:root {
  --bg: #0e1116;
  --bg2: #0b0f15;
  --panel: #161b22;
  --panel2: #1c2230;
  --line: #232b36;
  --fg: #d8e0ea;
  --dim: #8b97a8;
  --acc: #7ee0c0;
  --acc2: #8ab4ff;
  --warn: #ffcc66;
  --bad: #ff7b72;
  --good: #7ee787;
  --mono: ui-monospace, 'SF Mono', 'Cascadia Mono', Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.6 var(--sans);
}
a {
  color: var(--acc2);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
.hidden {
  display: none !important;
}

/* ---------------- hero ---------------- */
header.hero {
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(1200px 380px at 12% -30%, #1a2740 0%, transparent 70%),
    linear-gradient(180deg, #131922, #0e1116);
  padding: 34px 22px 22px;
}
.hero-wrap {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.25fr 0.9fr;
  gap: 26px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-wrap {
    grid-template-columns: 1fr;
  }
}
h1 {
  margin: 0 0 8px;
  font-size: 26px;
  letter-spacing: 0.2px;
  line-height: 1.25;
}
h1 em {
  color: var(--acc);
  font-style: normal;
}
p.lede {
  margin: 0 0 14px;
  color: #b7c2d0;
  max-width: 62ch;
}
p.lede em {
  color: var(--fg);
  font-style: normal;
}
.tagrow {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 12px;
}
.tag {
  font: 600 11.5px var(--mono);
  color: var(--acc);
  background: #183028;
  border: 1px solid #2c6350;
  border-radius: 99px;
  padding: 2px 9px;
}
.tag.b {
  color: var(--acc2);
  background: #182338;
  border-color: #33455f;
}
.tag.y {
  color: var(--warn);
  background: #302816;
  border-color: #5e4f26;
}
#hero {
  width: 100%;
  height: 170px;
  display: block;
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.heroCap {
  margin: 6px 0 0;
  font: 11.5px var(--mono);
  color: var(--dim);
  text-align: center;
}

/* ---------------- layout ---------------- */
main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 22px 90px;
}
section.block {
  margin: 26px 0 0;
}
h2.sec {
  font-size: 13px;
  font-family: var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 12px;
  font-weight: 600;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
}

/* ---------------- cards ---------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 980px) {
  .cards {
    grid-template-columns: 1fr;
  }
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  transition:
    border-color 0.15s,
    transform 0.15s,
    background 0.15s;
}
.card:hover {
  border-color: #31425c;
  transform: translateY(-2px);
  background: #171d27;
}
.card .glyph {
  font: 400 26px/1 var(--mono);
  color: var(--acc);
}
.card.b .glyph {
  color: var(--acc2);
}
.card.y .glyph {
  color: var(--warn);
}
.card h3 {
  margin: 0;
  font-size: 16.5px;
}
.card p {
  margin: 0;
  color: var(--dim);
  font-size: 13.5px;
  flex: 1;
}
.card ul {
  margin: 2px 0 0 16px;
  padding: 0;
  color: var(--dim);
  font-size: 12.5px;
}
.card .actions {
  display: flex;
  gap: 8px;
  margin-top: 6px;
  flex-wrap: wrap;
}
button,
.btn {
  background: #20304a;
  color: var(--acc2);
  border: 1px solid #33455f;
  border-radius: 7px;
  padding: 6px 12px;
  font: 600 12.5px var(--mono);
  cursor: pointer;
  display: inline-block;
}
button:hover,
.btn:hover {
  background: #28405f;
  text-decoration: none;
}
button.primary,
.btn.primary {
  background: #1d4034;
  color: var(--acc);
  border-color: #2c6350;
}
button.primary:hover,
.btn.primary:hover {
  background: #255141;
}
button.ghost {
  background: transparent;
  color: var(--dim);
  border-color: var(--line);
}
button.ghost:hover {
  background: #1a212c;
  color: var(--fg);
}
button[aria-selected='true'] {
  background: #1d4034;
  color: var(--acc);
  border-color: #2c6350;
}

/* ---------------- inline viewer ---------------- */
#viewer {
  margin-top: 14px;
  overflow: hidden;
}
.vbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
  background: var(--panel2);
  font: 12.5px var(--mono);
}
.vbar .name {
  color: var(--acc);
  font-weight: 700;
}
.vbar .path {
  color: var(--dim);
}
.vbar .sp {
  flex: 1;
}
#frame {
  width: 100%;
  height: 78vh;
  min-height: 520px;
  border: 0;
  display: block;
  background: var(--bg2);
}

/* ---------------- docs ---------------- */
.doc-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  background: var(--panel2);
  border-radius: 12px 12px 0 0;
}
.doc-bar .sp {
  flex: 1;
}
.doc-body {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 0;
  min-height: 320px;
}
@media (max-width: 900px) {
  .doc-body {
    grid-template-columns: 1fr;
  }
  #toc {
    display: none;
  }
}
#toc {
  border-right: 1px solid var(--line);
  padding: 14px 12px;
  overflow: auto;
  max-height: 78vh;
}
#toc .tt {
  font: 600 11px var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 8px;
}
#toc a {
  display: block;
  color: var(--dim);
  font-size: 12.8px;
  padding: 3px 6px;
  border-radius: 5px;
  border-left: 2px solid transparent;
  line-height: 1.35;
}
#toc a:hover {
  color: var(--fg);
  background: #1a212c;
  text-decoration: none;
}
#toc a.h3 {
  padding-left: 16px;
  font-size: 12.2px;
  opacity: 0.85;
}
#readout {
  padding: 6px 26px 34px;
  overflow-x: auto;
  max-width: 100%;
}
.status {
  padding: 26px;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 13px;
}
.status b {
  color: var(--warn);
}

/* markdown typography */
.markdown h1 {
  font-size: 23px;
  margin: 26px 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.markdown h2 {
  font-size: 19px;
  margin: 28px 0 8px;
  color: var(--acc);
}
.markdown h3 {
  font-size: 16px;
  margin: 22px 0 6px;
  color: var(--acc2);
}
.markdown h4 {
  font-size: 14.5px;
  margin: 18px 0 4px;
  color: #c3cede;
}
.markdown p {
  margin: 10px 0;
}
.markdown ul,
.markdown ol {
  margin: 10px 0 10px 22px;
  padding: 0;
}
.markdown li {
  margin: 4px 0;
}
.markdown code {
  font-family: var(--mono);
  font-size: 12.6px;
  background: #0b0f15;
  border: 1px solid #222a35;
  border-radius: 5px;
  padding: 1px 5px;
  color: var(--acc);
}
.markdown pre {
  background: var(--bg2);
  border: 1px solid #222a35;
  border-radius: 9px;
  padding: 11px 13px;
  overflow: auto;
  margin: 12px 0;
}
.markdown pre code {
  background: none;
  border: 0;
  padding: 0;
  color: #cfd8e4;
  font-size: 12.5px;
  line-height: 1.5;
}
.markdown blockquote {
  margin: 12px 0;
  padding: 6px 14px;
  border-left: 3px solid #2c6350;
  color: #b7c2d0;
  background: #131a22;
  border-radius: 0 8px 8px 0;
}
.markdown table {
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 12.6px;
  margin: 14px 0;
  display: block;
  overflow: auto;
}
.markdown th,
.markdown td {
  border: 1px solid var(--line);
  padding: 5px 9px;
}
.markdown th {
  background: #1b2231;
  color: var(--acc2);
}
.markdown hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 22px 0;
}
.markdown img {
  max-width: 100%;
}
.markdown a.anchor {
  color: var(--line);
  margin-left: 8px;
  font-size: 0.8em;
  opacity: 0;
  text-decoration: none;
}
.markdown h1:hover a.anchor,
.markdown h2:hover a.anchor,
.markdown h3:hover a.anchor {
  opacity: 1;
}
#rawView {
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--mono);
  font-size: 12.5px;
  color: #c5cfdb;
  padding: 16px 22px;
  margin: 0;
}
/* ---------------- source viewer (monaco) ---------------- */
#bootErr {
  margin: 0 0 12px;
  padding: 9px 12px;
  border: 1px solid #5e4f26;
  background: #221d10;
  color: var(--warn);
  border-radius: 9px;
  font: 12.5px var(--mono);
}
.src-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  background: var(--panel2);
  border-radius: 12px 12px 0 0;
}
.src-bar .sp {
  flex: 1;
}
#srcStatus {
  font: 11.5px var(--mono);
  color: var(--dim);
}
#srcNote {
  display: block;
  padding: 8px 14px 2px;
  font: 11.5px var(--mono);
  color: var(--dim);
}
#monacoHost {
  width: 100%;
  height: 64vh;
  min-height: 420px;
  overflow: hidden;
  background: var(--bg2);
  border-radius: 0 0 12px 12px;
}
#srcFallback {
  margin: 0;
  max-height: 64vh;
  overflow: auto;
  padding: 14px 18px;
  white-space: pre;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.5;
  color: #c5cfdb;
  background: var(--bg2);
  border-radius: 0 0 12px 12px;
}
#srcFallback.wrap {
  white-space: pre-wrap;
  word-break: break-word;
}

/* ---------------- footer ---------------- */
footer {
  border-top: 1px solid var(--line);
  background: #0b0f15;
  padding: 22px;
  color: var(--dim);
  font-size: 13px;
}
footer .fw {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: space-between;
}
footer code {
  font-family: var(--mono);
  color: var(--acc);
}
kbd {
  font: 600 11px var(--mono);
  background: var(--panel2);
  border: 1px solid #33455f;
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 1px 5px;
  color: var(--fg);
}