/* ==========================================================================
   Cat Splat Studios site stylesheet
   Zero dependencies. Hand-written. No build step.

   The palette and fonts are lifted directly from Sentinels of Gleamwood's
   in-game UI theme (Assets/_Game/UI/Theme/GleamwoodTheme.tss) so the site and
   the game read as one thing.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Fonts (self-hosted; both OFL-licensed)
   -------------------------------------------------------------------------- */

@font-face {
  font-family: "Pixelify Sans";
  src: url("../fonts/PixelifySans-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Space Mono";
  src: url("../fonts/SpaceMono-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Pixel Operator Mono";
  src: url("../fonts/PixelOperatorMono-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   2. Tokens
   -------------------------------------------------------------------------- */

:root {
  /* Gleamwood canon */
  --bg: #100d14;
  --ember: #ff6a2a;
  --ember-hot: #ffae3a;
  --ember-deep: #cf5a2a;
  --burn: #ff8a3a;
  --juggle: #86b4ff;
  --perfect: #7ec88a;
  --text: #cfc6dc;
  --text-dim: #8a8397;
  --rule: #2a2533;

  /* Site-only extensions of the canon */
  --bg-sunk: #0a080d;
  --bg-raise: #171320;
  --bg-raise-2: #1e1929;
  --text-bright: #efe9f5;

  --ember-glow: rgb(255 106 42 / 0.35);
  --ember-veil: rgb(255 106 42 / 0.08);

  /* Type */
  --font-display: "Pixelify Sans", "Trebuchet MS", sans-serif;
  --font-body: "Space Mono", ui-monospace, "Cascadia Mono", Menlo, monospace;
  --font-numeric: "Pixel Operator Mono", "Space Mono", monospace;

  /* Fluid scale, via clamp(min, preferred, max) */
  --step--1: clamp(0.78rem, 0.75rem + 0.15vw, 0.86rem);
  --step-0: clamp(0.94rem, 0.9rem + 0.2vw, 1.05rem);
  --step-1: clamp(1.15rem, 1.05rem + 0.5vw, 1.4rem);
  --step-2: clamp(1.45rem, 1.25rem + 1vw, 2rem);
  --step-3: clamp(1.9rem, 1.5rem + 2vw, 3rem);
  --step-4: clamp(2.4rem, 1.7rem + 3.4vw, 4.5rem);
  --step-5: clamp(3rem, 1.8rem + 6vw, 7rem);

  /* Rhythm */
  --gutter: clamp(1.15rem, 0.8rem + 1.8vw, 2.5rem);
  --section-y: clamp(4rem, 2.5rem + 7vw, 9rem);
  --measure: 66ch;
  --shell: 1240px;

  --radius: 4px;
  --radius-lg: 8px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  color-scheme: dark;
}

/* --------------------------------------------------------------------------
   3. Reset / base
   -------------------------------------------------------------------------- */

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

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  min-height: 100svh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

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

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

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

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

::selection {
  background: var(--ember);
  color: var(--bg);
}

/* --------------------------------------------------------------------------
   4. Typography
   -------------------------------------------------------------------------- */

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: 0.01em;
  color: var(--text-bright);
  text-wrap: balance;
}

h1 {
  font-size: var(--step-4);
}
h2 {
  font-size: var(--step-3);
}
h3 {
  font-size: var(--step-2);
}
h4 {
  font-size: var(--step-1);
}

p {
  text-wrap: pretty;
}

strong {
  color: var(--text-bright);
}

code {
  font-family: var(--font-body);
  font-size: 0.9em;
  color: var(--ember-hot);
}

.lede {
  font-size: var(--step-1);
  line-height: 1.65;
  color: var(--text);
  max-width: var(--measure);
}

.dim {
  color: var(--text-dim);
}

.measure {
  max-width: var(--measure);
}

/* Ember-gradient display text */
.ember-text {
  background: linear-gradient(
    100deg,
    var(--ember-hot) 0%,
    var(--ember) 45%,
    var(--ember-deep) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  /* Fallback for the rare engine that ignores background-clip */
  -webkit-text-fill-color: transparent;
}

/* --------------------------------------------------------------------------
   5. Layout primitives
   -------------------------------------------------------------------------- */

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

.shell-narrow {
  max-width: 860px;
}

.section {
  padding-block: var(--section-y);
  position: relative;
}

.section-sunk {
  background: var(--bg-sunk);
  border-block: 1px solid var(--rule);
}

.stack > * + * {
  margin-top: var(--stack-gap, 1.25rem);
}

.grid {
  display: grid;
  gap: var(--grid-gap, 1.5rem);
}

/* Explicit column counts rather than auto-fit: auto-fit happily turns a
   four-card grid into 3 + 1 orphan at intermediate widths. */
@media (min-width: 46rem) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 64rem) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.split {
  display: grid;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

/* Grid items default to min-width:auto, i.e. min-content. One long line in a
   <pre> therefore widens its whole track past the viewport even though the
   <pre> itself is set to scroll. Opting out is what makes overflow-x work. */
.grid > *,
.split > * {
  min-width: 0;
}

@media (min-width: 62rem) {
  .split {
    grid-template-columns: 1fr 1fr;
  }
  .split-wide-left {
    grid-template-columns: 1.15fr 0.85fr;
  }
  .split-wide-right {
    grid-template-columns: 0.85fr 1.15fr;
  }
}

.center {
  text-align: center;
}

.center .lede,
.center .measure {
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   6. Section headers
   -------------------------------------------------------------------------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-body);
  font-size: var(--step--1);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ember);
  margin-bottom: 1.1rem;
}

.eyebrow::before {
  content: "";
  width: 2rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ember));
  flex: none;
}

.center .eyebrow::after {
  content: "";
  width: 2rem;
  height: 1px;
  background: linear-gradient(90deg, var(--ember), transparent);
  flex: none;
}

.section-head {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

/* --------------------------------------------------------------------------
   7. Ember field. The signature motif, mirroring the game's UIEmbers
   -------------------------------------------------------------------------- */

.embers {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  mask-image: linear-gradient(180deg, transparent, #000 15%, #000 70%, transparent);
}

.embers canvas {
  width: 100%;
  height: 100%;
}

/* Static CSS ember bed. Always present, so the page still feels alive with
   JS disabled or motion reduced. */
.ember-bed {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 78%, var(--ember-hot), transparent),
    radial-gradient(1.5px 1.5px at 28% 92%, var(--ember), transparent),
    radial-gradient(1px 1px at 44% 66%, var(--burn), transparent),
    radial-gradient(2px 2px at 61% 88%, var(--ember), transparent),
    radial-gradient(1px 1px at 77% 71%, var(--ember-hot), transparent),
    radial-gradient(1.5px 1.5px at 89% 94%, var(--ember-deep), transparent),
    radial-gradient(1px 1px at 6% 55%, var(--ember), transparent),
    radial-gradient(1px 1px at 52% 44%, var(--burn), transparent);
  opacity: 0.55;
  filter: blur(0.3px);
}

/* Warm floor-glow, as if something is burning just off-screen */
.hearth {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 70% at 50% 118%, rgb(255 106 42 / 0.22) 0%, transparent 62%),
    radial-gradient(80% 55% at 15% 100%, rgb(255 174 58 / 0.1) 0%, transparent 60%),
    radial-gradient(90% 60% at 85% 105%, rgb(207 90 42 / 0.12) 0%, transparent 60%);
}

.section > .shell,
.hero > .shell {
  position: relative;
  z-index: 1;
}

/* --------------------------------------------------------------------------
   8. Buttons
   -------------------------------------------------------------------------- */

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--text-bright);
  --btn-bd: var(--rule);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85em 1.6em;
  font-family: var(--font-body);
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1px solid var(--btn-bd);
  border-radius: var(--radius);
  transition:
    transform 0.25s var(--ease),
    box-shadow 0.25s var(--ease),
    border-color 0.25s var(--ease),
    background-color 0.25s var(--ease),
    color 0.25s var(--ease);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

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

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

.btn-primary {
  --btn-bg: var(--ember);
  --btn-fg: #14100c;
  --btn-bd: var(--ember);
  font-weight: 700;
}

.btn-primary:hover {
  --btn-bg: var(--ember-hot);
  --btn-bd: var(--ember-hot);
  box-shadow:
    0 0 0 1px var(--ember-hot),
    0 10px 34px -8px var(--ember-glow);
}

.btn-ghost:hover {
  --btn-bd: var(--ember);
  --btn-fg: var(--ember-hot);
  background: var(--ember-veil);
}

.btn-lg {
  padding: 1em 2em;
  font-size: var(--step-0);
}

.btn .icon {
  transition: transform 0.25s var(--ease);
}

.btn:hover .icon {
  transform: translateX(3px);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.center .btn-row {
  justify-content: center;
}

/* --------------------------------------------------------------------------
   9. Cards & panels
   -------------------------------------------------------------------------- */

.panel {
  position: relative;
  background: var(--bg-raise);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  transition:
    border-color 0.3s var(--ease),
    transform 0.3s var(--ease),
    box-shadow 0.3s var(--ease);
}

.panel-hover:hover {
  border-color: color-mix(in srgb, var(--ember) 45%, var(--rule));
  transform: translateY(-4px);
  box-shadow: 0 18px 50px -22px rgb(0 0 0 / 0.9);
}

/* Thin ember hairline that wipes across the top edge on hover */
.panel-hover::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ember), transparent);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.panel-hover:hover::before {
  opacity: 1;
}

.panel-title {
  font-family: var(--font-display);
  font-size: var(--step-1);
  color: var(--text-bright);
  margin-bottom: 0.7rem;
}

.panel p {
  color: var(--text-dim);
  font-size: var(--step--1);
  line-height: 1.8;
}

/* Numbered / iconed marker used on feature and service cards */
.marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: 1.25rem;
  border: 1px solid color-mix(in srgb, var(--ember) 40%, transparent);
  border-radius: var(--radius);
  background: var(--ember-veil);
  color: var(--ember);
  font-family: var(--font-numeric);
  font-size: 1rem;
  flex: none;
  transition:
    background-color 0.3s var(--ease),
    border-color 0.3s var(--ease),
    color 0.3s var(--ease);
}

.panel-hover:hover .marker {
  background: color-mix(in srgb, var(--ember) 22%, transparent);
  border-color: var(--ember);
  color: var(--ember-hot);
}

.marker svg {
  width: 1.35rem;
  height: 1.35rem;
}

/* --------------------------------------------------------------------------
   10. Badges & tags
   -------------------------------------------------------------------------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35em 0.85em;
  font-size: var(--step--1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: 1px solid color-mix(in srgb, var(--ember) 40%, transparent);
  border-radius: 100px;
  background: var(--ember-veil);
  color: var(--ember-hot);
  white-space: nowrap;
}

.badge-dim {
  border-color: var(--rule);
  background: transparent;
  color: var(--text-dim);
}

.badge-live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ember);
  box-shadow: 0 0 0 0 var(--ember-glow);
  animation: pulse 2.4s var(--ease) infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgb(255 106 42 / 0.5);
  }
  70% {
    box-shadow: 0 0 0 8px rgb(255 106 42 / 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgb(255 106 42 / 0);
  }
}

/* --------------------------------------------------------------------------
   11. Stat tiles
   -------------------------------------------------------------------------- */

.stat {
  border-left: 2px solid color-mix(in srgb, var(--ember) 50%, transparent);
  padding-left: 1.1rem;
}

.stat-num {
  display: block;
  font-family: var(--font-numeric);
  font-size: var(--step-3);
  line-height: 1;
  color: var(--ember-hot);
  letter-spacing: 0.02em;
}

.stat-label {
  display: block;
  margin-top: 0.5rem;
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* --------------------------------------------------------------------------
   12. Header / nav
   -------------------------------------------------------------------------- */

.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition:
    background-color 0.3s var(--ease),
    border-color 0.3s var(--ease),
    backdrop-filter 0.3s var(--ease);
}

.site-header.is-stuck {
  background: rgb(16 13 20 / 0.82);
  backdrop-filter: blur(14px) saturate(1.3);
  border-bottom-color: var(--rule);
}

.site-header .shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(0.75rem, 0.4rem + 1.6vw, 1.5rem);
  height: 4.75rem;
}

/* The wordmark is a 7.3:1 lockup, so at 2.5rem tall it is ~294px wide,
   which is more than a 375px viewport can spare next to a menu button. It shrinks first. */
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  flex: 0 1 auto;
}

/* Scale with the viewport rather than stepping at one breakpoint. At a fixed
   2rem tall the 7.34:1 wordmark is 235px, which plus the 44px button and the
   gap overflows a 320px screen by ~33px. That went unnoticed because body has
   overflow-x: hidden to clip it. */
.brand img {
  height: clamp(1.5rem, 1rem + 2.2vw, 2.5rem);
  width: auto;
  max-width: 100%;
  object-fit: contain;
  object-position: left center;
  transition: transform 0.3s var(--ease);
}

.brand:hover img {
  transform: scale(1.06);
}

.nav {
  display: none;
  align-items: center;
  gap: clamp(1.2rem, 2.5vw, 2.25rem);
}

@media (min-width: 52rem) {
  .nav {
    display: flex;
  }
}

.nav a {
  position: relative;
  font-size: var(--step--1);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding-block: 0.4rem;
  transition: color 0.25s var(--ease);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 100%;
  background: var(--ember);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav a:hover {
  color: var(--text-bright);
}

.nav a:hover::after,
.nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav a[aria-current="page"] {
  color: var(--ember);
}

.nav-cta {
  display: none;
}

@media (min-width: 68rem) {
  .nav-cta {
    display: inline-flex;
  }
}

/* Mobile menu */
/* flex:none is load-bearing. Without it the flex row shrinks the button to
   ~18px wide, well under the 44px minimum touch target. */
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  color: var(--text-bright);
  transition:
    border-color 0.25s var(--ease),
    background-color 0.25s var(--ease);
}

.menu-toggle:hover {
  border-color: var(--ember);
  background: var(--ember-veil);
}

@media (min-width: 52rem) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle svg {
  flex: none;
  width: 1.35rem;
  height: 1.35rem;
}

.menu-toggle .icon-close {
  display: none;
}

.menu-toggle[aria-expanded="true"] .icon-open {
  display: none;
}

.menu-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

.mobile-nav {
  /* grid + grid-template-rows 0fr->1fr animates open/closed without JS having
     to measure heights. The inner div needs min-height:0 for it to collapse. */
  display: grid;
  grid-template-rows: 0fr;
  background: rgb(10 8 13 / 0.97);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
  transition: grid-template-rows 0.35s var(--ease);
}

.mobile-nav[data-open="true"] {
  grid-template-rows: 1fr;
}

/* A 0fr row still contains focusable links. Without visibility:hidden the
   closed menu stays in the tab order and in the accessibility tree, so a
   keyboard user tabs into four invisible links. The delayed transition lets
   the close animation finish before it is pulled from the tree. */
.mobile-nav > div {
  min-height: 0;
  overflow: hidden;
  visibility: hidden;
  transition: visibility 0s linear 0.35s;
}

.mobile-nav[data-open="true"] > div {
  visibility: visible;
  transition-delay: 0s;
}

/* Without JS the toggle cannot do anything, so show the menu open instead of
   leaving small screens with no navigation at all. */
.no-js .mobile-nav {
  grid-template-rows: 1fr;
}

.no-js .mobile-nav > div {
  visibility: visible;
}

.no-js .menu-toggle {
  display: none;
}

.mobile-nav ul {
  display: flex;
  flex-direction: column;
  padding: 0.5rem var(--gutter) 1.5rem;
}

.mobile-nav a {
  display: block;
  padding: 0.9rem 0;
  font-size: var(--step-0);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  border-bottom: 1px solid var(--rule);
  transition: color 0.25s var(--ease);
}

.mobile-nav a:hover,
.mobile-nav a[aria-current="page"] {
  color: var(--ember);
}

@media (min-width: 52rem) {
  .mobile-nav {
    display: none;
  }
}

/* Skip link */
.skip {
  position: absolute;
  left: 50%;
  top: 0;
  translate: -50% -120%;
  z-index: 200;
  padding: 0.75rem 1.25rem;
  background: var(--ember);
  color: #14100c;
  font-size: var(--step--1);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 0 0 var(--radius) var(--radius);
  transition: translate 0.2s var(--ease);
}

/* :focus, not :focus-visible. A skip link must appear for any focus, and
   some browsers do not treat a programmatic tab into it as "visible". */
.skip:focus {
  translate: -50% 0;
}

/* Visually hidden, still announced. Used to disambiguate repeated link text. */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   13. Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: min(92svh, 54rem);
  padding-block: clamp(7rem, 14vh, 11rem) var(--section-y);
  overflow: hidden;
  isolation: isolate;
}

.hero-sub {
  min-height: auto;
  padding-block: clamp(8rem, 18vh, 12rem) var(--section-y);
}

/* Vignette so the ember field never fights the text */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(
    75% 60% at 50% 45%,
    transparent 0%,
    rgb(16 13 20 / 0.55) 78%,
    var(--bg) 100%
  );
}

.hero > .shell {
  z-index: 2;
}

/* Layered treeline silhouette, purely decorative */
.grove {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  z-index: 1;
  height: clamp(9rem, 26vh, 17rem);
  pointer-events: none;
}

.grove svg {
  width: 100%;
  height: 100%;
}

/* Three depths. Each is only a few points lighter than the one behind it.
   The silhouette should read as distance, not as three grey bands. */
.grove-far {
  fill: #17121f;
}

.grove-mid {
  fill: #0d0a13;
}

.grove-near {
  fill: #050409;
}

/* Hero title lockup */
.hero-inner {
  max-width: 46rem;
}

.hero-inner h1 {
  margin-bottom: 1.5rem;
}

.hero-inner p + p {
  margin-top: 0.9rem;
}

.hero-inner .btn-row {
  margin-top: 2.25rem;
}

.hero-title {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.5rem;
}

.hero-title-sm {
  font-size: var(--step-1);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.35em;
}

.hero-title-lg {
  font-size: var(--step-5);
  line-height: 0.95;
  letter-spacing: -0.01em;
  /* The ember gradient can't carry a glow, so paint one behind the glyphs. */
  filter: drop-shadow(0 0 28px rgb(255 106 42 / 0.28));
}

.hero-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-top: 2rem;
  font-size: var(--step--1);
}

/* Run-web figure */
.webfig {
  margin: 0;
}

.webfig svg {
  width: 100%;
  height: auto;
  overflow: visible;
}

.web-edges path {
  fill: none;
  stroke: var(--rule);
  stroke-width: 1.5;
}

.web-nodes circle {
  fill: var(--bg-raise-2);
  stroke: var(--text-dim);
  stroke-width: 1.5;
}

.web-nodes .n-entry {
  fill: var(--ember);
  stroke: var(--ember-hot);
}

.web-nodes .n-final {
  fill: var(--bg);
  stroke: var(--ember);
  stroke-width: 2.5;
}

.web-label {
  fill: var(--text-dim);
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.webfig figcaption {
  margin-top: 1.25rem;
  font-size: var(--step--1);
  color: var(--text-dim);
  line-height: 1.7;
}

/* Three edge kinds, told apart by dash pattern rather than by colour alone,
   so the distinction survives a greyscale print and colour blindness. */
.web-edges .e-descent {
  stroke-dasharray: none;
}

.web-edges .e-lateral {
  stroke-dasharray: 6 5;
}

.web-edges .e-bypass {
  stroke-dasharray: 1.5 5;
  stroke-linecap: round;
}

.web-node {
  cursor: pointer;
}

.web-node circle {
  transition:
    fill 0.2s var(--ease),
    stroke 0.2s var(--ease);
}

.web-node.is-lit circle {
  fill: var(--ember);
  stroke: var(--ember-hot);
}

.web-node.is-lit .web-label {
  fill: var(--ember-hot);
}

.web-edges path.is-lit {
  stroke: var(--ember);
  stroke-width: 2.5;
}

.web-readout {
  margin-top: 1.5rem;
  display: grid;
  gap: 1.1rem;
}

.web-count {
  font-size: var(--step--1);
  color: var(--text-bright);
}

.web-dist {
  display: grid;
  gap: 0.5rem;
  margin: 0;
}

.web-dist div {
  display: grid;
  grid-template-columns: 7rem 1fr;
  align-items: center;
  gap: 0.9rem;
}

.web-dist dt {
  font-size: var(--step--1);
  color: var(--text-dim);
}

.web-dist dd {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0;
}

.distbar {
  height: 6px;
  width: var(--pct, 0%);
  min-width: 2px;
  border-radius: 3px;
  background: var(--ember-deep);
}

.web-dist b {
  font-family: var(--font-numeric);
  font-size: var(--step-0);
  color: var(--ember-hot);
  font-weight: 400;
}

.web-trace {
  justify-self: start;
}

.hang-replay {
  flex: none;
}

/* Stat rows */
.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2.5rem;
}

/* Closing CTA band */
.section-cta {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--rule);
  background: var(--bg-sunk);
}

.section-cta .btn-row {
  margin-top: 2rem;
}

/* --------------------------------------------------------------------------
   14. Scroll reveal
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(1.5rem);
  transition:
    opacity 0.7s var(--ease-out),
    transform 0.7s var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* If JS never runs, nothing should stay invisible. */
.no-js .reveal {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   14b. Page components
   -------------------------------------------------------------------------- */

/* Big game-title lockup */
.title-lockup {
  font-size: var(--step-4);
  line-height: 1;
  filter: drop-shadow(0 0 24px rgb(255 106 42 / 0.22));
}

/* A game's own title art, used in place of a text heading. The alt text carries
   the heading for assistive tech and search. */
/* No font-size:0 here. If the image fails to load, the alt text is the
   heading, and it has to be readable. Images are display:block in the reset,
   so there is no inline whitespace gap to suppress. */
.lockup-img img {
  width: min(28rem, 100%);
  height: auto;
}

/* Studio mark. The source art is black ink on transparency, which is invisible
   on this background, so use its alpha as a mask and paint ember through it. */
.logo-mark {
  width: min(13rem, 40vw);
  aspect-ratio: 900 / 700;
  margin-bottom: 2rem;
  background: linear-gradient(150deg, var(--ember-hot), var(--ember) 55%, var(--ember-deep));
  -webkit-mask: url("../img/cat-splat-logo.webp") center / contain no-repeat;
  mask: url("../img/cat-splat-logo.webp") center / contain no-repeat;
  filter: drop-shadow(0 0 22px rgb(255 106 42 / 0.25));
}

/* Biome index */
.biome-list {
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (min-width: 46rem) {
  .biome-list {
    grid-template-columns: 1fr 1fr;
  }
}

.biome-list li {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.95rem 1.35rem;
  background: var(--bg-raise);
  transition: background-color 0.25s var(--ease);
}

.biome-list li:hover {
  background: var(--bg-raise-2);
}

.biome-list li::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  margin-top: 0.7em;
  border-radius: 50%;
  background: var(--ember);
}

.biome-name {
  font-family: var(--font-display);
  font-size: var(--step-1);
  color: var(--text-bright);
}

.biome-note {
  margin-left: auto;
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ember);
  white-space: nowrap;
}

/* Framed imagery */
.framed {
  width: 100%;
  height: auto;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: var(--bg-sunk);
}

.photo-figure {
  margin: 0;
  max-width: 46rem;
}

.photo-figure figcaption {
  margin-top: 1rem;
  font-size: var(--step--1);
  color: var(--text-dim);
}

/* Inline outbound link */
.link-out {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1.25rem;
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ember);
  border-bottom: 1px solid transparent;
  transition:
    color 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.link-out:hover {
  color: var(--ember-hot);
  border-bottom-color: currentColor;
}

/* Vertical stat column */
.stat-stack {
  display: grid;
  gap: 1.75rem;
}

/* Code figure */
.codefig {
  margin: 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: var(--bg-sunk);
  overflow: hidden;
}

.codefig figcaption {
  padding: 0.7rem 1.1rem;
  border-bottom: 1px solid var(--rule);
  background: var(--bg-raise);
  font-size: var(--step--1);
  color: var(--text-dim);
}

.codefig pre {
  margin: 0;
  padding: 1.35rem;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.85;
  color: var(--text);
}

.c-sec {
  color: var(--ember-hot);
}
.c-key {
  color: var(--juggle);
}
.c-cm {
  color: var(--text-dim);
  font-style: italic;
}

/* Proof strip */
.proof-strip {
  --grid-gap: 2rem;
}

/* Capability cards */
.cap-list {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 62rem) {
  .cap-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.cap p {
  color: var(--text);
  font-size: var(--step-0);
}

.proof {
  margin-top: 1.35rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-size: var(--step--1) !important;
  color: var(--text-dim) !important;
  line-height: 1.8;
}

.proof-tag {
  display: inline-block;
  margin-right: 0.6rem;
  font-size: 0.72em;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ember);
}

/* Backend seam diagram */
.seamfig {
  margin: 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: var(--bg-raise);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.seam-row {
  display: grid;
  align-items: center;
  gap: 0.75rem;
  grid-template-columns: 1fr;
  padding-block: 0.85rem;
  border-bottom: 1px solid var(--rule);
  text-align: center;
}

@media (min-width: 46rem) {
  .seam-row {
    grid-template-columns: 1fr auto 1fr;
    text-align: left;
  }
}

.seam-row:last-of-type {
  border-bottom: 0;
}

.seam-side {
  font-size: var(--step--1);
  color: var(--text-dim);
}

.seam-bar {
  padding: 0.5em 1.1em;
  border: 1px solid var(--ember);
  border-radius: var(--radius);
  background: var(--ember-veil);
  color: var(--ember-hot);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.seam-impl {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

@media (min-width: 46rem) {
  .seam-impl {
    justify-content: flex-end;
  }
}

.seam-impl span {
  padding: 0.25em 0.7em;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--bg-sunk);
  color: var(--text);
  font-size: var(--step--1);
}

.seamfig figcaption {
  margin-top: 1.35rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-size: var(--step--1);
  color: var(--text-dim);
  line-height: 1.8;
}

/* Yes / no ledgers */
.ledger-list {
  display: grid;
  gap: 0.9rem;
  margin-top: 1.5rem;
}

.ledger-list li {
  position: relative;
  padding-left: 1.9rem;
  font-size: var(--step--1);
  line-height: 1.75;
  color: var(--text-dim);
}

.ledger-list li::before {
  position: absolute;
  left: 0;
  top: 0.1em;
  font-family: var(--font-body);
}

.ledger-yes li::before {
  content: "+";
  color: var(--perfect);
}

.ledger-no li::before {
  content: "\2212";
  color: var(--ember-deep);
}

.ledger-list strong {
  color: var(--text-bright);
}

/* Honesty cards */
.claim {
  border-left: 2px solid var(--ember-deep);
}

/* --------------------------------------------------------------------------
   Engine roadmap

   Deliberately quieter than the "working today" ledger above it. Unbuilt work
   should never out-shout shipped work on a page a client is buying from, so
   this reads as a dim track with ember markers rather than as feature cards.
   -------------------------------------------------------------------------- */

.roadmap-head {
  margin-top: clamp(3rem, 6vw, 4.5rem);
  margin-bottom: 2rem;
  padding-top: 2.25rem;
  border-top: 1px solid var(--rule);
}

.roadmap-head h3 {
  margin-bottom: 0.75rem;
}

.roadmap {
  display: grid;
  gap: 0;
  position: relative;
}

.roadmap-item {
  position: relative;
  padding: 1.75rem 0 1.75rem 2.25rem;
  border-bottom: 1px solid var(--rule);
}

.roadmap-item:last-child {
  border-bottom: 0;
}

/* The connecting track, drawn behind the markers. */
.roadmap-item::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--rule);
}

.roadmap-item:first-child::before {
  top: 1.75rem;
}

.roadmap-item:last-child::before {
  bottom: calc(100% - 2.5rem);
}

/* Hollow marker, because none of these is done. A filled one would read as
   shipped next to the solid dots used elsewhere on the site. */
.roadmap-item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 2.05rem;
  width: 11px;
  height: 11px;
  border: 2px solid var(--ember-deep);
  border-radius: 50%;
  background: var(--bg-sunk);
}

.roadmap-status {
  font-size: var(--step--1);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ember-deep);
  margin-bottom: 0.5rem;
}

.roadmap-item h4 {
  color: var(--text-bright);
  margin-bottom: 0.7rem;
}

.roadmap-item > p:not(.roadmap-status):not(.roadmap-why) {
  color: var(--text-dim);
  font-size: var(--step--1);
  line-height: 1.8;
  max-width: var(--measure);
}

.roadmap-why {
  margin-top: 1rem;
  padding-left: 0.9rem;
  border-left: 2px solid color-mix(in srgb, var(--juggle) 45%, transparent);
  font-size: var(--step--1);
  line-height: 1.75;
  color: var(--text-dim);
  max-width: var(--measure);
}

.roadmap-why-tag {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.78em;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--juggle);
}

/* Team members */
/* Avatar, name and role centre; the bio stays left-aligned because centred
   multi-line body copy is genuinely harder to read. */
.member {
  text-align: center;
}

.member > p:not(.member-role) {
  text-align: left;
}

.member-role {
  margin-top: -0.3rem;
  margin-bottom: 1rem;
  font-size: var(--step--1) !important;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ember) !important;
}

.avatar,
.sigil {
  width: 7rem;
  height: 7rem;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--ember) 40%, var(--rule));
  object-fit: cover;
}

.sigil {
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 50% 120%, rgb(255 106 42 / 0.28), transparent 70%),
    var(--bg-sunk);
}

.sigil span {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.06em;
  color: var(--ember-hot);
}

/* Mission statement */
.mission {
  font-size: var(--step-2);
  line-height: 1.55;
  font-family: var(--font-display);
  color: var(--text-bright);
}

/* 404 */
.notfound {
  max-width: 40rem;
  margin-inline: auto;
}

.code-404 {
  font-family: var(--font-display);
  font-size: var(--step-5);
  line-height: 1;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 28px rgb(255 106 42 / 0.3));
}

/* --------------------------------------------------------------------------
   14c. Manual chrome

   The site reads as a numbered manual rather than a brochure. Ordinals, figure
   frames with captions, and a rail that tracks where you are. Four accents
   carry fixed meanings and there is no fifth: --ember for the run and the
   build, --ember-hot for authored text and config, --juggle for tools and the
   airborne state, --perfect for validators and anything that passes.
   -------------------------------------------------------------------------- */

.section-head.is-numbered {
  display: grid;
  gap: 0.9rem;
}

.sec-num {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-numeric);
  font-size: var(--step--1);
  letter-spacing: 0.2em;
  color: var(--ember);
}

.sec-num::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--ember), transparent);
}

/* Figures. Generalises the existing .codefig and .seamfig so there is one
   border, one caption bar and one print rule for every figure on the site. */
.figframe {
  margin: 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: var(--bg-raise);
  overflow: hidden;
}

.figframe > figcaption {
  padding: 0.9rem 1.15rem;
  border-top: 1px solid var(--rule);
  background: var(--bg-sunk);
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--text-dim);
}

.fig-num {
  color: var(--ember);
  margin-right: 0.4rem;
}

/* Wide content scrolls inside its own box so the page never does. */
.scrollx {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Hero contents plate */
.manifest {
  display: grid;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: rgb(23 19 32 / 0.6);
  overflow: hidden;
}

.manifest li + li {
  border-top: 1px solid var(--rule);
}

.manifest a {
  display: grid;
  grid-template-columns: 2.2rem 1fr auto;
  align-items: baseline;
  gap: 0.9rem;
  padding: 0.8rem 1.1rem;
  transition: background-color 0.25s var(--ease);
}

.manifest a:hover {
  background: var(--ember-veil);
}

.manifest-ord {
  font-family: var(--font-numeric);
  font-size: var(--step--1);
  color: var(--ember-deep);
}

.manifest-label {
  font-size: var(--step--1);
  color: var(--text);
}

.manifest a:hover .manifest-label {
  color: var(--text-bright);
}

.manifest-num {
  font-family: var(--font-numeric);
  font-size: var(--step-1);
  line-height: 1;
  color: var(--ember-hot);
}

/* Fact plate: a two column definition list of hard specs. */
.specplate {
  display: grid;
  gap: 0;
  margin: 0;
}

@media (min-width: 40rem) {
  .specplate {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 2.5rem;
  }
}

.specplate div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--rule);
}

.specplate dt {
  flex: none;
  min-width: 8rem;
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.specplate dd {
  margin: 0;
  font-size: var(--step--1);
  color: var(--text-bright);
}

/* State chips, layered over the existing .badge */
.chip-shipped {
  border-color: color-mix(in srgb, var(--perfect) 45%, transparent);
  background: rgb(126 200 138 / 0.08);
  color: var(--perfect);
}

.chip-greybox {
  border-color: color-mix(in srgb, var(--juggle) 45%, transparent);
  background: rgb(134 180 255 / 0.08);
  color: var(--juggle);
}

.chip-empty {
  border-style: dashed;
  border-color: var(--rule);
  background: transparent;
  color: var(--text-dim);
}

/* Roster tables */
.rost {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--step--1);
  text-align: left;
}

.rost caption {
  padding: 0.9rem 1.15rem;
  border-bottom: 1px solid var(--rule);
  background: var(--bg-sunk);
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ember);
  text-align: left;
}

.rost th,
.rost td {
  padding: 0.7rem 1.15rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

.rost thead th {
  font-weight: 400;
  font-size: 0.86em;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  white-space: nowrap;
}

.rost tbody th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--step-0);
  color: var(--text-bright);
  white-space: nowrap;
}

.rost td {
  color: var(--text-dim);
  line-height: 1.7;
}

.rost tbody tr:last-child th,
.rost tbody tr:last-child td {
  border-bottom: 0;
}

/* A row for content that is deliberately not authored yet. */
.rost .row-empty th,
.rost .row-empty td {
  color: var(--text-dim);
}

.rost .row-empty th {
  font-style: italic;
  opacity: 0.75;
}

/* Hero splits once there is room for the contents plate beside the lockup. */
.hero-grid {
  display: grid;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: center;
}

@media (min-width: 68rem) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }
}

.manifest-wrap {
  align-self: center;
}

.manifest-cap {
  margin-top: 0.9rem;
  font-size: var(--step--1);
}

/* The hang. The band is the only place airborne state is coloured, per the
   accent rule, and its width on screen is real time rather than an easing. */
.hang-body {
  padding: clamp(1.5rem, 3vw, 2.25rem);
}

.hang-ticks {
  position: relative;
  height: 2.4rem;
  /* Ticks are placed by their --at time against the 2.0s the track spans. */
  --span: 2s;
}

.hang-tick {
  position: absolute;
  bottom: 0;
  left: calc(var(--at) / var(--span) * 100%);
  translate: -50% 0;
  padding-bottom: 0.5rem;
  font-size: var(--step--1);
  color: var(--juggle);
  white-space: nowrap;
}

.hang-tick::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 1px;
  height: 0.4rem;
  background: var(--juggle);
}

.hang-track {
  position: relative;
  height: 2.6rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--bg-sunk);
  overflow: hidden;
}

.hang-band {
  position: absolute;
  /* 0.8s of a 2s span, starting at 0.8s. */
  left: 40%;
  width: 40%;
  top: 0;
  bottom: 0;
  opacity: 1;
  background: repeating-linear-gradient(
    -45deg,
    rgb(134 180 255 / 0.16) 0 6px,
    transparent 6px 12px
  );
  border-inline: 1px solid color-mix(in srgb, var(--juggle) 55%, transparent);
  transition: opacity 0.12s linear;
}

.hang-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 100%;
  background: linear-gradient(90deg, var(--ember-deep), var(--ember));
  opacity: 0.85;
}

.hangfig[data-phase="hang"] .hang-fill,
.hangfig[data-phase="fall"] .hang-fill {
  background: linear-gradient(90deg, var(--ember-deep), var(--juggle));
}

.hang-mark {
  position: absolute;
  right: 0.6rem;
  top: 50%;
  translate: 0 -50%;
  font-family: var(--font-numeric);
  font-size: 0.72rem;
  color: var(--text-bright);
}

.hang-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.1rem;
}

.hang-state {
  font-size: var(--step--1);
  color: var(--text-dim);
  /* Reserve the line so the label changing does not reflow the figure. */
  min-height: 1.75em;
}

.hangfig[data-phase="hang"] .hang-state {
  color: var(--juggle);
}

/* Content pipeline: text in, validated definitions out. */
.pipefig {
  display: flex;
  align-items: stretch;
  gap: 0;
  padding: clamp(1.25rem, 3vw, 2rem);
  min-width: 46rem;
}

.pf-box {
  flex: 1 1 0;
  padding: 1rem 1.1rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--bg-sunk);
}

.pf-title {
  font-family: var(--font-display);
  font-size: var(--step-0);
  color: var(--text-bright);
}

.pf-sub {
  margin-top: 0.35rem;
  font-size: var(--step--1);
  line-height: 1.6;
  color: var(--text-dim);
}

/* Four accents, fixed meanings. Config is authored text, tools are tooling,
   gates are validators, and the output is the build. */
.pf-config {
  border-color: color-mix(in srgb, var(--ember-hot) 50%, transparent);
}
.pf-config .pf-title {
  color: var(--ember-hot);
}

.pf-tool {
  border-color: color-mix(in srgb, var(--juggle) 50%, transparent);
}
.pf-tool .pf-title {
  color: var(--juggle);
}

.pf-gate {
  border-color: color-mix(in srgb, var(--perfect) 50%, transparent);
}
.pf-gate .pf-title {
  color: var(--perfect);
}

.pf-out {
  border-color: color-mix(in srgb, var(--ember) 50%, transparent);
}
.pf-out .pf-title {
  color: var(--ember);
}

.pf-arrow {
  flex: none;
  align-self: center;
  width: 2rem;
  height: 1px;
  background: var(--rule);
  position: relative;
}

.pf-arrow::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  translate: 0 -50%;
  border-left: 5px solid var(--rule);
  border-block: 4px solid transparent;
}

/* --------------------------------------------------------------------------
   Hit resolver

   Three states only. is-run is full strength, is-skip means the step was
   evaluated and did nothing, is-off means the hit never got that far. No
   animation anywhere, so prefers-reduced-motion needs no branch here.
   -------------------------------------------------------------------------- */

.resolver-body {
  padding: clamp(1.25rem, 3vw, 2rem);
}

.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.presets .btn {
  padding: 0.6em 1em;
}

.toggles {
  display: grid;
  gap: 1.5rem;
  padding-bottom: 1.75rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--rule);
}

@media (min-width: 46rem) {
  .toggles .toggle-set {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Without JS the switches cannot do anything, so hide them and leave the
   eleven steps as a plain, complete ordered list. */
.no-js .toggles {
  display: none;
}

.toggle-set {
  display: grid;
  gap: 0.6rem;
  border: 0;
  padding: 0;
  margin: 0;
  min-width: 0;
}

.toggle-set legend {
  padding: 0;
  margin-bottom: 0.7rem;
  font-size: var(--step--1);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ember);
}

.toggle {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: var(--step--1);
  color: var(--text-dim);
  cursor: pointer;
}

.toggle input {
  flex: none;
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--ember);
  cursor: pointer;
}

.toggle:hover {
  color: var(--text-bright);
}

/* The spine */
.steps {
  position: relative;
  display: grid;
  gap: 0.35rem;
}

.steps::before {
  content: "";
  position: absolute;
  left: 0.87rem;
  top: 1rem;
  bottom: 1rem;
  width: 2px;
  background: var(--rule);
}

.steps li {
  position: relative;
  display: grid;
  grid-template-columns: 1.75rem 1fr;
  align-items: start;
  gap: 0.9rem;
  padding: 0.45rem 0;
  transition: opacity 0.2s var(--ease);
}

.steps li p {
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--text-dim);
}

.step-n {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  border: 1px solid var(--rule);
  background: var(--bg-raise);
  font-family: var(--font-numeric);
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* Only meaningful once JS is driving the states. */
.resolver.is-live .steps li.is-run .step-n {
  border-color: var(--ember);
  background: var(--ember);
  color: #14100c;
}

.resolver.is-live .steps li.is-run p {
  color: var(--text-bright);
}

.resolver.is-live .steps li.is-half .step-n {
  border-color: var(--ember);
  color: var(--ember);
}

.resolver.is-live .steps li.is-half p {
  color: var(--text);
}

.resolver.is-live .steps li.is-skip {
  opacity: 0.45;
}

.resolver.is-live .steps li.is-off {
  opacity: 0.2;
}

.outcome {
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.outcome-val {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ember-hot);
  display: block;
  margin-top: 0.35rem;
}

/* Section rail. Fixed rather than a page-level grid, so it needs no change to
   any section's markup and cannot disturb the layout when it is hidden. */
.railnav {
  display: none;
}

@media (min-width: 86rem) {
  .railnav {
    display: block;
    position: fixed;
    left: max(1.25rem, calc((100vw - var(--shell)) / 2 - 8.5rem));
    top: 50%;
    translate: 0 -50%;
    z-index: 40;
  }

  .railnav ol {
    display: grid;
    gap: 0.55rem;
  }

  .railnav a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-numeric);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    color: var(--text-dim);
    opacity: 0.55;
    transition:
      opacity 0.25s var(--ease),
      color 0.25s var(--ease);
  }

  .railnav a::before {
    content: "";
    width: 14px;
    height: 1px;
    background: currentColor;
    transition: width 0.25s var(--ease);
  }

  .railnav a:hover,
  .railnav a.is-current {
    opacity: 1;
    color: var(--ember);
  }

  .railnav a.is-current::before {
    width: 26px;
  }
}

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

.site-footer {
  border-top: 1px solid var(--rule);
  background: var(--bg-sunk);
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  margin-bottom: 3rem;
}

.footer-head {
  font-family: var(--font-display);
  font-size: var(--step-0);
  color: var(--text-bright);
  margin-bottom: 1.1rem;
}

.footer-grid a {
  display: block;
  padding-block: 0.3rem;
  font-size: var(--step--1);
  color: var(--text-dim);
  transition: color 0.25s var(--ease);
}

.footer-grid a:hover {
  color: var(--ember);
}

.social-row {
  display: flex;
  gap: 0.75rem;
}

.social-row a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  color: var(--text-dim);
  transition:
    color 0.25s var(--ease),
    border-color 0.25s var(--ease),
    background-color 0.25s var(--ease),
    transform 0.25s var(--ease);
}

.social-row a:hover {
  color: var(--ember-hot);
  border-color: var(--ember);
  background: var(--ember-veil);
  transform: translateY(-2px);
}

.social-row svg {
  width: 1.15rem;
  height: 1.15rem;
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
  font-size: var(--step--1);
  color: var(--text-dim);
}

/* 404 carries a stripped footer with no columns above it, so there is nothing
   for the rule to divide. */
.footer-base-bare {
  padding-top: 0;
  border-top: 0;
}

.footer-base a:hover {
  color: var(--ember);
}

/* --------------------------------------------------------------------------
   16. Motion & print
   -------------------------------------------------------------------------- */

@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;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .site-footer,
  .embers,
  .ember-bed,
  .hearth,
  .grove,
  .menu-toggle,
  .skip {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

  /* Recolouring body alone is not enough. Headings carry an explicit light
     colour, and .ember-text paints its glyphs transparent so they would print
     as nothing at all. */
  h1,
  h2,
  h3,
  h4,
  p,
  li,
  strong,
  .dim,
  .lede,
  .panel p,
  .eyebrow,
  .stat-num,
  .stat-label {
    color: #000 !important;
  }

  .ember-text {
    background: none;
    -webkit-text-fill-color: #000;
    color: #000;
    filter: none;
  }

  .panel,
  .biome-list,
  .codefig,
  .seamfig,
  .framed {
    border-color: #999;
    background: transparent;
  }

  /* A URL the reader cannot see is not much of a link on paper. */
  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.85em;
    color: #555;
  }
}