/* =========================================================
   DAVID YE — PORTFOLIO
   1. Tokens        2. Reset & base      3. Utilities
   4. Nav           5. Hero              6. Work index
   7. About         8. Contact           9. Footer
   10. Case-study stubs                  11. Motion & queries
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  /* light-only site: opt out of forced/auto dark repainting */
  color-scheme: only light;

  /* palette — no pure white, no pure black */
  --bg:        #EFECE7;   /* warm paper */
  --bg-deep:   #EBEAE5;   /* recessed surfaces */
  --ink:       #333333;
  --ink-soft:  #6B6963;
  --rule:      #D9D7D1;   /* hairlines */
  --accent:    #9A3B26;   /* oxide red — the single accent */

  /* legacy hero palette (preserved from previous site) */
  --hero-a: #8E6C68;      /* warm rose-brown, gradient start */
  --hero-b: #A9856F;      /* warm tan, gradient end */
  --ease-out: cubic-bezier(.16, 1, .3, 1);

  /* semantic type scale: each role has one fluid source of truth */
  --type-caption:  clamp(0.75rem, 0.73rem + 0.08vw, 0.8125rem);
  --type-label:    clamp(0.8125rem, 0.78rem + 0.12vw, 0.875rem);
  --type-body:     clamp(1rem, 0.97rem + 0.14vw, 1.075rem);
  --type-subtitle: clamp(1.125rem, 1.04rem + 0.38vw, 1.35rem);
  --type-heading:  clamp(1.625rem, 1.38rem + 1.05vw, 2.25rem);
  --type-display:  clamp(2.625rem, 1.85rem + 3.7vw, 5.5rem);
  --type-hero:     clamp(2.5rem, 1.85rem + 3.2vw, 4.8rem);

  /* spacing */
  --space-2xs: 0.5rem;
  --space-xs:  0.75rem;
  --space-s:   1rem;
  --space-m:   1.5rem;
  --space-l:   2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6.5rem;
  --space-3xl: 10rem;

  --gutter: clamp(1.25rem, 5vw, 4.5rem);
  --measure: 34em;
}

/* ---------- 2. Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-family-sans);
  font-size: var(--type-body);
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.case-study-page {
  --case-content-width: 64rem;
  --case-section-space: clamp(4.5rem, 8vw, 7.5rem);
  --case-heading-gap: clamp(1.5rem, 3vw, 2.5rem);
  background-color: var(--bg);
  background-image: radial-gradient(
    circle,
    rgba(77, 74, 71, 0.12) 0,
    rgba(77, 74, 71, 0.12) calc(100vh / 1800),
    transparent calc(100vh / 424)
  );
  background-size: calc(100vh / 36) calc(100vh / 36);
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration-color: var(--rule); text-underline-offset: 0.2em; }
a:hover { text-decoration-color: var(--accent); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 1px;
}

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

h1, h2, h3 {
  font-family: var(--font-family-sans);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

strong { font-weight: 650; }

/* fluid canvas — fixed behind everything; gradient doubles as
   the no-WebGL fallback, tuned to the shader's backdrop */
#fluid {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  display: block;
  pointer-events: none;
  background: radial-gradient(120% 90% at 70% 10%, #F6F5F1 0%, #ECEAE4 60%, #E7E5DF 100%);
}

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -3rem;
  z-index: 10;
  background: var(--ink);
  color: var(--bg);
  padding: 0.5em 1em;
  font-family: var(--font-family-sans);
  font-size: var(--type-caption);
  text-decoration: none;
  transition: top 0.15s ease;
}
.skip-link:focus { top: var(--space-s); }

/* ---------- 3. Utilities ---------- */
.container {
  max-width: 90rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.label {
  font-family: var(--font-family-sans);
  font-size: var(--type-label);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
}

.sec-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-m);
  border-top: 1px solid var(--rule);
  padding-top: var(--space-s);
  margin-bottom: var(--space-xl);
}

section { padding-block: var(--space-2xl) 0; }

#work .sec-head {
  border-top: 0;
  padding-top: clamp(1rem, 2vw, 1.5rem);
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

/* ---------- 4a. Fixed nav on index (preserved from previous site) ---------- */
#nav {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  display: flex;
  width: 68px;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 25px 12px 18px;
  border-right: 1px solid var(--rule);
  background: rgba(243, 242, 239, 0.38);
  transition: background 0.4s, backdrop-filter 0.4s, padding 0.4s;
}

#nav.scrolled {
  padding: 25px 12px 18px;
  background: rgba(243, 242, 239, 0.7);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.logo {
  width: 2.25rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  text-decoration: none;
}

.logo img {
  width: 1.625rem;
  height: 2rem;
  display: block;
}

.nav-links {
  display: none;
  gap: 36px;
  align-items: center;
}

.rail-links {
  display: grid;
  gap: 0.5rem;
  margin-top: auto;
  margin-bottom: 1.4rem;
}

.rail-links a {
  width: 2.25rem;
  height: 2.25rem;
  display: grid;
  place-items: center;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}

.rail-links a:hover {
  color: var(--accent);
  transform: translateY(-1px);
}

.rail-links svg {
  width: 1.125rem;
  height: 1.125rem;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.rail-links .icon-fill {
  fill: currentColor;
  stroke: none;
}

.rail-year {
  font-family: var(--font-family-sans);
  font-size: 0.58rem;
  color: var(--ink-soft);
  white-space: nowrap;
}

main, .fluid-controls, .site-footer { margin-left: 68px; }

.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-family: var(--font-family-sans);
  font-size: var(--type-caption);
  letter-spacing: 0.06em;
  transition: color 0.3s;
}

.nav-links a:not(.btn):hover { color: var(--hero-a); }

#nav .btn { padding: 10px 22px; font-size: var(--type-caption); }

@media (max-width: 760px) {
  .nav-links a:not(.btn) { display: none; }
}

/* ---------- 5. Hero (preserved from previous site) ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  padding-top: clamp(104px, 12vh, 150px);
  padding-bottom: clamp(108px, 14vh, 160px);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(220px, 24vw, 340px);
  gap: clamp(28px, 3.5vw, 56px);
  align-items: center;
  min-height: calc(100svh - clamp(104px, 12vh, 150px) - clamp(108px, 14vh, 160px));
}

.hero-text {
  max-width: min(900px, 100%);
  min-width: 0;
  font-family: var(--font-family-sans);
}

.hero h1 {
  font-family: var(--font-family-sans);
  color: var(--ink);
  opacity: 1;
  visibility: visible;
  font-size: var(--type-hero);
  line-height: 1.03;
  font-weight: 600;
  letter-spacing: -0.04em;
  max-width: min(1040px, 100%);
}

.hero-headline-line {
  display: block;
}

.hero h1 .grad {
  font-style: normal;
  background: linear-gradient(110deg, var(--hero-a) 10%, var(--hero-b) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  max-width: min(62ch, 100%);
  margin-top: clamp(24px, 3vw, 36px);
  font-size: var(--type-subtitle);
  line-height: 1.58;
  color: var(--ink-soft);
  font-weight: 400;
  opacity: 1;
  visibility: visible;
}

.hero-sub strong {
  color: var(--ink);
  font-weight: 650;
  background: linear-gradient(
    to top,
    rgba(142, 108, 104, 0.18) 0%,
    rgba(142, 108, 104, 0.18) 42%,
    transparent 42%
  );
  padding: 0 0.08em;
  border-radius: 4px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.hero-cta {
  display: flex;
  gap: clamp(12px, 2vw, 18px);
  margin-top: clamp(32px, 4vw, 44px);
  flex-wrap: wrap;
  opacity: 0;
  animation: rise 0.65s var(--ease-out) 0.65s forwards;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(26px); }
  to   { opacity: 1; transform: none; }
}

/* shared pill buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 100px;
  font-family: var(--font-family-sans);
  font-weight: 600;
  font-size: var(--type-label);
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: transform 0.2s var(--ease-out), box-shadow 0.3s;
}

.btn-fill {
  background: linear-gradient(120deg, var(--hero-a), var(--hero-b));
  color: #FBFAF6;
}
.btn-fill:hover { box-shadow: 0 0 42px rgba(142, 108, 104, 0.38); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid rgba(42, 39, 34, 0.28);
}
.btn-ghost:hover { border-color: var(--hero-a); color: var(--hero-a); }

.arr { transition: transform 0.3s var(--ease-out); }
.btn:hover .arr { transform: translateX(5px); }

/* circular portrait with rotating dashed ring */
.hero-photo-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-photo-frame {
  position: relative;
  width: min(100%, clamp(200px, 23vw, 340px));
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  margin-left: auto;
  margin-right: clamp(0px, 1vw, 10px);
}

.hero-photo-frame::before {
  content: '';
  position: absolute;
  inset: 10%;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.65), rgba(142, 108, 104, 0.08) 55%, transparent 58%);
  z-index: -1;
}

.hero-photo-frame::after {
  content: '';
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  border: 2px dashed rgba(42, 39, 34, 0.22);
  pointer-events: none;
  animation: ring-spin 58s linear infinite;
}

@keyframes ring-spin { to { transform: rotate(360deg); } }

.hero-photo {
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 50%;
  filter: grayscale(12%);
  box-shadow: 0 26px 60px rgba(42, 39, 34, 0.12);
  transition: transform 0.45s var(--ease-out), filter 0.4s;
}
.hero-photo:hover { transform: scale(1.02); filter: grayscale(6%); }

/* scroll cue */
.scroll-cue {
  position: absolute;
  bottom: 40px;
  left: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--ink-soft);
  font-family: var(--font-family-sans);
  font-size: var(--type-caption);
  letter-spacing: 0.12em;
  line-height: 1;
  text-transform: uppercase;
  text-decoration: none;
  transform: translateX(-50%);
  transition: color 0.2s ease;
}

.scroll-cue:hover { color: var(--accent); }

.scroll-cue span {
  margin-top: 0.35rem;
  color: var(--hero-a);
  font-family: var(--font-family-sans);
  font-size: 1.4rem;
  letter-spacing: 0;
}

/* ---------- 6. Work index ---------- */
.work-list {
  --work-gap: clamp(1.5rem, 3vw, 3.5rem);
  list-style: none;
  display: grid;
  gap: 0;
}

.work-item {
  border-top: 1px solid var(--rule);
}

.work-item:last-child {
  border-bottom: 1px solid var(--rule);
}

.work-row {
  display: grid;
  grid-template-columns: minmax(15rem, 0.28fr) minmax(0, 0.72fr);
  gap: var(--work-gap);
  align-items: center;
  padding-block: clamp(2rem, 4vw, 3.75rem);
}

.work-row--media-left {
  grid-template-columns: minmax(0, 0.72fr) minmax(15rem, 0.28fr);
}

.work-row--media-left .work-media { order: 1; }
.work-row--media-left .work-copy { order: 2; }

.work-copy {
  max-width: 30rem;
}

.work-category {
  font-family: var(--font-family-sans);
  font-size: var(--type-label);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-soft);
  margin-top: 0.75rem;
  margin-bottom: 0;
}

.work-name {
  font-family: var(--font-family-sans);
  font-size: var(--type-display);
  font-weight: 450;
  letter-spacing: -0.045em;
  line-height: 1;
  text-transform: uppercase;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.work-desc {
  margin-top: clamp(1.1rem, 2vw, 1.6rem);
  color: var(--ink-soft);
  max-width: 31rem;
  font-size: var(--type-caption);
  line-height: 1.55;
}

.work-facts {
  display: grid;
  gap: 0.875rem;
  margin-top: 1.75rem;
}

.work-facts div {
  display: grid;
  grid-template-columns: 4.75rem minmax(0, 1fr);
  column-gap: 1.25rem;
  align-items: baseline;
  line-height: 1.4;
}

.work-facts dt {
  color: var(--ink-soft);
  font-family: var(--font-family-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.work-facts dd {
  color: var(--ink);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  font-weight: 500;
}

.work-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem 1rem;
  margin-top: clamp(1.25rem, 2.5vw, 1.8rem);
  font-family: var(--font-family-sans);
  font-size: var(--type-caption);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.work-meta span + span {
  border-left: 1px solid var(--rule);
  padding-left: 1rem;
}

.work-cta {
  margin-top: clamp(1.25rem, 2.4vw, 1.75rem);
}

.work-media {
  position: relative;
  display: block;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid rgba(42, 39, 34, 0);
  background: transparent;
  box-shadow: none;
}

.work-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s var(--ease-out);
}

.work-media:hover img,
.work-media:focus-visible img { transform: scale(1.012); }

#work {
  padding-top: clamp(72px, 8vw, 120px);
}

/* ---------- 7. About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: var(--space-2xl);
  align-items: start;
}

.about-body > p + p { margin-top: var(--space-m); }
.about-body p {
  max-width: var(--measure);
  font-size: calc(var(--type-body) + 2px);
  line-height: 1.58;
}
.about-body strong { font-weight: 650; }

.about-exploring {
  max-width: 30rem;
  margin-top: var(--space-l);
}

.about-exploring .label {
  display: block;
  margin-bottom: var(--space-xs);
  color: var(--ink);
  font-size: var(--type-caption);
  font-weight: 700;
}

.about-exploring .side-list {
  display: grid;
  gap: 0.625rem;
  border-top: 0;
}

.about-exploring .side-list li {
  justify-content: flex-start;
  align-items: center;
  gap: 0.75rem;
  padding: 0;
  border-bottom: 0;
  color: var(--ink-soft);
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.45;
}

.about-exploring .side-list li::before {
  content: '';
  width: 0.3rem;
  height: 0.3rem;
  flex: none;
  border-radius: 50%;
  background: var(--hero-a);
}

.side-list {
  list-style: none;
  border-top: 1px solid var(--rule);
}

.side-list li {
  display: flex;
  justify-content: space-between;
  gap: var(--space-s);
  padding-block: var(--space-xs);
  border-bottom: 1px solid var(--rule);
  font-size: var(--type-body);
}

.side-list .when {
  font-family: var(--font-family-sans);
  font-size: var(--type-caption);
  color: var(--ink-soft);
  flex: none;
}

.about-side .label { display: block; margin-bottom: var(--space-s); font-weight: 700; }
.about-side .side-group + .side-group { margin-top: var(--space-l); }

/* ---------- 8. Contact ---------- */
.contact { padding-bottom: var(--space-2xl); }

.contact-statement {
  font-family: var(--font-family-sans);
  font-size: var(--type-display);
  font-weight: 550;
  line-height: 1.05;
  letter-spacing: -0.025em;
  max-width: 13em;
  text-wrap: balance;
}

.contact-statement-line {
  display: block;
}

.contact-mail {
  display: inline-block;
  margin-top: var(--space-xl);
  font-family: var(--font-family-sans);
  font-size: var(--type-heading);
  font-weight: 500;
  letter-spacing: -0.02em;
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 0.1em;
}
.contact-mail:hover { color: var(--accent); border-color: var(--accent); }

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-l);
  margin-top: var(--space-xl);
  list-style: none;
}

.contact-links a {
  font-family: var(--font-family-sans);
  font-size: var(--type-caption);
  letter-spacing: 0.10em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
}
.contact-links a:hover { color: var(--accent); }

/* ---------- 9. Footer ---------- */
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-m);
  flex-wrap: wrap;
  border-top: 1px solid var(--rule);
  padding: var(--space-m) var(--gutter) var(--space-l);
  max-width: 90rem;
  margin-inline: auto;
}

@media (min-width: 761px) {
  .site-footer {
    width: calc(100% - 68px);
    margin-left: 68px;
    margin-right: 0;
  }
}

.site-footer, .site-footer a {
  font-family: var(--font-family-sans);
  font-size: var(--type-caption);
  color: var(--ink-soft);
  text-decoration: none;
}
.site-footer a:hover { color: var(--accent); }

/* ---------- 10. Case-study stubs ---------- */
.case-study-page .stub-main {
  max-width: calc(var(--case-content-width) + var(--gutter) + var(--gutter));
  padding-top: clamp(9rem, 16vw, 12rem);
  padding-bottom: var(--space-2xl);
}

.stub-main .label { display: block; margin-bottom: var(--space-m); font-weight: 700; }

.stub-main h1 {
  font-size: var(--type-display);
  font-weight: 550;
  max-width: 12em;
}

.case-study-page .stub-main h1 { max-width: none; }

.stub-meta-line {
  margin-block: var(--space-m) var(--space-xl);
  font-size: var(--type-caption);
  color: var(--ink-soft);
}

.stub-main > .sec-head {
  margin-bottom: var(--space-m);
  padding-top: 0;
  border-top: 0;
}

.stub-main > .sec-head .label,
.stub-main > .sec-head .stub-meta-line {
  margin: 0;
}

.stub-lede-image {
  width: 100%;
  justify-self: end;
  border-radius: 0.4rem;
}

.page-section {
  margin-top: var(--case-section-space);
}

.stub-main > h1 + .page-section {
  margin-top: var(--space-m);
}

.page-section > p {
  line-height: 1.65;
}

.page-section > p + p {
  margin-top: clamp(1.25rem, 2vw, 1.75rem);
}

.case-story {
  margin-top: var(--case-section-space);
  width: 100%;
  border-top: 1px solid rgba(77, 74, 71, 0.18);
  padding-top: var(--case-heading-gap);
}

.case-story > h2 {
  font-size: var(--type-heading);
  margin-bottom: var(--case-heading-gap);
}

.story-summary {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
  padding-block: 0;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2.5vw, 2rem);
}

.summary-column {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 0.5rem;
  align-items: start;
  max-width: 100%;
  line-height: 1.65;
  text-wrap: pretty;
}

.summary-link {
  color: var(--accent);
  font-family: var(--font-family-sans);
  font-size: var(--type-body);
  font-weight: 650;
  letter-spacing: normal;
  line-height: 1.5;
  text-transform: none;
}

.summary-copy {
  margin: 0;
  font-size: var(--type-body);
  line-height: 1.6;
  text-wrap: balance;
}

.metric-card {
  padding: clamp(1.25rem, 3vw, 2rem);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.42);
  box-shadow: 0 2px 8px rgba(20, 20, 20, 0.06);
}

.metric-value {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-family-sans);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 650;
  letter-spacing: -0.06em;
  line-height: 0.95;
  white-space: nowrap;
}

.metric-icon {
  display: inline-block;
  font-size: 0.52em;
  vertical-align: 0.12em;
}

.text-positive {
  color: #2E7D32;
}

.text-accent {
  color: var(--accent);
  font-weight: 500;
}

.metric-copy {
  max-width: 24ch;
  margin: 0.9rem 0 0;
  color: var(--ink-soft);
}

.story-summary .label {
  margin-bottom: var(--space-xs);
}

.story-summary-item > ul,
.story-row-body > ul {
  display: grid;
  gap: 0.35rem;
  padding-left: 1.25em;
  list-style: disc;
  line-height: 1.65;
}

.case-story .story-summary p {
  line-height: 1.6;
}

/* Hanging-indent story rows: eyebrow label in a narrow left column,
   copy at a constrained measure on the right, wide artifacts span both. */
.story-row {
  display: grid;
  grid-template-columns: minmax(8rem, 13rem) minmax(0, 1fr);
  column-gap: clamp(var(--space-l), 5vw, var(--space-xl));
  row-gap: var(--space-m);
  align-items: start;
}

.story-row > .label {
  margin: 0;
  font-size: var(--type-label);
  color: var(--ink-soft);
  padding-top: 0.5em; /* optical alignment with the first body line */
}

.story-row-body {
  max-width: var(--measure);
}

.story-row-title {
  font-size: var(--type-subtitle);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: var(--space-s);
  text-wrap: balance;
}

.story-row > .story-row-full {
  grid-column: 1 / -1;
  width: 100%;
}

/* Bug pile — UAT screenshots dropped onto a desk, one by one.
   Trigger: the shared .reveal observer adds .is-visible; everything
   else is CSS. Per-shot vars: --x/--y/--r = resting offset & tilt,
   --fx/--fy/--fr = fly-in origin, --i = drop order. */
.bug-pile {
  position: relative;
  max-width: 860px;
  aspect-ratio: 5 / 3.4;
  margin-top: var(--space-m);
}

.bug-pile.reveal { opacity: 1; transform: none; }

.bug-shot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(74%, 600px);
  border-radius: 0.4rem;
  box-shadow: 0 22px 44px rgba(20, 20, 20, 0.16), 0 3px 8px rgba(20, 20, 20, 0.08);
  opacity: 0;
  transform: translate(-50%, -50%) translate(var(--fx), var(--fy)) rotate(var(--fr)) scale(1.14);
  transition:
    transform 0.55s cubic-bezier(0.16, 0.84, 0.26, 1) calc(var(--i) * 0.22s),
    opacity 0.28s ease calc(var(--i) * 0.22s);
}

.bug-pile.is-visible .bug-shot {
  opacity: 1;
  transform: translate(-50%, -50%) translate(var(--x), var(--y)) rotate(var(--r)) scale(1);
}

.bug-shot:nth-child(1) { --i: 0; --x: -7%;  --y: -8%;  --r: -5.5deg; --fx: 52%;  --fy: -34%; --fr: 6deg; }
.bug-shot:nth-child(2) { --i: 1; --x: 6%;   --y: -4%;  --r: 4deg;    --fx: 44%;  --fy: 26%;  --fr: -7deg; }
.bug-shot:nth-child(3) { --i: 2; --x: -4%;  --y: 7%;   --r: 2.5deg;  --fx: 58%;  --fy: -12%; --fr: 9deg; }
.bug-shot:nth-child(4) { --i: 3; --x: 8%;   --y: 5%;   --r: -3deg;   --fx: 38%;  --fy: 38%;  --fr: -5deg; }
.bug-shot:nth-child(5) { --i: 4; --x: -9%;  --y: 1%;   --r: 6deg;    --fx: 50%;  --fy: -28%; --fr: -8deg; }
.bug-shot:nth-child(6) { --i: 5; --x: 3%;   --y: -7%;  --r: -6.5deg; --fx: 60%;  --fy: 14%;  --fr: 7deg; }
.bug-shot:nth-child(7) { --i: 6; --x: 7%;   --y: 8%;   --r: 5deg;    --fx: 42%;  --fy: -40%; --fr: -4deg; }
.bug-shot:nth-child(8) { --i: 7; --x: -5%;  --y: -2%;  --r: -2deg;   --fx: 54%;  --fy: 30%;  --fr: 8deg; }
.bug-shot:nth-child(9) { --i: 8; --x: 1%;   --y: 3%;   --r: 3.5deg;  --fx: 48%;  --fy: -20%; --fr: -6deg; }

.bug-pile-badge {
  position: absolute;
  top: 50%;
  left: 50%;
  margin: 0;
  padding: 0.45em 0.9em;
  border-radius: 0.55em;
  background: #F6BDB4;
  color: #A32C1E;
  font-family: var(--font-family-sans);
  font-size: clamp(1.5rem, 3.4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
  box-shadow: 0 10px 26px rgba(163, 44, 30, 0.22);
  opacity: 0;
  transform: translate(-50%, -50%) rotate(-2deg) scale(0.8);
  transition:
    transform 0.4s cubic-bezier(0.2, 0.9, 0.3, 1.35) 1.5s,
    opacity 0.3s ease 1.5s;
}

.bug-pile.is-visible .bug-pile-badge {
  opacity: 1;
  transform: translate(-50%, -50%) rotate(-2deg) scale(1);
}

/* ---------- 11. Motion & queries ---------- */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .bug-shot, .bug-pile-badge { transition: none; }
  .work-media, .work-cta span { transition: none; }
  .work-cta:hover span,
  .work-cta:focus-visible span { transform: none; }
  .hero-sub, .hero-cta, .scroll-cue { animation: none; opacity: 1; }
  .hero-photo-frame::after { animation: none; }
  .hero-photo:hover { transform: none; }
  .work-media:hover img,
  .work-media:focus-visible img { transform: none; }
}

@media (max-width: 760px) {
  #nav,
  #nav.scrolled {
    top: 0;
    right: 0;
    bottom: auto;
    width: auto;
    height: 64px;
    flex-direction: row;
    padding: 12px var(--gutter);
    border-right: 0;
    border-bottom: 1px solid transparent;
  }

  #nav.scrolled { border-bottom-color: var(--rule); }
  .rail-links, .rail-year { display: none; }
  .nav-links { display: flex; gap: 0; }
  .nav-links a:not(.btn) { display: none; }
  #nav .btn { padding: 8px 16px; }
  main, .fluid-controls, .site-footer { margin-left: 0; }
}

@media (max-width: 980px) {
  .hero-layout { grid-template-columns: 1fr; gap: clamp(34px, 6vw, 52px); }
  .hero-text { max-width: 100%; }
  .hero-photo-wrap { order: -1; justify-content: center; }
  .hero-photo-frame { width: min(300px, 68vw); margin: 0 auto; }
  .hero h1 { max-width: 100%; }
}

@media (max-width: 640px) {
  .hero { min-height: auto; padding-top: 96px; padding-bottom: 64px; }
  .hero h1 { line-height: 1.04; letter-spacing: -0.05em; }
  .hero-sub { margin-top: 24px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { justify-content: center; width: 100%; }
  .scroll-cue { display: none; }
}

@media (max-width: 700px) {
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .metric-card {
    display: grid;
    grid-template-columns: minmax(8rem, auto) 1fr;
    gap: 1rem;
    align-items: center;
  }

  .metric-copy {
    margin-top: 0;
  }
}

@media (max-width: 56rem) {
  .story-row {
    grid-template-columns: 1fr;
    row-gap: var(--space-xs);
  }
  .story-row > .label { padding-top: 0; }
  .story-row-body { max-width: none; }
}

@media (max-width: 64rem) {
  .work-row,
  .work-row--media-left {
    grid-template-columns: 1fr;
    gap: clamp(1.25rem, 3vw, 2rem);
    align-items: start;
  }
  .work-row--media-left .work-copy { order: 1; }
  .work-row--media-left .work-media { order: 2; }
  .work-copy { max-width: 38rem; }
  .work-row { min-height: auto; padding-block: clamp(3.25rem, 9vw, 5rem); }

  .about-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .about-side { max-width: 24rem; }

  .story-summary-item + .story-summary-item {
    padding-top: var(--space-l);
  }
}

@media (max-width: 36rem) {
  .sec-head { flex-direction: column; }
}

/* ---------- 12. ROME case study ---------- */
.rome-case {
  background-color: var(--semantic-color-surface-page);
  color: var(--semantic-color-text-primary);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-body);
  line-height: var(--font-line-height-body);
}

.rome-case #nav {
  position: absolute;
  inset: 0 0 auto;
  width: min(100% - (2 * var(--semantic-layout-gutter)), var(--size-container));
  height: var(--component-navigation-height);
  margin-inline: auto;
  padding: 0;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  border: 0;
  border-bottom: var(--border-default) solid var(--semantic-color-border);
  background: transparent;
}

.rome-case #nav.scrolled {
  padding: 0;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.rome-case #nav .logo {
  width: auto;
  height: auto;
  color: var(--semantic-color-text-primary);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--font-letter-spacing-label);
}

.rome-case #nav .nav-links {
  display: flex;
  gap: var(--component-navigation-link-gap);
}

.rome-case #nav .nav-links a {
  color: var(--component-navigation-link-text);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-small);
  letter-spacing: 0;
  text-transform: uppercase;
}

.rome-case #nav .nav-links a:hover {
  color: var(--component-navigation-link-text-hover);
}

.rome-main {
  width: min(100%, var(--size-container));
  margin: 0 auto;
  padding: calc(var(--component-navigation-height) + var(--space-10)) var(--semantic-layout-gutter) var(--space-11);
}

.rome-main section,
.rome-main article {
  padding: 0;
}

.rome-eyebrow {
  margin: 0 0 var(--space-5);
  color: var(--semantic-color-accent);
  font-size: var(--semantic-typography-label-font-size);
  font-weight: var(--semantic-typography-label-font-weight);
  line-height: var(--semantic-typography-label-line-height);
  letter-spacing: var(--semantic-typography-label-letter-spacing);
  text-transform: uppercase;
}

.rome-overview {
  display: grid;
  grid-template-columns: minmax(32rem, 1.15fr) minmax(26rem, 1fr);
  gap: var(--space-8);
  align-items: start;
}

.rome-overview-media {
  margin-top: var(--space-7);
  width: calc(100% + var(--semantic-layout-gutter));
  overflow: hidden;
}

.rome-overview-media.vime-overview-media {
  width: 75%;
  justify-self: center;
}

.rome-overview h1 {
  margin: 0 0 var(--space-6);
  color: var(--semantic-color-text-primary);
  font-family: var(--font-family-sans);
  font-size: var(--semantic-typography-display-font-size);
  font-weight: var(--semantic-typography-display-font-weight);
  line-height: var(--semantic-typography-display-line-height);
  letter-spacing: var(--semantic-typography-display-letter-spacing);
}

.rome-prose {
  max-width: var(--size-prose);
}

.rome-prose p + p {
  margin-top: var(--space-5);
}

.rome-prose .rome-subheading {
  margin-top: var(--space-7);
  margin-bottom: var(--space-4);
  color: var(--semantic-color-text-secondary);
}

.rome-prose .rome-subheading + p {
  margin-top: 0;
}

.rome-role {
  margin-top: var(--space-7);
}

.rome-role .rome-eyebrow {
  margin-bottom: var(--space-2);
  color: var(--semantic-color-text-secondary);
}

.rome-role > p:last-child {
  color: var(--semantic-color-text-secondary);
  font-size: var(--font-size-small);
  text-transform: uppercase;
}

.rome-overview-media img,
.rome-wide-media img,
.rome-media-pair img {
  width: 100%;
  height: auto;
}

.rome-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-10);
}

.rome-metrics div {
  display: grid;
  gap: var(--space-2);
}

.rome-metrics strong {
  color: var(--semantic-color-accent);
  font-size: clamp(var(--font-size-h3), 3.5vw, var(--font-size-h1));
  font-weight: var(--font-weight-semibold);
  line-height: var(--font-line-height-compact);
  letter-spacing: var(--font-letter-spacing-heading);
}

.rome-metrics span {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-semibold);
}

.rome-story,
.rome-conclusion {
  margin-top: var(--space-9);
  padding-top: var(--space-9) !important;
  border-top: var(--border-default) solid var(--semantic-color-border);
}

.rome-story-heading {
  max-width: 70rem;
}

.rome-story-heading h2,
.rome-conclusion h2 {
  color: var(--semantic-color-text-primary);
  font-family: var(--font-family-sans);
  font-size: clamp(var(--font-size-h3), 4.5vw, var(--font-size-h1));
  font-weight: var(--font-weight-regular);
  line-height: var(--font-line-height-heading);
  letter-spacing: var(--font-letter-spacing-heading);
}

.rome-story-heading h2 {
  font-size: clamp(var(--font-size-h3), 4.5vw, var(--font-size-h2));
}

.rome-story-block {
  margin-top: var(--space-9);
}

.rome-story-heading + .rome-story-block {
  margin-top: var(--space-8);
}

.rome-story-block > .rome-eyebrow {
  color: var(--semantic-color-text-secondary);
}

.rome-prose-wide {
  max-width: var(--size-prose);
}

.rome-wide-media,
.rome-media-pair {
  margin-top: var(--space-7);
}

.rome-media-pair {
  display: grid;
  gap: var(--space-4);
  align-items: start;
}

.rome-media-pair figure {
  min-width: 0;
  overflow: hidden;
  border-radius: var(--radius-card);
}

.rome-media-pair--mapping {
  grid-template-columns: minmax(0, 2.52fr) minmax(0, 1fr);
}

.rome-media-pair--quality {
  grid-template-columns: minmax(0, 2.35fr) minmax(16rem, 1fr);
}

.rome-media-pair img {
  height: auto;
  object-fit: contain;
}

.rome-result {
  margin-top: var(--space-9);
}

.rome-conclusion {
  max-width: 64rem;
}

.rome-conclusion p {
  max-width: var(--size-prose);
  margin-top: var(--space-5);
}

.rome-footer {
  width: min(100%, var(--size-container));
  margin: 0 auto;
  padding: var(--space-6) var(--semantic-layout-gutter) var(--space-8);
  display: flex;
  justify-content: space-between;
  border-top: var(--border-default) solid var(--semantic-color-border);
  font-family: var(--font-family-sans);
}

@media (max-width: 64rem) {
  .rome-overview {
    grid-template-columns: 1fr;
  }

  .rome-overview-copy {
    max-width: var(--size-prose);
  }

  .rome-overview-media {
    order: -1;
    margin-top: 0;
    width: 100%;
  }

}

@media (max-width: 48rem) {
  .rome-case #nav,
  .rome-case #nav.scrolled {
    position: absolute;
    inset: 0 var(--semantic-layout-gutter) auto;
    width: auto;
    height: var(--component-navigation-height);
    padding: 0;
    border-bottom-color: var(--semantic-color-border);
  }

  .rome-case #nav .nav-links {
    display: flex;
    gap: var(--space-4);
  }

  .rome-case #nav .nav-links a:not(.btn) {
    display: block;
  }

  .rome-main {
    margin-left: 0;
    padding-top: calc(var(--component-navigation-height) + var(--space-9));
  }

  .rome-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: var(--space-7);
  }

  .rome-story,
  .rome-conclusion {
    padding-top: var(--space-9) !important;
  }

  .rome-story-block {
    margin-top: var(--space-9);
  }

  .rome-story-heading + .rome-story-block {
    margin-top: var(--space-7);
  }

  .rome-media-pair--mapping,
  .rome-media-pair--quality {
    grid-template-columns: 1fr;
  }

  .rome-media-pair figure {
    border-radius: 0;
  }

  .rome-media-pair figure:last-child {
    width: min(100%, 16rem);
  }

  .rome-footer {
    margin-left: 0;
  }
}

@media (max-width: 30rem) {
  .rome-case #nav .nav-links a:first-child {
    display: none;
  }

  .rome-metrics {
    grid-template-columns: 1fr;
  }

  .rome-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: var(--space-4);
  }
}