/* ==============================================================================
   Kube32 Material Design 3 (M3) Design System & Motion Engine
   Accurately ported from agentic-video studio (Google Material 3 Expressive)
   Emerald Tonal-Spot Seed (#10b981), M3 Surface Ladder, Gemini Spring Motion,
   Local SIL Open Font License Google Sans Flex & Code, M3 Pill Tabs, M3 Search Bar
   ============================================================================== */

/* Local Fonts (Served directly from repository for zero-latency, full offline support) */
@font-face {
  font-family: "Google Sans Flex";
  font-style: normal;
  font-weight: 1 1000;
  font-stretch: 100%;
  font-display: swap;
  src: url("../fonts/GoogleSansFlex-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Google Sans Flex";
  font-style: normal;
  font-weight: 1 1000;
  font-stretch: 100%;
  font-display: swap;
  src: url("../fonts/GoogleSansFlex-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "Google Sans Code";
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url("../fonts/GoogleSansCode-latin.woff2") format("woff2");
}

:root {
  --font-sans: "Google Sans Flex", "Google Sans", "Roboto Flex", Roboto, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Google Sans Code", "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* MkDocs Font Bridge */
  --md-text-font-family: var(--font-sans);
  --md-code-font-family: var(--font-mono);

  /* Shape: Material 3 corner scale (in px) */
  --r-xs: 4px;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-lg2: 20px;
  --r-xl: 28px;
  --r-xl2: 32px;
  --r-xxl: 48px;
  --r-full: 999px;

  /* Backwards compatibility shape aliases */
  --md-sys-shape-corner-none: 0px;
  --md-sys-shape-corner-xs: var(--r-xs);
  --md-sys-shape-corner-sm: var(--r-sm);
  --md-sys-shape-corner-md: var(--r-md);
  --md-sys-shape-corner-lg: var(--r-lg);
  --md-sys-shape-corner-xl: var(--r-xl);
  --md-sys-shape-corner-full: var(--r-full);

  /* Space: Material 3 4px grid */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 20px;
  --s-6: 24px;
  --s-8: 32px;
  --s-10: 40px;
  --s-12: 48px;
  --s-16: 64px;

  /*
   * Gemini App Spring Motion System (from agentic-video studio)
   * Spatial springs (mass 1, damping 0.9) sampled into CSS linear() curves.
   * Effects: cubic-bezier(0.2, 0, 0, 1) standard easing.
   */
  --ease-spatial: linear(0, 0.008 1.1%, 0.034 2.5%, 0.082 4.1%, 0.166 6.2%, 0.461 13%, 0.578 16%, 0.671 18.8%, 0.75 21.6%, 0.816 24.6%, 0.871 27.8%, 0.917 31.4%, 0.952 35.6%, 0.978 40.8%, 0.995 47.8%, 1.001 60.6%, 1);
  --dur-spatial: 430ms;
  --ease-spatial-fast: linear(0, 0.008 1.1%, 0.033 2.5%, 0.08 4.1%, 0.162 6.2%, 0.462 13.2%, 0.577 16.2%, 0.671 19.1%, 0.749 21.9%, 0.815 24.9%, 0.871 28.1%, 0.916 31.8%, 0.952 36%, 0.978 41.3%, 0.995 48.4%, 1.001 61.4%, 1);
  --dur-spatial-fast: 300ms;
  --ease-spatial-slow: linear(0, 0.008 1.1%, 0.033 2.5%, 0.081 4.1%, 0.163 6.2%, 0.462 13.2%, 0.577 16.2%, 0.671 19%, 0.75 21.9%, 0.816 24.9%, 0.871 28.1%, 0.917 31.8%, 0.952 36%, 0.978 41.2%, 0.995 48.4%, 1.001 61.6%, 1);
  --dur-spatial-slow: 650ms;

  --ease-effects: cubic-bezier(0.2, 0, 0, 1);
  --ease-effects-fast: var(--ease-effects);
  --ease-effects-slow: var(--ease-effects);
  --dur-effects-fast: 150ms;
  --dur-effects: 200ms;
  --dur-effects-slow: 350ms;

  --ease-exit: linear;
  --dur-exit: 200ms;
  --dur-breath: 2800ms;
}

/* ==============================================================================
   Material 3 Emerald Theme - Dark Mode (from agentic-video studio)
   Emerald seed (#10b981) tonal-spot scheme & neural expressive surface layer
   ============================================================================== */
[data-md-color-scheme="slate"],
:root[data-theme="dark"] {
  color-scheme: dark;

  /* M3 Surface Tonal Ladder */
  --well: #0a0f0c;
  --surface: #0f1511;
  --surface-low: #171d19;
  --surface-container: #1b211d;
  --surface-high: #262b28;
  --surface-highest: #303632;
  --on-surface: #dee4de;
  --on-surface-variant: #c0c9c1;
  --on-surface-quiet: #8a938c;
  --outline: #707973;
  --outline-variant: #353d38;
  --inverse-surface: #dee4de;
  --on-inverse: #1b211d;

  /* M3 Emerald Roles */
  --accent: #8ed5b0;
  --on-accent: #003824;
  --accent-container: #00311f;
  --on-accent-container: #aaf2cc;

  --primary: #8ed5b0;
  --on-primary: #003824;
  --primary-container: #005236;
  --on-primary-container: #aaf2cc;

  --secondary: #b4ccbd;
  --on-secondary: #20352a;
  --secondary-container: #364b40;
  --on-secondary-container: #d0e8d8;

  --tertiary: #a5cdde;
  --on-tertiary: #063543;
  --tertiary-container: #244c5a;
  --on-tertiary-container: #c0e9fb;

  --alert: #f2b8b5;
  --scrim: rgb(0 0 0 / 0.72);
  --float-shadow: 0 4px 20px rgb(0 0 0 / 0.35);
  --shimmer: rgb(255 255 255 / 0.045);

  /* Neural Expressive ambient layer */
  --neural-a: #b4ccbd;
  --neural-b: #8ed5b0;
  --neural-c: #a5cdde;
  --neural: linear-gradient(100deg, var(--neural-a) 0%, var(--neural-b) 50%, var(--neural-c) 100%);
  --lit: none;
  --wash: radial-gradient(70% 42% at 50% -8%, color-mix(in srgb, var(--neural-b) 11%, transparent), transparent 70%);

  /* MkDocs Material Theme Bridge */
  --md-default-bg-color: var(--surface);
  --md-default-fg-color: var(--on-surface);
  --md-default-fg-color--light: var(--on-surface-variant);
  --md-default-fg-color--lighter: var(--on-surface-quiet);
  --md-default-fg-color--lightest: var(--outline-variant);

  --md-primary-fg-color: var(--primary);
  --md-primary-fg-color--light: var(--primary-container);
  --md-primary-fg-color--dark: var(--on-primary);
  --md-primary-bg-color: var(--on-primary);
  --md-accent-fg-color: var(--secondary);

  --md-code-bg-color: var(--surface-low);
  --md-code-fg-color: var(--on-surface);
  --md-typeset-color: var(--on-surface);
  --md-typeset-a-color: var(--primary);

  /* Blueprint Grid Accents */
  --k32-grid-line: rgba(142, 213, 176, 0.07);
  --k32-grid-bg: var(--surface-low);
  --k32-card-bg: var(--surface-container);
}

/* ==============================================================================
   Material 3 Emerald Theme - Light Mode (from agentic-video studio)
   ============================================================================== */
[data-md-color-scheme="default"],
:root[data-theme="light"] {
  color-scheme: light;

  /* M3 Surface Tonal Ladder */
  --well: #e7ece6;
  --surface: #f5fbf5;
  --surface-low: #f0f5ef;
  --surface-container: #eaefe9;
  --surface-high: #e4eae4;
  --surface-highest: #d9ded8;
  --on-surface: #1b211d;
  --on-surface-variant: #404943;
  --on-surface-quiet: #707973;
  --outline: #8a938c;
  --outline-variant: #cdd7cf;
  --inverse-surface: #1b211d;
  --on-inverse: #edf2ec;

  /* M3 Emerald Roles */
  --accent: #226a4c;
  --on-accent: #ffffff;
  --accent-container: #aaf2cc;
  --on-accent-container: #002517;

  --primary: #226a4c;
  --on-primary: #ffffff;
  --primary-container: #aaf2cc;
  --on-primary-container: #002517;

  --secondary: #4d6356;
  --on-secondary: #ffffff;
  --secondary-container: #cfe7d7;
  --on-secondary-container: #0b1f16;

  --tertiary: #3b6473;
  --on-tertiary: #ffffff;
  --tertiary-container: #bee9fb;
  --on-tertiary-container: #001f28;

  --alert: #b3261e;
  --scrim: rgb(20 20 20 / 0.5);
  --float-shadow: 0 4px 16px rgb(0 0 0 / 0.08);
  --shimmer: rgb(0 0 0 / 0.04);

  /* Neural Expressive ambient layer */
  --neural-a: #4d6356;
  --neural-b: #226a4c;
  --neural-c: #3b6473;
  --neural: linear-gradient(100deg, var(--neural-a) 0%, var(--neural-b) 50%, var(--neural-c) 100%);
  --lit: none;
  --wash: radial-gradient(70% 42% at 50% -8%, color-mix(in srgb, var(--neural-b) 8%, transparent), transparent 70%);

  /* MkDocs Material Theme Bridge */
  --md-default-bg-color: var(--surface);
  --md-default-fg-color: var(--on-surface);
  --md-default-fg-color--light: var(--on-surface-variant);
  --md-default-fg-color--lighter: var(--on-surface-quiet);
  --md-default-fg-color--lightest: var(--outline-variant);

  --md-primary-fg-color: var(--primary);
  --md-primary-fg-color--light: var(--primary-container);
  --md-primary-fg-color--dark: var(--on-primary);
  --md-primary-bg-color: var(--on-primary);
  --md-accent-fg-color: var(--secondary);

  --md-code-bg-color: var(--surface-low);
  --md-code-fg-color: var(--on-surface);
  --md-typeset-color: var(--on-surface);
  --md-typeset-a-color: var(--primary);

  /* Blueprint Grid Accents */
  --k32-grid-line: rgba(34, 106, 76, 0.06);
  --k32-grid-bg: var(--surface-low);
  --k32-card-bg: var(--surface-container-low);
}

/* ==============================================================================
   Keyframe Micro-Animations & View Transitions (from agentic-video studio)
   ============================================================================== */
@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes sweep {
  from {
    background-position: 100% 0;
  }
  to {
    background-position: -100% 0;
  }
}

@keyframes breathe {
  0%, 100% {
    opacity: 0.45;
  }
  50% {
    opacity: 1;
  }
}

@keyframes pulse-ring {
  0% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--primary) 55%, transparent);
  }
  100% {
    box-shadow: 0 0 0 8px color-mix(in srgb, var(--primary) 0%, transparent);
  }
}

/* Global Selection, Scrollbars & Focus */
::selection {
  background: color-mix(in srgb, var(--secondary) 36%, transparent);
}

:focus-visible:not(.md-search__input):not(.md-search__form):not([for="__search"]) {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  transition: outline-color var(--dur-effects-fast) var(--ease-effects);
}

* {
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--on-surface) 18%, transparent) transparent;
}

::view-transition-old(root) {
  animation: fade var(--dur-exit) var(--ease-exit) reverse both;
}

::view-transition-new(root) {
  animation: fade var(--dur-effects-slow) var(--ease-effects) both;
}

/* ==============================================================================
   Body & Layout Structure
   ============================================================================== */
body {
  background: var(--wash), var(--surface) !important;
  background-attachment: fixed !important;
  color: var(--on-surface) !important;
  font-family: var(--font-sans) !important;
  font-size: 14px !important;
  line-height: 22px !important;
  font-weight: 400 !important;
  -webkit-font-smoothing: antialiased !important;
  text-rendering: optimizeLegibility !important;
}

.md-grid {
  max-width: 76rem !important;
}

.md-content__inner {
  animation: fade var(--dur-effects-slow) var(--ease-effects) both;
}

/* ==============================================================================
   Material 3 Top App Bar (Header)
   ============================================================================== */
.md-header {
  background-color: var(--surface-container) !important;
  color: var(--on-surface) !important;
  border-bottom: 1px solid var(--outline-variant) !important;
  box-shadow: none !important;
  transition: background-color var(--dur-effects) var(--ease-effects) !important;
}

.md-header__inner {
  height: 64px !important;
  display: flex !important;
  align-items: center !important;
  gap: var(--s-3) !important;
}

.md-header__title {
  flex-grow: 1 !important;
  display: flex !important;
  align-items: center !important;
  margin-right: var(--s-3) !important;
  font-family: var(--font-sans) !important;
  font-weight: 600 !important;
  font-size: 1.05rem !important;
  letter-spacing: -0.01em !important;
  color: var(--on-surface) !important;
  font-variation-settings: "ROND" 100 !important;
}

/* Hide hidden buttons and inactive palette options strictly */
.md-header__button[hidden],
.md-header__option [hidden],
[hidden] {
  display: none !important;
}

.md-header__button:not([hidden]) {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 40px !important;
  height: 40px !important;
  padding: 0 !important;
  margin: 0 !important;
  box-sizing: border-box !important;
  color: var(--on-surface-variant) !important;
  border-radius: var(--r-full) !important;
  border: none !important;
  box-shadow: none !important;
  vertical-align: middle !important;
  transition: color var(--dur-effects-fast) var(--ease-effects),
              background-color var(--dur-effects-fast) var(--ease-effects),
              transform var(--dur-spatial-fast) var(--ease-spatial-fast),
              border-radius var(--dur-spatial-fast) var(--ease-spatial-fast) !important;
}

.md-header__button:hover {
  background-color: color-mix(in srgb, var(--on-surface) 8%, transparent) !important;
  color: var(--on-surface) !important;
}

.md-header__button:active {
  transform: scale(0.92) !important;
  border-radius: var(--r-sm) !important;
}

.md-header__button svg,
.md-header__button.md-icon svg {
  display: block !important;
  width: 20px !important;
  height: 20px !important;
  margin: auto !important;
  fill: currentColor !important;
}

/* Theme toggle form & icon button alignment (single button only) */
.md-header__option {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  height: 40px !important;
  margin: 0 !important;
  padding: 0 !important;
}

.md-header__option label.md-header__button:not([hidden]) {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 40px !important;
  height: 40px !important;
  padding: 0 !important;
  margin: 0 !important;
  box-sizing: border-box !important;
}

.md-header__option label.md-header__button[hidden] {
  display: none !important;
}

.md-header__option label.md-header__button svg {
  display: block !important;
  width: 20px !important;
  height: 20px !important;
  margin: auto !important;
}

.md-header__source {
  display: flex !important;
  align-items: center !important;
  width: auto !important;
  max-width: 16rem !important;
}

.md-header__source .md-source {
  width: auto !important;
  max-width: 16rem !important;
}

.md-header__source .md-source__repository {
  max-width: 13rem !important;
}

/* Desktop layout order: Title -> Search -> Theme Switch -> GitHub Repo */
@media screen and (min-width: 60em) {
  /* Hamburger drawer toggle is strictly unnecessary on desktop (tabs are present) */
  .md-header__button[for="__drawer"] {
    display: none !important;
  }
  .md-header__button[for="__search"] {
    display: none !important;
  }
  .md-search {
    order: 1 !important;
    margin-left: auto !important;
  }
  .md-header__option {
    order: 2 !important;
  }
  .md-header__source {
    order: 3 !important;
    margin-left: var(--s-1) !important;
  }
  .md-search__inner {
    position: relative !important;
    width: 14rem !important;
    transition: width var(--dur-spatial) var(--ease-spatial) !important;
  }
  [data-md-toggle="search"]:checked ~ .md-header .md-search__inner {
    width: 26rem !important;
  }
}

/* ==============================================================================
   Material 3 Modal Navigation Drawer & Top App Bar (Mobile Viewports)
   Specification: Google Material 3 Navigation Drawer (m3.material.io)
   ============================================================================== */
@media screen and (max-width: 59.9375em) {
  /* Mobile Top App Bar */
  .md-header__inner {
    padding: 0 var(--s-2) !important;
    gap: var(--s-1) !important;
  }

  .md-header__button[for="__drawer"] {
    display: inline-flex !important;
    order: -1 !important; /* Leftmost */
  }

  .md-header__button.md-logo {
    display: none !important; /* Mobile uses clean hamburger + title pattern */
  }

  .md-header__title {
    display: flex !important;
    align-items: center !important;
    flex-grow: 1 !important;
    margin: 0 var(--s-2) !important;
  }

  .md-header__title .md-header__ellipsis {
    display: flex !important;
    align-items: center !important;
    height: 40px !important;
  }

  .md-header__title .md-header__topic {
    position: static !important;
    opacity: 1 !important;
    transform: none !important;
    font-family: var(--font-sans) !important;
    font-weight: 600 !important;
    font-size: 1.15rem !important;
    color: var(--on-surface) !important;
    letter-spacing: -0.01em !important;
  }

  .md-header__title .md-header__topic + .md-header__topic {
    display: none !important;
  }

  .md-header__option {
    order: 1 !important;
  }

  .md-header__button[for="__search"] {
    display: inline-flex !important;
    order: 2 !important;
  }

  .md-header__source {
    display: none !important; /* Concealed from compact topbar, accessible inside drawer */
  }

  /* Modal Navigation Drawer Container Sheet */
  .md-sidebar--primary {
    position: fixed !important;
    top: 0 !important;
    left: calc(-1 * min(340px, 86vw)) !important;
    width: min(340px, 86vw) !important;
    max-width: 360px !important;
    height: 100% !important;
    z-index: 100 !important;
    background-color: var(--surface-container-low) !important;
    border-radius: 0 28px 28px 0 !important;
    border-right: 1px solid var(--outline-variant) !important;
    box-shadow: 0 8px 36px rgba(0, 0, 0, 0.45) !important;
    overflow: hidden !important;
    transition: transform var(--dur-spatial) var(--ease-spatial) !important;
  }

  [data-md-toggle="drawer"]:checked ~ .md-container .md-sidebar--primary {
    transform: translateX(min(340px, 86vw)) !important;
  }

  .md-sidebar--primary .md-sidebar__scrollwrap {
    background-color: var(--surface-container-low) !important;
    border-radius: 0 28px 28px 0 !important;
    height: 100% !important;
  }

  /* Scrim Backdrop */
  .md-overlay {
    background-color: var(--scrim) !important;
    backdrop-filter: blur(4px) !important;
    -webkit-backdrop-filter: blur(4px) !important;
    transition: opacity var(--dur-effects) var(--ease-effects) !important;
  }

  /* Drawer Header */
  .md-nav--primary .md-nav__title[for="__drawer"] {
    position: relative !important;
    height: 68px !important;
    padding: 0 var(--s-5) !important;
    display: flex !important;
    align-items: center !important;
    gap: var(--s-3) !important;
    background-color: var(--surface-container-low) !important;
    color: var(--on-surface) !important;
    border-bottom: 1px solid var(--outline-variant) !important;
    box-shadow: none !important;
    font-family: var(--font-sans) !important;
    font-size: 1.15rem !important;
    font-weight: 600 !important;
    letter-spacing: -0.01em !important;
    text-transform: none !important;
  }

  .md-nav--primary .md-nav__title .md-logo {
    position: static !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 36px !important;
    height: 36px !important;
    margin: 0 !important;
    padding: 0 !important;
    border-radius: var(--r-full) !important;
    background-color: var(--surface-container-high) !important;
    color: var(--primary) !important;
  }

  .md-nav--primary .md-nav__title .md-logo svg {
    width: 20px !important;
    height: 20px !important;
    fill: currentColor !important;
  }

  /* Drawer Repository Link Strip */
  .md-nav__source {
    background-color: var(--surface-container) !important;
    color: var(--on-surface-variant) !important;
    border-bottom: 1px solid var(--outline-variant) !important;
    padding: var(--s-3) var(--s-5) !important;
    display: flex !important;
    align-items: center !important;
  }

  .md-nav__source .md-source {
    color: var(--on-surface-variant) !important;
    font-family: var(--font-sans) !important;
    font-size: 13.5px !important;
    font-weight: 500 !important;
    display: flex !important;
    align-items: center !important;
  }

  .md-nav__source .md-source__repository {
    max-width: none !important;
    white-space: nowrap !important;
    overflow: visible !important;
  }

  /* Drawer List Container */
  .md-nav--primary .md-nav__list {
    padding: var(--s-3) var(--s-2) !important;
    background-color: var(--surface-container-low) !important;
    box-shadow: none !important;
    border: none !important;
  }

  /* Suppress duplicate link when table of contents toggle is present */
  .md-nav--primary .md-nav__link[for="__toc"] + .md-nav__link {
    display: none !important;
  }

  /* Drawer Individual Items - M3 Floating Pills */
  .md-nav--primary .md-nav__item {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 4px 0 !important;
  }

  .md-nav--primary .md-nav__link {
    display: flex !important;
    align-items: center !important;
    min-height: 48px !important;
    height: 48px !important;
    padding: 0 var(--s-4) !important;
    margin: 0 !important;
    border-radius: var(--r-full) !important;
    font-family: var(--font-sans) !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    color: var(--on-surface-variant) !important;
    border: none !important;
    box-shadow: none !important;
    transition: background-color var(--dur-effects-fast) var(--ease-effects),
                color var(--dur-effects-fast) var(--ease-effects) !important;
  }

  .md-nav--primary .md-nav__link:hover {
    background-color: color-mix(in srgb, var(--on-surface) 8%, transparent) !important;
    color: var(--on-surface) !important;
  }

  /* Active Drawer Item - Authentic M3 Secondary Container Pill */
  .md-nav--primary .md-nav__item--active > .md-nav__link {
    background-color: var(--secondary-container) !important;
    color: var(--on-secondary-container) !important;
    font-weight: 600 !important;
    border-radius: var(--r-full) !important;
    box-shadow: none !important;
  }

  /* Nested Sub-lists */
  .md-nav--primary .md-nav__item--nested > .md-nav > .md-nav__list {
    padding: 4px 0 4px var(--s-3) !important;
    border-left: 2px solid var(--outline-variant) !important;
    margin-left: 20px !important;
  }

  .md-nav--primary .md-nav__item--nested > .md-nav > .md-nav__list .md-nav__link {
    height: 42px !important;
    min-height: 42px !important;
    font-size: 13.5px !important;
    margin: 2px 0 !important;
  }

  .md-nav--primary .md-nav__item--nested > .md-nav > .md-nav__list .md-nav__item--active > .md-nav__link {
    background-color: var(--secondary-container) !important;
    color: var(--on-secondary-container) !important;
    font-weight: 600 !important;
    border-radius: var(--r-full) !important;
  }

  /* Full Screen M3 Search Overlay on Mobile */
  [data-md-toggle="search"]:checked ~ .md-header .md-search {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 100 !important;
    background-color: var(--surface) !important;
    display: flex !important;
    flex-direction: column !important;
    padding: 0 !important;
  }

  [data-md-toggle="search"]:checked ~ .md-header .md-search__inner {
    width: 100% !important;
    padding: var(--s-3) var(--s-4) !important;
    box-sizing: border-box !important;
  }

  [data-md-toggle="search"]:checked ~ .md-header .md-search__output {
    position: relative !important;
    top: 0 !important;
    width: 100% !important;
    flex-grow: 1 !important;
    border: none !important;
    box-shadow: none !important;
  }

  [data-md-toggle="search"]:checked ~ .md-header .md-search__scrollwrap {
    width: 100% !important;
    max-height: calc(100vh - 80px) !important;
  }
}

/* ==============================================================================
   Material 3 Search Bar (Zero Outline - Pure Tonal Surface from library.css)
   ============================================================================== */
.md-search {
  padding: 0 !important;
  outline: none !important;
  border: none !important;
}

.md-search__inner {
  background: transparent !important;
  border-radius: var(--r-full) !important;
  box-shadow: none !important;
  outline: none !important;
  border: none !important;
  padding: 0 !important;
}

.md-search__form {
  height: 40px !important;
  border-radius: var(--r-full) !important;
  background-color: var(--surface-high) !important;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
  overflow: hidden !important;
  transition: background-color var(--dur-effects) var(--ease-effects) !important;
}

.md-search__form:hover {
  background-color: var(--surface-highest) !important;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
}

[data-md-toggle="search"]:checked ~ .md-header .md-search__form,
.md-search__form:focus-within {
  background-color: var(--surface-highest) !important;
  border-radius: var(--r-full) !important;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
}

.md-search__input {
  height: 40px !important;
  line-height: 40px !important;
  border-radius: var(--r-full) !important;
  background: transparent !important;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
  color: var(--on-surface) !important;
  font-family: var(--font-sans) !important;
  font-size: 14px !important;
  padding-left: 44px !important;
  padding-right: 36px !important;
}

.md-search__input::placeholder {
  color: var(--on-surface-quiet) !important;
  opacity: 1 !important;
}

.md-search__input:focus,
.md-search__input:focus-visible {
  outline: none !important;
  box-shadow: none !important;
  border: none !important;
}

.md-search__icon[for="__search"] {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  top: 0 !important;
  left: 12px !important;
  height: 40px !important;
  width: 24px !important;
  color: var(--on-surface-variant) !important;
  pointer-events: none !important;
  border: none !important;
  outline: none !important;
}

.md-search__options {
  top: 0 !important;
  right: 10px !important;
  height: 40px !important;
  display: flex !important;
  align-items: center !important;
  outline: none !important;
  border: none !important;
}

/* Search results dropdown as a floating M3 Surface Container */
.md-search__output {
  top: 48px !important;
  border-radius: var(--r-lg) !important;
  background-color: var(--surface-container) !important;
  border: 1px solid var(--outline-variant) !important;
  box-shadow: var(--float-shadow) !important;
  overflow: hidden !important;
  width: 100% !important;
}

.md-search__scrollwrap {
  background-color: var(--surface-container) !important;
  border-radius: var(--r-lg) !important;
  width: 100% !important;
}

.md-search-result__meta {
  background-color: var(--surface-high) !important;
  color: var(--on-surface-quiet) !important;
  font-family: var(--font-sans) !important;
  font-size: 12px !important;
  font-weight: 500 !important;
  padding: var(--s-2) var(--s-4) !important;
}

.md-search-result__link {
  color: var(--on-surface) !important;
  padding: var(--s-3) var(--s-4) !important;
  transition: background-color var(--dur-effects-fast) var(--ease-effects) !important;
}

.md-search-result__link:hover,
.md-search-result__link:focus {
  background-color: var(--surface-highest) !important;
  color: var(--primary) !important;
}

/* ==============================================================================
   Material 3 Pill Tabs (Identical to agentic-video studio .places/.place in shell.css)
   ============================================================================== */
.md-tabs {
  background-color: var(--surface-container) !important;
  border-bottom: 1px solid var(--outline-variant) !important;
  padding: 6px 0 !important;
  box-shadow: none !important;
}

.md-tabs__list {
  display: flex !important;
  gap: var(--s-1) !important;
  align-items: center !important;
  margin: 0 !important;
  padding: 0 !important;
}

.md-tabs__item {
  margin: 0 !important;
  padding: 0 !important;
  border: none !important;
  display: inline-flex !important;
  align-items: center !important;
}

.md-tabs__link {
  height: 36px !important;
  padding: 0 var(--s-4) !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  border-radius: var(--r-full) !important;
  font-family: var(--font-sans) !important;
  font-size: 14px !important;
  font-weight: 500 !important;
  color: var(--on-surface-quiet) !important;
  border: none !important;
  border-bottom: none !important;
  opacity: 1 !important;
  margin: 0 !important;
  background-color: transparent !important;
  transition: color var(--dur-effects) var(--ease-effects),
              background-color var(--dur-effects) var(--ease-effects),
              transform var(--dur-spatial-fast) var(--ease-spatial-fast) !important;
}

.md-tabs__link:hover {
  color: var(--on-surface) !important;
  background-color: color-mix(in srgb, var(--on-surface) 6%, transparent) !important;
  border: none !important;
}

/* Active tab morphs to a pill filled with secondary-container (agentic-video studio) */
.md-tabs__item--active .md-tabs__link {
  background-color: var(--secondary-container) !important;
  color: var(--on-secondary-container) !important;
  font-weight: 600 !important;
  border: none !important;
  border-bottom: none !important;
  box-shadow: none !important;
}

.md-tabs__item--active .md-tabs__link:hover {
  background-color: color-mix(in srgb, var(--secondary-container) 88%, var(--on-secondary-container)) !important;
  color: var(--on-secondary-container) !important;
}

/* ==============================================================================
   Material 3 Content Tabs (Segmented Connected Group from expressive.css)
   ============================================================================== */
.md-typeset .tabbed-set {
  margin: var(--s-5) 0 !important;
  border-radius: var(--r-lg) !important;
  background: transparent !important;
}

.md-typeset .tabbed-labels {
  display: inline-flex !important;
  gap: 2px !important;
  padding: 3px !important;
  border-radius: var(--r-full) !important;
  background-color: var(--surface-container) !important;
  box-shadow: none !important;
  border: 1px solid var(--outline-variant) !important;
  margin-bottom: var(--s-3) !important;
}

.js .md-typeset .tabbed-labels:before {
  display: none !important; /* Eliminate bottom line indicator */
}

.md-typeset .tabbed-labels > label {
  height: 32px !important;
  padding: 0 var(--s-4) !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  border-radius: var(--r-full) !important;
  font-family: var(--font-sans) !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  color: var(--on-surface-quiet) !important;
  border: none !important;
  cursor: pointer !important;
  transition: color var(--dur-effects) var(--ease-effects),
              background-color var(--dur-effects) var(--ease-effects),
              border-radius var(--dur-spatial-fast) var(--ease-spatial-fast) !important;
}

.md-typeset .tabbed-labels > label:hover {
  color: var(--on-surface) !important;
  background-color: color-mix(in srgb, var(--on-surface) 6%, transparent) !important;
}

/* Active tab morphs to secondary-container pill */
.md-typeset .tabbed-set > input:nth-child(1):checked ~ .tabbed-labels > :nth-child(1),
.md-typeset .tabbed-set > input:nth-child(2):checked ~ .tabbed-labels > :nth-child(2),
.md-typeset .tabbed-set > input:nth-child(3):checked ~ .tabbed-labels > :nth-child(3),
.md-typeset .tabbed-set > input:nth-child(4):checked ~ .tabbed-labels > :nth-child(4),
.md-typeset .tabbed-set > input:nth-child(5):checked ~ .tabbed-labels > :nth-child(5),
.md-typeset .tabbed-set > input:nth-child(6):checked ~ .tabbed-labels > :nth-child(6) {
  background-color: var(--secondary-container) !important;
  color: var(--on-secondary-container) !important;
  font-weight: 600 !important;
  border-radius: var(--r-full) !important;
  border: none !important;
}

.md-typeset .tabbed-content {
  border-radius: var(--r-lg) !important;
}

.md-typeset .tabbed-block {
  padding: 0 !important;
}

/* ==============================================================================
   Material 3 Navigation Drawer & Table of Contents
   ============================================================================== */
.md-nav__link {
  border-radius: var(--r-full) !important;
  padding: var(--s-1) var(--s-3) !important;
  font-family: var(--font-sans) !important;
  font-size: 13.5px !important;
  font-weight: 400 !important;
  color: var(--on-surface-variant) !important;
  transition: background-color var(--dur-effects-fast) var(--ease-effects),
              color var(--dur-effects-fast) var(--ease-effects),
              transform var(--dur-spatial-fast) var(--ease-spatial-fast) !important;
}

.md-nav__link:hover {
  background-color: color-mix(in srgb, var(--on-surface) 6%, transparent) !important;
  color: var(--on-surface) !important;
}

.md-nav__item--active > .md-nav__link {
  color: var(--on-secondary-container) !important;
  font-weight: 600 !important;
  background-color: var(--secondary-container) !important;
}

.md-nav__title {
  font-family: var(--font-sans) !important;
  font-size: 11.5px !important;
  text-transform: uppercase !important;
  letter-spacing: 0.05em !important;
  font-weight: 600 !important;
  color: var(--on-surface-quiet) !important;
}

/* ==============================================================================
   Material 3 Typography Scale (from agentic-video studio base.css)
   ============================================================================== */
.md-typeset {
  font-family: var(--font-sans) !important;
  font-size: 14.5px !important;
  line-height: 1.65 !important;
  color: var(--on-surface) !important;
}

.md-typeset h1 {
  font-family: var(--font-sans) !important;
  font-size: 34px !important;
  line-height: 42px !important;
  font-weight: 600 !important;
  letter-spacing: -0.01em !important;
  font-variation-settings: "ROND" 100 !important;
  color: var(--primary) !important;
  margin-bottom: var(--s-4) !important;
}

.md-typeset h2 {
  font-family: var(--font-sans) !important;
  font-size: 24px !important;
  line-height: 32px !important;
  font-weight: 600 !important;
  letter-spacing: -0.005em !important;
  font-variation-settings: "ROND" 100 !important;
  color: var(--on-surface) !important;
  margin-top: var(--s-8) !important;
  margin-bottom: var(--s-3) !important;
  padding-bottom: var(--s-1) !important;
  border-bottom: 1px solid var(--outline-variant) !important;
}

.md-typeset h3 {
  font-family: var(--font-sans) !important;
  font-size: 18px !important;
  line-height: 26px !important;
  font-weight: 600 !important;
  font-variation-settings: "ROND" 100 !important;
  color: var(--on-surface) !important;
  margin-top: var(--s-6) !important;
  margin-bottom: var(--s-2) !important;
}

.md-typeset p {
  color: var(--on-surface) !important;
  line-height: 1.65 !important;
  margin-bottom: 1em !important;
}

.md-typeset a {
  color: var(--primary) !important;
  font-weight: 500 !important;
  text-decoration: none !important;
  transition: color var(--dur-effects-fast) var(--ease-effects) !important;
}

.md-typeset a:hover {
  color: var(--secondary) !important;
  text-decoration: underline !important;
}

/* ==============================================================================
   Material 3 Cards & Components (Grounded Tonal Surfaces - Zero Heavy Shadows)
   ============================================================================== */
/* Tonal Blueprint Card */
.blueprint-card {
  position: relative;
  background-color: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--r-lg);
  padding: var(--s-5) var(--s-6);
  margin: var(--s-6) 0;
  line-height: 1.65;
  font-size: 14px;
  box-shadow: none;
  transition: border-color var(--dur-spatial-fast) var(--ease-spatial-fast),
              background-color var(--dur-spatial-fast) var(--ease-spatial-fast);
}

.blueprint-card:hover {
  border-color: var(--outline);
  background-color: var(--surface-container);
}

.blueprint-card strong {
  color: var(--primary);
  font-weight: 600;
}

/* Metric Grid & Metric Cards */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-4);
  margin: var(--s-6) 0;
}

@media (max-width: 900px) {
  .metric-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .metric-grid {
    grid-template-columns: 1fr;
  }
}

.metric-card {
  background-color: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--r-lg);
  padding: var(--s-5) var(--s-4);
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  box-shadow: none;
  cursor: default;
  transition: border-color var(--dur-spatial-fast) var(--ease-spatial-fast),
              background-color var(--dur-spatial-fast) var(--ease-spatial-fast);
}

.metric-card:hover {
  background-color: var(--surface-container);
  border-color: var(--outline);
}

.metric-card .metric-value {
  font-family: var(--font-sans);
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-variation-settings: "ROND" 100;
  transition: color var(--dur-effects-fast) var(--ease-effects);
}

.metric-card:hover .metric-value {
  color: var(--secondary);
}

.metric-card .metric-label {
  font-size: 0.74rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--on-surface-variant);
  margin-top: var(--s-1);
}

/* Tech Badges / Filter Chips (Material 3 Chip style) */
.tech-badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--r-sm);
  background-color: var(--secondary-container);
  color: var(--on-secondary-container);
  border: 1px solid var(--outline-variant);
  margin-right: 6px;
  transition: background-color var(--dur-effects-fast) var(--ease-effects),
              border-color var(--dur-effects-fast) var(--ease-effects);
}

.tech-badge:hover {
  background-color: color-mix(in srgb, var(--secondary-container) 85%, var(--on-secondary-container));
  border-color: var(--outline);
}

/* Blueprint Grid Box */
.blueprint-grid {
  border: 1px solid var(--outline-variant);
  border-radius: var(--r-md);
  padding: var(--s-5);
  margin: var(--s-6) 0;
  background-color: var(--k32-grid-bg);
  background-image:
    linear-gradient(var(--k32-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--k32-grid-line) 1px, transparent 1px);
  background-size: 18px 18px;
}

/* ==============================================================================
   Material 3 Tables
   ============================================================================== */
.md-typeset table:not([class]) {
  font-size: 0.88rem !important;
  border: 1px solid var(--outline-variant) !important;
  border-radius: var(--r-md) !important;
  overflow: hidden !important;
  border-collapse: separate !important;
  border-spacing: 0 !important;
  margin: var(--s-5) 0 !important;
  width: 100% !important;
  box-shadow: none !important;
}

.md-typeset table:not([class]) th {
  background-color: var(--surface-container) !important;
  font-family: var(--font-sans) !important;
  font-weight: 600 !important;
  color: var(--on-surface) !important;
  border-bottom: 1px solid var(--outline-variant) !important;
  padding: var(--s-2) var(--s-4) !important;
  font-variation-settings: "ROND" 100 !important;
}

.md-typeset table:not([class]) td {
  padding: var(--s-2) var(--s-4) !important;
  border-bottom: 1px solid var(--outline-variant) !important;
  color: var(--on-surface) !important;
  transition: background-color var(--dur-effects-fast) var(--ease-effects) !important;
}

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

.md-typeset table:not([class]) tr:hover td {
  background-color: var(--surface-container-high) !important;
}

/* ==============================================================================
   Material 3 Code Blocks & Inline Code (Google Sans Code)
   ============================================================================== */
.md-typeset code {
  font-family: var(--font-mono) !important;
  font-size: 0.85em !important;
  background-color: var(--surface-high) !important;
  color: var(--primary) !important;
  border-radius: var(--r-xs) !important;
  padding: 2px 6px !important;
  white-space: nowrap !important;
  transition: background-color var(--dur-effects-fast) var(--ease-effects) !important;
}

.md-typeset code:hover {
  background-color: var(--surface-highest) !important;
}

.md-typeset h1 code,
.md-typeset h2 code,
.md-typeset h3 code,
.md-typeset h4 code {
  font-family: var(--font-mono) !important;
  font-size: 0.9em !important;
  font-weight: 600 !important;
  color: inherit !important;
  background-color: transparent !important;
  border: none !important;
  padding: 0 !important;
}

.md-typeset pre {
  border-radius: var(--r-lg) !important;
  border: 1px solid var(--outline-variant) !important;
  background-color: var(--surface-low) !important;
  box-shadow: none !important;
  padding: 0.85rem 2.85rem 0.85rem 1rem !important;
  transition: border-color var(--dur-spatial-fast) var(--ease-spatial-fast) !important;
}

.md-typeset pre:hover {
  border-color: var(--outline) !important;
}

.md-typeset pre > code {
  font-family: var(--font-mono) !important;
  font-size: 0.84rem !important;
  line-height: 1.55 !important;
  background-color: transparent !important;
  border: none !important;
  padding: 0 !important;
  white-space: pre !important;
  color: var(--on-surface) !important;
}

/* M3 Icon-Button Clipboard Copy */
.md-clipboard {
  color: var(--on-surface-variant) !important;
  border-radius: var(--r-full) !important;
  transition: color var(--dur-effects-fast) var(--ease-effects),
              transform var(--dur-spatial-fast) var(--ease-spatial-fast),
              background-color var(--dur-effects-fast) var(--ease-effects) !important;
}

.md-clipboard:hover {
  color: var(--primary) !important;
  background-color: var(--surface-high) !important;
  transform: scale(1.08) !important;
}

.md-clipboard:active {
  transform: scale(0.92) !important;
}

/* ==============================================================================
   Material 3 Admonitions
   ============================================================================== */
.md-typeset .admonition {
  border-radius: var(--r-md) !important;
  border: 1px solid var(--outline-variant) !important;
  background-color: var(--surface-container-low) !important;
  box-shadow: none !important;
  font-size: 0.88rem !important;
  margin: var(--s-5) 0 !important;
  overflow: hidden !important;
  transition: border-color var(--dur-spatial-fast) var(--ease-spatial-fast) !important;
}

.md-typeset .admonition:hover {
  border-color: var(--outline) !important;
}

.md-typeset .admonition-title {
  font-family: var(--font-sans) !important;
  font-weight: 600 !important;
  background-color: var(--surface-container) !important;
  border-bottom: 1px solid var(--outline-variant) !important;
  font-variation-settings: "ROND" 100 !important;
}

/* ==============================================================================
   Material 3 Grid Cards
   ============================================================================== */
.md-typeset .grid.cards > ul > li,
.md-typeset .grid.cards > ol > li,
.md-typeset .grid > .card {
  background-color: var(--surface-container-low) !important;
  border: 1px solid var(--outline-variant) !important;
  border-radius: var(--r-lg) !important;
  box-shadow: none !important;
  transform: none !important;
  transition: border-color var(--dur-spatial-fast) var(--ease-spatial-fast),
              background-color var(--dur-spatial-fast) var(--ease-spatial-fast) !important;
}

.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid.cards > ol > li:hover,
.md-typeset .grid > .card:hover {
  background-color: var(--surface-container) !important;
  border-color: var(--outline) !important;
  box-shadow: none !important;
  transform: none !important;
}

/* ==============================================================================
   Mermaid Diagrams
   ============================================================================== */
.mermaid {
  text-align: center;
  margin: var(--s-6) 0 !important;
  background-color: var(--surface-container-low) !important;
  background-image:
    linear-gradient(var(--k32-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--k32-grid-line) 1px, transparent 1px) !important;
  background-size: 16px 16px !important;
  border: 1px solid var(--outline-variant) !important;
  border-radius: var(--r-lg) !important;
  padding: var(--s-6) !important;
  box-shadow: none !important;
  overflow-x: auto !important;
  transition: border-color var(--dur-spatial-fast) var(--ease-spatial-fast) !important;
}

.mermaid:hover {
  border-color: var(--outline) !important;
  box-shadow: none !important;
  transform: none !important;
}

.mermaid svg {
  max-width: 100% !important;
  height: auto !important;
  display: block;
  margin: 0 auto;
}

/* Live Cluster Telemetry Indicator Pill */
.cluster-pill-live {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 3px 12px;
  border-radius: var(--r-full);
  background-color: var(--secondary-container);
  color: var(--on-secondary-container);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
}

.cluster-dot-live {
  width: 7px;
  height: 7px;
  border-radius: var(--r-full);
  background-color: var(--primary);
  animation: pulse-ring 2s cubic-bezier(0.2, 0, 0, 1) infinite, breathe var(--dur-breath) ease-in-out infinite;
}

/* ==============================================================================
   Reduced Motion Accessibility
   ============================================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    transition-duration: 1ms !important;
  }
}