/* ============================================================
   popo - PyData theme overrides
   Ported from twiga-forecast's docs so the two sites read as siblings;
   palette from popo.plotting.tokens, so the docs match popo's figures.
   Fonts: Poppins (headings) · Inter (body)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* ── Tokens ──────────────────────────────────────────────────────
   popo.plotting.tokens:
     deep teal   #107591  - primary: headings, links (5.2:1 on white)
     bright cyan #00c0bf  - accents, icons, hover
     orange      #f69a48  - the thing to notice: primary button, highlights
     charcoal    #222222  - text
   ─────────────────────────────────────────────────────────────── */
:root {
  --po-teal:         #107591;
  --po-teal-mid:     #00c0bf;
  --po-teal-light:   #dff6f6;
  --po-teal-bg:      #f1fbfb;
  --po-orange:       #f69a48;
  --po-orange-deep:  #d9741f;
  --po-charcoal:     #222222;
  --po-slate:        #525252;
  --po-border:       #bfe9e9;
  --po-surface:      #f6fafb;
  --po-white:        #ffffff;
  --po-text:         #222222;

  --pst-color-primary:           var(--po-teal);
  --pst-color-primary-highlight: var(--po-teal-mid);
  --pst-color-link:              var(--po-teal);
  --pst-color-link-hover:        var(--po-teal-mid);
  --pst-color-inline-code:       var(--po-teal);
  --pst-font-family-base:        'Inter', 'Helvetica Neue', Arial, sans-serif;
  --pst-font-family-heading:     'Poppins', 'Segoe UI', sans-serif;
  --pst-sidebar-primary-width:    195px;
  --pst-sidebar-secondary-width:  195px;
}

/* Night: popo sees in the dark, so the dark theme is a first-class one. */
html[data-theme="dark"] {
  --po-teal:       #00c0bf;
  --po-teal-mid:   #00c0bf;
  --po-teal-light: rgba(0,192,191,0.12);
  --po-teal-bg:    rgba(0,192,191,0.08);
  --po-border:     rgba(0,192,191,0.25);
  --po-surface:    #1b2329;
  --po-text:       #dbe7ec;
  --pst-color-primary:           var(--po-teal);
  --pst-color-primary-highlight: var(--po-teal-mid);
  --pst-color-link:              var(--po-teal);
  --pst-color-link-hover:        var(--po-teal-mid);
  --pst-color-background:        #161d22;
  --pst-color-on-background:     #1b2329;
}

/* ── Base ────────────────────────────────────────────────────── */
body {
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--po-slate);
}
html[data-theme="dark"] body { color: #8aabb4; }

h1, h2, h3, h4, h5 {
  font-family: 'Poppins', 'Segoe UI', sans-serif;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1 { font-size: 1.5rem; border-bottom: 3px solid var(--po-teal); padding-bottom: 0.3em; margin-bottom: 0.8em; color: var(--po-teal); }
h2 { font-size: 1.15rem; border-bottom: 1px solid var(--po-border); padding-bottom: 0.2em; margin-top: 2rem; color: var(--po-teal); }
h3 { font-size: 0.95rem; color: var(--po-teal-mid); }

a { color: var(--po-teal); }
a:hover { color: var(--po-teal-mid); }

/* ── Navbar ──────────────────────────────────────────────────── */
.bd-header {
  border-bottom: 2px solid var(--po-teal) !important;
  box-shadow: 0 1px 4px rgba(16,117,145,0.08) !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
}

/* Tighten logo */
.navbar-brand img { max-height: 36px !important; }

/* Nav links - compact, uppercase, teal on hover */
.navbar-nav .nav-item { margin: 0 1px; }

.navbar-nav .nav-link {
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  color: var(--po-charcoal) !important;
  padding: 0.55rem 0.75rem !important;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
  box-shadow: none !important;
}

html[data-theme="dark"] .navbar-nav .nav-link { color: #d8eaee !important; }

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:active,
.navbar-nav .nav-item.active > .nav-link,
.navbar-nav .current > .nav-link {
  color: var(--po-teal) !important;
  background-color: var(--po-teal-light) !important;
  box-shadow: none !important;
}

.navbar-nav .nav-link:focus,
.navbar-nav .nav-link:focus-visible {
  color: var(--po-teal) !important;
  background-color: var(--po-teal-light) !important;
  outline: 2px solid var(--po-teal) !important;
  outline-offset: 2px !important;
  box-shadow: none !important;
}

html[data-theme="dark"] .navbar-nav .nav-link:hover,
html[data-theme="dark"] .navbar-nav .nav-link:active,
html[data-theme="dark"] .navbar-nav .nav-link:focus,
html[data-theme="dark"] .navbar-nav .nav-link:focus-visible {
  background-color: var(--po-teal-bg) !important;
  color: var(--po-teal) !important;
  box-shadow: none !important;
}

/* Dropdown menu */
.dropdown-menu {
  border: 1px solid var(--po-border) !important;
  border-radius: 6px !important;
  box-shadow: 0 4px 16px rgba(16,117,145,0.12) !important;
  padding: 6px !important;
  min-width: 180px;
}

.dropdown-item {
  font-size: 0.875rem;
  font-family: 'Inter', sans-serif;
  border-radius: 4px;
  padding: 6px 12px !important;
  color: var(--po-text) !important;
}

.dropdown-item:hover {
  background-color: var(--po-teal-light) !important;
  color: var(--po-teal) !important;
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.bd-sidebar-primary {
  background-color: var(--po-surface) !important;
  border-right: 1px solid var(--po-border);
  font-size: 0.875rem;
}

.bd-sidebar-primary .nav-link {
  font-family: 'Inter', sans-serif;
  color: var(--po-text);
  border-radius: 4px;
  padding: 3px 10px;
  transition: all 0.12s;
}

.bd-sidebar-primary .nav-link:hover {
  color: var(--po-teal);
  background-color: var(--po-teal-light) !important;
}

.bd-sidebar-primary .nav-link.active {
  color: var(--po-teal) !important;
  background-color: var(--po-teal-bg) !important;
  font-weight: 700;
  border-left: 3px solid var(--po-teal);
}

.bd-sidebar-primary .caption-text {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  color: var(--po-teal) !important;
  margin-top: 1rem;
  opacity: 0.85;
}

/* ── Content ─────────────────────────────────────────────────── */
.bd-content { max-width: 900px; }

/* Hide the RST-generated h1 on the landing page - the hero section serves this role.
   Sphinx still reads it for the <title> tag and toctree label. */
.bd-article-container:has(.po-landing) h1:first-of-type,
section#popo > h1:first-of-type {
  display: none;
}

/* Landing page - centered content wrapper */
.po-landing,
section#popo {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* Override all width constraints on the landing page so the content
   can center itself with margin: 0 auto in the full viewport.
   Targets both .po-landing (from raw HTML) and section#popo
   (always present - generated by RST for the index heading). */
.bd-main .bd-content:has(.po-landing),
.bd-main:has(.po-landing) .bd-article-container,
.bd-content:has(.po-landing),
.bd-page-width:has(.po-landing),
.bd-container:has(.po-landing),
.bd-main .bd-content:has(section#popo),
.bd-main:has(section#popo) .bd-article-container,
.bd-content:has(section#popo),
.bd-page-width:has(section#popo),
.bd-container:has(section#popo) {
  max-width: none !important;
  padding: 0 !important;
  width: 100% !important;
}

.bd-article-container:has(.po-landing) .bd-article,
.bd-article:has(.po-landing),
.bd-article-container:has(section#popo) .bd-article,
.bd-article:has(section#popo) {
  max-width: none !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
  width: 100% !important;
}

/* ── Code blocks - clean card ────────────────────────────────── */
/* Style the outer notranslate wrapper so there's one visual layer */
[class*="highlight-"].notranslate {
  background-color: var(--po-surface) !important;
  border: 1px solid var(--po-border);
  border-radius: 8px;
  overflow: hidden;
  margin: 1rem 0;
  box-shadow: 0 1px 4px rgba(16,117,145,0.06);
}

html[data-theme="dark"] [class*="highlight-"].notranslate {
  background-color: #161d22 !important;
  border-color: rgba(0,191,165,0.18);
  box-shadow: none;
}

/* Inner div.highlight - transparent, no border of its own */
div.highlight {
  background-color: transparent !important;
  border: none;
  border-radius: 0;
}

/* pre - transparent, inherits everything from the outer card */
pre,
div.highlight pre {
  background-color: transparent !important;
  border: none;
  border-radius: 0;
  font-size: 0.875rem;
  margin: 0;
}

/* Inline code - covers .literal, .docutils, and plain <code> in HTML sections */
code:not(pre code) {
  background-color: var(--po-teal-bg);
  border: 1px solid var(--po-border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.87em;
  color: var(--po-teal);
  font-family: 'SFMono-Regular', 'Consolas', 'Liberation Mono', monospace;
}

/* ── Admonitions ─────────────────────────────────────────────── */
.admonition { border-radius: 6px; border-left-width: 4px; }
.admonition.note    { border-color: var(--po-teal);   background: var(--po-teal-bg); }
.admonition.tip     { border-color: #2e9e6b;           background: #f0faf4; }
.admonition.warning { border-color: #e07b39;           background: #fdf4ee; }
html[data-theme="dark"] .admonition.note    { background: var(--po-teal-bg); }
html[data-theme="dark"] .admonition.tip     { background: rgba(46,158,107,0.1); }
html[data-theme="dark"] .admonition.warning { background: rgba(224,123,57,0.1); }

.admonition .admonition-title {
  font-family: 'Poppins', sans-serif;
  font-weight: 700; font-size: 0.82rem;
  text-transform: uppercase; letter-spacing: 0.05em;
}

/* ── Tables (aligned with themed_gt / Great Tables style) ─────── */
table.docutils {
  width: 100%;
  border-collapse: collapse;
  font-family: 'Inter', 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
  font-size: 13px;
  color: #2d3748;
  border-top: 2px solid #107591;
  border-bottom: 1px solid #107591;
  border-left: none;
  border-right: none;
  border-radius: 0;
  overflow: visible;
}
html[data-theme="dark"] table.docutils { color: var(--po-text); border-color: var(--po-teal); }

table.docutils th {
  background: transparent;
  color: var(--po-charcoal);
  padding: 9px 14px;
  text-align: left;
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-weight: 700;
  font-size: 13px;
  text-transform: none;
  letter-spacing: 0;
  border-bottom: 1px solid #069fac;
}
table.docutils td {
  padding: 7px 14px;
  border-bottom: 1px solid #e8e8e8;
  font-size: 13px;
}
table.docutils tr:last-child td { border-bottom: none; }
table.docutils tr:nth-child(even) td { background: #f7fbfc; }
html[data-theme="dark"] table.docutils tr:nth-child(even) td { background: rgba(255,255,255,0.04); }

/* ── sphinx-design cards ─────────────────────────────────────── */
.sd-card {
  background: var(--po-white) !important;
  border: 1px solid var(--po-border) !important;
  border-radius: 8px;
  transition: box-shadow 0.2s, transform 0.15s, border-color 0.2s;
}
html[data-theme="dark"] .sd-card { background: var(--po-surface) !important; }
.sd-card:hover {
  box-shadow: 0 4px 18px rgba(16,117,145,0.15);
  transform: translateY(-2px);
  border-color: var(--po-teal) !important;
}
.sd-card-header {
  background: var(--po-teal) !important;
  color: #fff !important;
  font-family: 'Poppins', sans-serif; font-weight: 600;
  border-radius: 7px 7px 0 0; padding: 10px 16px;
  border-bottom: none !important;
}
.sd-card-footer a {
  color: var(--po-teal) !important; font-weight: 700;
  font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.04em;
}
.sd-badge {
  font-size: 0.72rem; font-weight: 700; padding: 2px 9px; border-radius: 12px;
  background: var(--po-teal-bg) !important; color: var(--po-teal) !important;
  border: 1px solid var(--po-border);
}

/* ── API reference ───────────────────────────────────────────── */
dl.py.class > dt, dl.py.function > dt, dl.py.method > dt {
  background: var(--po-teal-bg) !important;
  border-left: 4px solid var(--po-teal);
  border-radius: 0 4px 4px 0;
  padding: 7px 14px; font-size: 0.92rem;
}

/* ── Footer ──────────────────────────────────────────────────── */
.bd-footer { border-top: 2px solid var(--po-teal); font-size: 0.82rem; }

/* ════════════════════════════════════════════════════════════════
   LANDING PAGE
   ════════════════════════════════════════════════════════════════ */

/* Hero - two-column layout */
.po-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 3rem 0 2.5rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--po-border);
}

@media (max-width: 900px) {
  .po-hero { grid-template-columns: 1fr; }
  .po-hero-right { display: none; }
}

.po-hero-logo { height: 52px; margin-bottom: 1.2rem; display: block; }

.po-hero-tagline {
  font-family: 'Inter', sans-serif;
  font-size: 1.15rem;
  font-weight: 300;
  line-height: 1.65;
  color: var(--po-text);
  margin: 0 0 1.2rem;
}

.po-hero-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 1.5rem; }

.po-badge {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem; font-weight: 700;
  padding: 3px 10px; border-radius: 12px;
  background: var(--po-teal-bg);
  color: var(--po-teal);
  border: 1px solid var(--po-border);
  letter-spacing: 0.04em;
}

.po-hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.po-btn-primary {
  display: inline-block;
  font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 0.88rem;
  padding: 9px 22px; border-radius: 6px;
  background: var(--po-teal); color: #fff !important;
  text-decoration: none !important;
  transition: background 0.15s, transform 0.1s;
  letter-spacing: 0.02em;
}
.po-btn-primary:hover { background: var(--po-teal-mid); transform: translateY(-1px); }

.po-btn-secondary {
  display: inline-block;
  font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 0.88rem;
  padding: 8px 22px; border-radius: 6px;
  background: transparent; color: var(--po-teal) !important;
  border: 2px solid var(--po-teal);
  text-decoration: none !important;
  transition: all 0.15s;
}
.po-btn-secondary:hover {
  background: var(--po-teal-light);
  transform: translateY(-1px);
}

/* Install + code snippet on the right */
.po-hero-right { display: flex; flex-direction: column; gap: 12px; }

.po-install-box {
  background: var(--po-charcoal);
  border-radius: 8px;
  padding: 14px 18px;
  display: flex; align-items: center; gap: 14px;
}

.po-install-label {
  font-family: 'Poppins', sans-serif; font-weight: 700;
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--po-teal-mid); white-space: nowrap;
}

.po-install-code {
  margin: 0; padding: 0; background: transparent;
  border: none; border-left: none;
  font-size: 0.88rem; color: #a8d8e0;
  font-family: 'SFMono-Regular', 'Consolas', monospace;
}

.po-code-snippet {
  background: var(--po-charcoal);
  border-radius: 8px;
  padding: 16px 18px;
}

.po-code-snippet pre {
  margin: 0; padding: 0;
  background: transparent !important; border: none;
  font-size: 0.83rem; color: #cfe8ec;
  line-height: 1.65;
  font-family: 'SFMono-Regular', 'Consolas', monospace;
}

.po-code-snippet .kw { color: var(--po-teal-mid); }
.po-code-snippet .st { color: #a8d8e0; }

/* ════════════════════════════════════════════════════════════════
   TASK PANELS  (Model, Simulate, Estimate on the landing page)
   ════════════════════════════════════════════════════════════════ */

.po-tasks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin: 1rem 0 3rem;
}

@media (max-width: 900px) { .po-tasks { grid-template-columns: 1fr; } }

.po-task {
  display: flex;
  flex-direction: column;
  padding: 1rem 1.2rem 1.1rem;
  background: var(--po-white);
  border: 1px solid var(--po-border);
  border-radius: 10px;
  transition: box-shadow 0.2s, border-color 0.2s;
}

html[data-theme="dark"] .po-task { background: var(--po-surface); }

.po-task:hover {
  box-shadow: 0 4px 20px rgba(16,117,145,0.12);
  border-color: var(--po-teal-mid);
}

/* The figures are drawn on white; the frame keeps them on white in both themes,
   and gives the taller network diagram the same footprint as the two charts. */
.po-task-figure {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 210px;
  margin: 0 0 1rem;
  padding: 0.5rem;
  background: #ffffff;
  border-radius: 6px;
}

html[data-theme="dark"] .po-task-figure { border: 1px solid var(--po-border); }

.po-task-figure img { max-width: 100%; max-height: 100%; object-fit: contain; }

.po-task-title {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--po-teal);
  margin: 0 0 0.5rem;
  border: none !important;
  padding: 0 !important;
}

.po-task-body {
  font-size: 0.875rem;
  color: var(--po-slate);
  line-height: 1.65;
  margin: 0 0 0.75rem;
  flex: 1;
}

html[data-theme="dark"] .po-task-body { color: #8aabb4; }

.po-task-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--po-teal) !important;
  text-decoration: none !important;
  transition: gap 0.15s, color 0.15s;
}

.po-task-link:hover { color: var(--po-teal-mid) !important; gap: 8px; }

/* Edit on GitHub button */
.bd-header-article a.btn { border-color: var(--po-teal); color: var(--po-teal); font-size: 0.82rem; }
.bd-header-article a.btn:hover { background: var(--po-teal); color: #fff; }

/* Responsive */
@media (max-width: 768px) {
  .po-hero { padding: 2rem 0; }
}

/* ════════════════════════════════════════════════════════════════
   NAV CARDS  (section grid at the foot of the landing page)
   ════════════════════════════════════════════════════════════════ */

.po-nav-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin: 2.5rem 0;
}

@media (max-width: 960px) { .po-nav-cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .po-nav-cards { grid-template-columns: 1fr; } }

.po-nav-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.25rem 1.25rem 1.1rem;
  background: var(--po-white);
  border: 1px solid var(--po-border);
  border-radius: 10px;
  text-decoration: none !important;
  color: var(--po-text) !important;
  transition: box-shadow 0.2s, transform 0.15s, border-color 0.2s;
}

html[data-theme="dark"] .po-nav-card { background: var(--po-surface); }

.po-nav-card:hover {
  box-shadow: 0 4px 20px rgba(16,117,145,0.14);
  transform: translateY(-2px);
  border-color: var(--po-teal);
  text-decoration: none !important;
}

.po-nav-card-body { flex: 1; }

/* Button at the foot of each nav card, in popo's outline-button style. */
.po-nav-card-button {
  font-family: 'Poppins', sans-serif;
  align-self: flex-start;
  padding: 6px 14px;
  border: 1.5px solid var(--po-teal);
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--po-teal);
  transition: background 0.15s, color 0.15s;
}

.po-nav-card:hover .po-nav-card-button { background: var(--po-teal); color: #fff; }
html[data-theme="dark"] .po-nav-card:hover .po-nav-card-button { color: #161d22; }


.po-nav-card-body h3 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700; font-size: 0.97rem;
  margin: 0 0 0.35rem;
  color: var(--po-teal);
}

.po-nav-card-body p {
  font-size: 0.85rem;
  color: var(--po-slate);
  line-height: 1.55; margin: 0;
}

html[data-theme="dark"] .po-nav-card-body p { color: #8aabb4; }

/* ════════════════════════════════════════════════════════════════
   TUTORIAL GALLERY  (thumbnails from each tutorial's own figures)
   ════════════════════════════════════════════════════════════════ */

.po-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin: 1.5rem 0 3rem;
}

@media (max-width: 900px) { .po-gallery { grid-template-columns: 1fr; } }

.po-gallery-card {
  display: flex;
  flex-direction: column;
  padding: 1rem 1.2rem 1.1rem;
  border: 1px solid var(--po-border);
  border-radius: 10px;
  background: var(--po-white);
  text-decoration: none !important;
  color: var(--po-text) !important;
  transition: box-shadow 0.2s, border-color 0.2s;
}

html[data-theme="dark"] .po-gallery-card { background: var(--po-surface); }

.po-gallery-card:hover {
  box-shadow: 0 4px 20px rgba(16,117,145,0.12);
  border-color: var(--po-teal-mid);
}

/* Same frame as the landing page's task panels: figures drawn on white, at one footprint. */
.po-gallery-thumb {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 210px;
  margin: 0 0 1rem;
  padding: 0.5rem;
  background: #ffffff;
  border-radius: 6px;
}

html[data-theme="dark"] .po-gallery-thumb { border: 1px solid var(--po-border); }
html[data-theme="dark"] .po-gallery-thumb img { filter: none; }

.po-gallery-thumb img { max-width: 100%; max-height: 100%; object-fit: contain; }

.po-gallery-info { display: flex; flex-direction: column; gap: 0.35rem; }

.po-gallery-num {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--po-slate);
}

html[data-theme="dark"] .po-gallery-num { color: #8aabb4; }

.po-gallery-info h3 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  margin: 0;
  color: var(--po-teal);
  border: none;
  padding: 0;
}

.po-gallery-info p {
  font-size: 0.875rem;
  color: var(--po-slate);
  line-height: 1.65;
  margin: 0;
}

html[data-theme="dark"] .po-gallery-info p { color: #8aabb4; }

/* ════════════════════════════════════════════════════════════════
   SUBSYSTEM GRADIENT HEADERS  (new - MLOps & overview cards)
   ════════════════════════════════════════════════════════════════ */

.po-ovr-pipe  { background: linear-gradient(135deg, #107591, #069fac) !important; color: white !important; }
.po-ovr-model { background: linear-gradient(135deg, #0a6480, #107591) !important; color: white !important; }
.po-ovr-cv    { background: linear-gradient(135deg, #bf5500, #e07b39) !important; color: white !important; }
.po-ovr-met   { background: linear-gradient(135deg, #3949ab, #5c6bc0) !important; color: white !important; }
.po-ovr-conf  { background: linear-gradient(135deg, #1b5e20, #2e9e6b) !important; color: white !important; }
.po-ovr-mlops { background: linear-gradient(135deg, #880e4f, #c2185b) !important; color: white !important; }

/* ════════════════════════════════════════════════════════════════
   OVERVIEW SUBSYSTEM CARDS  - responsive grid polish
   ════════════════════════════════════════════════════════════════ */

/* Equal-height cards in every row */
.sd-row .sd-card { height: 100%; display: flex; flex-direction: column; }
.sd-row .sd-card .sd-card-body { flex: 1; }

/* Tighten card body padding on narrow columns */
@media (max-width: 768px) {
  .sd-card-body { padding: 0.9rem 1rem !important; }
  .sd-card-header { padding: 8px 12px !important; }
  .sd-card-footer { padding: 8px 12px !important; }
}

/* Ensure bullet lists inside cards don't overflow */
.sd-card-body ul {
  padding-left: 1.2rem;
  margin: 0.4rem 0 0;
}
.sd-card-body li { font-size: 0.875rem; line-height: 1.6; }

/* Footer link - always visible at the bottom */
.sd-card-footer { margin-top: auto; border-top: 1px solid var(--po-border) !important; }

/* ════════════════════════════════════════════════════════════════
   NAVBAR VERSION DROPDOWN  (Bokeh-style version indicator)
   ════════════════════════════════════════════════════════════════ */

.po-version-wrapper {
  display: flex;
  align-items: center;
}

.po-version-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--po-border);
  border-radius: 6px;
  padding: 3px 10px;
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--po-charcoal) !important;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
  white-space: nowrap;
}

.po-version-btn:hover,
.po-version-btn:focus,
.po-version-btn.show {
  border-color: var(--po-teal) !important;
  background: var(--po-teal-light) !important;
  color: var(--po-teal) !important;
  box-shadow: none !important;
}

html[data-theme="dark"] .po-version-btn {
  color: var(--po-text) !important;
  border-color: var(--po-border);
}

html[data-theme="dark"] .po-version-btn:hover,
html[data-theme="dark"] .po-version-btn.show {
  background: var(--po-teal-bg) !important;
  color: var(--po-teal) !important;
}

.po-version-label {
  font-size: 0.78rem;
}

.po-alpha-pill {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--po-teal-bg);
  color: var(--po-teal);
  border: 1px solid var(--po-border);
  border-radius: 10px;
  padding: 1px 6px;
  line-height: 1.4;
}

.po-version-btn.show .po-alpha-pill,
.po-version-btn:hover .po-alpha-pill {
  background: rgba(16,117,145,0.15);
  border-color: var(--po-teal);
}

.po-version-menu {
  min-width: 270px;
  padding: 14px 16px !important;
  border: 1px solid var(--po-border) !important;
  border-radius: 8px !important;
  box-shadow: 0 6px 24px rgba(16,117,145,0.13) !important;
  margin-top: 6px !important;
}

html[data-theme="dark"] .po-version-menu {
  background: var(--po-surface) !important;
  border-color: var(--po-border) !important;
}

.po-version-info p {
  font-size: 0.85rem;
  color: var(--po-text);
  margin: 0 0 10px;
  line-height: 1.55;
}

.po-version-changelog-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--po-teal) !important;
  text-decoration: none !important;
  letter-spacing: 0.02em;
}

.po-version-changelog-link:hover {
  color: var(--po-teal-mid) !important;
  text-decoration: underline !important;
}

/* ── Mermaid ─────────────────────────────────────────────────── */
.mermaid { text-align: center; margin: 1.5rem 0; }
.mermaid svg { max-width: 100% !important; height: auto !important; }

/* ════════════════════════════════════════════════════════════════
   NOTEBOOK PAGES  (myst-nb cell typography normalisation)
   Align font sizes and line-height with the rest of the site so
   tutorial pages look identical to regular Sphinx pages.
   ════════════════════════════════════════════════════════════════ */

/* Markdown prose inside notebook cells */
.cell .cell_input,
.cell_input .highlight,
div.cell p,
div.cell li,
div.cell blockquote {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--po-slate);
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
}

/* Headings inside notebook markdown cells - match site heading scale */
div.cell h1 { font-size: 1.5rem; }
div.cell h2 { font-size: 1.15rem; }
div.cell h3 { font-size: 0.95rem; }
div.cell h4 { font-size: 0.9rem; }

/* Plain-text stdout / stderr output - keep slightly smaller (data output) */
.cell_output .output_area pre,
.cell_output .output_text pre,
.cell_output .output_stream pre {
  font-size: 0.85rem;
  line-height: 1.5;
}

/* Rich text output (e.g. printed DataFrames, HTML repr) */
.cell_output .output_html,
.cell_output .jp-RenderedHTMLCommon {
  font-size: 0.9rem;
  line-height: 1.6;
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
}

/* Author line and any inline bold/italic in notebook prose */
div.cell p strong,
div.cell p em {
  font-size: inherit;
}

/* ════════════════════════════════════════════════════════════════
   BORROWED FROM BOKEH - brand-neutral polish
   ════════════════════════════════════════════════════════════════ */

/* Ligatures cause bad kerning in technical names - disable globally */
* { font-variant-ligatures: none; }

/* Hide the auto-generated sidebar section title - popo caption-text already
   handles section labels via .bd-sidebar-primary .caption-text */
.bd-links__title { display: none; }

/* sphinx-design card rows - add vertical breathing room between rows */
.sd-row { --sd-gutter-y: 1.5em; }

/* API reference - lighter weight signatures are easier to scan */
.class .sig,
.function .sig,
.sig .property { font-weight: 400; }

/* Optional image border class for screenshots in notebooks/guides.
   Shadow uses popo teal tint instead of Bokeh's neutral grey. */
img.image-border {
  border: 1px solid var(--po-border);
  margin-bottom: 1.15rem;
  border-radius: 4px;
  box-shadow: 1px 2px 6px rgba(16,117,145,0.12);
}

/* ════════════════════════════════════════════════════════════════
   PANDAS DATAFRAME  (notebook output tables)
   Adapted from Bokeh/nbsphinx - colors remapped to popo tokens.
   ════════════════════════════════════════════════════════════════ */

.dataframe {
  max-width: 100%;
  display: block;
  overflow-x: auto;
  white-space: nowrap;
}

table.dataframe {
  border: none !important;
  border-collapse: collapse;
  border-spacing: 0;
  border-top: 2px solid #107591 !important;
  border-bottom: 1px solid #107591 !important;
  font-family: 'Inter', 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
  font-size: 13px;
  color: #2d3748;
  width: 100%;
}

table.dataframe thead {
  border-bottom: 1px solid #069fac;
  vertical-align: bottom;
}

table.dataframe tr,
table.dataframe th,
table.dataframe td {
  text-align: right;
  vertical-align: middle;
  padding: 7px 14px;
  line-height: normal;
  white-space: normal;
  max-width: none;
  border: none;
}

table.dataframe th {
  background: transparent;
  color: var(--po-charcoal);
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-weight: 700;
  font-size: 13px;
  text-transform: none;
  letter-spacing: 0;
}

table.dataframe tbody tr:nth-child(even) {
  background: #f7fbfc;
}

table.dataframe tbody tr:nth-child(odd) {
  background: #ffffff;
}

table.dataframe tbody tr:hover {
  background: #e8f5f8;
}

table.dataframe tbody td {
  border-bottom: 1px solid #e8e8e8;
}

table.dataframe tbody tr:last-child td {
  border-bottom: none;
}

html[data-theme="dark"] table.dataframe {
  color: var(--po-text);
  border-top-color: var(--po-teal) !important;
  border-bottom-color: var(--po-teal) !important;
}

html[data-theme="dark"] table.dataframe th {
  background: #0a5f75;
}

html[data-theme="dark"] table.dataframe tbody tr:nth-child(even) {
  background: rgba(255,255,255,0.04);
}

html[data-theme="dark"] table.dataframe tbody tr:nth-child(odd) {
  background: transparent;
}

html[data-theme="dark"] table.dataframe tbody tr:hover {
  background: var(--po-teal-bg);
}

/* Header rows follow popo.plotting.tables.themed_gt: dark text on white under a teal rule. */
html[data-theme="dark"] table.docutils th,
html[data-theme="dark"] .output_area table.dataframe th,
html[data-theme="dark"] div.cell_output table th { color: var(--po-text); }

/* ════════════════════════════════════════════════════════════════
   popo additions
   ════════════════════════════════════════════════════════════════ */

/* The hero logo is a mark-and-wordmark lockup, wider than twiga's. */
.po-hero-logo { height: 64px; width: auto; }

/* The primary action is popo's orange: the thing to notice. */
.po-btn-primary { background: var(--po-orange); }
.po-btn-primary:hover { background: var(--po-orange-deep); }

/* Hero code snippet: keywords, strings and comments. */
.po-code-snippet .k { color: var(--po-teal-mid); font-weight: 600; }
.po-code-snippet .s { color: #ffc98f; }
.po-code-snippet .c { color: #8a9ba3; font-style: italic; }

/* Section headings on the landing page. */
.po-section-title {
  font-family: 'Poppins', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--po-teal);
  margin: 0 0 0.4rem;
}

/* Overview figure: the full content width, aligned with the panels above. It draws its
   own day and night cards, so it has no frame; the white backing keeps the figure's
   margins white in dark mode. */
.po-overview {
  margin: 0.8rem 0 1.6rem;
  border-radius: 12px;
  overflow: hidden;
  background: #ffffff;
}
.po-overview img { display: block; width: 100%; height: auto; }

/* Companion strip: a quiet band linking to twiga. */
.po-companion {
  margin: 2.4rem 0 1rem;
  padding: 1rem 1.3rem;
  border-left: 4px solid var(--po-orange);
  background: var(--po-surface);
  border-radius: 6px;
  color: var(--po-slate);
}
.po-companion p { margin: 0; }
html[data-theme="dark"] .po-companion { color: var(--po-text); }

/* Narrow screens: let the hero's columns shrink and scroll long code inside its card,
   instead of widening the whole page. */
.po-hero > * { min-width: 0; }
.po-code-snippet pre { overflow-x: auto; }
.po-install-box { overflow-x: auto; }
.po-install-code { white-space: nowrap; }

/* The overview figure carries its own day and night halves, and the panel figures sit on
   their own white frame; keep both undimmed in dark mode. */
html[data-theme="dark"] .po-overview img,
html[data-theme="dark"] .po-task-figure img { filter: none; }