/* Shared design for the converter, guides, palette references and game. */
:root {
  color-scheme: dark;
  --pink: #ff79b0;
  --cyan: #5bd5e8;
  --yellow: #f3d77c;
  --green: #83deb0;
  --red: #ffb4c5;
  --bg: #101317;
  --bg-card: #191e25;
  --bg-deep: #0c0f13;
  --bg-input: #242b35;
  --text: #f5f4ef;
  --text-dim: #afb6c2;
  --border: #343b46;
  --button-text: #231018;
  --font-pixel: 'Press Start 2P', monospace;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 20px; }
body { margin: 0; }
.page-body { font: 16px/1.65 var(--font-body); color: var(--text); background: var(--bg); border-top: 4px solid var(--pink); min-height: 100vh; }
button, input, select, textarea { font: inherit; }
a { color: var(--cyan); text-underline-offset: 3px; }
a:hover { color: var(--pink); }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }
img { max-width: 100%; height: auto; }
[hidden] { display: none !important; }
main { scroll-margin-top: 24px; }
.skip-link { position: absolute; left: 16px; top: -100px; z-index: 10000; padding: 12px 16px; background: var(--pink); color: var(--button-text); font-weight: 600; }
.skip-link:focus { top: 12px; color: var(--button-text); }

/* Navigation and footer remain identical across sections. */
.site-nav { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 28px; max-width: 1100px; margin: 0 auto; padding: 22px 32px; border-bottom: 1px solid var(--border); }
.site-nav-brand, .site-footer-brand { font: 12px/1.6 var(--font-pixel); color: var(--pink); text-decoration: none; white-space: nowrap; }
.site-nav-links, .site-footer-links { display: flex; flex-wrap: wrap; gap: 8px 20px; list-style: none; margin: 0; padding: 0; }
.site-nav-links a { display: inline-flex; align-items: center; min-height: 36px; font-size: 14px; color: var(--text); text-decoration: none; }
.site-nav-links a:hover, .site-nav-links a[aria-current="page"] { color: var(--pink); }
.site-nav-links a[aria-current="page"] { text-decoration: underline; text-underline-offset: 6px; }
.site-footer { max-width: 1100px; margin: 0 auto; padding: 28px 32px 36px; }
.site-footer-inner { display: flex; align-items: start; justify-content: space-between; flex-wrap: wrap; gap: 24px 40px; padding-top: 28px; border-top: 1px solid var(--border); }
.site-footer-links { max-width: 410px; gap: 6px 18px; }
.site-footer-links a { display: inline-block; padding: 8px 0; color: var(--text-dim); font-size: 13px; text-decoration: none; }
.site-footer-links a:hover { color: var(--pink); }
.site-footer-tagline { max-width: 320px; color: var(--text-dim); font-size: 13px; margin: 14px 0 0; }

/* Readable articles and supporting pages. */
.page { max-width: 800px; margin: 0 auto; padding: 40px 24px; }
.page h1 { font-size: clamp(28px, 4.5vw, 42px); line-height: 1.15; letter-spacing: -1px; margin: 0 0 16px; }
.page h2 { font-size: clamp(23px, 3vw, 28px); line-height: 1.3; letter-spacing: -.5px; margin: 36px 0 16px; }
.page h3 { font-size: 19px; line-height: 1.4; margin: 26px 0 10px; }
.page p, .page li { font-size: 16px; line-height: 1.8; color: #d3d7de; }
.page p { margin: 0 0 18px; }
.page .lead { color: var(--text-dim); font-size: 18px; line-height: 1.7; margin: 0 0 24px; }
.page strong { color: var(--text); }
.page ul, .page ol { margin: 0 0 24px; padding-left: 24px; }
.page li { margin-bottom: 10px; }
.page .meta-note, .page .guide-meta, .page .updated { font-size: 13px; color: var(--text-dim); }
.page .guide-meta { margin: 0 0 20px; }
.page .updated { margin: 0 0 28px; }
.page section[id] { scroll-margin-top: 24px; }
.info-card { background: var(--bg-card); border: 1px solid var(--border); padding: 20px; margin: 0 0 16px; border-radius: 6px; }
.info-card h3 { margin: 0 0 8px; }
.info-card p { margin: 0; }
.related-guides { border-top: 1px solid var(--border); padding-top: 24px; margin-top: 32px; }
.related-guides ul { margin-top: 12px; }

/* Guide and palette navigation. */
.guide-grid, .palette-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 24px; margin: 24px 0; }
.guide-card { display: flex; flex-direction: column; border-top: 2px solid var(--border); padding-top: 16px; text-decoration: none; }
.guide-card:hover { border-color: var(--pink); text-decoration: none; }
.guide-card .guide-tag { font: 12px/1.5 ui-monospace, monospace; letter-spacing: .04em; color: var(--pink); }
.guide-card h3 { margin: 8px 0 10px; font-size: 19px; line-height: 1.4; color: var(--text); }
.guide-card p { margin: 0; font-size: 15px; color: var(--text-dim); line-height: 1.7; }
.page a.guide-card, .page a.palette-card { text-decoration: none; }
.palette-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; display: block; text-decoration: none; }
.palette-card:hover { border-color: var(--pink); }
.palette-card img { display: block; width: 100%; height: auto; image-rendering: pixelated; }
.palette-card .swatch-strip { height: 12px; border: 0; margin: 0; }
.palette-card h3 { font-size: 18px; margin: 16px 18px 8px; color: var(--text); }
.palette-card p { font-size: 15px; color: var(--text-dim); margin: 0 18px 20px; }
.cta-box { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 24px; margin: 30px 0; }
.cta-box p { margin: 0 0 16px; }
.cta-btn, .back-home { display: inline-block; padding: 12px 18px; font: 600 14px/1.5 var(--font-body); color: var(--button-text); background: var(--pink); border: 1px solid var(--pink); border-radius: 5px; text-decoration: none; cursor: pointer; }
.page a.cta-btn, .page a.back-home { color: var(--button-text); text-decoration: none; }
.cta-btn:hover, .back-home:hover { filter: brightness(1.08); color: var(--button-text); }
.back-home { margin-top: 24px; }

/* Examples, figures and before/after comparisons. */
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); gap: 24px; margin: 24px 0; }
.gallery-card { margin: 0; }
.gallery-card img { display: block; width: 100%; height: auto; image-rendering: pixelated; border-radius: 6px; }
.gallery-cap { padding: 12px 0 0; }
.gallery-cap .sub { display: block; color: var(--text); font-size: 15px; line-height: 1.5; }
.gallery-cap .pal { font-size: 13px; color: var(--text-dim); }
.ba { display: grid; grid-template-columns: minmax(0,1fr) auto minmax(0,1fr); align-items: center; gap: 12px; margin: 24px 0 8px; }
.ba img { width: 100%; height: auto; image-rendering: pixelated; border-radius: 5px; }
.ba .arrow { color: var(--pink); }
.ba-labels { display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; font-size: 12px; color: var(--text-dim); }
.ba-labels span:nth-child(2) { visibility: hidden; }
.fig { margin: 24px 0; }
.fig img, .compare-grid img { display: block; width: 100%; height: auto; image-rendering: pixelated; background: var(--bg-deep); border-radius: 5px; }
.fig figcaption, .compare-grid figcaption { font-size: 12px; line-height: 1.6; color: var(--text-dim); margin-top: 10px; }
.fig figcaption b, .compare-grid figcaption b { color: var(--pink); font-weight: 500; }
.compare-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); gap: 20px; margin: 24px 0; }
.compare-grid.two { grid-template-columns: repeat(2, minmax(0,1fr)); }
.compare-grid figure { margin: 0; }

/* Reference data. Tables scroll within their own container on phones. */
.table-wrap { overflow-x: auto; margin: 24px 0; }
.page table { width: 100%; border-collapse: collapse; font-size: 14px; line-height: 1.6; color: #d3d7de; background: var(--bg-card); }
.page th, .page td { padding: 12px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border); }
.page th { color: var(--text); background: var(--bg-deep); font-weight: 600; }
.page code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .875em; color: var(--yellow); background: var(--bg-deep); padding: 2px 5px; border-radius: 3px; }
.swatch-strip { display: flex; height: 44px; margin: 20px 0; border-radius: 4px; overflow: hidden; }
.swatch-strip span { flex: 1; }
.swatch-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 150px), 1fr)); gap: 12px; margin: 24px 0; }
.swatch { background: var(--bg-card); border: 1px solid var(--border); border-radius: 5px; overflow: hidden; }
.swatch i { display: block; height: 56px; }
.swatch b { display: block; font: 14px/1.5 ui-monospace, monospace; color: var(--text); padding: 10px 12px 4px; }
.swatch small { display: block; color: var(--text-dim); font-size: 12px; padding: 0 12px 12px; }
.key-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 160px), 1fr)); gap: 12px; margin: 24px 0; }
.key-facts div { background: var(--bg-card); border: 1px solid var(--border); border-radius: 5px; padding: 16px; }
.key-facts dt { color: var(--text-dim); font-size: 13px; margin: 0 0 6px; }
.key-facts dd { margin: 0; color: var(--text); font-size: 15px; }
.policy-nav { display: flex; flex-wrap: wrap; gap: 12px 20px; padding: 16px 0; border-block: 1px solid var(--border); }
.privacy-choice { font: inherit; padding: 12px 16px; background: var(--bg-card); color: var(--cyan); border: 1px solid var(--cyan); border-radius: 5px; cursor: pointer; }
.mobile-app-note { margin-top: 28px; padding: 24px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; }
.page .mobile-app-note h2 { margin-top: 0; }

@media (max-width: 600px) {
  .site-nav { padding: 18px; gap: 12px; }
  .site-nav-links { gap: 0 16px; }
  .site-nav-links a { font-size: 13px; min-height: 44px; }
  .site-footer { padding: 24px 18px; }
  .site-footer-links a { min-height: 44px; }
  .page { padding: 28px 18px; }
  .page .lead { font-size: 17px; }
  .compare-grid { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
  .swatch-grid, .key-facts { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .cta-box, .mobile-app-note { padding: 20px; }
}
@media (max-width: 420px) { .guide-grid { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}