/* 
 * 🎓 Помощник первокурсника — CSS
 * Тема: Deep Ocean (темносиняя)
 * Версия: 1.0.3
 * Автор: [Ваш проект]
 * Дата: 2025-12-19
 */

/* ========== СБРОС И БАЗОВЫЕ СТИЛИ ========== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Цветовые переменные — основная тема: Deep Ocean */
  --color-bg-primary: #0b1525;
  --color-bg-secondary: #13243d;
  --color-bg-tertiary: #1a2d4d;
  --color-bg-card: #20385e;
  --color-bg-input: #2c4977;
  --color-bg-hover: #335388;
  --color-bg-active: #3b5998;

  --color-text-primary: #f0f4ff;
  --color-text-secondary: #a0b0cd;
  --color-text-tertiary: #7a8cb8;
  --color-text-disabled: #5a6c8a;

  --color-border: #3a5a8c;
  --color-border-light: #4a6a9c;

  --color-accent: #5a77a6;
  --color-accent-hover: #6a87b6;
  --color-accent-active: #7a97c6;

  --color-success: #4ade80;
  --color-warning: #facc15;
  --color-danger: #f87171;
  --color-info: #60a5fa;

  --color-category-scholarships: #ff9f43;
  --color-category-admission: #10b981;
  --color-category-dormitory: #8b5cf6;
  --color-category-study: #0ea5e9;
  --color-category-documents: #ec4899;
  --color-category-jobs: #f97316;

  /* Размеры */
  --space-xxs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-xxl: 48px;

  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-xxl: 24px;
  --font-size-h1: 28px;
  --font-size-h2: 24px;
  --font-size-h3: 20px;
  --font-size-h4: 18px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-xl: 0 12px 36px rgba(0, 0, 0, 0.4);

  /* Анимации */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Поддержка светлой темы */
.theme-light {
  --color-bg-primary: #f8fafc;
  --color-bg-secondary: #f1f5f9;
  --color-bg-tertiary: #e2e8f0;
  --color-bg-card: #ffffff;
  --color-bg-input: #f8fafc;
  --color-bg-hover: #f1f5f9;
  --color-bg-active: #e2e8f0;

  --color-text-primary: #1e293b;
  --color-text-secondary: #475569;
  --color-text-tertiary: #64748b;
  --color-text-disabled: #94a3b8;

  --color-border: #cbd5e1;
  --color-border-light: #e2e8f0;

  --color-accent: #3b5998;
  --color-accent-hover: #2c4977;
  --color-accent-active: #1a2d4d;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
}

/* Безопасные отступы для устройств с вырезом (notch) */
@supports (padding: max(0px)) {
  body {
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }

  .bottom-nav {
    padding-bottom: max(env(safe-area-inset-bottom), 0px);
  }
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Запрет масштабирования жестами (Mini App) */
body {
  touch-action: manipulation;
}

/* Скрытие скроллбара (но оставляем прокрутку) */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
}

/* ========== УТИЛИТЫ ========== */

.container {
  width: 100%;
  max-width: 768px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* ========== КНОПКИ ========== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--font-size-md);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  outline: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-active));
  color: white;
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--color-accent-hover), var(--color-accent));
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-hover);
}
.btn-secondary:active:not(:disabled) {
  background: var(--color-bg-active);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}
.btn-outline:hover:not(:disabled) {
  background: rgba(90, 119, 166, 0.1);
  border-color: var(--color-accent);
}
.btn-outline:active:not(:disabled) {
  background: rgba(90, 119, 166, 0.2);
}

.btn-danger {
  background: var(--color-danger);
  color: white;
}
.btn-danger:hover:not(:disabled) {
  opacity: 0.9;
}
.btn-danger:active:not(:disabled) {
  opacity: 0.85;
}

.btn-sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  transition: var(--transition-normal);
}
.icon-btn:hover {
  background: var(--color-bg-hover);
  transform: scale(1.05);
}

.text-btn {
  background: none;
  border: none;
  color: var(--color-accent);
  font-size: var(--font-size-sm);
  cursor: pointer;
  padding: 0;
}
.text-btn:hover {
  text-decoration: underline;
}

/* ========== НАВИГАЦИЯ ========== */

.app-header {
  background: var(--color-bg-secondary);
  padding: var(--space-md) var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.app-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.header-actions {
  display: flex;
  gap: var(--space-sm);
}

/* ========== ОСНОВНОЙ КОНТЕНТ ========== */

.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  padding-bottom: 72px; /* Высота bottom-nav + отступ */
}

.view {
  display: none;
  padding: var(--space-md) 0;
}

.view.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.view-content {
  max-width: 768px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.page-title {
  font-size: var(--font-size-h2);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.section-header h3,
.section-header h4 {
  font-size: var(--font-size-h3);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.section-link {
  color: var(--color-accent);
  font-size: var(--font-size-sm);
  text-decoration: none;
}
.section-link:hover {
  text-decoration: underline;
}

.divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-xl) 0;
}

/* ========== WELCOME BANNER ========== */

.welcome-banner {
  background: linear-gradient(135deg, var(--color-bg-tertiary), var(--color-bg-active));
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
}

.banner-content h2 {
  font-size: var(--font-size-xxl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.banner-content p {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ========== КАРТОЧКИ ВОПРОСОВ ========== */

.questions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.question-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border);
  text-decoration: none;
  color: inherit;
  display: block;
}

.question-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.question-card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-xs);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.question-card-meta {
  display: flex;
  gap: var(--space-sm);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-sm);
}

.question-card-meta i {
  font-size: 10px;
}

.category-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Цвета категорий */
.category-badge[data-category="scholarships"] { background: rgba(255, 159, 67, 0.2); color: #ff9f43; }
.category-badge[data-category="admission"] { background: rgba(16, 185, 129, 0.2); color: #10b981; }
.category-badge[data-category="dormitory"] { background: rgba(139, 92, 246, 0.2); color: #8b5cf6; }
.category-badge[data-category="study"] { background: rgba(14, 165, 233, 0.2); color: #0ea5e9; }
.category-badge[data-category="documents"] { background: rgba(236, 72, 153, 0.2); color: #ec4899; }
.category-badge[data-category="jobs"] { background: rgba(249, 115, 22, 0.2); color: #f97316; }

/* Скелетоны */
.skeleton-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.skeleton-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  to { left: 100%; }
}

.skeleton-card::after {
  content: '';
  display: block;
  width: 80%;
  height: 20px;
  background: var(--color-bg-input);
  margin-bottom: var(--space-sm);
  border-radius: var(--radius-sm);
}
.skeleton-card div:nth-child(2) { height: 16px; width: 60%; }
.skeleton-card div:nth-child(3) { height: 16px; width: 40%; margin-top: var(--space-xs); }

/* ========== КАТЕГОРИИ ========== */

.categories-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.category-badge {
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border);
}

.category-badge:hover {
  transform: scale(1.05);
  border-color: var(--color-accent);
}

.skeleton-badge {
  height: 32px;
  width: 100px;
  border-radius: var(--radius-full);
  background: var(--color-bg-input);
  position: relative;
  overflow: hidden;
}
.skeleton-badge::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: shimmer 1.5s infinite;
}

.categories-full-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.category-full-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border);
}

.category-full-item:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-hover);
}

.category-full-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.category-full-info h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xxs);
}
.category-full-info p {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.skeleton-category {
  height: 80px;
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}
.skeleton-category::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: shimmer 1.5s infinite;
}

/* ========== QUICK LINKS ========== */

.quick-links-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.quick-link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-lg) var(--space-md);
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border);
  text-align: center;
}

.quick-link-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.quick-link-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: var(--color-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--color-accent);
}

.quick-link-text {
  font-size: var(--font-size-md);
  font-weight: 600;
}

/* ========== ПОИСК ========== */

.search-bar-container {
  margin-bottom: var(--space-lg);
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: var(--space-md);
  color: var(--color-text-tertiary);
  pointer-events: none;
  font-size: 18px;
}

#search-input {
  width: 100%;
  padding: var(--space-md) var(--space-md) var(--space-md) calc(var(--space-md) * 2.5);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-bg-input);
  color: var(--color-text-primary);
  font-size: var(--font-size-md);
  outline: none;
  transition: all var(--transition-normal);
}

#search-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(90, 119, 166, 0.2);
}

.search-clear-btn {
  position: absolute;
  right: var(--space-md);
  background: none;
  border: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  transition: var(--transition-normal);
}
.search-clear-btn:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-hover);
}

.search-results {
  margin-bottom: var(--space-lg);
}

.search-placeholder {
  text-align: center;
  color: var(--color-text-tertiary);
  font-style: italic;
  padding: var(--space-xl) 0;
}

.search-result-item {
  display: block;
  padding: var(--space-md);
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border);
}

.search-result-item:hover {
  border-color: var(--color-accent);
}

.search-result-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.search-result-excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ========== ВОПРОС ========== */

.question-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.back-button {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-normal);
}
.back-button:hover {
  background: var(--color-bg-hover);
}

.question-title {
  font-size: var(--font-size-h1);
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
  flex: 1;
}

.question-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-xxs);
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.question-content {
  font-size: var(--font-size-md);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.question-content p {
  margin-bottom: var(--space-md);
}

.question-content h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin: var(--space-xl) 0 var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border-light);
}

.question-content h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin: var(--space-lg) 0 var(--space-sm);
}

.question-content ul,
.question-content ol {
  margin: var(--space-md) 0;
  padding-left: var(--space-xl);
}

.question-content li {
  margin-bottom: var(--space-xs);
}

.question-content strong {
  font-weight: 700;
  color: var(--color-text-primary);
}

.question-content em {
  font-style: italic;
  color: var(--color-text-primary);
}

.question-content a {
  color: var(--color-accent);
  text-decoration: underline;
}
.question-content a:hover {
  opacity: 0.8;
}

/* Форматирование для тегов [img_n] */
.question-content .embedded-image {
  display: block;
  margin: var(--space-lg) auto;
  max-width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.question-actions {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.action-btn {
  flex: 1;
  padding: var(--space-sm);
  font-size: var(--font-size-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
}

.like-btn {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}
.like-btn.liked {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: white;
}
.like-btn.liked i {
  color: white !important;
}

.share-btn {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

/* Список похожих вопросов */
.questions-list {
  list-style: none;
}

.questions-list .question-item {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}
.questions-list .question-item:last-child {
  border-bottom: none;
}

.questions-list .question-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
  color: inherit;
}
.questions-list .question-link:hover .question-title {
  color: var(--color-accent);
}

.questions-list .question-number {
  background: var(--color-bg-tertiary);
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.questions-list .question-title {
  font-size: var(--font-size-md);
  font-weight: 500;
  flex: 1;
}

.skeleton-list-item {
  height: 56px;
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  position: relative;
  overflow: hidden;
}
.skeleton-list-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: shimmer 1.5s infinite;
}

/* ========== ПРОФИЛЬ ========== */

.profile-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.profile-avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  background: var(--color-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: var(--color-accent);
}

.profile-info h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-xxs);
}
.profile-info p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-md);
}

.profile-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.stat-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  border: 1px solid var(--color-border);
}

.stat-value {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-xxs);
}
.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.profile-section {
  margin-bottom: var(--space-lg);
}

.profile-section h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.activity-list {
  list-style: none;
}

.activity-item {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}
.activity-item:last-child {
  border-bottom: none;
}

.activity-text {
  font-size: var(--font-size-md);
  margin-bottom: var(--space-xxs);
}
.activity-time {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.skeleton-activity {
  height: 50px;
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}
.skeleton-activity::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: shimmer 1.5s infinite;
}

.settings-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.setting-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.setting-value {
  color: var(--color-text-secondary);
  font-size: var(--font-size-md);
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 24px;
}
.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-border);
  transition: .3s;
  border-radius: 24px;
}
.toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}
input:checked + .toggle-slider {
  background-color: var(--color-accent);
}
input:checked + .toggle-slider:before {
  transform: translateX(24px);
}

/* ========== АДМИНКА ========== */

.admin-header {
  margin-bottom: var(--space-lg);
}

.admin-header h2 {
  font-size: var(--font-size-h1);
  margin-bottom: var(--space-md);
}

.admin-stats-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.stat-box {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  border: 1px solid var(--color-border);
}

.stat-number {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
}
.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.admin-tabs {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.tab-btn {
  padding: var(--space-sm) var(--space-md);
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: var(--font-size-md);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
  border-bottom: 2px solid transparent;
}
.tab-btn:hover {
  color: var(--color-text-primary);
}
.tab-btn.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.tab-content {
  display: none;
}
.tab-content.active {
  display: block;
}

.admin-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.admin-search {
  flex: 1;
  min-width: 200px;
}

.admin-table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg-card);
}

.admin-table th,
.admin-table td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
}

.admin-table th {
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-bg-tertiary);
  position: sticky;
  top: 0;
}

.admin-table tr:last-child td {
  border-bottom: none;
}

.admin-table tr:hover {
  background: rgba(90, 119, 166, 0.05);
}

.loading-row {
  text-align: center;
  padding: var(--space-lg);
  color: var(--color-text-tertiary);
}

.action-buttons {
  display: flex;
  gap: var(--space-xs);
}

.action-btn-sm {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: none;
  cursor: pointer;
  transition: var(--transition-normal);
}
.action-btn-sm:hover {
  background: var(--color-bg-hover);
}
.action-btn-sm.edit-btn { color: var(--color-info); }
.action-btn-sm.delete-btn { color: var(--color-danger); }

.stats-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
  .stats-cards {
    grid-template-columns: 1fr 1fr;
  }
}

.stat-card-large {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
}

.stat-card-large h3 {
  margin-bottom: var(--space-md);
  font-size: var(--font-size-lg);
}

.export-section {
  margin-top: var(--space-lg);
}

.export-section h4 {
  margin-bottom: var(--space-md);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ========== МОДАЛЬНЫЕ ОКНА ========== */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-slow);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  width: 95%;
  max-width: 600px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal.active .modal-content {
  transform: scale(1);
}

.modal-header {
  padding: var(--space-md);
  background: var(--color-bg-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  font-size: var(--font-size-xl);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--color-text-secondary);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
}
.modal-close:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-tertiary);
}

.modal-body {
  padding: var(--space-md);
  overflow-y: auto;
  max-height: 70vh;
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: var(--font-size-md);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}
.form-group label.required::after {
  content: ' *';
  color: var(--color-danger);
}

.form-hint {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-xs);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-input);
  color: var(--color-text-primary);
  font-size: var(--font-size-md);
  outline: none;
  transition: all var(--transition-normal);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(90, 119, 166, 0.2);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23a0b0cd'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: flex-end;
}

/* ========== РЕДАКТОР ========== */

.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
  padding: var(--space-xs);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.editor-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: var(--transition-normal);
}
.editor-btn:hover {
  background: var(--color-bg-hover);
  color: var(--color-accent);
}
.editor-btn.active {
  background: var(--color-accent);
  color: white;
}

.editor-separator {
  width: 1px;
  height: 20px;
  background: var(--color-border);
  margin: 0 var(--space-xs);
}

.editor-preview {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-top: var(--space-md);
  border: 1px dashed var(--color-border);
}

.images-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.image-field {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.image-input {
  flex: 1;
}
.image-tag {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  padding-top: var(--space-sm);
  white-space: nowrap;
}
.remove-image-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-tertiary);
  color: var(--color-danger);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
}
.remove-image-btn:hover {
  background: var(--color-bg-hover);
  transform: scale(1.1);
}

/* ========== BOTTOM NAVIGATION ========== */

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--color-bg-secondary);
  display: flex;
  justify-content: space-around;
  padding: var(--space-sm) 0;
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xxs);
  width: 25%;
  padding: var(--space-xs) 0;
  text-decoration: none;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xs);
  transition: all var(--transition-normal);
}

.nav-item i {
  font-size: 20px;
}

.nav-item.active,
.nav-item:hover {
  color: var(--color-accent);
  transform: translateY(-2px);
}

/* Админка — только если отображается */
.admin-only {
  display: none;
}
.admin-only.active {
  display: flex;
}

/* ========== LOADING ========== */

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(11, 21, 37, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 3000;
  color: white;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-md);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ========== FOOTER ========== */

.app-footer {
  text-align: center;
  padding: var(--space-md);
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xs);
  margin-top: var(--space-xl);
}

/* ========== АДАПТИВНОСТЬ ========== */

@media (max-width: 768px) {
  :root {
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 24px;
  }

  .app-title { font-size: var(--font-size-lg); }
  .page-title { font-size: var(--font-size-h3); }
  .question-title { font-size: var(--font-size-xl); }

  .questions-grid {
    grid-template-columns: 1fr;
  }

  .quick-links-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .profile-stats {
    grid-template-columns: 1fr;
  }

  .admin-stats-summary {
    grid-template-columns: 1fr;
  }

  .modal-content {
    width: 98%;
    max-width: 500px;
  }
}

@media (max-width: 480px) {
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }

  .question-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .admin-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-search {
    min-width: auto;
  }

  .nav-item span {
    display: none;
  }
  .nav-item i {
    font-size: 24px;
  }
  .bottom-nav {
    padding: 8px 0;
  }
  .nav-item {
    width: 20%;
    padding: 4px 0;
  }
}

/* ========== ПЕЧАТЬ (на случай экспорта PDF) ========== */

@media print {
  .bottom-nav,
  .app-header,
  .modal,
  .loading-overlay,
  .admin-only,
  .form-actions,
  .question-actions {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  .question-content,
  .view-content {
    max-width: 100% !important;
    padding: 0 !important;
  }

  .embedded-image {
    page-break-inside: avoid;
  }

  h1, h2, h3 {
    page-break-after: avoid;
  }
}

/* ========== АНИМАЦИИ НАВИГАЦИИ ========== */

.view.fade-enter {
  opacity: 0;
  transform: translateX(20px);
}
.view.fade-enter-active {
  opacity: 1;
  transform: translateX(0);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}
.view.fade-exit {
  opacity: 1;
  transform: translateX(0);
}
.view.fade-exit-active {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

/* ========== ПОДДЕРЖКА ДЛЯ ТЕСТИРОВАНИЯ ========== */

.debug-grid {
  background: 
    linear-gradient(to right, rgba(255,0,0,0.1) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,0,0,0.1) 1px, transparent 1px);
  background-size: 8px 8px;
}

/* Конец файла */