@font-face {
  font-family: "Inconsolata";
  src: url("assets/fonts/Inconsolata-VariableFont_wdth,wght.ttf") format("truetype");
  font-weight: 100 900;
  font-stretch: 50% 200%;
  font-style: normal;
  font-display: swap;
}

:root {
  --blue: #000db2;
  --paper: #e9e8dc;
  --type: rgba(233, 232, 220, 0.92);
  --line: rgba(233, 232, 220, 0.88);
  --frame-pad: clamp(2.1rem, 3vw, 3.6rem);
  --stack-gap: clamp(1.55rem, 2vw, 2.45rem);
  --quiet-type: rgba(255, 255, 255, 0.35);
  --utility-font: 400 0.73rem/1 var(--mono);
  --utility-spacing: 0.045em;
  --modal-font: 400 0.82rem/1.42 var(--mono);
  --modal-spacing: 0.02em;
  --mono: "Inconsolata", "Courier New", Courier, monospace;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--blue);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--type);
  background:
    radial-gradient(circle at 63% 42%, rgba(25, 45, 220, 0.28), transparent 34rem),
    linear-gradient(180deg, #0010ba 0%, var(--blue) 54%, #000aa5 100%);
  font-family: var(--mono);
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: -50%;
  pointer-events: none;
  content: "";
  opacity: 0.48;
  background-image: url("assets/grain.svg");
  background-repeat: repeat;
  background-size: 150px 150px;
  filter: contrast(185%) brightness(125%);
  mix-blend-mode: soft-light;
}

body::after {
  position: fixed;
  inset: -50%;
  pointer-events: none;
  content: "";
  opacity: 0.16;
  background-image: url("assets/grain.svg");
  background-repeat: repeat;
  background-size: 58px 58px;
  mix-blend-mode: overlay;
}

.top-meta {
  position: fixed;
  top: clamp(2rem, 3.4vw, 4.25rem);
  left: var(--frame-pad);
  right: var(--frame-pad);
  z-index: 10;
  display: flex;
  gap: 1.35rem;
  align-items: center;
  justify-content: flex-end;
  color: var(--quiet-type);
  font: var(--utility-font);
  letter-spacing: var(--utility-spacing);
}

.top-meta a {
  color: inherit;
  text-decoration: none;
}

.top-meta a:hover,
.top-meta a:focus-visible {
  color: var(--paper);
  outline: 0;
}

@media (prefers-reduced-motion: reduce) {
  .intro,
  .wordmark {
    animation: none;
  }
}

.site-shell {
  position: relative;
  display: grid;
  grid-template-rows: minmax(42vh, 1fr) auto;
  min-height: 100vh;
  padding: clamp(2rem, 3.4vw, 4.25rem) var(--frame-pad) 0;
}

.intro {
  align-self: end;
  width: min(75rem, 64vw);
  padding-bottom: calc(var(--stack-gap) * 1.28);
  animation: intro-arrive 680ms ease-out both;
}

.mark {
  display: block;
  width: clamp(5.6rem, 5.1vw, 6.7rem);
  height: auto;
  margin-bottom: var(--stack-gap);
}

.copy-block {
  max-width: 73rem;
  margin-bottom: var(--stack-gap);
}

.copy-block p {
  margin: 0;
  font-size: clamp(1.02rem, calc(0.86vw + 0.083rem), 1.2rem);
  font-weight: 360;
  line-height: 1.45;
  letter-spacing: 0;
}

.action-row {
  display: flex;
  align-items: stretch;
  gap: 0.85rem;
  width: fit-content;
}

.signup {
  display: grid;
  grid-template-columns: minmax(18rem, 21.4rem) 5.9rem;
  width: fit-content;
  border: 1px solid var(--line);
}

.signup input,
.signup button,
.end-button {
  height: 2.35rem;
  border: 0;
  color: var(--type);
  background: transparent;
  font: var(--utility-font);
  letter-spacing: var(--utility-spacing);
}

.signup input {
  width: 100%;
  padding: 0 1rem;
  outline: 0;
}

.signup button {
  border-left: 1px solid var(--line);
}

.signup button:disabled {
  cursor: default;
}

.signup input::placeholder {
  color: var(--type);
  opacity: 1;
}

.signup input:focus {
  box-shadow: inset 0 0 0 1px var(--paper);
}

.signup button,
.end-button {
  cursor: pointer;
}

.signup button:hover,
.signup button:focus-visible,
.end-button:hover,
.end-button:focus-visible {
  color: var(--blue);
  background: var(--paper);
  outline: 0;
}

.end-button {
  min-width: 9rem;
  border: 1px dashed rgba(233, 232, 220, 0.5);
  color: var(--quiet-type);
  white-space: nowrap;
}

.end-button:hover,
.end-button:focus-visible {
  color: var(--blue);
}

.field-message {
  display: inline-block;
  margin: 0 0 0.85rem;
  padding: 0.65rem 0.75rem;
  color: var(--paper);
  background: #000;
  font: var(--utility-font);
  letter-spacing: var(--utility-spacing);
}

.field-message[hidden] {
  display: none;
}

.buttondown-frame {
  position: absolute;
  width: 0;
  height: 0;
  border: 0;
  opacity: 0;
  pointer-events: none;
}

.is-gone {
  visibility: hidden;
}

.write-word {
  visibility: hidden;
}

.write-word.is-visible {
  visibility: visible;
}

.ending-message {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 20;
  display: none;
  width: min(28rem, calc(100vw - 2rem));
  margin: 0;
  color: var(--type);
  font: 400 0.9rem/1.2 var(--mono);
  letter-spacing: 0.045em;
  text-align: center;
  transform: translate(-50%, -50%);
}

body.has-ended {
  background: #000;
}

body.has-ended::before,
body.has-ended::after {
  display: none;
}

body.has-ended .site-shell {
  visibility: hidden;
}

body.has-ended .top-meta {
  display: none;
}

body.has-ended .ending-message {
  display: block;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: block;
  padding: var(--frame-pad);
  color: var(--paper);
  background: transparent;
}

.modal[hidden] {
  display: none;
}

.modal-panel {
  width: min(33rem, 100%);
  margin-left: auto;
  padding: 1.35rem;
  color: var(--paper);
  background: #000;
  font: var(--modal-font);
  letter-spacing: var(--modal-spacing);
}

.modal-panel h2 {
  margin: 0 0 1.2rem;
  font: var(--modal-font);
  letter-spacing: var(--modal-spacing);
}

.modal-panel p {
  margin: 0 0 1rem;
}

.modal-close {
  width: 100%;
  height: auto;
  margin-top: 0.6rem;
  padding: 0;
  border: 0;
  color: var(--quiet-type);
  background: transparent;
  font: var(--modal-font);
  letter-spacing: var(--modal-spacing);
  text-align: left;
  cursor: pointer;
}

.modal-close:hover,
.modal-close:focus-visible {
  color: var(--paper);
  background: transparent;
  outline: 0;
}

.wordmark {
  display: block;
  width: 100%;
  max-width: none;
  height: auto;
  margin: 0 0 var(--frame-pad);
  user-select: none;
  animation: wordmark-arrive 850ms 120ms ease-out both;
}

.wordmark-mobile {
  display: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 760px) {
  :root {
    --frame-pad: 1.15rem;
    --stack-gap: 2rem;
    --utility-font: 400 clamp(0.72rem, 3vw, 0.94rem)/1 var(--mono);
  }

  .site-shell {
    grid-template-rows: minmax(47vh, 1fr) auto;
    min-height: 100svh;
    padding: 2.15rem var(--frame-pad) 0;
  }

  .top-meta {
    top: 2.15rem;
    flex-wrap: wrap;
    gap: 0.7rem 1rem;
    font-size: clamp(0.62rem, 2.45vw, 0.78rem);
  }

  .intro {
    width: 100%;
    align-self: end;
    padding-bottom: 2.65rem;
  }

  .mark {
    width: clamp(5.8rem, 24vw, 7.2rem);
    margin-bottom: 2rem;
  }

  .copy-block {
    margin-bottom: 1.85rem;
  }

  .copy-block p {
    max-width: none;
    font-size: clamp(0.96rem, 3.75vw, 1.18rem);
    font-weight: 360;
    line-height: 1.48;
  }

  .action-row {
    display: grid;
    gap: 0.75rem;
    width: 100%;
  }

  .signup {
    grid-template-columns: minmax(0, 1fr) clamp(5.4rem, 23vw, 7.2rem);
    width: 100%;
  }

  .signup input,
  .signup button,
  .end-button {
    height: clamp(2.25rem, 8.8vw, 2.75rem);
  }

  .end-button {
    width: 100%;
    min-width: 0;
  }

  .signup input {
    padding: 0 clamp(0.85rem, 3.6vw, 1.1rem);
  }

  .wordmark-desktop {
    display: none;
  }

  .wordmark-mobile {
    display: block;
    width: 100%;
    margin: 0 0 var(--frame-pad);
  }
}

@keyframes intro-arrive {
  from {
    opacity: 0;
    transform: translateY(0.55rem);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes wordmark-arrive {
  from {
    opacity: 0;
    transform: translateY(0.45rem);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}