:root {
  --bg: #f3efe6;
  --bg-soft: #faf7ef;
  --panel: #fffaf1;
  --panel-soft: #f1eadc;
  --text: #243041;
  --muted: #647084;
  --accent: #2f6f73;
  --accent-2: #8a6f35;
  --border: rgba(64, 52, 36, .14);
  --paper: #fffdf8;
  --ink: #182033;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 300px 1fr;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #e4dccb, var(--bg) 46%);
  color: var(--text);
}
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 28px 20px;
  border-right: 1px solid var(--border);
  background: rgba(250, 247, 239, .9);
  backdrop-filter: blur(16px);
  overflow: auto;
}
.brand h1 { margin: 6px 0 28px; font-size: 27px; line-height: 1; }
.eyebrow { color: var(--accent); text-transform: uppercase; font-size: 12px; letter-spacing: .12em; font-weight: 800; }
.select-label { display: block; color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.language-label { margin-top: 16px; }
select, button, input[type="range"] {
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  background: var(--panel-soft);
  padding: 11px 12px;
  font: inherit;
}
select, .status-card button { width: 100%; }
button { cursor: pointer; background: linear-gradient(135deg, #2f6f73, #5f8f7a); color: #fffdf8; font-weight: 800; }
nav { margin-top: 24px; display: grid; gap: 8px; }
nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid transparent;
}
nav a:hover, nav a.active { color: var(--text); background: var(--panel-soft); border-color: var(--border); }
main { padding: 34px; max-width: 1280px; width: 100%; }
.hero, .panel, .artifact {
  background: rgba(255, 250, 241, .92);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 18px 56px rgba(78, 65, 43, .12);
}
.hero { display: flex; justify-content: space-between; gap: 20px; padding: 30px; margin-bottom: 22px; }
.hero h2 { margin: 8px 0 10px; font-size: clamp(32px, 5vw, 58px); letter-spacing: -.04em; }
.hero p { color: var(--muted); max-width: 760px; line-height: 1.55; }
.status-card { min-width: 190px; display: grid; align-content: center; gap: 12px; color: var(--muted); }
.panel { padding: 24px; margin-bottom: 22px; }
.panel-heading h3 { margin: 0 0 4px; font-size: 24px; }
.panel-heading p { margin: 0 0 18px; color: var(--muted); }
.diagram-heading { display: flex; align-items: start; justify-content: space-between; gap: 18px; }
.zoom-controls { display: flex; align-items: center; gap: 8px; flex-wrap: nowrap; min-width: min(420px, 100%); }
.zoom-controls button { width: auto; min-width: 44px; padding: 9px 12px; }
.zoom-controls input[type="range"] { flex: 1; min-width: 140px; padding: 0; accent-color: var(--accent); }
.diagram-wrap {
  overflow: auto;
  background: #fffdf8;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  max-height: 78vh;
}
.diagram-content { display: grid; gap: 18px; }
.diagram-content.bilingual-grid { align-items: start; }
.mermaid {
  min-width: 920px;
  margin: 0;
  display: flex;
  justify-content: center;
  transform: scale(var(--diagram-zoom, 1));
  transform-origin: top left;
  width: max-content;
}
.mermaid svg { max-width: none; height: auto; }
.score-bars { display: grid; gap: 12px; }
.score-row { display: grid; grid-template-columns: minmax(180px, 330px) 1fr 44px; gap: 12px; align-items: center; }
.score-label { color: var(--text); font-weight: 700; font-size: 14px; }
.track { height: 14px; background: rgba(47, 111, 115, .13); border-radius: 99px; overflow: hidden; }
.fill { height: 100%; background: linear-gradient(90deg, #c39a4a, #2f6f73); border-radius: inherit; }
.content { display: grid; gap: 22px; }
.artifact { padding: 26px 30px; scroll-margin-top: 28px; }
.artifact h2 { margin-top: 0; color: var(--accent); }
.markdown { color: #314158; line-height: 1.68; }
.bilingual-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.language-panel { border: 1px solid var(--border); border-radius: 16px; padding: 16px; background: rgba(250, 247, 239, .58); min-width: 0; }
.language-panel > h3 { margin: 0 0 12px; color: var(--accent); font-size: 15px; text-transform: uppercase; letter-spacing: .06em; }
.markdown h1, .markdown h2, .markdown h3 { color: #1d2a3a; line-height: 1.18; margin-top: 1.4em; }
.markdown h1:first-child, .markdown h2:first-child, .markdown h3:first-child { margin-top: 0; }
.markdown p, .markdown ul, .markdown ol { max-width: 920px; }
.markdown strong { color: #182033; }
.markdown code { color: #265f63; background: rgba(47,111,115,.09); padding: 2px 5px; border-radius: 5px; }
.markdown pre { overflow: auto; background: #f1eadc; border: 1px solid var(--border); border-radius: 12px; padding: 14px; }
.gap-card { max-width: 920px; background: var(--bg-soft); border: 1px solid var(--border); border-radius: 16px; padding: 16px 18px; margin: 14px 0; }
.gap-card h3 { margin: 0 0 10px; color: var(--accent); }
.gap-card dl { display: grid; grid-template-columns: 190px 1fr; gap: 8px 14px; margin: 0; }
.gap-card dt { color: var(--muted); font-weight: 800; }
.gap-card dd { margin: 0; }
.table-wrap { overflow-x: auto; margin: 18px 0; border: 1px solid var(--border); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; min-width: 700px; }
th, td { padding: 11px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { text-align: left; color: #182033; background: rgba(47,111,115,.08); }
td { color: #314158; }
.hidden { display: none; }
@media (max-width: 860px) {
  body { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; }
  main { padding: 18px; }
  .hero, .diagram-heading { flex-direction: column; }
  .bilingual-grid { grid-template-columns: 1fr; }
  .zoom-controls { width: 100%; }
  .score-row { grid-template-columns: 1fr; }
}
@media print {
  body { display: block; background: white; color: var(--ink); }
  .sidebar, button, .zoom-controls { display: none; }
  main { max-width: none; padding: 0; }
  .hero, .panel, .artifact { box-shadow: none; background: white; color: var(--ink); border-color: #d8dee9; break-inside: avoid; }
  .markdown, .hero p, td { color: var(--ink); }
  .markdown h1, .markdown h2, .markdown h3, .artifact h2 { color: #0f172a; }
  .diagram-wrap { background: white; max-height: none; }
  .bilingual-grid { grid-template-columns: 1fr; }
  .mermaid { min-width: 0; transform: none; }
}