@font-face { font-family: Fredoka; font-weight: 600; font-display: swap; src: url("/fonts/fredoka-600.woff2") format("woff2"); }
@font-face { font-family: Fredoka; font-weight: 700; font-display: swap; src: url("/fonts/fredoka-700.woff2") format("woff2"); }
@font-face { font-family: Nunito; font-weight: 600; font-display: swap; src: url("/fonts/nunito-600.woff2") format("woff2"); }
@font-face { font-family: Nunito; font-weight: 700; font-display: swap; src: url("/fonts/nunito-700.woff2") format("woff2"); }
@font-face { font-family: "Space Mono"; font-weight: 400; font-display: swap; src: url("/fonts/space-mono-400.woff2") format("woff2"); }

:root { color-scheme: light; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.room {
  margin: 0;
  color: #2a1808;
  font-family: Nunito, "Helvetica Neue", sans-serif;
  font-weight: 600;
  line-height: 1.6;
  background: #fbe6c6;
}
.bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1rem 4vw;
  position: sticky;
  top: 0;
  z-index: 3;
  background: #fbe6c6;
  border-bottom: 2px solid #2a1808;
}
.brand {
  font-family: Fredoka, sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  color: inherit;
  text-decoration: none;
}
.bar nav { display: flex; gap: 0.7rem; flex-wrap: wrap; }
.bar nav a {
  color: #2a1808;
  text-decoration: none;
  font-family: Fredoka, sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  border: 3px solid #2a1808;
  border-radius: 999px;
  padding: 0.28rem 0.75rem;
  background: transparent;
  box-shadow: 2px 2px 0 #2a1808;
}
.bar nav a[aria-current="page"] { background: #ffce3a; }
.layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 720px);
  gap: 1.4rem;
  max-width: 1000px;
  margin: 0 auto;
  padding: 1.4rem 1.2rem 4rem;
  align-items: start;
}
.toc {
  position: sticky;
  top: 4.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.85rem 0.9rem;
  background: rgba(255, 250, 240, 0.88);
  border: 3px solid #2a1808;
  border-radius: 16px;
  box-shadow: 4px 4px 0 #2a1808;
}
.toc a { color: #6b4a26; text-decoration: none; font-size: 0.86rem; }
.toc a:hover { color: #d9731a; }
main h1 {
  font-family: Fredoka, sans-serif;
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 2.7rem);
  line-height: 1.05;
  margin: 0 0 0.35rem;
  letter-spacing: -0.02em;
}
.meta {
  color: #6b4a26;
  font-family: "Space Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  margin: 0 0 1rem;
}
.lead, .card {
  background: rgba(255, 250, 240, 0.94);
  border: 3px solid #2a1808;
  border-radius: 16px;
  box-shadow: 5px 5px 0 #2a1808;
}
.lead { padding: 0.95rem 1.1rem; margin: 0 0 1rem; }
.card { padding: 0.15rem 1.15rem 0.85rem; margin: 0 0 0.85rem; }
h2 {
  font-family: Fredoka, sans-serif;
  font-size: 1.18rem;
  margin: 0.9rem 0 0.35rem;
}
p, li { font-size: 0.98rem; }
h2 + p { margin-top: 0.2rem; }
a { color: #d9731a; }
ul { padding-left: 1.2rem; }
.zero {
  background: #fff7e8;
  border: 3px solid #2a1808;
  border-radius: 12px;
  padding: 0.7rem 0.95rem;
}
.foot {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 0.2rem;
}
@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; padding: 1rem 0.9rem 3rem; }
  .toc {
    position: sticky;
    top: 3.6rem;
    flex-direction: row;
    overflow-x: auto;
    gap: 0.75rem;
    border-radius: 12px;
  }
  .toc a { white-space: nowrap; }
}