/* geow2.com. One dark look, on purpose: the game's own world is a black
   field with a blue grid and neon lines. The page sits on a canvas grid
   (js/site.js) that bends toward the pointer like a gravity well.
   Layout: a hero (text beside a live clip), then full-width sections in a
   single 1120 px column; the mode cards alternate clip and text. */

@font-face {
  font-family: "Alpha Prota";
  src: url("../fonts/alpha-prota/AlphaProta-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "MatrixType";
  src: url("../fonts/matrixtype/MatrixType-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "MatrixType";
  src: url("../fonts/matrixtype/MatrixType-Bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "Rijusans";
  src: url("../fonts/rijusans/Rijusans-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Rijusans";
  src: url("../fonts/rijusans/Rijusans-Italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

:root {
  /* Colour: the icon's grid blue and G2 magenta, on near-black. */
  --void: #03040b;
  --panel: rgba(8, 11, 28, 0.86);
  --edge: #1b2b6e;
  --grid: #2864ff;
  --glow: #ff28c8;
  --core: #ffebfa;
  --ink: #e4e9ff;
  --dim: #98a1cc;
  --cyan: #6fe8ff;

  /* Type */
  --display: "Alpha Prota", "Trebuchet MS", system-ui, sans-serif;
  --readout: "MatrixType", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --body: "Rijusans", system-ui, -apple-system, "Segoe UI", sans-serif;

  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.375rem;
  --step-2: clamp(1.6rem, 1.2rem + 1.6vw, 2.25rem);
  --step-3: clamp(3.5rem, 2rem + 8vw, 7.5rem);

  --gutter-l: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
  --radius: 6px;
  color-scheme: dark;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--void);
  color: var(--ink);
  font: 400 var(--step-0) / 1.6 var(--body);
  overflow-x: hidden;
}

#grid {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  display: block;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding-left: var(--gutter-l);
  padding-right: var(--gutter-r);
}

a { color: var(--cyan); text-underline-offset: 0.18em; }
a:hover { color: var(--core); }
:focus-visible { outline: 2px solid var(--glow); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3 { font-family: var(--display); font-weight: 400; margin: 0; text-wrap: balance; line-height: 1.1; }
h2 { font-size: var(--step-2); color: var(--core); text-shadow: 0 0 18px rgba(255, 40, 200, 0.45); }
h3 { font-size: var(--step-1); }
p { margin: 0; }
code {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 0.9em;
  color: var(--core);
  background: rgba(40, 100, 255, 0.14);
  padding: 0.05em 0.35em;
  border-radius: 3px;
  overflow-wrap: anywhere;
}
.readout { font-family: var(--readout); letter-spacing: 0.04em; font-variant-numeric: tabular-nums; }
.small { font-size: var(--step--1); color: var(--dim); }

/* Hero */

.hero { padding-block: clamp(32px, 6vw, 72px) clamp(8px, 2vw, 24px); }
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
}
.hero-text { display: grid; gap: 20px; min-width: 0; }
.wordmark {
  font-size: var(--step-3);
  line-height: 0.9;
  color: #fff;
  text-shadow: 0 0 6px var(--glow), 0 0 24px var(--glow), 0 0 60px rgba(255, 40, 200, 0.6);
}
.tagline { font-family: var(--display); font-size: var(--step-1); color: var(--cyan); line-height: 1.3; }
.lede { max-width: 56ch; }
.needs { font-size: var(--step--1); color: var(--dim); }

.download { display: grid; gap: 10px; justify-items: start; }
.btn {
  display: inline-grid;
  gap: 2px;
  padding: 12px 20px;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--ink);
}
.btn-primary {
  border: 1px solid var(--glow);
  background: rgba(255, 40, 200, 0.12);
  box-shadow: 0 0 18px rgba(255, 40, 200, 0.35), inset 0 0 12px rgba(255, 40, 200, 0.18);
  transition: box-shadow 0.2s, background 0.2s;
}
.btn-primary:hover {
  color: #fff;
  background: rgba(255, 40, 200, 0.22);
  box-shadow: 0 0 28px rgba(255, 40, 200, 0.6), inset 0 0 14px rgba(255, 40, 200, 0.3);
}
.btn-label { font-family: var(--display); font-size: var(--step-1); }
.btn .readout { font-size: var(--step--1); color: var(--core); }
.dl-others { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: var(--step--1); }
.dl-others .readout { color: var(--dim); margin-left: 0.3em; }

.hero-clip, .mode-clip { margin: 0; min-width: 0; }
.clip {
  display: block;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  background: #000;
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  object-fit: cover;
}
.hero-clip .clip { box-shadow: 0 0 40px rgba(40, 100, 255, 0.35), 0 0 120px rgba(40, 100, 255, 0.15); }

/* Other pages' heads */

.hero-page .wrap { display: grid; gap: 16px; }
.crumb { font-size: var(--step--1); }
.page-title {
  font-size: clamp(2.6rem, 1.6rem + 5vw, 5rem);
  line-height: 0.95;
  color: #fff;
  text-shadow: 0 0 6px var(--glow), 0 0 24px var(--glow), 0 0 60px rgba(255, 40, 200, 0.6);
}
.hero-page .lede { max-width: 68ch; }

/* The link to Online scores on the main page */

.online-callout { font-size: var(--step--1); }
.online-callout a { font-family: var(--display); font-size: var(--step-0); }
.btn-inline { display: inline-grid; }

/* Sections */

.section { padding-block: clamp(24px, 3.5vw, 44px); display: grid; gap: 20px; }
.section-lede { max-width: 68ch; color: var(--ink); }
.more { font-size: var(--step--1); }

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  counter-reset: step;
}
.step {
  counter-increment: step;
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  padding: 20px;
  display: grid;
  gap: 10px;
  align-content: start;
  min-width: 0;
}
.step h3::before {
  content: counter(step);
  font-family: var(--readout);
  color: var(--glow);
  margin-right: 0.5em;
}
.cmd {
  display: flex;
  align-items: stretch;
  gap: 0;
  border: 1px solid var(--edge);
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.5);
  min-width: 0;
}
.cmd code {
  flex: 1;
  min-width: 0;
  background: none;
  padding: 8px 10px;
  border-radius: 0;
}
.copy {
  flex: none;
  font: 400 var(--step--1) var(--body);
  color: var(--cyan);
  background: rgba(40, 100, 255, 0.12);
  border: 0;
  border-left: 1px solid var(--edge);
  padding: 0 12px;
  cursor: pointer;
}
.copy:hover { color: #fff; background: rgba(40, 100, 255, 0.25); }

.numbered { margin: 0; padding-left: 1.6em; display: grid; gap: 14px; max-width: 72ch; }
.numbered li { padding-left: 0.3em; }
.numbered li::marker { font-family: var(--readout); color: var(--glow); }
.numbered li > p + p { margin-top: 10px; }
.facts { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 8px; }
.facts .readout { color: var(--cyan); margin-right: 0.6em; }

/* Modes */

.mode {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: clamp(20px, 3.5vw, 48px);
  align-items: center;
  padding-block: 12px;
}
.mode:nth-of-type(even) .mode-clip { order: 2; }
.mode-text { display: grid; gap: 12px; min-width: 0; }
.mode-text h3 {
  font-size: var(--step-2);
  color: #fff;
  text-shadow: 0 0 14px rgba(111, 232, 255, 0.55);
}
.mode-text p { max-width: 60ch; }
.stats { color: var(--cyan); font-size: var(--step--1); text-transform: uppercase; }
.stats span { color: var(--glow); padding-inline: 0.25em; }
.mode-wide .mode-text h2 { font-size: var(--step-2); }

/* Screenshots */

.gallery {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.gallery a { display: block; border-radius: var(--radius); }
.gallery img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.gallery a:hover img { border-color: var(--grid); box-shadow: 0 0 22px rgba(40, 100, 255, 0.5); }

/* Faithful */

.cols { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(20px, 4vw, 56px); align-items: start; }
.col { display: grid; gap: 14px; min-width: 0; }
.features { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.features li {
  display: grid;
  grid-template-columns: 13.5em minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--edge);
}
.features .readout { color: var(--cyan); text-transform: uppercase; font-size: var(--step--1); }

/* Footer */

.footer { border-top: 1px solid var(--edge); background: rgba(3, 4, 11, 0.9); }
.footer-inner { padding-block: 32px 48px; display: grid; gap: 16px; }
.byline { font-family: var(--display); font-size: var(--step-1); color: var(--core); }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.legal { font-size: var(--step--1); color: var(--dim); max-width: 90ch; }
#site-version { color: var(--edge); }

/* Narrow screens */

@media (max-width: 860px) {
  .hero-inner, .mode, .cols { grid-template-columns: minmax(0, 1fr); }
  .mode:nth-of-type(even) .mode-clip { order: 0; }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 480px) {
  .gallery { grid-template-columns: minmax(0, 1fr); }
  .features li { grid-template-columns: minmax(0, 1fr); gap: 2px; }
}

@media (prefers-reduced-motion: reduce) {
  .btn-primary, .gallery img { transition: none; }
}