/* teachchat.wiki — same earthy palette as the app: moss + charcoal + warm
   cream, sunlight from above, soil below. House style: tinted backgrounds and
   full borders for callouts (no accent side-stripes). */
:root {
  --accent: #8fce9b;
  --accent-btn: #3a7d44;
  --accent-soft: #2b382c;
  --bg: #1d201b;
  --panel: #252922;
  --panel-2: #2e332a;
  --border: #414738;
  --text: #e9e4d3;
  --dim: #9d977f;
  --danger: #d4735f;
  --soil: #241c12;
  --sun: rgba(143, 206, 155, 0.07);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(1100px 500px at 50% -8%, var(--sun), transparent 65%),
    linear-gradient(to bottom, var(--bg) 0%, var(--bg) 72%, var(--soil) 100%);
  background-attachment: fixed;
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
  line-height: 1.65;
}
.skip { position: absolute; left: -999px; top: 0; background: var(--accent-btn); color: #fff; padding: 0.5rem 1rem; z-index: 99; }
.skip:focus { left: 0; }

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.65rem 1rem;
  background: rgba(29, 32, 27, 0.94);
  backdrop-filter: blur(4px);
  border-bottom: 1px solid var(--border);
}
.brand { color: var(--text); text-decoration: none; font-size: 1.05rem; white-space: nowrap; }
.brand strong { color: var(--accent); }
#search {
  flex: 1;
  max-width: 26rem;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 0.45rem 0.75rem;
  font-size: 0.95rem;
}
#search:focus { outline: 2px solid var(--accent-btn); outline-offset: -1px; }
.app-link {
  margin-left: auto;
  color: #10231a;
  background: var(--accent);
  border-radius: 8px;
  padding: 0.4rem 0.8rem;
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
}
.app-link:hover { filter: brightness(1.08); }

.results {
  position: sticky;
  top: 3.4rem;
  z-index: 19;
  margin: 0 auto;
  max-width: 34rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 0 0 10px 10px;
  padding: 0.4rem;
}
.results a { display: block; padding: 0.45rem 0.6rem; border-radius: 8px; color: var(--text); text-decoration: none; }
.results a:hover { background: var(--accent-soft); }
.results a span { display: block; color: var(--dim); font-size: 0.82rem; }
.results p { color: var(--dim); margin: 0.4rem 0.6rem; }

.shell { display: flex; gap: 2rem; max-width: 72rem; margin: 0 auto; padding: 1.5rem 1rem 4rem; }
.side {
  flex: 0 0 15rem;
  position: sticky;
  top: 4.2rem;
  align-self: flex-start;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.nav-link {
  color: var(--text);
  text-decoration: none;
  padding: 0.42rem 0.65rem;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 0.95rem;
}
.nav-link:hover { background: var(--panel); }
.nav-sec {
  margin: 0.9rem 0 0.2rem;
  padding: 0 0.65rem;
  color: var(--dim);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
/* Pixel sprites: the buddies' real box-shadow art, re-rendered as SVG at
   build time. Strip lays the life stages side by side on a soft panel. */
.sprite-strip {
  display: flex;
  align-items: flex-end;
  gap: 1.4rem;
  flex-wrap: wrap;
  margin: 1rem 0;
  padding: 1rem 1.2rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.sprite-strip figure { margin: 0; text-align: center; }
.sprite-strip svg { image-rendering: pixelated; display: block; margin: 0 auto; }
.sprite-strip figcaption { color: var(--dim); font-size: 0.8rem; margin-top: 0.35rem; }
.nav-active { background: var(--accent-soft); border-color: var(--border); color: var(--accent); font-weight: 600; }

.content { flex: 1; min-width: 0; max-width: 46rem; }
.content h1 { font-size: 1.9rem; margin: 0 0 0.75rem; }
.content h2 { margin: 2rem 0 0.5rem; padding-top: 0.5rem; border-top: 1px solid var(--border); font-size: 1.3rem; }
.content h3 { margin: 1.3rem 0 0.35rem; font-size: 1.05rem; color: var(--accent); }
.content a { color: var(--accent); }
.content code {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.08rem 0.35rem;
  font-size: 0.9em;
}
.content pre { background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 0.8rem 1rem; overflow-x: auto; }
.content pre code { background: none; border: none; padding: 0; }
.content blockquote {
  margin: 1rem 0;
  padding: 0.7rem 1rem;
  background: var(--accent-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.content blockquote p { margin: 0.25rem 0; }
.content table { border-collapse: collapse; width: 100%; margin: 1rem 0; display: block; overflow-x: auto; }
.content th, .content td { border: 1px solid var(--border); padding: 0.45rem 0.7rem; text-align: left; }
.content th { background: var(--panel); }
.content img { max-width: 100%; border-radius: 10px; }
.content ul, .content ol { padding-left: 1.4rem; }
.content li { margin: 0.25rem 0; }
.foot { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--border); color: var(--dim); font-size: 0.88rem; }
.foot a { color: var(--dim); }

@media (max-width: 820px) {
  .shell { flex-direction: column; gap: 1rem; }
  .side { position: static; flex-direction: row; flex-wrap: wrap; gap: 0.35rem; }
  .nav-link { border: 1px solid var(--border); background: var(--panel); font-size: 0.88rem; }
  .app-link { display: none; }
}