/* tasks.css — стили тренажёров, каталога, экзамена, логина, сложности */

/* Trainer */
.task-text {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-main);
  white-space: pre-line;
}

.task-content img {
  max-width: 100%;
  border-radius: 10px;
  margin: 20px auto;
  display: block;
}

.task-error-link {
  margin-left: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(212, 175, 55, 0.6);
  background: rgba(212, 175, 55, 0.12);
  color: var(--gold-primary);
  font-size: var(--font-size-xs);
  cursor: pointer;
  opacity: 0.5;
  transition:
    opacity 0.2s ease,
    background-color 0.2s ease,
    transform 0.1s ease,
    box-shadow 0.2s ease;
}

.task-error-link:hover {
  opacity: 0.85;
  background: rgba(212, 175, 55, 0.22);
  box-shadow: 0 2px 8px rgba(212, 175, 55, 0.35);
  transform: translateY(-1px);
}

[data-theme="light"] .task-error-link {
  background: rgba(212, 175, 55, 0.18);
  color: #7a5c0d;
  opacity: 0.8;
}

[data-theme="light"] .task-error-link:hover {
  background: rgba(212, 175, 55, 0.26);
}

.answer-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.answer-row {
  display: flex;
  align-items: center;
  gap: 15px;
}

.answer-input-row {
  display: flex;
}

.answer-input-row input {
  flex: 1;
}

.result-badge {
  min-width: 120px;
  font-size: var(--font-size-sm);
}

.mjx-chtml {
  font-size: 110% !important;
  color: var(--color-text-main);
}

mjx-container {
  display: inline-block !important;
  margin: 0 2px !important;
  vertical-align: middle !important;
}

/* Catalog */
.catalog-header {
  width: 100%;
  margin-bottom: var(--space-md);
}

.catalog-subtitle {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.catalog-container {
  width: 100%;
  max-width: 900px;
}

.catalog-card {
  margin-bottom: var(--space-md);
}

.catalog-card-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-main);
}

.catalog-card-index {
  font-weight: 700;
  margin-right: 6px;
}

.catalog-card-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: var(--space-sm);
}

.catalog-btn {
  padding: 6px 12px;
  border-radius: 999px;
  border: none;
  font-size: var(--font-size-xs);
  cursor: pointer;
  font-weight: 500;
}

.catalog-btn.primary {
  background: var(--gold-gradient);
  color: var(--text-on-gold);
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.catalog-btn.ghost {
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.catalog-btn-disabled {
  opacity: 0.45;
  cursor: default;
}

.catalog-answer,
.catalog-video-stub {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
}

.catalog-image {
  max-width: 70%;
  max-height: 260px;
  display: block;
  margin: 8px 0 12px;
  border-radius: 8px;
  object-fit: contain;
}

/* Login / Registration */
.auth-main {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.auth-card {
  background: var(--color-bg-card);
  border-radius: 16px;
  border: 1px solid var(--color-border);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
  max-width: 420px;
  width: 100%;
}

.auth-card h1 {
  margin: 0 0 var(--space-xs);
  font-size: var(--font-size-xl);
}

.auth-subtitle {
  margin: 0 0 var(--space-md);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

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

.auth-label {
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.auth-input {
  font-size: var(--font-size-base);
}

.auth-btn {
  width: 100%;
  margin-top: var(--space-xs);
}

/* Exam */
.exam-root {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.exam-top-bar {
  position: sticky;
  top: 64px;
  z-index: 90;
  width: 100%;
  background: var(--color-bg-secondary);
  border-radius: 999px;
  border: 1px solid var(--color-border);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.exam-top-title {
  font-weight: 600;
}

.exam-top-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
}

.exam-timer-label {
  color: var(--color-text-secondary);
}

.exam-timer-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--font-size-sm);
}

.exam-card {
  max-width: 900px;
}

.exam-task-card {
  background: var(--color-bg-secondary);
  border-radius: 12px;
  padding: 12px 14px;
}

.exam-task-header {
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.exam-task-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.exam-task-image {
  max-width: 80%;
  max-height: 260px;
  margin: 4px 0 8px;
  align-self: center;
  border-radius: 8px;
  object-fit: contain;
  background: #000000;
}

.exam-answer-wrapper {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.exam-answer-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.exam-answer-input {
  font-size: var(--font-size-sm);
}

.exam-result {
  width: 100%;
  display: flex;
  justify-content: center;
  padding: var(--space-lg) 0;
}

.exam-result-card {
  max-width: 560px;
  text-align: center;
}

.exam-result-text {
  margin: var(--space-sm) 0 var(--space-md);
  font-size: var(--font-size-lg);
}

.exam-breakdown {
  margin-top: var(--space-sm);
  text-align: left;
}

.exam-breakdown-title {
  margin: 0 0 var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.exam-breakdown-table {
  font-size: var(--font-size-sm);
}

.exam-breakdown-correct {
  color: var(--color-success);
  font-weight: 600;
}

.exam-breakdown-wrong {
  color: var(--color-danger);
  font-weight: 600;
}

.exam-result-actions {
  margin-top: var(--space-md);
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* Кнопки тренажёра / стероида (переиспользуют общий стиль золотой кнопки) */
.btn-check {
  background: var(--gold-gradient);
  color: var(--text-on-gold);
  font-weight: 700;
  border-radius: 999px;
  border: none;
  padding: 8px 16px;
  font-size: var(--font-size-sm);
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
  transition:
    background-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.1s ease;
}

.btn-check:hover {
  box-shadow: 0 6px 20px rgba(212, 175, 55, 0.45);
  transform: translateY(-1px);
}

.result-badge {
  min-height: 32px;
  display: flex;
  align-items: center;
}

.result-badge--success,
.result-badge--error {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: var(--font-size-sm);
}

.result-badge--success {
  background: rgba(16, 185, 129, 0.16);
  color: #047857;
  border: 1px solid rgba(5, 150, 105, 0.9);
  box-shadow: 0 0 10px rgba(5, 150, 105, 0.25);
}

.result-badge--error {
  background: rgba(239, 68, 68, 0.16);
  color: #b91c1c;
  border: 1px solid rgba(220, 38, 38, 0.9);
}

.light-mode .result-badge--success {
  background: rgba(16, 185, 129, 0.12);
  color: #065f46;
}

.light-mode .result-badge--error {
  background: rgba(239, 68, 68, 0.12);
  color: #991b1b;
}

.result-badge-icon {
  width: 18px;
  height: 18px;
}

.result-badge-text-strong {
  font-weight: 600;
}

.result-badge-text-sub {
  display: block;
  font-size: var(--font-size-xs);
  opacity: 0.9;
}

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

.result-badge-animated {
  animation: slideUpFade 0.3s ease-out;
}

@keyframes answer-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

.answer-section-shake {
  animation: answer-shake 0.4s ease;
}

/* Difficulty feedback */
.difficulty-feedback {
  margin-top: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.difficulty-feedback-hidden {
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
}

.difficulty-label {
  margin-bottom: 4px;
}

.difficulty-buttons {
  display: inline-flex;
  gap: 6px;
}

.difficulty-btn {
  border: none;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.1s ease, box-shadow 0.2s ease;
}

.difficulty-btn.diff-easy {
  background: #dcfce7;
}

.difficulty-btn.diff-mid {
  background: #fef9c3;
}

.difficulty-btn.diff-hard {
  background: #fee2e2;
}

.difficulty-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

/* Profile */
.profile-achievements {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-md);
}

.profile-achievement {
  background: var(--color-bg-secondary);
  border-radius: 10px;
  border: 1px dashed var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.profile-level-track {
  width: 100%;
  background: rgba(156, 163, 175, 0.25);
  border-radius: 999px;
  overflow: hidden;
  height: 10px;
  margin-bottom: 4px;
}

.profile-level-bar {
  width: 0%;
  height: 100%;
  border-radius: 999px;
  background: var(--gold-gradient);
  box-shadow: 0 4px 10px rgba(212, 175, 55, 0.35);
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.profile-level-xp {
  font-size: 0.85rem;
}

.profile-achievements-card {
  margin-top: var(--space-sm);
}

/* Видеоразбор (модальное окно Kinescope) */
.video-modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition:
    opacity 0.25s ease,
    transform 0.25s ease;
  z-index: 110;
}

.video-modal-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.video-modal-dialog {
  position: relative;
  width: 100%;
  max-width: 960px;
  margin: 0 24px;
  background: var(--color-bg-secondary);
  border-radius: 16px;
  border: 1px solid var(--color-border);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.75);
  padding: 20px 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.video-modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(0, 0, 0, 0.15);
  color: var(--color-text-main);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background-color 0.15s ease,
    transform 0.1s ease,
    box-shadow 0.15s ease;
}

.video-modal-close:hover {
  background: rgba(0, 0, 0, 0.3);
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

.video-modal-body {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.video-modal-frame-wrapper {
  position: relative;
  width: 100%;
  /* Адаптивное соотношение сторон 16:9 */
  padding-top: 56.25%;
  border-radius: 10px;
  overflow: hidden;
  background: #000;
}

.video-modal-iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.video-modal-error {
  font-size: var(--font-size-sm);
  color: var(--color-danger);
}

@media (max-width: 640px) {
  .video-modal-dialog {
    margin: 0 8px;
    padding: 12px 12px 16px;
  }

  .video-modal-close {
    top: 6px;
    right: 6px;
  }
}