/*
 * VAIT Project Management System - Custom CSS
 *
 * This file contains custom CSS classes and overrides that supplement Tailwind CSS.
 * Loaded separately from tailwind.css via Propshaft asset pipeline.
 *
 * Order of CSS loading:
 * 1. tailwind.css (from app/assets/builds/) - Tailwind utilities
 * 2. application.css (this file) - Custom classes and overrides
 */

/* VAIT Brand Colors - Custom CSS Classes for Variant B */

/* Dark header colors */
.bg-dark-header {
  background-color: #101E3A;
}

.border-dark-header {
  border-color: #475783;
}

/* Primary colors */
.bg-primary-light {
  background-color: #D6E4FF;
}

.text-primary-hover {
  color: #85AFFF;
}

.text-primary-dark {
  color: #0047E6;
}

/* Utility: transitions for header */
.header-transition {
  transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Apply Manrope font globally */
body {
  font-family: "Manrope", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* Prevent page width jump when scrollbar appears/disappears */
html {
  overflow-y: scroll;
}

/* Prose styles for markdown content */
.prose {
  line-height: 1.75;
}
.prose p {
  margin-top: 1.25em;
  margin-bottom: 1.25em;
}
.prose p:first-child {
  margin-top: 0;
}
.prose p:last-child {
  margin-bottom: 0;
}
.prose h1 {
  font-size: 2em;
  font-weight: 700;
  margin-top: 0;
  margin-bottom: 0.8em;
  line-height: 1.2;
}
.prose h2 {
  font-size: 1.5em;
  font-weight: 600;
  margin-top: 1.5em;
  margin-bottom: 0.8em;
  line-height: 1.3;
}
.prose h3 {
  font-size: 1.25em;
  font-weight: 600;
  margin-top: 1.5em;
  margin-bottom: 0.6em;
  line-height: 1.4;
}
.prose ul, .prose ol {
  margin-top: 1.25em;
  margin-bottom: 1.25em;
  padding-left: 1.5em;
}
.prose ul {
  list-style-type: disc;
}
.prose ol {
  list-style-type: decimal;
}
.prose li {
  margin-top: 0.5em;
  margin-bottom: 0.5em;
}
.prose code {
  background-color: #f3f4f6;
  padding: 0.2em 0.4em;
  border-radius: 0.25em;
  font-size: 0.875em;
}
.prose pre {
  background-color: #1f2937;
  color: #e5e7eb;
  padding: 1em;
  border-radius: 0.5em;
  overflow-x: auto;
  margin-top: 1.5em;
  margin-bottom: 1.5em;
}
.prose pre code {
  background-color: transparent;
  padding: 0;
  color: inherit;
}
.prose blockquote {
  border-left: 4px solid #3b82f6;
  padding: 1rem 1.25rem;
  margin-left: 0;
  margin-top: 1.5em;
  margin-bottom: 1.5em;
  background-color: #f8fafc;
  border-radius: 0 0.375rem 0.375rem 0;
  color: #475569;
  font-style: italic;
}
.prose a {
  color: #2563eb;
  text-decoration: underline;
}
.prose a:hover {
  color: #1d4ed8;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1.5em;
  margin-bottom: 1.5em;
}
.prose th, .prose td {
  border: 1px solid #e5e7eb;
  padding: 0.5em 0.75em;
  text-align: left;
}
.prose th {
  background-color: #f9fafb;
  font-weight: 600;
}
.prose hr {
  border: none;
  border-top: 1px solid #e5e7eb;
  margin-top: 2em;
  margin-bottom: 2em;
}

/* Search highlights */
mark {
  background-color: #fef08a;
  padding: 0.1em 0.2em;
  border-radius: 0.2em;
}

/* Form validation styles */
.validation-error {
  border-color: #ef4444 !important;
}
.validation-error:focus {
  border-color: #ef4444 !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2) !important;
}
.validation-message {
  color: #dc2626;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

/* Shake animation for invalid fields */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}
.validation-error {
  animation: shake 0.3s ease-in-out;
}

/* Tiptap Editor Styles */
.ProseMirror {
  outline: none;
  min-height: 250px;
  padding: 1rem;
}
.ProseMirror > * + * {
  margin-top: 0.75em;
}
.ProseMirror p.is-editor-empty:first-child::before {
  color: #9ca3af;
  content: attr(data-placeholder);
  float: left;
  height: 0;
  pointer-events: none;
}
.ProseMirror h1 {
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1.2;
}
.ProseMirror h2 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.3;
}
.ProseMirror h3 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
}
.ProseMirror ul {
  list-style-type: disc;
  padding-left: 1.5rem;
}
.ProseMirror ol {
  list-style-type: decimal;
  padding-left: 1.5rem;
}
.ProseMirror li {
  margin-top: 0.25em;
  margin-bottom: 0.25em;
}
.ProseMirror blockquote {
  border-left: 4px solid #3b82f6;
  padding: 0.75rem 1rem;
  margin: 1em 0;
  background-color: #f8fafc;
  border-radius: 0 0.375rem 0.375rem 0;
  color: #475569;
  font-style: italic;
}
.ProseMirror hr {
  border: none;
  border-top: 2px solid #e5e7eb;
  margin: 1.5em 0;
}
.ProseMirror pre {
  background-color: #1f2937;
  color: #e5e7eb;
  padding: 0.75rem 1rem;
  border-radius: 0.375rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  overflow-x: auto;
}
.ProseMirror code {
  background-color: #f3f4f6;
  padding: 0.125rem 0.25rem;
  border-radius: 0.25rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875em;
}
.ProseMirror pre code {
  background: none;
  padding: 0;
  color: inherit;
}
.ProseMirror a {
  color: #2563eb;
  text-decoration: underline;
  cursor: pointer;
}
.ProseMirror a:hover {
  color: #1d4ed8;
}
.ProseMirror strong {
  font-weight: 600;
}
.ProseMirror em {
  font-style: italic;
}

/* Tiptap Table Styles */
.ProseMirror table.tiptap-table {
  border-collapse: collapse;
  width: 100%;
  margin: 1em 0;
  table-layout: fixed;
  overflow: hidden;
}

.ProseMirror table.tiptap-table td,
.ProseMirror table.tiptap-table th {
  border: 1px solid #e5e7eb;
  padding: 0.5rem 0.75rem;
  vertical-align: top;
  box-sizing: border-box;
  position: relative;
  min-width: 50px;
}

.ProseMirror table.tiptap-table th {
  background-color: #f9fafb;
  font-weight: 600;
  text-align: left;
}

.ProseMirror table.tiptap-table td > *,
.ProseMirror table.tiptap-table th > * {
  margin: 0;
}

/* Выделение ячейки при фокусе */
.ProseMirror table.tiptap-table .selectedCell {
  background-color: #dbeafe;
}

.ProseMirror table.tiptap-table .selectedCell::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background-color: rgba(59, 130, 246, 0.1);
  pointer-events: none;
  z-index: 1;
}

/* Resize handle для колонок */
.ProseMirror .column-resize-handle {
  position: absolute;
  right: -2px;
  top: 0;
  bottom: -2px;
  width: 4px;
  background-color: #3b82f6;
  cursor: col-resize;
  z-index: 10;
}

/* Курсор при изменении размера */
.ProseMirror.resize-cursor {
  cursor: col-resize;
}

/* Tiptap TaskList (Checklist) Styles */
.ProseMirror ul[data-type="taskList"] {
  list-style: none;
  padding-left: 0;
  margin: 1em 0;
}

.ProseMirror ul[data-type="taskList"] li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0.5em 0;
}

.ProseMirror ul[data-type="taskList"] li > label {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.ProseMirror ul[data-type="taskList"] li > label input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  cursor: pointer;
  accent-color: #1C60FF;
}

.ProseMirror ul[data-type="taskList"] li > div {
  flex: 1;
}

.ProseMirror ul[data-type="taskList"] li > div p {
  margin: 0;
}

/* Перечёркнутый текст для выполненных задач */
.ProseMirror ul[data-type="taskList"] li[data-checked="true"] > div {
  text-decoration: line-through;
  color: #9ca3af;
}

/* Стили для просмотра статьи (prose) */
.prose ul[data-type="taskList"] {
  list-style: none;
  padding-left: 0;
  margin: 1.25em 0;
}

.prose ul[data-type="taskList"] li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0.5em 0;
}

.prose ul[data-type="taskList"] li > label {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.prose ul[data-type="taskList"] li > label input[type="checkbox"] {
  width: 1.125rem;
  height: 1.125rem;
  cursor: pointer;
  accent-color: #1C60FF;
}

.prose ul[data-type="taskList"] li > div {
  flex: 1;
}

.prose ul[data-type="taskList"] li > div p {
  margin: 0;
}

.prose ul[data-type="taskList"] li[data-checked="true"] > div {
  text-decoration: line-through;
  color: #9ca3af;
}

/* ============================================
   VAIT Design System - Variant B
   Custom Utility Classes

   ВАЖНО: Tailwind v4 НЕ генерирует классы из config автоматически.
   Все semantic токены (primary, error, success, neutral, dark)
   определены вручную здесь.

   При добавлении нового цвета:
   1. Добавить в tailwind.config.js (для IDE autocomplete)
   2. Добавить классы сюда (bg, text, border, hover)
   3. Пересобрать: bin/rails tailwindcss:build
   4. Проверить: grep "новый-класс" app/assets/builds/tailwind.css
   ============================================ */

/* --- Primary Colors (VAIT Blue #1C60FF) --- */
.bg-primary-50 { background-color: #EFF5FF; }
.bg-primary-100 { background-color: #D6E4FF; }
.bg-primary-200 { background-color: #ADCAFF; }
.bg-primary-300 { background-color: #85AFFF; }
.bg-primary-400 { background-color: #5C95FF; }
.bg-primary-500 { background-color: #1C60FF; }
.bg-primary-600 { background-color: #0047E6; }
.bg-primary-700 { background-color: #0036B3; }
.bg-primary-800 { background-color: #002680; }
.bg-primary-900 { background-color: #00174D; }

.text-primary-50 { color: #EFF5FF; }
.text-primary-100 { color: #D6E4FF; }
.text-primary-200 { color: #ADCAFF; }
.text-primary-300 { color: #85AFFF; }
.text-primary-400 { color: #5C95FF; }
.text-primary-500 { color: #1C60FF; }
.text-primary-600 { color: #0047E6; }
.text-primary-700 { color: #0036B3; }
.text-primary-800 { color: #002680; }
.text-primary-900 { color: #00174D; }

.border-primary-50 { border-color: #EFF5FF; }
.border-primary-100 { border-color: #D6E4FF; }
.border-primary-200 { border-color: #ADCAFF; }
.border-primary-300 { border-color: #85AFFF; }
.border-primary-400 { border-color: #5C95FF; }
.border-primary-500 { border-color: #1C60FF; }
.border-primary-600 { border-color: #0047E6; }
.border-primary-700 { border-color: #0036B3; }
.border-primary-800 { border-color: #002680; }
.border-primary-900 { border-color: #00174D; }

.hover\:bg-primary-50:hover { background-color: #EFF5FF; }
.hover\:bg-primary-100:hover { background-color: #D6E4FF; }
.hover\:bg-primary-200:hover { background-color: #ADCAFF; }
.hover\:bg-primary-300:hover { background-color: #85AFFF; }
.hover\:bg-primary-400:hover { background-color: #5C95FF; }
.hover\:bg-primary-500:hover { background-color: #1C60FF; }
.hover\:bg-primary-600:hover { background-color: #0047E6; }
.hover\:bg-primary-700:hover { background-color: #0036B3; }
.hover\:bg-primary-800:hover { background-color: #002680; }
.hover\:bg-primary-900:hover { background-color: #00174D; }

.hover\:text-primary-300:hover { color: #85AFFF; }
.hover\:text-primary-500:hover { color: #1C60FF; }
.hover\:text-primary-600:hover { color: #0047E6; }

/* --- Error Colors (Red) --- */
.bg-error-light { background-color: #FEE2E2; }
.bg-error { background-color: #EF4444; }
.bg-error-dark { background-color: #DC2626; }

.text-error-light { color: #FEE2E2; }
.text-error { color: #EF4444; }
.text-error-dark { color: #DC2626; }

.border-error-light { border-color: #FEE2E2; }
.border-error { border-color: #EF4444; }
.border-error-dark { border-color: #DC2626; }

.hover\:bg-error:hover { background-color: #EF4444; }
.hover\:bg-error-dark:hover { background-color: #DC2626; }

.hover\:text-error:hover { color: #EF4444; }
.hover\:text-error-dark:hover { color: #DC2626; }

/* --- Success Colors (Green) --- */
.bg-success-light { background-color: #D1FAE5; }
.bg-success { background-color: #10B981; }
.bg-success-dark { background-color: #059669; }

.text-success-light { color: #D1FAE5; }
.text-success { color: #10B981; }
.text-success-dark { color: #059669; }

.border-success-light { border-color: #D1FAE5; }
.border-success { border-color: #10B981; }
.border-success-dark { border-color: #059669; }

.hover\:bg-success:hover { background-color: #10B981; }
.hover\:bg-success-dark:hover { background-color: #059669; }

.hover\:text-success:hover { color: #10B981; }

/* --- Warning Colors (Amber) --- */
.bg-warning-light { background-color: #FEF3C7; }
.bg-warning { background-color: #F59E0B; }
.bg-warning-dark { background-color: #D97706; }

.text-warning-light { color: #FEF3C7; }
.text-warning { color: #F59E0B; }
.text-warning-dark { color: #D97706; }

.border-warning-light { border-color: #FEF3C7; }
.border-warning { border-color: #F59E0B; }
.border-warning-dark { border-color: #D97706; }

.hover\:bg-warning:hover { background-color: #F59E0B; }
.hover\:bg-warning-dark:hover { background-color: #D97706; }

/* --- Info Colors (Cyan) --- */
.bg-info-light { background-color: #CFFAFE; }
.bg-info { background-color: #06B6D4; }
.bg-info-dark { background-color: #0891B2; }

.text-info-light { color: #CFFAFE; }
.text-info { color: #06B6D4; }
.text-info-dark { color: #0891B2; }

.border-info-light { border-color: #CFFAFE; }
.border-info { border-color: #06B6D4; }
.border-info-dark { border-color: #0891B2; }

.hover\:bg-info:hover { background-color: #06B6D4; }
.hover\:bg-info-dark:hover { background-color: #0891B2; }

/* --- Neutral Colors (Gray) - недостающие шейды --- */
.bg-neutral-400 { background-color: #A3A3A3; }
.bg-neutral-500 { background-color: #737373; }
.bg-neutral-600 { background-color: #525252; }
.bg-neutral-700 { background-color: #404040; }
.bg-neutral-800 { background-color: #262626; }
.bg-neutral-900 { background-color: #171717; }

.text-neutral-300 { color: #D4D4D4; }
.text-neutral-400 { color: #A3A3A3; }
.text-neutral-500 { color: #737373; }
.text-neutral-600 { color: #525252; }
.text-neutral-700 { color: #404040; }
.text-neutral-800 { color: #262626; }
.text-neutral-900 { color: #171717; }

.border-neutral-400 { border-color: #A3A3A3; }
.border-neutral-500 { border-color: #737373; }
.border-neutral-600 { border-color: #525252; }
.border-neutral-700 { border-color: #404040; }
.border-neutral-800 { border-color: #262626; }
.border-neutral-900 { border-color: #171717; }

.hover\:bg-neutral-200:hover { background-color: #E5E5E5; }
.hover\:bg-neutral-300:hover { background-color: #D4D4D4; }
.hover\:bg-neutral-400:hover { background-color: #A3A3A3; }

/* --- Dark Colors (VAIT Dark #101E3A) --- */
.bg-dark-50 { background-color: #F0F2F5; }
.bg-dark-100 { background-color: #D9DDE6; }
.bg-dark-200 { background-color: #B3BACE; }
.bg-dark-300 { background-color: #8C98B5; }
.bg-dark-400 { background-color: #66759D; }
.bg-dark-500 { background-color: #3F5284; }
.bg-dark-600 { background-color: #30405C; }
.bg-dark-700 { background-color: #242F45; }
.bg-dark-800 { background-color: #181F2E; }
.bg-dark-900 { background-color: #0C1017; }

.text-dark-50 { color: #F0F2F5; }
.text-dark-100 { color: #D9DDE6; }
.text-dark-200 { color: #B3BACE; }
.text-dark-300 { color: #8C98B5; }
.text-dark-400 { color: #66759D; }
.text-dark-500 { color: #3F5284; }
.text-dark-600 { color: #30405C; }
.text-dark-700 { color: #242F45; }
.text-dark-800 { color: #181F2E; }
.text-dark-900 { color: #0C1017; }

.border-dark-50 { border-color: #F0F2F5; }
.border-dark-100 { border-color: #D9DDE6; }
.border-dark-200 { border-color: #B3BACE; }
.border-dark-300 { border-color: #8C98B5; }
.border-dark-400 { border-color: #66759D; }
.border-dark-500 { border-color: #3F5284; }
.border-dark-600 { border-color: #30405C; }
.border-dark-700 { border-color: #242F45; }
.border-dark-800 { border-color: #181F2E; }
.border-dark-900 { border-color: #0C1017; }

.hover\:bg-dark-600:hover { background-color: #30405C; }
.hover\:bg-dark-700:hover { background-color: #242F45; }

/* --- Universal Hover Text Colors --- */
.hover\:text-white:hover { color: #ffffff; }

/* --- Shadows (Variant B) --- */
.shadow-b {
  box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
}

.shadow-md-b {
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

.shadow-lg-b {
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* --- Focus Ring Colors --- */
.focus\:ring-primary-500:focus {
  --tw-ring-opacity: 1;
  --tw-ring-color: rgb(28 96 255 / var(--tw-ring-opacity));
}

.focus\:border-primary-500:focus {
  border-color: #1C60FF;
}

.focus\:ring-error:focus {
  --tw-ring-opacity: 1;
  --tw-ring-color: rgb(239 68 68 / var(--tw-ring-opacity));
}

.focus\:border-error:focus {
  border-color: #EF4444;
}

/* ============================================
   Sidebar Styles
   ============================================ */

/* Базовые стили для иконок — фиксированный размер ВСЕГДА */
.sidebar-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  font-size: 1.125rem;
  flex-shrink: 0;
}

/* Текст пункта меню */
.sidebar-text {
  transition: opacity 0.3s, width 0.3s;
  white-space: nowrap;
}

/* Tooltip (скрыт по умолчанию) */
.sidebar-tooltip {
  display: none;
}

/* ===== Свёрнутое состояние ===== */

/* Скрыть текст */
.sidebar-collapsed .sidebar-text {
  opacity: 0;
  width: 0;
  overflow: hidden;
}

/* Центрировать ссылки */
.sidebar-collapsed .sidebar-link {
  justify-content: center;
  padding-left: 0;
  padding-right: 0;
  gap: 0;
}

/* Показать tooltip при hover */
.sidebar-collapsed .sidebar-link:hover .sidebar-tooltip {
  display: block;
  position: fixed;
  left: 76px;
  padding: 6px 12px;
  background-color: #1f2937;
  color: white;
  font-size: 0.875rem;
  white-space: nowrap;
  border-radius: 6px;
  pointer-events: none;
  z-index: 100;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

/* Header */
.sidebar-collapsed .sidebar-header {
  justify-content: center;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
}

/* Nav и footer */
.sidebar-collapsed .sidebar-nav,
.sidebar-collapsed .sidebar-footer {
  padding-left: 0.5rem;
  padding-right: 0.5rem;
}

/* Таймер */
.sidebar-collapsed .sidebar-timer {
  margin-left: 0.5rem;
  margin-right: 0.5rem;
  padding-left: 0;
  padding-right: 0;
  justify-content: center;
}

/* Overflow */
.sidebar-collapsed {
  overflow: hidden;
}

/* ============================================
   Collapsible Markdown Styles
   ============================================ */

/* Контейнер для collapsible markdown */
.collapsible-markdown-content {
  /* Убрать стили h2/h3 из .prose, так как они теперь в summary */
}

/* Секция collapsible */
.collapsible-section {
  margin-top: 1em;
  margin-bottom: 0.5em;
  border-left: 3px solid #E5E5E5;
  padding-left: 0;
}

.collapsible-section:first-child {
  margin-top: 0;
}

/* Уровень 2 (##) */
.collapsible-level-2 {
  border-left-color: #1C60FF;
}

/* Уровень 3 (###) */
.collapsible-level-3 {
  border-left-color: #85AFFF;
  margin-left: 1em;
}

/* Summary (заголовок) */
.collapsible-heading {
  display: flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.5em 0.75em;
  cursor: pointer;
  user-select: none;
  list-style: none;
  background-color: #F9FAFB;
  border-radius: 0.25em;
  transition: background-color 0.15s ease;
}

.collapsible-heading:hover {
  background-color: #F3F4F6;
}

.collapsible-heading::-webkit-details-marker {
  display: none;
}

.collapsible-heading::marker {
  display: none;
  content: "";
}

/* Иконка expand/collapse */
.collapsible-icon {
  font-size: 0.75em;
  color: #737373;
  flex-shrink: 0;
  width: 1em;
  text-align: center;
}

/* Заголовок h2 в summary */
.collapsible-heading-2 .collapsible-title {
  font-size: 1.25em;
  font-weight: 600;
  color: #3F5284;
}

/* Заголовок h3 в summary */
.collapsible-heading-3 .collapsible-title {
  font-size: 1.1em;
  font-weight: 600;
  color: #525252;
}

/* Контент внутри секции */
.collapsible-content {
  padding: 0.75em 1em 0.5em 1.5em;
}

/* Когда секция открыта */
.collapsible-section[open] > .collapsible-heading {
  background-color: #EFF5FF;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.collapsible-section[open] > .collapsible-content {
  border-top: 1px solid #E5E7EB;
  background-color: #FAFAFA;
  border-bottom-left-radius: 0.25em;
  border-bottom-right-radius: 0.25em;
}

/* Убрать margins из вложенных элементов в collapsible */
.collapsible-content > p:first-child,
.collapsible-content > ul:first-child,
.collapsible-content > ol:first-child {
  margin-top: 0;
}

.collapsible-content > p:last-child,
.collapsible-content > ul:last-child,
.collapsible-content > ol:last-child {
  margin-bottom: 0;
}

/* ============================================
   Code Block with Copy Button
   ============================================ */

/* Контейнер для блока кода с кнопкой */
.code-block-wrapper {
  position: relative;
  margin-top: 1.5em;
  margin-bottom: 1.5em;
}

/* Кнопка копирования */
.code-copy-button {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.625rem;
  background-color: rgba(55, 65, 81, 0.8);
  color: #d1d5db;
  font-size: 0.75rem;
  font-family: inherit;
  border: 1px solid rgba(75, 85, 99, 0.5);
  border-radius: 0.375rem;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s ease, background-color 0.2s ease, color 0.2s ease;
  z-index: 10;
}

/* Показываем кнопку при наведении на контейнер */
.code-block-wrapper:hover .code-copy-button {
  opacity: 1;
}

/* Hover состояние кнопки */
.code-copy-button:hover {
  background-color: rgba(75, 85, 99, 0.9);
  color: #f3f4f6;
}

/* Active состояние */
.code-copy-button:active {
  background-color: rgba(55, 65, 81, 1);
}

/* Состояние "Скопировано!" */
.code-copy-button.code-copy-success {
  background-color: rgba(16, 185, 129, 0.9);
  border-color: rgba(16, 185, 129, 0.5);
  color: white;
  opacity: 1;
}

/* Стили для pre внутри wrapper */
.code-block-wrapper pre {
  margin: 0;
  padding-top: 2.5rem;
}

/* Для prose контекста */
.prose .code-block-wrapper {
  margin-top: 1.5em;
  margin-bottom: 1.5em;
}

.prose .code-block-wrapper pre {
  margin-top: 0;
  margin-bottom: 0;
}

/* ============================================
   Video Embed Styles (YouTube, RuTube)
   ============================================ */

/* Wrapper для responsive видео */
.video-embed-wrapper {
  position: relative;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  margin: 1.5em 0;
  background-color: #1f2937;
  border-radius: 0.5rem;
  overflow: hidden;
}

.video-embed-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* В контексте ProseMirror редактора */
.ProseMirror .video-embed-wrapper {
  margin: 1em 0;
  cursor: default;
}

/* Выделение видео при фокусе в редакторе */
.ProseMirror .video-embed-wrapper.ProseMirror-selectednode {
  outline: 3px solid #3b82f6;
  outline-offset: 2px;
}

/* В prose (просмотр статьи) */
.prose .video-embed-wrapper {
  margin-top: 1.5em;
  margin-bottom: 1.5em;
}

/* Placeholder пока видео загружается */
.video-embed-wrapper::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M14.752 11.168l-3.197-2.132A1 1 0 0010 9.87v4.263a1 1 0 001.555.832l3.197-2.132a1 1 0 000-1.664z'/%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M21 12a9 9 0 11-18 0 9 9 0 0118 0z'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.5;
  z-index: 0;
}

/* Скрыть placeholder когда iframe загружен */
.video-embed-wrapper iframe {
  position: relative;
  z-index: 1;
}

/* Table of Contents (оглавление статьи) */
.article-toc {
  background-color: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}

.article-toc .toc-header {
  font-weight: 600;
  font-size: 0.875rem;
  color: #374151;
  margin-bottom: 0.75rem;
}

.article-toc .toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.article-toc .toc-list li {
  margin: 0.25rem 0;
}

.article-toc .toc-list a {
  color: #4b5563;
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.15s ease;
}

.article-toc .toc-list a:hover {
  color: #1C60FF;
}

/* Отступы для уровней заголовков */
.article-toc .toc-level-1 {
  padding-left: 0;
}

.article-toc .toc-level-2 {
  padding-left: 1rem;
}

.article-toc .toc-level-3 {
  padding-left: 2rem;
}

/* ============================================
   Sortable Sections (drag-and-drop)
   ============================================ */

/* Пустые вложенные списки скрыты по умолчанию */
.sortable-nested-list:empty {
  display: none;
}

/* При перетаскивании показываем пустые списки как drop zones */
.sortable-dragging .sortable-nested-list:empty {
  display: block;
  min-height: 24px;
  background-color: #f0f9ff;
  border: 2px dashed #93c5fd;
  border-radius: 0.375rem;
  margin-top: 0.25rem;
  transition: all 0.15s ease;
}

/* Подсветка при наведении на drop zone */
.sortable-dragging .sortable-nested-list:empty:hover {
  background-color: #dbeafe;
  border-color: #3b82f6;
}

/* Стиль для выбранного элемента */
.sortable-chosen {
  background-color: #f0f9ff !important;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  border-radius: 0.375rem;
}

/* Ghost элемент (место вставки) */
.sortable-ghost {
  opacity: 0.4;
}

/* ============================================
   Custom Select Arrow (серая стрелка как у checkbox-select)
   ============================================ */

.select-arrow {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1rem;
  padding-right: 2.25rem;
}