/* ddmo documentation theme, layered on top of Furo.
   Furo's --color-* variables already switch with light/dark mode; the --ddmo-*
   tokens below are redefined for dark mode at the bottom of this section. */

body {
  --ddmo-accent: #0f766e;
  --ddmo-accent-2: #0e7490;
  --ddmo-accent-soft: rgba(15, 118, 110, 0.08);
  --ddmo-border: rgba(15, 23, 42, 0.09);
  --ddmo-card: #ffffff;
  --ddmo-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.06);
  --ddmo-hero: linear-gradient(135deg, #f0fdfa 0%, #ecfeff 55%, #f8fafc 100%);
  --ddmo-rule: #1f2937;
  --ddmo-serif: "Latin Modern Roman", "CMU Serif", "Computer Modern Serif", "STIX Two Text", "Cambria", Georgia, serif;
}

body[data-theme="dark"] {
  --ddmo-accent: #5eead4;
  --ddmo-accent-2: #67e8f9;
  --ddmo-accent-soft: rgba(94, 234, 212, 0.08);
  --ddmo-border: rgba(226, 232, 240, 0.1);
  --ddmo-card: #1a1c1e;
  --ddmo-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
  --ddmo-hero: linear-gradient(135deg, rgba(15, 118, 110, 0.22) 0%, rgba(14, 116, 144, 0.14) 55%, transparent 100%);
  --ddmo-rule: #cbd5e1;
}

@media (prefers-color-scheme: dark) {
  body:not([data-theme="light"]) {
    --ddmo-accent: #5eead4;
    --ddmo-accent-2: #67e8f9;
    --ddmo-accent-soft: rgba(94, 234, 212, 0.08);
    --ddmo-border: rgba(226, 232, 240, 0.1);
    --ddmo-card: #1a1c1e;
    --ddmo-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
    --ddmo-hero: linear-gradient(135deg, rgba(15, 118, 110, 0.22) 0%, rgba(14, 116, 144, 0.14) 55%, transparent 100%);
    --ddmo-rule: #cbd5e1;
  }
}

/* ---------------------------------------------------------------- sidebar */

.sidebar-brand {
  flex-direction: row;
  align-items: center;
  gap: 0.6rem;
}

.sidebar-logo-container {
  margin: 0;
}

.sidebar-logo {
  width: 2.1rem;
  height: 2.1rem;
}

.sidebar-brand-text {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.sidebar-tree .caption,
.content .toctree-wrapper > p.caption {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------------------------------------------------------------- typography */

.content h1 {
  font-weight: 700;
  letter-spacing: -0.03em;
}

.content h2 {
  margin-top: 2.6rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--ddmo-border);
  font-weight: 650;
  letter-spacing: -0.02em;
}

.content h3 {
  font-weight: 600;
  letter-spacing: -0.01em;
}

.content a.reference {
  text-underline-offset: 0.18em;
}

/* ---------------------------------------------------------------- landing page */

.ddmo-hero {
  margin: 2.4rem 0 2rem;
  padding: 2.2rem 2rem 2rem;
  border: 1px solid var(--ddmo-border);
  border-radius: 20px;
  background: var(--ddmo-hero);
}

.ddmo-hero .eyebrow {
  display: inline-block;
  margin-bottom: 0.8rem;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  background: var(--ddmo-accent-soft);
  color: var(--ddmo-accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* The page's Markdown title stays in the document for accessibility but the hero replaces it visually. */
.content section > h1:has(+ .ddmo-hero) {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.ddmo-hero .hero-title {
  margin: 0 0 0.6rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 2.6rem;
  line-height: 1.1;
}

.ddmo-hero .hero-title .grad {
  background: linear-gradient(90deg, var(--ddmo-accent), var(--ddmo-accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ddmo-hero p.lead {
  max-width: 40rem;
  margin: 0 0 1.4rem;
  color: var(--color-foreground-secondary);
  font-size: 1.1rem;
  line-height: 1.6;
}

.ddmo-hero .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.ddmo-button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  border-radius: 10px;
  border: 1px solid var(--ddmo-border);
  background: var(--ddmo-card);
  color: var(--color-foreground-primary) !important;
  font-weight: 600;
  text-decoration: none !important;
  transition: transform 0.12s, box-shadow 0.12s;
}

.ddmo-button:hover {
  transform: translateY(-1px);
  box-shadow: var(--ddmo-shadow);
}

.ddmo-button.primary {
  border-color: transparent;
  background: linear-gradient(120deg, #0f766e, #0e7490);
  color: #ffffff !important;
}

.ddmo-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin: 1.2rem 0 2rem;
}

a.ddmo-card {
  display: block;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--ddmo-border);
  border-radius: 16px;
  background: var(--ddmo-card);
  color: var(--color-foreground-primary) !important;
  text-decoration: none !important;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

a.ddmo-card:hover {
  transform: translateY(-2px);
  border-color: var(--ddmo-accent);
  box-shadow: var(--ddmo-shadow);
}

.ddmo-card .icon {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  margin-bottom: 0.7rem;
  border-radius: 10px;
  background: var(--ddmo-accent-soft);
  color: var(--ddmo-accent);
  font-family: var(--ddmo-serif);
  font-size: 1.15rem;
  font-weight: 600;
}

.ddmo-card strong {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 1.02rem;
}

.ddmo-card span.desc {
  color: var(--color-foreground-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.ddmo-models {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.4rem 0 1.5rem;
}

.ddmo-models span {
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--ddmo-border);
  border-radius: 999px;
  background: var(--ddmo-card);
  font-family: var(--font-stack--monospace);
  font-size: 0.82rem;
}

/* ---------------------------------------------------------------- code, math, tables */

.content .highlight,
.content div[class*="highlight-"] pre {
  border-radius: 12px;
}

.content div[class*="highlight-"] {
  border: 1px solid var(--ddmo-border);
  border-radius: 12px;
  overflow: hidden;
}

.content div.math {
  margin: 1.2rem 0;
  padding: 0.6rem 1rem;
  border-left: 3px solid var(--ddmo-accent);
  border-radius: 0 10px 10px 0;
  background: var(--ddmo-accent-soft);
  overflow-x: auto;
}

.content table.docutils {
  border: 1px solid var(--ddmo-border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: none;
}

.content .admonition {
  border-radius: 12px;
  box-shadow: none;
  border: 1px solid var(--ddmo-border);
}

/* API reference signatures */
.content dl.py > dt {
  padding: 0.45rem 0.7rem;
  border-left: 3px solid var(--ddmo-accent);
  border-radius: 0 8px 8px 0;
  background: var(--ddmo-accent-soft);
}

/* ---------------------------------------------------------------- algorithms
   Mimics a compiled LaTeX algorithm float (algorithm + algpseudocode):
   a heavy top rule, caption, thin rule, numbered pseudocode, thin bottom rule. */

.algorithm {
  margin: 2rem 0;
  border-top: 2px solid var(--ddmo-rule);
  border-bottom: 1px solid var(--ddmo-rule);
  color: var(--color-foreground-primary);
  font-family: var(--ddmo-serif);
  font-size: 1.04rem;
  line-height: 1.6;
}

.algorithm > p:first-child {
  margin: 0;
  padding: 0.3rem 0.15rem;
  border-bottom: 1px solid var(--ddmo-rule);
  font-family: var(--ddmo-serif);
  font-size: inherit;
  text-align: left;
}

.algorithm > p:first-child .caption-number {
  margin-right: 0.3em;
  font-weight: 700;
}

.algorithm > p:first-child .headerlink {
  font-family: var(--font-stack);
}

.algorithm .alg-body {
  padding: 0.4rem 0 0.45rem;
  overflow-x: auto;
}

.algorithm .alg-line {
  display: grid;
  grid-template-columns: 1.9em minmax(0, 1fr);
  column-gap: 0.7em;
  align-items: baseline;
}

.algorithm .alg-lineno {
  color: var(--color-foreground-muted);
  font-size: 0.8em;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* Require/Ensure sit flush left with a hanging indent, as in algpseudocode. */
.algorithm .alg-header {
  display: block;
  padding-left: 4.2em;
  text-indent: -4.2em;
}

.algorithm .alg-header .alg-lineno {
  display: none;
}

.algorithm .alg-indent-1 .alg-content { margin-left: 1.5em; }
.algorithm .alg-indent-2 .alg-content { margin-left: 3em; }
.algorithm .alg-indent-3 .alg-content { margin-left: 4.5em; }
.algorithm .alg-indent-4 .alg-content { margin-left: 6em; }
.algorithm .alg-indent-5 .alg-content { margin-left: 7.5em; }
.algorithm .alg-indent-6 .alg-content { margin-left: 9em; }
.algorithm .alg-indent-7 .alg-content { margin-left: 10.5em; }
.algorithm .alg-indent-8 .alg-content { margin-left: 12em; }

.algorithm .alg-keyword {
  font-weight: 700;
}

.algorithm .alg-smallcaps {
  font-variant: small-caps;
  letter-spacing: 0.02em;
}

.algorithm .alg-comment {
  float: right;
  padding-left: 1.5em;
  color: var(--color-foreground-secondary);
}

.algorithm code.literal {
  border: none;
  background: none;
  padding: 0;
  font-size: 0.9em;
}

.algorithm mjx-container[jax="CHTML"] {
  font-size: 100% !important;
}

/* Collapsible TeX source under each algorithm */
.algorithm details.alg-source {
  border-top: 1px dashed var(--ddmo-border);
  font-family: var(--font-stack);
  font-size: 0.85rem;
}

.algorithm details.alg-source > summary {
  padding: 0.35rem 0.15rem;
  color: var(--color-foreground-muted);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.algorithm details.alg-source > summary::-webkit-details-marker {
  display: none;
}

.algorithm details.alg-source > summary::before {
  content: "▸ ";
}

.algorithm details.alg-source[open] > summary::before {
  content: "▾ ";
}

.algorithm details.alg-source > summary:hover {
  color: var(--ddmo-accent);
}

.algorithm details.alg-source div[class*="highlight-"] {
  margin: 0 0 0.8rem;
}

@media (max-width: 40em) {
  .ddmo-hero {
    padding: 1.4rem 1.1rem;
  }

  .ddmo-hero .hero-title {
    font-size: 2rem;
  }

  .algorithm {
    font-size: 0.96rem;
  }

  .algorithm .alg-comment {
    float: none;
    display: block;
    padding-left: 0;
  }
}