/* ==========================================================================
   Rad Documentation — "Sunset Terminal" Theme
   A warm, distinctive design reflecting Rad's casual & delightful personality.
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */

:root {
  /* Light Mode Colors */
  --rad-primary: #E85D4C;
  --rad-primary-hover: #D64A39;
  --rad-accent: #2DD4BF;
  --rad-accent-hover: #14B8A6;
  --rad-bg: #FBF9F7;
  --rad-surface: #F5F2EE;
  --rad-text: #2C2825;
  --rad-text-muted: #6B6560;
  --rad-border: #E5E0DA;

  /* Code Syntax — Warm Terminal */
  --rad-code-keyword: #E85D4C;
  --rad-code-string: #F4A261;
  --rad-code-function: #2DD4BF;
  --rad-code-comment: #635E59;
  --rad-code-number: #C4B5FD;
  --rad-code-bg: #F5F2EE;
  --rad-code-border: #E5E0DA;

  /* Shadows */
  --rad-shadow-sm: 0 1px 2px rgba(44, 40, 37, 0.05);
  --rad-shadow-md: 0 4px 6px rgba(44, 40, 37, 0.07);
  --rad-shadow-lg: 0 10px 25px rgba(44, 40, 37, 0.1);

  /* Spacing & Layout */
  --rad-radius-sm: 4px;
  --rad-radius: 8px;
  --rad-radius-lg: 12px;

  /* Semantic Colors */
  --rad-warning: #F4A261;
  --rad-primary-10: rgba(232, 93, 76, 0.1);
  --rad-accent-10: rgba(45, 212, 191, 0.1);
  --rad-warning-10: rgba(244, 162, 97, 0.1);

  /* Typography */
  --rad-font-display: 'Outfit', system-ui, sans-serif;
  --rad-font-body: 'Source Sans 3', system-ui, sans-serif;
  --rad-font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

/* Dark Mode Colors */
[data-md-color-scheme="slate"] {
  --rad-primary: #F4796A;
  --rad-primary-hover: #F5918A;
  --rad-accent: #5EEAD4;
  --rad-accent-hover: #7EEDDB;
  --rad-bg: #1A1817;
  --rad-surface: #242220;
  --rad-text: #F5F2EE;
  --rad-text-muted: #A8A29E;
  --rad-border: #3D3835;

  /* Code Syntax — Dark Warm Terminal */
  --rad-code-keyword: #F4796A;
  --rad-code-string: #F4A261;
  --rad-code-function: #5EEAD4;
  --rad-code-comment: #9A9590;
  --rad-code-number: #C4B5FD;
  --rad-code-bg: #242220;
  --rad-code-border: #3D3835;

  /* Shadows (lighter for dark mode) */
  --rad-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --rad-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.25);
  --rad-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.3);

  /* Semantic Colors (dark mode) */
  --rad-primary-10: rgba(244, 121, 106, 0.1);
  --rad-accent-10: rgba(94, 234, 212, 0.1);
  --rad-warning-10: rgba(244, 162, 97, 0.15);
}

/* --------------------------------------------------------------------------
   MkDocs Material Theme Overrides
   -------------------------------------------------------------------------- */

/* Primary color overrides */
[data-md-color-scheme="default"] {
  --md-primary-fg-color: var(--rad-primary);
  --md-primary-fg-color--light: #F4796A;
  --md-primary-fg-color--dark: #D64A39;
  --md-accent-fg-color: var(--rad-accent);
  --md-default-bg-color: var(--rad-bg);
  --md-default-fg-color: var(--rad-text);
  --md-default-fg-color--light: var(--rad-text-muted);
  --md-typeset-color: var(--rad-text);
  --md-typeset-a-color: var(--rad-primary);
}

[data-md-color-scheme="slate"] {
  --md-primary-fg-color: var(--rad-primary);
  --md-primary-fg-color--light: #F5918A;
  --md-primary-fg-color--dark: #F4796A;
  --md-accent-fg-color: var(--rad-accent);
  --md-default-bg-color: var(--rad-bg);
  --md-default-fg-color: var(--rad-text);
  --md-default-fg-color--light: var(--rad-text-muted);
  --md-typeset-color: var(--rad-text);
  --md-typeset-a-color: var(--rad-primary);
}

/* --------------------------------------------------------------------------
   Base Typography
   -------------------------------------------------------------------------- */

body {
  font-family: var(--rad-font-body);
  background-color: var(--rad-bg);
  color: var(--rad-text);
}

.md-typeset {
  font-family: var(--rad-font-body);
  font-size: 0.85rem;
  line-height: 1.7;
}

/* Headings */
.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  font-family: var(--rad-font-display);
  font-weight: 600;
  color: var(--rad-text);
}

.md-typeset h1 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.md-typeset h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 2.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--rad-border);
}

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

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */

.md-grid {
  max-width: 75rem;
}

/* Page fade-in animation */
@keyframes rad-fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.md-content {
  animation: rad-fade-in 0.3s ease-out;
}

@media (prefers-reduced-motion: reduce) {
  .md-content {
    animation: none;
  }
}

/* --------------------------------------------------------------------------
   Links
   -------------------------------------------------------------------------- */

.md-typeset a {
  color: var(--rad-primary);
  text-decoration: none;
  position: relative;
}

.md-typeset a:not(.md-button):not(.md-nav__link):not(.md-source):not(.headerlink)::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--rad-primary);
  transition: width 0.2s ease;
}

.md-typeset a:not(.md-button):not(.md-nav__link):not(.md-source):not(.headerlink):hover::after {
  width: 100%;
}

@media (prefers-reduced-motion: reduce) {
  .md-typeset a::after {
    transition: none;
  }
}

.md-typeset a:hover {
  color: var(--rad-primary-hover);
}

.md-typeset a:focus-visible {
  outline: 2px solid var(--rad-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */

.md-nav {
  font-family: var(--rad-font-body);
}

/* Section headers in nav */
.md-nav__item--nested > .md-nav__link {
  font-family: var(--rad-font-display);
  font-weight: 600;
}

/* Active nav item */
.md-nav__link--active,
.md-nav__link:focus,
.md-nav__link:hover {
  color: var(--rad-primary);
}

/* Header */
.md-header {
  background-color: var(--rad-surface);
  box-shadow: var(--rad-shadow-sm);
}

[data-md-color-scheme="slate"] .md-header {
  background-color: var(--rad-surface);
}

.md-header__title {
  font-family: var(--rad-font-display);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   Code Blocks — Warm Terminal Theme
   -------------------------------------------------------------------------- */

.md-typeset code,
.md-typeset pre code,
.md-typeset kbd {
  font-family: var(--rad-font-mono);
  font-size: 0.75rem;
}

/* Inline code */
.md-typeset code:not(pre code) {
  background-color: var(--rad-code-bg);
  border: 1px solid var(--rad-code-border);
  border-radius: var(--rad-radius-sm);
  padding: 0.1em 0.35em;
  color: var(--rad-primary);
  font-size: 0.85em;
}

/* Code blocks */
.md-typeset pre {
  background-color: var(--rad-code-bg);
  border: 1px solid var(--rad-code-border);
  border-radius: var(--rad-radius);
  box-shadow: var(--rad-shadow-sm);
}

/* Syntax highlighting — Warm Terminal */
.highlight .k,
.highlight .kd,
.highlight .kn,
.highlight .kp,
.highlight .kr,
.highlight .kt,
.highlight .kc {
  color: var(--rad-code-keyword);
  font-weight: 600;
}

.highlight .s,
.highlight .s1,
.highlight .s2,
.highlight .sb,
.highlight .sc,
.highlight .sd,
.highlight .se,
.highlight .sh,
.highlight .si,
.highlight .sx,
.highlight .sr,
.highlight .ss {
  color: var(--rad-code-string);
}

.highlight .n,
.highlight .na,
.highlight .nb,
.highlight .nc,
.highlight .nd,
.highlight .ne,
.highlight .nf,
.highlight .ni,
.highlight .nl,
.highlight .nn,
.highlight .no,
.highlight .nt,
.highlight .nv,
.highlight .nx {
  color: var(--rad-text);
}

.highlight .nf,
.highlight .fm {
  color: var(--rad-code-function);
}

.highlight .c,
.highlight .c1,
.highlight .ch,
.highlight .cm,
.highlight .cp,
.highlight .cpf,
.highlight .cs {
  color: var(--rad-code-comment);
  font-style: italic;
}

.highlight .m,
.highlight .mb,
.highlight .mf,
.highlight .mh,
.highlight .mi,
.highlight .mo,
.highlight .il {
  color: var(--rad-code-number);
}

.highlight .o,
.highlight .ow,
.highlight .p {
  color: var(--rad-text-muted);
}

/*
 * Line numbers
 * Note: Heavy use of !important below to override MkDocs Material's internal
 * code block styling. Tested with mkdocs-material ~9.x. If upgrading the theme
 * breaks line number alignment, check these selectors first.
 */
.md-typeset .highlighttable {
  background-color: var(--rad-code-bg);
  border: 1px solid var(--rad-code-border);
  border-radius: var(--rad-radius);
  box-shadow: var(--rad-shadow-sm);
  border-spacing: 0;
}

.md-typeset .highlighttable code {
  background: transparent;
  border: none;
}

.md-typeset .highlighttable td {
  border: none;
  padding: 0;
}

.md-typeset .linenos {
  background-color: transparent;
  color: var(--rad-text-muted);
  padding-left: 1em !important;
  padding-right: 1em !important;
  border: none !important;
  border-right: 1px solid var(--rad-code-border) !important;
  user-select: none;
}

.md-typeset .linenodiv {
  background: transparent !important;
  border: none !important;
  box-shadow: none;
  margin: 0;
  padding: 0;
}

.md-typeset .linenodiv pre {
  background: transparent !important;
  border: none !important;
  box-shadow: none;
  margin: 0;
  padding: 0.75em 0;
}

/* Ensure line numbers and code have identical line-height */
.md-typeset .highlighttable .linenos pre,
.md-typeset .highlighttable .code pre,
.md-typeset .highlighttable .code pre code,
.md-typeset .linenodiv pre {
  font-family: var(--rad-font-mono);
  font-size: 0.75rem;
  line-height: 1.45;
}

.md-typeset .highlighttable td.code,
.md-typeset .highlighttable .code {
  padding-left: 1em !important;
  border: none !important;
}

.md-typeset .highlighttable .code pre {
  border: none;
  box-shadow: none;
  margin: 0;
}

/* Copy button */
.md-clipboard {
  color: var(--rad-text-muted);
}

.md-clipboard:hover {
  color: var(--rad-primary);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.md-typeset .md-button {
  font-family: var(--rad-font-display);
  font-weight: 600;
  border-radius: var(--rad-radius);
  padding: 0.75em 1.5em;
  transition: all 0.2s ease;
}

.md-typeset .md-button--primary {
  background-color: var(--rad-primary);
  border-color: var(--rad-primary);
  color: white;
  box-shadow: var(--rad-shadow-sm);
}

.md-typeset .md-button--primary:hover {
  background-color: var(--rad-primary-hover);
  border-color: var(--rad-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--rad-shadow-md);
}

.md-typeset .md-button:not(.md-button--primary) {
  border: 2px solid var(--rad-primary);
  color: var(--rad-primary);
}

.md-typeset .md-button:not(.md-button--primary):hover {
  background-color: var(--rad-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--rad-shadow-md);
}

@media (prefers-reduced-motion: reduce) {
  .md-typeset .md-button:hover {
    transform: none;
  }
}

.md-typeset .md-button:focus-visible {
  outline: 2px solid var(--rad-accent);
  outline-offset: 2px;
}

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

.md-typeset .admonition,
.md-typeset details {
  border-radius: var(--rad-radius);
  border: none;
  box-shadow: var(--rad-shadow-sm);
  font-size: 1em;
}

.md-typeset .admonition > p,
.md-typeset .admonition > ul,
.md-typeset .admonition > ol,
.md-typeset details > p,
.md-typeset details > ul,
.md-typeset details > ol {
  font-size: inherit;
}

.md-typeset .admonition-title,
.md-typeset details summary {
  font-family: var(--rad-font-display);
  font-weight: 600;
  font-size: inherit;
  border-radius: var(--rad-radius) var(--rad-radius) 0 0;
}

/* Note — Teal */
.md-typeset .admonition.note,
.md-typeset details.note {
  border-left: 4px solid var(--rad-accent);
}

.md-typeset .note > .admonition-title,
.md-typeset .note > summary {
  background-color: var(--rad-accent-10);
}

.md-typeset .note > .admonition-title::before,
.md-typeset .note > summary::before {
  background-color: var(--rad-accent);
}

/* Tip — Coral */
.md-typeset .admonition.tip,
.md-typeset details.tip {
  border-left: 4px solid var(--rad-primary);
}

.md-typeset .tip > .admonition-title,
.md-typeset .tip > summary {
  background-color: var(--rad-primary-10);
}

.md-typeset .tip > .admonition-title::before,
.md-typeset .tip > summary::before {
  background-color: var(--rad-primary);
}

/* Warning — Amber */
.md-typeset .admonition.warning,
.md-typeset details.warning {
  border-left: 4px solid var(--rad-warning);
}

.md-typeset .warning > .admonition-title,
.md-typeset .warning > summary {
  background-color: var(--rad-warning-10);
}

/* --------------------------------------------------------------------------
   Tables
   -------------------------------------------------------------------------- */

.md-typeset table:not([class]) {
  border-radius: var(--rad-radius);
  border: 1px solid var(--rad-border);
  overflow: hidden;
  box-shadow: var(--rad-shadow-sm);
  font-size: 1em;
}

.md-typeset table:not([class]) th,
.md-typeset table:not([class]) td {
  font-size: inherit;
  padding: 0.75em 1em;
}

.md-typeset table:not([class]) th {
  font-family: var(--rad-font-display);
  font-weight: 600;
  background-color: var(--rad-surface);
}

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

/* --------------------------------------------------------------------------
   Search
   -------------------------------------------------------------------------- */

.md-search__input {
  border-radius: var(--rad-radius);
  font-family: var(--rad-font-body);
}

.md-search__input:focus,
.md-search__input:hover {
  background-color: var(--rad-surface);
}

[data-md-toggle="search"]:checked ~ .md-header .md-search__input {
  box-shadow: 0 0 0 3px var(--rad-primary-10);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.md-footer {
  background-color: var(--rad-surface);
}

.md-footer-meta {
  background-color: var(--rad-surface);
}

/* --------------------------------------------------------------------------
   Homepage Hero Section
   -------------------------------------------------------------------------- */

.rad-hero {
  padding: 3rem 0 4rem;
  margin: -1rem -0.8rem 2rem;
  background: linear-gradient(135deg, var(--rad-bg) 0%, var(--rad-surface) 100%);
  border-radius: 0 0 var(--rad-radius-lg) var(--rad-radius-lg);
}

.rad-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  max-width: 75rem;
  margin: 0 auto;
  padding: 0 1rem;
}

.rad-hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.rad-hero-title {
  font-family: var(--rad-font-display);
  font-size: 4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--rad-primary); /* Fallback for browsers without background-clip */
  background: linear-gradient(135deg, var(--rad-primary) 0%, var(--rad-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
  line-height: 1.1;
}

.rad-hero-tagline {
  font-family: var(--rad-font-body);
  font-size: 1.25rem;
  color: var(--rad-text-muted);
  line-height: 1.6;
  margin: 0;
}

.rad-hero-tagline strong {
  color: var(--rad-text);
}

.rad-hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.rad-hero-buttons .md-button {
  font-size: 1rem;
}

/* Hero code example */
.rad-hero-code {
  background-color: var(--rad-code-bg);
  border: 1px solid var(--rad-code-border);
  border-radius: var(--rad-radius-lg);
  box-shadow: var(--rad-shadow-lg);
  overflow: hidden;
}

.rad-hero-code-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background-color: var(--rad-surface);
  border-bottom: 1px solid var(--rad-code-border);
}

.rad-hero-code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.rad-hero-code-dot:nth-child(1) { background-color: #FF6057; }
.rad-hero-code-dot:nth-child(2) { background-color: #FFBD2E; }
.rad-hero-code-dot:nth-child(3) { background-color: #27CA40; }

.rad-hero-code-title {
  font-family: var(--rad-font-mono);
  font-size: 0.8rem;
  color: var(--rad-text-muted);
  margin-left: 0.5rem;
}

.rad-hero-code pre {
  margin: 0;
  padding: 1rem;
  border: none;
  box-shadow: none;
  background: transparent;
}

/* Mobile hero */
@media (max-width: 768px) {
  .rad-hero {
    padding: 2rem 0 3rem;
  }

  .rad-hero-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .rad-hero-title {
    font-size: 2.75rem;
  }

  .rad-hero-tagline {
    font-size: 1.1rem;
  }

  .rad-hero-buttons {
    flex-direction: column;
  }

  .rad-hero-buttons .md-button {
    width: 100%;
    text-align: center;
  }
}

/* --------------------------------------------------------------------------
   Tabs (for code examples)
   -------------------------------------------------------------------------- */

.md-typeset .tabbed-labels {
  border-bottom: 2px solid var(--rad-border);
}

.md-typeset .tabbed-labels > label {
  font-family: var(--rad-font-display);
  font-weight: 500;
  color: var(--rad-text-muted);
}

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

.md-typeset [id^="__tabbed_"]:checked + label {
  color: var(--rad-primary);
  border-color: var(--rad-primary);
}

/* --------------------------------------------------------------------------
   Scrollbar (Webkit)
   -------------------------------------------------------------------------- */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--rad-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--rad-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--rad-text-muted);
}