/*
 * Shared by the written pages (how to play, typing tips, about, contact).
 * External rather than inlined four times: these pages are read, not raced,
 * so one cached request beats four copies that drift apart.
 */
:root {
  --bg: #04070d;
  --panel: #0a1119;
  --line: #16202d;
  --line-2: #1e2c3c;
  --text: #e9eef4;
  --muted: #8d9cad;
  --muted-2: #6b7a8b;
  --cyan: #22c5e8;
  --amber: #f0b542;
  --red: #e0525c;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "Roboto Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--cyan); }
:where(a, button):focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

.shell { max-width: 900px; margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2rem); }

/* ---- Bar ---------------------------------------------------------------- */

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(4, 7, 13, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.top-inner { display: flex; align-items: center; gap: 22px; height: 62px; max-width: 1240px; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.18em;
  font-size: 15px;
}
.top nav { display: flex; gap: 20px; margin-left: auto; font-size: 14px; flex-wrap: wrap; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover { color: var(--text); }
.cta {
  padding: 9px 16px;
  border-radius: 9px;
  background: var(--amber);
  color: #21160a;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
}
@media (max-width: 720px) {
  .top nav { display: none; }
}

/* ---- Prose -------------------------------------------------------------- */

main { padding: clamp(2rem, 5vw, 3.5rem) 0 4rem; }

.eyebrow {
  display: inline-block;
  color: var(--cyan);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  margin: 0 0 14px;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(1.9rem, 5vw, 2.7rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text);
  font-weight: 800;
}
.lede { margin: 0 0 8px; font-size: 1.0625rem; max-width: 68ch; }

h2 {
  margin: 2.6rem 0 0.9rem;
  font-size: clamp(1.3rem, 3vw, 1.6rem);
  line-height: 1.2;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -0.01em;
}
h3 {
  margin: 1.8rem 0 0.5rem;
  font-size: 1.0625rem;
  color: var(--cyan);
  font-weight: 700;
}
p { margin: 0 0 1rem; max-width: 72ch; }
strong { color: var(--text); }
code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 6px;
  color: var(--cyan);
}

ul, ol { margin: 0 0 1rem; padding-left: 1.35rem; max-width: 72ch; }
li { margin-bottom: 0.5rem; }
li::marker { color: var(--cyan); }

hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }

/* ---- Tables ------------------------------------------------------------- */

.table-wrap { overflow-x: auto; margin: 0 0 1.5rem; }
table { border-collapse: collapse; width: 100%; min-width: 460px; font-size: 0.9375rem; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--cyan); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; }
td strong { color: var(--text); }

/* ---- Callout ------------------------------------------------------------ */

.note {
  margin: 1.5rem 0;
  padding: 16px 20px;
  border: 1px solid var(--line-2);
  border-left: 3px solid var(--cyan);
  border-radius: 8px;
  background: var(--panel);
  font-size: 0.9375rem;
}
.note p:last-child { margin-bottom: 0; }
.note--warn { border-left-color: var(--amber); }

/* ---- Cards -------------------------------------------------------------- */

.cards {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}
.cards li {
  margin: 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  font-size: 0.9375rem;
}
.cards b { display: block; color: var(--text); margin-bottom: 4px; }

/* ---- Play strip --------------------------------------------------------- */

.strip {
  margin: 3rem 0 0;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border: 1px solid var(--line-2);
  border-radius: 14px;
  background: var(--panel);
  text-align: center;
}
.strip h2 { margin-top: 0; }
.strip .cta { display: inline-block; margin-top: 6px; padding: 12px 24px; font-size: 15px; }

/* ---- Footer ------------------------------------------------------------- */

footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
  font-size: 0.875rem;
  color: var(--muted-2);
}
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-bottom: 12px; }
.foot-links a { color: var(--muted); text-decoration: none; }
.foot-links a:hover { color: var(--text); }

.guide-list { margin: 1.25rem 0 2rem; padding: 0; list-style: none; }

.guide-list li {
  margin: 0 0 10px;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}

.guide-list a { display: block; color: var(--text); font-weight: 600; text-decoration: none; }

.guide-list a:hover { color: var(--cyan); }

.guide-list span { display: block; margin-top: 4px; font-size: 0.9375rem; color: var(--muted); }

.foot-group { margin-bottom: 18px; }

.foot-head {
  margin: 0 0 8px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.byline {
  margin: -0.5rem 0 2rem;
  font-size: 0.8125rem;
  color: var(--muted-2);
}

.byline a { color: var(--muted); }

.byline span::before { content: '·'; margin: 0 8px; opacity: 0.5; }