@font-face {
  font-family: 'Outfit';
  src: url('/Outfit.ttf') format('truetype');
  font-weight: 100 900;
  font-display: swap;
}

@font-face {
  font-family: 'Roboto';
  src: url('/fonts/Roboto-Regular.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: 'Roboto';
  src: url('/fonts/Roboto-Semibold.ttf') format('truetype');
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: 'Roboto Mono';
  src: url('/fonts/RobotoMono.ttf') format('truetype');
  font-weight: 100 700;
  font-display: swap;
}

:root {
  --pink: #e91e63;
  --pink-deep: #c2185b;
  --pink-light: #f06695;
  --violet: #8b5cf6;
  --lilac: #b79cf9;
  --sky: #38bdf8;
  --orange: #f2a65a;
  --ground: #0d0b16;
  --surface: #15151d;
  --surface-raised: #1c1b27;
  --line: rgba(255, 255, 255, 0.09);
  --ink: #fff;
  --ink-soft: rgba(255, 255, 255, 0.74);
  --ink-faint: rgba(255, 255, 255, 0.5);
  --display: 'Outfit', system-ui, sans-serif;
  --body: 'Roboto', system-ui, sans-serif;
  --mono: 'Roboto Mono', ui-monospace, monospace;
  /* pixijs.com's own ease, and a springy one that overshoots and settles */
  --ease: cubic-bezier(0.215, 0.61, 0.355, 1);
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --gutter: clamp(16px, 3.2vw, 44px);
  --topbar: 76px;
  color-scheme: dark;
}

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

html {
  background: var(--ground);
  color: var(--ink);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  overflow-x: clip;
}

img,
svg {
  display: block;
}

a {
  color: inherit;
}

button {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--pink-light);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--pink);
  color: #fff;
  font: 600 14px var(--body);
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 0.3s var(--spring);
}

.skip-link:focus {
  transform: none;
}

.accent {
  color: var(--pink);
}

/* ------------------------------------------------------------------ stage */

.stage {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0;
}

.stage canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
}

.stage canvas:active {
  cursor: grabbing;
}

.no-stage .stage {
  display: none;
}

/* ------------------------------------------------------------------ top bar */

.topbar {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  height: var(--topbar);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 var(--gutter);
  pointer-events: none;
}

.topbar > * {
  pointer-events: auto;
}

/* Once the page moves, a soft band of the ground colour keeps the bar legible over whatever passes under it */
.topbar::before {
  content: '';
  position: absolute;
  z-index: -1;
  inset: 0 0 -24px;
  background: linear-gradient(to bottom, rgba(13, 11, 22, 0.9), rgba(13, 11, 22, 0));
  opacity: var(--backing, 0);
}

.brand {
  justify-self: start;
  transition: transform 0.4s var(--spring);
}

.brand:hover {
  transform: rotate(-4deg) scale(1.06);
}

.nav {
  position: relative;
  display: flex;
  gap: 2px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(17, 16, 25, 0.62);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
}

.nav a {
  position: relative;
  z-index: 1;
  padding: 10px 17px;
  border-radius: 999px;
  color: var(--ink-soft);
  font: 500 15px/1 var(--display);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.25s var(--ease);
}

.nav a:hover,
.nav a[aria-current='page'] {
  color: #fff;
}

.nav a[aria-current='page']::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 3px;
  width: 4px;
  height: 4px;
  margin-left: -2px;
  border-radius: 50%;
  background: var(--pink);
}

.nav-blob {
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 0;
  width: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.09);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.github {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 999px;
  background: var(--pink);
  color: #fff;
  font: 600 15px/1 var(--display);
  text-decoration: none;
  box-shadow: 0 8px 22px rgba(233, 30, 99, 0.35);
  transition:
    transform 0.4s var(--spring),
    box-shadow 0.3s var(--ease),
    background 0.3s var(--ease);
}

.github:hover {
  transform: translateY(-2px) rotate(-2deg);
  background: var(--pink-light);
  box-shadow: 0 14px 30px rgba(233, 30, 99, 0.45);
}

.github svg {
  transition: transform 0.5s var(--spring);
}

.github:hover svg {
  transform: rotate(-16deg) scale(1.12);
}

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

.hero {
  position: relative;
  z-index: 1;
  height: 100vh;
  height: 100svh;
  min-height: 600px;
  pointer-events: none;
}

.hero-copy,
.ring-nav,
.hero-foot > *,
.shelf-plain {
  pointer-events: auto;
}

.hero-copy {
  position: absolute;
  top: calc(var(--topbar) + clamp(8px, 3vh, 36px));
  left: var(--gutter);
  max-width: min(560px, 70vw);
}

.hero-copy h1 {
  margin: 0;
  font: 700 clamp(46px, 5.4vw, 92px) / 0.88 var(--display);
  letter-spacing: -0.035em;
  text-shadow: 0 6px 30px rgba(6, 4, 12, 0.5);
}

.lede {
  max-width: 29ch;
  margin: clamp(12px, 2vh, 20px) 0 0;
  color: var(--ink-soft);
  font-size: clamp(16px, 1.25vw, 19px);
  line-height: 1.5;
  text-shadow: 0 2px 16px rgba(6, 4, 12, 0.7);
}

/* The round arrow buttons at the side of the ring */
.ring-nav {
  position: absolute;
  top: 50%;
  right: var(--gutter);
  display: grid;
  gap: 12px;
  transform: translateY(-50%);
}

.round-button {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  background: rgba(20, 18, 30, 0.55);
  cursor: pointer;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition:
    transform 0.45s var(--spring),
    background 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.round-button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.45s var(--spring);
}

.round-button:hover {
  background: var(--pink);
  border-color: var(--pink);
  transform: scale(1.1);
}

.round-button[data-go='-1']:hover svg {
  transform: translateX(-2px);
}

.round-button[data-go='1']:hover svg {
  transform: translateX(2px);
}

.round-button:active {
  transform: scale(0.88, 0.94);
}

/* Bottom of the hero: what to do with the slide in front */
.hero-foot {
  position: absolute;
  right: var(--gutter);
  bottom: clamp(20px, 4.5vh, 44px);
  left: var(--gutter);
  pointer-events: none;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.tags li {
  padding: 7px 12px 6px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(12, 11, 18, 0.5);
  color: var(--ink-soft);
  font: 600 11px/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
}

.actions-center {
  justify-content: center;
}

/* pixijs.com's call to action, rounded into a pill: a fill that sweeps across and a shadow outline set off below */
.cta {
  --c: var(--pink);
  --c-deep: var(--pink-deep);
  --text: #fff;
  --text-hover: #fff;
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 54px;
  padding: 0 28px;
  border-radius: 999px;
  background: var(--c);
  color: var(--text);
  font: 600 14px/1 var(--body);
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
  transition:
    transform 0.4s var(--spring),
    color 0.25s var(--ease);
}

.cta::before {
  content: '';
  position: absolute;
  z-index: -1;
  inset: 0;
  border-radius: inherit;
  background: var(--c-deep);
  clip-path: inset(0 100% 0 0 round 999px);
  transition: clip-path 0.35s var(--ease);
}

.cta::after {
  content: '';
  position: absolute;
  z-index: -2;
  inset: 0;
  border: 2px solid transparent;
  border-right-color: var(--c);
  border-bottom-color: var(--c);
  border-radius: inherit;
  transform: translate(6px, 6px);
  transition: transform 0.4s var(--spring);
}

.cta-arrow {
  transition: transform 0.4s var(--spring);
}

.cta:hover {
  color: var(--text-hover);
  transform: translate(2px, 2px);
}

.cta:hover::before {
  clip-path: inset(0 0 0 0 round 999px);
}

.cta:hover::after {
  transform: translate(3px, 3px);
}

.cta:hover .cta-arrow {
  transform: translate(3px, -3px) scale(1.1);
}

.cta:active {
  transform: translate(5px, 5px) scale(0.98);
}

.cta:active::after {
  transform: translate(0, 0);
}

.cta-outline {
  --c-deep: var(--c);
  --text: var(--c);
  background: rgba(12, 11, 18, 0.35);
  box-shadow: inset 0 0 0 2px var(--c);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.cta-outline::after {
  transform: translate(8px, 8px);
}

.cta-white {
  --c: #fff;
  --text-hover: var(--pink);
}

.hint {
  position: absolute;
  bottom: 10px;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--ink-faint);
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
  transform: translateX(-50%);
}

.hint-hand svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* The label that rides beside the pointer over the stage */
.cursor {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  pointer-events: none;
}

.cursor-label {
  display: block;
  margin: 20px 0 0 18px;
  padding: 8px 12px 7px;
  border-radius: 999px;
  background: rgba(20, 18, 30, 0.78);
  color: #fff;
  font: 700 11px/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
  box-shadow: 3px 3px 0 rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transform: scale(0);
  transform-origin: 0 0;
  transition:
    background 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
}

.cursor[data-target='front'] .cursor-label {
  background: var(--pink);
  box-shadow: 3px 3px 0 #fff;
}

.cursor[data-target='side'] .cursor-label {
  background: var(--violet);
  box-shadow: 3px 3px 0 #fff;
}

.cursor[data-target='drag'] .cursor-label {
  background: #fff;
  color: var(--pink);
  box-shadow: 3px 3px 0 var(--pink);
}

.cursor[data-target='shape'] .cursor-label {
  background: var(--sky);
  color: #07060b;
  box-shadow: 3px 3px 0 #fff;
}

@media (hover: none) {
  .cursor {
    display: none;
  }
}

/* The plain shelf, for browsers the stage can't run in */
.shelf-plain {
  display: none;
}

.no-stage .hero {
  height: auto;
  min-height: 0;
  padding: calc(var(--topbar) + 40px) var(--gutter) 64px;
}

.no-stage .hero-copy {
  position: relative;
  top: 0;
  left: 0;
}

.no-stage .ring-nav,
.no-stage .hero-foot,
.no-stage .hint {
  display: none;
}

.no-stage .shelf-plain {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: 28px;
  margin: 56px 0 0;
  padding: 0;
  list-style: none;
}

.shelf-card a {
  display: grid;
  gap: 10px;
  padding: 12px 12px 22px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--surface);
  text-decoration: none;
  transition:
    transform 0.45s var(--spring),
    box-shadow 0.35s var(--ease);
}

.shelf-card a:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0 var(--accent);
}

.shelf-card img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.shelf-chip {
  justify-self: start;
  margin: 8px 8px 0;
  padding: 6px 11px 5px;
  border-radius: 999px;
  background: var(--accent);
  font: 700 11px/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.shelf-card strong {
  margin: 0 8px;
  font: 700 28px/1.05 var(--display);
}

.shelf-copy {
  margin: 0 8px;
  color: var(--ink-soft);
  line-height: 1.5;
}

/* ------------------------------------------------------------------ sections below the hero */

.about,
.closing {
  position: relative;
  z-index: 1;
}

/* Clicks on the space round the text reach the clay shapes behind it */
.about {
  padding: clamp(120px, 24vh, 240px) var(--gutter) clamp(140px, 22vh, 240px);
  text-align: center;
  pointer-events: none;
}

.about .container > * {
  pointer-events: auto;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 24px;
  padding: 9px 15px 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  color: var(--ink-soft);
  font: 600 12px/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pink);
  box-shadow: 0 0 12px var(--pink);
}

.section-title {
  max-width: 13ch;
  margin: 0 auto;
  font: 700 clamp(44px, 6vw, 92px) / 1 var(--display);
  letter-spacing: -0.035em;
  text-shadow: 0 4px 30px rgba(6, 4, 12, 0.6);
  text-wrap: balance;
}

.section-title .accent {
  position: relative;
  display: inline-block;
  color: var(--pink);
}

/* A hand-drawn squiggle under the word, drawn in as the heading arrives */
.squiggle {
  position: absolute;
  bottom: -0.24em;
  left: -2%;
  width: 104%;
  height: 0.3em;
  overflow: visible;
  fill: none;
  stroke: var(--pink);
  stroke-width: 5;
  stroke-linecap: round;
}

.section-lede {
  max-width: 50ch;
  margin: 30px auto 0;
  color: var(--ink-soft);
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.6;
  text-shadow: 0 1px 10px rgba(6, 4, 12, 0.7);
  text-wrap: pretty;
}

/* Renders of the stage's own clay shapes (scripts/render-shapes), bobbing at the card's corners */
.shape {
  position: absolute;
  width: var(--size);
  height: auto;
  filter: drop-shadow(0 18px 22px rgba(4, 2, 12, 0.55));
  pointer-events: none;
}

.shape-capsule {
  --size: clamp(104px, 12vw, 168px);
  top: -72px;
  left: 3%;
}

.shape-torus {
  --size: clamp(84px, 9vw, 132px);
  top: -54px;
  right: 6%;
}

.shape-tetra {
  --size: clamp(84px, 9vw, 128px);
  right: 3%;
  bottom: -56px;
}

.shape-cube {
  --size: clamp(72px, 8vw, 112px);
  bottom: -44px;
  left: 8%;
}

.closing {
  padding: clamp(160px, 26vh, 280px) var(--gutter) clamp(80px, 14vh, 160px);
  background: linear-gradient(to bottom, rgba(13, 11, 22, 0), var(--ground) clamp(120px, 22vh, 240px));
}

.closing-card {
  position: relative;
  max-width: 1040px;
  margin: 0 auto;
  padding: clamp(56px, 9vh, 96px) clamp(24px, 5vw, 72px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 44px;
  background:
    radial-gradient(90% 120% at 50% 0%, rgba(233, 30, 99, 0.24), transparent 60%),
    linear-gradient(180deg, rgba(42, 33, 70, 0.5), rgba(14, 11, 26, 0.8));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 40px 80px -30px rgba(4, 2, 12, 0.9);
  backdrop-filter: blur(18px) saturate(1.3);
  text-align: center;
}

.closing-title {
  margin: 0;
  font: 700 clamp(56px, 9vw, 136px) / 0.95 var(--display);
  letter-spacing: -0.04em;
}

/* "3D", set as an extruded block of pink */
.closing-title .accent {
  display: inline-block;
  text-shadow:
    1px 1px 0 #c2185b,
    2px 2px 0 #c2185b,
    3px 3px 0 #b0164f,
    4px 4px 0 #b0164f,
    5px 5px 0 #9d1347,
    6px 6px 0 #9d1347,
    7px 7px 0 #8a103e,
    8px 8px 0 #8a103e,
    12px 16px 24px rgba(0, 0, 0, 0.45);
  transition:
    transform 0.5s var(--spring),
    text-shadow 0.5s var(--ease);
}

.closing-title:hover .accent {
  transform: translate(-3px, -3px) rotate(-3deg);
}

.closing-card p {
  max-width: 44ch;
  margin: 26px auto 38px;
  color: var(--ink-soft);
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.6;
}

.footer {
  position: relative;
  z-index: 1;
  display: grid;
  justify-items: center;
  gap: 14px;
  padding: 56px var(--gutter) 64px;
  border-top: 1px solid var(--line);
  background: var(--ground);
  color: var(--ink-faint);
  font-size: 14px;
  text-align: center;
}

.footer p {
  margin: 0;
}

.footer a {
  color: #fff;
}

.socials {
  display: flex;
  gap: 10px;
}

.socials a {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--surface);
  transition:
    transform 0.4s var(--spring),
    background 0.25s var(--ease);
}

.socials a:hover {
  background: var(--pink);
  transform: translateY(-3px) rotate(-8deg);
}

.credit {
  font-size: 12px;
}

/* The ground that closes over the page as a demo launches */
.curtain {
  position: fixed;
  z-index: 50;
  inset: 0;
  background: var(--ground);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Hidden until the entrance takes them over, so they never flash in ahead of it */
.intro-pending :is(.hero-copy h1, .lede, .ring-nav, .details, .hint) {
  visibility: hidden;
}

/* ------------------------------------------------------------------ small screens */

@media (max-width: 860px) {
  .nav {
    display: none;
  }

  .topbar {
    grid-template-columns: 1fr 1fr;
  }

  /* Level with the Launch button */
  .ring-nav {
    top: auto;
    bottom: calc(clamp(20px, 4.5vh, 44px) + 6px);
    grid-auto-flow: column;
    gap: 8px;
    transform: none;
  }

  .round-button {
    width: 42px;
    height: 42px;
  }

  .hint {
    display: none;
  }
}

@media (max-width: 520px) {
  :root {
    --topbar: 64px;
  }

  .github span {
    display: none;
  }

  .github {
    padding: 11px;
  }

  .cta {
    height: 50px;
    padding: 0 22px;
    font-size: 13px;
  }

  .cta-outline {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
}