:root,
:host {
  margin-left: 0px !important;
}

.iframe-container {
  width: 100%;
  height: 100%;
  /* Занимаем всю высоту родителя */
  background-color: var(--tblr-body-bg);
  position: relative;
}

.iframe-container iframe {
  width: 100%;
  min-height: calc(90vh / var(--device-pixel-ratio, 1) * var(--content-scale, 0.90));
  border: none;
}

.iframe-container iframe.loading {
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
}

.iframe-container iframe.refreshing {
  opacity: 1;
}


.iframe-container-preview {
  /* mobile - 100% */
  width: 100%;
  height: 50%;
  background-color: var(--tblr-body-bg);
  position: relative;
  overflow: hidden;
}

@media (min-width: 992px) {

  /*  */
  .iframe-container-preview {
    width: 50%;
  }
}

.iframe-container-preview iframe {
  width: 100%;
  min-height: calc(50vh / var(--device-pixel-ratio, 1));
  /* Учитываем системный масштаб */
  border: none;
}

.iframe-container-preview iframe.loading {
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
}

.iframe-container-preview iframe.refreshing {
  opacity: 1;
}




.link-unstyled {

  &,
  &:visited,
  &:hover,
  &:active,
  &:focus,
  &:active:hover {
    font-style: inherit;
    color: inherit;
    background-color: transparent !important;
    font-size: inherit;
    text-decoration: none;
    font-variant: inherit;
    font-weight: inherit;
    line-height: inherit;
    font-family: inherit;
    border-radius: inherit;
    outline: inherit;
    box-shadow: inherit;
    vertical-align: inherit;
    border: none !important;
    border-width: 0 !important;
  }
}

.card-success {
  --tblr-card-border-color: var(--tblr-green);
}

.card-wait {
  --tblr-card-border-color: var(--tblr-muted);
}


#practice-app {
  margin-top: -0.75rem !important;
}

.ratio {
  position: relative;
  width: 100%;
  height: 100%;
}

.ratio::before {
  content: "";
  display: block;
  padding-top: 75%;
  /* Для ratio-4x3 */
}

.ratio-16x9::before {
  padding-top: 56.25%;
  /* Для ratio-16x9 */
}

.ratio>* {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}


.auto-refresh-indicator {
  display: inline-flex;
  align-items: center;
  margin-top: 0.25rem;
}

.auto-refresh-indicator .badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35em 0.65em;
  font-size: 0.75em;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: 0.25rem;
  transition: all 0.2s ease;
  background-color: #0d6efd;
  color: white;
}

.auto-refresh-indicator .badge svg {
  animation: spin 1s linear infinite;
  margin-right: 0.25rem;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}


/* Стили для пульсирующей кнопки */
@keyframes pulse-button {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(var(--tblr-primary-rgb), 0.4);
  }

  70% {
    transform: scale(1.05);
    box-shadow: 0 0 0 10px rgba(var(--tblr-primary-rgb), 0);
  }

  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(var(--tblr-primary-rgb), 0);
  }
}

.pulse-button {
  animation: pulse-button 2s infinite;
}

/* Стили для неактивных кнопок в header */
.btn-pill:disabled {
  opacity: 1;
  cursor: default;
  pointer-events: none;
}

.btn-pill:disabled.btn-primary {
  background-color: var(--tblr-primary);
  border-color: var(--tblr-primary);
}

.btn-pill:disabled.btn-info {
  background-color: var(--tblr-info);
  border-color: var(--tblr-info);
}

.btn-pill:disabled.btn-outline-secondary {
  color: var(--tblr-secondary);
  border-color: var(--tblr-secondary);
}


.btn-pill:disabled.btn-outline-dark {
  color: var(--tblr-dark);
  border-color: var(--tblr-dark);
}


.btn-pill:disabled.btn-outline-info {
  color: var(--tblr-info);
  border-color: var(--tblr-info);
}

.blurred-hint {
  filter: blur(2px);
  transition: filter 0.2s;
  position: relative;
}

.blurred-hint:hover {
  filter: blur(3px);
}

.blurred-hint::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.5);
  pointer-events: none;
}


/* Стили для пульсирующей кнопки */
@keyframes error-pulse {
  0% {
    outline: 0 solid rgba(var(--tblr-danger-rgb), 0.1);
  }

  30% {
    outline: 3px solid rgba(var(--tblr-danger-rgb), 0.75);
  }

  50% {
    outline: 0px solid rgba(var(--tblr-danger-rgb), 0.3);
  }

  70% {
    outline: 3px solid rgba(var(--tblr-danger-rgb), 0.75);
  }

  100% {
    outline: 0 solid rgba(var(--tblr-danger-rgb), 0.1);
  }
}


.iframe-error {
  animation: error-pulse 3s ease-in-out infinite;
  transition: border-color 1s ease-out;
  box-sizing: border-box;
  outline-offset: 0;
}

/* Усиленная анимация для кнопки 'Начать тренировку' */
@keyframes demo-highlight-glow {
  0% {
    box-shadow: 0 0 0 0 #ffc107, 0 0 0 0 #ff5722;
    transform: scale(1);
  }

  30% {
    box-shadow: 0 0 24px 8px #ffc107, 0 0 48px 16px #ff5722;
    transform: scale(1.08);
  }

  60% {
    box-shadow: 0 0 16px 4px #ffc107, 0 0 32px 8px #ff5722;
    transform: scale(1.04);
  }

  100% {
    box-shadow: 0 0 0 0 #ffc107, 0 0 0 0 #ff5722;
    transform: scale(1);
  }
}

.demo-highlight-btn {
  animation: demo-highlight-glow 1s cubic-bezier(.4, 2, .6, 1) 3;
  border: 3px solid #ffc107 !important;
  background: linear-gradient(90deg, #fffbe6 0%, #ffe0b2 100%) !important;
  color: #222 !important;
  position: relative;
  z-index: 10;
}

.demo-start-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0px;
  margin-right: 70px;
}

.demo-arrow-container {
  position: static;
  width: 70px;
  height: 70px;
  min-width: 60px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-right: 0;
  pointer-events: none;
  z-index: 2;
}

.demo-arrow-svg {
  width: 60px;
  height: 60px;
  display: block;
  filter: drop-shadow(0 2px 6px #ffe10088);
}

.practice-step-card {
  background: #181f2c;
  border-radius: 18px;
  box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* Стили для переливающегося текста */
.pulsing-text {
  animation: colorPulse 7s infinite;
  white-space: nowrap;
}

@keyframes colorPulse {
  0% {
    color: var(--tblr-info);
  }

  50% {
    color: var(--tblr-primary);
  }

  100% {
    color: var(--tblr-info);
  }
}

.fade-out {
  opacity: 0;
  /* Уменьшаем непрозрачность до 0 */
  transition: opacity 0.3s ease;
  /* Плавный переход на 0.5 секунды */
}

/* Стили для сортируемого списка */
.sortable-list .list-group-item {
  cursor: move;
  transition: background-color 0.2s;
}


.sortable-list .list-group-item .btn {
  padding: 0.25rem 0.5rem;
}

/* Стили для вопросов */
.question-container {
  margin-bottom: 2rem;
  padding: 1.5rem;
  border-radius: 8px;
  background-color: #f8f9fa;
}

.question-text {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  color: #2c3e50;
}

/* Стили для обычных вопросов */
.answer-option {
  display: block;
  width: 100%;
  padding: 1rem;
  margin-bottom: 0.75rem;
  border: 2px solid #dee2e6;
  border-radius: 6px;
  background-color: white;
  cursor: pointer;
  transition: all 0.2s ease;
}

.answer-option:hover {
  border-color: #6c757d;
  background-color: #f8f9fa;
}

.answer-option.correct {
  border-color: #28a745;
  background-color: #d4edda;
}

.answer-option.incorrect {
  border-color: #dc3545;
  background-color: #f8d7da;
}

/* Стили для вопросов с сортировкой */
.sortable-container {
  margin: 1rem 0;
}

.sortable-item {
  display: flex;
  align-items: center;
  padding: 1rem;
  margin-bottom: 0.75rem;
  background-color: white;
  border: 2px solid #dee2e6;
  border-radius: 6px;
  cursor: move;
  transition: all 0.2s ease;
}

.sortable-item:hover {
  border-color: #6c757d;
  background-color: #f8f9fa;
}

.sortable-item .drag-handle {
  margin-right: 1rem;
  color: #6c757d;
  cursor: move;
}

.sortable-item .item-content {
  flex-grow: 1;
}

.sortable-item .move-buttons {
  display: flex;
  gap: 0.5rem;
}

.sortable-item .move-button {
  padding: 0.25rem 0.5rem;
  border: 1px solid #dee2e6;
  border-radius: 4px;
  background-color: white;
  cursor: pointer;
  transition: all 0.2s ease;
}

.sortable-item .move-button:hover {
  background-color: #f8f9fa;
  border-color: #6c757d;
}

.sortable-item .move-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Стили для кнопки отправки */
.submit-button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  margin-top: 1rem;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.submit-button:hover {
  background-color: #0056b3;
}

.submit-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Стили для сообщений о правильности ответа */
.answer-feedback {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 6px;
}

.answer-feedback.correct {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.answer-feedback.incorrect {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}


.empty-img {
  max-width: 500px;
  max-height: 500px;
}


.footer-borderless {
  border-top: none !important;
  background-color: transparent !important;
}

.hero-small-img {
  margin: 4rem auto;
  max-width: 45rem;
  border-radius: 8px;
  position: relative;
  z-index: 1;
}

.hero-small-img img,
.hero-small-img svg {
  max-width: 100%;
  height: auto;
  display: block;
  position: relative;
}

.card-colorless {
  background-color: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0 !important;
}

.card-backgroundless {
  background-color: transparent !important;
}



.modal-active {
  --tblr-modal-border-color: var(--tblr-border-color);
  --tblr-modal-bg: var(--tblr-active-bg);
}


.modal-card-colorless {
  --tblr-card-bg: var(--tblr-bg-surface-tertiary) !important;
}

/* Специальные стили для Grafana iframe - скрытие header */
.iframe-container .grafana-iframe {
  /* CSS переменные для унификации вычислений */
  --grafana-header-offset: 130px;
  --grafana-viewport-height: 90vh;

  /* Наследуем базовые стили для всех iframe */
  width: 100%;
  border: none;

  /* Специфичные настройки для Grafana - сдвиг вверх для скрытия header */
  margin-top: calc(var(--grafana-header-offset) * -1);
  min-height: calc((var(--grafana-viewport-height) / var(--device-pixel-ratio, 1) * var(--content-scale, 0.90)) + var(--grafana-header-offset));
}

.iframe-container:has(.grafana-iframe) {
  overflow: hidden;
}

.iframe-container .grafana-iframe.loading {
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
}

.iframe-container .grafana-iframe.refreshing {
  opacity: 1;
}

/* Альтернативный подход для браузеров без поддержки :has() */
@supports not (selector(:has(*))) {
  .iframe-container .grafana-iframe {
    transform: translateY(calc(var(--grafana-header-offset) * -1));
  }
}


.survery-list-group-item {
  --tblr-list-group-item-padding-x: 0.25rem;
}


.blur-content {
  filter: blur(5px);
  pointer-events: none;
  user-select: none;
}

.register-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1000;
  text-align: center;
}

.welcome-overlay-image {
  position: absolute;
  top: 75%;
  left: 17%;
  width: 90%;
  max-width: calc(100% - 17%);
  overflow-x: hidden;
  overflow-y: visible;
  padding-bottom: 0;
  max-height: 90%;
  object-fit: cover;
  object-position: 0 0;
  display: block;
}


.ribbon.bg-success-lt {
  border-color: var(--tblr-success-lt) !important;
}


.ribbon.bg-warning-lt {
  border-color: var(--tblr-warning-lt) !important;
}

/* Стили для оглавления */
.sidebar-fixed {
  position: sticky;
  top: 20px;
  height: fit-content;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  scrollbar-width: none;
  /* Firefox */
  -ms-overflow-style: none;
  /* IE and Edge */
}

/* Скрываем скроллбар для Chrome, Safari */
.sidebar-fixed::-webkit-scrollbar {
  display: none;
}

.sidebar-fixed::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 3px;
}

.sidebar-fixed::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 3px;
}

.sidebar-fixed::-webkit-scrollbar-thumb:hover {
  background: #a8a8a8;
}

/* Стили для ссылок оглавления */
.toc-link {
  display: block;
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  transition: background-color 0.2s ease;
  cursor: pointer;
  position: relative;
  z-index: 100;
  pointer-events: auto;
  user-select: none;
}

.toc-link:hover {
  background-color: #f8f9fa;
  text-decoration: none;
}

.toc-link:active {
  background-color: #e9ecef;
}

.toc-link.text-body {
  color: var(--tblr-body-color);
  font-weight: 500;
}

.toc-link.link-unstyled {
  color: var(--tblr-body-color);
  font-size: var(--tblr-font-size-sm);
}

.toc-link.link-unstyled small {
  color: var(--tblr-muted);
  margin-right: 0.5rem;
  pointer-events: none;
}

/* Убеждаемся, что родительские элементы не блокируют клики */
#table-of-contents {
  pointer-events: auto;
  z-index: 10;
}

#table-of-contents li {
  pointer-events: auto;
}

/* Стили для фильтров категорий */
.badge-category {
  font-size: var(--tblr-font-size-lg) !important;
  background-color: var(--tblr-blue-lt) !important;
}

.badge-category:hover {
  text-decoration: none;
}

.badge-category.active {
  background-color: var(--tblr-orange) !important;
  color: var(--tblr-orange-fg);
}

.badge-category.active:hover {
  background-color: var(--tblr-orange-lt);
  color: var(--tblr-orange-fg);
}


.tblr-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100vw;
  padding: 0;
  margin: 0;
  font-family: var(--tblr-body-font-family, Lato, sans-serif);
  font-size: var(--tblr-body-font-size, 12px);
  font-weight: var(--tblr-body-font-weight, 400);
  line-height: var(--tblr-body-line-height, 1.2);
  background: linear-gradient(90deg, #43cea2, #185a9d);
  z-index: 9999;
  display: flex;
  text-align: center;
  box-sizing: border-box;
}

.tblr-banner b,
.tblr-banner strong {
  font-weight: 600
}

.tblr-banner-text {
  flex: 1;
  padding: 8px 16px;
  color: #fff;
  text-decoration: none;
  display: block;
  transition: opacity .3s ease
}

.tblr-banner-text:hover {
  text-decoration: none;
  color: #fff;
  opacity: .8
}

.tblr-banner-close {
  color: #fff;
  cursor: pointer;
  z-index: 10000;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: .5;
  transition: opacity .3s ease, transform .3s ease
}

.tblr-banner-close:hover {
  opacity: 1;
  transform: rotate(90deg)
}