:root {
  --quality-sidebar-width: 16.25rem;
  --quality-detail-gap: 3.75rem;
  --quality-block-height: auto;
  --quality-media-width: 30.75rem;
  --quality-list-gap: 0.875rem;
  --quality-body-pt: 1.75rem;
  --quality-body-pr: 2rem;
  --quality-body-pb: 2rem;
  --quality-body-pl: 0.9375rem;
  --quality-body-padding: var(--quality-body-pt) var(--quality-body-pr) var(--quality-body-pb) var(--quality-body-pl);
  --quality-media-content-gap: 3rem;
  --quality-num-top: 1.25rem;
  --quality-num-right: 1.5rem;
  --quality-num-height: 5rem;
  --quality-head-gap: 1rem;
  --quality-head-margin-bottom: 1.25rem;
  --quality-head-padding-bottom: 1.25rem;
  --quality-head-padding-right: 5rem;
  --quality-title-size: 2rem;
  --quality-title-margin-bottom: 0.5rem;
  --quality-subtitle-size: 1rem;
  --quality-icon-size: 3.75rem;
  --quality-icon-img-size: 3.75rem;
  --quality-list-font-size: 1.25rem;
}

.quality-page .catalog__inner {
  gap: var(--quality-detail-gap);
  min-width: 0;
}

/* Sidebar */
.quality-sidebar {
  flex: 0 0 var(--quality-sidebar-width);
  width: var(--quality-sidebar-width);
}

.quality-sidebar__title {
  font-family: var(--font-family-base);
  font-size: 2.125rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 2.1875rem;
}

.quality-nav {
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.quality-nav li+li {
  border-top: 1px solid var(--color-border-light);
}

.quality-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  height: 3.75rem;
  padding: 0;
  border: 0;
  font-family: var(--font-family-base);
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--color-text-primary);
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s ease;
}

.quality-nav__link:hover,
.quality-nav__link:focus-visible {
  color: var(--color-brand-primary);
}

.quality-nav__link--active {
  color: var(--color-brand-primary);
  font-weight: 700;
}

.quality-nav__left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.quality-nav__icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  object-fit: contain;
}

.quality-nav__arrow {
  flex-shrink: 0;
  width: 0.8125rem;
  height: 1.3125rem;
  object-fit: contain;
}

/* Main content */
.quality-main {
  flex: 1;
  min-width: 0;
}

.quality-panel {
  display: none;
  flex-direction: column;
  gap: 2rem;
}

.quality-panel--active {
  display: flex;
}

.quality-panel[data-quality-panel="certificate"],
.quality-panel[data-quality-panel="report"] {
  gap: 1rem;
}

/* Document list */
.quality-docs {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.quality-doc {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 6.25rem;
  padding: 1.5rem 2rem;
  border: 1px solid var(--color-border-light);
  border-radius: 0.5rem;
  background: var(--color-bg-page);
}

.quality-doc__info {
  flex: 1;
  min-width: 0;
}

.quality-doc__title {
  font-family: var(--font-family-base);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.quality-doc__file {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  font-family: var(--font-family-base);
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.4;
  color: var(--color-text-muted);
}

.quality-doc__file span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.quality-doc__pdf {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.5rem;
  object-fit: contain;
}

.quality-doc__download {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.25rem;
  transition: background 0.2s ease;
}

.quality-doc__download:hover,
.quality-doc__download:focus-visible {
  background: #f0f4fa;
}

.quality-doc__download img {
  width: 1.75rem;
  height: 1.875rem;
  object-fit: contain;
  opacity: 0.45;
  transition: opacity 0.2s ease;
}

.quality-doc__download:hover img,
.quality-doc__download:focus-visible img {
  opacity: 0.75;
}

.quality-block {
  position: relative;
  display: flex;
  align-items: stretch;
  min-height: var(--quality-block-height);
  border-radius: 4px;
  overflow: hidden;
}

.quality-block--reverse {
  flex-direction: row-reverse;
}

.quality-block__media {
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
  width: var(--quality-media-width);
  max-width: 100%;
  align-self: flex-start;
}

.quality-block__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.quality-block__col {
  position: relative;
  z-index: 1;
  flex: 1 1 0;
  min-width: 0;
}

.quality-block__col--shade {
  background: #f6f6f6;
}

.quality-block:not(.quality-block--reverse) .quality-block__col--shade {
  border-radius: 0 0.5rem 0.5rem 0;
}

.quality-block--reverse .quality-block__col--shade {
  border-radius: 0.5rem 0 0 0.5rem;
}

.quality-block__body {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: var(--quality-body-padding);
  background: transparent;
}

.quality-block:not(.quality-block--reverse) .quality-block__body {
  padding-left: calc(var(--quality-media-content-gap) + var(--quality-body-pl));
}

.quality-block--reverse .quality-block__body {
  padding-left: 0;
  padding-right: var(--quality-media-content-gap);
}

.quality-block--reverse .quality-block__num {
  right: var(--quality-media-content-gap);
}

.quality-block__num {
  position: absolute;
  top: var(--quality-num-top);
  right: var(--quality-num-right);
  width: auto;
  height: var(--quality-num-height);
  pointer-events: none;
}

.quality-block__head {
  display: flex;
  align-items: flex-start;
  gap: var(--quality-head-gap);
  margin-bottom: var(--quality-head-margin-bottom);
  padding-bottom: var(--quality-head-padding-bottom);
  padding-right: var(--quality-head-padding-right);
  border-bottom: 1px solid #dde2e8;
}

.quality-block__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: var(--quality-icon-size);
  height: var(--quality-icon-size);
}

.quality-block__icon img {
  width: var(--quality-icon-img-size);
  height: var(--quality-icon-img-size);
  object-fit: contain;
}

.quality-block__title {
  font-family: var(--font-family-base);
  font-size: var(--quality-title-size);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.3;
  margin-bottom: var(--quality-title-margin-bottom);
}

.quality-block__subtitle {
  font-family: var(--font-family-base);
  font-size: var(--quality-subtitle-size);
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.quality-block__list {
  display: flex;
  flex-direction: column;
  gap: var(--quality-list-gap);
}

.quality-block__list li {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-family-base);
  font-size: var(--quality-list-font-size);
  font-weight: 400;
  line-height: 1.75;
  color: var(--color-text-primary);
}

.quality-block__list-icon {
  flex-shrink: 0;
  width: 0.875rem;
  height: 0.875rem;
  object-fit: contain;
}

.quality-block__list-text {
  flex: 1;
  min-width: 0;
}