/*
  TrueSKY custom theming
  - Provides coordinated light and dark themes
  - Overrides many Material defaults so the site looks bespoke
*/

/* Base typography tokens */
:root {
  --md-text-font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --md-code-font: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

@import url("https://fonts.googleapis.com/css2?family=Material+Symbols+Rounded:FILL@0..1&GRAD@-25..0&opsz@20..48&display=block");

/* Light theme (Material scheme: default) */
:root,
[data-md-color-scheme="default"] {
  /* Palette */
  --ts-bg: #f3f4fb;
  --ts-bg-alt: #e6e8f4;
  --ts-surface: #ffffff;
  --ts-accent: #2160ff;
  --ts-accent-soft: #4c86ff;
  --ts-accent-muted: #123b9a;
  --ts-text-main: #111322;
  --ts-text-muted: #555b7a;
  --ts-border-subtle: #d4d7ec;

  --md-default-bg-color: var(--ts-bg);
  --md-default-fg-color: var(--ts-text-main);
}

/* Dark theme (Material scheme: slate) */
[data-md-color-scheme="slate"] {
  --ts-bg: #060711;
  --ts-bg-alt: #0e101c;
  --ts-surface: #141726;
  --ts-accent: #6dd5ff;
  :root,
  [data-md-color-scheme="default"] {
    /* Refined light palette */
    --ts-bg: #f5f7fc;
    --ts-bg-alt: #eef1f8;
    --ts-surface: #ffffff;
    --ts-accent: #2c82e8;
    --ts-accent-soft: #5aa5f1;
    --ts-accent-muted: #0f4a99;
    --ts-text-main: #182033;
    --ts-text-muted: #626c85;
    --ts-border-subtle: #d6dbe7;
    --ts-shadow-color: 26 36 55;

    --md-default-bg-color: var(--ts-bg);
    --md-default-fg-color: var(--ts-text-main);
  }
  --ts-accent-soft: #2a9bd8;
  --ts-accent-muted: #b2e6ff;
  --ts-text-main: #f4f6ff;
  --ts-text-muted: #a5afc9;
  --ts-border-subtle: #252a3a;
  /* Base body styles (dark scheme keeps previous radial gradient) */
  body {
    color: var(--ts-text-main);
    transition: background-color .3s ease, color .3s ease;
  }

  /* Light scheme: simplify background (remove busy radial gradient) */
  [data-md-color-scheme="default"] body {
    background: linear-gradient(180deg, var(--ts-bg) 0%, var(--ts-bg-alt) 75%);
  }

  /* Optional subtle top highlight for light scheme */
  [data-md-color-scheme="default"] body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(circle at 50% -10%, rgba(255,255,255,0.65) 0%, rgba(255,255,255,0.15) 40%, transparent 70%);
    mix-blend-mode: overlay;
    opacity: .35;
  }

  --md-default-bg-color: var(--ts-bg);
  --md-default-fg-color: var(--ts-text-main);
}

/* Global page background + text */
  .md-main__inner {
    background-color: var(--ts-surface);
    box-shadow: 0 10px 28px -8px rgba(var(--ts-shadow-color) / 0.25), 0 2px 8px -2px rgba(var(--ts-shadow-color) / 0.18);
    border-radius: 18px;
    border: 1px solid var(--ts-border-subtle);
  }
.md-grid {
  /* max-width: 1100px; */
  max-width: 75%;
}

body {
  .md-header {
    box-shadow: 0 2px 8px -2px rgba(var(--ts-shadow-color) / 0.25);
    border-bottom: 1px solid var(--ts-border-subtle);
  }
  color: var(--ts-text-main);
  transition: background-color .3s ease, color .3s ease;
}
  .md-sidebar--primary {
    border-right: 1px solid var(--ts-border-subtle);
  }

[dir=ltr] .md-content {
  background-color: transparent;
}

  .md-typeset code {
    background-color: #f1f4fa;
    border-radius: 4px;
    border: 1px solid #d3dae6;
  }
.md-main__inner {
  background-color: color-mix(in srgb, var(--ts-surface) 88%, transparent);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.18);
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--ts-border-subtle) 80%, transparent);
  .md-typeset pre > code {
    background: linear-gradient(135deg, #f9fafc 0%, #eef2f8 55%, #e6ebf3 100%);
    border-radius: 10px;
    border: 1px solid #d0d7e3;
  }
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3 {
  letter-spacing: 0.03em;
  text-transform: uppercase;
  .md-typeset .admonition,
  .md-typeset details {
    border-radius: 10px;
    border-width: 1px;
    border-style: solid;
    background-color: #f3f6fb;
    border-color: #ccd3df;
    box-shadow: 0 2px 6px -2px rgba(var(--ts-shadow-color) / 0.25);
  }
}

.md-typeset h1 {
  .md-typeset table:not([class]) thead {
    background-color: #eef2f7;
  }
  font-weight: 650;
  font-size: 1.9rem;
}

.md-typeset h2 {
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  padding-bottom: 0.3rem;
}

/* Links & accents */
  .md-nav__link--active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.35rem;
    bottom: 0.35rem;
    width: 3px;
    border-radius: 999px;
    background: linear-gradient(180deg, var(--ts-accent) 0, var(--ts-accent-soft) 90%);
  }
.md-typeset a,
.md-nav__link {
  color: var(--ts-accent);
}
  .md-footer {
    background: linear-gradient(180deg, #f0f3f9 0, #e6eaf2 85%);
    border-top: 1px solid var(--ts-border-subtle);
  }

.md-typeset a:hover,
.md-nav__link:hover {

  /* Light theme specific heading adjustments */
  [data-md-color-scheme="default"] .md-typeset h1,
  [data-md-color-scheme="default"] .md-typeset h2,
  [data-md-color-scheme="default"] .md-typeset h3 {
    text-transform: none;
    letter-spacing: 0.5px;
  }

  [data-md-color-scheme="default"] .md-typeset h2 {
    border-bottom: 1px solid #d8dee8;
  }

  [data-md-color-scheme="default"] .md-typeset a,
  [data-md-color-scheme="default"] .md-nav__link {
    color: var(--ts-accent);
  }

  [data-md-color-scheme="default"] .md-typeset a:hover,
  [data-md-color-scheme="default"] .md-nav__link:hover {
    color: var(--ts-accent-soft);
  }
  color: var(--ts-accent-muted);
}

/* Navigation bar styling */
.md-header {
  background: linear-gradient(90deg, #00010a 0, #06081a 40%, #02141b 100%);
  box-shadow: 0 2px 18px rgba(0, 0, 0, 0.85);
  border-bottom: 1px solid rgba(120, 196, 255, 0.3);
}

.md-header__title {
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Nav sidebar: make it more "app"-like */
.md-sidebar--primary {
  border-right: 1px solid var(--ts-border-subtle);
}

.md-nav__list,
.md-nav {
  font-size: 0.85rem;
}

.md-nav__item .md-nav__link--active,
.md-nav__item .md-nav__link--active::before {
  color: var(--ts-accent);
}

.md-nav__link--active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35rem;
  bottom: 0.35rem;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--ts-accent) 0, var(--ts-accent-soft) 100%);
}

/* Main content cards */
.md-typeset p,
.md-typeset li {
  color: var(--ts-text-muted);
}

.md-typeset code {
  background-color: color-mix(in srgb, var(--ts-bg-alt) 92%, #000000);
  border-radius: 4px;
  border: 1px solid rgba(189, 229, 255, 0.05);
}

.md-typeset pre > code {
  background: radial-gradient(circle at top left, color-mix(in srgb, var(--ts-bg-alt) 80%, #000000) 0, var(--ts-bg) 45%, #020309 100%);
  border-radius: 8px;
  border: 1px solid rgba(135, 216, 255, 0.1);
}

/* Admonitions: flatter and less "Material" */
.md-typeset .admonition,
.md-typeset details {
  border-radius: 10px;
  border-width: 1px;
  border-style: solid;
  background-color: color-mix(in srgb, var(--ts-bg-alt) 94%, #000000);
}

.md-typeset .admonition-title {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
}

/* Tables */
.md-typeset table:not([class]) {
  border-radius: 8px;
  overflow: hidden;
}

.md-typeset table:not([class]) thead {
  background-color: color-mix(in srgb, var(--ts-bg-alt) 92%, #000000);
}

.md-typeset table:not([class]) th,
.md-typeset table:not([class]) td {
  border-color: var(--ts-border-subtle);
}

/* Footer */
.md-footer {
  background: radial-gradient(circle at top, #060711 0, #010106 80%);
  border-top: 1px solid var(--ts-border-subtle);
}

.md-footer-meta {
  font-size: 0.78rem;
}

/* Optional: hide the default Material "Made with" footer branding */
.md-footer__theme {
  display: none;
}

/* --- Dark mode code block contrast fix ---------------------------------- */
/* Ensure previously light gradients on code blocks are overridden in slate scheme */
[data-md-color-scheme="slate"] .md-main__inner .md-typeset pre > code,
[data-md-color-scheme="slate"] .md-typeset pre > code,
[data-md-color-scheme="slate"] .md-typeset pre,
[data-md-color-scheme="slate"] .highlight,
[data-md-color-scheme="slate"] .highlight pre {
  background: #1a1e29 !important; /* deep neutral surface */
  color: #e6ecf5; /* high contrast text */
  border: 1px solid #2f3a4a;
  border-radius: 8px;
}

[data-md-color-scheme="slate"] .md-typeset code {
  background-color: #222836; /* inline code chip */
  color: #e6ecf5;
  border: 1px solid #2f3a4a;
  border-radius: 4px;
  padding: 0.125rem 0.375rem;
}

/* Syntax highlight inner wrapper (pymdownx superfences) */
[data-md-color-scheme="slate"] .md-typeset .highlight code {
  background: transparent;
  color: inherit;
  border: none;
}

/* Scrollbar subtle theming for code blocks */
[data-md-color-scheme="slate"] .md-typeset pre::-webkit-scrollbar {
  height: 10px;
}
[data-md-color-scheme="slate"] .md-typeset pre::-webkit-scrollbar-track {
  background: #1a1e29;
}
[data-md-color-scheme="slate"] .md-typeset pre::-webkit-scrollbar-thumb {
  background: #2f3a4a;
  border-radius: 6px;
}
[data-md-color-scheme="slate"] .md-typeset pre::-webkit-scrollbar-thumb:hover {
  background: #3c4758;
}

/* Improve selection visibility inside code */
[data-md-color-scheme="slate"] .md-typeset pre > code::selection,
[data-md-color-scheme="slate"] .md-typeset code::selection {
  background: rgba(109, 213, 255, 0.28);
  color: #ffffff;
}

/* Match inline code font weight subtly to body text */
[data-md-color-scheme="slate"] .md-typeset code {
  font-weight: 500;
}

/* Feature grids used on the landing page */
/* Container is a DIV wrapping a Markdown UL; style the UL as the grid */
.md-typeset .ts-feature-grid ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
}

/* Card styling for each feature item */
.md-typeset .ts-feature-grid ul > li {
  background: linear-gradient(135deg, color-mix(in srgb, var(--ts-surface) 92%, transparent) 0%, color-mix(in srgb, var(--ts-bg-alt) 88%, transparent) 100%);
  border: 1px solid var(--ts-border-subtle);
  border-radius: 14px;
  padding: 1rem 1.1rem;
  box-shadow: 0 10px 24px -12px rgba(var(--ts-shadow-color, 0 0 0) / 0.35);
  transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}

.md-typeset .ts-feature-grid ul > li:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px -12px rgba(var(--ts-shadow-color, 0 0 0) / 0.45);
  border-color: color-mix(in srgb, var(--ts-accent) 30%, var(--ts-border-subtle));
}

/* Typography inside cards */
.md-typeset .ts-feature-grid strong {
  display: inline-block;
  color: var(--ts-text-main);
  margin-left: .4rem;
}

.md-typeset .ts-feature-grid p,
.md-typeset .ts-feature-grid a {
  margin-top: .35rem;
}

/* Make inline links stand out slightly */
.md-typeset .ts-feature-grid a {
  font-weight: 600;
}

/* Reset default UL margins if a nested paragraph is emitted */
.md-typeset .ts-feature-grid ul > li > p:first-child { margin-top: 0; }

/* Icon shortcode (:material-...:) rendering tweaks */
/* Material to_svg uses <span class="twemoji">...<svg> */
.md-typeset .ts-feature-grid .twemoji,
.md-typeset .ts-feature-grid .md-emoji {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25em;
  height: 1.25em;
  vertical-align: text-bottom;
  color: var(--ts-accent);
  filter: drop-shadow(0 1px 0 rgba(0,0,0,.05));
  margin-right: .15rem;
}

/* Ensure the SVG inherits sizing properly */
.md-typeset .ts-feature-grid .twemoji svg,
.md-typeset .ts-feature-grid .md-emoji svg {
  width: 1.25em;
  height: 1.25em;
}

/* Inline icon helper for <i class="icon material-..."> */
.md-typeset i.icon.material-symbol {
  font-family: "Material Symbols Rounded", sans-serif;
  font-variation-settings: "FILL" 0, "GRAD" 0, "opsz" 24;
  font-style: normal;
  font-weight: 400;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  vertical-align: text-bottom;
}

/* ------------------------------------------------------------- */
/* Responsive video embeds                                       */
/* Wrap iframes or <video> tags with <div class="video-wrapper">  */
/* Ensures consistent 16:9 sizing, rounded corners, and theming.  */
/* ------------------------------------------------------------- */
.md-typeset .video-wrapper {
  position: relative;
  width: 100%;
  max-width: 1000px;
  aspect-ratio: 16 / 9;
  background: #000;
  border: 1px solid var(--ts-border-subtle);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 18px -6px rgba(var(--ts-shadow-color, 0 0 0) / 0.35);
  margin: 1.25rem auto;
}

.md-typeset .video-wrapper iframe,
.md-typeset .video-wrapper video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.md-typeset .video-wrapper:hover {
  box-shadow: 0 10px 28px -10px rgba(var(--ts-shadow-color, 0 0 0) / 0.55);
}

[data-md-color-scheme="slate"] .md-typeset .video-wrapper {
  background: #0b0e18;
  border-color: #2f3a4a;
}

/* Natural-size variant: keep styling but size to intrinsic video dimensions */
.md-typeset .video-wrapper.video-wrapper--natural {
  width: fit-content;
  max-width: 100%;
  aspect-ratio: auto;
  height: auto;
}

.md-typeset .video-wrapper.video-wrapper--natural iframe,
.md-typeset .video-wrapper.video-wrapper--natural video {
  position: static;
  width: auto;
  height: auto;
  max-width: 100%;
  display: block;
}

/* Utility aspect variants (optional future use) */
.md-typeset .video-wrapper[data-ratio="21:9"] { aspect-ratio: 21 / 9; }
.md-typeset .video-wrapper[data-ratio="4:3"] { aspect-ratio: 4 / 3; }
.md-typeset .video-wrapper[data-ratio="1:1"] { aspect-ratio: 1 / 1; }

/* ------------------------------------------------------------- */
/* Responsive image embeds                                       */
/* Wrap images with <div class="image-wrapper"> or use attr_list  */
/* `![alt](src){ .image-wrapper }` for consistent visuals.        */
/* ------------------------------------------------------------- */
.md-typeset div.image-wrapper {
  position: relative;
  width: 100%;
  max-width: 800px;
  aspect-ratio: 16 / 9; /* default; can be overridden via data-ratio */
  background: #0b0e18; /* matches video dark surface */
  border: 1px solid var(--ts-border-subtle);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 18px -6px rgba(var(--ts-shadow-color, 0 0 0) / 0.35);
  margin: 1.25rem auto;
}

.md-typeset div.image-wrapper:hover {
  box-shadow: 0 10px 28px -10px rgba(var(--ts-shadow-color, 0 0 0) / 0.55);
}

.md-typeset div.image-wrapper img {
  position: absolute;
  inset: 0;
  width: 100%;
  max-width: 800px;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Width modifiers for smaller images */
.md-typeset div.image-wrapper.medium,
.md-typeset img.image-wrapper.medium {
  max-width: 400px;
}

.md-typeset div.image-wrapper.small,
.md-typeset img.image-wrapper.small {
  max-width: 200px;
}

.md-typeset div.image-wrapper.medium img,
.md-typeset div.image-wrapper.small img {
  max-width: inherit;
}

/* Natural-size variant: keep max-width but size to intrinsic image width */
.md-typeset div.image-wrapper.image-wrapper--natural {
  width: fit-content;
  aspect-ratio: auto;
  height: auto;
}

.md-typeset div.image-wrapper.image-wrapper--natural img {
  position: static;
  width: auto;
  height: auto;
  max-width: 100%;
  object-fit: contain;
}

/* Utility aspect variants to match video wrapper */
.md-typeset div.image-wrapper[data-ratio="21:9"] { aspect-ratio: 21 / 9; }
.md-typeset div.image-wrapper[data-ratio="4:3"] { aspect-ratio: 4 / 3; }
.md-typeset div.image-wrapper[data-ratio="1:1"] { aspect-ratio: 1 / 1; }

/* Support attr_list applied directly to <img> (no wrapper div) */
.md-typeset img.image-wrapper {
  display: block;
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--ts-border-subtle);
  box-shadow: 0 6px 18px -6px rgba(var(--ts-shadow-color, 0 0 0) / 0.35);
  background: #0b0e18;
  margin: 1.25rem auto;
}

.md-typeset img.image-wrapper:hover {
  box-shadow: 0 10px 28px -10px rgba(var(--ts-shadow-color, 0 0 0) / 0.55);
}

/* Natural-size variant for direct <img> usage */
.md-typeset img.image-wrapper.image-wrapper--natural {
  width: auto;
  max-width: 800px;
  height: auto;
}

/* Image row for side-by-side images */
.md-typeset div.image-row {
  margin: 1.25rem 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  gap: 1rem;
}

/* Let Markdown's wrapping paragraphs participate in the flex layout */
.md-typeset div.image-row p {
  display: contents;
  margin: 0;
}

/* Figure blocks with captions */
.md-typeset div.image-row figure {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0;
  flex: 1 1 0;
  min-width: 0; /* allow shrinking below intrinsic size */
}

.md-typeset div.image-row figcaption {
  text-align: center;
  font-size: 0.85rem;
  color: var(--ts-text-muted);
}

/* Direct images or linked images as flex items */
.md-typeset div.image-row > img,
.md-typeset div.image-row > a,
.md-typeset div.image-row > p > img,
.md-typeset div.image-row > p > a {
  flex: 1 1 0;
  min-width: 0; /* allow shrinking below intrinsic size */
  width: 100%;
  height: auto;
  display: block;
}

/* Images inside figure blocks */
.md-typeset div.image-row figure img {
  width: 100%;
  height: auto;
  display: block;
}

/* --- Changelog-specific styling ---------------------------------------- */

/* Version headings with enhanced spacing and subtle borders */
.md-typeset h2[id*="v3-0-0"],
.md-typeset h2[id^="material-tag"] {
  margin-top: 2.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--ts-border-subtle);
}

/* Definition lists for release metadata */
.md-typeset dl {
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
}

.md-typeset dt {
  font-weight: 600;
  color: var(--ts-text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.md-typeset dd {
  margin-left: 1rem;
  margin-bottom: 0.5rem;
  font-style: italic;
  color: var(--ts-text-muted);
}

/* Changelog admonitions: tighter spacing for cleaner lists */
.md-typeset .admonition ul,
.md-typeset details ul {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.md-typeset .admonition li,
.md-typeset details li {
  margin-bottom: 0.35rem;
}

/* Commit reference details block styling */
.md-typeset details[open] summary {
  margin-bottom: 0.75rem;
}

/* Enhanced link styling for commit hashes and PRs */
.md-typeset a[href*="github.com"] {
  font-family: var(--md-code-font);
  font-size: 0.9em;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.md-typeset a[href*="github.com"]:hover {
  opacity: 1;
}

/* Horizontal rules between versions: more prominent */
.md-typeset hr {
  margin: 2.5rem 0;
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ts-border-subtle) 20%, var(--ts-border-subtle) 80%, transparent);
  opacity: 0.6;
}

[data-md-color-scheme="slate"] .md-typeset hr {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1) 20%, rgba(255,255,255,0.1) 80%, transparent);
}

/* Responsive adjustments for changelog */
@media screen and (max-width: 768px) {
  .md-typeset h2[id*="v3-0-0"],
  .md-typeset h2[id^="material-tag"] {
    font-size: 1.4rem;
  }
  
  .md-typeset dd {
    margin-left: 0.5rem;
  }
}