/* ============================================
   shadcn/ui inspired theme for MkDocs Material
   ============================================ */

/* --- Design Tokens --- */

:root {
  --shadcn-background: #ffffff;
  --shadcn-foreground: #0a0a0a;
  --shadcn-card: #ffffff;
  --shadcn-card-foreground: #0a0a0a;
  --shadcn-muted: #f5f5f5;
  --shadcn-muted-foreground: #737373;
  --shadcn-border: #e5e5e5;
  --shadcn-input: #e5e5e5;
  --shadcn-ring: #0a0a0a;
  --shadcn-radius: 0.5rem;
  --shadcn-primary: #171717;
  --shadcn-primary-foreground: #fafafa;
  --shadcn-secondary: #f5f5f5;
  --shadcn-accent: #f5f5f5;
  --shadcn-accent-foreground: #171717;
  --shadcn-destructive: #ef4444;
  --shadcn-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadcn-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadcn-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

[data-md-color-scheme="slate"] {
  --shadcn-background: #0a0a0a;
  --shadcn-foreground: #fafafa;
  --shadcn-card: #0a0a0a;
  --shadcn-card-foreground: #fafafa;
  --shadcn-muted: #262626;
  --shadcn-muted-foreground: #a3a3a3;
  --shadcn-border: #262626;
  --shadcn-input: #262626;
  --shadcn-ring: #d4d4d4;
  --shadcn-primary: #fafafa;
  --shadcn-primary-foreground: #171717;
  --shadcn-secondary: #262626;
  --shadcn-accent: #262626;
  --shadcn-accent-foreground: #fafafa;
  --shadcn-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadcn-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.4), 0 1px 2px -1px rgb(0 0 0 / 0.3);
  --shadcn-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
}

/* --- MkDocs Variable Mapping --- */

[data-md-color-scheme="default"] {
  --md-default-bg-color: var(--shadcn-background);
  --md-default-fg-color: var(--shadcn-foreground);
  --md-primary-fg-color: var(--shadcn-background);
  --md-primary-bg-color: var(--shadcn-foreground);
  --md-accent-fg-color: #6366f1;
  --md-typeset-a-color: #6366f1;
}

[data-md-color-scheme="slate"] {
  --md-default-bg-color: var(--shadcn-background);
  --md-default-fg-color: var(--shadcn-foreground);
  --md-primary-fg-color: #171717;
  --md-primary-bg-color: var(--shadcn-foreground);
  --md-accent-fg-color: #818cf8;
  --md-typeset-a-color: #818cf8;
}

/* --- Typography --- */

.md-typeset {
  font-size: 0.875rem;
  line-height: 1.625;
  letter-spacing: -0.01em;
  color: var(--shadcn-foreground);
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4 {
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--shadcn-foreground);
}

.md-typeset h1 { font-size: 2rem; margin-bottom: 1rem; }

.md-typeset h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--shadcn-border);
}

.md-typeset h3 { font-size: 1.25rem; margin-top: 2rem; }

/* --- Header --- */

.md-header {
  background-color: var(--shadcn-background);
  border-bottom: 1px solid var(--shadcn-border);
  box-shadow: none;
  color: var(--shadcn-foreground);
}

.md-header[data-md-state="shadow"] {
  box-shadow: none;
  border-bottom: 1px solid var(--shadcn-border);
}

/* --- Sidebar / Navigation (ghost button style) --- */

.md-sidebar { border-right: 1px solid var(--shadcn-border); }

.md-nav__link {
  font-size: 0.825rem;
  border-radius: var(--shadcn-radius);
  padding: 0.25rem 0.5rem;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.md-nav__link:hover {
  background-color: var(--shadcn-accent);
  color: var(--shadcn-accent-foreground);
}

.md-nav__link--active {
  font-weight: 600;
  color: var(--shadcn-foreground);
  background-color: var(--shadcn-muted);
}

/* --- Search (Input style) --- */

.md-search__input {
  background-color: var(--shadcn-background);
  border: 1px solid var(--shadcn-border);
  border-radius: var(--shadcn-radius);
  font-size: 0.8125rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.md-search__input:focus {
  border-color: var(--shadcn-ring);
  box-shadow: 0 0 0 2px var(--shadcn-background), 0 0 0 4px var(--shadcn-ring);
  outline: none;
}

.md-search__input::placeholder { color: var(--shadcn-muted-foreground); }

.md-search-result__meta { color: var(--shadcn-muted-foreground); font-size: 0.75rem; }

.md-search-result__item {
  border-bottom: 1px solid var(--shadcn-border);
  padding: 0.5rem 0.75rem;
}

/* --- Code blocks (with header) --- */

.md-typeset code {
  background-color: var(--shadcn-muted);
  border: 1px solid var(--shadcn-border);
  border-radius: calc(var(--shadcn-radius) * 0.5);
  padding: 0.15em 0.4em;
  font-size: 0.8125rem;
  color: var(--shadcn-foreground);
}

.md-typeset pre {
  border: 1px solid var(--shadcn-border);
  border-radius: var(--shadcn-radius);
  overflow: hidden;
  position: relative;
}

.md-typeset pre > code {
  border: none;
  background: var(--shadcn-muted);
  font-size: 0.8125rem;
  padding: 1rem;
}

/* Code copy button */
.md-clipboard {
  color: var(--shadcn-muted-foreground);
  transition: color 0.15s ease;
}

.md-clipboard:hover {
  color: var(--shadcn-foreground);
}

/* Code language label */
.highlight .filename {
  background-color: var(--shadcn-muted);
  border-bottom: 1px solid var(--shadcn-border);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--shadcn-muted-foreground);
  padding: 0.375rem 0.75rem;
}

/* --- Tables --- */

.md-typeset table:not([class]) {
  border: 1px solid var(--shadcn-border);
  border-radius: var(--shadcn-radius);
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  font-size: 0.8125rem;
}

.md-typeset table:not([class]) th {
  background-color: var(--shadcn-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--shadcn-border);
  padding: 0.625rem 1rem;
}

.md-typeset table:not([class]) td {
  border-bottom: 1px solid var(--shadcn-border);
  padding: 0.625rem 1rem;
}

.md-typeset table:not([class]) tr:last-child td { border-bottom: none; }

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

/* --- Admonitions / Callouts --- */

.md-typeset .admonition,
.md-typeset details {
  border: 1px solid var(--shadcn-border);
  border-radius: var(--shadcn-radius);
  border-left: 4px solid;
  box-shadow: none;
  background: var(--shadcn-card);
  font-size: 0.8125rem;
  overflow: hidden;
}

.md-typeset .admonition-title,
.md-typeset summary {
  background-color: var(--shadcn-muted);
  border-bottom: 1px solid var(--shadcn-border);
  font-weight: 600;
  font-size: 0.8125rem;
}

/* --- Tabs (underline indicator style) --- */

.md-typeset .tabbed-labels {
  border-bottom: 1px solid var(--shadcn-border);
}

.md-typeset .tabbed-labels > label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--shadcn-muted-foreground);
  padding: 0.625rem 1rem;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.md-typeset .tabbed-labels > label:hover {
  color: var(--shadcn-foreground);
}

.md-typeset .tabbed-labels > label.tabbed-labels--active,
.md-typeset .tabbed-labels > input:checked + label {
  color: var(--shadcn-foreground);
  font-weight: 600;
  border-bottom-color: var(--shadcn-foreground);
}

/* --- Checkboxes --- */

.md-typeset .task-list-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 1rem;
  height: 1rem;
  border: 1px solid var(--shadcn-primary);
  border-radius: calc(var(--shadcn-radius) * 0.25);
  background: var(--shadcn-background);
  cursor: pointer;
  position: relative;
  vertical-align: middle;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.md-typeset .task-list-item input[type="checkbox"]:checked {
  background-color: var(--shadcn-primary);
  border-color: var(--shadcn-primary);
}

.md-typeset .task-list-item input[type="checkbox"]:checked::after {
  content: "✓";
  position: absolute;
  top: -1px;
  left: 2px;
  font-size: 0.75rem;
  color: var(--shadcn-primary-foreground);
  font-weight: 700;
}

/* --- Blockquote --- */

.md-typeset blockquote {
  border-left: 3px solid var(--shadcn-border);
  background-color: var(--shadcn-muted);
  border-radius: 0 var(--shadcn-radius) var(--shadcn-radius) 0;
  padding: 0.75rem 1rem;
  color: var(--shadcn-muted-foreground);
  font-size: 0.8125rem;
}

/* --- Horizontal Rule --- */

.md-typeset hr {
  border: none;
  border-top: 1px solid var(--shadcn-border);
  margin: 2rem 0;
}

/* --- Links --- */

.md-typeset a { text-decoration: none; transition: color 0.15s ease; }

.md-typeset a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* --- Tags / Badges --- */

.md-typeset .md-tag {
  background-color: var(--shadcn-secondary);
  color: var(--shadcn-foreground);
  border: 1px solid var(--shadcn-border);
  border-radius: 9999px;
  padding: 0.125rem 0.625rem;
  font-size: 0.6875rem;
  font-weight: 500;
  line-height: 1.5;
  transition: background-color 0.15s ease;
}

.md-typeset .md-tag:hover {
  background-color: var(--shadcn-muted);
}

/* --- TOC (Table of Contents) --- */

.md-nav--secondary .md-nav__link {
  font-size: 0.75rem;
  color: var(--shadcn-muted-foreground);
  border-left: 2px solid transparent;
  border-radius: 0;
  padding: 0.25rem 0 0.25rem 0.75rem;
}

.md-nav--secondary .md-nav__link--active {
  color: var(--shadcn-foreground);
  font-weight: 600;
  border-left-color: var(--shadcn-foreground);
  background: none;
}

.md-nav--secondary .md-nav__link:hover {
  color: var(--shadcn-foreground);
  background: none;
}

/* --- Toast / Dialog (clipboard copy) --- */

.md-dialog {
  background-color: var(--shadcn-foreground) !important;
  color: var(--shadcn-background) !important;
  border-radius: var(--shadcn-radius);
  box-shadow: var(--shadcn-shadow-md);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.625rem 1rem;
  border: 1px solid var(--shadcn-border);
}

.md-dialog__inner {
  background-color: var(--shadcn-foreground) !important;
  color: var(--shadcn-background) !important;
}

/* --- Back to Top button (icon-only, bottom-right) --- */

.md-top {
  position: fixed !important;
  top: auto !important;
  bottom: 1.5rem !important;
  right: calc((100% - 1200px) / 2 + 200px) !important;
  left: auto !important;
  margin: 0 !important;
  transform: none !important;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  background-color: var(--shadcn-background);
  color: var(--shadcn-foreground);
  border: 1px solid var(--shadcn-border);
  border-radius: var(--shadcn-radius);
  box-shadow: var(--shadcn-shadow);
  font-size: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
  z-index: 100;
}

.md-top::before {
  content: "↑";
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
}

.md-top svg { display: none; }

.md-top:hover {
  background-color: var(--shadcn-muted);
  box-shadow: var(--shadcn-shadow-md);
}

/* --- Footer navigation (prev/next cards) --- */

.md-footer {
  background-color: var(--shadcn-background);
  border-top: 1px solid var(--shadcn-border);
  color: var(--shadcn-muted-foreground);
}

.md-footer__link {
  padding: 1rem 1.5rem;
  transition: background-color 0.15s ease;
}

.md-footer__link:hover {
  background-color: var(--shadcn-muted);
}

.md-footer__title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--shadcn-foreground);
}

.md-footer__direction {
  font-size: 0.6875rem;
  color: var(--shadcn-muted-foreground);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Scrollbar (dark mode) --- */

[data-md-color-scheme="slate"] ::-webkit-scrollbar { width: 8px; }
[data-md-color-scheme="slate"] ::-webkit-scrollbar-track { background: var(--shadcn-background); }
[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb { background: var(--shadcn-muted); border-radius: 4px; }

/* --- Content width --- */

.md-grid { max-width: 1200px; }