:root {
  --cl-accent: #3257d6;
  --cl-accent-strong: #2145c7;
  --cl-accent-soft: rgba(50, 87, 214, 0.09);
  --cl-ink: #111318;
  --cl-muted: #5f6673;
  --cl-line: rgba(17, 19, 24, 0.12);
  --cl-surface: #ffffff;
  --cl-surface-soft: #f6f7f9;
  --cl-code: #f2f4f8;
  --cl-shadow: 0 16px 42px rgba(20, 28, 55, 0.08);
}

[data-md-color-scheme="slate"] {
  --cl-accent: #8da7ff;
  --cl-accent-strong: #b4c4ff;
  --cl-accent-soft: rgba(141, 167, 255, 0.12);
  --cl-ink: #f4f6fb;
  --cl-muted: #adb5c5;
  --cl-line: rgba(255, 255, 255, 0.13);
  --cl-surface: #151821;
  --cl-surface-soft: #1b1f2a;
  --cl-code: #11141c;
  --cl-shadow: 0 20px 50px rgba(0, 0, 0, 0.22);
}

[data-md-color-primary="custom"] {
  --md-primary-fg-color: var(--cl-surface);
  --md-primary-bg-color: var(--cl-ink);
}

[data-md-color-accent="custom"] {
  --md-accent-fg-color: var(--cl-accent);
}

.md-typeset {
  color: var(--cl-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-size: 0.82rem;
  line-height: 1.72;
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3 {
  color: var(--cl-ink);
  font-weight: 650;
  letter-spacing: -0.025em;
}

.md-typeset h1 {
  font-size: clamp(2.2rem, 5vw, 4.25rem);
  line-height: 1.02;
  margin-bottom: 1rem;
}

.md-typeset h2 { margin-top: 2.8rem; }
.md-grid { max-width: 78rem; }
.md-content__inner { max-width: 52rem; margin-left: auto; margin-right: auto; }
.md-content__inner > p,
.md-content__inner > ul,
.md-content__inner > ol { max-width: 46rem; }
.md-typeset a { color: var(--cl-accent-strong); }
.md-typeset code { border-radius: 0.32rem; }
.md-typeset pre > code { background: var(--cl-code); }

.cl-hero {
  max-width: 58rem;
  padding: clamp(2.5rem, 8vw, 6.8rem) 0 clamp(2rem, 5vw, 4.2rem);
}

.cl-eyebrow,
.cl-kicker {
  color: var(--cl-accent-strong);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.cl-hero h1 { max-width: 11ch; margin-top: 0.65rem; }

.cl-lede {
  max-width: 44rem !important;
  color: var(--cl-muted);
  font-size: clamp(1.04rem, 2.3vw, 1.38rem);
  line-height: 1.55;
  letter-spacing: -0.012em;
}

.cl-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.72rem;
  margin-top: 1.8rem;
}

.cl-actions .md-button {
  border-radius: 999px;
  border-color: var(--cl-line);
  padding: 0.62rem 1.05rem;
}

.cl-actions .md-button--primary {
  background: var(--cl-ink);
  border-color: var(--cl-ink);
  color: var(--cl-surface);
}

.cl-actions .md-button:hover,
.cl-actions .md-button:focus-visible {
  border-color: var(--cl-accent);
  transform: translateY(-1px);
}

.cl-proof {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0 0 4rem;
  border-top: 1px solid var(--cl-line);
  border-bottom: 1px solid var(--cl-line);
}

.cl-proof > div {
  min-width: 0;
  padding: 1.1rem 1rem 1.15rem 0;
}

.cl-proof > div + div {
  padding-left: 1rem;
  border-left: 1px solid var(--cl-line);
}

.cl-proof strong,
.cl-proof span { display: block; }
.cl-proof strong { color: var(--cl-ink); font-size: 0.82rem; }
.cl-proof span { margin-top: 0.28rem; color: var(--cl-muted); font-size: 0.68rem; line-height: 1.45; }

.cl-equation {
  max-width: 46rem;
  margin: 1.7rem 0 3rem;
  padding: 0.25rem;
  border: 1px solid var(--cl-line);
  border-radius: 1rem;
  background: var(--cl-surface-soft);
}

.cl-equation pre { margin: 0; box-shadow: none; }

.cl-path-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 2rem 0 4rem;
}

.cl-path-card {
  display: block;
  min-height: 12rem;
  padding: 1.25rem;
  color: var(--cl-ink) !important;
  border: 1px solid var(--cl-line);
  border-radius: 1rem;
  background: var(--cl-surface);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.02);
  transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

.cl-path-card:hover,
.cl-path-card:focus-visible {
  border-color: var(--cl-accent);
  box-shadow: var(--cl-shadow);
  transform: translateY(-2px);
}

.cl-path-card strong {
  display: block;
  margin-top: 0.65rem;
  font-size: 1.02rem;
  letter-spacing: -0.015em;
}

.cl-path-card p {
  margin: 0.65rem 0 0;
  color: var(--cl-muted);
  font-size: 0.76rem;
  line-height: 1.58;
}

.cl-boundary {
  max-width: 48rem;
  margin: 3.2rem 0;
  padding: 1.35rem 1.5rem;
  border-left: 3px solid var(--cl-accent);
  border-radius: 0.2rem 0.9rem 0.9rem 0.2rem;
  background: var(--cl-accent-soft);
}

.cl-boundary h3 { margin-top: 0; }
.cl-inline-link { font-weight: 650; }

.mermaid {
  margin: 1.8rem 0 2.4rem;
  padding: 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--cl-line);
  border-radius: 1rem;
  background: var(--cl-surface-soft);
}

.md-typeset table:not([class]) {
  border: 1px solid var(--cl-line);
  border-radius: 0.7rem;
}

*:focus-visible {
  outline: 3px solid var(--cl-accent);
  outline-offset: 3px;
}

@media (max-width: 60rem) {
  .cl-proof { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cl-proof > div:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid var(--cl-line); }
  .cl-proof > div:nth-child(4) { border-top: 1px solid var(--cl-line); }
  .cl-path-grid { grid-template-columns: 1fr; }
  .cl-path-card { min-height: 0; }
}

@media (max-width: 38rem) {
  .cl-hero { padding-top: 2.2rem; }
  .cl-proof { grid-template-columns: 1fr; }
  .cl-proof > div,
  .cl-proof > div + div,
  .cl-proof > div:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid var(--cl-line); }
  .cl-proof > div:first-child { border-top: 0; }
  .cl-actions { align-items: stretch; flex-direction: column; }
  .cl-actions .md-button { text-align: center; }
}