/* ==========================================================================
   KERN — design & technology studio
   1.  Tokens
   2.  Reset & base
   3.  Primitives (tag, shell, buttons, links)
   4.  Chrome (progress, grain, header, nav, footer)
   5.  Hero
   6.  Marquee
   7.  Services bento
   8.  Manifesto (dark)
   9.  Work
   10. Numbers
   11. Quotes
   12. Process
   13. Contact + form
   14. Footer
   15. Reveal + motion
   16. Responsive
   ========================================================================== */

/* ─────────────────── 1. Tokens ─────────────────── */
:root {
  /* Warm paper, near-black ink, one vermilion accent */
  --paper: #f7f6f3;
  --paper-2: #efede7;
  --ink: #0c0c0b;
  --ink-2: #3b3a37;
  --muted: #86847d;
  --line: #dedcd4;
  --accent: #c63d1a;
  --accent-soft: #f0e2db;

  --dark: #0c0c0b;
  --dark-2: #161614;
  --dark-line: #2b2b27;
  --dark-text: #edebe4;
  --dark-muted: #8c8a82;
  --accent-lt: #f0653d;

  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --shell: 1240px;
  --pad: clamp(20px, 5vw, 56px);
  --r-sm: 6px;
  --r-pill: 100px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-2);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--ink);
  text-wrap: balance;
}
p {
  margin: 0;
}
ul,
ol,
dl,
dd {
  margin: 0;
  padding: 0;
  list-style: none;
}
img,
svg {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

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

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

/* Serif italic accent inside headings */
h1 em,
h2 em,
.manifesto__quote em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--accent);
}

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad);
}

/* ─────────────────── 3. Primitives ─────────────────── */
.tag {
  display: block;
  margin-bottom: clamp(20px, 3vw, 30px);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.tag--dark {
  color: var(--dark-muted);
}

.section {
  padding-block: clamp(72px, 11vw, 148px);
}
.section--tint {
  background: var(--paper-2);
}

.sec-head {
  max-width: 720px;
  margin-bottom: clamp(48px, 6vw, 84px);
}
.sec-head--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 5vw, 72px);
  max-width: none;
  align-items: end;
}
.sec-title {
  font-size: clamp(2.1rem, 5.6vw, 4rem);
}
.sec-sub {
  max-width: 46ch;
  font-size: clamp(1rem, 1.3vw, 1.1rem);
  line-height: 1.65;
  color: var(--ink-2);
  opacity: 0.78;
}
.sec-head--split .sec-sub {
  padding-bottom: 0.5em;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  cursor: pointer;
  white-space: nowrap;
  transition:
    background-color 0.3s var(--ease),
    color 0.3s var(--ease),
    border-color 0.3s var(--ease),
    transform 0.3s var(--ease-out);
}
.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}
.btn--sm {
  padding: 11px 22px;
  font-size: 0.88rem;
}
.btn--block {
  width: 100%;
}

.btn--solid {
  background: var(--ink);
  color: var(--paper);
}
.btn--solid:hover {
  background: var(--accent);
}

.btn--line {
  border-color: var(--line);
  color: var(--ink);
}
.btn--line:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.93rem;
  font-weight: 500;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
  transition: gap 0.3s var(--ease);
}
.arrow-link:hover {
  text-decoration: none;
  gap: 14px;
}
.arrow-link--dark {
  color: var(--dark-text);
}

.skip {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--r-sm);
  font-size: 0.9rem;
  transition: top 0.2s;
}
.skip:focus {
  top: 12px;
}

/* ─────────────────── 4. Chrome ─────────────────── */
.progress {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 300;
  height: 2px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--accent);
  pointer-events: none;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Header */
.header {
  position: fixed;
  inset: 2px 0 auto 0;
  z-index: 200;
  transition:
    background-color 0.35s var(--ease),
    border-color 0.35s,
    backdrop-filter 0.35s;
  border-bottom: 1px solid transparent;
}
.header.is-stuck {
  background: rgba(247, 246, 243, 0.82);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--line);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 88px;
  transition: height 0.35s var(--ease);
}
.header.is-stuck .header__inner {
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
}
.brand__mark {
  width: 11px;
  height: 11px;
  background: var(--accent);
  border-radius: 2px;
  transition: transform 0.5s var(--ease-out);
}
.brand:hover .brand__mark {
  transform: rotate(45deg);
}
.brand__word {
  font-size: 1.28rem;
  font-weight: 600;
  letter-spacing: -0.045em;
  color: var(--ink);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 2.4vw, 36px);
}
.nav__link {
  position: relative;
  font-size: 0.92rem;
  color: var(--ink-2);
  transition: color 0.25s;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 0;
  height: 1px;
  background: var(--ink);
  transition: width 0.3s var(--ease);
}
.nav__link:hover {
  color: var(--ink);
}
.nav__link:hover::after,
.nav__link.is-active::after {
  width: 100%;
}
.nav__link.is-active {
  color: var(--ink);
}

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 0 11px;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  cursor: pointer;
}
.burger span {
  display: block;
  height: 1.5px;
  background: var(--ink);
  transition:
    transform 0.3s var(--ease),
    opacity 0.2s;
}
.burger[aria-expanded="true"] span:first-child {
  transform: translateY(3.75px) rotate(45deg);
}
.burger[aria-expanded="true"] span:last-child {
  transform: translateY(-3.75px) rotate(-45deg);
}

/* ─────────────────── 5. Hero ─────────────────── */
.hero {
  padding-block: clamp(140px, 19vw, 210px) clamp(64px, 9vw, 120px);
  position: relative;
}
.hero::before {
  content: "";
  position: absolute;
  top: -10%;
  right: -12%;
  width: min(680px, 62vw);
  aspect-ratio: 1;
  background: radial-gradient(
    circle,
    rgba(198, 61, 26, 0.075),
    transparent 66%
  );
  pointer-events: none;
  z-index: -1;
}
.hero__inner {
  max-width: 980px;
}

.hero__title {
  font-size: clamp(2.6rem, 8.4vw, 6.4rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
}
.hero__text {
  max-width: 50ch;
  margin-top: clamp(24px, 3vw, 34px);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.6;
  color: var(--ink-2);
  opacity: 0.8;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(32px, 4vw, 46px);
}

.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(28px, 5vw, 64px);
  margin-top: clamp(52px, 7vw, 92px);
  padding-top: clamp(24px, 3vw, 30px);
  border-top: 1px solid var(--line);
}
.hero__facts dt {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.hero__facts dd {
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  color: var(--ink);
  line-height: 1;
}

/* ─────────────────── 6. Marquee ─────────────────── */
.marquee-band {
  padding-block: 26px;
  border-block: 1px solid var(--line);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent,
    #000 8%,
    #000 92%,
    transparent
  );
  mask-image: linear-gradient(
    90deg,
    transparent,
    #000 8%,
    #000 92%,
    transparent
  );
}
.marquee {
  display: flex;
  width: max-content;
}
.marquee__track {
  display: flex;
  align-items: center;
  gap: clamp(40px, 6vw, 88px);
  padding-right: clamp(40px, 6vw, 88px);
  animation: slide 42s linear infinite;
}
.marquee-band:hover .marquee__track {
  animation-play-state: paused;
}
.marquee__track li {
  font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--muted);
  white-space: nowrap;
  transition: color 0.3s;
}
.marquee__track li:hover {
  color: var(--ink);
}
@keyframes slide {
  to {
    transform: translateX(-100%);
  }
}

/* ─────────────────── 7. Services bento ─────────────────── */
.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.cell {
  grid-column: span 2;
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 3.2vw, 40px);
  background: var(--paper);
  transition:
    background-color 0.4s var(--ease),
    color 0.4s var(--ease);
}
.cell--wide {
  grid-column: span 4;
}
.cell:hover {
  background: var(--ink);
}
.cell:hover .cell__title,
.cell:hover .cell__idx {
  color: var(--paper);
}
.cell:hover .cell__text {
  color: rgba(247, 246, 243, 0.72);
}
.cell:hover .cell__list li {
  color: rgba(247, 246, 243, 0.72);
  border-color: var(--dark-line);
}

.cell__idx {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: auto;
  padding-bottom: clamp(20px, 3vw, 34px);
}
.cell__title {
  font-size: clamp(1.35rem, 2.2vw, 1.8rem);
  margin-bottom: 12px;
}
.cell__text {
  max-width: 44ch;
  color: var(--ink-2);
  opacity: 0.78;
  line-height: 1.62;
}
.cell__list {
  margin-top: clamp(20px, 2.5vw, 28px);
  display: grid;
  gap: 10px;
}
.cell__list li {
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
  color: var(--ink-2);
  opacity: 0.78;
  transition:
    color 0.4s,
    border-color 0.4s;
}

/* ─────────────────── 8. Manifesto (dark) ─────────────────── */
.manifesto {
  padding-block: clamp(80px, 12vw, 156px);
  background: var(--dark);
  color: var(--dark-text);
  position: relative;
  overflow: hidden;
}
.manifesto::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -46%;
  width: min(900px, 90vw);
  aspect-ratio: 1;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(240, 101, 61, 0.1), transparent 62%);
  pointer-events: none;
}
.manifesto__quote {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: 20ch;
  font-size: clamp(1.9rem, 4.6vw, 3.5rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.035em;
  color: var(--dark-text);
  text-wrap: balance;
}
.manifesto__quote em {
  color: var(--accent-lt);
  max-width: none;
}
.manifesto__foot {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(20px, 4vw, 48px);
  margin-top: clamp(40px, 6vw, 72px);
  padding-top: clamp(24px, 3vw, 34px);
  border-top: 1px solid var(--dark-line);
}
.manifesto__foot p {
  max-width: 44ch;
  color: var(--dark-muted);
  line-height: 1.62;
}

/* ─────────────────── 9. Work ─────────────────── */
.work {
  border-top: 1px solid var(--line);
}
.work__row {
  display: grid;
  grid-template-columns: 80px 1.1fr 1fr 190px;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  padding-block: clamp(22px, 2.6vw, 30px);
  border-bottom: 1px solid var(--line);
  transition:
    padding-inline 0.35s var(--ease),
    background-color 0.35s var(--ease);
}
.work__row:hover {
  padding-inline: 18px;
  background: var(--paper-2);
}

.work__idx {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.work__name {
  font-size: clamp(1.15rem, 2vw, 1.6rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.work__desc {
  color: var(--ink-2);
  opacity: 0.72;
  font-size: 0.96rem;
}
.work__metric {
  justify-self: end;
  font-family: var(--mono);
  font-size: 0.84rem;
  color: var(--accent);
  white-space: nowrap;
}

/* ─────────────────── 10. Numbers ─────────────────── */
.numbers {
  padding-block: clamp(56px, 8vw, 96px);
  border-block: 1px solid var(--line);
}
.numbers__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(24px, 3vw, 40px);
}
.numbers__val {
  display: block;
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.045em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.numbers__cap {
  display: block;
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ─────────────────── 11. Quotes ─────────────────── */
.quotes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(24px, 4vw, 56px);
}
.quote {
  margin: 0;
}
.quote--offset {
  margin-top: clamp(0px, 6vw, 84px);
}
.quote blockquote {
  margin: 0 0 26px;
  font-size: clamp(1.3rem, 2.7vw, 2.1rem);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-wrap: balance;
}
.quote blockquote::before {
  content: "\201C";
  color: var(--accent);
  margin-right: 0.06em;
}
.quote figcaption {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  max-width: 34ch;
}
.quote__who {
  font-weight: 500;
  color: var(--ink);
  font-size: 0.95rem;
}
.quote__role {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ─────────────────── 12. Process ─────────────────── */
.steps {
  border-top: 1px solid var(--line);
}
.steps__row {
  display: grid;
  grid-template-columns: 80px 240px 1fr;
  align-items: baseline;
  gap: clamp(12px, 2vw, 28px);
  padding-block: clamp(24px, 2.8vw, 32px);
  border-bottom: 1px solid var(--line);
  transition:
    background-color 0.35s var(--ease),
    padding-inline 0.35s var(--ease);
}
.steps__row:hover {
  background: var(--paper);
  padding-inline: 18px;
}
.steps__idx {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.steps__row h3 {
  font-size: clamp(1.1rem, 1.9vw, 1.45rem);
  letter-spacing: -0.03em;
}
.steps__row p {
  color: var(--ink-2);
  opacity: 0.75;
  max-width: 52ch;
}

/* ─────────────────── 13. Contact + form ─────────────────── */
.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 6vw, 96px);
  align-items: start;
}
@media (min-width: 901px) {
  .contact__intro {
    position: sticky;
    top: 104px;
  }
}

.contact__details {
  margin-top: clamp(32px, 4vw, 48px);
  display: grid;
  gap: 18px;
}
.contact__details li {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 0.95rem;
  color: var(--ink-2);
}
.contact__details span {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.contact__details a {
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  width: fit-content;
  transition: border-color 0.25s;
}
.contact__details a:hover {
  border-color: var(--ink);
}

.form {
  display: grid;
  gap: 26px;
}
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.field {
  display: flex;
  flex-direction: column;
}
.field label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 2px;
  font-size: 1rem;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  transition: border-color 0.25s;
}
.field textarea {
  resize: vertical;
  min-height: 110px;
}
.field select {
  appearance: none;
  cursor: pointer;
  padding-right: 26px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2386847D' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 2px center;
  background-size: 15px;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-bottom-color: var(--ink);
}
.field.has-error input,
.field.has-error textarea {
  border-bottom-color: var(--accent);
}
.field__err {
  margin-top: 7px;
  font-size: 0.8rem;
  color: var(--accent);
}
.field__err:empty {
  display: none;
}
.form__status {
  font-size: 0.9rem;
  font-weight: 500;
  min-height: 1.2em;
}
.form__status.is-ok {
  color: #1b7a4b;
}
.form__status.is-bad {
  color: var(--accent);
}

/* ─────────────────── 14. Footer ─────────────────── */
.footer {
  padding-block: clamp(64px, 9vw, 112px) clamp(28px, 4vw, 40px);
  background: var(--ink);
  color: var(--dark-muted);
  overflow: hidden;
}
.footer__top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(28px, 5vw, 56px);
  padding-bottom: clamp(44px, 6vw, 76px);
  border-bottom: 1px solid var(--dark-line);
}
.footer__mail {
  position: relative;
  width: fit-content;
  font-size: clamp(1.5rem, 4.6vw, 3.4rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--dark-text);
  transition: color 0.3s;
}
.footer__mail::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform-origin: right;
  transition: transform 0.45s var(--ease);
}
.footer__mail:hover {
  color: var(--accent-lt);
  text-decoration: none;
}
.footer__mail:hover::after {
  transform: scaleX(0);
}

/* Outlined wordmark — decorative, so the real name is the mail link above */
.footer__mark {
  font-size: clamp(3.2rem, 12.5vw, 10rem);
  font-weight: 600;
  line-height: 0.78;
  letter-spacing: -0.055em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(237, 235, 228, 0.3);
  user-select: none;
  pointer-events: none;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding-block: clamp(40px, 5vw, 60px);
}
.footer__grid h2 {
  margin-bottom: 16px;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dark-muted);
}
.footer__grid ul {
  display: grid;
  gap: 9px;
}
.footer__grid a {
  font-size: 0.94rem;
  color: rgba(237, 235, 228, 0.82);
  transition: color 0.25s;
}
.footer__grid a:hover {
  color: var(--accent-lt);
  text-decoration: none;
}

.footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: clamp(24px, 3vw, 32px);
  border-top: 1px solid var(--dark-line);
  font-size: 0.84rem;
  color: var(--dark-muted);
}

/* ─────────────────── 15. Reveal + motion ─────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.85s var(--ease-out),
    transform 0.85s var(--ease-out);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .marquee__track {
    animation: none;
  }
  .progress {
    display: none;
  }
  * {
    transition-duration: 0.01ms !important;
  }
  *:focus-visible {
    outline: 2px solid var(--accent);
  }
}

/* ─────────────────── 16. Responsive ─────────────────── */
@media (max-width: 1080px) {
  .bento {
    grid-template-columns: repeat(4, 1fr);
  }
  .cell {
    grid-column: span 2;
  }
  .cell--wide {
    grid-column: span 4;
  }
  .numbers__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 24px;
  }
}

@media (max-width: 900px) {
  .sec-head--split {
    grid-template-columns: 1fr;
  }
  .contact__inner {
    grid-template-columns: 1fr;
  }
  .quotes {
    grid-template-columns: 1fr;
  }
  .quote--offset {
    margin-top: 0;
  }
  .work__row {
    grid-template-columns: 68px 1fr;
    row-gap: 8px;
  }
  .work__desc {
    grid-column: 2;
  }
  .work__metric {
    grid-column: 2;
    justify-self: start;
    margin-top: 4px;
  }
  .steps__row {
    grid-template-columns: 60px 1fr;
    row-gap: 6px;
  }
  .steps__row p {
    grid-column: 2;
  }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 250;
    width: min(360px, 86vw);
    height: 100dvh;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 6px;
    padding: 40px var(--pad);
    background: var(--paper);
    border-left: 1px solid var(--line);
    transform: translateX(101%);
    transition: transform 0.42s var(--ease-out);
  }
  .nav.is-open {
    transform: none;
  }
  .nav__link {
    font-size: 1.4rem;
    letter-spacing: -0.03em;
    padding: 6px 0;
  }
  .nav__link::after {
    display: none;
  }
  .nav__cta {
    margin-top: 22px;
  }
  .burger {
    display: flex;
    z-index: 260;
  }
  .header:has(.nav.is-open) {
    background: var(--paper);
  }
}

@media (max-width: 560px) {
  .bento {
    grid-template-columns: 1fr;
  }
  .cell,
  .cell--wide {
    grid-column: span 1;
  }
  .form__row {
    grid-template-columns: 1fr;
  }
  .hero__facts {
    gap: 24px 36px;
  }
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer__top {
    flex-direction: column;
    align-items: flex-start;
  }
  .manifesto__quote {
    max-width: none;
  }
}