/* The public how-to-play page (DEC-790). Static, same origin (CSP style-src 'self'); logical properties for RTL. */
:root {
  color-scheme: dark light;
  --bg: #0d1420;
  --panel: #152033;
  --line: #2b3a55;
  --text: #eef3fb;
  --muted: #b8c4d8;
  --accent: #ffd166;
  --link: #8cc8ff;
  --ok: #7be0a5;
  --warn: #ffb27a;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Arabic", "Noto Sans SC", "Noto Sans Devanagari", sans-serif;
  line-height: 1.5;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f6f8fc; --panel: #ffffff; --line: #c9d3e3; --text: #111a29; --muted: #3d4a60; --accent: #8a5a00; --link: #0b55b5; --ok: #116a3a; --warn: #8f3d00; }
}
* { box-sizing: border-box; }
body { margin: 0 auto; max-inline-size: 64rem; padding: 1rem clamp(0.75rem, 3vw, 2rem) 3rem; background: var(--bg); color: var(--text); }
a { color: var(--link); text-underline-offset: 0.15em; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.skip { position: absolute; inset-inline-start: -999px; }
.skip:focus { inset-inline-start: 1rem; inset-block-start: 1rem; background: var(--panel); padding: 0.5rem 1rem; z-index: 2; }
.brand { margin: 0; color: var(--muted); font-weight: 600; letter-spacing: 0.02em; }
.brand span { color: var(--accent); }
h1 { font-size: clamp(1.5rem, 4vw, 2.25rem); margin: 0.25rem 0 0.5rem; }
h2 { font-size: 1.4rem; margin-block: 2rem 0.75rem; border-block-end: 1px solid var(--line); padding-block-end: 0.25rem; }
h3 { font-size: 1.2rem; margin: 0 0 0.5rem; }
h4 { font-size: 1rem; margin: 1rem 0 0.25rem; color: var(--muted); }
.langs ul, .modes, .toc ol { list-style: none; padding: 0; margin: 0.5rem 0; display: flex; flex-wrap: wrap; gap: 0.25rem 0.75rem; }
.langs [aria-current] { font-weight: 700; }
.toc ol { gap: 0.25rem 1rem; }
.modes { display: grid; gap: 0.5rem; }
.draft { border-inline-start: 4px solid var(--warn); padding: 0.5rem 0.75rem; background: var(--panel); }
.note { color: var(--muted); }
.button { display: inline-block; padding: 0.5rem 0.9rem; margin-block: 0.15rem; border: 1px solid var(--line); border-radius: 0.5rem; background: var(--panel); text-decoration: none; min-block-size: 44px; }
.button.primary { border-color: var(--accent); color: var(--text); font-weight: 600; }
.sport { background: var(--panel); border: 1px solid var(--line); border-radius: 0.75rem; padding: 1rem; margin-block: 1rem; }
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; inline-size: 100%; margin-block: 0.75rem; font-size: 0.95rem; }
caption { text-align: start; font-weight: 600; color: var(--muted); padding-block-end: 0.25rem; }
th, td { text-align: start; padding: 0.35rem 0.5rem; border-block-end: 1px solid var(--line); vertical-align: top; }
thead th { color: var(--muted); font-weight: 600; }
kbd { display: inline-block; min-inline-size: 1.6em; text-align: center; padding: 0 0.35em; border: 1px solid var(--line); border-block-end-width: 2px; border-radius: 0.3em; font: 600 0.9em ui-monospace, monospace; }
.badge { font-size: 0.85rem; padding: 0.05rem 0.45rem; border-radius: 1rem; border: 1px solid var(--line); color: var(--muted); }
.badge.ok { color: var(--ok); }
.badge.off { color: var(--warn); }
.events { columns: 16rem; column-gap: 1.5rem; padding-inline-start: 1.25rem; }
details summary { cursor: pointer; margin-block: 0.75rem 0.25rem; font-weight: 600; }
.top { margin: 0.5rem 0 0; font-size: 0.9rem; }
footer { margin-block-start: 2rem; color: var(--muted); font-size: 0.9rem; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }