/* ==========================================================================
   PESHINU — stylesheet

   1.  Tokens
   2.  Reset & base
   3.  Typography primitives
   4.  Layout primitives
   5.  Buttons
   6.  Site header & navigation
   7.  Hero
   8.  Marquee
   9.  Section furniture
   10. About
   11. Lore
   12. Manifesto
   13. Roadmap
   14. Closing call to action
   15. Footer
   16. Not-found page
   17. Motion & reveal
   18. Responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */

:root {
  /* Palette — warm, tinted darks with a desaturated moss primary and a
     Shiba-tan secondary. Green reads "frog", tan reads "dog". */
  --ink-900: #0b0e0a;
  --ink-800: #10150f;
  --ink-700: #161d14;
  --ink-600: #1f2819;
  --bone: #edf0e4;
  --sage: #9ba48d;
  --moss: #9cc63f;
  --moss-deep: #6b8f2c;
  --tan: #d8a15c;
  --line: rgba(237, 240, 228, 0.11);
  --line-strong: rgba(156, 198, 63, 0.32);

  /* Type */
  --font-display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-body: "Karla", "Helvetica Neue", Helvetica, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;

  --step--1: clamp(0.78rem, 0.76rem + 0.1vw, 0.84rem);
  --step-0: clamp(1rem, 0.97rem + 0.15vw, 1.08rem);
  --step-1: clamp(1.18rem, 1.1rem + 0.4vw, 1.4rem);
  --step-2: clamp(1.5rem, 1.3rem + 0.9vw, 2.1rem);
  --step-3: clamp(2.1rem, 1.6rem + 2.4vw, 3.6rem);
  --step-4: clamp(2.9rem, 1.9rem + 4.6vw, 6rem);
  --step-5: clamp(4.2rem, 1.8rem + 11vw, 12rem);

  /* Space */
  --space-2xs: 0.35rem;
  --space-xs: 0.7rem;
  --space-s: 1.1rem;
  --space-m: 1.75rem;
  --space-l: 2.75rem;
  --space-xl: 4.5rem;
  --space-2xl: clamp(5rem, 9vw, 9rem);

  /* Geometry & timing */
  --radius-s: 6px;
  --radius-m: 14px;
  --radius-l: 26px;
  --shell: 1240px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --ease: cubic-bezier(0.22, 0.72, 0.24, 1);
  --header-h: 76px;
}

/* --------------------------------------------------------------------------
   2. Reset & base
   -------------------------------------------------------------------------- */

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

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
  background-color: var(--ink-900);
  color: var(--bone);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Atmosphere: two soft light pools plus a hairline grid, both fixed so they
   never repaint while scrolling. */
body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

body::before {
  background:
    radial-gradient(70ch 60ch at 12% -8%, rgba(156, 198, 63, 0.13), transparent 70%),
    radial-gradient(60ch 50ch at 92% 32%, rgba(216, 161, 92, 0.08), transparent 70%);
}

body::after {
  background-image:
    linear-gradient(rgba(237, 240, 228, 0.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(237, 240, 228, 0.024) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: radial-gradient(120ch 90ch at 50% 0%, #000 20%, transparent 85%);
}

body > * {
  position: relative;
  z-index: 1;
}

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

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

ul,
ol {
  list-style: none;
  padding: 0;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--moss);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection {
  background: var(--moss);
  color: var(--ink-900);
}

.skip-link {
  position: absolute;
  top: var(--space-xs);
  left: var(--space-xs);
  z-index: 200;
  padding: 0.7em 1.2em;
  border-radius: var(--radius-s);
  background: var(--moss);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  transform: translateY(-200%);
  transition: transform 0.2s var(--ease);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

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

/* --------------------------------------------------------------------------
   3. Typography primitives
   -------------------------------------------------------------------------- */

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.display {
  font-size: var(--step-4);
}

.display em,
.section__title em,
.hero__title em {
  font-style: italic;
  color: var(--moss);
}

.overline {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--moss);
}

.lead {
  font-size: var(--step-1);
  line-height: 1.5;
  max-width: 46ch;
  text-wrap: pretty;
}

.prose p {
  color: var(--sage);
  max-width: 62ch;
  text-wrap: pretty;
}

.prose p + p {
  margin-top: var(--space-s);
}

.prose strong {
  color: var(--bone);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   4. Layout primitives
   -------------------------------------------------------------------------- */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--space-2xl);
}

.rule {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, var(--line-strong), var(--line) 45%, transparent);
}

/* --------------------------------------------------------------------------
   5. Buttons
   -------------------------------------------------------------------------- */

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--bone);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  min-height: 52px;
  padding-inline: 1.5rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: transform 0.3s var(--ease), background-color 0.3s var(--ease),
    color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  --btn-bg: var(--moss);
  --btn-fg: var(--ink-900);
  border-color: var(--moss);
  font-weight: 500;
}

.btn--primary:hover {
  --btn-bg: var(--bone);
  border-color: var(--bone);
}

.btn--ghost:hover {
  --btn-bg: rgba(156, 198, 63, 0.09);
  --btn-fg: var(--moss);
  border-color: var(--moss);
}

.btn__arrow {
  transition: transform 0.3s var(--ease);
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-l);
}

/* --------------------------------------------------------------------------
   6. Site header & navigation
   -------------------------------------------------------------------------- */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background-color 0.35s var(--ease), border-color 0.35s var(--ease);
}

.site-header[data-scrolled="true"] {
  background: rgba(11, 14, 10, 0.86);
  border-bottom-color: var(--line);
  backdrop-filter: blur(18px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-m);
  min-height: var(--header-h);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: 0.06em;
}

.wordmark__mark {
  width: 38px;
  height: 38px;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: rgba(156, 198, 63, 0.07);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}

.wordmark__text {
  white-space: nowrap;
}

.wordmark:hover .wordmark__mark {
  transform: rotate(-8deg) scale(1.06);
  border-color: var(--moss);
}

.wordmark em {
  font-style: italic;
  color: var(--moss);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1.1rem, 2.5vw, 2.2rem);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-nav__link {
  position: relative;
  padding-block: 0.4em;
  color: var(--sage);
  transition: color 0.25s var(--ease);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--moss);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.site-nav__link:hover,
.site-nav__link[aria-current="true"] {
  color: var(--bone);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="true"]::after {
  transform: scaleX(1);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.site-header .btn {
  min-height: 44px;
  padding-inline: 1.15rem;
}

/* Mobile disclosure */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
}

.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 17px;
  height: 1.5px;
  background: var(--bone);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle__bars::before {
  transform: translateY(-5px);
}

.nav-toggle__bars::after {
  transform: translateY(5px);
}

.nav-toggle__bars {
  position: relative;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  transform: rotate(-45deg);
}

/* --------------------------------------------------------------------------
   7. Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  padding-top: calc(var(--header-h) + var(--space-xl));
  padding-bottom: var(--space-xl);
  overflow: clip;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  align-items: center;
  gap: var(--space-l);
}

.hero__title {
  font-size: var(--step-5);
  line-height: 0.8;
  letter-spacing: -0.045em;
  margin-block: var(--space-s) 0;
}

.hero__ticker {
  display: flex;
  align-items: baseline;
  gap: var(--space-s);
  margin-top: var(--space-s);
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.28em;
  color: var(--moss);
}

.hero__ticker::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--line-strong), transparent);
}

.hero__tagline {
  margin-top: var(--space-s);
  font-family: var(--font-display);
  font-size: var(--step-2);
  line-height: 1.15;
}

.hero__tagline b {
  font-weight: 400;
  font-style: italic;
  color: var(--tan);
}

.hero__copy {
  margin-top: var(--space-s);
  color: var(--sage);
  max-width: 44ch;
  text-wrap: pretty;
}

.hero__figure {
  position: relative;
  display: grid;
  place-items: center;
  margin-inline: calc(var(--space-l) * -1) 0;
}

.hero__halo {
  position: absolute;
  inset: 12% 6% auto;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(156, 198, 63, 0.28), transparent 62%);
  filter: blur(70px);
}

.hero__rings {
  position: absolute;
  width: min(560px, 96%);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid var(--line);
}

.hero__rings::before,
.hero__rings::after {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px solid var(--line);
}

.hero__rings::after {
  inset: 26%;
  border-style: dashed;
  border-color: rgba(156, 198, 63, 0.16);
}

.hero__mascot {
  position: relative;
  width: min(520px, 100%);
  filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.55));
}

.hero__chip {
  position: absolute;
  padding: 0.55em 1.05em;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(16, 21, 15, 0.82);
  backdrop-filter: blur(8px);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}

.hero__chip--frog {
  top: 18%;
  left: 0;
  color: var(--moss);
}

.hero__chip--dog {
  bottom: 20%;
  right: 0;
  color: var(--tan);
  border-color: rgba(216, 161, 92, 0.34);
}

/* --------------------------------------------------------------------------
   8. Marquee
   -------------------------------------------------------------------------- */

.marquee {
  display: flex;
  gap: 0;
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: rgba(31, 40, 25, 0.35);
  user-select: none;
}

/* Each track is at least as wide as the viewport, so two identical tracks
   translating by -100% loop seamlessly at any window size. */
.marquee__track {
  display: flex;
  flex: none;
  min-width: 100%;
  align-items: center;
  justify-content: space-around;
  gap: var(--space-l);
  padding-block: var(--space-s);
  animation: marquee 38s linear infinite;
}

.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-s);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sage);
  white-space: nowrap;
}

.marquee__item b {
  font-weight: 500;
  color: var(--bone);
}

.marquee__item::after {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--moss);
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

@keyframes marquee {
  to {
    transform: translateX(-100%);
  }
}

/* --------------------------------------------------------------------------
   9. Section furniture
   -------------------------------------------------------------------------- */

.section__head {
  display: grid;
  grid-template-columns: 12ch minmax(0, 1fr);
  gap: var(--space-m);
  align-items: start;
}

.section__index {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--moss);
  padding-top: 0.65em;
  border-top: 1px solid var(--line-strong);
}

.section__title {
  font-size: var(--step-3);
  max-width: 24ch;
}

.section__intro {
  margin-top: var(--space-s);
  color: var(--sage);
  max-width: 56ch;
  font-size: var(--step-1);
  line-height: 1.5;
  text-wrap: pretty;
}

/* --------------------------------------------------------------------------
   10. About
   -------------------------------------------------------------------------- */

.about__body {
  display: grid;
  grid-template-columns: 12ch minmax(0, 1fr) minmax(0, 0.62fr);
  gap: var(--space-m);
  margin-top: var(--space-xl);
}

.about__body > :first-child {
  grid-column: 2;
}

.pull-quote {
  align-self: start;
  padding: var(--space-m);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(160deg, rgba(31, 40, 25, 0.6), rgba(16, 21, 15, 0.3));
  font-family: var(--font-display);
  font-size: var(--step-2);
  line-height: 1.2;
}

.pull-quote em {
  font-style: italic;
  color: var(--moss);
}

.pull-quote footer {
  margin-top: var(--space-s);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sage);
}

/* --------------------------------------------------------------------------
   11. Lore
   -------------------------------------------------------------------------- */

.lore {
  border-block: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(31, 40, 25, 0.22), transparent 55%);
}

.lore__body {
  display: grid;
  grid-template-columns: 12ch minmax(0, 1fr);
  gap: var(--space-m);
  margin-top: var(--space-xl);
}

.lore__chapters {
  grid-column: 2;
  border-left: 1px solid var(--line-strong);
  padding-left: clamp(1.25rem, 3vw, 2.75rem);
  max-width: 68ch;
}

.lore__chapters > * + * {
  margin-top: var(--space-m);
}

.lore__chapters p {
  color: var(--sage);
  text-wrap: pretty;
}

.lore__chapters p:first-of-type::first-letter {
  float: left;
  margin: 0.06em 0.12em 0 0;
  font-family: var(--font-display);
  font-size: 3.6em;
  line-height: 0.78;
  color: var(--moss);
}

.lore__beat {
  font-family: var(--font-display);
  font-size: var(--step-2);
  line-height: 1.2;
  color: var(--bone);
}

.lore__beat em {
  font-style: italic;
  color: var(--moss);
}

.lore__beat--tan em {
  color: var(--tan);
}

/* --------------------------------------------------------------------------
   12. Manifesto
   -------------------------------------------------------------------------- */

.manifesto__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-xs);
  margin-top: var(--space-xl);
}

/* Deliberately uneven spans so the set reads as an editorial layout rather
   than a row of identical cards. */
.manifesto__item:nth-child(1) { grid-column: span 4; }
.manifesto__item:nth-child(2) { grid-column: span 2; }
.manifesto__item:nth-child(3) { grid-column: span 2; }
.manifesto__item:nth-child(4) { grid-column: span 4; }
.manifesto__item:nth-child(5) { grid-column: span 3; }
.manifesto__item:nth-child(6) { grid-column: span 3; }

.manifesto__item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  padding: var(--space-m);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(16, 21, 15, 0.55);
  overflow: hidden;
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease),
    background-color 0.4s var(--ease);
}

.manifesto__item::before {
  content: "";
  position: absolute;
  inset: auto auto -40% -20%;
  width: 60%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(156, 198, 63, 0.16), transparent 65%);
  opacity: 0;
  transition: opacity 0.45s var(--ease);
}

.manifesto__item:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  background: rgba(31, 40, 25, 0.55);
}

.manifesto__item:hover::before {
  opacity: 1;
}

.manifesto__num {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.16em;
  color: var(--moss);
}

.manifesto__item h3 {
  font-size: var(--step-2);
}

.manifesto__item p {
  color: var(--sage);
  font-size: var(--step-0);
  max-width: 44ch;
}

/* --------------------------------------------------------------------------
   13. Roadmap
   -------------------------------------------------------------------------- */

.roadmap__list {
  margin-top: var(--space-xl);
  counter-reset: stage;
}

.roadmap__item {
  display: grid;
  grid-template-columns: 12ch minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-m);
  align-items: baseline;
  padding-block: var(--space-m);
  border-top: 1px solid var(--line);
  transition: background-color 0.4s var(--ease);
}

.roadmap__item:last-child {
  border-bottom: 1px solid var(--line);
}

.roadmap__item:hover {
  background: rgba(31, 40, 25, 0.32);
}

.roadmap__stage {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tan);
}

.roadmap__item h3 {
  font-size: var(--step-2);
  transition: transform 0.4s var(--ease);
}

.roadmap__item:hover h3 {
  transform: translateX(6px);
}

.roadmap__item p {
  color: var(--sage);
  max-width: 48ch;
  text-wrap: pretty;
}

/* --------------------------------------------------------------------------
   14. Closing call to action
   -------------------------------------------------------------------------- */

.closing {
  position: relative;
  overflow: clip;
  border-top: 1px solid var(--line);
}

.closing__inner {
  display: grid;
  gap: var(--space-m);
  max-width: 24ch;
}

.closing__title {
  font-size: var(--step-4);
}

.closing__title em {
  font-style: italic;
  color: var(--moss);
}

.closing p {
  color: var(--sage);
  max-width: 46ch;
}

.closing__mark {
  position: absolute;
  right: calc(var(--gutter) * -1);
  bottom: -18%;
  width: min(420px, 42vw);
  opacity: 0.5;
  filter: grayscale(0.35);
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   15. Footer
   -------------------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: var(--space-l);
  font-size: var(--step--1);
  color: var(--sage);
}

.site-footer__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-m);
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-m);
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-footer__nav a:hover {
  color: var(--moss);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-s);
  margin-top: var(--space-l);
  padding-top: var(--space-s);
  border-top: 1px solid var(--line);
}

.site-footer__disclaimer {
  max-width: 66ch;
}

/* --------------------------------------------------------------------------
   16. Not-found page
   -------------------------------------------------------------------------- */

.not-found {
  display: grid;
  place-items: center;
  min-height: 100vh;
  text-align: center;
  padding-block: var(--space-2xl);
}

.not-found__code {
  font-family: var(--font-mono);
  letter-spacing: 0.24em;
  color: var(--moss);
}

.not-found__title {
  font-size: var(--step-4);
  margin-block: var(--space-s);
}

.not-found__title em {
  font-style: italic;
  color: var(--moss);
}

.not-found p {
  color: var(--sage);
  max-width: 44ch;
  margin-inline: auto;
}

.not-found .btn-row {
  justify-content: center;
}

.not-found__mark {
  width: min(190px, 45vw);
  margin-inline: auto;
  opacity: 0.85;
}

/* --------------------------------------------------------------------------
   17. Motion & reveal
   -------------------------------------------------------------------------- */

.hero__mascot,
.not-found__mark {
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  50% {
    transform: translateY(-14px);
  }
}

/* Entrance choreography. `.js` is set by the stylesheet consumer only when
   scripting is available, so no-JS visitors always see the content. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   18. Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1080px) {
  .hero__grid {
    gap: var(--space-m);
  }

  .hero__figure {
    margin-inline: 0;
  }

  .manifesto__item:nth-child(n) {
    grid-column: span 3;
  }
}

@media (max-width: 900px) {
  .site-nav {
    position: absolute;
    inset: var(--header-h) var(--gutter) auto;
    padding: var(--space-s);
    border: 1px solid var(--line);
    border-radius: var(--radius-m);
    background: rgba(11, 14, 10, 0.96);
    backdrop-filter: blur(18px);
    transform-origin: top;
    display: none;
  }

  .site-nav[data-open="true"] {
    display: block;
    animation: nav-in 0.28s var(--ease);
  }

  @keyframes nav-in {
    from {
      opacity: 0;
      transform: translateY(-8px);
    }
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__link {
    display: block;
    padding: 0.9em 0.4em;
    border-bottom: 1px solid var(--line);
  }

  .site-nav__list li:last-child .site-nav__link {
    border-bottom: 0;
  }

  .site-nav__link::after {
    display: none;
  }

  .nav-toggle {
    display: grid;
  }

  .hero {
    padding-top: calc(var(--header-h) + var(--space-m));
  }

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

  .hero__figure {
    order: -1;
  }

  .hero__mascot {
    width: min(360px, 78%);
  }

  .hero__rings {
    width: min(400px, 90%);
  }

  .section__head,
  .about__body,
  .lore__body,
  .roadmap__item {
    grid-template-columns: 1fr;
    gap: var(--space-s);
  }

  .about__body > :first-child,
  .lore__chapters {
    grid-column: 1;
  }

  .section__index {
    display: inline-block;
  }

  .closing__mark {
    position: static;
    width: min(280px, 60vw);
    margin-top: var(--space-m);
    right: auto;
  }

  .closing__inner {
    max-width: none;
  }
}

@media (max-width: 620px) {
  .manifesto__item:nth-child(n) {
    grid-column: span 6;
  }

  .site-header__actions .btn--primary {
    display: none;
  }

  .hero__chip--frog {
    top: 8%;
  }

  .hero__chip--dog {
    bottom: 10%;
  }
}