { color: var(--ink); }
.cs-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.cs-title {
  font-size: clamp(40px, 6.4vw, 96px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
  margin: 0 0 40px;
  text-wrap: balance;
}
.cs-lede {
  font-size: clamp(20px, 1.8vw, 26px);
  line-height: 1.4;
  letter-spacing: -0.015em;
  color: var(--ink-2);
  max-width: 720px;
  margin: 0;
  text-wrap: pretty;
}
.cs-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 40px 0;
  margin-top: 64px;
  border-top: .5px solid var(--line);
  border-bottom: .5px solid var(--line);
}
.cs-meta-label {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.cs-meta-value { font-size: 15px; color: var(--ink); line-height: 1.4; }

.cs-hero-media {
  aspect-ratio: 16/9;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: .5px solid var(--line);
  margin-top: 64px;
}
.cs-section { padding: var(--pad-gap) 0; }
.cs-section h2 {
  font-size: clamp(24px, 2.4vw, 32px);
  font-weight: 500;
  letter-spacing: -0.025em;
  margin: 0 0 24px;
  max-width: var(--maxw-prose);
}
.cs-section p {
  font-size: 18px;
  line-height: 1.6;
  color: var(--ink);
  max-width: var(--maxw-prose);
  margin: 0 0 20px;
  letter-spacing: -0.005em;
}
.cs-section p + p { color: var(--ink-2); }
.cs-callout {
  font-size: clamp(24px, 2.4vw, 36px);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.2;
  padding: 40px 0;
  border-top: .5px solid var(--line);
  border-bottom: .5px solid var(--line);
  margin: 32px 0;
  max-width: 880px;
  text-wrap: balance;
}
.cs-callout .quote-mark {
  font-family: var(--font-mono);
  color: var(--ink-3);
  margin-right: 12px;
}
.cs-image {
  aspect-ratio: 16/10;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: .5px solid var(--line);
  margin: 32px 0;
}
.cs-image--tall { aspect-ratio: 4/5; max-width: 480px; }
.cs-image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 32px 0;
}
.cs-image-grid .cs-image { margin: 0; aspect-ratio: 4/3; }

.cs-numbers {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  padding: 48px 0;
  margin: 32px 0;
  border-top: .5px solid var(--line);
  border-bottom: .5px solid var(--line);
}
.cs-num {
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
  margin: 0 0 8px;
}
.cs-num-label { font-size: 13px; color: var(--ink-3); letter-spacing: 0.02em; }

/* ─── Editorial case study (richer template) ────────────── */
.cs-pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border: .5px solid var(--line-2);
  border-radius: var(--radius-pill);
  margin-bottom: 28px;
}
.cs-secnum {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
  font-weight: 500;
}
.cs-h2 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1;
  margin: 0 0 32px;
  text-wrap: balance;
}
.cs-h3 {
  font-size: clamp(22px, 2.2vw, 28px);
  font-weight: 500;
  letter-spacing: -0.022em;
  line-height: 1.15;
  margin: 0 0 16px;
}
.cs-divider {
  height: .5px;
  background: var(--line);
  margin: 0;
  border: 0;
}
.cs-block {
  padding: clamp(72px, 11vh, 128px) 0;
}
.cs-block + .cs-block { border-top: .5px solid var(--line); }

.cs-block-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: var(--maxw-prose);
  margin-bottom: 56px;
}
.cs-block-lede {
  font-size: clamp(20px, 1.8vw, 24px);
  line-height: 1.45;
  color: var(--ink-2);
  letter-spacing: -0.012em;
  margin: 0;
  text-wrap: pretty;
  max-width: 720px;
}
.cs-role-sub {
  font-size: clamp(18px, 1.4vw, 22px);
  color: var(--ink-2);
  letter-spacing: -0.012em;
  margin: -16px 0 0;
  font-weight: 400;
}

.cs-prose {
  max-width: var(--maxw-prose);
}
.cs-prose p {
  font-size: 18px; line-height: 1.65;
  color: var(--ink); margin: 0 0 18px;
  letter-spacing: -0.005em;
}
.cs-prose p + p { color: var(--ink-2); }

/* Numbered + ticked lists */
.cs-list {
  list-style: none; padding: 0; margin: 0;
  max-width: var(--maxw-prose);
  display: flex; flex-direction: column;
}
.cs-list li {
  position: relative;
  padding: 18px 0 18px 36px;
  font-size: 18px; line-height: 1.5;
  color: var(--ink);
  border-top: .5px solid var(--line);
  letter-spacing: -0.005em;
}
.cs-list li:last-child { border-bottom: .5px solid var(--line); }
.cs-list--check li::before {
  content: "";
  position: absolute; left: 0; top: 26px;
  width: 16px; height: 10px;
  border-left: 1.5px solid var(--accent);
  border-bottom: 1.5px solid var(--accent);
  transform: rotate(-45deg);
}
.cs-list--num { counter-reset: cslist; }
.cs-list--num li {
  counter-increment: cslist;
  padding-left: 56px;
}
.cs-list--num li::before {
  content: counter(cslist, decimal-leading-zero);
  position: absolute; left: 0; top: 19px;
  font-family: var(--font-mono);
  font-size: 12px; color: var(--ink-3);
  letter-spacing: 0.06em;
}

/* Two-column lists (e.g. top vs low priorities) */
.cs-two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px;
  margin-top: 32px;
}
.cs-two-col-head {
  font-size: 19px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.015em;
  padding-bottom: 16px;
  margin: 0 0 0;
  border-bottom: .5px solid var(--line);
  text-transform: none;
  font-family: var(--font-sans);
}

/* 4-up numbered cause cards */
.cs-causes {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: .5px solid var(--line);
  border-bottom: .5px solid var(--line);
  margin-top: 32px;
}
.cs-cause {
  padding: 40px clamp(20px, 2.5vw, 32px);
  min-width: 0;
}
.cs-cause:first-child { padding-left: 0; }
.cs-cause:last-child { padding-right: 0; }
.cs-cause:not(:last-child) {
  border-right: .5px solid var(--line);
}
.cs-cause-num {
  font-family: var(--font-mono);
  font-size: 13px; color: var(--ink);
  letter-spacing: 0.06em;
  margin-bottom: 24px;
  font-weight: 500;
}
.cs-cause-title {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.3;
  margin: 0 0 8px;
}
.cs-cause-body {
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.5;
  letter-spacing: -0.005em;
}

/* Quick details/expandable */
.cs-method {
  border-top: .5px solid var(--line);
  padding: 0;
}
.cs-method:last-of-type { border-bottom: .5px solid var(--line); }
.cs-method-row {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 32px 0;
  cursor: pointer;
  user-select: none;
  transition: color .2s var(--ease);
  list-style: none;
}
.cs-method-row::-webkit-details-marker { display: none; }
.cs-method-num {
  font-family: var(--font-mono);
  font-size: 13px; color: var(--ink);
  letter-spacing: 0.06em;
  font-weight: 500;
}
.cs-method-title {
  font-size: clamp(20px, 1.8vw, 24px);
  font-weight: 500;
  letter-spacing: -0.018em;
  line-height: 1.2;
}
.cs-method-toggle {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: .5px solid var(--line-2);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--ink-2);
  font-size: 16px; line-height: 1;
  transition: transform .35s var(--ease), background .25s var(--ease), color .25s var(--ease);
}
details[open] .cs-method-toggle {
  background: var(--ink); color: var(--bg); border-color: var(--ink);
  transform: rotate(45deg);
}
.cs-method-body {
  padding: 0 0 40px 104px;
  max-width: 860px;
  display: grid; gap: 32px;
}
.cs-method-q {
  font-size: clamp(18px, 1.6vw, 22px);
  color: var(--ink);
  letter-spacing: -0.015em;
  line-height: 1.4;
  margin: 0;
  text-wrap: pretty;
}
.cs-method-q::before {
  content: "Q —";
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 8px;
}
.cs-method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 48px;
  padding-top: 24px;
  border-top: .5px solid var(--line);
}
.cs-method-grid h4 {
  font-size: 17px;
  color: var(--ink);
  letter-spacing: -0.012em;
  margin: 0 0 16px;
  font-weight: 500;
}
.cs-method-grid ul {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 10px;
  font-size: 15px; line-height: 1.45;
  color: var(--ink);
}

/* Big stat trio (Impact) */
.cs-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: .5px solid var(--line);
  border-bottom: .5px solid var(--line);
  margin-top: 8px;
}
.cs-stat {
  padding: 48px clamp(24px, 3vw, 48px);
  min-width: 0;
}
.cs-stat:first-child { padding-left: 0; }
.cs-stat:last-child { padding-right: 0; }
.cs-stat:not(:last-child) {
  border-right: .5px solid var(--line);
}
.cs-stat-num {
  font-size: clamp(56px, 7vw, 88px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1;
  margin: 0 0 16px;
  font-variant-numeric: tabular-nums;
}
.cs-stat-label {
  font-size: 16px;
  color: var(--ink);
  letter-spacing: -0.005em;
  margin: 0 0 12px;
  font-weight: 500;
}
.cs-stat-body {
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.5;
}

/* Figure */
.cs-figure {
  margin: 48px 0 0;
}
.cs-figure-media {
  aspect-ratio: 16/9;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: .5px solid var(--line);
  background: var(--bg-elev);
}
.cs-figure-caption {
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.5;
  max-width: 640px;
  letter-spacing: -0.005em;
}

/* Details panel for TLDR */
.cs-tldr-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 64px;
}
.cs-tldr-row {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 48px;
  padding-top: 40px;
  border-top: .5px solid var(--line);
}
.cs-tldr-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-top: 4px;
}
.cs-tldr-body { min-width: 0; }
.cs-tldr-body p { font-size: 18px; line-height: 1.6; color: var(--ink); margin: 0 0 14px; max-width: 640px; letter-spacing: -0.005em; }
.cs-tldr-body ul { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-direction: column; gap: 12px; }
.cs-tldr-body ul li {
  position: relative;
  padding-left: 24px;
  font-size: 17px; line-height: 1.5;
  color: var(--ink); letter-spacing: -0.005em;
}
.cs-tldr-body ul li::before {
  content: "—";
  position: absolute; left: 0; top: 0;
  color: var(--ink-3);
}

@media (max-width: 1199px) {
  .cs-two-col { grid-template-columns: 1fr; gap: 32px; }
  .cs-method-grid { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 809px) {
  .cs-causes { grid-template-columns: 1fr 1fr; }
  .cs-cause:nth-child(2) { border-right: 0; margin-right: 0; }
  .cs-cause:not(:last-child) { border-right: 0; margin-right: 0; border-bottom: .5px solid var(--line); }
  .cs-stats { grid-template-columns: 1fr; }
  .cs-stat:not(:last-child) { border-right: 0; margin-right: 0; border-bottom: .5px solid var(--line); padding-bottom: 32px; padding-right: 0; }
  .cs-stat { padding: 32px 0; }
  .cs-method-row { grid-template-columns: 60px 1fr auto; gap: 16px; padding: 24px 0; }
  .cs-method-body { padding-left: 0; }
  .cs-tldr-row { grid-template-columns: 1fr; gap: 16px; padding-top: 32px; }
}

/* ─── Case study page wrapper (wider full-screen layout) ─ */
.cs-page .container { max-width: 1440px; }
.cs-page .container.container--prose {
  max-width: calc(var(--maxw-prose) + var(--pad-page-x) * 2);
}

/* Hero — wide layout, two-column on big screens */
.cs-page .cs-hero {
  padding-top: clamp(48px, 7vh, 96px);
  padding-bottom: clamp(32px, 4vh, 56px);
}
.cs-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: clamp(48px, 8vw, 128px);
  align-items: end;
  margin-top: clamp(40px, 5vh, 72px);
}
.cs-hero-grid .cs-title { margin: 0; }
.cs-hero-grid .cs-lede {
  margin: 0;
  max-width: 420px;
  padding-bottom: clamp(8px, 1.5vw, 16px);
}
.cs-page .cs-hero-media { margin-top: clamp(48px, 6vh, 80px); margin-bottom: 0; }

/* Meta strip — full-width with hairline dividers between cells */
.cs-meta-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  padding: clamp(40px, 5vh, 56px) 0;
  margin-top: clamp(56px, 7vh, 96px);
  border-top: .5px solid var(--line);
  border-bottom: .5px solid var(--line);
}
.cs-meta-strip > div {
  padding: 0 clamp(20px, 2.5vw, 40px);
}
.cs-meta-strip > div:not(:first-child) { border-left: .5px solid var(--line); }
.cs-meta-strip > div:first-child { padding-left: 0; }
.cs-meta-strip > div:last-child { padding-right: 0; }
.cs-meta-strip .cs-meta-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
  font-weight: 500;
}
.cs-meta-strip .cs-meta-value {
  font-size: 17px;
  color: var(--ink);
  line-height: 1.45;
  letter-spacing: -0.008em;
}
@media (max-width: 1199px) {
  .cs-hero-grid { grid-template-columns: 1fr; gap: 32px; align-items: start; }
}
@media (max-width: 809px) {
  .cs-meta-strip { grid-template-columns: 1fr 1fr; gap: 0; }
  .cs-meta-strip > div { padding: 24px 16px; border-left: 0 !important; }
  .cs-meta-strip > div:nth-child(2n) { border-left: .5px solid var(--line) !important; }
  .cs-meta-strip > div:nth-child(3),
  .cs-meta-strip > div:nth-child(4) { border-top: .5px solid var(--line); }
  .cs-meta-strip > div:first-child { padding-left: 0; }
  .cs-meta-strip > div:nth-child(2) { padding-right: 0; }
  .cs-meta-strip > div:nth-child(3) { padding-left: 0; }
  .cs-meta-strip > div:last-child { padding-right: 0; }
}

/* ─── Case study page wrapper (wider full-screen layout) ─ */
.cs-page .container { max-width: 1440px; }
.cs-page .container.container--prose {
  max-width: calc(var(--maxw-prose) + var(--pad-page-x) * 2);
}

/* Hero — wide layout, two-column on big screens */
.cs-page .cs-hero {
  padding-top: clamp(48px, 7vh, 96px);
  padding-bottom: clamp(32px, 4vh, 56px);
}
.cs-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: clamp(48px, 8vw, 128px);
  align-items: end;
  margin-top: clamp(40px, 5vh, 72px);
}
.cs-hero-grid .cs-title { margin: 0; }
.cs-hero-grid .cs-lede {
  margin: 0;
  max-width: 460px;
  padding-bottom: clamp(8px, 1.5vw, 16px);
}
.cs-page .cs-hero-media { margin-top: clamp(48px, 6vh, 80px); margin-bottom: 0; }

/* Stronger dividers between sections */
.cs-page .cs-doc .cs-block + .cs-block {
  margin-top: clamp(120px, 16vh, 200px);
  padding-top: clamp(120px, 16vh, 200px);
  border-top: .5px solid var(--line);
}

/* TOC + document layout */
.cs-doc {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: clamp(64px, 8vw, 128px);
  align-items: start;
  padding-top: clamp(96px, 12vh, 160px);
}
.cs-doc-content { min-width: 0; }

/* Prose stays readable, displays bleed wider */
.cs-doc-content > .cs-block .cs-prose,
.cs-doc-content > .cs-block > .cs-prose,
.cs-doc-content .cs-block-head,
.cs-doc-content .cs-method-q,
.cs-doc-content > .cs-block > ul.cs-list:not(.cs-causes .cs-list) {
  max-width: 760px;
}
.cs-doc-content .cs-stats,
.cs-doc-content .cs-figure,
.cs-doc-content .cs-causes,
.cs-doc-content .cs-two-col,
.cs-doc-content .cs-method-grid,
.cs-doc-content .cs-tasks,
.cs-doc-content .cs-sus,
.cs-doc-content .cs-sentiment-bar,
.cs-doc-content .cs-tldr-grid {
  max-width: 100%;
}
.cs-toc-wrap {
  position: sticky;
  top: 88px;
  align-self: start;
}
.cs-toc-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 20px;
  padding-bottom: 14px;
  border-bottom: .5px solid var(--line);
  font-weight: 500;
}
.cs-toc {
  list-style: none;
  margin: 0; padding: 0;
  display: flex; flex-direction: column;
  gap: 0;
  max-height: calc(100vh - 200px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line-2) transparent;
}
.cs-toc::-webkit-scrollbar { width: 4px; }
.cs-toc::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 2px; }
.cs-toc li { margin: 0; list-style: none; }
.cs-toc a {
  display: flex; align-items: center; gap: 12px;
  font-size: 13.5px;
  color: var(--ink-3);
  letter-spacing: -0.005em;
  padding: 8px 0;
  transition: color .2s var(--ease);
  position: relative;
  line-height: 1.3;
}
.cs-toc a::before {
  content: "";
  width: 8px; height: 1px;
  background: currentColor;
  flex-shrink: 0;
  transition: width .25s var(--ease), background .25s var(--ease);
}
.cs-toc a:hover { color: var(--ink-2); }
.cs-toc a.active { color: var(--ink); font-weight: 500; }
.cs-toc a.active::before { width: 22px; background: var(--ink); }
.cs-toc-sub-list {
  list-style: none; margin: 0 0 6px; padding: 0 0 0 0;
  display: flex; flex-direction: column; gap: 0;
}
.cs-toc-sub-list a {
  padding: 5px 0 5px 22px;
  font-size: 12.5px;
}
.cs-toc-sub-list a::before { width: 6px; }
.cs-toc-sub-list a.active::before { width: 12px; }

/* Inside cs-doc, sections lose container behavior */
.cs-doc .cs-block { padding: 0; }
.cs-doc .cs-block + .cs-block {
  margin-top: clamp(96px, 14vh, 160px);
  padding-top: clamp(96px, 14vh, 160px);
  border-top: .5px solid var(--line);
}
.cs-doc .cs-block-head { margin-bottom: 48px; }

@media (max-width: 1199px) {
  .cs-doc { grid-template-columns: 1fr; gap: 0; }
  .cs-toc-wrap { display: none; }
}
.cs-next {
  margin-top: 120px;
  padding-top: 48px;
  border-top: .5px solid var(--line);
}
.cs-next-label { font-size: 13px; color: var(--ink-3); letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 16px; }

/* ─── Sentiment analysis bar ─────────────────────────── */
.cs-sentiment-bar {
  display: flex;
  height: 96px;
  border-radius: 12px;
  overflow: hidden;
  margin-top: 8px;
  border: .5px solid var(--line);
}
.cs-sentiment-seg {
  display: flex; flex-direction: column;
  justify-content: flex-end;
  padding: 16px 18px;
  min-width: 0;
  color: var(--bg);
  position: relative;
}
.cs-sentiment-seg--neg { background: var(--ink); }
.cs-sentiment-seg--pos { background: color-mix(in srgb, var(--ink) 55%, var(--bg)); }
.cs-sentiment-seg--neu {
  background: color-mix(in srgb, var(--ink) 16%, var(--bg));
  color: var(--ink);
}
.cs-sentiment-val {
  font-size: 22px; font-weight: 500;
  letter-spacing: -0.022em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.cs-sentiment-key {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.78;
  margin-top: 6px;
}

/* ─── Usability tasks ────────────────────────────────── */
.cs-tasks {
  display: flex; flex-direction: column;
  margin-top: 8px;
  border-top: .5px solid var(--line);
}
.cs-task {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 32px;
  padding: 32px 0;
  border-bottom: .5px solid var(--line);
  align-items: start;
}
.cs-task-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  letter-spacing: 0.06em;
  font-weight: 500;
  padding-top: 4px;
}
.cs-task-title {
  font-size: 19px; font-weight: 500;
  letter-spacing: -0.015em;
  margin: 0 0 18px;
  line-height: 1.25;
}
.cs-task-stats {
  display: flex; gap: 48px; flex-wrap: wrap;
  margin-bottom: 14px;
}
.cs-task-stat-val {
  display: block;
  font-size: 22px; font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.cs-task-stat-label {
  display: block;
  font-size: 12.5px;
  color: var(--ink-3);
  letter-spacing: 0.02em;
  margin-top: 4px;
}
.cs-task-obs {
  font-size: 15.5px;
  color: var(--ink-2);
  line-height: 1.55;
  margin: 0;
  max-width: 640px;
}

/* ─── SUS callout ────────────────────────────────────── */
.cs-sus {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  padding: 48px 0;
  border-top: .5px solid var(--line);
  border-bottom: .5px solid var(--line);
}
.cs-sus-num {
  font-size: clamp(64px, 8vw, 96px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.cs-sus-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
  font-weight: 500;
}
.cs-sus-body p {
  font-size: 17px;
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.005em;
  line-height: 1.45;
}

/* ─── Inline link ────────────────────────────────────── */
.cs-link-inline {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13.5px;
  color: var(--ink);
  border-bottom: .5px solid var(--line-2);
  padding-bottom: 4px;
  align-self: flex-start;
  transition: border-color .2s var(--ease);
  text-decoration: none;
}
.cs-link-inline:hover { border-bottom-color: var(--ink); }

/* ─── Quote list ─────────────────────────────────────── */
.cs-quotes { display: flex !important; flex-direction: column; gap: 14px !important; margin: 0; padding: 0; list-style: none; }
.cs-quotes li {
  position: relative;
  padding-left: 18px;
  font-style: italic;
  color: var(--ink);
  font-size: 15.5px;
  line-height: 1.5;
  letter-spacing: -0.003em;
}
.cs-quotes li::before {
  content: "";
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 2px;
  background: var(--ink);
}

@media (max-width: 809px) {
  .cs-sentiment-bar { flex-direction: column; height: auto; }
  .cs-sus { grid-template-columns: 1fr; gap: 20px; }
  .cs-task { grid-template-columns: 40px 1fr; gap: 16px; }
  .cs-task-stats { gap: 28px; }
}
.cs-next-link {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: clamp(28px, 3.6vw, 48px);
  font-weight: 500;
  letter-spacing: -0.03em;
  padding: 24px 0;
  transition: opacity .2s var(--ease);
}
.cs-next-link:hover { opacity: .6; }
.cs-next-link .arrow { font-size: 0.6em; transition: transform .3s var(--ease); }
.cs-next-link:hover .arrow { transform: translateX(8px); }

/* ─── Back to top button ─────────────────────────────────────── */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 60;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--bg);
  border: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity .22s var(--ease), transform .22s var(--ease), background .15s var(--ease);
  box-shadow: 0 6px 18px rgba(0,0,0,.18);
  padding: 0;
}
.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover {
  background: oklch(0.22 0 0);
}
.back-to-top svg {
  width: 18px;
  height: 18px;
}
@media (max-width: 1199px) {
  .back-to-top {
    right: 16px;
  }
}

@media (max-width: 809px) {
  .cs-meta { grid-template-columns: 1fr 1fr; gap: 24px; }
  .cs-image-grid { grid-template-columns: 1fr; }
  .cs-numbers { grid-template-columns: 1fr; gap: 32px; padding: 32px 0; }
}

/* ═══ Creative homepage demo theme — warm paper + terracotta (from hero photo) ═══ */
:root {
  --bg: #f6f4ef; --bg-elev: #fbfaf7; --paper-2: #f0ede6;
  --ink: #1a1613; --ink-2: #4a443c; --ink-3: #6b6459; --ink-4: #a49b8d;
  --line: #e2dcd2; --line-2: #d3cabb;
  --accent: #c1440e;
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Archivo", system-ui, sans-serif;
}
body { font-family: var(--font-sans) !important; }
.hero-display, .sec-head-title, .work-card-title,
.footer-cta, h1, h2, h3, h4 { font-family: "Archivo", system-ui, sans-serif !important; }
.hero-role, .hero-sub, .about-body p { font-family: var(--font-sans) !important; }
.hero-display { font-weight: 700; letter-spacing: -0.04em; }
.sec-head-title, .work-card-title { font-weight: 600; letter-spacing: -0.03em; }
/* accent moments */
.hero-role { color: var(--accent); }
.hero-meta .sq { background: var(--accent); }
.nav-links a:hover { color: var(--accent); }
.work-card-cta { color: var(--ink); transition: color .25s var(--ease); }
.work-card:hover .work-card-cta { color: var(--accent); }
.work-card-metric-value { color: var(--accent); }
.sec-head-num { color: var(--accent); }
.exp-year { color: var(--accent); }
.about-resume-link { color: var(--accent); }
.hero-keywords li { transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease); }
.hero-keywords li::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--ink-4); flex: none;
  transition: background .2s var(--ease), transform .2s var(--ease);
}
.hero-keywords li:nth-child(-n+3) {
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  border-color: color-mix(in srgb, var(--accent) 22%, var(--line));
  color: var(--ink);
}
.hero-keywords li:nth-child(-n+3)::before { background: var(--accent); }
.hero-keywords li:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-2px); }
.hero-keywords li:hover::before { background: var(--accent); transform: scale(1.3); }
.work-card-media img { transition: transform .7s var(--ease); }
.work-card:hover .work-card-media img { transform: scale(1.035); }
.tandem-tcard { transition: transform .7s var(--ease); }
.work-card:hover .tandem-tcard { transform: scale(1.035); }
.work-list--split .work-card-media img { border: 1px solid var(--line); }
.nav-logo { border-radius: 0; border: 0; background: none; }