:root {
  --blue: #1800ad;
  --butter: #fbffb8;
  --lime: #c1ff72;
  --red: #ff0000;
  --white: #ffffff;
  --serif: "Times New Roman", Times, serif;
  --sans: Arial, Helvetica, sans-serif;
  --header-height: 74px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--butter);
  background: var(--blue);
  font-family: var(--serif);
  overflow-x: hidden;
  cursor: none;
}

button,
a,
textarea {
  font: inherit;
}

button,
a {
  cursor: none;
}

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

a {
  color: inherit;
  text-decoration: none;
}

p {
  margin-top: 0;
}

section {
  scroll-margin-top: calc(var(--header-height) + 18px);
}

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


/* CURSOR */

.bird-cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 99999;
  display: block;
  width: 54px;
  height: auto;
  opacity: 0;
  pointer-events: none;
  transform: translate(-18%, -28%);
  transition: opacity 120ms ease;
}

.bird-cursor.is-visible {
  opacity: 1;
}


/* INTRO */

.intro {
  position: fixed;
  inset: 0;
  z-index: 5000;
  display: grid;
  place-items: center;
  min-height: 100svh;
  padding: 35px;
  color: var(--white);
  background: var(--blue);
  opacity: 1;
  visibility: visible;
  transition:
    opacity 700ms ease,
    visibility 700ms ease;
}

.intro.is-leaving {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.intro.is-hidden {
  display: none;
}

.intro-content {
  width: min(96vw, 1900px);
  text-align: center;
}

.intro-tagline {
  margin: 0 0 clamp(18px, 3vh, 38px);
  color: var(--butter);
  font-family: var(--sans);
  font-size: clamp(0.72rem, 1vw, 1rem);
  font-weight: 700;
  letter-spacing: 0.28em;
}

.intro-wordmark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  line-height: 0.78;
}

.intro-the,
.intro-listening {
  color: var(--white);
  font-size: clamp(6rem, 13.5vw, 17rem);
  font-weight: 400;
  letter-spacing: -0.07em;
  white-space: nowrap;
}

.intro-listening {
  font-style: italic;
}

.intro-acorn-frame {
  position: relative;
  width: clamp(300px, 28vw, 570px);
  aspect-ratio: 1 / 1;
  margin: 0 clamp(-80px, -3vw, -25px);
  overflow: hidden;
  flex: 0 0 auto;
}

.intro-acorn {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 185%;
  max-width: none;
  height: auto;
  transform: translate(-50%, -50%);
}

.artwork-credit {
  margin: clamp(12px, 2vh, 28px) 0 0;
  color: var(--butter);
  font-family: var(--sans);
  font-size: clamp(0.52rem, 0.7vw, 0.72rem);
  letter-spacing: 0.01em;
  word-spacing: 0.01em;
}

.enter-button {
  display: inline-flex;
  justify-content: center;
  margin: clamp(55px, 8vh, 100px) auto 0;
  padding: 0 0 9px;
  color: var(--lime);
  background: transparent;
  border: 0;
  border-bottom: 2px solid var(--lime);
  font-family: var(--sans);
  font-size: clamp(0.7rem, 1vw, 0.95rem);
  font-weight: 700;
  letter-spacing: 0.16em;
  transition:
    color 200ms ease,
    border-color 200ms ease,
    transform 200ms ease;
}

.enter-button:hover,
.enter-button:focus-visible {
  color: var(--white);
  border-color: var(--white);
  transform: translateY(-3px);
}


/* HEADER */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: var(--header-height);
  padding: 0 3vw;
  color: var(--butter);
  background: var(--blue);
  border-bottom: 1px solid rgba(251, 255, 184, 0.45);
}

.small-wordmark {
  flex: 0 0 auto;
  font-size: clamp(1.35rem, 2vw, 2rem);
  white-space: nowrap;
}

.small-wordmark em {
  font-weight: 400;
}

.main-navigation {
  display: flex;
  align-items: center;
  gap: clamp(25px, 4.5vw, 80px);
  margin-left: 35px;
  font-family: var(--sans);
  font-size: clamp(0.58rem, 0.72vw, 0.78rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.main-navigation a {
  position: relative;
}

.main-navigation a::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 1px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 200ms ease;
}

.main-navigation a:hover::after,
.main-navigation a:focus-visible::after {
  transform: scaleX(1);
}


/* INTERACTIVE ECOSYSTEM */

.ecosystem-section {
  position: relative;
  min-height: 100svh;
  padding-top: var(--header-height);
  color: var(--butter);
  background: var(--blue);
  overflow: hidden;
}

.ecosystem-canvas {
  position: absolute;
  inset: var(--header-height) 0 0;
  overflow: hidden;
}

.ecosystem-prompt {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 80;
  width: min(90%, 1000px);
  text-align: center;
  transform: translate(-50%, -50%);
  transition:
    opacity 500ms ease,
    visibility 500ms ease;
}

.ecosystem-prompt.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.ecosystem-prompt p {
  margin: 0 0 18px;
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
}

.ecosystem-prompt h1 {
  margin: 0;
  font-size: clamp(4rem, 11vw, 10.5rem);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: 0.79;
}

.ecosystem-prompt h1 span {
  display: block;
}

.ecosystem-prompt small {
  display: block;
  margin-top: 30px;
  font-family: var(--sans);
  font-size: 0.73rem;
  letter-spacing: 0.07em;
  opacity: 0.75;
}

.ecosystem-object {
  position: absolute;
  z-index: 20;
  height: auto;
  opacity: 0;
  pointer-events: none;
  transform:
    translate(-50%, -50%)
    scale(0.65)
    rotate(var(--rotation));
  transform-origin: center;
  transition:
    opacity 500ms ease,
    transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}

.ecosystem-object.is-visible {
  opacity: 1;
  transform:
    translate(-50%, -50%)
    scale(1)
    rotate(var(--rotation));
}

.ecosystem-instruction {
  position: absolute;
  bottom: 20px;
  left: 50%;
  z-index: 100;
  margin: 0;
  font-family: var(--sans);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  opacity: 0.7;
  transform: translateX(-50%);
  white-space: nowrap;
}

.sound-toggle {
  position: absolute;
  right: 26px;
  bottom: 20px;
  z-index: 200;
  padding: 8px 0;
  color: var(--butter);
  background: transparent;
  border: 0;
  border-bottom: 1px solid currentColor;
  font-family: var(--sans);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.sound-toggle.sound-off {
  opacity: 0.55;
}


/* LETTERS */

.letter-layer {
  position: absolute;
  inset: 0;
  z-index: 140;
  pointer-events: none;
}

.future-letter {
  position: absolute;
  z-index: 150;
  width: clamp(210px, 25vw, 350px);
  padding: 23px;
  color: var(--blue);
  background: var(--butter);
  box-shadow: 0 12px 40px rgba(5, 0, 60, 0.18);
  opacity: 0;
  pointer-events: auto;
  transition: opacity 500ms ease;
}

.future-letter.is-visible {
  opacity: 1;
}

.future-letter small {
  display: block;
  margin-bottom: 13px;
  font-family: var(--sans);
  font-size: 0.51rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.future-letter p {
  margin: 0;
  overflow-wrap: anywhere;
  font-size: clamp(1rem, 1.7vw, 1.4rem);
  line-height: 1.25;
}


/* LETTER DIALOGUE */

.letter-window {
  position: fixed;
  inset: 0;
  z-index: 6000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 25px;
  color: var(--blue);
  background: rgba(8, 0, 76, 0.84);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 300ms ease,
    visibility 300ms ease;
}

.letter-window.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.letter-dialog {
  position: relative;
  width: min(100%, 680px);
  padding: clamp(28px, 5vw, 58px);
  background: var(--butter);
  transform: scale(0.96);
  transition: transform 300ms ease;
}

.letter-window.is-visible .letter-dialog {
  transform: scale(1);
}

.letter-close {
  position: absolute;
  top: 16px;
  right: 18px;
  padding: 4px 8px;
  color: var(--blue);
  background: transparent;
  border: 0;
  font-family: var(--sans);
  font-size: 1.5rem;
}

.letter-label {
  margin-bottom: 18px;
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.letter-dialog h2 {
  max-width: 570px;
  margin: 0 0 18px;
  font-size: clamp(2rem, 5vw, 4rem);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.letter-introduction {
  max-width: 520px;
  font-size: 1rem;
  line-height: 1.45;
}

#letterInput {
  width: 100%;
  min-height: 150px;
  padding: 17px;
  color: var(--blue);
  background: rgba(255, 255, 255, 0.4);
  border: 1px solid var(--blue);
  border-radius: 0;
  resize: vertical;
  outline: none;
  font-family: var(--serif);
  font-size: 1.2rem;
  line-height: 1.4;
}

#letterInput:focus {
  box-shadow: 0 0 0 2px var(--blue);
}

.letter-form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 15px;
}

.letter-counter {
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 700;
}

.letter-button-group {
  display: flex;
  gap: 12px;
}

.letter-skip,
.letter-submit {
  padding: 12px 15px;
  font-family: var(--sans);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.09em;
}

.letter-skip {
  color: var(--blue);
  background: transparent;
  border: 1px solid var(--blue);
}

.letter-submit {
  color: var(--butter);
  background: var(--blue);
  border: 1px solid var(--blue);
}

.letter-tab {
  position: fixed;
  top: 50%;
  right: 0;
  z-index: 950;
  display: none;
  padding: 14px 11px;
  color: var(--blue);
  background: var(--lime);
  border: 0;
  font-family: var(--sans);
  font-size: 0.61rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  writing-mode: vertical-rl;
  transform: translateY(-50%);
}

.letter-tab.is-visible {
  display: block;
}


/* CONTENT */

.content-section,
.archive-preview {
  display: grid;
  grid-template-columns:
    minmax(0, 1.15fr)
    minmax(320px, 0.85fr);
  gap: clamp(55px, 8vw, 160px);
  align-items: center;
  min-height: 100svh;
  padding:
    clamp(120px, 13vw, 210px)
    clamp(35px, 5vw, 100px);
}

.section-label {
  margin-bottom: clamp(55px, 8vh, 110px);
  font-family: var(--sans);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.section-heading h2,
.archive-preview h2 {
  max-width: 100%;
  margin: 0;
  font-size: clamp(4rem, 8.5vw, 10rem);
  font-weight: 400;
  letter-spacing: -0.07em;
  line-height: 0.76;
}

.section-heading h2 em,
.archive-preview h2 em {
  font-weight: 400;
}

.section-copy {
  max-width: 700px;
  font-size: clamp(1.15rem, 1.7vw, 2rem);
  line-height: 1.34;
}

.section-copy p {
  margin-bottom: 1.25em;
}

.lead-copy {
  font-size: clamp(1.65rem, 2.7vw, 3.2rem);
  line-height: 1.08;
}

.idea-section {
  color: var(--butter);
  background: var(--blue);
}

.living-system-section {
  color: var(--blue);
  background: var(--lime);
}

.field-section {
  color: var(--blue);
  background: var(--butter);
}

.seeded-section {
  color: var(--blue);
  background: var(--lime);
}


/* SPECIAL RED ELEMENTS */

.special-red {
  color: var(--red) !important;
}

.ecosystem-quote {
  margin: 45px 0 0;
  padding: 25px 0 0;
  border-top: 1px solid currentColor;
  font-size: clamp(1.45rem, 2.4vw, 2.8rem);
  font-style: italic;
  line-height: 1.1;
}

.ecosystem-quote.special-red {
  border-top-color: var(--red);
}

.chiffchaff-note {
  margin-top: 45px;
  padding-top: 30px;
  border-top: 1px solid currentColor;
}

.small-heading {
  font-family: var(--sans);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}


/* ARCHIVE */

.archive-preview {
  min-height: auto;
  color: var(--butter);
  background: var(--blue);
}

.archive-copy {
  max-width: 700px;
  font-size: clamp(1.15rem, 1.6vw, 1.75rem);
  line-height: 1.4;
}

.archive-copy p {
  margin-bottom: 1.25em;
}

.archive-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 35px 0;
}

.archive-list span {
  padding: 9px 12px;
  border: 1px solid currentColor;
  font-family: var(--sans);
  font-size: 0.57rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.coming-soon {
  display: inline-block;
  margin-top: 10px;
  padding: 14px 0 9px;
  border-bottom: 2px solid var(--lime);
  color: var(--lime);
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.13em;
}


/* FOUNDER */

.founder-introduction {
  font-size: clamp(1.4rem, 2.2vw, 2.5rem);
  line-height: 1.15;
}

.founder-quote {
  margin: 40px 0 0;
  padding: 30px 0 0;
  border-top: 1px solid currentColor;
}

.founder-quote p {
  font-size: clamp(1.1rem, 1.55vw, 1.7rem);
  line-height: 1.4;
}


/* JOIN */

.join-section {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  min-height: 100svh;
  padding:
    clamp(120px, 13vw, 210px)
    clamp(35px, 8vw, 150px);
  color: var(--butter);
  background: var(--blue);
}

.join-section h2 {
  margin: 0 0 55px;
  font-size: clamp(5rem, 11vw, 13rem);
  font-weight: 400;
  letter-spacing: -0.075em;
  line-height: 0.77;
}

.join-section h2 em {
  font-weight: 400;
}

.join-section > p:not(.section-label) {
  width: min(100%, 760px);
  font-size: clamp(1.2rem, 1.8vw, 2rem);
  line-height: 1.4;
}

.join-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 30px;
  margin-top: 35px;
}

.contact-button {
  display: inline-block;
  padding: 14px 0 9px;
  border-bottom: 2px solid var(--lime);
  color: var(--lime);
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.instagram-link {
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}


/* FOOTER */

footer {
  display: grid;
  grid-template-columns: repeat(4, auto);
  gap: 30px;
  align-items: center;
  justify-content: space-between;
  padding: 28px 3vw;
  color: var(--butter);
  background: var(--blue);
  border-top: 1px solid rgba(251, 255, 184, 0.45);
  font-family: var(--sans);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
}

.footer-wordmark {
  font-family: var(--serif);
  font-size: 1.45rem;
  letter-spacing: 0;
}

.footer-wordmark em {
  font-weight: 400;
}

footer p {
  margin: 0;
}


/* TABLET */

@media (max-width: 1000px) {

  :root {
    --header-height: 108px;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
    padding: 15px 22px;
  }

  .main-navigation {
    width: 100%;
    margin-left: 0;
    padding-bottom: 4px;
    gap: 28px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .main-navigation::-webkit-scrollbar {
    display: none;
  }

  .content-section,
  .archive-preview {
    grid-template-columns: 1fr;
    gap: 60px;
    min-height: auto;
    padding:
      clamp(150px, 20vw, 210px)
      clamp(25px, 7vw, 65px)
      clamp(100px, 15vw, 160px);
  }

  .section-label {
    margin-bottom: 50px;
  }

  .section-heading h2,
  .archive-preview h2 {
    font-size: clamp(4rem, 13vw, 8rem);
    line-height: 0.8;
  }

  .section-copy,
  .archive-copy {
    max-width: 760px;
  }

  .intro-acorn-frame {
    width: clamp(250px, 29vw, 390px);
    margin-right: -45px;
    margin-left: -45px;
  }

  footer {
    grid-template-columns: 1fr 1fr;
  }

}


/* MOBILE */

@media (max-width: 700px) {

  :root {
    --header-height: 104px;
  }

  body,
  button,
  a {
    cursor: auto;
  }

  .bird-cursor {
    display: none;
  }

  section {
    scroll-margin-top: calc(var(--header-height) + 12px);
  }

  .site-header {
    gap: 10px;
    min-height: var(--header-height);
    padding: 12px 17px 10px;
  }

  .small-wordmark {
    font-size: 1.35rem;
  }

  .main-navigation {
    gap: 24px;
    font-size: 0.55rem;
  }

  .intro {
    padding: 22px 14px;
  }

  .intro-content {
    width: 100%;
  }

  .intro-tagline {
    margin-bottom: 28px;
    font-size: 0.62rem;
    letter-spacing: 0.2em;
  }

  .intro-wordmark {
    flex-wrap: nowrap;
  }

  .intro-the,
  .intro-listening {
    font-size: clamp(3.2rem, 16vw, 5.6rem);
  }

  .intro-acorn-frame {
    width: clamp(145px, 37vw, 225px);
    margin-right: -32px;
    margin-left: -32px;
  }

  .artwork-credit {
    margin-top: 15px;
    font-size: 0.47rem;
  }

  .enter-button {
    margin-top: 70px;
    font-size: 0.62rem;
  }

  .ecosystem-section {
    min-height: 100svh;
  }

  .ecosystem-prompt h1 {
    font-size: clamp(3.5rem, 19vw, 6rem);
    line-height: 0.82;
  }

  .ecosystem-prompt small {
    padding: 0 18px;
    line-height: 1.45;
  }

  .ecosystem-instruction {
    bottom: 18px;
    width: 65%;
    text-align: center;
    font-size: 0.5rem;
    line-height: 1.4;
    white-space: normal;
  }

  .sound-toggle {
    right: 15px;
    bottom: 18px;
    font-size: 0.5rem;
  }

  .ecosystem-object {
    max-width: 62vw;
  }

  .content-section,
  .archive-preview {
    display: block;
    min-height: auto;
    padding:
      145px
      20px
      95px;
  }

  .section-heading {
    width: 100%;
    margin-bottom: 55px;
  }

  .section-label {
    margin-bottom: 38px;
    font-size: 0.57rem;
  }

  .section-heading h2,
  .archive-preview h2 {
    width: 100%;
    max-width: 100%;
    font-size: clamp(3.3rem, 16.5vw, 6rem);
    letter-spacing: -0.06em;
    line-height: 0.82;
  }

  .section-copy,
  .archive-copy {
    width: 100%;
    max-width: 100%;
    font-size: 1.15rem;
    line-height: 1.45;
  }

  .lead-copy {
    font-size: 1.65rem;
    line-height: 1.13;
  }

  .ecosystem-quote {
    font-size: 1.55rem;
  }

  .archive-preview > div:first-child {
    margin-bottom: 55px;
  }

  .archive-list {
    gap: 7px;
  }

  .archive-list span {
    font-size: 0.5rem;
  }

  .founder-introduction {
    font-size: 1.65rem;
  }

  .founder-quote p {
    font-size: 1.08rem;
  }

  .join-section {
    display: block;
    min-height: auto;
    padding:
      145px
      20px
      100px;
  }

  .join-section h2 {
    margin-bottom: 45px;
    font-size: clamp(4rem, 18vw, 6.5rem);
    line-height: 0.8;
  }

  .join-section > p:not(.section-label) {
    width: 100%;
    font-size: 1.15rem;
  }

  .letter-dialog {
    max-height: 90svh;
    padding: 38px 20px 24px;
    overflow-y: auto;
  }

  .letter-dialog h2 {
    font-size: 2.2rem;
  }

  .letter-form-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .letter-button-group {
    flex-direction: column;
    width: 100%;
  }

  .letter-skip,
  .letter-submit {
    width: 100%;
  }

  .letter-tab {
    padding: 11px 8px;
    font-size: 0.5rem;
  }

  .future-letter {
    width: min(78vw, 300px);
  }

  footer {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 35px 20px;
  }

}
.bird-cursor {
  pointer-events: none !important;
}

#enterEcosystem {
  position: relative;
  z-index: 10;
  pointer-events: auto !important;
}

#intro.is-hidden {
  display: none !important;
  pointer-events: none !important;
}