/* The site's theme (docs/.vitepress/theme/cmr2.css): the game's menus. Sage screen, mint panels, white
   separators, the language flag's red; dark ink on the sage (white on it is 2.2:1). */
:root {
  --sage: #9cb4ac;
  --sage-light: #a9bfb7;
  --mint: #d7ebda;
  --ink: #14231e;
  --ink-2: #2d3f39;
  --red: #c80000;
  --red-dark: #8a0000;
  --line: rgba(255, 255, 255, 0.85);
  --ok: #173a2f;
  --warn: #6b4a00;
  --bad: var(--red-dark);
  --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --dots: radial-gradient(circle, rgba(255, 255, 255, 0.8) 2.4px, transparent 2.9px) 0 50% / 12px 8px repeat-x;
}
* { box-sizing: border-box; }
html, body { margin: 0; color: var(--ink); font: 15px/1.6 var(--font); }
html, body { background: var(--sage); }
a { color: var(--red-dark); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--red); }
code { font-family: var(--mono); font-size: .88em; background: rgba(215, 235, 218, 0.7); padding: .1em .35em; border-radius: 3px; }
kbd { display: inline-block; min-width: 1.6em; padding: 0 6px; border: 1px solid #7f978f; border-bottom-width: 2px;
  border-radius: 3px; background: var(--mint); font-family: var(--mono); font-size: .85em; line-height: 1.6; text-align: center; }
/* Lowercase light Helvetica, as the menus. */
h1 { font-size: 2.4rem; line-height: 1.15; margin: 1.8rem 0 .6rem; font-weight: 300; letter-spacing: -0.02em; text-transform: lowercase; }
h2 { font-size: 1.25rem; margin: 0 0 .6rem; font-weight: 400; text-transform: lowercase; }
.small { font-size: .85rem; color: var(--ink-2); }

.bar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0 24px; height: 64px; background: var(--sage); }
.bar::after { content: ""; position: absolute; left: 0; right: 0; bottom: -10px; height: 8px; background: var(--dots); pointer-events: none; }
.brand { display: flex; align-items: center; gap: .55rem; color: var(--ink); font-size: 20px; text-decoration: none; letter-spacing: -0.01em; }
.bar nav { display: flex; font-size: 15px; }
.bar nav a { color: var(--ink); text-decoration: none; padding: 0 12px; }
.bar nav a + a { border-left: 1px solid var(--line); }
.bar nav a[aria-current] { color: var(--red-dark); }

main { max-width: 1100px; margin: 0 auto; padding: 8px 24px 32px; }
.lead { color: var(--ink-2); max-width: 60rem; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; margin: 1.4rem 0; }
/* Menu items: a white separator down the left edge. */
.card { border-left: 1px solid var(--line); padding: 4px 22px 8px; }
.card ul { padding-left: 1.2rem; margin: 0; }
.card li { margin: .35rem 0; }
.row { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; margin: .8rem 0; }

/* Buttons: mint, the primary one in the flag's red. */
button { font: inherit; font-size: 15px; font-weight: 700; text-transform: lowercase; cursor: pointer; border-radius: 2px;
  padding: .45rem 1.15rem; border: 1px solid transparent; background: var(--mint); color: var(--ink); }
button:hover { background: #fff; }
button.primary { background: var(--red); color: #fff; }
button.primary:hover { background: #b00000; }
button.link { background: none; border: none; padding: .45rem .2rem; color: var(--red-dark); font-weight: 400; text-decoration: underline; }
button.link:hover { background: none; color: var(--red); }
button:disabled { opacity: .5; cursor: default; }
button:focus-visible, a:focus-visible, canvas:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

.checks { list-style: none; padding: 0 !important; margin: .8rem 0 0 !important; }
.checks li { padding-left: 1.4rem; position: relative; }
.checks li::before { position: absolute; left: 0; font-weight: 700; }
.checks li.ok::before { content: "+"; color: var(--ok); }
.checks li.bad { color: var(--bad); }
.checks li.bad::before { content: "x"; }
progress { width: 100%; height: 10px; accent-color: var(--red); margin-top: .8rem; }

.message { max-width: 60rem; padding: .6rem 1rem; border-left: 4px solid #fff; background: rgba(215, 235, 218, 0.6); }
.message.warn { border-color: var(--warn); }
.message.error { border-color: var(--red); }

/* The game: 4:3 in the window (the original's modes are all 4:3); the full screen in fullscreen, where the
   game draws at the display's size. */
#game { margin: 1rem 0; }
.stage { position: relative; background: #000; overflow: hidden; margin: 0 auto;
  width: min(100%, calc((100vh - 150px) * 4 / 3)); aspect-ratio: 4 / 3; box-shadow: 0 0 0 1px var(--line); }
.stage canvas { display: block; width: 100%; height: 100%; }
.stage:fullscreen { width: 100vw; height: 100vh; aspect-ratio: auto; box-shadow: none; }
.stage:-webkit-full-screen { width: 100vw; height: 100vh; aspect-ratio: auto; box-shadow: none; }
.toolbar { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; justify-content: center; margin-top: .8rem; }
.toolbar button { padding: .35rem .9rem; font-size: .85rem; }

#controls { margin-top: 2rem; }

.foot .powered { margin: 0 0 8px; display: flex; align-items: center; justify-content: center; gap: 8px; }
.foot .powered img { display: block; }
.foot { max-width: 1100px; margin: 0 auto; padding: 24px; border-top: 1px solid var(--line); color: var(--ink-2); font-size: .8rem; text-align: center; }

[hidden] { display: none !important; }
@media (max-width: 640px) { .bar nav a:not([aria-current]):not(:last-child) { display: none; } }