.knowledge-check {
  min-width: 0;
  font-family: var(--font-text);
  --kc-accent: #6f8798;
  --kc-accent-hover: #536b7b;
  --kc-accent-soft: #dce7ed;
  --kc-accent-soft-hover: #c9dbe4;
  --kc-selected-soft: #e8f0f4;
  --kc-option-hover: rgba(220, 231, 237, .55);
  --kc-line: #d8e2e8;
  --kc-background: #f5f8fa;
  --kc-text-secondary: var(--text-secondary);
  margin: 24px 0 32px;
  padding: 20px;
  border: 1px solid var(--kc-line);
  border-radius: 20px;
  background: var(--kc-background);
}

.g-root_theme_dark .knowledge-check {
  --kc-accent: #a7c0cf;
  --kc-accent-hover: #c2d7e3;
  --kc-accent-soft: #465a69;
  --kc-accent-soft-hover: #526b7b;
  --kc-selected-soft: #4a6271;
  --kc-option-hover: rgba(167, 192, 207, .15);
  --kc-line: var(--table-border);
  --kc-background: var(--background-neutral);
}

.knowledge-check,
.knowledge-check * {
  box-sizing: border-box;
}

.knowledge-check__heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
}

.knowledge-check__heading > div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}

.dc-doc-page .yfm .knowledge-check__title {
  margin: 0 !important;
  padding-top: 0;
  font-size: 22px;
  line-height: 1.3;
}

.knowledge-check__label {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--kc-accent-soft);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
}

.knowledge-check__time {
  margin-top: 4px;
  color: var(--kc-text-secondary);
  font-size: 13px;
  white-space: nowrap;
}

.dc-doc-page .yfm .knowledge-check__intro {
  margin: 4px 0 10px;
  color: var(--kc-text-secondary);
}

.knowledge-check__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  opacity: 0;
}

.knowledge-check__options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: 14px;
}

.knowledge-check__option {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  border: 1px solid transparent;
  border-radius: 16px;
  overflow: hidden;
  background: transparent;
  cursor: pointer;
  transition:
    border-color .2s ease,
    background-color .2s ease,
    box-shadow .2s ease,
    transform .2s ease;
}

.knowledge-check__option:hover {
  border-color: #afc3cf;
  background: var(--kc-option-hover);
  box-shadow: 0 10px 24px rgba(47, 67, 80, .09);
  transform: translateY(-3px);
}

.knowledge-check__visual {
  display: block;
  width: 100%;
  aspect-ratio: 1 / .82;
  overflow: hidden;
  background-color: #f2f2f2;
  /* Pass image clicks to the option label instead of Diplodoc's image viewer. */
  pointer-events: none;
}

.dc-doc-page .yfm .knowledge-check__visual p {
  width: 100%;
  height: 100%;
  margin: 0;
}

.dc-doc-page .yfm .knowledge-check__visual img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  margin: 0;
  border: 0;
  border-radius: 0;
  object-fit: cover;
}

.knowledge-check__copy {
  display: flex;
  padding: 10px 10px 9px;
  flex-direction: column;
  gap: 2px;
  line-height: 1.35;
}

.knowledge-check__copy strong {
  font-weight: 600;
}

.knowledge-check__copy span {
  color: var(--kc-text-secondary);
  font-size: 14px;
}

.knowledge-check__marker {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  width: 26px;
  height: 26px;
  border: 2px solid var(--kc-accent);
  border-radius: 8px;
  background: var(--kc-accent-soft);
  box-shadow: 0 2px 6px rgba(28, 48, 61, .22);
  transition: border-color .14s ease, background-color .14s ease;
}

.knowledge-check__marker::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 4px;
  width: 6px;
  height: 11px;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(45deg) scale(0);
  transform-origin: center;
  transition: transform .14s ease;
}

#main-practice-a:focus-visible ~ .knowledge-check__options label[for="main-practice-a"],
#main-practice-b:focus-visible ~ .knowledge-check__options label[for="main-practice-b"],
#main-practice-c:focus-visible ~ .knowledge-check__options label[for="main-practice-c"],
#additional-practice-a:focus-visible ~ .knowledge-check__options label[for="additional-practice-a"],
#additional-practice-b:focus-visible ~ .knowledge-check__options label[for="additional-practice-b"],
#additional-practice-c:focus-visible ~ .knowledge-check__options label[for="additional-practice-c"] {
  outline: 3px solid #afc3cf;
  outline-offset: 3px;
}

#main-practice-a:checked ~ .knowledge-check__options label[for="main-practice-a"],
#main-practice-b:checked ~ .knowledge-check__options label[for="main-practice-b"],
#main-practice-c:checked ~ .knowledge-check__options label[for="main-practice-c"],
#additional-practice-a:checked ~ .knowledge-check__options label[for="additional-practice-a"],
#additional-practice-b:checked ~ .knowledge-check__options label[for="additional-practice-b"],
#additional-practice-c:checked ~ .knowledge-check__options label[for="additional-practice-c"] {
  border-color: var(--kc-accent);
  background: var(--kc-selected-soft);
  box-shadow: 0 0 0 2px rgba(111, 135, 152, .14);
}

#main-practice-a:checked ~ .knowledge-check__options label[for="main-practice-a"] .knowledge-check__marker,
#main-practice-b:checked ~ .knowledge-check__options label[for="main-practice-b"] .knowledge-check__marker,
#main-practice-c:checked ~ .knowledge-check__options label[for="main-practice-c"] .knowledge-check__marker,
#additional-practice-a:checked ~ .knowledge-check__options label[for="additional-practice-a"] .knowledge-check__marker,
#additional-practice-b:checked ~ .knowledge-check__options label[for="additional-practice-b"] .knowledge-check__marker,
#additional-practice-c:checked ~ .knowledge-check__options label[for="additional-practice-c"] .knowledge-check__marker {
  border-color: var(--kc-accent-hover);
  background: var(--kc-accent);
}

#main-practice-a:checked ~ .knowledge-check__options label[for="main-practice-a"] .knowledge-check__marker::after,
#main-practice-b:checked ~ .knowledge-check__options label[for="main-practice-b"] .knowledge-check__marker::after,
#main-practice-c:checked ~ .knowledge-check__options label[for="main-practice-c"] .knowledge-check__marker::after,
#additional-practice-a:checked ~ .knowledge-check__options label[for="additional-practice-a"] .knowledge-check__marker::after,
#additional-practice-b:checked ~ .knowledge-check__options label[for="additional-practice-b"] .knowledge-check__marker::after,
#additional-practice-c:checked ~ .knowledge-check__options label[for="additional-practice-c"] .knowledge-check__marker::after {
  transform: rotate(45deg) scale(1);
}

.knowledge-check__feedback {
  display: none;
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid;
  border-radius: 16px;
}

.knowledge-check__feedback--correct {
  --kc-feedback-accent: #1f6b3a;
  border-color: var(--yfm-note-accent-tip-border);
  background: var(--yfm-note-accent-tip-bg);
  color: var(--text-primary);
}

.knowledge-check__feedback--incorrect {
  --kc-feedback-accent: #53778f;
  border-color: var(--yfm-note-accent-info-border);
  background: var(--yfm-note-accent-info-bg);
  color: var(--text-primary);
}

.knowledge-check__feedback-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
  font-weight: 700;
}

.knowledge-check__feedback-icon {
  width: 24px;
  height: 24px;
  display: inline-grid;
  flex: 0 0 24px;
  place-items: center;
  border-radius: 7px;
  background: var(--kc-feedback-accent);
  color: #fff;
  font-size: 14px;
  line-height: 1;
}

.knowledge-check__feedback--incorrect .knowledge-check__feedback-icon::before {
  content: "";
  width: 9px;
  height: 13px;
  background: currentColor;
  clip-path: polygon(0 0, 0 12px, 3px 9px, 5px 13px, 7px 12px, 5px 8px, 9px 8px);
  transform: translateY(1px) scaleX(-1);
}

.knowledge-check__feedback p {
  margin: 0;
}

.knowledge-check__retry {
  display: none;
  margin-top: 12px;
  padding: 9px 14px;
  border: 0;
  border-radius: 10px;
  background: var(--kc-accent-soft);
  color: var(--text-primary);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  width: fit-content;
}

.knowledge-check__retry:hover {
  background: var(--kc-accent-soft-hover);
}

.knowledge-check__retry:focus {
  display: inline-block;
}

.knowledge-check__retry:focus-visible {
  outline: 3px solid #afc3cf;
  outline-offset: 2px;
}

#main-practice-a:checked ~ .knowledge-check__feedbacks #main-practice-feedback-a,
#main-practice-b:checked ~ .knowledge-check__feedbacks #main-practice-feedback-b,
#main-practice-c:checked ~ .knowledge-check__feedbacks #main-practice-feedback-c,
#additional-practice-a:checked ~ .knowledge-check__feedbacks #additional-practice-feedback-a,
#additional-practice-b:checked ~ .knowledge-check__feedbacks #additional-practice-feedback-b,
#additional-practice-c:checked ~ .knowledge-check__feedbacks #additional-practice-feedback-c {
  display: block;
}

#main-practice-a:checked ~ .knowledge-check__retry,
#main-practice-b:checked ~ .knowledge-check__retry,
#main-practice-c:checked ~ .knowledge-check__retry,
#additional-practice-a:checked ~ .knowledge-check__retry,
#additional-practice-b:checked ~ .knowledge-check__retry,
#additional-practice-c:checked ~ .knowledge-check__retry {
  display: inline-block;
}

@media (max-width: 720px) {
  .knowledge-check {
    padding: 16px;
  }

  .knowledge-check__heading {
    display: block;
  }

  .knowledge-check__time {
    display: block;
    margin-top: 10px;
    white-space: normal;
  }

  .knowledge-check__options {
    grid-template-columns: 1fr;
  }

  .knowledge-check__option {
    display: grid;
    grid-template-columns: minmax(120px, 42%) 1fr;
  }

  .knowledge-check__visual {
    height: 100%;
    min-height: 150px;
    aspect-ratio: 1 / .82;
  }

  .knowledge-check__copy {
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .knowledge-check *,
  .knowledge-check *::before,
  .knowledge-check *::after {
    transition: none !important;
  }
}

/* Text choices and short situations in the orders articles. */
.knowledge-check--text .knowledge-check__options {
  grid-template-columns: 1fr;
  gap: 8px;
}

.knowledge-check--text .knowledge-check__option {
  display: flex;
  min-height: 52px;
  justify-content: center;
  border-color: var(--kc-line);
}

.knowledge-check--text .knowledge-check__copy {
  padding: 13px 16px 13px 48px;
}

.knowledge-check__scene {
  width: min(100%, 280px);
  margin: 16px 0;
  overflow: hidden;
  border: 1px solid var(--kc-line);
  border-radius: 14px;
}

.dc-doc-page .yfm .knowledge-check__scene p {
  margin: 0;
}

.dc-doc-page .yfm .knowledge-check__scene img {
  display: block;
  width: 100%;
  height: auto;
  max-width: none;
  margin: 0;
  border: 0;
  border-radius: 0;
}

.knowledge-check__items {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.knowledge-check__item {
  width: min(132px, calc((100% - 32px) / 2));
  overflow: hidden;
  border: 1px solid var(--kc-line);
  border-radius: 10px;
  background: var(--kc-background);
  font-weight: 600;
  text-align: center;
}

.dc-doc-page .yfm .knowledge-check__item-visual p {
  margin: 0;
}

.dc-doc-page .yfm .knowledge-check__item-visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: none;
  margin: 0;
  border: 0;
  border-radius: 0;
}

.knowledge-check__item-name {
  display: block;
  padding: 7px 8px;
}

.knowledge-check__chat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  max-width: 640px;
  margin: 16px 0;
}

.knowledge-check__chat-bubble {
  max-width: 85%;
  padding: 11px 15px;
  border-radius: 15px;
  background: #eaf6ed;
  color: var(--text-primary);
}

.knowledge-check__chat-bubble--seller {
  align-self: flex-end;
  background: #eaf3fb;
}

.g-root_theme_dark .knowledge-check__chat-bubble {
  background: #263d31;
}

.g-root_theme_dark .knowledge-check__chat-bubble--seller {
  background: #273a49;
}

.dc-doc-page .yfm .knowledge-check__chat-bubble p {
  margin: 0;
}

#pack-mat-a:focus-visible ~ .knowledge-check__options label[for="pack-mat-a"],
#pack-mat-b:focus-visible ~ .knowledge-check__options label[for="pack-mat-b"],
#pack-mat-c:focus-visible ~ .knowledge-check__options label[for="pack-mat-c"],
#pack-pair-a:focus-visible ~ .knowledge-check__options label[for="pack-pair-a"],
#pack-pair-b:focus-visible ~ .knowledge-check__options label[for="pack-pair-b"],
#pack-pair-c:focus-visible ~ .knowledge-check__options label[for="pack-pair-c"],
#chat-date-a:focus-visible ~ .knowledge-check__options label[for="chat-date-a"],
#chat-date-b:focus-visible ~ .knowledge-check__options label[for="chat-date-b"],
#chat-date-c:focus-visible ~ .knowledge-check__options label[for="chat-date-c"],
#chat-reply-a:focus-visible ~ .knowledge-check__options label[for="chat-reply-a"],
#chat-reply-b:focus-visible ~ .knowledge-check__options label[for="chat-reply-b"],
#chat-reply-c:focus-visible ~ .knowledge-check__options label[for="chat-reply-c"] {
  outline: 3px solid #afc3cf;
  outline-offset: 3px;
}

#pack-mat-a:checked ~ .knowledge-check__options label[for="pack-mat-a"],
#pack-mat-b:checked ~ .knowledge-check__options label[for="pack-mat-b"],
#pack-mat-c:checked ~ .knowledge-check__options label[for="pack-mat-c"],
#pack-pair-a:checked ~ .knowledge-check__options label[for="pack-pair-a"],
#pack-pair-b:checked ~ .knowledge-check__options label[for="pack-pair-b"],
#pack-pair-c:checked ~ .knowledge-check__options label[for="pack-pair-c"],
#chat-date-a:checked ~ .knowledge-check__options label[for="chat-date-a"],
#chat-date-b:checked ~ .knowledge-check__options label[for="chat-date-b"],
#chat-date-c:checked ~ .knowledge-check__options label[for="chat-date-c"],
#chat-reply-a:checked ~ .knowledge-check__options label[for="chat-reply-a"],
#chat-reply-b:checked ~ .knowledge-check__options label[for="chat-reply-b"],
#chat-reply-c:checked ~ .knowledge-check__options label[for="chat-reply-c"] {
  border-color: var(--kc-accent);
  background: var(--kc-selected-soft);
  box-shadow: 0 0 0 2px rgba(111, 135, 152, .14);
}

#pack-mat-a:checked ~ .knowledge-check__options label[for="pack-mat-a"] .knowledge-check__marker,
#pack-mat-b:checked ~ .knowledge-check__options label[for="pack-mat-b"] .knowledge-check__marker,
#pack-mat-c:checked ~ .knowledge-check__options label[for="pack-mat-c"] .knowledge-check__marker,
#pack-pair-a:checked ~ .knowledge-check__options label[for="pack-pair-a"] .knowledge-check__marker,
#pack-pair-b:checked ~ .knowledge-check__options label[for="pack-pair-b"] .knowledge-check__marker,
#pack-pair-c:checked ~ .knowledge-check__options label[for="pack-pair-c"] .knowledge-check__marker,
#chat-date-a:checked ~ .knowledge-check__options label[for="chat-date-a"] .knowledge-check__marker,
#chat-date-b:checked ~ .knowledge-check__options label[for="chat-date-b"] .knowledge-check__marker,
#chat-date-c:checked ~ .knowledge-check__options label[for="chat-date-c"] .knowledge-check__marker,
#chat-reply-a:checked ~ .knowledge-check__options label[for="chat-reply-a"] .knowledge-check__marker,
#chat-reply-b:checked ~ .knowledge-check__options label[for="chat-reply-b"] .knowledge-check__marker,
#chat-reply-c:checked ~ .knowledge-check__options label[for="chat-reply-c"] .knowledge-check__marker {
  border-color: var(--kc-accent-hover);
  background: var(--kc-accent);
}

#pack-mat-a:checked ~ .knowledge-check__options label[for="pack-mat-a"] .knowledge-check__marker::after,
#pack-mat-b:checked ~ .knowledge-check__options label[for="pack-mat-b"] .knowledge-check__marker::after,
#pack-mat-c:checked ~ .knowledge-check__options label[for="pack-mat-c"] .knowledge-check__marker::after,
#pack-pair-a:checked ~ .knowledge-check__options label[for="pack-pair-a"] .knowledge-check__marker::after,
#pack-pair-b:checked ~ .knowledge-check__options label[for="pack-pair-b"] .knowledge-check__marker::after,
#pack-pair-c:checked ~ .knowledge-check__options label[for="pack-pair-c"] .knowledge-check__marker::after,
#chat-date-a:checked ~ .knowledge-check__options label[for="chat-date-a"] .knowledge-check__marker::after,
#chat-date-b:checked ~ .knowledge-check__options label[for="chat-date-b"] .knowledge-check__marker::after,
#chat-date-c:checked ~ .knowledge-check__options label[for="chat-date-c"] .knowledge-check__marker::after,
#chat-reply-a:checked ~ .knowledge-check__options label[for="chat-reply-a"] .knowledge-check__marker::after,
#chat-reply-b:checked ~ .knowledge-check__options label[for="chat-reply-b"] .knowledge-check__marker::after,
#chat-reply-c:checked ~ .knowledge-check__options label[for="chat-reply-c"] .knowledge-check__marker::after {
  transform: rotate(45deg) scale(1);
}

#pack-mat-a:checked ~ .knowledge-check__feedbacks #pack-mat-feedback-a,
#pack-mat-b:checked ~ .knowledge-check__feedbacks #pack-mat-feedback-b,
#pack-mat-c:checked ~ .knowledge-check__feedbacks #pack-mat-feedback-c,
#pack-pair-a:checked ~ .knowledge-check__feedbacks #pack-pair-feedback-a,
#pack-pair-b:checked ~ .knowledge-check__feedbacks #pack-pair-feedback-b,
#pack-pair-c:checked ~ .knowledge-check__feedbacks #pack-pair-feedback-c,
#chat-date-a:checked ~ .knowledge-check__feedbacks #chat-date-feedback-a,
#chat-date-b:checked ~ .knowledge-check__feedbacks #chat-date-feedback-b,
#chat-date-c:checked ~ .knowledge-check__feedbacks #chat-date-feedback-c,
#chat-reply-a:checked ~ .knowledge-check__feedbacks #chat-reply-feedback-a,
#chat-reply-b:checked ~ .knowledge-check__feedbacks #chat-reply-feedback-b,
#chat-reply-c:checked ~ .knowledge-check__feedbacks #chat-reply-feedback-c {
  display: block;
}

#pack-mat-a:checked ~ .knowledge-check__retry,
#pack-mat-b:checked ~ .knowledge-check__retry,
#pack-mat-c:checked ~ .knowledge-check__retry,
#pack-pair-a:checked ~ .knowledge-check__retry,
#pack-pair-b:checked ~ .knowledge-check__retry,
#pack-pair-c:checked ~ .knowledge-check__retry,
#chat-date-a:checked ~ .knowledge-check__retry,
#chat-date-b:checked ~ .knowledge-check__retry,
#chat-date-c:checked ~ .knowledge-check__retry,
#chat-reply-a:checked ~ .knowledge-check__retry,
#chat-reply-b:checked ~ .knowledge-check__retry,
#chat-reply-c:checked ~ .knowledge-check__retry {
  display: inline-block;
}