/* Landing, About and How to play: full width, no narrow column. */
:root { color-scheme: dark light; --bg: #14161a; --fg: #e9e7e0; --dim: #a4abb6; --accent: #e0b43a; --accent-ink: #1a1400; --panel: #1d2026; --line: #6d7685; }
:root[data-theme="light"] { --bg: #efece3; --fg: #1d1f26; --dim: #4a505c; --accent: #8a6200; --accent-ink: #ffffff; --panel: #ffffff; --line: #7a828f; }
body { margin: 0; background: var(--bg); color: var(--fg); font: clamp(15px, 0.5vw + 12px, 20px)/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
body { height: 100dvh; display: flex; flex-direction: column; overflow: hidden; }
#tn-nav-host { display: flex; justify-content: flex-end; padding: 6px clamp(8px, 1.5vw, 24px); }
main.wide { flex: 1; min-height: 0; overflow-y: auto; align-content: start; padding: clamp(16px, 3vw, 56px); display: grid; gap: clamp(12px, 2vw, 32px); }
h1 { margin: 0; font-size: clamp(32px, 5vw, 72px); line-height: 1.05; }
h2 { margin: 0 0 6px; font-size: 1.15em; }
.lead { margin: 0; font-size: clamp(18px, 1.6vw, 28px); color: var(--dim); }
.hero { display: grid; gap: 12px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: clamp(10px, 1.5vw, 24px); }
.cards article, .prose section { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: clamp(12px, 1.5vw, 24px); }
.cards p, .prose p { margin: 0 0 8px; }
.prose { display: grid; gap: clamp(10px, 1.5vw, 20px); max-width: 60em; }
.cta { display: inline-block; padding: 12px 28px; min-height: 44px; border-radius: 6px; background: var(--accent); color: var(--accent-ink); font-weight: 700; text-decoration: none; }
.alt { margin-left: 16px; color: var(--accent); }
.foot { margin: 0; color: var(--dim); }
a { color: var(--accent); }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
table { border-collapse: collapse; width: 100%; font-size: 0.95em; }
th, td { text-align: left; padding: 4px 8px; border-bottom: 1px solid var(--line); }
th { color: var(--dim); font-weight: 600; }

.toc { display: flex; flex-wrap: wrap; gap: 4px 16px; }
.toc a { display: inline-flex; align-items: center; min-height: 44px; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }