/* =============================================================
   Antarctic Metadata Catalogue – Custom Theme
   Polar palette: deep navy, glacier blue, ice frost
   ============================================================= */

/* ----- Colour tokens ----- */
:root {
  --antcat-navy:        #0d2b45;
  --antcat-blue:        #1e78b4;
  --antcat-blue-hover:  #155d8a;
  --antcat-frost:       #edf5fb;
  --antcat-ice:         #d4eaf5;
  --antcat-border:      #b0d0e4;
  --antcat-muted:       #4a6070;

  /* PyData Sphinx Theme overrides */
  --pst-color-primary:       #1e78b4;
  --pst-color-link:          #1e78b4;
  --pst-color-link-hover:    #0d2b45;
  --pst-color-secondary:     #0d2b45;
  --pst-color-accent:        #3498d8;

  /* Sphinx-design overrides (if used) */
  --sd-color-primary:        #1e78b4;
  --sd-color-primary-text:   #ffffff;
  --sd-color-secondary:      #0d2b45;
  --sd-color-secondary-text: #ffffff;
}

/* ----- Top navigation bar ----- */
.bd-header,
.navbar {
  background-color: var(--antcat-navy) !important;
  border-bottom: 2px solid var(--antcat-blue);
}

.navbar-brand,
.navbar-brand:hover,
.navbar .nav-link,
.navbar-nav .nav-link {
  color: #ffffff !important;
}

/* ----- Left sidebar ----- */
.bd-sidebar-primary {
  border-right: 1px solid var(--antcat-border);
}

/* Sidebar section headings */
.bd-sidebar-primary .sidebar-primary-item .caption-text {
  color: var(--antcat-navy);
  font-weight: 700;
  font-size: 0.75em;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Active / current nav item */
.bd-sidebar-primary .current > a,
.bd-sidebar-primary .current > a:hover {
  color: var(--antcat-navy) !important;
  font-weight: 600;
  border-left: 3px solid var(--antcat-blue);
  padding-left: 6px;
  background-color: var(--antcat-ice);
  border-radius: 0 4px 4px 0;
}

/* ----- Main headings ----- */
h1 {
  color: var(--antcat-navy);
  border-bottom: 2px solid var(--antcat-blue);
  padding-bottom: 0.35em;
  margin-bottom: 1em;
}

h2 {
  color: var(--antcat-navy);
  margin-top: 1.8em;
}

h3 {
  color: var(--antcat-blue);
}

h4, h5 {
  color: var(--antcat-muted);
}

/* ----- Links ----- */
a {
  color: var(--antcat-blue);
}
a:hover {
  color: var(--antcat-blue-hover);
}

/* ----- CTA button (used on all pages) ----- */
.antcat-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--antcat-blue);
  color: #ffffff !important;
  text-decoration: none !important;
  padding: 10px 22px;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 2px solid var(--antcat-blue);
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.1s ease;
  margin: 0.6em 0;
}
.antcat-btn:hover {
  background-color: var(--antcat-blue-hover);
  border-color: var(--antcat-blue-hover);
  color: #ffffff !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(13, 43, 69, 0.2);
}
.antcat-btn i {
  font-size: 1em;
}

/* ----- Integration external link buttons ----- */
.antcat-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: transparent;
  color: var(--antcat-blue) !important;
  text-decoration: none !important;
  padding: 7px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 2px solid var(--antcat-blue);
  transition: all 0.2s ease;
  margin: 0.4em 0;
}
.antcat-link-btn:hover {
  background-color: var(--antcat-blue);
  color: #ffffff !important;
}

/* ----- Images ----- */
.bd-article-container img:not([class*="logo"]) {
  border-radius: 6px;
  box-shadow: 0 2px 14px rgba(13, 43, 69, 0.10);
  max-width: 100%;
  margin: 0.5em auto;
  display: block;
}

/* ----- Tables ----- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2em 0;
  font-size: 0.95em;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 1px 6px rgba(13, 43, 69, 0.08);
}
thead th {
  background-color: var(--antcat-navy);
  color: #ffffff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
}
tbody tr:nth-child(even) {
  background-color: var(--antcat-frost);
}
tbody tr:hover {
  background-color: var(--antcat-ice);
  transition: background-color 0.15s ease;
}
tbody td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--antcat-border);
  vertical-align: top;
}

/* ----- Admonitions ----- */
.admonition {
  border-radius: 6px;
  border-left-width: 4px;
  margin: 1.4em 0;
  padding: 0.8em 1em;
}

/* Note — glacier blue */
div.note,
.admonition.note {
  background-color: var(--antcat-frost) !important;
  border-left-color: var(--antcat-blue) !important;
}
div.note .admonition-title,
.admonition.note .admonition-title {
  background-color: var(--antcat-ice) !important;
  color: var(--antcat-navy) !important;
  font-weight: 600;
}

/* Seealso — navy outline */
div.seealso,
.admonition.seealso {
  background-color: #f8fbfd !important;
  border-left-color: var(--antcat-navy) !important;
}
div.seealso .admonition-title,
.admonition.seealso .admonition-title {
  background-color: var(--antcat-ice) !important;
  color: var(--antcat-navy) !important;
  font-weight: 600;
}

/* Tip — teal */
div.tip,
.admonition.tip {
  background-color: #edfaf8 !important;
  border-left-color: #1aaa99 !important;
}
div.tip .admonition-title,
.admonition.tip .admonition-title {
  background-color: #c4ede9 !important;
  color: #0d4a45 !important;
}

/* ----- Code blocks ----- */
div.highlight,
div.highlight pre {
  border-radius: 6px;
}
div.highlight {
  border: 1px solid var(--antcat-border);
}

/* Inline code */
code.literal,
code {
  background-color: var(--antcat-frost);
  color: var(--antcat-navy);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.88em;
  border: 1px solid var(--antcat-border);
}

/* Don't double-style code inside code blocks */
div.highlight code {
  background-color: transparent;
  border: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
}

/* ----- Guidance / seealso footer notes ----- */
.guidance-note {
  font-size: 0.9em;
  color: var(--antcat-muted);
  border-top: 1px solid var(--antcat-border);
  margin-top: 2em;
  padding-top: 0.8em;
}

/* ----- Step-by-step numbered headings (tutorial pages) ----- */
.bd-article-container h3 {
  background-color: var(--antcat-frost);
  border-left: 4px solid var(--antcat-blue);
  padding: 6px 12px;
  border-radius: 0 4px 4px 0;
  margin-top: 1.6em;
  font-size: 1rem;
  color: var(--antcat-navy);
}

/* ----- "Quick access" landing-page grid spacing ----- */
.bd-article-container h2 + p,
.bd-article-container h2 + table {
  margin-top: 0.6em;
}

/* ----- Sphinx-design tab sets (R / Python tabs) ----- */
.sd-tab-set > label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--antcat-muted);
  border-bottom: 3px solid transparent;
  padding: 6px 14px;
}
.sd-tab-set > input:checked + label {
  color: var(--antcat-navy);
  border-bottom-color: var(--antcat-blue);
}
.sd-tab-content {
  border: 1px solid var(--antcat-border);
  border-radius: 0 6px 6px 6px;
  padding: 1em 1.2em;
}

/* ----- Footer ----- */
.bd-footer {
  border-top: 2px solid var(--antcat-border);
  background-color: var(--antcat-frost);
  color: var(--antcat-muted);
  font-size: 0.85em;
}