/* =============================================================
   sars docs — Dark earthy theme override for Material for MkDocs
   Fonts: DM Serif Display · IBM Plex Mono · Lora
   Palette: terra cotta, sand, cream on near-black
   ============================================================= */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=IBM+Plex+Mono:wght@400;500&family=Lora:ital,wght@0,400;0,500;1,400&display=swap');

/* -- Design tokens -------------------------------------------------- */
:root,
[data-md-color-scheme="slate"] {
  --md-primary-fg-color:         #c4693a;
  --md-primary-fg-color--light:  #e0855a;
  --md-primary-fg-color--dark:   #a3522a;
  --md-accent-fg-color:          #e0855a;
  --md-accent-fg-color--transparent: rgba(224,133,90,0.12);

  --md-default-bg-color:         #0f0e0c;
  --md-default-bg-color--light:  #181612;
  --md-default-bg-color--lighter:#221f1a;
  --md-default-fg-color:         #f0e8d8;
  --md-default-fg-color--light:  #d4b896;
  --md-default-fg-color--lighter:#8a7560;
  --md-default-fg-color--lightest:rgba(107,96,85,0.4);

  --md-code-bg-color:            #181612;
  --md-code-fg-color:            #d4b896;
  --md-code-hl-color:            rgba(196,105,58,0.15);
  --md-code-hl-number-color:     #a8c6e8;
  --md-code-hl-string-color:     #9fcda8;
  --md-code-hl-keyword-color:    #e0855a;
  --md-code-hl-name-color:       #d4b896;
  --md-code-hl-operator-color:   #8a7560;
  --md-code-hl-comment-color:    #6b6055;
  --md-code-hl-function-color:   #e0855a;
  --md-code-hl-constant-color:   #a8c6e8;
  --md-code-hl-special-color:    #c4693a;
  --md-code-hl-punctuation-color:#6b6055;
  --md-code-hl-generic-color:    #d4b896;

  --md-typeset-color:            #d4b896;
  --md-typeset-a-color:          #e0855a;

  --md-footer-bg-color:          #0f0e0c;
  --md-footer-bg-color--dark:    #0a0908;
  --md-footer-fg-color:          #6b6055;
  --md-footer-fg-color--light:   #8a7560;
  --md-footer-fg-color--lighter: #d4b896;

  /* Borders */
  --border: #2e2a23;
  --terra:  #c4693a;
  --terra-lt: #e0855a;
  --sand:   #d4b896;
  --cream:  #f0e8d8;
  --muted:  #6b6055;
  --bg2:    #181612;
  --bg3:    #221f1a;
}

/* -- Topographic grid background ------------------------------------ */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(196,105,58,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(196,105,58,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

/* -- Grain overlay -------------------------------------------------- */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 128px;
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

/* Ensure content sits above overlays */
.md-container,
.md-header,
.md-tabs,
.md-footer {
  position: relative;
  z-index: 1;
}

/* -- Typography ----------------------------------------------------- */
.md-typeset {
  font-family: 'Lora', Georgia, serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--sand);
}

.md-typeset h1 {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 2.2em;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--cream);
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}

.md-typeset h2 {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.6em;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--cream);
  margin-top: 2em;
  border-bottom: none;
}
.md-typeset h2::before {
  content: '\00a7';
  color: var(--terra);
  margin-right: 8px;
  font-size: 0.8em;
  opacity: 0.7;
}

.md-typeset h3 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75em;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--terra-lt);
}

.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--cream);
  letter-spacing: 0.04em;
}

.md-typeset strong {
  color: var(--cream);
  font-weight: 500;
}

/* -- Links ---------------------------------------------------------- */
.md-typeset a {
  color: var(--terra-lt);
  text-decoration: underline;
  text-decoration-color: rgba(196,105,58,0.3);
  text-underline-offset: 3px;
}
.md-typeset a:hover {
  color: var(--cream);
  text-decoration-color: var(--terra-lt);
}

/* -- Header bar ----------------------------------------------------- */
.md-header {
  background: var(--md-default-bg-color);
  border-bottom: 1px solid var(--border);
  box-shadow: none;
}

.md-header__title {
  font-family: 'DM Serif Display', Georgia, serif;
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* -- Tabs (top navigation) ------------------------------------------ */
.md-tabs {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}

/* -- Sidebar / Nav -------------------------------------------------- */
.md-sidebar {
  background: transparent;
}

.md-nav__link {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.02em;
}

.md-nav__link--active,
.md-nav__link:hover {
  color: var(--terra-lt);
}

.md-nav__item--active > .md-nav__link {
  color: var(--terra-lt);
  font-weight: 500;
}

/* -- Inline code ---------------------------------------------------- */
.md-typeset code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82em;
  background: var(--bg3);
  color: var(--terra-lt);
  padding: 2px 7px;
  border-radius: 3px;
  border: 1px solid var(--border);
}

/* -- Code blocks ---------------------------------------------------- */
.md-typeset pre {
  border: 1px solid var(--border);
  border-left: 3px solid var(--terra);
  border-radius: 4px;
}

.md-typeset pre > code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  line-height: 1.7;
  background: var(--bg2);
  border: none;
  padding: 0;
  color: var(--sand);
}

/* Highlight overrides */
.highlight .hll { background: rgba(196,105,58,0.12); }

/* -- Tables --------------------------------------------------------- */
.md-typeset table:not([class]) {
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  font-size: 14px;
}

.md-typeset table:not([class]) th {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 10px 14px;
}

.md-typeset table:not([class]) td {
  border-bottom: 1px solid var(--border);
  padding: 10px 14px;
  color: var(--sand);
}

.md-typeset table:not([class]) tr:hover td {
  background: var(--bg3);
}

/* First column (function/model names) in accent color */
.md-typeset table:not([class]) td:first-child {
  color: var(--terra-lt);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  white-space: nowrap;
}

/* -- Admonitions ---------------------------------------------------- */
.md-typeset .admonition,
.md-typeset details {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: 3px solid var(--terra);
  border-radius: 3px;
  box-shadow: none;
  font-size: 15px;
}

.md-typeset .admonition-title,
.md-typeset summary {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(196,105,58,0.08);
  border-bottom: 1px solid var(--border);
}

/* -- Blockquotes ---------------------------------------------------- */
.md-typeset blockquote {
  border-left: none;
  background: var(--bg3);
  border-radius: 2px;
  padding: 24px 32px;
  margin: 32px 0;
  position: relative;
}
.md-typeset blockquote::before {
  content: '\201C';
  position: absolute;
  top: 4px;
  left: 16px;
  font-family: 'DM Serif Display', serif;
  font-size: 64px;
  color: var(--terra);
  opacity: 0.2;
  line-height: 1;
}
.md-typeset blockquote p {
  font-family: 'DM Serif Display', serif;
  font-style: italic;
  font-size: 1.15em;
  color: var(--cream);
  line-height: 1.5;
}

/* -- Search --------------------------------------------------------- */
.md-search__input {
  font-family: 'IBM Plex Mono', monospace;
  background: var(--bg2);
  border: 1px solid var(--border);
}

.md-search-result__meta {
  color: var(--muted);
}

/* -- Footer --------------------------------------------------------- */
.md-footer {
  border-top: 1px solid var(--border);
}

.md-footer-meta {
  background: var(--md-default-bg-color);
}

/* -- Scrollbar ------------------------------------------------------ */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--md-default-bg-color);
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}

/* -- API reference (mkdocstrings) ----------------------------------- */
.doc-heading {
  font-family: 'DM Serif Display', Georgia, serif !important;
  color: var(--cream) !important;
}

.doc-signature {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--terra);
  border-radius: 4px;
  padding: 12px 16px;
}

.doc-param-details {
  border-left: 2px solid var(--border);
  padding-left: 16px;
  margin-left: 8px;
}

/* -- Selection highlight -------------------------------------------- */
::selection {
  background: rgba(196,105,58,0.3);
  color: var(--cream);
}

/* -- Permalink anchors ---------------------------------------------- */
.md-typeset .headerlink {
  color: var(--terra);
  opacity: 0.4;
}
.md-typeset .headerlink:hover {
  color: var(--terra-lt);
  opacity: 1;
}

/* -- Responsive ----------------------------------------------------- */
@media (max-width: 560px) {
  .md-typeset h1 { font-size: 1.8em; }
  .md-typeset h2 { font-size: 1.3em; }
}