@font-face {
  font-family: Lithops;
  src: url("../fonts/Lithops-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: Fungal;
  src: url("../fonts/FungalVF.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: Karrik;
  src: url("../fonts/Karrik-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: Karrik;
  src: url("../fonts/Karrik-Italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

:root {
  --hunter: #386641;
  --sage: #6a994e;
  --spore: #a7c957;
  --mist: #f2e8cf;
  --brick: #bc4749;
  --ink: #1e2d20;
  --canopy: #243528;
  --grow: 180;
  --thck: 480;
  --pad: clamp(1.1rem, 3vw, 2.4rem);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--mist);
  color: var(--ink);
  font-family: Karrik, Georgia, serif;
  font-size: clamp(15px, 1.15vw, 18px);
  line-height: 1.45;
  cursor: none;
  overflow-x: hidden;
}

body.touch { cursor: auto; }
body.touch .cursor { display: none; }

img { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; }
a { color: inherit; }

::selection { background: var(--brick); color: var(--mist); }

.lithops {
  font-family: Lithops, serif;
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.82;
  text-transform: uppercase;
}

.fungal {
  font-family: Fungal, sans-serif;
  font-weight: 400;
  line-height: 0.95;
  font-variation-settings: "grow" var(--grow), "THCK" var(--thck);
}

.kicker {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--hunter);
}

.kicker.invert { color: var(--spore); }

/* grain + cursor */
.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 80;
  opacity: 0.07;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

.cursor {
  position: fixed;
  top: 0; left: 0;
  z-index: 90;
  pointer-events: none;
  transform: translate(-50%, -50%);
  mix-blend-mode: multiply;
}

.cursor i {
  display: block;
  width: 14px;
  height: 14px;
  border: 1.5px solid var(--brick);
  background: color-mix(in srgb, var(--brick) 20%, transparent);
}

.cursor span {
  display: block;
  margin-top: 4px;
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--brick);
}

/* index + mast */
.index {
  position: fixed;
  top: 50%;
  left: 0.7rem;
  transform: translateY(-50%);
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.index a {
  text-decoration: none;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--hunter);
  opacity: 0.45;
  writing-mode: horizontal-tb;
}

.index a::before {
  content: attr(data-n) " ";
  color: var(--brick);
}

.index a.is-on { opacity: 1; }

.mast {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 40;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  padding: 0.7rem var(--pad) 0.7rem calc(var(--pad) + 1.2rem);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--hunter);
  mix-blend-mode: multiply;
}
.mast a { text-decoration: none; border-bottom: 1px solid currentColor; }

/* COVER */
.cover {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  position: relative;
}

.cover-stone {
  background: var(--mist);
  padding: calc(var(--pad) + 2.4rem) var(--pad) 5rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
}

.cover-lithops {
  font-size: clamp(4.6rem, 16vw, 13rem);
  color: var(--hunter);
  margin: 0.4rem -0.08em 1.2rem;
}

.cover-lithops span { display: block; }

.cover-note {
  max-width: 28rem;
  color: var(--canopy);
}

.cover-soil {
  background: var(--hunter);
  color: var(--mist);
  padding: calc(var(--pad) + 2.4rem) var(--pad) 5rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
}

.cover-humus {
  font-size: clamp(3.4rem, 10vw, 8.5rem);
  color: var(--spore);
  --grow: 220;
  --thck: 540;
  animation: breathe 7s ease-in-out infinite;
  margin: 0.6rem 0 1.4rem;
}

.cover-grow {
  max-width: 22rem;
  font-size: clamp(1.15rem, 2vw, 1.55rem);
  line-height: 1.2;
  color: var(--mist);
  --grow: 40;
  --thck: 280;
}

.cover-meta {
  margin-top: 1.4rem;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--spore);
}

.cover-cross {
  position: absolute;
  left: 57.5%;
  top: 46%;
  transform: translate(-50%, -50%);
  font-family: Lithops, serif;
  font-size: clamp(3rem, 7vw, 6rem);
  color: var(--brick);
  z-index: 2;
  line-height: 1;
  pointer-events: none;
}

.scroll-cue {
  position: absolute;
  right: var(--pad);
  bottom: 1.2rem;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--mist);
  z-index: 3;
}

@keyframes breathe {
  0%, 100% { font-variation-settings: "grow" 160, "THCK" 420; }
  50% { font-variation-settings: "grow" 620, "THCK" 780; }
}

/* shared section chrome */
section { position: relative; }

.sec-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 1.4rem;
  align-items: end;
  padding: 4.5rem var(--pad) 2rem calc(var(--pad) + 1.2rem);
}

.sec-head.invert { color: var(--mist); }
.sec-head.invert .sec-no { color: var(--spore); }
.sec-head.invert .sec-sub { color: color-mix(in srgb, var(--mist) 75%, var(--hunter)); }

.sec-no {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--brick);
}

.sec-title {
  font-size: clamp(3.2rem, 10vw, 8rem);
  color: var(--hunter);
}

.sec-head.invert .sec-title { color: var(--mist); }

.sec-sub {
  max-width: 36rem;
  margin-top: 0.6rem;
  color: var(--canopy);
}

/* STRATA */
.strata { padding-bottom: 4rem; }

.layers {
  list-style: none;
  margin: 0 var(--pad) 0 calc(var(--pad) + 1.2rem);
  border-top: 1px solid var(--canopy);
}

.layer {
  display: grid;
  grid-template-columns: 5.5rem 1fr auto;
  gap: 1.2rem;
  align-items: start;
  padding: 1.15rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--canopy) 25%, var(--mist));
}

.layer-chip {
  width: 5.5rem;
  height: 4.2rem;
  background: var(--c);
  border: 1px solid color-mix(in srgb, var(--ink) 18%, var(--c));
}

.layer-body h3 {
  font-size: 1.05rem;
  font-weight: 400;
}

.layer-body code {
  display: block;
  margin: 0.15rem 0 0.4rem;
  font-family: Karrik, sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--brick);
}

.layer-body p {
  max-width: 38rem;
  color: var(--canopy);
}

.layer-use {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--hunter);
  padding-top: 0.2rem;
}

/* STONE */
.stone { padding-bottom: 5rem; }

.glyph-field {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 1px;
  margin: 0 var(--pad) 0 calc(var(--pad) + 1.2rem);
  background: color-mix(in srgb, var(--hunter) 18%, var(--mist));
  border: 1px solid color-mix(in srgb, var(--hunter) 18%, var(--mist));
}

.glyph {
  font-family: Lithops, serif;
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  line-height: 1;
  background: var(--mist);
  border: 0;
  padding: 1.1rem 0.2rem 0.7rem;
  cursor: none;
  color: var(--hunter);
}

.glyph:hover,
.glyph.is-on { background: var(--hunter); color: var(--mist); }

.glyph.accent { color: var(--brick); }
.glyph.accent:hover,
.glyph.accent.is-on { background: var(--brick); color: var(--mist); }

.glyph-live {
  font-size: clamp(8rem, 38vw, 22rem);
  text-align: center;
  color: var(--hunter);
  padding: 0.2rem var(--pad) 0;
  overflow: hidden;
  line-height: 0.75;
}

.stone-words {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 0.2rem 1.4rem;
  padding: 1rem var(--pad) 2.4rem calc(var(--pad) + 1.2rem);
}

.stone-words p { color: var(--hunter); }
.stone-words .w1 { font-size: clamp(3.5rem, 14vw, 11rem); }
.stone-words .w2 { font-size: clamp(2.4rem, 8vw, 6rem); color: var(--brick); align-self: end; }
.stone-words .w3 { font-size: clamp(2.8rem, 10vw, 7.5rem); }
.stone-words .w4 { font-size: clamp(2rem, 7vw, 5rem); color: var(--sage); align-self: start; }

.charset {
  padding: 0 var(--pad) 2.4rem calc(var(--pad) + 1.2rem);
}

.charset-row {
  font-size: clamp(1.4rem, 4.4vw, 3.2rem);
  color: var(--hunter);
  overflow: hidden;
  margin-top: 0.5rem;
}

.charset-row.nums { color: var(--brick); }

.card {
  margin: 0 var(--pad) 0 calc(var(--pad) + 1.2rem);
  padding: 1.4rem 1.5rem;
  background: color-mix(in srgb, var(--sage) 16%, var(--mist));
  border-left: 4px solid var(--brick);
  max-width: 52rem;
}

.card h3 {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brick);
  margin-bottom: 0.7rem;
}

.card ul { padding-left: 1.1rem; }
.card li { margin: 0.35rem 0; }
.card em { font-style: italic; }

/* SOIL */
.soil {
  background: var(--canopy);
  color: var(--mist);
  padding-bottom: 5rem;
}

.soil-title {
  font-size: clamp(4rem, 14vw, 10rem);
  --grow: 260;
  --thck: 500;
  color: var(--spore);
}

.lab {
  display: grid;
  grid-template-columns: minmax(16rem, 0.85fr) 1.15fr;
  gap: 1.5rem;
  padding: 0 var(--pad) 2.4rem calc(var(--pad) + 1.2rem);
  align-items: stretch;
}

.lab-controls {
  border: 1px solid color-mix(in srgb, var(--mist) 22%, transparent);
  padding: 1.2rem;
}

.lab-controls label {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.35rem 0.8rem;
  margin-bottom: 1.1rem;
}

.lab-controls label span {
  grid-column: 1 / -1;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--spore);
}

.lab-controls output {
  font-size: 0.8rem;
  color: var(--spore);
}

.lab-controls input[type="range"] {
  appearance: none;
  height: 2px;
  background: color-mix(in srgb, var(--mist) 35%, transparent);
  grid-column: 1 / -1;
}

.lab-controls input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 14px;
  height: 14px;
  background: var(--brick);
  border: 0;
}

.lab-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.lab-actions button,
.lab-note + * {
  background: transparent;
}

.lab-actions button {
  border: 1px solid var(--spore);
  color: var(--spore);
  padding: 0.4rem 0.75rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: none;
}

.lab-actions button:hover {
  background: var(--spore);
  color: var(--canopy);
}

.lab-note {
  margin-top: 1.1rem;
  color: color-mix(in srgb, var(--mist) 78%, var(--hunter));
}

.lab-stage {
  background: var(--hunter);
  min-height: 18rem;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 1rem;
}

.lab-word {
  font-size: clamp(2.6rem, 8vw, 6.4rem);
  color: var(--mist);
  text-align: center;
  word-break: break-word;
}

.grow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 0 var(--pad) 2.6rem calc(var(--pad) + 1.2rem);
  background: color-mix(in srgb, var(--mist) 14%, transparent);
}

.grow-steps figure {
  background: var(--canopy);
  padding: 1.3rem 0.8rem 1rem;
}

.grow-steps p {
  font-size: clamp(1.4rem, 3vw, 2.3rem);
  color: var(--mist);
}

.grow-steps figcaption {
  margin-top: 0.8rem;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--spore);
}

.reading { padding: 0 var(--pad) 0 calc(var(--pad) + 1.2rem); max-width: 58rem; }

.reading-text {
  font-size: clamp(1.25rem, 2.4vw, 1.85rem);
  line-height: 1.28;
  --grow: 80;
  --thck: 260;
  color: var(--mist);
}

/* COLLISION */
.collision { padding-bottom: 3rem; }

.duel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 38vh;
}

.duel + .duel { border-top: 1px solid color-mix(in srgb, var(--hunter) 20%, var(--mist)); }

.duel-a, .duel-b {
  padding: 2rem var(--pad);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
}

.duel-a { background: var(--mist); }
.duel-b { background: var(--hunter); color: var(--mist); }

.duel .lithops {
  font-size: clamp(3.4rem, 12vw, 9rem);
  color: var(--hunter);
  margin-top: 0.8rem;
}

.duel-b .fungal {
  font-size: clamp(2.6rem, 8vw, 6.2rem);
  color: var(--spore);
  margin-top: 0.8rem;
}

.pair-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem 2rem;
  padding: 3rem var(--pad) 4rem calc(var(--pad) + 1.2rem);
}

.pair-grid h3 {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brick);
  margin-bottom: 0.45rem;
}

.pair-grid p { max-width: 34rem; color: var(--canopy); }
.pair-grid code { font-family: Karrik, sans-serif; font-size: 0.86em; color: var(--hunter); }

/* PLATES */
.plates { padding-bottom: 4rem; }

.plate-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.1rem;
  padding: 0 var(--pad) 0 calc(var(--pad) + 1.2rem);
}

.plate { position: relative; }
.plate.wide { grid-column: 1 / -1; }

.plate img {
  width: 100%;
  height: min(72vh, 640px);
  object-fit: cover;
}

.plate.wide img { height: min(64vh, 560px); object-position: 78% center; }

.plate figcaption {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 0.15rem 1rem;
  padding: 0.75rem 0 0.2rem;
}

.plate figcaption span {
  grid-row: 1 / 3;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brick);
}

.plate figcaption strong { font-weight: 400; }
.plate figcaption em { font-style: italic; color: var(--canopy); }

/* RULES */
.rules {
  background: var(--hunter);
  color: var(--mist);
  padding-bottom: 3rem;
}

.rule-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  padding: 0 var(--pad) 3.5rem calc(var(--pad) + 1.2rem);
}

.rule-cols h3 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  color: var(--spore);
  margin-bottom: 0.8rem;
}

.rule-cols ul { list-style: none; }
.rule-cols li {
  padding: 0.55rem 0;
  border-top: 1px solid color-mix(in srgb, var(--mist) 18%, transparent);
}

.close {
  margin: 0 var(--pad) 3rem calc(var(--pad) + 1.2rem);
  padding-top: 1.5rem;
  border-top: 1px solid color-mix(in srgb, var(--mist) 22%, transparent);
}

.close .lithops {
  font-size: clamp(4rem, 16vw, 12rem);
  color: var(--brick);
}

.close-line {
  max-width: 28rem;
  margin-top: 0.8rem;
  font-size: clamp(1.3rem, 2.4vw, 2rem);
  color: var(--mist);
}

.colophon {
  padding: 0 var(--pad) 2rem calc(var(--pad) + 1.2rem);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--mist) 72%, var(--hunter));
}

.colophon p + p { margin-top: 0.2rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cover-humus { animation: none; }
}

@media (max-width: 860px) {
  body { padding-bottom: 3.6rem; }
  .index { display: none; }
  .mast { grid-template-columns: 1fr 1fr; }
  .cover,
  .lab,
  .duel,
  .pair-grid,
  .rule-cols,
  .stone-words,
  .grow-steps,
  .plate-grid,
  .layer {
    grid-template-columns: 1fr;
  }
  .cover-cross { left: 50%; top: 50%; }
  .glyph-field { grid-template-columns: repeat(4, 1fr); }
  .layer-use { display: none; }
  .cover-soil { min-height: 70vh; }
  .mast p:nth-child(3),
  .mast p:nth-child(4) { display: none; }
}