/* Project Time Lab landing — "proof sheet": four process inks on paper, Archivo Black + Archivo,
   crop marks, a registration mark and the four-ink strip. No gradients, no soft shadows. */

@font-face {
  font-family: "Archivo Black";
  src: url("/assets/fonts/ArchivoBlack_400Regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Archivo";
  src: url("/assets/fonts/Archivo_400Regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Archivo";
  src: url("/assets/fonts/Archivo_600SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "Archivo";
  src: url("/assets/fonts/Archivo_700Bold.ttf") format("truetype");
  font-weight: 700;
  font-display: swap;
}

:root {
  --paper: #f4f4ef;
  --card: #ffffff;
  --line: #d8d8d0;
  --key: #101114;
  --key-soft: #45464d;
  --cyan: #00aeef;
  --cyan-text: #006e96;
  --cyan-tint: #d9f1fb;
  --magenta: #e6007e;
  --magenta-text: #b80064;
  --yellow: #ffe500;
  --on-key: #ffffff;
  --on-key-soft: #c9cad1;
  --display: "Archivo Black", "Archivo", "Arial Black", sans-serif;
  --text: "Archivo", "Segoe UI", Roboto, Arial, sans-serif;
  --gutter: 24px;
  --offset: 14px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--key);
  font-family: var(--text);
  font-size: 1.0625rem;
  line-height: 1.55;
  overflow-wrap: break-word;
}

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

h1,
h2,
h3,
p,
ul,
ol,
figure {
  margin: 0;
}
ul,
ol {
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--magenta);
  outline-offset: 3px;
}

[id] {
  scroll-margin-top: 24px;
}

.wrap {
  width: 100%;
  max-width: 1248px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip {
  position: absolute;
  left: 12px;
  top: -80px;
  z-index: 10;
  padding: 12px 16px;
  background: var(--key);
  color: var(--on-key);
  font-weight: 700;
}
.skip:focus {
  top: 12px;
}

/* ---------- four-ink marks ---------- */

.inkbar {
  display: flex;
  height: 10px;
}
.inkbar i,
.strip i {
  flex: 1;
}
.inkbar i:nth-child(1),
.strip i:nth-child(1) {
  background: var(--cyan);
}
.inkbar i:nth-child(2),
.strip i:nth-child(2) {
  background: var(--magenta);
}
.inkbar i:nth-child(3),
.strip i:nth-child(3) {
  background: var(--yellow);
}
.inkbar i:nth-child(4),
.strip i:nth-child(4) {
  background: var(--key);
}

.strip {
  display: flex;
  width: 112px;
  height: 10px;
}

/* Words on a solid block of ink. The block is drawn as a flat background layer that is a little
   lower than the line box, so blocks on neighbouring lines never touch the text above or below. */
.ink {
  --block: var(--key);
  padding: 0 0.14em;
  background: linear-gradient(var(--block), var(--block)) no-repeat 0 58% / 100% 86%;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}
.ink--k {
  color: var(--on-key);
}
.ink--c {
  --block: var(--cyan);
  color: var(--key);
}
.ink--m {
  --block: var(--magenta);
  color: var(--on-key);
}
.ink--y {
  --block: var(--yellow);
  color: var(--key);
}
.nb {
  white-space: nowrap;
}

.regmark {
  color: var(--key);
}

.crop {
  position: absolute;
  width: 26px;
  height: 26px;
  pointer-events: none;
}
.crop::before,
.crop::after {
  content: "";
  position: absolute;
  background: var(--key);
}
.crop::before {
  width: 2px;
  height: 18px;
}
.crop::after {
  width: 18px;
  height: 2px;
}
.crop--tl {
  left: -26px;
  top: -26px;
}
.crop--tl::before {
  right: 0;
  top: 0;
}
.crop--tl::after {
  left: 0;
  bottom: 0;
}
.crop--tr {
  right: -26px;
  top: -26px;
}
.crop--tr::before {
  left: 0;
  top: 0;
}
.crop--tr::after {
  right: 0;
  bottom: 0;
}
.crop--bl {
  left: -26px;
  bottom: -26px;
}
.crop--bl::before {
  right: 0;
  bottom: 0;
}
.crop--bl::after {
  left: 0;
  top: 0;
}
.crop--br {
  right: -26px;
  bottom: -26px;
}
.crop--br::before {
  left: 0;
  bottom: 0;
}
.crop--br::after {
  right: 0;
  top: 0;
}

/* ---------- type ---------- */

.label {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  margin-bottom: 18px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.3;
  text-transform: uppercase;
}
.label__no {
  padding: 4px 8px;
  border: 2px solid var(--key);
  border-radius: 3px;
  letter-spacing: 0.1em;
}
.label--light .label__no {
  border-color: var(--on-key);
}

.h1,
.h2,
.h3 {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -0.015em;
  text-wrap: balance;
}
.h1 {
  font-size: clamp(2.125rem, 6.1vw, 5.5rem);
  line-height: 1.16;
}
.h1--page {
  max-width: none;
  font-size: clamp(2.125rem, 5.4vw, 4.5rem);
}
.h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.625rem);
  line-height: 1.2;
}
.h2--big {
  font-size: clamp(1.9375rem, 4.4vw, 3.75rem);
  line-height: 1.18;
}
.h3 {
  font-size: clamp(1.625rem, 2.7vw, 2.375rem);
  line-height: 1.22;
}

.textlink {
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}
.textlink:hover {
  text-decoration-color: var(--magenta);
}

/* ---------- header ---------- */

.top {
  border-bottom: 2px solid var(--key);
  background: var(--paper);
}
.top__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 4px 24px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  font-family: var(--display);
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.brand img {
  width: 40px;
  height: 40px;
}
.brand--light img {
  border-radius: 6px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0 4px;
  margin: 0 -10px;
}
.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 10px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
}
.nav a:hover,
.nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 6px;
}
.nav a[aria-current="page"] {
  text-decoration-color: var(--cyan);
}

/* ---------- buttons / CTA ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  margin: 0;
  padding: 12px 22px;
  border: 2px solid var(--key);
  border-radius: 6px;
  background: var(--cyan);
  box-shadow: 6px 6px 0 var(--key);
  color: var(--key);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
a.btn:hover {
  transform: translate(3px, 3px);
  box-shadow: 3px 3px 0 var(--key);
}
.btn__icon {
  flex: none;
}
.btn--soon {
  border-style: dashed;
  background: var(--card);
  box-shadow: none;
  cursor: default;
}
.cta__note {
  max-width: 44ch;
  margin-top: 14px;
  color: var(--key-soft);
  font-size: 0.9375rem;
  line-height: 1.45;
}

/* ---------- screenshots ---------- */

.shot {
  position: relative;
  border: 3px solid var(--key);
  border-radius: 6px;
  background: var(--paper);
}
.shot img {
  width: 100%;
  border-radius: 3px;
}
.shot--y {
  box-shadow: var(--offset) var(--offset) 0 var(--yellow);
}
.shot--c {
  box-shadow: var(--offset) var(--offset) 0 var(--cyan);
}
.shot--m {
  box-shadow: var(--offset) var(--offset) 0 var(--magenta);
}
.shot--k {
  box-shadow: var(--offset) var(--offset) 0 var(--key);
}

/* ---------- hero ---------- */

.hero {
  padding: 56px 0 96px;
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 72px;
  align-items: start;
  margin-top: 48px;
}
.hero__copy .strip {
  margin-bottom: 24px;
}
.lede {
  max-width: 34em;
  margin-bottom: 32px;
  font-size: 1.25rem;
  line-height: 1.5;
}
.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, max-content));
  gap: 8px 28px;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 2px solid var(--key);
  font-size: 0.9375rem;
  font-weight: 600;
}
.facts li {
  position: relative;
  padding-left: 20px;
}
.facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 10px;
  height: 10px;
  background: var(--key);
}
.facts li:nth-child(1)::before {
  background: var(--cyan);
}
.facts li:nth-child(2)::before {
  background: var(--magenta);
}
.facts li:nth-child(3)::before {
  background: var(--yellow);
  outline: 1px solid var(--key);
}

.proofsheet {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 34px;
  align-items: start;
  margin: 26px var(--offset) 26px 26px;
}
.proofsheet__col {
  display: grid;
  gap: 34px;
}
.proofsheet__col--low {
  margin-top: 44px;
}
.proofsheet__mark {
  position: absolute;
  right: 18%;
  top: -14px;
  width: 44px;
  height: 44px;
}

/* ---------- ink legend ---------- */

.legend {
  padding: 72px 0;
  border-top: 2px solid var(--key);
  border-bottom: 2px solid var(--key);
  background: var(--card);
}
.legend__grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: 56px;
  align-items: start;
}
.legend__head p:last-child {
  margin-top: 18px;
  color: var(--key-soft);
}
.legend__list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 2px solid var(--key);
  border-radius: 6px;
  overflow: hidden;
}
.swatch {
  display: flex;
  flex-direction: column;
  padding: 0 16px 20px;
  border-left: 2px solid var(--key);
}
.swatch:first-child {
  border-left: 0;
}
.swatch__chip {
  height: 84px;
  margin: 0 -16px 16px;
  border-bottom: 2px solid var(--key);
}
.swatch--k .swatch__chip {
  background: var(--key);
}
.swatch--c .swatch__chip {
  background: var(--cyan);
}
.swatch--m .swatch__chip {
  background: var(--magenta);
}
.swatch--y .swatch__chip {
  background: var(--yellow);
}
.swatch__name {
  color: var(--key-soft);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.swatch__meaning {
  margin: 4px 0 8px;
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.2;
}
.swatch__text {
  color: var(--key-soft);
  font-size: 0.9375rem;
  line-height: 1.45;
}

/* ---------- timer ---------- */

.timer {
  padding: 96px 0;
  background: var(--key);
  color: var(--on-key);
}
.timer__grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 72px;
  align-items: end;
}
.timer .h2 {
  margin-bottom: 28px;
}
.timer__text {
  max-width: 38em;
  color: var(--on-key-soft);
  font-size: 1.125rem;
}
.timer__text + .timer__text {
  margin-top: 16px;
}

.limits {
  padding: 24px 26px 26px;
  border: 2px solid var(--yellow);
  border-radius: 6px;
}
.limits__title {
  margin-bottom: 14px;
  color: var(--yellow);
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 400;
}
.limits li {
  position: relative;
  padding-left: 24px;
  color: var(--on-key);
}
.limits li + li {
  margin-top: 10px;
}
.limits li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 12px;
  height: 3px;
  background: var(--yellow);
}

.track {
  margin-top: 72px;
  padding-top: 28px;
  border-top: 2px solid #3a3b42;
}
.track__label {
  margin-bottom: 28px;
  color: var(--on-key-soft);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.track__steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.25fr);
}
.step {
  position: relative;
  display: flex;
  flex-direction: column;
  padding-right: 28px;
}
.step__time {
  font-family: var(--display);
  font-size: 1.75rem;
  line-height: 1.1;
}
.step--gap .step__time {
  color: #7d7e86;
}
.step__line {
  position: relative;
  height: 18px;
  margin: 14px -28px 18px 0;
  border-bottom: 4px solid var(--on-key);
}
.step__line::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -11px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--yellow);
}
.step--gap .step__line {
  border-bottom-style: dashed;
  border-bottom-color: #7d7e86;
}
.step--gap .step__line::before {
  border: 3px solid #7d7e86;
  background: var(--key);
}
.step--end {
  padding-right: 0;
}
.step--end .step__line {
  margin-right: 0;
  border-bottom-color: transparent;
}
.step__title {
  font-size: 1.125rem;
  font-weight: 700;
}
.step__text {
  margin-top: 4px;
  color: var(--on-key-soft);
  font-size: 0.9375rem;
  line-height: 1.45;
}
.step__clock {
  align-self: flex-start;
  margin-top: 18px;
  padding: 2px 12px 4px;
  border-radius: 6px;
  background: var(--yellow);
  color: var(--key);
  font-family: var(--display);
  font-size: clamp(2.25rem, 4.4vw, 3.5rem);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

/* ---------- features ---------- */

.features {
  padding: 96px 0 40px;
  overflow: hidden;
}
.features__head {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 40px 72px;
  align-items: end;
  padding-bottom: 40px;
  border-bottom: 2px solid var(--key);
}
.features__intro {
  color: var(--key-soft);
  font-size: 1.125rem;
}

.sheet {
  padding: 72px 0;
  border-bottom: 2px solid var(--key);
}
.sheet p + p {
  margin-top: 14px;
}
.sheet .h3 {
  margin-bottom: 22px;
}
.sheet--split {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: 88px;
  align-items: center;
}
.sheet--flip .sheet__copy {
  order: 2;
}
.sheet--flip {
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
}
.sheet__copy {
  max-width: 36em;
}
.sheet__art {
  padding-right: var(--offset);
  padding-bottom: var(--offset);
}
.sheet__art--screen {
  max-width: 400px;
  justify-self: center;
}
.sheet__art--stack {
  display: grid;
  gap: 0;
}
.sheet__art--stack .shot--shift {
  width: 78%;
  margin: 34px 0 0 auto;
}

.pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  border-bottom: 2px solid var(--key);
}
.sheet--half {
  padding: 72px 56px 72px 0;
  border-bottom: 0;
}
.sheet--half + .sheet--half {
  padding: 72px 0 72px 56px;
  border-left: 2px solid var(--key);
}
.sheet--half .shot {
  max-width: 440px;
  margin: 36px var(--offset) var(--offset) 0;
}

.formula,
.states {
  margin-top: 30px;
  padding: 20px 22px 22px;
  border: 2px solid var(--key);
  border-radius: 6px;
  background: var(--card);
}
.formula__label {
  margin-bottom: 10px;
  color: var(--key-soft);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.formula__line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  font-family: var(--display);
  font-size: clamp(1.25rem, 2.1vw, 1.75rem);
  line-height: 1.25;
}
.formula__line span {
  white-space: nowrap;
}
.formula__op {
  color: var(--key-soft);
}
.formula__sum {
  padding: 0 8px;
  background: var(--cyan);
}
.sheet .formula__note {
  margin-top: 12px;
  color: var(--key-soft);
  font-size: 0.9375rem;
  line-height: 1.45;
}

.state + .state {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.state__times {
  display: block;
  font-weight: 700;
}
.planbar {
  display: block;
  height: 10px;
  margin: 8px 0;
  border-radius: 3px;
  background: var(--cyan-tint);
  overflow: hidden;
}
.planbar i {
  display: block;
  height: 100%;
  background: var(--key);
}
.state--over .planbar {
  background: var(--magenta);
}
.state--over .planbar i {
  border-right: 3px solid var(--card);
}
.state__status {
  display: block;
  color: var(--key-soft);
  font-size: 0.9375rem;
}
.state--over .state__status {
  color: var(--magenta-text);
  font-weight: 600;
}

.keys {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.keys li {
  padding: 9px 14px;
  border: 2px solid var(--key);
  border-radius: 6px;
  background: var(--card);
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.2;
}
.keys li:first-child {
  background: var(--cyan);
}

.tpl {
  margin-top: 28px;
  border-top: 2px solid var(--key);
}
.tpl li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2px 20px;
  padding: 12px 0 12px 16px;
  border-bottom: 1px solid var(--line);
  border-left: 6px solid var(--key);
}
.tpl li:nth-child(1) {
  border-left-color: var(--cyan);
}
.tpl li:nth-child(2) {
  border-left-color: var(--magenta);
}
.tpl li:nth-child(3) {
  border-left-color: #92278f;
}
.tpl li:nth-child(4) {
  border-left-color: #6d6e71;
}
.tpl strong {
  font-weight: 700;
}
.tpl span {
  color: var(--key-soft);
  font-size: 0.9375rem;
  font-weight: 600;
}

/* ---------- who / what it does not do ---------- */

.fit {
  padding: 96px 0;
}
.fit__grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 72px;
  align-items: start;
}
.who {
  margin-top: 36px;
  border-top: 2px solid var(--key);
  counter-reset: who;
}
.who li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 4px 0;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  counter-increment: who;
}
.who li::before {
  content: counter(who, decimal-leading-zero);
  grid-row: span 2;
  font-family: var(--display);
  font-size: 1.125rem;
  line-height: 1.5;
  color: var(--cyan-text);
}
.who__title {
  font-family: var(--display);
  font-size: 1.375rem;
  font-weight: 400;
  line-height: 1.25;
}
.who p {
  color: var(--key-soft);
}

.nots {
  padding: 28px 28px 30px;
  border: 2px solid var(--key);
  border-radius: 6px;
  background: var(--card);
  box-shadow: var(--offset) var(--offset) 0 var(--magenta);
}
.nots__title {
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.2;
}
.nots__intro {
  margin: 8px 0 18px;
  color: var(--key-soft);
  font-size: 0.9375rem;
}
.nots li {
  position: relative;
  padding: 12px 0 12px 30px;
  border-top: 1px solid var(--line);
  font-weight: 600;
  line-height: 1.4;
}
.nots li::before,
.nots li::after {
  content: "";
  position: absolute;
  left: 2px;
  top: 1.45em;
  width: 16px;
  height: 3px;
  background: var(--magenta);
  transform: rotate(45deg);
}
.nots li::after {
  transform: rotate(-45deg);
}

/* ---------- data band ---------- */

.data {
  padding: 88px 0;
  border-top: 2px solid var(--key);
  border-bottom: 2px solid var(--key);
  background: var(--yellow);
}
.data__grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 72px;
  align-items: center;
}
.data__text {
  font-size: 1.125rem;
}
.data__points {
  display: grid;
  gap: 8px;
  margin: 22px 0 26px;
  padding: 18px 0;
  border-top: 2px solid var(--key);
  border-bottom: 2px solid var(--key);
  font-weight: 700;
}
.data__points li {
  position: relative;
  padding-left: 24px;
}
.data__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.4em;
  width: 12px;
  height: 12px;
  background: var(--key);
}

/* ---------- download ---------- */

.download {
  padding: 110px 0;
  overflow: hidden;
}
.download__sheet {
  position: relative;
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
  margin: 0 26px;
  padding: 56px;
  border: 2px solid var(--key);
  border-radius: 6px;
  background: var(--card);
}
.download__text {
  max-width: 40em;
  margin: 22px 0 30px;
  font-size: 1.125rem;
}

/* ---------- sub pages ---------- */

.pagehead {
  padding: 56px 0 48px;
  border-bottom: 2px solid var(--key);
  overflow: hidden;
}
.pagehead__in {
  position: relative;
}
.pagehead .strip {
  margin-top: 26px;
}
.pagehead__mark {
  position: absolute;
  right: var(--gutter);
  top: -6px;
}

.doc {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: 72px;
  align-items: start;
  padding-top: 56px;
  padding-bottom: 96px;
}
.doc__side {
  position: sticky;
  top: 24px;
}
.doc__date {
  margin-bottom: 18px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.doc__intro {
  max-width: 40em;
  margin-bottom: 36px;
  font-size: 1.1875rem;
}

.brief {
  padding: 22px 24px 24px;
  border: 2px solid var(--key);
  border-radius: 6px;
  background: var(--yellow);
}
.brief__title,
.toc__title,
.mailbox__title {
  margin-bottom: 12px;
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.2;
}
.brief li {
  position: relative;
  padding-left: 22px;
  font-weight: 600;
  line-height: 1.4;
}
.brief li + li {
  margin-top: 8px;
}
.brief li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.4em;
  width: 10px;
  height: 10px;
  background: var(--key);
}

.toc {
  margin-top: 28px;
}
.toc ol {
  border-top: 2px solid var(--key);
  counter-reset: toc;
}
.toc li {
  border-bottom: 1px solid var(--line);
  counter-increment: toc;
}
.toc a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  min-height: 44px;
  padding: 10px 0;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.35;
  text-decoration: none;
}
.toc a::before {
  content: counter(toc, decimal-leading-zero);
  color: var(--cyan-text);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.toc a:hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.clause {
  padding: 0 0 34px;
  margin-bottom: 34px;
  border-bottom: 1px solid var(--line);
}
.clause:last-child {
  margin-bottom: 0;
  border-bottom: 0;
}
.clause__title {
  display: flex;
  gap: 16px;
  align-items: baseline;
  margin-bottom: 16px;
  font-family: var(--display);
  font-size: clamp(1.3125rem, 2vw, 1.625rem);
  font-weight: 400;
  line-height: 1.2;
}
.clause__no {
  flex: none;
  color: var(--cyan-text);
  font-size: 0.875rem;
  font-family: var(--text);
  font-weight: 700;
  letter-spacing: 0.08em;
}
.clause p,
.clause ul {
  max-width: 42em;
}
.clause p + p,
.clause p + ul,
.clause ul + p {
  margin-top: 12px;
}
.clause ul li {
  position: relative;
  padding-left: 24px;
}
.clause ul li + li {
  margin-top: 6px;
}
.clause ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.72em;
  width: 12px;
  height: 3px;
  background: var(--key);
}

.mailbox {
  padding: 24px 24px 26px;
  border: 2px solid var(--key);
  border-radius: 6px;
  background: var(--card);
  box-shadow: var(--offset) var(--offset) 0 var(--cyan);
}
.mailbox p + p {
  margin-top: 12px;
}
.mailbox__mail {
  display: inline-block;
  padding: 2px 0;
  font-weight: 700;
  font-size: 1.0625rem;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
  overflow-wrap: anywhere;
}
.mailbox__hint,
.mailbox__version {
  color: var(--key-soft);
  font-size: 0.9375rem;
  line-height: 1.45;
}
.mailbox__version {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
.mailbox__version strong {
  color: var(--key);
}

.faq__label {
  margin-bottom: 14px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.faq {
  border-top: 2px solid var(--key);
}
.faq__item {
  border-bottom: 1px solid var(--line);
}
.faq__item summary {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 24px;
  gap: 0 8px;
  align-items: baseline;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}
.faq__item summary::-webkit-details-marker {
  display: none;
}
.faq__item summary::after {
  content: "+";
  font-family: var(--display);
  font-size: 1.375rem;
  line-height: 1;
  text-align: right;
}
.faq__item[open] summary::after {
  content: "–";
}
.faq__no {
  color: var(--cyan-text);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.faq__q {
  font-size: 1.1875rem;
  font-weight: 700;
  line-height: 1.3;
}
.faq__a {
  max-width: 42em;
  padding: 0 32px 22px 52px;
  color: var(--key-soft);
}
.faq__a p + p {
  margin-top: 10px;
}

.log {
  max-width: 880px;
  margin: 0 auto 0 0;
  padding-top: 56px;
  padding-bottom: 96px;
}
.page-changelog .log,
.page-notFound .log {
  margin-left: max(0px, calc((100% - 1248px) / 2));
}
.release {
  margin-bottom: 48px;
  border: 2px solid var(--key);
  border-radius: 6px;
  background: var(--card);
  box-shadow: var(--offset) var(--offset) 0 var(--yellow);
}
.release__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding: 22px 26px;
  border-bottom: 2px solid var(--key);
}
.release__version {
  font-family: var(--display);
  font-size: 1.75rem;
  line-height: 1.1;
}
.release__version span {
  font-family: var(--text);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.release__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  padding: 5px 10px;
  border: 2px solid var(--key);
  border-radius: 3px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.tag--y {
  background: var(--yellow);
}
.release__list {
  padding: 20px 26px 24px;
}
.release__list li {
  position: relative;
  padding-left: 24px;
}
.release__list li + li {
  margin-top: 8px;
}
.release__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 10px;
  height: 10px;
  background: var(--cyan);
}

.lost__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px 32px;
}

/* ---------- footer ---------- */

.foot {
  background: var(--key);
  color: var(--on-key-soft);
  font-size: 0.9375rem;
}
.foot a {
  color: var(--on-key);
}
.foot__grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 2fr) minmax(0, 3fr) minmax(0, 2fr);
  gap: 48px;
  padding-top: 64px;
  padding-bottom: 48px;
}
.foot__brand .brand {
  color: var(--on-key);
}
.foot__brand p {
  max-width: 30em;
  margin-top: 12px;
}
.foot__title {
  margin-bottom: 12px;
  color: var(--on-key);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.foot li a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  text-decoration: none;
}
.foot li a:hover {
  text-decoration: underline;
}
.foot ul li:not(:has(a)) {
  padding: 5px 0;
}
.foot__mail {
  display: inline-block;
  margin-top: 6px;
  padding: 4px 0;
  font-weight: 700;
  overflow-wrap: anywhere;
  text-underline-offset: 4px;
}
.foot .inkbar i:nth-child(4) {
  background: var(--paper);
}
.foot__base > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 32px;
  padding: 20px 0 28px;
  border-top: 1px solid #3a3b42;
  font-size: 0.8125rem;
}
.foot__base p:first-child {
  max-width: 60em;
}

/* ---------- responsive ---------- */

@media (max-width: 1080px) {
  .hero__grid,
  .timer__grid,
  .fit__grid,
  .data__grid,
  .sheet--split,
  .features__head {
    gap: 48px;
  }
  .legend__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }
  .sheet--half {
    padding-right: 32px;
  }
  .sheet--half + .sheet--half {
    padding-left: 32px;
  }
  .foot__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
  .doc {
    gap: 48px;
  }
}

@media (max-width: 860px) {
  :root {
    --gutter: 16px;
    --offset: 10px;
  }
  body {
    font-size: 1rem;
  }
  .hero {
    padding: 36px 0 64px;
  }
  .hero__grid,
  .timer__grid,
  .fit__grid,
  .data__grid,
  .sheet--split,
  .sheet--flip,
  .features__head,
  .doc {
    grid-template-columns: minmax(0, 1fr);
  }
  .hero__grid {
    margin-top: 28px;
    gap: 56px;
  }
  .lede {
    font-size: 1.125rem;
  }
  .proofsheet {
    gap: 24px;
    margin: 18px var(--offset) 18px 14px;
  }
  .proofsheet__col {
    gap: 24px;
  }
  .proofsheet__col--low {
    margin-top: 28px;
  }
  .crop--tl,
  .crop--bl {
    left: -22px;
  }
  .crop--tr,
  .crop--br {
    right: -22px;
  }
  .legend,
  .timer,
  .fit,
  .data {
    padding: 64px 0;
  }
  .features {
    padding: 64px 0 24px;
  }
  .features__head {
    gap: 16px;
    padding-bottom: 28px;
  }
  .sheet {
    padding: 52px 0;
  }
  .sheet--flip .sheet__copy {
    order: 0;
  }
  .sheet--split {
    gap: 36px;
  }
  .sheet__art--screen {
    justify-self: start;
    max-width: 380px;
  }
  .pair {
    grid-template-columns: minmax(0, 1fr);
    border-bottom: 0;
  }
  .sheet--half,
  .sheet--half + .sheet--half {
    padding: 52px 0;
    border-left: 0;
    border-bottom: 2px solid var(--key);
  }
  .track {
    margin-top: 48px;
  }
  .track__steps {
    grid-template-columns: minmax(0, 1fr);
  }
  .step {
    display: grid;
    grid-template-columns: 76px 18px minmax(0, 1fr);
    gap: 0 14px;
    padding: 0 0 28px;
  }
  .step__time {
    grid-row: 1 / span 3;
    font-size: 1.375rem;
    line-height: 1.3;
  }
  .step__line {
    grid-row: 1 / span 3;
    grid-column: 2;
    width: 18px;
    height: auto;
    margin: 6px 0 -34px;
    border-bottom: 0;
    border-left: 4px solid var(--on-key);
    transform: translateX(7px);
  }
  .step__line::before {
    left: -11px;
    top: 0;
    bottom: auto;
  }
  .step--gap .step__line {
    border-left-style: dashed;
    border-left-color: #7d7e86;
  }
  .step--end {
    padding-bottom: 0;
  }
  .step--end .step__line {
    margin: 6px 0 0;
    border-left-color: transparent;
  }
  .step__title,
  .step__text,
  .step__clock {
    grid-column: 3;
  }
  .step__clock {
    justify-self: start;
    margin-top: 12px;
  }
  .download {
    padding: 72px 0;
  }
  .download__sheet {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    margin: 0 10px;
    padding: 32px 22px 36px;
  }
  .download__mark {
    width: 72px;
    height: 72px;
  }
  .pagehead {
    padding: 36px 0 32px;
  }
  .pagehead__mark {
    display: none;
  }
  .doc {
    gap: 40px;
    padding-top: 36px;
    padding-bottom: 64px;
  }
  .doc__side {
    position: static;
  }
  .doc--support .doc__side {
    order: 2;
    padding-right: var(--offset);
  }
  .log {
    padding-top: 36px;
    padding-bottom: 64px;
  }
  .release {
    margin-right: var(--offset);
  }
  .nots {
    margin-right: var(--offset);
  }
  .faq__a {
    padding: 0 0 20px 52px;
  }
}

@media (max-width: 640px) {
  .brand {
    font-size: 1rem;
  }
  .brand img {
    width: 34px;
    height: 34px;
  }
  .nav {
    width: calc(100% + 20px);
    justify-content: space-between;
  }
  .nav a {
    padding: 0 8px;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
  }
  .nav__wide {
    display: none !important;
  }
  .top__row {
    padding-top: 6px;
    padding-bottom: 2px;
  }
  .legend__list {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
  .swatch:nth-child(3) {
    border-left: 0;
  }
  .swatch:nth-child(n + 3) {
    border-top: 2px solid var(--key);
  }
  .swatch__chip {
    height: 56px;
  }
  .facts {
    grid-template-columns: minmax(0, 1fr);
  }
  .btn {
    width: 100%;
    justify-content: center;
  }
  .lost__links .btn {
    width: auto;
  }
  .sheet__art--stack .shot--shift {
    width: 86%;
    margin-top: 26px;
  }
  .proofsheet {
    grid-template-columns: minmax(0, 1fr);
  }
  .proofsheet__col--low {
    margin-top: 0;
  }
  .proofsheet__mark {
    right: 8%;
    top: -34px;
    width: 34px;
    height: 34px;
  }
  .foot__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding-top: 48px;
  }
  .who li {
    grid-template-columns: 44px minmax(0, 1fr);
  }
  .tpl span {
    flex-basis: 100%;
  }
  .faq__item summary {
    grid-template-columns: 34px minmax(0, 1fr) 20px;
  }
  .faq__a {
    padding-left: 42px;
  }
  .clause__title {
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .btn {
    transition: none;
  }
}