/* =============================================
   TRASH_MATH — Page-specific styles
   ============================================= */

/* ===== HOME PAGE ===== */

/* Hero two-column layout */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.hero-content { max-width: 700px; }

/* Hero photo */
.hero-photo-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.hero-photo {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 480px;
  height: 540px;
  object-fit: cover;
  object-position: top center;
  border-radius: var(--radius-xl);
  box-shadow:
    0 20px 60px rgba(168, 200, 232, 0.4),
    0 0 0 6px rgba(255, 255, 255, 0.7);
  transition: transform 0.5s ease, border-radius 0.8s ease;
}
.hero-photo:hover {
  transform: scale(1.02) translateY(-5px);
  border-radius: var(--radius-2xl);
}

/* Decorative blobs behind photo */
.hero-photo-blob {
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  opacity: 0.25;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 0;
  animation: float 6s ease-in-out infinite;
}
.hero-photo-blob-2 {
  width: 280px;
  height: 280px;
  background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
  opacity: 0.3;
  transform: translate(-40%, -60%);
  animation-delay: -3s;
  animation-duration: 7s;
}
.hero-title {
  font-size: var(--font-size-hero);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-deeper) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}
.hero-subtitle strong {
  color: var(--text-primary);
  -webkit-text-fill-color: var(--text-primary);
}
.hero-actions { display: flex; gap: var(--space-md); flex-wrap: wrap; }

/* Old service-card / review styles removed — see V2 styles below */


/* Counter stats */
.counter-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  padding: var(--space-2xl) 0;
  color: white;
}
.counter-value {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  line-height: 1;
}
.counter-label {
  font-size: var(--font-size-sm);
  opacity: 0.8;
  margin-top: var(--space-xs);
}

/* ===== TASK BANK ===== */
.task-bank-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--space-lg);
}
.task-filter-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-lg));
  align-self: start;
  max-height: calc(100vh - var(--nav-height) - var(--space-lg) * 2);
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: transparent transparent;
}
.task-filter-sidebar:hover {
  scrollbar-color: rgba(0,0,0,0.15) transparent;
}
.task-filter-sidebar::-webkit-scrollbar { width: 4px; }
.task-filter-sidebar::-webkit-scrollbar-track { background: transparent; }
.task-filter-sidebar::-webkit-scrollbar-thumb {
  background: transparent;
  border-radius: 4px;
}
.task-filter-sidebar:hover::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,0.15);
}
.filter-group {
  margin-bottom: var(--space-lg);
}
.filter-group-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}
.filter-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-xs) 0;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  cursor: pointer;
}
.filter-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--primary-color);
}
.filter-checkbox .filter-label-text {
  flex: 1;
  min-width: 0;
  overflow-wrap: break-word;
  word-break: break-word;
}
.filter-checkbox .badge {
  flex-shrink: 0;
  margin-top: 1px;
}
.task-number-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-xs);
}
.task-number-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  background: none;
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  transition: transform var(--transition-base), background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
}
.task-number-btn:hover { border-color: var(--primary-color); color: var(--primary-dark); }
.task-number-btn.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

/* Task card */
.task-card {
  padding: var(--space-lg);
  overflow: hidden;
  word-break: break-word;
}
.task-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}
.task-card-number {
  background: var(--accent-color);
  color: var(--text-primary);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
}
.task-card-content {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}
.task-card-answer {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}
.task-card-answer input {
  flex: 1;
  max-width: 280px; width: 100%;
}

.answer-feedback {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  animation: scaleIn var(--transition-fast);
}
.answer-correct {
  background: var(--success-light);
  color: #2D7A54;
}
.answer-incorrect {
  background: var(--error-light);
  color: #A03030;
}

/* ===== GENERATOR ===== */
.generator-modes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}
.generator-mode-card {
  padding: var(--space-xl);
  text-align: center;
  cursor: pointer;
  transition: transform var(--transition-base), background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
}

.generator-mode-card.selected {
  border: 2px solid var(--primary-color);
  background: var(--primary-light);
}
.generator-mode-icon { font-size: 48px; margin-bottom: var(--space-md); }
.generator-timer {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-extrabold);
  text-align: center;
  color: var(--primary-dark);
  padding: var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  font-variant-numeric: tabular-nums;
}

/* ===== ARCHIVE ===== */
.archive-year-group {
  margin-bottom: var(--space-xl);
}
.archive-year-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 3px solid var(--primary-color);
  display: inline-block;
}

/* ===== MEDIA ===== */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
}
.media-card-thumb {
  aspect-ratio: 16/9;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  position: relative;
  overflow: hidden;
}
.media-card-thumb iframe {
  width: 100%;
  height: 100%;
  border: none;
}
.media-card-play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  font-size: 48px;
  color: white;
  cursor: pointer;
  transition: transform var(--transition-base), background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
}
.media-card-play:hover { background: rgba(0, 0, 0, 0.5); }

.media-viewer {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-lg);
  min-height: 60vh;
}
.media-player {
  aspect-ratio: 16/9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #000;
}
.media-player iframe { width: 100%; height: 100%; border: none; }

.comments-panel {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  max-height: 70vh;
}
.comments-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
}
.comment-item {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}
.comment-item .avatar { flex-shrink: 0; }
.comment-bubble {
  background: var(--bg-secondary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border-top-left-radius: var(--radius-xs);
}
.comment-author {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--primary-dark);
}
.comment-text { font-size: var(--font-size-sm); color: var(--text-primary); }
.comment-time { font-size: var(--font-size-xs); color: var(--text-muted); margin-top: 2px; }
.comment-input-area {
  padding: var(--space-md);
  border-top: 1px solid var(--border-light);
  display: flex;
  gap: var(--space-sm);
}
.comment-input-area input { flex: 1; }

/* ===== LOGIN/REGISTER ===== */
.auth-page {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  position: relative;
  overflow: hidden;
}
.auth-bg-circle {
  position: absolute;
  border-radius: var(--radius-circle);
  opacity: 0.15;
  z-index: 0;
}
.auth-bg-circle-1 { width: 400px; height: 400px; background: var(--accent-color); top: -100px; right: -100px; }
.auth-bg-circle-2 { width: 250px; height: 250px; background: var(--primary-color); bottom: -50px; left: -50px; }
.auth-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
}
.auth-title {
  text-align: center;
  margin-bottom: var(--space-xl);
}
.auth-toggle {
  text-align: center;
  margin-top: var(--space-lg);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}
.auth-toggle a { font-weight: var(--font-weight-semibold); }

/* ===== DASHBOARD ===== */
.dashboard-welcome {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}
.dashboard-welcome h2 { margin-bottom: var(--space-xs); }

.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}
.chart-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}
.chart-card canvas { max-height: 300px; }

.quick-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
}
.quick-link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  text-decoration: none;
  color: var(--text-primary);
}
.quick-link-icon {
  font-size: 32px;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--primary-light);
}

/* ===== HOMEWORK ===== */
.hw-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  cursor: pointer;
}
.hw-card-status {
  width: 4px;
  height: 50px;
  border-radius: var(--radius-pill);
  flex-shrink: 0;
}
.hw-card-status.active { background: var(--info); }
.hw-card-status.submitted { background: var(--warning); }
.hw-card-status.reviewed { background: var(--success); }
.hw-card-status.overdue { background: var(--error); }
.hw-card-status.revision { background: var(--accent-color); }
.hw-card-info { flex: 1; }
.hw-card-title { font-weight: var(--font-weight-semibold); margin-bottom: var(--space-xs); }
.hw-card-meta { font-size: var(--font-size-xs); color: var(--text-muted); }
.hw-card-score {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--primary-dark);
}

/* ===== ADMIN ===== */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}
.admin-table th {
  text-align: left;
  padding: var(--space-md);
  border-bottom: 2px solid var(--border-color);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.admin-table td {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
}
.admin-table tr:hover td { background: var(--bg-elevated); }

/* ===== RESPONSIVE PAGE OVERRIDES ===== */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; gap: var(--space-xl); }
  .hero-content { margin: 0 auto; }
  .hero-actions { justify-content: center; }
  .task-bank-layout { grid-template-columns: 1fr; }
  .task-filter-sidebar { position: static; }
  .media-viewer { grid-template-columns: 1fr; }
  .charts-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero-title { font-size: var(--font-size-3xl); }
  .hero-subtitle { font-size: var(--font-size-md); }
  .hero-photo { width: 280px; height: 320px; }
  .hero-photo-blob { width: 300px; height: 300px; }
  .hero-photo-blob-2 { width: 240px; height: 240px; }
  .generator-modes { grid-template-columns: 1fr; }
  .review-card { min-width: 280px; }
  .auth-card { padding: var(--space-lg); }
  .media-grid { grid-template-columns: 1fr; }
}

/* =============================================
   HW SOLVE PAGE (ученик)
   ============================================= */

.hw-solve-page {
  min-height: 100vh;
  padding-bottom: 80px;
}

/* Sticky шапка */
.hw-solve-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 12px var(--space-lg);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.hw-solve-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0;
  text-align: center;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hw-solve-header-center {
  flex: 1;
  text-align: center;
  overflow: hidden;
}

/* Прогресс */
.hw-progress-bar-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px var(--space-md);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

/* Разделитель частей */
.hw-section-label {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 6px 0;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: var(--space-md);
}

/* Карточка задачи */
.hw-task-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  transition: box-shadow 0.2s ease;
}
.hw-task-card:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.hw-task-card-header {
  margin-bottom: var(--space-sm);
}

.hw-task-card-content {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  white-space: pre-line;
}

.hw-task-img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  display: block;
}

.hw-task-img-small {
  max-width: 280px; width: 100%;
}
.hw-task-img-8 {
  max-width: 450px; width: 100%;
}
.hw-task-img-medium {
  max-width: 450px; width: 100%;
}
.hw-task-img-large {
  min-height: 240px;
  min-width: 240px;
  object-fit: contain;
  object-position: left top;
}

/* Поле ответа */
.hw-answer-wrap {
  background: var(--bg-color);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  border: 1px solid var(--border-color);
}

/* Загрузка файла */
.hw-file-upload {
  margin-top: var(--space-sm);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.hw-file-label {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1.5px dashed var(--primary-color);
  color: var(--primary-color);
  font-size: 13px;
  font-weight: 600;
  transition: background 0.15s;
}
.hw-file-label:hover { background: var(--primary-bg); }

/* Просмотр сданного ответа */
.hw-answer-submitted {
  background: var(--bg-color);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  border: 1px solid var(--border-color);
}
.hw-answer-submitted-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.hw-answer-submitted-value {
  font-size: 1rem;
  font-weight: 600;
}
.hw-teacher-comment {
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--primary-bg);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary-color);
}

/* Sticky кнопка сдачи */
.hw-submit-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 12px 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  box-shadow: 0 -4px 24px rgba(0,0,0,0.10);
  backdrop-filter: blur(12px);
}

/* Карточка из списка ДЗ */
.hw-list-card {
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
}

/* =============================================
   HW CREATE PAGE (учитель)
   ============================================= */

.hw-create-page {
  min-height: 100vh;
}

/* Двухколоночная сетка */
.hw-create-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.hw-create-left {
  position: sticky;
  top: 76px;
  max-height: calc(100vh - 100px);
  display: flex;
  flex-direction: column;
}

.hw-create-right {
  /* Правая колонка скроллится естественно */
}

/* Строка задачи в браузере */
.hc-task-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  margin-bottom: 6px;
  cursor: pointer;
  transition: background 0.1s, border-color 0.1s;
  background: var(--bg-card);
}
.hc-task-item:hover {
  background: var(--primary-bg);
  border-color: var(--primary-light);
}
.hc-task-item.selected {
  background: var(--primary-bg);
  border-color: var(--primary-color);
}
.hc-task-item-info { flex: 1; min-width: 0; }

.hc-toggle-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  border-radius: 50%;
}

/* Responsive — мобильные */
@media (max-width: 900px) {
  .hw-create-grid {
    grid-template-columns: 1fr;
  }
  .hw-create-left {
    position: static;
    max-height: 60vh;
  }
  .hw-solve-header {
    padding: 10px var(--space-md);
  }
  .hw-solve-title {
    font-size: 0.95rem;
  }
}

@media (max-width: 600px) {
  .hw-task-card {
    padding: var(--space-md);
  }
  .hw-submit-bar .container {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  .hw-submit-bar .container button {
    width: 100%;
  }
}

/* =============================================
   LANDING PAGE V2 — Reviews Carousel
   ============================================= */
.reviews-carousel {
  position: relative;
  padding: 0 48px;
}
.carousel-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: var(--space-md) 0;
  scrollbar-width: none;
}
.carousel-track::-webkit-scrollbar { display: none; }

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--transition-base), background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
  box-shadow: var(--shadow-sm);
}
.carousel-arrow:hover {
  background: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
}
.carousel-arrow--left { left: 0; }
.carousel-arrow--right { right: 0; }

.carousel-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: var(--space-md);
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-color, #e2e8f0);
  cursor: pointer;
  transition: all 0.3s ease;
}

.carousel-dot:hover {
  background: var(--text-muted);
}

.carousel-dot.active {
  width: 24px;
  border-radius: 4px;
  background: var(--primary-color);
}

.review-card {
  min-width: 340px;
  max-width: 380px;
  scroll-snap-align: start;
  flex-shrink: 0;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}
.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.review-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}
.review-card-stars { color: var(--warning); letter-spacing: 2px; }
.review-card-result {
  display: inline-block;
  margin-top: var(--space-md);
  padding: 4px 12px;
  background: var(--success-light);
  color: #2D7A54;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}
.review-card-text {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}
.review-card-readmore {
  margin-top: var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--primary-dark);
  transition: color 0.15s;
}
.review-card:hover .review-card-readmore { color: var(--primary-color); }

/* =============================================
   LANDING PAGE V2 — Service Cards (EdTech)
   ============================================= */
.svc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 420px));
  justify-content: center;
  gap: 28px;
  align-items: stretch;
}

.svc-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s;
}
.svc-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.12);
}

/* Cover */
.svc-card__cover {
  position: relative;
  height: 280px;
  background-size: cover;
  background-position: top center;
  background-color: var(--primary-light);
}
.svc-card__badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(6px);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

/* Body */
.svc-card__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* Subtitle */
.svc-card__subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Title */
.svc-card__title {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 14px;
  color: var(--text-primary);
  letter-spacing: 0.01em;
}

/* Tags */
.svc-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.svc-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary-dark);
  letter-spacing: 0.01em;
}
.svc-tag:nth-child(2) { background: #FFF3E0; color: #E65100; }
.svc-tag:nth-child(3) { background: #E8F5E9; color: #2E7D32; }

/* Meta */
.svc-card__meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}
.svc-card__meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}
.svc-card__meta-icon {
  font-size: 15px;
  flex-shrink: 0;
}

/* Price */
.svc-card__price {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  margin-top: auto;
}
.svc-card__price strong {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
}
.svc-card__price span {
  font-size: 13px;
  color: var(--text-muted);
}

/* Buttons */
.svc-card__buttons {
  display: flex;
  gap: 10px;
}
.svc-card__btn-primary,
.svc-card__btn-secondary {
  flex: 1;
  padding: 12px 0;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-md);
  text-align: center;
  transition: transform var(--transition-base), background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
}
.svc-card__btn-primary {
  text-decoration: none;
}
.svc-card__btn-secondary {
  background: transparent;
  border: 1.5px solid var(--border-color);
  color: var(--text-primary);
  cursor: pointer;
}
.svc-card__btn-secondary:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* Description */
.svc-card__desc {
  font-size: 13px;
  line-height: 1.55;
  color: var(--text-secondary);
  margin-bottom: 20px;
  white-space: pre-wrap;
}
.svc-card__toggle {
  display: none;
}

/* =============================================
   LANDING PAGE V2 — Social Pills
   ============================================= */
.social-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.social-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 28px;
  background: var(--bg-card);
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-pill);
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 15px;
  transition: transform var(--transition-base), background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
  box-shadow: var(--shadow-sm);
}
.social-pill:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
  background: var(--primary-light);
}
.social-pill__icon {
  font-size: 22px;
}

/* =============================================
   LANDING PAGE V2 — Responsive
   ============================================= */
@media (max-width: 1024px) {
  .reviews-carousel { padding: 0 40px; }
}
@media (max-width: 768px) {
  .svc-grid { grid-template-columns: 1fr; gap: 20px; max-width: 420px; margin-left: auto; margin-right: auto; }
  .review-card { min-width: 280px; max-width: 320px; }
  .reviews-carousel { padding: 0; }
  .carousel-arrow { display: none; }
  .svc-card__cover { height: 220px; }
  .svc-card__title { font-size: 15px; }
  .svc-card__price strong { font-size: 22px; }
  .social-pill { padding: 10px 20px; font-size: 14px; }

  /* Mobile: collapse description */
  .svc-card__desc {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .svc-card__desc.expanded {
    display: block;
    -webkit-line-clamp: unset;
    overflow: visible;
  }
  .svc-card__toggle {
    display: inline-block;
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 4px 0;
    margin-bottom: 12px;
  }
  .svc-card__toggle:hover {
    text-decoration: underline;
  }
}

/* =============================================
   PRINT STYLES
   ============================================= */
@media print {
  /* Скрыть интерфейс: шапка, меню, сайдбар, футер */
  .header, .nav-links, .sidebar, #nav-hamburger, #nav-mobile, footer, #auth-section, #auth-section-mobile {
    display: none !important;
  }
  
  /* Скрыть интерактивные элементы в самом варианте */
  .btn, input, textarea, .timer, #confetti-canvas, .notifications-wrapper, .dropdown, .accordion, .print-hide {
    display: none !important;
  }

  /* Развернуть контент */
  body {
    background: #fff !important;
    color: #000 !important;
  }
  
  .container {
    max-width: 100% !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .card {
    box-shadow: none !important;
    border: none !important;
    border-bottom: 1px solid #ccc !important;
    border-radius: 0 !important;
    background: #fff !important;
    margin-bottom: 20px !important;
    page-break-inside: avoid;
  }

  /* Сброс цветов для экономии краски */
  .badge {
    border: 1px solid #000 !important;
    background: transparent !important;
    color: #000 !important;
  }
}

/* =============================================
   ADMIN CHECK PAGE
   ============================================= */
.ac-task-card {
  padding: var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
  border: 1px solid var(--border-light);
  margin-bottom: var(--space-lg);
}
.ac-task-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.ac-task-card.ac-reviewed { border-color: var(--success); border-left-width: 4px; }
.ac-task-card.ac-pending { border-color: var(--warning); border-left-width: 4px; }

.ac-task-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-light);
}

.ac-task-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}
@media (max-width: 900px) {
  .ac-task-grid { grid-template-columns: 1fr; }
}

.ac-task-col { min-width: 0; }

.ac-student-col {
  padding: var(--space-md);
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.ac-solution-wrap {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--primary-color);
  display: none;
}
.ac-solution-wrap.open { display: block; }

.ac-toggle-btn {
  margin-top: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--primary-color);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-weight: var(--font-weight-semibold);
  text-decoration: underline;
}

.ac-score-group { margin-top: var(--space-md); }
.ac-score-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-md);
}
.ac-score-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  cursor: pointer;
  transition: transform var(--transition-base), background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
}
.ac-score-btn:hover { border-color: var(--primary-color); color: var(--primary-color); }
.ac-score-btn.active { background: var(--primary-color); color: white; border-color: var(--primary-color); }

.ac-auto-task {
  padding: var(--space-md);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  border: 1px solid var(--border-light);
  border-left-width: 4px;
  margin-bottom: var(--space-sm);
}
.ac-auto-correct { border-left-color: var(--success); }
.ac-auto-error { border-left-color: var(--error); }

.ac-sticky-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-md);
  position: sticky;
  top: var(--nav-height, 60px);
  background: var(--bg-card);
  z-index: 100;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.ac-batch-save-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 -4px 12px rgba(0,0,0,0.05);
}

/* UI Enhancements for Teacher Check */
.ac-textarea-wrapper {
  position: relative;
  display: flex;
  align-items: flex-end;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 8px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.ac-textarea-wrapper:focus-within {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}

.ac-auto-resize {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  padding: 4px;
  font-family: inherit;
  font-size: 14px;
  line-height: 1.5;
  min-height: 24px;
  max-height: 300px;
  overflow-y: auto !important;
  color: var(--text-color);
}

.ac-file-upload-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--bg-body);
  color: var(--text-secondary);
  cursor: pointer;
  margin-left: 8px;
  transition: transform var(--transition-base), background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
  font-size: 16px;
}

.ac-file-upload-btn:hover {
  background: var(--primary-light);
  color: var(--primary-color);
}

.ac-auto-task-wrap {
  margin-bottom: 5px;
}

.ac-auto-task {
  transition: transform 0.2s, box-shadow 0.2s;
}

.ac-auto-task:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

/* ===== GRADING CRITERIA ===== */
.grading-criteria-block {
  margin-top: 32px;
  border-radius: var(--radius-md, 12px);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.08);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.grading-criteria-header {
  padding: 14px 20px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8ecf8 100%);
  color: #2d3748;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.grading-criteria-content {
  padding: 0;
}

.grading-criteria-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.55;
}

.grading-criteria-table thead th {
  padding: 12px 20px;
  text-align: left;
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #64748b;
  background: #f8fafc;
  border-bottom: 2px solid #e2e8f0;
}

.grading-criteria-table thead th:last-child {
  text-align: center;
  width: 80px;
}

.grading-criteria-table tbody td {
  padding: 14px 20px;
  vertical-align: top;
  border-bottom: 1px solid #f1f5f9;
  color: #334155;
}

.grading-criteria-table tbody td:last-child {
  text-align: center;
  font-weight: 700;
  font-size: 18px;
  color: #3b82f6;
  vertical-align: middle;
  width: 80px;
}

.grading-criteria-table tbody td.score {
  text-align: center;
  font-weight: 700;
  font-size: 18px;
  color: #3b82f6;
  vertical-align: middle;
}

.grading-criteria-table tbody tr:hover {
  background: #f8fafc;
}

.grading-criteria-table tbody td em {
  font-style: italic;
}

.grading-criteria-table tbody td strong {
  color: #1e293b;
}

.grading-criteria-table tfoot td {
  padding: 12px 20px;
  font-weight: 700;
  background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%);
  border-top: 2px solid #c7d2fe;
  color: #1e293b;
}

.grading-criteria-table tfoot td:last-child {
  text-align: center;
  font-size: 20px;
  color: #4f46e5;
}

.grading-criteria-table tfoot td.score {
  text-align: center;
  font-size: 20px;
  color: #4f46e5;
}