/* ── Normalize root font-size ───────────────────────────── */
/* MkDocs Material inflates to 125–150% — force 16px baseline */
html {
  font-size: 100% !important;
}

/* ── Full-width layout — remove side gaps ──────────────────── */
/* MkDocs Material defaults to max-width: 61rem (976px) on .md-grid
   which creates large empty margins on wide screens. Override to fill. */
.md-grid {
  max-width: 100% !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}

.md-header__inner,
.md-tabs__inner {
  max-width: 100% !important;
  padding-left: 1rem !important;
  padding-right: 1rem !important;
}

/* Keep content area comfortable — don't let text stretch too wide */
.md-content__inner {
  max-width: 56rem;
  padding-left: 1.5rem !important;
  padding-right: 1.5rem !important;
}

/* Footer full width */
.md-footer-meta__inner {
  max-width: 100% !important;
  padding-left: 1rem !important;
  padding-right: 1rem !important;
}

/* ── Design Tokens ────────────────────────────────────────── */
:root {
  --pv-radius-sm: 8px;
  --pv-radius-md: 12px;
  --pv-radius-lg: 16px;

  --pv-space-xs: 4px;
  --pv-space-sm: 8px;
  --pv-space-md: 16px;
  --pv-space-lg: 24px;
  --pv-space-xl: 32px;
  --pv-space-2xl: 48px;

  --pv-transition-fast: 150ms;
  --pv-transition-normal: 200ms;

  --pv-toc-active: var(--md-accent-fg-color);

  --pv-header-bg: var(--md-default-bg-color);
  --pv-header-border: var(--md-default-fg-color--lightest);

  --pv-fs-h1: 31px;
  --pv-fs-h2: 21px;
  --pv-fs-h3: 17px;
  --pv-fs-body: 16px;
  --pv-fs-small: 13px;
  --pv-fs-xs: 11px;
}

/* ── Typography Scale (absolute px, referencing 16px root) ── */
.md-typeset h1 {
  font-weight: 800 !important;
  font-size: 3.5rem !important;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--pv-space-xl);
  background: linear-gradient(135deg, #FFF 0%, #94A3B8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
[data-md-color-scheme="default"] .md-typeset h1 {
  background: linear-gradient(135deg, #0F172A 0%, #475569 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Hero H1 — override MkDocs scoping, must be outside .md-typeset */
.pv-hero-content h1 {
  font-size: 3.8rem !important;
  font-weight: 900 !important;
  line-height: 1.05 !important;
  letter-spacing: -0.04em !important;
  margin-bottom: var(--pv-space-lg) !important;
  background: linear-gradient(135deg, #FFFFFF 0%, #A5B4FC 50%, #67E8F9 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  color: transparent !important;
}
[data-md-color-scheme="default"] .pv-hero-content h1 {
  background: linear-gradient(135deg, #0F172A 0%, #3730A3 50%, #0891B2 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
}

.md-typeset h2 {
  font-weight: 700;
  font-size: var(--pv-fs-h2) !important;
  line-height: 1.3;
  margin-top: var(--pv-space-2xl);
  margin-bottom: var(--pv-space-lg);
  border-bottom: none;
  padding-bottom: 0;
  /* Strong visual separation from body text */
  color: var(--md-default-fg-color);
  letter-spacing: -0.02em;
}

[data-md-color-scheme="slate"] .md-typeset h2 {
  color: #F1F5F9; /* near-white, clearly distinct from #94A3B8 body secondary text */
}

.md-typeset h3 {
  font-weight: 600;
  font-size: var(--pv-fs-h3) !important;
  line-height: 1.35;
  margin-top: var(--pv-space-xl);
  margin-bottom: var(--pv-space-md);
  color: var(--md-default-fg-color);
}

[data-md-color-scheme="slate"] .md-typeset h3 {
  color: #CBD5E1; /* clearly lighter than body secondary text */
}

.md-typeset {
  font-size: var(--pv-fs-body);
  line-height: 1.8;  /* increased from 1.7 for dense technical content */
}

/* Body text in dark mode — lifted to #CBD5E1, significantly more readable than dim gray */
[data-md-color-scheme="slate"] .md-typeset {
  color: #CBD5E1;
}

[data-md-color-scheme="slate"] .md-typeset p,
[data-md-color-scheme="slate"] .md-typeset li,
[data-md-color-scheme="slate"] .md-typeset dd {
  color: #CBD5E1;
}

.md-typeset .md-content__button {
  color: var(--md-default-fg-color--lighter);
}

/* ── Header — Top Bar ─────────────────────────────────────── */
.md-header {
  background-color: var(--pv-header-bg) !important;
  color: var(--md-default-fg-color);
  box-shadow: none;
  border-bottom: 1px solid var(--pv-header-border);
}

.md-header[data-md-component="header"] {
  background-color: var(--pv-header-bg) !important;
}

.md-header__inner {
  padding: 0 var(--pv-space-md);
}

.md-header__title {
  color: var(--md-default-fg-color);
}

.md-header__topic {
  color: var(--md-default-fg-color);
}

.md-header__button {
  color: var(--md-default-fg-color);
}

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

/* Search input */
.md-search__input {
  background-color: var(--md-default-fg-color--lightest);
}

/* ── Sidebar — Nav ────────────────────────────────────────── */
/* Global width removed to prevent mobile drawer overlap. Defined in desktop media query below. */

/* Custom minimal scrollbar for sidebar */
.md-sidebar__scrollwrap::-webkit-scrollbar {
  width: 4px;
}
.md-sidebar__scrollwrap::-webkit-scrollbar-thumb {
  background-color: rgba(255,255,255,0.08);
  border-radius: 4px;
}
.md-sidebar__scrollwrap:hover::-webkit-scrollbar-thumb {
  background-color: rgba(255,255,255,0.15);
}

/* Section headers (Level 0-4, Tools, Resources) */
.md-nav__item--nested > .md-nav__link,
.md-sidebar--primary .md-nav__title {
  font-weight: 700; /* Increased to 700 to make it bolder */
  font-size: var(--pv-fs-small);
  color: var(--md-default-fg-color);
  padding: var(--pv-space-sm) var(--pv-space-md);
  padding-left: 0px !important; /* Pulled completely flush left */
  border-radius: var(--pv-radius-sm);
  transition: background var(--pv-transition-fast) ease;
}

.md-nav__item--nested > .md-nav__link:hover {
  background: var(--md-default-fg-color--lightest);
}

/* Active section header */
.md-nav__item--nested .md-nav__toggle:checked ~ .md-nav__link {
  color: var(--md-accent-fg-color);
}

/* Sidebar child items */
.md-nav__item .md-nav__link {
  font-size: var(--pv-fs-small);
  padding: 6px var(--pv-space-md);
  border-radius: var(--pv-radius-sm);
  transition: background var(--pv-transition-fast) ease;
}

.md-nav__item .md-nav__link:hover {
  background: var(--md-default-fg-color--lightest);
}

/* Active sidebar page — subtle indicator */
.md-nav__item .md-nav__link--active,
.md-nav__item--active > .md-nav__link {
  background: rgba(103, 232, 249, 0.05); /* very subtle */
  color: var(--md-accent-fg-color);
  font-weight: 500; /* reduced from 600 */
  border-left: 2px solid var(--md-accent-fg-color); /* reduced from 3px */
  border-radius: 0 var(--pv-radius-sm) var(--pv-radius-sm) 0;
  padding-left: calc(var(--pv-space-md) - 2px);
}

/* Sidebar nested indentation (Primary Sidebar Only) */
.md-sidebar--primary .md-nav__item .md-nav__item .md-nav__link {
  padding-left: 32px !important; /* Pushed significantly right for deep hierarchy distinction */
}

.md-sidebar--primary .md-nav__item .md-nav__item .md-nav__item .md-nav__link {
  padding-left: 48px !important;
}

/* Active nested item indentation fix (Primary Sidebar Only) */
.md-sidebar--primary .md-nav__item .md-nav__item .md-nav__link--active,
.md-sidebar--primary .md-nav__item .md-nav__item.md-nav__item--active > .md-nav__link {
  padding-left: 30px !important; /* 2px less to account for the border-left */
}

/* ── Sidebar section-to-section spacing ────────────────── */
/* Every .md-nav__item--section gets consistent vertical gap */
.md-nav__item--section {
  margin-top: var(--pv-space-sm);
}
/* Remove margin from first section so Home → Level 0 doesn't gap extra */
.md-nav__item--section:first-of-type {
  margin-top: 0;
}

/* ── TOC — Right Sidebar ──────────────────────────────────── */
.md-sidebar--secondary {
  width: 12rem;
}

.md-nav--secondary {
  border-left: 1px solid var(--md-default-fg-color--lightest);
}

.md-nav--secondary .md-nav__list {
  border-left: none;
}

/* TOC items */
.md-nav--secondary .md-nav__item .md-nav__link {
  font-size: var(--pv-fs-small);
  border-left: 2px solid transparent;
  padding: 4px var(--pv-space-md);
  color: var(--md-default-fg-color--light);
  transition: color var(--pv-transition-fast) ease, border-color var(--pv-transition-fast) ease;
}

/* ── TOC spacing & hierarchy ────────────────────────── */
.md-nav--secondary .md-nav__item {
  margin-top: 6px;
  margin-bottom: 6px;
}

/* Nested TOC items — indent under parent */
.md-nav--secondary .md-nav__item .md-nav {
  padding-left: 14px;
}

/* Active TOC item — left accent border */
.md-nav--secondary .md-nav__item .md-nav__link--active,
.md-nav--secondary .md-nav__link--passive:hover,
.md-nav--secondary .md-nav__link:hover {
  color: var(--pv-toc-active);
  border-left-color: var(--pv-toc-active);
}

.md-nav--secondary .md-nav__item--active > .md-nav__link {
  color: var(--pv-toc-active);
  border-left-color: var(--pv-toc-active);
  font-weight: 500;
  background: transparent;
}

/* TOC active via scrollspy (toc.follow) */
[data-md-component="toc"] .md-nav__link--active {
  color: var(--pv-toc-active) !important;
  border-left-color: var(--pv-toc-active) !important;
}

/* ── Cards Grid ────────────────────────────────────────────── */
.md-typeset .grid.cards {
  grid-gap: var(--pv-space-md);
}

.md-typeset .grid.cards > ul > li,
.md-typeset .grid.cards > ol > li,
.md-typeset .grid.cards > li {
  border-radius: var(--pv-radius-lg);
  padding: var(--pv-space-lg);
  background: var(--md-default-fg-color--lightest);
  border: 1px solid rgba(255,255,255,0.04);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform var(--pv-transition-normal) ease,
              box-shadow var(--pv-transition-normal) ease,
              border-color var(--pv-transition-normal) ease;
}

.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid.cards > ol > li:hover,
.md-typeset .grid.cards > li:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.04), 0 0 15px rgba(0, 240, 255, 0.15);
  border-color: rgba(0, 240, 255, 0.3);
}

/* Card icon tiles */
.md-typeset .grid.cards .twemoji,
.md-typeset .grid.cards .md-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--pv-radius-sm);
  background: var(--md-accent-fg-color--transparent);
  margin-right: var(--pv-space-sm);
}

/* Domain coverage grid — compact */
.md-typeset .grid.cards > ul:has(li) {
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
}

.md-typeset .grid.cards > ul > li:has(.twemoji) {
  text-align: center;
  padding: var(--pv-space-md);
  border-radius: var(--pv-radius-md);
}

/* ── Homepage Search Hero ──────────────────────────────────── */
.pv-hero-search {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  max-width: 420px;
  margin: var(--pv-space-lg) auto var(--pv-space-lg);
  padding: 8px 18px;
  background: var(--md-default-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 9999px;
  color: var(--md-default-fg-color--light);
  font-size: var(--pv-fs-body);
  cursor: pointer;
  transition: box-shadow var(--pv-transition-normal) ease,
              border-color var(--pv-transition-normal) ease,
              transform var(--pv-transition-fast) ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.pv-hero-search:hover {
  border-color: var(--md-accent-fg-color);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  transform: translateY(-1px);
}

.pv-hero-search:active {
  transform: scale(0.98);
}

.pv-hero-search-icon {
  display: flex;
  align-items: center;
  color: var(--md-default-fg-color--lighter);
  flex-shrink: 0;
}

.pv-hero-search-icon svg {
  width: 18px;
  height: 18px;
}

.pv-hero-search span {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pv-hero-search-hint {
  flex: 0;
  font-size: var(--pv-fs-xs);
  color: var(--md-default-fg-color--lighter);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.pv-hero-search-hint kbd {
  display: inline-block;
  padding: 1px 5px;
  font-size: var(--pv-fs-xs);
  font-family: inherit;
  background: var(--md-default-fg-color--lightest);
  border-radius: 3px;
  border: 1px solid var(--md-default-fg-color--lighter);
  margin: 0 1px;
}

/* ── Homepage vertical rhythm ──────────────────────────────── */
/* Spacing scale: 8/16/24/32/48 */
/* Hero search → H1 → subtitle → first callout — consistent spacing */

/* Hero block sits outside <main>, so its parent needs the same
   horizontal constraints as .md-grid (max-width: 61rem + auto margins) */
.md-container:has(.pv-hero-search) > .md-typeset {
  max-width: 61rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.2rem;
  padding-right: 1.2rem;
}

/* Hero→H1: the hero is in {% block hero %} outside <main>, so structural
   margins from .md-main__inner (1.5rem) and .md-content__inner (.6rem) add
   ~34px on top of hero's margin-bottom. Collapse them when hero is present. */
.md-container:has(.pv-hero-search) .md-main__inner {
  margin-top: 0;
}

.md-container:has(.pv-hero-search) .md-content__inner {
  padding-top: 0;
}

/* Theme adds an empty ::before (6.4px) on .md-content__inner for the edit-link
   layout. When no edit link exists, this creates extra space. Suppress it. */
.md-container:has(.pv-hero-search) .md-content__inner::before {
  display: none;
}

/* Hero→H1: distinct section (~24px from hero margin-bottom alone) */
/* H1→subtitle: tightly related (H1 margin-bottom: 24px → keep default) */
/* Subtitle→first callout: distinct section (~32px via adjacent combinators) */

/* Adjacent hr/.admonition pairs get consistent distinct-section spacing */
.md-typeset hr + .admonition,
.md-typeset hr + details {
  margin-top: var(--pv-space-xl);
}

.md-typeset .admonition + hr,
.md-typeset details + hr {
  margin-top: var(--pv-space-xl);
}

/* ── Admonitions / Callouts (soft borderless background-tint) ──── */
.md-typeset .admonition,
.md-typeset details {
  border-radius: var(--pv-radius-md);
  font-size: 15px;
  border: none;
  border-left: 4px solid var(--md-primary-fg-color);
  background: var(--md-default-fg-color--lightest);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

/* Theme-specific left-border colors */
.md-typeset .admonition.info,
.md-typeset details.info {
  border-left-color: var(--md-primary-fg-color);
}

.md-typeset .admonition.tip,
.md-typeset details.tip {
  border-left-color: #2e7d32;
}

.md-typeset .admonition.warning,
.md-typeset details.warning {
  border-left-color: #ed6c02;
}

.md-typeset .admonition.note,
.md-typeset details.note {
  border-left-color: var(--md-accent-fg-color);
}

.md-typeset .admonition.success,
.md-typeset details.success {
  border-left-color: #2e7d32;
}

.md-typeset .admonition.danger,
.md-typeset details.danger {
  border-left-color: #d32f2f;
}

/* ── Callout title — fix icon overlap (shared component fix) ── */
/* Use flexbox layout so icon and text never touch/overlap */
.md-typeset .admonition > .admonition-title,
.md-typeset details > .admonition-title,
.md-typeset details > summary {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent !important;
  color: var(--md-default-fg-color);
  font-weight: 600;
  font-size: var(--pv-fs-small);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: var(--pv-space-md) var(--pv-space-md) 0;
  margin: 0;
  border: none;
  box-shadow: none;
  position: relative;
}

/* Pull the ::before icon out of absolute positioning into flex flow */
.md-typeset .admonition > .admonition-title::before,
.md-typeset details > .admonition-title::before,
.md-typeset details > summary::before {
  position: static !important;
  display: inline-block;
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  top: auto;
  left: auto;
}

/* Info title */
.md-typeset .admonition.info > .admonition-title,
.md-typeset details.info > .admonition-title,
.md-typeset details.info > summary {
  color: var(--md-primary-fg-color);
}

/* Tip title */
.md-typeset .admonition.tip > .admonition-title,
.md-typeset details.tip > .admonition-title,
.md-typeset details.tip > summary {
  color: #2e7d32;
}

/* Warning title */
.md-typeset .admonition.warning > .admonition-title,
.md-typeset details.warning > .admonition-title,
.md-typeset details.warning > summary {
  color: #ed6c02;
}

/* Note title */
.md-typeset .admonition.note > .admonition-title,
.md-typeset details.note > .admonition-title,
.md-typeset details.note > summary {
  color: var(--md-accent-fg-color);
}

/* Success title */
.md-typeset .admonition.success > .admonition-title,
.md-typeset details.success > .admonition-title,
.md-typeset details.success > summary {
  color: #2e7d32;
}

/* Danger title */
.md-typeset .admonition.danger > .admonition-title,
.md-typeset details.danger > .admonition-title,
.md-typeset details.danger > summary {
  color: #d32f2f;
}

/* Content area inside callout — no extra background */
.md-typeset .admonition > *:not(.admonition-title),
.md-typeset details > *:not(.admonition-title):not(summary) {
  padding: var(--pv-space-sm) var(--pv-space-md) var(--pv-space-md);
}

.md-typeset details > summary ~ * {
  padding: var(--pv-space-sm) var(--pv-space-md) var(--pv-space-md);
}

/* ── Tables ────────────────────────────────────────────────── */
.md-typeset table:not([class]) {
  border-radius: var(--pv-radius-md);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

/* Match header and body cell padding exactly so columns align */
.md-typeset table:not([class]) th,
.md-typeset table:not([class]) td {
  padding: var(--pv-space-md);
  border: none;
}

.md-typeset table:not([class]) tr:nth-child(even) {
  background-color: var(--md-default-fg-color--lightest);
}

.md-typeset table:not([class]) th {
  background-color: transparent;
  color: var(--md-accent-fg-color);
  font-weight: 700;
  font-size: 13px;      /* slightly larger than before for readability */
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding-bottom: 12px;
}

.md-typeset table:not([class]) td {
  font-size: 15px;
  color: var(--md-default-fg-color);
  line-height: 1.6;
}

/* Improve table contrast in dark mode */
[data-md-color-scheme="slate"] .md-typeset table:not([class]) th {
  color: #67E8F9;
  border-bottom-color: rgba(103, 232, 249, 0.15);
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) td {
  color: #CBD5E1;  /* slightly brighter than body text for table data */
}

/* ── Breadcrumbs (navigation.path) ─────────────────────────── */
.md-path {
  font-size: var(--pv-fs-small);
  margin-bottom: var(--pv-space-sm);
}

.md-path .md-path__item {
  color: var(--md-default-fg-color--light);
}

.md-path .md-path__link {
  color: var(--md-default-fg-color--light);
  transition: color var(--pv-transition-fast) ease;
}

.md-path .md-path__link:hover {
  color: var(--md-accent-fg-color);
}

/* ── Footer Nav ────────────────────────────────────────────── */
.md-footer__inner {
  padding: var(--pv-space-md) 0;
}

.md-footer-meta {
  background-color: var(--md-primary-fg-color);
}

/* ── Micro-interactions ────────────────────────────────────── */
/* Button hover */
.md-typeset .md-button {
  transition: background var(--pv-transition-fast) ease,
              transform var(--pv-transition-fast) ease;
}

.md-typeset .md-button:hover {
  transform: translateY(-1px);
}

.md-typeset .md-button:active {
  transform: scale(0.98);
}

/* Link hover */
.md-typeset a {
  transition: color var(--pv-transition-fast) ease;
}

/* Sidebar toggle chevron animation */
.md-nav__toggle ~ .md-nav__link .md-nav__icon {
  transition: transform var(--pv-transition-normal) ease;
}

.md-nav__toggle:checked ~ .md-nav__link .md-nav__icon {
  transform: rotate(90deg);
}

/* Smooth expand/collapse for sidebar sections */
.md-nav__toggle ~ .md-nav {
  transition: opacity var(--pv-transition-normal) ease,
              transform var(--pv-transition-normal) ease;
}

/* Tabbed content transitions */
.md-typeset .tabbed-set {
  border-radius: var(--pv-radius-md);
}

.md-typeset .tabbed-set > .tabbed-labels {
  font-size: 14px;
}

/* ── Responsive adjustments ────────────────────────────────── */
@media screen and (max-width: 76.2344em) {
  .md-search {
    min-width: auto;
  }
  .pv-hero-search {
    max-width: 320px;
  }
}

@media screen and (min-width: 76.25em) {
  .md-search {
    min-width: 260px;
  }
  .md-sidebar--primary {
    width: 14rem;
  }
  .md-sidebar--secondary {
    width: 12rem;
  }
}

/* ── Dark mode adjustments (Readability Overhaul) ─────────── */
[data-md-color-scheme="slate"] {
  --pv-toc-active: #67E8F9;
  --pv-header-bg: rgba(15, 23, 42, 0.85);
  --pv-header-border: rgba(255,255,255,0.06);

  /* Background: lifted from #0A0F1C to #0F172A — easier on eyes for long reading */
  --md-default-bg-color: #0F172A;

  /* Body text: warm near-white — NOT pure white (avoids halation on dark screens) */
  --md-default-fg-color: #E2E8F0;
  --md-default-fg-color--light: #94A3B8;
  --md-default-fg-color--lighter: #475569;
  --md-default-fg-color--lightest: rgba(255,255,255,0.04);

  /* Primary / accent — soften cyan for text use, keep vivid for UI chrome */
  --md-primary-fg-color: #6366F1;
  --md-accent-fg-color: #67E8F9;        /* softer cyan vs #00F0FF — easier on eyes */
  --md-accent-fg-color--transparent: rgba(103, 232, 249, 0.1);

  /* Typeset link color — use softer accent */
  --md-typeset-a-color: #67E8F9;
}

[data-md-color-scheme="slate"] .md-header {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ── Hero Section (Premium & Compact) ──────────────────────── */
.pv-hero {
  position: relative;
  background: radial-gradient(circle at top right, rgba(99, 102, 241, 0.15) 0%, transparent 40%),
              radial-gradient(circle at bottom left, rgba(103, 232, 249, 0.08) 0%, transparent 40%),
              linear-gradient(to bottom, transparent 80%, var(--md-default-bg-color) 100%); /* Smooth fade into content */
  border-bottom: none; /* Removed hard border for smoother transition */
  padding: 40px 0 30px 0; /* Reduced from 80px/60px by ~40% */
  margin-bottom: var(--pv-space-lg);
  overflow: hidden;
}

[data-md-color-scheme="default"] .pv-hero {
  background: radial-gradient(circle at top right, rgba(99, 102, 241, 0.1) 0%, transparent 40%),
              radial-gradient(circle at bottom left, rgba(0, 240, 255, 0.05) 0%, transparent 40%),
              linear-gradient(to bottom, transparent 80%, var(--md-default-bg-color) 100%);
  border-bottom: none;
}

.pv-hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.pv-hero-content {
  max-width: 800px;
  z-index: 1;
}

.pv-hero-content p {
  font-size: 1.15rem; /* slightly smaller to fit compact hero */
  color: var(--md-default-fg-color--light);
  line-height: 1.6;
  margin-bottom: var(--pv-space-lg); /* reduced from xl */
}

.pv-hero-buttons {
  display: flex;
  gap: var(--pv-space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.pv-hero-buttons .md-button {
  font-size: 1rem;
  padding: 12px 24px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  transition: all var(--pv-transition-normal) ease;
}

.pv-hero-buttons .md-button--primary {
  background: var(--md-primary-fg-color);
  color: white;
  border: none;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.pv-hero-buttons .md-button--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6), 0 0 15px rgba(0, 240, 255, 0.3);
  background: #4F46E5;
}

.pv-hero-buttons .md-button--primary svg {
  fill: currentColor;
  width: 20px;
  height: 20px;
  transition: transform var(--pv-transition-normal) ease;
}

.pv-hero-buttons .md-button--primary:hover svg {
  transform: translateX(4px);
}

.pv-hero-buttons .md-button:not(.md-button--primary) {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
[data-md-color-scheme="default"] .pv-hero-buttons .md-button:not(.md-button--primary) {
  background: rgba(0, 0, 0, 0.03);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.pv-hero-buttons .md-button:not(.md-button--primary):hover {
  background: rgba(255, 255, 255, 0.1);
}
[data-md-color-scheme="default"] .pv-hero-buttons .md-button:not(.md-button--primary):hover {
  background: rgba(0, 0, 0, 0.05);
}

/* ── Onboarding Banner ─────────────────────────────────────── */
.pv-onboarding-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--pv-space-md);
  background: linear-gradient(145deg, rgba(99, 102, 241, 0.1), rgba(0, 240, 255, 0.05));
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--pv-radius-lg);
  padding: var(--pv-space-lg);
  margin-top: var(--pv-space-xl);
  margin-bottom: var(--pv-space-xl);
}

.pv-onboarding-icon {
  background: var(--md-primary-fg-color);
  color: white;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

.pv-onboarding-icon svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.pv-onboarding-content {
  display: flex;
  flex-direction: column;
}

.pv-onboarding-content strong {
  font-size: 1.1rem;
  color: var(--md-default-fg-color);
  margin-bottom: 4px;
}

.pv-onboarding-content p {
  margin: 0;
  color: var(--md-default-fg-color--light);
  line-height: 1.6;
}

[data-md-color-scheme="slate"] .pv-hero-search {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.08);
}

[data-md-color-scheme="slate"] .pv-hero-search:hover {
  border-color: var(--md-accent-fg-color);
}

[data-md-color-scheme="slate"] .md-nav__item .md-nav__link--active,
[data-md-color-scheme="slate"] .md-nav__item--active > .md-nav__link {
  background: rgba(99, 133, 242, 0.15);
}

[data-md-color-scheme="slate"] .md-footer-meta {
  background-color: #0B1120;
  border-top: 1px solid rgba(255,255,255,0.06);
}

/* ── Table of Contents (TOC) Refinement ────────────────────── */
[data-md-color-scheme="slate"] .md-sidebar--secondary .md-nav--secondary {
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--pv-radius-md);
  padding: var(--pv-space-md) var(--pv-space-sm);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.md-sidebar--secondary .md-nav__item {
  padding: 2px 0;
}

.md-sidebar--secondary .md-nav__link {
  border-radius: var(--pv-radius-sm);
  padding: 4px 8px;
  transition: all 0.2s ease;
  font-size: 0.85rem;
}

.md-sidebar--secondary .md-nav__link:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--md-default-fg-color);
}

.md-sidebar--secondary .md-nav__link[data-md-state="active"],
.md-sidebar--secondary .md-nav__link--active {
  background: rgba(103, 232, 249, 0.08);
  color: var(--md-accent-fg-color);
  font-weight: 500;
}

/* ── Light mode adjustments ────────────────────────────────── */
[data-md-color-scheme="default"] {
  --pv-header-bg: var(--md-default-bg-color);
  --pv-header-border: rgba(0,0,0,0.08);
}

[data-md-color-scheme="default"] .md-nav__item .md-nav__link--active,
[data-md-color-scheme="default"] .md-nav__item--active > .md-nav__link {
  background: rgba(99, 133, 242, 0.1);
}

/* ── Custom Logo Sizing & Header Tweaks ────────────────────── */
/* Hide the redundant 'Zero2Root' text next to the logo */
.md-header__title .md-header__topic:first-child {
  display: none !important;
}

/* Drastically increase logo size (Desktop only) */
.md-header__button.md-logo {
  display: block !important; /* Force logo to show on mobile instead of text */
}

.md-header__button.md-logo img {
  height: 2.2rem; /* Normal size for mobile so it fits the navbar */
  width: auto;
  max-height: none;
  display: block;
}

@media screen and (min-width: 76.25em) {
  .md-header__button.md-logo img {
    height: 4.5rem; /* Massive size for desktop */
    margin-top: -16px; /* Hang over the edges */
    margin-left: -10px;
    position: relative;
    z-index: 100;
  }
}

/* Hide 'Made with Material for MkDocs' */
.md-copyright {
  font-size: 0 !important;
}
.md-copyright__highlight {
  font-size: 0.65rem !important;
}