/*
 * WinDiag website, draft. One motif: the keycap from the logo (a rounded
 * square whose top sits higher than its thick bottom lip). It is the button,
 * the hero's stage, the wall of features, the picture frame and the bullets.
 *
 * Logo geometry (256 grid): body radius 52/224; key top inset 22 at the
 * sides, 14 at the top, 46 at the bottom; key top radius 32.
 */

@font-face {
  font-family: 'Space Grotesk';
  src: url('fonts/SpaceGrotesk-Variable.woff2') format('woff2');
  font-weight: 300 700;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --carbon: #141619;
  --carbon-2: #1b1e22;
  --graphite: #23262b;
  --graphite-2: #2c3036;
  --paper: #f4f5f6;
  --paper-2: #e3e6ea;
  --soft: #a3a9b1;
  --cyan: #22e3f2;
  --cyan-deep: #0e7490;
  --good: #9be15d;
  --look: #ffc83d;

  --display: 'Space Grotesk', 'Segoe UI Variable Display', system-ui, sans-serif;
  --text: 'Segoe UI Variable Text', 'Segoe UI', system-ui, -apple-system, sans-serif;

  /* five type steps */
  --t-hero: clamp(48px, 6.6vw, 112px);
  --t-head: clamp(34px, 3.6vw, 56px);
  --t-sub: clamp(20px, 1.6vw, 24px);
  --t-body: 18px;
  --t-small: 15px;

  --margin: clamp(16px, 2.8vw, 40px);
  --gap-section: clamp(96px, 11vw, 168px);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  background: var(--carbon);
  color: var(--paper);
  font: 400 var(--t-body) / 1.55 var(--text);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 600;
  margin: 0;
  text-wrap: balance;
}

p {
  margin: 0;
}

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

a {
  color: inherit;
}

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

::selection {
  background: var(--cyan);
  color: var(--carbon);
}

.frame {
  padding-inline: var(--margin);
  max-width: 1600px;
  margin-inline: auto;
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: var(--margin);
  top: 8px;
  z-index: 10;
  background: var(--paper);
  color: var(--carbon);
  padding: 8px 12px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px; /* taste-skill-ignore: visually hidden text */
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* --- The key: the logo as a button --------------------------------------- */

.key {
  --press: 0;
  display: inline-block;
  background: var(--cyan);
  border-radius: 0.62em;
  padding: 0.26em 0.32em 0.62em;
  text-decoration: none;
  font: 600 var(--t-small) / 1 var(--display);
  transition: padding 120ms var(--ease-out);
}
.key-top {
  display: block;
  background: var(--carbon);
  color: var(--paper);
  border-radius: 0.42em;
  padding: 0.95em 1.3em;
  white-space: nowrap;
}
.key-lg {
  font-size: 18px;
}
/* Pressing moves the key top down into the lip, like a real key */
.key:hover {
  padding-top: 0.36em;
  padding-bottom: 0.52em;
}
.key:active {
  padding-top: 0.5em;
  padding-bottom: 0.38em;
}

/* --- Navigation ---------------------------------------------------------- */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 28px;
}
.nav-logo img {
  height: 34px;
  width: auto;
}
.nav nav {
  display: flex;
  gap: clamp(16px, 2.4vw, 36px);
  font-size: var(--t-small);
}
.nav nav a {
  text-decoration: none;
  padding-block: 6px;
}
.nav nav a:hover {
  color: var(--cyan);
}

/* --- Hero ---------------------------------------------------------------- */

.hero {
  position: relative;
  overflow-x: clip;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 24px;
  min-height: calc(100svh - 62px);
  padding-top: clamp(48px, 9vh, 120px);
  padding-bottom: 64px;
}
.hero-copy {
  grid-column: 1 / span 5;
  align-self: start;
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-size: var(--t-hero);
  line-height: 0.95;
  letter-spacing: -0.035em;
  max-width: 7.5em;
}
.lead {
  margin-top: 36px;
  max-width: 34ch;
  font-size: 20px;
}
.hero .key {
  margin-top: 40px;
}
.fine {
  margin-top: 16px;
  color: var(--soft);
  font-size: var(--t-small);
}

/* The stage: the logo's key, enlarged and bleeding off the right edge */
.stage {
  grid-column: 6 / -1;
  grid-row: 1;
  align-self: stretch;
  margin-right: calc(-1 * var(--margin) - 8vw);
  margin-top: clamp(0px, 4vh, 48px);
  background: var(--cyan);
  border-radius: clamp(48px, 5vw, 88px);
  padding: clamp(28px, 2.6vw, 44px) clamp(36px, 3.4vw, 56px) clamp(84px, 8vw, 132px);
  min-height: 560px;
  display: flex;
}
.stage-top {
  flex: 1;
  background: var(--carbon);
  border-radius: clamp(30px, 3.2vw, 56px);
  padding: 44px 0 0 44px;
  overflow: hidden;
}

/* --- App fragment: Checkup ----------------------------------------------- */

[data-ui] {
  font: 400 14px / 1.45 var(--text);
  color: var(--paper);
}
.ui-soft {
  color: var(--soft);
}
.checkup {
  width: 680px;
}
.checkup-summary {
  display: grid;
  grid-template-columns: 150px 1fr;
  align-items: center;
  gap: 20px;
  background: var(--graphite);
  border-radius: 10px;
  overflow: hidden;
  padding-right: 20px;
}
.checkup-mark {
  background: var(--cyan);
  color: var(--carbon);
  height: 100%;
  min-height: 132px;
  display: grid;
  place-items: center;
}
.checkup-mark svg {
  width: 64px;
  height: 64px;
}
.checkup-title {
  font: 600 24px / 1.2 var(--display);
  margin-block: 2px 4px;
}
.checks {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.checks li {
  background: var(--graphite);
  border-radius: 10px;
  padding: 14px 16px;
  display: grid;
  gap: 4px;
  align-content: start;
  position: relative;
}
.checks b {
  font-weight: 600;
}
.checks span {
  color: var(--paper-2);
}
.checks em {
  font-style: normal;
  justify-self: start;
  margin-top: 6px;
  background: var(--graphite-2);
  border-radius: 5px;
  padding: 4px 10px;
  font-size: 13px;
}
.checks li::after {
  position: absolute;
  top: 14px;
  right: 16px;
  font-size: 13px;
  font-weight: 600;
}
.checks li[data-check='good']::after {
  content: '● Good';
  color: var(--good);
}
.checks li[data-check='look']::after {
  content: '▲ Worth a look';
  color: var(--look);
}
.checks li[data-check='checking']::after {
  content: 'Checking…';
  color: var(--soft);
  font-weight: 400;
}
.checks li[data-check='checking'] span,
.checks li[data-check='checking'] em {
  visibility: hidden;
}

/* --- Press any key: the live thing ---------------------------------------- */

.press {
  position: relative;
  min-height: 92svh;
  margin-top: var(--gap-section);
  background: var(--cyan);
  color: var(--carbon);
  overflow: hidden;
  transition: background-color 160ms linear;
}
.press[data-state='b'] {
  background: var(--paper);
}
.press-copy {
  position: relative;
  z-index: 1;
  padding-top: clamp(56px, 8vh, 96px);
  max-width: 1600px;
}
.press h2 {
  font-size: var(--t-head);
  line-height: 1;
  letter-spacing: -0.03em;
  max-width: 9em;
}
.press-copy > p {
  margin-top: 24px;
  max-width: 34ch;
}
.press-copy > .press-count {
  margin-top: 32px;
  font-family: var(--display);
  font-weight: 600;
}
/* A small keyboard: every key is the logo's key, lit in Cyan once it works */
.kb {
  margin-top: 16px;
  display: grid;
  gap: 6px;
  width: max-content;
}
.kb-row {
  display: flex;
  gap: 6px;
}
.kb-row:nth-child(2) {
  margin-left: 22px;
}
.kb-row:nth-child(3) {
  margin-left: 50px;
}
.kb-row:nth-child(4) {
  margin-left: 110px;
}
.kb span {
  width: 44px;
  aspect-ratio: 1;
  background: var(--carbon);
  border-radius: 10px;
  padding: 3px 4px 10px;
  display: flex;
  font: 600 15px / 1 var(--display);
  transition: padding 90ms var(--ease-out);
}
.kb span::before {
  content: attr(data-k);
  flex: 1;
  display: grid;
  place-items: center;
  background: var(--carbon-2);
  color: var(--paper);
  border-radius: 7px;
  transition:
    background-color 160ms linear,
    color 160ms linear;
}
.kb span {
  font-size: 0;
}
.kb span::before {
  font-size: 15px;
}
.kb .kb-space {
  width: 260px;
  aspect-ratio: auto;
  height: 44px;
}
.kb .is-tested::before {
  background: var(--paper);
  color: var(--carbon);
}
.press[data-state='b'] .kb .is-tested::before {
  background: var(--cyan);
}
.kb .is-down {
  padding-top: 7px;
  padding-bottom: 6px;
}

/* The big key: a one-colour key in Carbon, its top showing the field */
.bigkey {
  position: absolute;
  right: -8vw;
  bottom: 7vh;
  width: min(62vw, 82vh);
  aspect-ratio: 1;
  background: var(--carbon);
  border-radius: 23.2%;
  padding: 6.25% 9.8% 20.5%;
  cursor: pointer;
  display: flex;
  transition: padding 90ms var(--ease-out);
}
.bigkey.is-down {
  padding-top: 11%;
  padding-bottom: 15.75%;
}
.bigkey-top {
  flex: 1;
  background: inherit;
  border-radius: 17%;
  background: var(--cyan);
  display: grid;
  place-items: center;
  overflow: hidden;
  transition: background-color 160ms linear;
}
.press[data-state='b'] .bigkey-top {
  background: var(--paper);
}
.bigkey-legend {
  font: 700 clamp(80px, 20vw, 300px) / 1 var(--display);
  letter-spacing: -0.04em;
  color: var(--carbon);
  white-space: nowrap;
}
.bigkey-legend.is-long {
  font-size: clamp(48px, 8vw, 132px);
}
.press-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 1px;
  height: 1px; /* taste-skill-ignore: hidden input for phone keyboards */
  bottom: 0;
  left: 0;
}

/* --- Horizontal parts ------------------------------------------------------
 * Without script each track is a row you can swipe or scroll sideways (with
 * snap points). With GSAP the section is pinned and vertical scrolling moves
 * the row sideways.
 */

.hscroll {
  margin-top: var(--gap-section);
  overflow-x: clip;
}
.hscroll-pin {
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}
.hscroll-pin::-webkit-scrollbar {
  display: none;
}
.hscroll-track {
  list-style: none;
  margin: 0;
  display: flex;
  align-items: center;
  width: max-content;
  padding: 0 var(--margin);
}
.hscroll-track > * {
  scroll-snap-align: start;
  flex: none;
}
.gsap .hscroll-pin {
  overflow: visible;
  height: 100svh;
  display: flex;
  align-items: center;
}

/* The wall: one long row of keys */
.wall {
  --cell: min(46svh, 36vw, 440px);
}
.wall-track {
  gap: clamp(12px, 1.4vw, 24px);
}
.cap {
  width: var(--cell);
  height: var(--cell);
  border-radius: calc(var(--cell) * 0.232);
  padding: calc(var(--cell) * 0.0625) calc(var(--cell) * 0.098) calc(var(--cell) * 0.205);
  display: flex;
  --press: 0;
  transition: padding 120ms var(--ease-out);
}
.cap-wide {
  width: calc(var(--cell) * 2.1);
}
.cap-top {
  flex: 1;
  border-radius: calc(var(--cell) * 0.143);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 10% 11%;
  min-width: 0;
}
.cap-wide .cap-top {
  padding: calc(var(--cell) * 0.08) calc(var(--cell) * 0.09);
}
.cap-cyan {
  background: var(--cyan);
}
.cap-cyan .cap-top {
  background: var(--carbon);
}
.cap-cyan .cap-big,
.cap-cyan .cap-word {
  color: var(--cyan);
}
.cap-graphite {
  background: var(--graphite-2);
}
.cap-graphite .cap-top {
  background: var(--graphite);
}
.cap-paper {
  background: var(--paper-2);
  color: var(--carbon);
}
.cap-paper .cap-top {
  background: var(--paper);
}
.cap-big {
  font: 600 calc(var(--cell) * 0.36) / 0.9 var(--display);
  letter-spacing: -0.04em;
}
.cap-word {
  font: 600 calc(var(--cell) * 0.105) / 1 var(--display);
  letter-spacing: -0.03em;
}
.cap-note {
  font-size: var(--t-small);
  line-height: 1.35;
  max-width: 22ch;
}
.cap-paper .cap-note {
  color: #3b4047;
}
.cap-cyan .cap-note,
.cap-graphite .cap-note {
  color: var(--paper-2);
}
.cap-head h2 {
  font-size: calc(var(--cell) * 0.16);
  line-height: 1;
  letter-spacing: -0.03em;
}

/* The real app: big screens, each the top of a key */
.app-track {
  gap: clamp(24px, 3vw, 56px);
  align-items: center;
}
.app-intro {
  width: min(30vw, 420px);
}
.app-intro h2 {
  font-size: var(--t-hero);
  line-height: 0.95;
  letter-spacing: -0.035em;
}
.app-intro p {
  margin-top: 24px;
  max-width: 30ch;
}
.panel {
  margin: 0;
  width: min(62vw, 112svh);
}
.panel-key {
  border-radius: clamp(36px, 4vw, 64px);
  padding: clamp(14px, 1.4vw, 24px) clamp(18px, 1.8vw, 30px) clamp(40px, 4.4vw, 72px);
}
.panel-top {
  aspect-ratio: 16 / 10;
  border-radius: clamp(22px, 2.4vw, 40px);
  overflow: hidden;
  background: var(--carbon);
}
.panel-top img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left top;
}
.panel-cyan .panel-key {
  background: var(--cyan);
}
.panel-graphite .panel-key {
  background: var(--graphite-2);
}
.panel-paper .panel-key {
  background: var(--paper-2);
}
.panel figcaption {
  margin-top: 18px;
  display: flex;
  gap: 16px;
  align-items: baseline;
  flex-wrap: wrap;
}
.panel figcaption b {
  font: 600 var(--t-sub) / 1.2 var(--display);
}
.panel figcaption span {
  color: var(--soft);
}

/* --- Safety: inset panel ------------------------------------------------------ */

.safe {
  margin-top: var(--gap-section);
  padding-inline: 20px;
}
.safe-panel {
  position: relative;
  background: var(--graphite);
  border-radius: 48px;
  min-height: 88svh;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  max-width: 1600px;
  margin-inline: auto;
}
.safe-lead {
  padding: 56px;
  display: flex;
  flex-direction: column;
}
.safe-lead h2 {
  font-size: var(--t-head);
  line-height: 1;
  letter-spacing: -0.03em;
  max-width: 9em;
}
/* The picture in the keycap's shape, its lip cropped by the panel */
.safe-pic {
  margin-top: auto;
  width: min(38vw, 620px);
  aspect-ratio: 1;
  background: var(--cyan);
  border-radius: 23.2%;
  padding: 6.25% 9.8% 20.5%;
  display: flex;
  translate: 0 18%;
}
.safe-pic img {
  flex: 1;
  min-width: 0;
  object-fit: cover;
  object-position: left top;
  border-radius: 17%;
}
.safe-text {
  padding: 56px 56px 56px 26%;
  display: flex;
  flex-direction: column;
  gap: 56px;
  align-items: flex-start;
}
.safe-text h3 {
  font-size: var(--t-sub);
}
.safe-text p {
  margin-top: 12px;
  max-width: 36ch;
}

/* --- FAQ ------------------------------------------------------------------------ */

.faq {
  margin-top: var(--gap-section);
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 24px;
  align-items: start;
}
.faq-head {
  grid-column: 1 / span 4;
  position: sticky;
  top: 96px;
  font-size: var(--t-head);
  line-height: 1;
  letter-spacing: -0.03em;
}
.faq-list {
  grid-column: 5 / -1;
  display: grid;
  gap: 8px;
}
.faq details {
  background: var(--graphite);
  border-radius: 20px;
  transition: background-color 160ms linear;
}
.faq summary {
  list-style: none;
  cursor: pointer;
  min-height: 72px;
  padding: 20px 72px 20px 28px;
  position: relative;
  font: 500 var(--t-sub) / 1.3 var(--display);
  display: flex;
  align-items: center;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::before,
.faq summary::after {
  content: '';
  position: absolute;
  right: 28px;
  top: 50%;
  width: 16px;
  height: 3px;
  margin-top: -1.5px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 200ms var(--ease-out);
}
.faq summary::after {
  transform: rotate(90deg);
}
.faq details[open] {
  background: var(--cyan);
  color: var(--carbon);
}
.faq details[open] summary::after {
  transform: rotate(0deg);
}
.faq details p {
  padding: 0 28px 28px;
  max-width: 52ch;
  font-size: 17px;
}
.faq summary:hover {
  color: var(--cyan);
}
.faq details[open] summary:hover {
  color: var(--carbon);
}

/* --- Close ---------------------------------------------------------------------- */

.cta {
  margin-top: var(--gap-section);
}
.cta h2 {
  font-size: var(--t-hero);
  line-height: 0.95;
  letter-spacing: -0.035em;
  max-width: 10em;
}
.cta-row {
  margin-top: 48px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 32px;
}
.cta-row p {
  color: var(--soft);
  font-size: var(--t-small);
}

/* --- Footer: the mark, built large ----------------------------------------------- */

.foot {
  margin-top: var(--gap-section);
  background: var(--graphite);
  padding-block: 56px 40px;
}
.foot-mark {
  display: flex;
  align-items: flex-end;
  gap: clamp(16px, 3vw, 48px);
}
.foot-symbol {
  height: 34svh;
  min-height: 160px;
  width: auto;
}
.foot-word {
  flex: 1;
  min-width: 0;
  height: auto;
  max-height: 22svh;
  object-fit: contain;
  object-position: left bottom;
  margin-bottom: 3%;
}
.foot-links {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  font-size: var(--t-small);
}
.foot-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  align-content: start;
}
.foot-links a {
  text-decoration: none;
}
.foot-links a:hover {
  color: var(--cyan);
}
.foot-by {
  color: var(--soft);
  text-align: right;
}

/* --- Motion ------------------------------------------------------------------------
 * GSAP runs everything (main.js). Until it starts, the parts it animates are
 * hidden for a moment; if it never loads, an inline script shows them again.
 */

.js [data-split],
.js .hero .lead,
.js .hero .key,
.js .hero .fine,
.js .stage {
  visibility: hidden;
}
.gsap [data-split],
.gsap .hero .lead,
.gsap .hero .key,
.gsap .hero .fine,
.gsap .stage {
  visibility: visible;
}
.split-line {
  overflow: clip;
  padding-bottom: 0.08em;
  margin-bottom: -0.08em;
}
.cap.is-pressed {
  padding-top: calc(var(--cell) * 0.1);
  padding-bottom: calc(var(--cell) * 0.1675);
}

/* --- Phone and tablet ------------------------------------------------------------------ */

@media (max-width: 1100px) {
  .hero-copy {
    grid-column: 1 / span 6;
  }
  .stage {
    grid-column: 7 / -1;
  }
}

@media (max-width: 760px) {
  .nav nav {
    display: none;
  }
  .hero {
    display: block;
    padding-top: 40px;
  }
  .hero h1 {
    font-size: 15vw;
  }
  .lead {
    font-size: 18px;
    margin-top: 24px;
  }
  .stage {
    margin: 64px calc(-1 * var(--margin)) 0;
    border-radius: 48px;
    padding: 20px 20px 72px;
    min-height: 0;
  }
  .stage-top {
    border-radius: 30px;
    padding: 16px 0 0 16px;
    height: 520px;
  }
  .checkup {
    width: 620px;
  }
  .press {
    min-height: 86svh;
  }
  .press h2 {
    font-size: 11vw;
  }
  .press {
    min-height: 0;
    padding-bottom: 0;
  }
  .bigkey {
    position: relative;
    right: auto;
    bottom: auto;
    width: 92vw;
    margin: 40px 0 -18vw var(--margin);
  }
  .kb {
    gap: 4px;
  }
  .kb-row {
    gap: 4px;
  }
  .kb span {
    width: calc((100vw - 2 * var(--margin) - 36px) / 10);
    border-radius: 7px;
    padding: 2px 3px 7px;
  }
  .kb span::before {
    font-size: 13px;
    border-radius: 5px;
  }
  .kb-row:nth-child(2) {
    margin-left: 14px;
  }
  .kb-row:nth-child(3) {
    margin-left: 32px;
  }
  .kb-row:nth-child(4) {
    margin-left: 64px;
  }
  .kb .kb-space {
    width: 60vw;
    height: 34px;
  }
  .wall {
    --cell: min(64vw, 50svh);
  }
  .cap-note {
    font-size: 13px;
  }
  .app-intro {
    width: 78vw;
  }
  .app-intro h2 {
    font-size: 13vw;
  }
  .panel {
    width: 86vw;
  }
  .panel-top {
    aspect-ratio: 4 / 5;
  }
  .panel figcaption {
    display: grid;
    gap: 2px;
  }
  .safe {
    padding-inline: 10px;
  }
  .safe-panel {
    grid-template-columns: 1fr;
    border-radius: 32px;
    min-height: 0;
  }
  .safe-lead {
    padding: 32px 24px 0;
    display: contents;
  }
  .safe-lead h2 {
    padding: 32px 24px 0;
    font-size: 8.6vw;
    max-width: none;
  }
  .safe-text {
    padding: 32px 24px;
    gap: 32px;
  }
  .safe-pic {
    order: 3;
    width: 86vw;
    margin: 0 auto;
    translate: 0 25%;
  }
  .faq {
    display: block;
  }
  .faq-head {
    position: static;
    font-size: 11vw;
    margin-bottom: 24px;
  }
  .faq summary {
    font-size: 18px;
    min-height: 64px;
    padding: 18px 56px 18px 20px;
  }
  .faq summary::before,
  .faq summary::after {
    right: 20px;
  }
  .faq details p {
    padding: 0 20px 20px;
    font-size: 16px;
  }
  .cta h2 {
    font-size: 12vw;
  }
  .foot-symbol {
    height: 22svh;
    min-height: 110px;
  }
  .foot-links {
    grid-template-columns: 1fr 1fr;
  }
  .foot-by {
    grid-column: 1 / -1;
    text-align: left;
  }
}

/* The maker's name links to their portfolio */
.foot-by a {
  color: var(--paper);
  text-decoration: underline;
  text-underline-offset: 3px;
}