/* Word War: Duel — minimal static site */

:root {
  --bg: #0f1116;
  --bg-elev: #171a21;
  --border: #262b36;
  --text: #e7e9ee;
  --text-dim: #9aa3b2;
  --green: #6aaa64;
  --yellow: #c9b458;
  --radius: 10px;
  --maxw: 720px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 56px 24px 80px;
}

/* ---------- Tile wordmark ---------- */

.tiles {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
}

.tile {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  font-weight: 700;
  font-size: 24px;
  letter-spacing: 0.5px;
  background: var(--bg-elev);
  border: 2px solid var(--border);
  color: var(--text);
}

.tile.g { background: var(--green); border-color: var(--green); color: #fff; }
.tile.y { background: var(--yellow); border-color: var(--yellow); color: #1a1a1a; }
.tile.sp { width: 14px; border: none; background: none; }

/* ---------- Landing ---------- */

.hero { text-align: center; padding-top: 24px; }

.hero h1 {
  font-size: 34px;
  line-height: 1.2;
  margin: 0 0 12px;
  letter-spacing: -0.4px;
}

.tagline {
  color: var(--text-dim);
  font-size: 19px;
  margin: 0 auto 36px;
  max-width: 30ch;
}

.cta {
  display: inline-block;
  background: var(--green);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 17px;
  padding: 14px 30px;
  border-radius: var(--radius);
  transition: opacity 0.15s ease;
}

.cta:hover { opacity: 0.88; }

.cta-note {
  color: var(--text-dim);
  font-size: 14px;
  margin-top: 14px;
}

/* ---------- Content pages ---------- */

.page-title {
  font-size: 30px;
  margin: 0 0 6px;
  letter-spacing: -0.3px;
}

.updated {
  color: var(--text-dim);
  font-size: 14px;
  margin: 0 0 36px;
}

h2 {
  font-size: 20px;
  margin: 40px 0 10px;
  letter-spacing: -0.2px;
}

h3 {
  font-size: 17px;
  margin: 26px 0 6px;
  color: var(--text);
}

p, li { color: var(--text); }

ul { padding-left: 22px; }

li { margin-bottom: 8px; }

a { color: var(--green); }

strong { color: #fff; }

.callout {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 24px 0;
}

.callout p:first-child { margin-top: 0; }
.callout p:last-child { margin-bottom: 0; }

/* ---------- FAQ ---------- */

.faq { margin-top: 12px; }

.faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elev);
  padding: 0 20px;
  margin-bottom: 10px;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: 16px 0;
  list-style: none;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  float: right;
  color: var(--text-dim);
  font-weight: 400;
}

.faq details[open] summary::after { content: "\2013"; }

.faq details > *:not(summary) { margin-top: 0; }
.faq details > *:last-child { margin-bottom: 18px; }

/* ---------- Nav / footer ---------- */

.back {
  display: inline-block;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 15px;
  margin-bottom: 32px;
}

.back:hover { color: var(--text); }

footer {
  border-top: 1px solid var(--border);
  margin-top: 64px;
  padding-top: 24px;
  text-align: center;
  color: var(--text-dim);
  font-size: 14px;
}

footer a {
  color: var(--text-dim);
  text-decoration: none;
  margin: 0 10px;
}

footer a:hover { color: var(--text); }

.copyright { margin-top: 14px; }

@media (max-width: 480px) {
  body { font-size: 16px; }
  .wrap { padding: 40px 20px 64px; }
  .tile { width: 38px; height: 38px; font-size: 20px; }
  .hero h1 { font-size: 28px; }
  .tagline { font-size: 17px; }
  footer a { display: inline-block; margin: 4px 8px; }
}