:root {
  --bg: #14171a;
  --paper: #1c2126;
  --ink: #ece8e0;
  --muted: #9a958c;
  --line: rgba(236, 232, 224, 0.12);
  --link: #7dcdc0;
  --mark: #d39266;
  --letter: var(--link);
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { background: var(--bg); color: var(--ink); }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  min-height: 100vh;
}
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 0.16em; }
:focus-visible { outline: 2px solid var(--mark); outline-offset: 3px; }

.wrap { width: min(920px, calc(100% - 2.4rem)); margin: 0 auto; }
.site-header { border-bottom: 1px solid var(--line); }
.site-footer {
  margin-top: 3rem;
  padding: 1.4rem 0 2.4rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}
.bar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}
.mark {
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-decoration: none;
}
.mark span { color: var(--mark); }
.nav-lang { font-size: 0.88rem; display: flex; gap: 1rem; }

.hero { padding: 2.4rem 0 0.5rem; }
.hero h1 {
  font-size: clamp(1.7rem, 3.4vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.18;
  margin: 0 0 0.75rem;
  max-width: 18ch;
}
.hero p.lead { margin: 0 0 1.6rem; max-width: 38rem; color: var(--muted); }

.pops {
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}
.pops li {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.pops b { font-size: 0.78rem; letter-spacing: 0.06em; color: var(--mark); }
.pops span { color: var(--muted); font-size: 0.9rem; }

.run {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 0 0 1.2rem;
}
.run article {
  margin: 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1rem 1.05rem 1.1rem;
}
.run h2 { font-size: 0.98rem; margin: 0 0 0.3rem; letter-spacing: -0.02em; }
.run p { margin: 0; color: var(--muted); font-size: 0.94rem; }

.gazetteer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.55rem 0 0;
}
.gazetteer a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  padding: 0.28rem 0.45rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  font-size: 0.82rem;
  text-transform: uppercase;
  text-decoration: none;
}
.gazetteer a:hover { border-color: var(--link); color: var(--link); text-decoration: none; }

.doc { padding: 2rem 0 3rem; }
.doc h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.03em;
  line-height: 1.18;
  margin: 0.3rem 0 0.7rem;
}
.kicker { color: var(--letter); margin: 0; font-size: 0.82rem; font-weight: 650; letter-spacing: 0.04em; }
.marker { font-size: 0.88rem; color: var(--muted); margin: 0 0 1.2rem; }
.prose { max-width: 42rem; }
.prose h2 { font-size: 1.02rem; margin: 1.4rem 0 0.35rem; }
.prose p { color: var(--muted); }
.hash-grid, .sibs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.7rem 0 1.5rem;
}
.hash-grid a, .sibs a {
  font-size: 0.8rem;
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.22rem 0.5rem;
  color: var(--muted);
}
.pager { display: flex; gap: 1rem; margin: 1.5rem 0; }
.faq dt { margin-top: 0.9rem; font-weight: 650; }
.faq dd { margin: 0.2rem 0 0; color: var(--muted); }

.admin { max-width: 920px; margin: 0 auto; padding: 1.6rem 1rem 3rem; }
.admin h1, .admin h2 { letter-spacing: -0.03em; }
.admin form, .admin table { width: 100%; }
.admin input, .admin button {
  font: inherit;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.45rem 0.6rem;
}
.admin button { background: var(--mark); color: #1a120c; border: 0; cursor: pointer; font-weight: 700; }
.admin table { border-collapse: collapse; margin: 1rem 0 2rem; font-size: 0.92rem; }
.admin td, .admin th { border-bottom: 1px solid var(--line); padding: 0.45rem 0.3rem; text-align: left; vertical-align: top; }
.flash { padding: 0.5rem 0; color: var(--mark); }
.row { display: grid; grid-template-columns: 1fr 2fr auto; gap: 0.5rem; margin: 0.5rem 0 1.5rem; }

.challenge {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 3rem 1rem;
}
.challenge h1 { font-size: 1.35rem; letter-spacing: -0.03em; }
.pulse {
  width: 1.6rem; height: 1.6rem; margin: 0 auto 0.9rem;
  border: 2px solid var(--line);
  border-top-color: var(--link);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .pulse { animation: none; }
}

@media (max-width: 720px) {
  .pops, .run { grid-template-columns: 1fr; }
  .hero h1 { max-width: none; }
  .row { grid-template-columns: 1fr; }
}