/* ARBE λ* Whitepaper Plugin — frontend styles. Scoped, no external dependencies. */
.arbe-lambda-whitepaper {
  --arbe-bg: #f7f8fb;
  --arbe-ink: #111827;
  --arbe-muted: #5b6472;
  --arbe-line: #d8dee9;
  --arbe-panel: #ffffff;
  --arbe-accent: #1f4fd8;
  --arbe-accent-dark: #183fae;
  --arbe-soft: #eef3ff;
  --arbe-code: #101828;
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(18px, 2.5vw, 34px);
  color: var(--arbe-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.62;
  background: var(--arbe-bg);
  border-radius: 24px;
  box-sizing: border-box;
}
.arbe-lambda-whitepaper * { box-sizing: border-box; }
.arbe-lambda-whitepaper a { color: var(--arbe-accent); }
.arbe-lambda-whitepaper .arbe-hero {
  background: linear-gradient(135deg, #ffffff 0%, #eef3ff 100%);
  border: 1px solid var(--arbe-line);
  border-radius: 22px;
  padding: clamp(24px, 4vw, 52px);
  margin-bottom: 24px;
  box-shadow: 0 12px 34px rgba(17, 24, 39, 0.08);
}
.arbe-lambda-whitepaper .arbe-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--arbe-line);
  color: var(--arbe-accent-dark);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.arbe-lambda-whitepaper h1,
.arbe-lambda-whitepaper h2,
.arbe-lambda-whitepaper h3 {
  color: var(--arbe-ink);
  line-height: 1.18;
  margin: 1.2em 0 0.5em;
}
.arbe-lambda-whitepaper h1 {
  font-size: clamp(2.1rem, 6vw, 4.6rem);
  margin: 0.35em 0 0.1em;
  letter-spacing: -0.05em;
}
.arbe-lambda-whitepaper .arbe-subtitle {
  font-size: clamp(1.15rem, 2.5vw, 1.65rem);
  color: var(--arbe-muted);
  margin: 0 0 22px;
  max-width: 840px;
}
.arbe-lambda-whitepaper .arbe-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
  margin-top: 26px;
}
.arbe-lambda-whitepaper .arbe-meta-card {
  background: rgba(255,255,255,0.78);
  border: 1px solid var(--arbe-line);
  border-radius: 16px;
  padding: 14px 16px;
}
.arbe-lambda-whitepaper .arbe-label {
  display: block;
  color: var(--arbe-muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 3px;
}
.arbe-lambda-whitepaper .arbe-value { font-weight: 750; }
.arbe-lambda-whitepaper .arbe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.arbe-lambda-whitepaper .arbe-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--arbe-accent);
  text-decoration: none;
  font-weight: 750;
  background: var(--arbe-accent);
  color: #fff !important;
}
.arbe-lambda-whitepaper .arbe-button:hover { background: var(--arbe-accent-dark); color: #fff !important; }
.arbe-lambda-whitepaper .arbe-button-secondary {
  background: #fff;
  color: var(--arbe-accent-dark) !important;
  border-color: var(--arbe-line);
}
.arbe-lambda-whitepaper .arbe-button-secondary:hover { background: var(--arbe-soft); color: var(--arbe-accent-dark) !important; }
.arbe-lambda-whitepaper .arbe-card {
  background: var(--arbe-panel);
  border: 1px solid var(--arbe-line);
  border-radius: 20px;
  padding: clamp(20px, 3vw, 34px);
  margin: 20px 0;
  box-shadow: 0 6px 18px rgba(17, 24, 39, 0.05);
}
.arbe-lambda-whitepaper .arbe-card h2 { margin-top: 0; font-size: clamp(1.35rem, 2.6vw, 2.1rem); }
.arbe-lambda-whitepaper .arbe-card h3 { font-size: 1.2rem; }
.arbe-lambda-whitepaper .arbe-lead { font-size: 1.1rem; color: #263142; }
.arbe-lambda-whitepaper .arbe-statement,
.arbe-lambda-whitepaper blockquote {
  margin: 20px 0;
  padding: 18px 20px;
  border-left: 5px solid var(--arbe-accent);
  background: var(--arbe-soft);
  border-radius: 14px;
  font-weight: 650;
}
.arbe-lambda-whitepaper .arbe-formula,
.arbe-lambda-whitepaper pre {
  display: block;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--arbe-code);
  color: #f8fafc;
  border-radius: 16px;
  padding: 16px 18px;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.95rem;
  line-height: 1.55;
}
.arbe-lambda-whitepaper code {
  background: rgba(31, 79, 216, 0.10);
  color: var(--arbe-accent-dark);
  border-radius: 6px;
  padding: 0.08em 0.32em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
}
.arbe-lambda-whitepaper .arbe-toc {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 8px 18px;
  padding-left: 0;
  list-style: none;
}
.arbe-lambda-whitepaper .arbe-toc li { margin: 0; }
.arbe-lambda-whitepaper .arbe-toc a {
  display: block;
  padding: 9px 10px;
  border-radius: 10px;
  text-decoration: none;
  background: #fff;
  border: 1px solid var(--arbe-line);
}
.arbe-lambda-whitepaper .arbe-toc a:hover { background: var(--arbe-soft); }
.arbe-lambda-whitepaper .arbe-table-wrap { overflow-x: auto; }
.arbe-lambda-whitepaper table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  background: #fff;
}
.arbe-lambda-whitepaper th,
.arbe-lambda-whitepaper td {
  border: 1px solid var(--arbe-line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
.arbe-lambda-whitepaper th { background: var(--arbe-soft); font-weight: 800; }
.arbe-lambda-whitepaper .arbe-footer {
  color: var(--arbe-muted);
  font-size: 0.92rem;
  text-align: center;
  padding: 22px 8px 4px;
}
@media print {
  .arbe-lambda-whitepaper { background: #fff; padding: 0; max-width: 100%; border-radius: 0; }
  .arbe-lambda-whitepaper .arbe-card, .arbe-lambda-whitepaper .arbe-hero { box-shadow: none; break-inside: avoid; }
  .arbe-lambda-whitepaper .arbe-actions { display: none; }
}