/* Birka Docs — Custom Styling to Match Main Site */

/* Import Inter font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ============================================
   ROOT VARIABLES — DARK THEME (DEFAULT)
   ============================================ */
:root {
  /* Main site colors */
  --md-primary-fg-color: #6366f1;
  --md-primary-fg-color--light: #818cf8;
  --md-primary-fg-color--dark: #4f46e5;
  --md-accent-fg-color: #0ea5e9;
  --md-accent-fg-color--transparent: rgba(14, 165, 233, 0.1);
  
  /* Dark theme backgrounds */
  --md-default-bg-color: #000000;
  --md-default-fg-color: rgb(212 212 216);
  --md-default-fg-color--light: rgb(161 161 170);
  --md-default-fg-color--lighter: rgb(113 113 122);
  --md-default-fg-color--lightest: rgb(82 82 91);
  
  /* Code (inline и блоки): светлее фона страницы */
  --md-code-bg-color: rgb(39 39 42);
  --md-code-fg-color: rgb(244 244 245);
  
  /* Borders */
  --md-typeset-table-color: rgba(255, 255, 255, 0.05);
  --md-typeset-table-color--light: rgba(255, 255, 255, 0.1);
  
  /* Custom variables matching main site */
  --bg-primary: #000000;
  --bg-secondary: rgb(24 24 27);
  --bg-tertiary: rgb(18 18 20);
  --bg-hover: rgb(28 28 32);
  --border-primary: rgb(39 39 42);
  --border-secondary: rgb(63 63 70);
  --border-hover: rgb(82 82 91);
  --text-primary: rgb(244 244 245);
  --text-secondary: rgb(196 196 206);
  --text-tertiary: rgb(145 145 155);
}

/* ============================================
   LIGHT THEME OVERRIDES
   ============================================ */
[data-md-color-scheme="default"] {
  --md-default-bg-color: #ffffff;
  --md-default-fg-color: rgb(55 65 81);
  --md-default-fg-color--light: rgb(75 85 99);
  --md-default-fg-color--lighter: rgb(107 114 128);
  --md-default-fg-color--lightest: rgb(156 163 175);
  
  /* Code: темнее фона страницы */
  --md-code-bg-color: rgb(226 232 240);
  --md-code-fg-color: rgb(17 24 39);
  
  --md-typeset-table-color: rgba(0, 0, 0, 0.05);
  --md-typeset-table-color--light: rgba(0, 0, 0, 0.1);
  
  --bg-primary: #ffffff;
  --bg-secondary: rgb(249 250 251);
  --bg-tertiary: rgb(243 244 246);
  --bg-hover: rgb(243 244 246);
  --border-primary: rgb(229 231 235);
  --border-secondary: rgb(209 213 219);
  --border-hover: rgb(156 163 175);
  --text-primary: rgb(17 24 39);
  --text-secondary: rgb(55 65 81);
  --text-tertiary: rgb(75 85 99);
}

/* ============================================
   GLOBAL STYLES
   ============================================ */
* {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 0.9rem;
}

/* ============================================
   HEADER / NAVBAR
   ============================================ */
.md-header {
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(39, 39, 42, 0.5);
  box-shadow: none;
}

[data-md-color-scheme="default"] .md-header {
  background-color: rgba(255, 255, 255, 0.8);
  border-bottom: 1px solid rgba(229, 231, 235, 0.5);
}

.md-header__title {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.025em;
}

.md-header__button {
  color: rgb(161 161 170);
  transition: color 0.2s ease;
}

/* Логотип не подсвечиваем целиком — только ссылка под курсором */
.md-header__button:hover:not(.md-header__logo-text) {
  color: rgb(244 244 245);
}

[data-md-color-scheme="default"] .md-header__button {
  color: rgb(75 85 99);
}

[data-md-color-scheme="default"] .md-header__button:hover:not(.md-header__logo-text) {
  color: rgb(17 24 39);
}

/* ============================================
   SIDEBAR / NAVIGATION
   ============================================ */
.md-sidebar {
  background-color: transparent;
}

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

/* Убираем лишние отступы у section-items (Material добавляет margin сверху) */
.md-nav--primary .md-nav__item--section {
  margin-top: 0 !important;
}

/* ---- Скрытие / раскрытие вложенной nav ---- */
.md-nav--primary .md-nav__item--nested > nav {
  display: none !important;
}

.md-nav--primary .md-nav__item--nested > input:checked ~ nav {
  display: block !important;
}

/* ---- div.md-nav__container (реальная структура в Material v9+) ---- */
/* Контейнер: flex-строка, без лишнего padding */
.md-nav--primary .md-nav__item--nested > .md-nav__container {
  display: flex !important;
  align-items: stretch;
  padding: 0 !important;
  margin: 0.05rem 0;
  border-radius: 0.4rem;
  overflow: hidden;
}

/* Ссылка-заголовок раздела — занимает основное место */
.md-nav--primary .md-nav__item--nested > .md-nav__container > a.md-nav__link {
  flex: 1;
  min-width: 0;
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.35rem 0 0.35rem 0.75rem;
  margin: 0;
  border-radius: 0;
}

/* label-кнопка переключения внутри контейнера */
.md-nav--primary .md-nav__item--nested > .md-nav__container > label {
  display: flex !important;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 2rem;
  cursor: pointer;
  color: var(--text-tertiary);
  transition: color 0.15s ease;
  border-radius: 0;
  margin: 0;
  padding: 0;
}

.md-nav--primary .md-nav__item--nested > .md-nav__container > label:hover {
  color: var(--text-primary);
  background-color: var(--bg-hover);
}

/* Скрываем SVG иконку из label */
.md-nav--primary .md-nav__item--nested > .md-nav__container > label .md-nav__icon,
.md-nav--primary .md-nav__item--nested > .md-nav__container > label svg {
  display: none !important;
}

/* CSS-стрелка › / ↓ через ::after на label */
.md-nav--primary .md-nav__item--nested > .md-nav__container > label::after {
  content: '';
  display: block;
  width: 0.38rem;
  height: 0.38rem;
  border-right: 1.5px solid currentColor;
  border-top: 1.5px solid currentColor;
  transform: rotate(45deg);       /* › вправо — свёрнуто */
  transition: transform 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Стрелка ↓ при раскрытии */
.md-nav--primary .md-nav__toggle:checked ~ .md-nav__container > label::after {
  transform: rotate(135deg);      /* ↓ вниз — раскрыто */
  color: var(--md-primary-fg-color--light);
}

/* hover на весь контейнер */
.md-nav--primary .md-nav__item--nested > .md-nav__container:hover {
  background-color: var(--bg-hover);
}

.md-nav--primary .md-nav__item--nested > .md-nav__container:hover > a.md-nav__link {
  color: var(--text-primary);
}

/* Активный контейнер */
.md-nav--primary .md-nav__toggle:checked ~ .md-nav__container > a.md-nav__link,
.md-nav--primary .md-nav__item--active > .md-nav__container > a.md-nav__link {
  color: var(--md-primary-fg-color--light);
}

/* ---- Ссылки навигации ---- */
.md-nav__link {
  color: var(--text-secondary);
  transition: background-color 0.15s ease, color 0.15s ease;
  border-radius: 0.4rem;
  padding: 0.35rem 0.75rem;
  margin: 0.05rem 0;
}

.md-nav__link:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

.md-nav__link--active {
  background-color: rgba(99, 102, 241, 0.1);
  color: #6366f1;
  font-weight: 600;
}

.md-nav__link--active:hover {
  background-color: rgba(99, 102, 241, 0.15);
}

/* Подпункты (уровень 2) — сдвиг вправо относительно заголовка раздела */
.md-nav--primary .md-nav__item--nested > input:checked ~ nav .md-nav__link {
  padding-left: 1.5rem;
}
/* Вложенный список навигации (Material v9: data-md-level="2") — отступ всего блока */
.md-nav--primary nav[data-md-level="2"] .md-nav__list {
  padding-left: 1.5rem;
}
.md-nav--primary nav[data-md-level="2"] .md-nav__link {
  padding-left: 1rem;
}

/* ============================================
   MAIN CONTENT AREA
   ============================================ */
.md-content {
  background-color: transparent;
}

.md-content__inner {
  padding-top: 2rem;
  padding-bottom: 4rem;
}

.md-typeset {
  color: var(--text-secondary);
  line-height: 1.6;
}

.md-typeset h1 {
  color: var(--text-primary);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.md-typeset h2 {
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.025em;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-primary);
}

.md-typeset h3 {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.0rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.md-typeset h4 {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

.md-typeset p {
  margin-bottom: 1rem;
}

.md-typeset a {
  color: #6366f1;
  text-decoration: none;
  transition: color 0.2s ease;
}

.md-typeset a:hover {
  color: #818cf8;
  text-decoration: underline;
}

/* ============================================
   CODE BLOCKS
   ============================================ */
.md-typeset code {
  background-color: var(--md-code-bg-color);
  color: var(--md-code-fg-color);
  padding: 0.2em 0.4em;
  border-radius: 0.375rem;
  font-size: 0.85em;
  border: 1px solid var(--border-primary);
}

.md-typeset pre {
  background-color: var(--md-code-bg-color);
  border: 1px solid var(--border-primary);
  border-radius: 0.75rem;
  padding: 1rem;
  overflow-x: auto;
}

.md-typeset pre > code {
  background-color: transparent;
  border: none;
  padding: 0;
}

.highlight {
  border-radius: 0.75rem;
  overflow: hidden;
}

/* ============================================
   TABLES
   ============================================ */
.md-typeset table:not([class]) {
  border: 1px solid var(--border-primary);
  border-radius: 0.75rem;
  overflow: hidden;
  background-color: var(--bg-secondary);
  font-size: 0.85rem;
}

.md-typeset table:not([class]) th {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-secondary);
}

.md-typeset table:not([class]) td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-primary);
}

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

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

/* ============================================
   ADMONITIONS
   ============================================ */
.md-typeset .admonition {
  border-radius: 0.75rem;
  border: 1px solid var(--border-primary);
  background-color: var(--bg-secondary);
  padding: 1rem;
  margin: 1.5rem 0;
}

.md-typeset .admonition-title {
  font-weight: 600;
  margin-bottom: 0.5rem;
  padding-left: 2rem;
  position: relative;
}

.md-typeset .admonition-title::before {
  position: absolute;
  left: 0;
  font-size: 1.1rem;
}

/* Note */
.md-typeset .admonition.note {
  border-left: 4px solid #0ea5e9;
}

.md-typeset .admonition.note > .admonition-title {
  color: #0ea5e9;
}

/* Warning */
.md-typeset .admonition.warning {
  border-left: 4px solid #f59e0b;
}

.md-typeset .admonition.warning > .admonition-title {
  color: #f59e0b;
}

/* Danger */
.md-typeset .admonition.danger {
  border-left: 4px solid #ef4444;
}

.md-typeset .admonition.danger > .admonition-title {
  color: #ef4444;
}

/* Success */
.md-typeset .admonition.success {
  border-left: 4px solid #10b981;
}

.md-typeset .admonition.success > .admonition-title {
  color: #10b981;
}

/* Info */
.md-typeset .admonition.info {
  border-left: 4px solid #6366f1;
}

.md-typeset .admonition.info > .admonition-title {
  color: #6366f1;
}

/* ============================================
   BUTTONS
   ============================================ */
.md-button {
  background-color: #6366f1;
  color: white;
  border-radius: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-weight: 600;
  font-size: 0.85rem;
  transition: all 0.2s ease;
  border: none;
}

.md-button:hover {
  background-color: #4f46e5;
  transform: translateY(-1px);
  box-shadow: 0 4px 6px rgba(99, 102, 241, 0.3);
}

.md-button--primary {
  background-color: white;
  color: black;
}

[data-md-color-scheme="default"] .md-button--primary {
  background-color: #6366f1;
  color: white;
}

.md-button--primary:hover {
  background-color: rgb(229 231 235);
}

[data-md-color-scheme="default"] .md-button--primary:hover {
  background-color: #4f46e5;
}

/* ============================================
   SEARCH
   ============================================ */
.md-search__input {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 0.5rem;
  color: var(--text-primary);
}

.md-search__input::placeholder {
  color: var(--text-tertiary);
}

.md-search__input:hover {
  border-color: var(--border-hover);
}

.md-search__input:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* ============================================
   FOOTER
   ============================================ */
.md-footer {
  background-color: transparent;
  border-top: 1px solid var(--border-primary);
  color: var(--text-tertiary);
}

/* Блок с копирайтом `2026 Birka...` скрыт по требованию */
.md-footer-meta {
  display: none !important;
}

.md-footer-meta__inner {
  padding-top: 0;
  padding-bottom: 0;
  margin: 0;
  max-width: 100%;
  align-items: center;
  row-gap: 0;
  font-size: 0.75rem;
}

.md-footer__link {
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.md-footer__link:hover {
  color: var(--text-primary);
}

/* Текстовый логотип в шапке: Бирка — Документация */
.md-header__logo-text,
.md-nav__logo-text {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  font-weight: 500;
}
.md-header__logo-text .md-header__link,
.md-nav__logo-text .md-nav__link {
  color: var(--md-primary-fg-color);
  text-decoration: none;
}
.md-header__logo-text .md-header__link:hover,
.md-nav__logo-text .md-nav__link:hover {
  color: var(--md-primary-fg-color--light);
}
.md-header__logo-sep,
.md-nav__logo-sep {
  color: var(--md-default-fg-color--lighter);
  pointer-events: none;
}

/* ============================================
   TABS
   ============================================ */
.md-tabs {
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(39, 39, 42, 0.5);
  box-shadow: none;
}

[data-md-color-scheme="default"] .md-tabs {
  background-color: rgba(255, 255, 255, 0.8);
  border-bottom: 1px solid rgba(229, 231, 235, 0.5);
}

.md-tabs__link {
  color: var(--text-secondary);
  font-weight: 500;
  transition: all 0.2s ease;
}

.md-tabs__link:hover {
  color: var(--text-primary);
}

.md-tabs__link--active {
  color: #6366f1;
  font-weight: 600;
}

/* Light palette: Material использует data-md-color-scheme="slate" для "Светлой темы"
   (у неактивных вкладок без override может не хватать контраста на белом фоне). */
[data-md-color-scheme="slate"] .md-tabs {
  background-color: rgba(0, 0, 0, 0.8);
  border-bottom: 1px solid rgba(39, 39, 42, 0.5);
}

[data-md-color-scheme="slate"] .md-tabs__link {
  color: var(--text-secondary);
}

[data-md-color-scheme="slate"] .md-tabs__link:hover {
  color: var(--text-primary);
}

/* ============================================
   TOC (Table of Contents)
   ============================================ */
.md-nav--secondary .md-nav__link {
  font-size: 0.8125rem;
  padding: 0.375rem 0.75rem;
}

.md-nav--secondary .md-nav__link--active {
  color: #6366f1;
  font-weight: 600;
  border-left: 2px solid #6366f1;
  padding-left: calc(0.75rem - 2px);
}

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

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

::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.md-content__inner > * {
  animation: fadeIn 0.5s ease-out;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media screen and (max-width: 76.1875em) {
  .md-nav--primary .md-nav__link {
    padding: 0.625rem 1rem;
  }
}

/* ============================================
   Заголовки h2, h3 и h4 — синий акцент (вся документация)
   ============================================ */
.md-typeset h2 {
  margin-top: 2rem;
  margin-bottom: 0.6rem;
  padding: 0.5rem 0.75rem;
  padding-left: 0.75rem;
  background-color: rgba(79, 70, 229, 0.18);
  border-left: 4px solid var(--md-primary-fg-color--dark);
  border-radius: 0 0.375rem 0.375rem 0;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  border-bottom: none;
}

.md-typeset h3,
.md-typeset h4 {
  margin-top: 1.5rem;
  margin-bottom: 0.6rem;
  padding: 0.5rem 0.75rem;
  padding-left: 0.75rem;
  background-color: rgba(99, 102, 241, 0.12);
  border-left: 4px solid var(--md-primary-fg-color);
  border-radius: 0 0.375rem 0.375rem 0;
  font-weight: 600;
  color: var(--text-primary);
}

.md-typeset h3 {
  margin-top: 1.75rem;
  font-size: 1.02rem;
}

[data-md-color-scheme="default"] .md-typeset h2 {
  background-color: rgba(79, 70, 229, 0.12);
  border-left-color: #4338ca;
}

[data-md-color-scheme="default"] .md-typeset h3,
[data-md-color-scheme="default"] .md-typeset h4 {
  background-color: rgba(99, 102, 241, 0.08);
  border-left-color: var(--md-primary-fg-color--dark);
}

/* ============================================
   CUSTOM ENHANCEMENTS
   ============================================ */

/* Gradient text for main heading */
.md-typeset h1:first-of-type {
  background: linear-gradient(90deg, #ffffff 0%, #a5b4fc 50%, #818cf8 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Keep inline code in the main h1 readable.
   Gradient headings use transparent text fill, which hides `code` labels. */
.md-typeset h1:first-of-type code {
  -webkit-text-fill-color: var(--md-code-fg-color);
  color: var(--md-code-fg-color);
}

[data-md-color-scheme="default"] .md-typeset h1:first-of-type {
  background: linear-gradient(90deg, #1e293b 0%, #6366f1 50%, #4f46e5 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Card-like sections */
.md-content .md-typeset > div,
.md-content .md-typeset > section {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

/* Smooth transitions */
* {
  transition-property: background-color, border-color, color;
  transition-duration: 0.2s;
  transition-timing-function: ease-in-out;
}

/* Override for elements that shouldn't transition */
a, button, input, textarea {
  transition: all 0.2s ease;
}

/* MathJax (Arithmatex): читаемость на узких экранах */
.md-typeset mjx-container {
  overflow-x: auto;
  overflow-y: hidden;
  max-width: 100%;
}

.md-typeset mjx-container[display="true"] {
  margin: 1em 0;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}