/* BLOCK */
.info-banner {
  --info-banner-bg: var(--surface);
  --info-banner-border: var(--border);
  --info-banner-accent: var(--link);
  --info-banner-text: var(--text);

  background: var(--info-banner-bg);
  border: 1px solid var(--info-banner-border);
  /* border-left: 6px solid var(--info-banner-accent); */
  border-radius: 8px;
  color: var(--info-banner-text);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.info-banner::after {
  content: "";
  position: absolute;
  height: 100%;
  width: 7px;
  background: var(--link);
  left: 0;
  top: 0;
}

/* INNER LAYOUT */
.info-banner__inner {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 18px;
}

/* ICON */
.info-banner__icon {
  flex-shrink: 0;
  font-size: 20px;
  line-height: 1;
  color: var(--info-banner-accent);
  margin-top: 2px; /* optical alignment with heading */
}

/* CONTENT */
.info-banner__content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* TITLE */
.info-banner__title {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}

/* TEXT */
.info-banner__text {
  font-size: 14px;
  margin: 0;
  color: #4a5a67;
}

/* MODIFIERS */

/* Neutral (default) */
.info-banner--neutral {
}

/* Info / brand */
.info-banner--info {
  --info-banner-accent: var(--link);
}

/* Success */
.info-banner--success {
  --info-banner-accent: var(--c-success);
}

/* Warning */
.info-banner--warning {
  --info-banner-accent: var(--c-warning);
}

/* Error */
.info-banner--error {
  --info-banner-accent: var(--c-danger);
}

.page-header__bar {
  gap: var(--space-3);
}

.page-header__actions {
  flex-wrap: wrap;
}

.progress {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.progress-label {
  color: var(--text-muted);
  font-size: var(--text-xs);
  display: none;
}

.progress-circle {
  --size: 48px;
  --stroke: 12.5; /* thinner for smaller size */
  --progress: 50;
  --circumference: 289.03;

  position: relative;
  width: var(--size);
  height: var(--size);
  display: inline-flex;
  place-items: center;
}

.progress-circle:hover {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
  border: var(--border-1);
  cursor: unset;
}

.progress-circle__svg {
  width: 48px;
  height: 48px;
  transform: rotate(-90deg) scale(1.175);
}

.progress-circle__track,
.progress-circle__value {
  fill: none;
  stroke-width: var(--stroke);
}

.progress-circle__track {
  stroke: #d9dde1;
}

.progress-circle__value {
  stroke: var(--link);
  stroke-linecap: round;
  stroke-dasharray: var(--circumference);
  stroke-dashoffset: calc(
    var(--circumference) - (var(--circumference) * var(--progress) / 100)
  );
  transition: stroke-dashoffset 0.35s ease;
}

.progress-circle__label {
  position: absolute;
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1;
  color: var(--link-hover);
}

.metadata-block__section:not(:last-of-type) {
  padding-bottom: var(--space-6);
  position: relative;
  margin-bottom: var(--space-6);
  border-bottom: none;
}

.metadata-block__section:not(:last-of-type):after {
  position: absolute;
  content: "";
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border);
  margin-inline: calc(var(--space-6) * -1);
}

.metadata-block__sub-section:not(:last-of-type) {
  padding-bottom: var(--space-6);
}

.anchors-wrap {
  position: sticky;
  margin-inline: calc((var(--space-6)) * -1);
  padding: var(--space-6);
  top: 0;
  background: var(--surface);
  margin-block-start: -16px;
  margin-block-end: var(--space-4);
  z-index: 1;
  border-bottom: var(--border-1);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.anchors-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: var(--border-1);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-xs);
}

.anchors {
  display: none;
  position: absolute;
  z-index: 20;
  top: calc(100% - 22px) !important;
  left: 0;
  right: 0;
  border: var(--border-1);
  border-radius: var(--radius-sm);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
  border-top: 0;
  margin-inline: var(--space-6);
  overflow: hidden;
}

.anchors[aria-hidden="false"] {
  display: grid;
}

.anchor {
  display: block;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-none);
  background: transparent;
  text-decoration: none;
  font-weight: 500;
}

.anchor:hover {
  background: var(--surface-1);
}

.anchor i {
  width: var(--space-4);
  text-align: center;
  margin-inline-end: var(--space-4);
}

.resource__size-link::after {
  content: "\f35d"; /* arrow-up-right-from-square */
  font-family: "Font Awesome 6 Free";
  font-weight: 900; /* required for solid icons */

  margin-left: 0.4rem;
  display: inline-block;
}

.keywords-list {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  row-gap: var(--space-3);
  min-width: 0;
  column-gap: var(--space-2);
}

.keywords-item a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2, 0.5rem) var(--space-3, 0.75rem);
  border-radius: var(--radius-sm);
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  font-size: var(--text-sm);
  background: color-mix(in srgb, var(--link) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--link) 10%, transparent);
  color: var(--link);
}

.keywords-item a:hover {
  background: color-mix(in srgb, var(--link) 15%, transparent);
  border: 1px solid var(--link);
  color: var(--link-hover);
}

.course-contents__list {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

.course-contents__list {
  background: var(--course-contents-bg);
  border-radius: var(--course-contents-radius);
  border: var(--course-contents-border);
}

.course-contents__item {
  padding: var(--course-item-padding);
  background: transparent;
  transition: all var(--dur-3) var(--ease-standard);
  border-bottom: var(--course-item-border-bottom);
}

.course-contents__item:has(.course-contents__link:hover),
.course-contents__item:has(.course-contents__link:focus-visible) {
  background: var(--course-item-hover-bg);
}

.course-contents__link {
  text-decoration: none;
  display: flex;
  gap: var(--course-item-gap);
}

.course-contents__status-icon {
  font-style: normal;
  width: var(--space-4);
  display: block;
}

.course-contents__status-icon::before {
  font-family: "Font Awesome 6 Free";
  display: inline-block;
  line-height: 1;
}

.course-contents__status-icon::before {
  content: "\f111"; /* circle */
  font-weight: 400;
  color: var(--course-item-default-color);
}

.course-contents__item--completed .course-contents__status-icon::before {
  content: "\f058"; /* circle-check */
  font-weight: 900;
  color: var(--course-item-success-color);
}

.course-contents__item--upcoming .course-contents__status-icon::before {
  content: "\f073"; /* calendar */
  font-weight: 900;
  color: var(--course-item-default-color);
}

.course-contents__item--locked .course-contents__status-icon::before {
  content: "\f023"; /* padlock */
  font-weight: 900;
  color: var(--course-item-default-color);
}

.course-contents__body {
  flex-grow: 1;
}

.course-contents__label {
  color: var(--surface);
  font-size: var(--text-xs);
  border: 1px solid var(--surface);
  border-color: color-mix(in srgb, var(--surface) 66%, transparent);;
  width: fit-content;
  border-radius: 4px;
  padding-inline: var(--space-2);
  padding-block: var(--space-);
  margin-bottom: var(--space-1);
  background: color-mix(in srgb, var(--surface) 10%, transparent);
}

.course-contents__item-title {
  color: var(--course-item-title-color);
  font-weight: 500;
  font-size: var(--course-item-title-size);
  margin-bottom: var(--course-item-title-margin) !important;
}

.course-contents__meta {
  color: var(--course-item-meta-color);
  font-size: var(--course-item-meta-size);
  display: flex;
  column-gap: var(--space-2);
  flex-wrap: wrap;
}

.course-contents__format-icon {
  font-style: normal;
  margin-right: var(--space-1);
}

.course-contents__format-icon::before {
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  display: inline-block;
  line-height: 1;
}

.course-contents__item--video .course-contents__format-icon::before {
  content: "\f03d"; /* video */
}

.course-contents__item--audio .course-contents__format-icon::before {
  content: "\f028"; /* audio */
}

.course-contents__item--reading .course-contents__format-icon::before {
  content: "\f15c"; /* text */
}

.course-contents__item--assessment .course-contents__format-icon::before {
  content: "\f0ae"; /* checklist */
}

.course-contents__item--module .course-contents__format-icon::before {
  content: "\f1b2"; /* cube */
}

.course-contents__item--webinar .course-contents__format-icon::before {
  content: "\f519"; /* signal */
}

.course-contents__item--survey .course-contents__format-icon::before {
  content: "\f681"; /* poll */
}

.course-contents__item--certificate .course-contents__format-icon::before {
  content: "\f559"; /* award */
}

.course-contents__item--active {
  position: relative;
  background: color-mix(in srgb, var(--link) 15%, var(--text-strong));
}

.course-contents__item--active:has(.course-contents__link:hover),
.course-contents__item--active:has(.course-contents__link:focus-visible) {
  background: color-mix(in srgb, var(--link) 20%, var(--text-strong));
}

.course-contents__item--active::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 1px;
  background: var(--surface-2);
  width: 6px;
}

.course-contents__chapter {
}
.course-contents__chapter-toggle {
  padding: var(--course-item-padding);
  transition: all var(--dur-3) var(--ease-standard);
  border: none;
  border-bottom: var(--course-item-border-bottom);
  background: transparent;
  width: 100%;
  text-align: unset;
}

.course-contents__chapter-toggle:hover {
  background: var(--chapter-toggle-hover);
}
/* .course-contents__chapter-panel {
} */
.course-contents__chapter-list {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: color-mix(in srgb, var(--link) 15%, transparent);
}

.course-contents__chapter-list .course-contents__item {
  border-bottom: var(--course-item-border-bottom);
  background: var(--chapter-item-bg);
}

.course-contents__chapter-list .course-contents__item:hover {
  background: var(--chapter-item-hover-bg);
}
.course-contents__chapter-icon {
  transform: rotate(0);
  width: var(--space-8);
  height: var(--space-8);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: all var(--dur-3) var(--ease-standard);
  background: transparent;
  border-radius: var(--radius-sm);
  color: var(--chapter-icon-color);
}

.course-contents__chapter-toggle:hover .course-contents__chapter-icon {
  background: var(--chapter-item-toggle-hover-bg);
}

.course-contents__chapter-toggle[aria-expanded="true"]
  .course-contents__chapter-icon {
  transform: rotate(180deg);
}

.course-contents__chapter-main {
  text-decoration: none;
  display: flex;
  gap: var(--course-item-gap);
}

.course-contents__chapter-eyebrow {
  color: var(--course-item-title-color);
  font-weight: 500;
  font-size: var(--course-item-title-size);
  margin-bottom: var(--course-item-title-margin);
  width: var(--space-4);
  display: block;
  text-align: end;
}

.course-contents__chapter-body {
  flex-grow: 1;
}

.course-contents__chapter-title {
  color: var(--course-item-title-color);
  font-weight: 500;
  font-size: var(--course-item-title-size);
  margin-bottom: var(--course-item-title-margin);
  line-height: 1;
}

.course-contents__chapter-meta {
  color: var(--course-item-meta-color);
  font-size: var(--course-item-meta-size);
  display: flex;
  gap: var(--space-2);
}

.course-contents--lesson
  .course-contents__item--completed
  .course-contents__status-icon {
  position: relative;
}

.course-contents--lesson
  .course-contents__item--completed
  .course-contents__status-icon::before {
  z-index: 1;
  position: relative;
}

.course-contents--lesson
  .course-contents__item--completed
  .course-contents__status-icon::after {
  content: "";
  position: absolute;
  inset: 40% 0;
  background: #fff;
  border-radius: 50%;
  z-index: 0;
}

.course-contents--lesson {
  height: 100%;
  background: var(--course-contents-bg);
}

.course-contents--overview {
  --course-contents-bg: var(--surface-1);
  --course-contents-radius: var(--radius-md);
  --course-contents-border: var(--border-1);

  --course-item-hover-bg: var(--surface-2);
  --course-item-border-bottom: var(--border-1);
  --course-item-padding: var(--space-4) var(--space-6);
  --course-item-gap: var(--space-4);
  --course-item-success-color: var(--c-success);
  --course-item-default-color: var(--text-muted);

  --course-item-title-color: var(--text);
  --course-item-title-size: var(--text-sm);
  --course-item-title-margin: var(--space-1);
  --course-item-meta-color: var(--text-muted);
  --course-item-meta-size: var(--text-xs);

  --chapter-item-bg: color-mix(in srgb, var(--surface-1) 20%, var(--surface));
  --chapter-item-hover-bg: color-mix(
    in srgb,
    var(--surface-1) 40%,
    var(--surface)
  );

  --chapter-toggle-hover: var(--surface-2);
  --chapter-icon-color: var(--course-item-title-color);
  --chapter-item-toggle-hover-bg: var(--surface-2);
  --chapter-item-hover-bg: var(--surface-2);
}

.course-contents--lesson {
  --course-contents-bg: color-mix(in srgb, var(--link) 40%, var(--text-strong));
  --course-contents-radius: var(--radius-none);
  --course-contents-border: none;

  --course-item-hover-bg: color-mix(
    in srgb,
    var(--link) 45%,
    var(--text-strong)
  );
  --course-item-border-bottom: 1px solid var(--text-strong);
  --course-item-padding: var(--space-4) var(--space-6);
  --course-item-gap: var(--space-4);
  --course-item-success-color: var(--c-success);
  --course-item-default-color: color-mix(
    in srgb,
    var(--surface-2) 80%,
    transparent
  );
  --course-item-title-color: var(--surface);
  --course-item-title-size: var(--text-sm);
  --course-item-title-margin: var(--space-0);
  --course-item-meta-color: color-mix(
    in srgb,
    var(--surface-2) 80%,
    transparent
  );
  --course-item-meta-size: var(--text-xs);

  --chapter-item-bg: color-mix(in srgb, var(--surface-1) 15%, var(--surface));
  --chapter-item-hover-bg: color-mix(
    in srgb,
    var(--surface-1) 15%,
    var(--surface)
  );

  --chapter-toggle-hover: var(--course-item-hover-bg);
  --chapter-icon-color: var(--course-item-title-color);
  --chapter-item-toggle-hover-bg: color-mix(
    in srgb,
    var(--link) 60%,
    var(--text-strong)
  );

  --chapter-item-bg: color-mix(in srgb, var(--link) 20%, var(--text-strong));
  --chapter-item-hover-bg: color-mix(
    in srgb,
    var(--link) 25%,
    var(--text-strong)
  );
}

#course__Lesson {
  display: none;
}

body.is-in-lesson #course__Overview {
  display: none;
}

body.is-in-lesson #course__Lesson {
  display: block;
}

body.is-in-lesson .page-header__img,
body.is-in-lesson .page-header__btn-row,
body.is-in-lesson .page-header__meta {
  display: none;
}

body.is-in-lesson .page-header__title {
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.page-header__title-lesson {
  display: none;
}

body.is-in-lesson .page-header__title-lesson {
  display: block;
  margin: 0;
  font-size: var(--h2);
  line-height: var(--leading-tight);
  font-weight: 500;
  min-width: 0;
  color: var(--text-strong);
}

.lesson-block {
  position: relative;
  overflow: hidden;
  border: var(--border-1, 1px solid rgba(0, 0, 0, 0.08));
  border-radius: var(--radius-lg, 16px);
  background: var(--surface, #fff);
  box-shadow: var(--shadow-md);
  max-width: 1376px;
  margin-block-end: var(--space-8);
}

.course__sidebar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  transform: translateX(-100%);
  overflow: scroll;
  transition: all var(--dur-3) var(--ease-standard);
  z-index: 1;
}

.course__sidebar--open {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  transform: translateX(0);
}

.lesson__backdrop {
  opacity: 0;
  visibility: hidden;
  display: none;
}

.lesson__actions {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  row-gap: var(--space-2);
  column-gap: var(--space-2);
  padding-block: var(--space-4);
  padding-inline: var(--space-6);
  border-block-end: var(--border-1);
}

.lesson__action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  padding-inline: var(--space-1);
  border-radius: var(--radius-sm);
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  font-size: var(--text-sm);
  border: none;
  gap: var(--space-3);
  flex-grow: 1;
}

.lesson__action i {
  display: none;
}

.lesson__action--display-contents {
  width: 100%;
  background-color: var(--c-primary);
  color: var(--surface);
}

.lesson__action--display-contents:hover {
  background-color: var(--link-hover);
}

.lesson__action--display-contents svg {
  transform: rotate(180deg);
}
.course-contents__action--display-contents {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  background: var(--course-contents-bg);
  color: var(--course-item-title-color);
  font-size: var(--course-item-title-size);
  padding: var(--course-item-padding);
  gap: var(--course-item-gap);
  border: none;
  border-bottom: var(--course-item-border-bottom);
  width: 100%;
}

.course-contents__action--display-contents:hover {
  background: var(--course-item-hover-bg);
}

.course-contents__action--display-contents svg {
  width: var(--space-4);
  overflow: visible;
  display: block;
}

.lesson__action--back,
.lesson__action--next {
  border: 1px solid var(--link);
  background: transparent;
  color: var(--link);
}

.lesson__action--complete {
  background: var(--link);
  color: var(--surface);
}

.lesson__hero {
  background: color-mix(in srgb, var(--text-muted) 5%, var(--surface-2));
  padding-inline: var(--space-6);
  padding-block: var(--space-4);
  display: none;
}

.lesson__hero--active {
  display: block;
}

.media-primary {
  margin-block: var(--space-0);
}

.lesson__information {
  padding-inline: 0 !important;
}

.btn--contributor {
  padding: var(--btn-pad-y-sm) var(--space-1);
  font-weight: 500;
  text-decoration: underline;
  position: relative;
  left: calc(var(--space-1) * -1);
}

.btn--contributor:hover {
  background: var(--surface-1);
}

.lesson__meta {
  padding-block-end: var(--space-2);
  margin-block-end: var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.lesson__meta .course-contents__meta-separator {
  color: var(--text);
}

/* -------------------------------------------------------------------------
   Contributor modal
   ------------------------------------------------------------------------- */

.contributor-modal .modal__panel {
  position: relative;
  inline-size: min(32rem, calc(100vw - 2rem));
  max-block-size: calc(100vh - 2rem);
  overflow: auto;
  border-radius: var(--radius-lg);
  max-inline-size: 32rem;
}

.contributor-modal__body {
  display: grid;
  gap: var(--space-6);
}

.contributor-modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 2;
}

.contributor-modal__hero {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contributor-modal__media {
  flex: 0 0 auto;
}

.contributor-modal__image {
  display: block;
  inline-size: 7.5rem;
  block-size: 7.5rem;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-inline: auto;
}

.contributor-modal__intro {
  min-inline-size: 0;
}

.contributor-modal__name {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xl);
  line-height: var(--leading-tight);
  color: var(--text);
}

.contributor-modal__abbreviation {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.contributor-modal__name:has(+ .contributor-modal__role) {
  margin-bottom: var(--space-1);
}

.contributor-modal__name:has(+ .contributor-modal__abbreviation) {
  margin-bottom: 0;
}

.contributor-modal__meta {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--text-muted);
}

.contributor-modal__meta + .contributor-modal__meta {
  margin-top: var(--space-1);
}

.contributor-modal__section {
  padding-top: var(--space-5);
  border-top: var(--border-1);
}

.contributor-modal__section-title {
  margin: 0 0 var(--space-4);
  font-size: var(--text-lg);
  line-height: var(--leading-tight);
  color: var(--text);
}

.contributor-modal__contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border: var(--border-1);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface);
}

.contributor-modal__contact-item + .contributor-modal__contact-item {
  border-top: var(--border-1);
}

.contributor-modal__contact-link {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: var(--space-3);
  align-items: center;
  padding: var(--space-3) var(--space-4);
  color: var(--link);
  text-decoration: none;
}

.contributor-modal__contact-link:hover {
  background: var(--surface-1);
  text-decoration: underline;
}

.contributor-modal__contact-link:focus-visible {
  outline: var(--focus);
  outline-offset: -2px;
}

.contributor-modal__contact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: currentColor;
}

.contributor-modal__contact-text {
  min-inline-size: 0;
  overflow-wrap: anywhere;
}

.contributor-modal__rich-text {
  color: var(--text-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
}

.contributor-modal__rich-text > * {
  margin: 0;
}

.contributor-modal__rich-text > p {
  font-size: var(--text-sm);
}

.contributor-modal__rich-text > * + * {
  margin-top: var(--space-4);
}

.contributor-modal__footer {
  padding-top: var(--space-5);
  border-top: var(--border-1);
  display: flex;
  justify-content: center;
}

.contributor-modal__button {
  min-inline-size: 10rem;
}

.contact-list__item--orcid .contact-list__icon {
  color: #a6ce39;
}

.contributor-modal__role {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-1);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  background: color-mix(in srgb, var(--link) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--link) 10%, transparent);
  color: var(--link);
  margin-bottom: var(--space-2);
}
.media-webinar__frame {
  overflow: visible !important;
  border: var(--border-1);
  border-radius: var(--radius-lg);
  background-color: transparent;
  box-shadow: var(--shadow-lg) !important;
  outline: 2px solid transparent;
  transition:
    box-shadow var(--dur-3) var(--ease-standard),
    outline-color var(--dur-3) var(--ease-standard);
}

.media-webinar__frame:hover {
  outline-color: var(--link);
  box-shadow: 0 12px 12px rgb(13 86 127 / 50%) !important;
}

.media-webinar__frame iframe {
  border-radius: var(--radius-lg);
  border: none;
}

.assessment-intro__continue {
  color: var(--text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-2);
}

.assessment-intro__header {
  margin-block-end: var(--space-8);
}

.metadata-block h2,
.lesson-block h2 {
  margin-block-end: var(--space-4);
  font-size: var(--h3);
  line-height: var(--leading-tight);
  font-weight: 500;
}

.metadata-block h3 {
  font-size: var(--h5);
  line-height: var(--leading-tight);
  font-weight: 500;
  margin-block-end: var(--space-4);
}

.assessment-intro__rules {
  font-size: var(--text-sm);
}

.assessment-intro__panel {
  margin-block-end: var(--space-8);
}

.assessment-intro__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-block: var(--space-3);
  padding-inline: var(--space-5);
  border-radius: var(--radius-sm);
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  font-size: var(--text-sm);
  border: none;
  gap: var(--space-3);
  background: var(--link);
  color: var(--surface);
}

.assessment-intro__btn:hover {
  background: var(--link-hover);
}

.assessment__panel {
  display: none;
}

.assessment__panel--active {
  display: block;
}

/* -------------------------------------------------------------------------
   Assessment: questions panel
   ------------------------------------------------------------------------- */

.assessment__form {
  display: grid;
  gap: var(--space-8);
}

.assessment__question-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-10);
}

.assessment__question {
  display: grid;
  gap: var(--space-2);
}

.assessment__question-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.metadata-block h3.assessment__question-number {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-tight);
  font-weight: 600;
  color: var(--link);
}

.assessment__question-body {
  display: grid;
  gap: var(--space-1);
}

.assessment__question-text {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
  color: var(--text);
}

.assessment__instruction {
  margin: 0;
  font-size: var(--text-md);
  line-height: var(--leading-normal);
  color: var(--text-muted);
}

.assessment__choices {
  margin: 0;
  padding: 0;
  border: 0;
  min-inline-size: 0;
  box-shadow: var(--shadow-sm);
  transition: all var(--dur-3) var(--ease-standard);
  border-radius: var(--radius-md);
}

.assessment__choices:hover {
  box-shadow: var(--shadow-md);
}

.assessment__choice {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-4) var(--space-5);
  border: var(--border-1);
  background: var(--surface);
  cursor: pointer;
  transition:
    border-color var(--dur-2) var(--ease-standard),
    background-color var(--dur-2) var(--ease-standard),
    box-shadow var(--dur-2) var(--ease-standard);
}

.assessment__choice:first-of-type {
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

.assessment__choice:last-of-type {
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

.assessment__choice + .assessment__choice {
  border-top: 0;
}

.assessment__choice:hover {
  background: var(--surface-1);
}

.assessment__choice-text {
  font-size: var(--text-md);
  line-height: var(--leading-normal);
  color: var(--text);
}

.assessment__control {
  position: relative;
  inline-size: 1.75rem;
  block-size: 1.75rem;
  flex: 0 0 auto;
  border: var(--border-1);
  border-color: var(--text-muted);
  background: var(--surface);
  transition:
    border-color var(--dur-2) var(--ease-standard),
    background-color var(--dur-2) var(--ease-standard),
    box-shadow var(--dur-2) var(--ease-standard);
}

/* Single choice = radio */
.assessment__question--single .assessment__control {
  border-radius: 50%;
}

/* Multiple choice = checkbox */
.assessment__question--multiple .assessment__control {
  border-radius: var(--radius-sm);
}

.assessment__input:focus-visible + .assessment__control {
  outline: var(--focus);
  outline-offset: 2px;
}

/* Checked styles */
.assessment__question--single
  .assessment__input:checked
  + .assessment__control {
  border-color: var(--link);
  border-width: 2px;
}

.assessment__question--single
  .assessment__input:checked
  + .assessment__control::after {
  content: "";
  position: absolute;
  inset: 0.2rem;
  border-radius: 50%;
  background: var(--link);
}

.assessment__question--multiple
  .assessment__input:checked
  + .assessment__control {
  border-color: var(--link);
  background: var(--link);
}

.assessment__question--multiple
  .assessment__input:checked
  + .assessment__control::after {
  content: "";
  position: absolute;
  left: 0.42rem;
  top: 0.14rem;
  inline-size: 0.45rem;
  block-size: 0.9rem;
  border: solid #fff;
  border-width: 0 0.14rem 0.14rem 0;
  transform: rotate(45deg);
}

.assessment__input:checked ~ .assessment__choice-text {
  font-weight: 600;
}

/* Disabled / review-ready compatibility */
.assessment__input:disabled + .assessment__control,
.assessment__input:disabled ~ .assessment__choice-text {
  opacity: 0.75;
  cursor: default;
}

.assessment__actions {
  display: flex;
  justify-content: flex-start;
  padding-top: var(--space-2);
}

.metadata-block h2.assessment-questions__title {
  margin-bottom: var(--space-8);
}

.assessment__question--text .assessment__input-group {
  display: block;
}

.assessment__textarea {
  width: 100%;
  min-height: 8rem;
  padding: var(--space-4) var(--space-5);

  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--text);

  background: color-mix(in srgb, var(--surface-1) 50%, transparent);
  border: var(--border-1);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);

  resize: vertical;

  transition:
    border-color var(--dur-2) var(--ease-standard),
    box-shadow var(--dur-2) var(--ease-standard);
  resize: none;
}

.assessment__textarea::placeholder {
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.assessment__textarea:focus {
  outline: none;
  border-color: var(--link);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--link) 25%, transparent);
}

.assessment__question--media .assessment__media {
  margin: 0;
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.assessment__image {
  display: block;
  width: 100%;
  max-width: 56rem;
  height: auto;
  border-radius: var(--radius-md);
  border: var(--border-1) solid var(--border-strong);
  background: var(--surface-1);
}

.assessment__caption {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--text-muted);
}

.assessment__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-block: var(--space-4);
  padding-inline: var(--space-6);
  border-radius: var(--radius-sm);
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  font-size: var(--text-md);
  border: none;
  gap: var(--space-3);
  background: var(--link);
  color: var(--surface);
}

.assessment__btn:disabled,
.assessment__btn[aria-disabled="true"] {
  cursor: not-allowed;
}

/* -------------------------------------------------------------------------
   Assessment validation
   ------------------------------------------------------------------------- */

.assessment__error-summary {
  /* display: grid; */
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  align-items: start;
  padding: var(--space-4) var(--space-5);
  border: 0.5px solid var(--c-danger);
  border-left: 6px solid var(--c-danger);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--c-danger) 5%, transparent);
  color: var(--c-danger);
  display: none;
}

.assessment__error-summary-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--c-danger);
}

.assessment__error-summary-title {
  margin: 0 0 var(--space-2);
  font-weight: 500;
  color: var(--c-danger);
  font-size: var(--text-sm);
}

.assessment__error-summary-list {
  margin: 0;
  color: var(--text);
}

.assessment__error-summary-list li {
  font-size: var(--text-sm);
}

.assessment__error-summary-list li::marker {
  color: var(--c-danger);
}

.assessment__error-summary-list li + li {
  margin-top: var(--space-1);
}

.assessment__error-summary-list a {
  color: inherit;
  text-decoration: underline;
}

.assessment__error {
  /* display: grid; */
  align-items: center;
  margin-block: var(--space-2);
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border: 0.5px solid var(--c-danger);
  border-left: 6px solid var(--c-danger);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--c-danger) 5%, transparent);
  color: var(--c-danger);
  display: none;
}

.assessment__error-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--c-danger);
}

.assessment__error-text {
  font-weight: 500;
  color: var(--c-danger);
  font-size: var(--text-sm);
}

.assessment__question--invalid .assessment__question-number {
  color: #b42318;
}

.assessment__question--invalid .assessment__textarea {
  border-color: var(--c-danger);
}

.assessment__question--invalid .assessment__choices {
  border-radius: var(--radius-md);
}

.assessment__question--invalid .assessment__choice:first-child {
  border-top-color: var(--c-danger);
}

.assessment__question--invalid .assessment__choice,
.assessment__question--invalid .assessment__choice + .assessment__choice {
  border-left-color: var(--c-danger);
  border-right-color: var(--c-danger);
}

.assessment__question--invalid .assessment__choice:last-child {
  border-bottom-color: var(--c-danger);
}

/* Optional stronger submit button disabled style */
.assessment__btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

.assessment__question-list--review .assessment__instruction {
  display: none;
}

.assessment__question-list--review
  .assessment__question--answered-incorrect
  .assessment__choice--incorrect {
  border-color: var(--c-danger);
  background: color-mix(in srgb, var(--c-danger) 5%, transparent);
}

.assessment__question-list--review
  .assessment__question--single.assessment__question--answered-incorrect
  .assessment__choice--incorrect
  .assessment__control::before {
  content: "";
  position: absolute;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  display: inline-block;
  line-height: 1;
  content: "\f057";
  color: var(--c-danger);
  top: -1px;
  left: -1px;
  font-size: 1.5rem;
}

.assessment__question-list--review
  .assessment__choice--incorrect
  .assessment__control {
  border-color: var(--c-danger);
  border-radius: 50%;
}

.assessment__question-list--review
  .assessment__question--multiple.assessment__question--answered-incorrect
  .assessment__choice--incorrect
  .assessment__control::before {
  content: "";
  position: absolute;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  display: inline-block;
  line-height: 1;
  content: "\f057";
  color: var(--c-danger);
  top: -1px;
  left: -1px;
  font-size: 1.5rem;
}

.assessment__question-list--review
  .assessment__question--answered-incorrect
  .assessment__choice--correct {
  border-color: var(--c-success);
  background: color-mix(in srgb, var(--c-success) 5%, transparent);
}

.assessment__question-list--review
  .assessment__question--single.assessment__question--answered-incorrect
  .assessment__choice--correct
  .assessment__control::before {
  content: "";
  position: absolute;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  display: inline-block;
  line-height: 1;
  content: "\f058";
  color: var(--c-success);
  top: -1px;
  left: -1px;
  font-size: 1.5rem;
}

.assessment__question-list--review
  .assessment__choice--correct
  .assessment__control {
  border-color: var(--c-success);
  border-radius: 50%;
}

.assessment__question-list--review
  .assessment__question--multiple.assessment__question--answered-incorrect
  .assessment__choice--correct
  .assessment__control::before {
  content: "";
  position: absolute;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  display: inline-block;
  line-height: 1;
  content: "\f058";
  color: var(--c-success);
  top: -1px;
  left: -1px;
  font-size: 1.5rem;
}

.assessment__feedback {
  display: none;
  margin-top: var(--space-4);
}

.assessment__question-list--review .assessment__feedback--incorrect {
  display: block;
}

.assessment__question-list--review .assessment__feedback--correct {
  display: block;
}

.assessment__feedback-title {
  font-size: var(--text-sm);
  margin-block-end: var(--space-1) !important;
  font-weight: 600;
}

.assessment__question-list--review
  .assessment__feedback--incorrect
  .assessment__feedback-title {
  color: var(--c-danger);
}

.assessment__question-list--review
  .assessment__feedback--correct
  .assessment__feedback-title {
  color: var(--c-success);
}

.assessment__feedback-text {
  font-size: var(--text-sm);
}
.assessment__feedback-text strong {
  font-weight: 500;
}

.assessment__question-list--review .assessment__textarea {
  pointer-events: none;
  user-select: none;
  opacity: 0.6;
  cursor: not-allowed;
}

.assessment__question-list--review
  .assessment__question--text.assessment__question--answered-incorrect
  .assessment__textarea {
  border-color: var(--c-danger);
  background: color-mix(in srgb, var(--c-danger) 5%, transparent);
}

.assessment__question-list--review
  .assessment__question--text.assessment__question--answered-correct
  .assessment__textarea {
  border-color: var(--c-success);
  background: color-mix(in srgb, var(--c-success) 5%, transparent);
}

.assessment__question--rating .assessment__question-text {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
}

.assessment__required {
  color: #d83b3b;
  font-weight: 700;
}

.assessment__question--rating .assessment__question-text {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
}

.assessment__required {
  color: #d83b3b;
  font-weight: 700;
}

.assessment__rating {
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  border: 0;
}

.assessment__rating-option {
  display: inline-flex;
  cursor: pointer;
}

.assessment__rating-star {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  line-height: 1;
  color: #6b7280;
  transition: color var(--dur-2) var(--ease-standard);
}

.assessment__rating-option
  .assessment__input:focus-visible
  + .assessment__rating-star {
  outline: var(--focus);
  outline-offset: 0.25rem;
  border-radius: 0.25rem;
}

.assessment__rating-option.is-active .assessment__rating-star {
  color: #f5b301;
}

.assessment__rating-option.is-active .assessment__rating-star i {
  font-weight: 900;
}

.assessment__panel--complete .metadata-block {
  margin-bottom: 0;
}

.assessment-complete__inner {
  text-align: center;
}

h2.assessment-complete__title {
  font-size: var(--h2);
  margin-bottom: var(--space-12);
}

.assessment-complete__stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
  font-size: var(--text-md);
}

.assessment-complete__stats strong {
  font-weight: 500;
}

.assessment-complete__result--passed {
  color: var(--c-success);
  font-weight: 600;
}

.assessment-complete__completed {
  margin-block-end: var(--space-12);
}

.assessment-complete__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  column-gap: var(--space-2);
}

.assessment-complete__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  padding-inline: var(--space-4);
  border-radius: var(--radius-sm);
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  font-size: var(--text-sm);
  border: none;
  gap: var(--space-3);
}

.assessment-complete__btn--secondary {
  border: 1px solid var(--link);
  background: transparent;
  color: var(--link);
}

.assessment-complete__btn--primary {
  background-color: var(--c-primary);
  color: var(--surface);
}

.assessment-complete__btn--secondary:hover {
  border: 1px solid var(--link-hover);
  background: var(--surface-1);
  color: var(--link-hover);
}

.assessment-complete__btn--primary:hover {
  background-color: var(--link-hover);
  color: var(--surface);
}

#assessment-resources-body {
  --tt-collapsed: 150px;
}

/* -------------------------------------------------------------------
   Responsive
   ---------------------------------------------------------------- */

/* > 320px / 20rem */
@media only screen and (min-width: 20rem) {
}

/* > 480px / 30rem */
@media only screen and (min-width: 30rem) {
  .progress-label {
    display: unset;
  }
  .lesson__actions {
    justify-content: unset;
    gap: var(--space-1);
  }

  .lesson__action--display-contents {
    width: unset;
  }

  .lesson__action--complete {
    margin-inline: auto;
  }

  .contributor-modal__hero {
    flex-direction: row;
    gap: var(--space-4);
    align-items: center;
  }
}

/* > 640px / 40rem */
@media only screen and (min-width: 40rem) {
  .page-header__title-group {
    width: calc(100% - var(--space-3) - 356px);
  }

  .lesson__actions {
    gap: var(--space-2);
  }
  .lesson__action {
    flex-grow: 0;
    height: 36px;
    padding-inline: var(--space-3);
  }
  .lesson__action i {
    display: unset;
  }

  .contributor-modal .modal__panel {
    inline-size: calc(100vw - 1rem);
    max-block-size: calc(100vh - 1rem);
    padding: var(--space-0);
  }

  .contributor-modal__hero {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding-inline-end: 2.75rem;
  }

  .contributor-modal__image {
    inline-size: 6rem;
    block-size: 6rem;
  }

  .contributor-modal__name {
    font-size: var(--text-lg);
  }

  .contributor-modal__meta,
  .contributor-modal__rich-text {
    font-size: var(--text-sm);
  }

  .contributor-modal__contact-link {
    grid-template-columns: 1.75rem 1fr;
    padding: var(--space-3);
  }

  .assessment__question-list {
    gap: 5rem;
  }

  .assessment__choice {
    grid-template-columns: auto 1fr;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    align-items: center;
  }

  .assessment__control {
    inline-size: 1.5rem;
    block-size: 1.5rem;
    margin-top: 0.1rem;
  }

  .assessment__question-number {
    font-size: var(--text-xs);
  }

  .assessment__question-text,
  .assessment__instruction,
  .assessment__choice-text {
    font-size: var(--text-sm);
  }
}

/* 48rem/768px*/
@media only screen and (min-width: 48rem) {
  .anchors-wrap {
    padding-block: var(--space-0);
    margin-block-end: var(--space-4);
    padding-inline: var(--space-0);
    z-index: 1;
  }

  .anchors-toggle {
    display: none;
  }

  .anchors {
    display: flex;
    position: static;
    padding: 0;
    border: 0;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    box-shadow: none;
    margin-inline: 0;
    gap: 0;
    overflow: hidden;
  }

  .anchor {
    position: relative;
    color: var(--text-muted);
    padding-inline: var(--space-4);
    font-size: var(--text-xs);
    font-weight: 500;
    display: flex;
    flex-direction: column;
    text-align: center;
    align-items: center;
    gap: var(--space-2);
    flex-basis: 100%;
    justify-content: center;
  }

  .anchor i {
    margin-inline-end: 0;
    font-size: var(--text-lg);
  }

  .anchor-active {
    color: var(--link);
  }

  .anchor-active::after {
    content: "";
    bottom: -1px;
    position: absolute;
    width: 100%;
    height: 5px;
    background: var(--link);
    left: 0;
    right: 0;
  }
}

/* > 64rem / 1024px */
@media only screen and (min-width: 64rem) {
  .page-header__bar {
    flex-wrap: wrap;
    gap: var(--space-6);
  }

  .page-header__title-group {
    width: calc(100% - var(--space-6) - 356px);
  }

  body.is-in-lesson .page-header__title-lesson {
    font-size: 1.75rem;
  }
  .anchors-wrap {
    margin-inline: calc((var(--space-10)) * -1);
    margin-block-start: -24px;
  }
  .anchor {
    padding-inline: var(--space-10);
    padding-block: var(--space-4);
  }

  .course__sidebar {
    max-width: 320px;
    z-index: 2;
  }

  .course-contents__action--display-contents {
    height: 63px;
  }

  .lesson__backdrop {
    transition: all var(--dur-3) var(--ease-standard);
    background: var(--text-strong);
    border: none;
    position: absolute;
    inset: 0;
    display: unset;
    pointer-events: none;
    z-index: 1;
  }

  .lesson__backdrop--display {
    visibility: visible;
    opacity: 50%;
    pointer-events: unset;
  }

  .lesson__actions {
    padding-block: var(--space-3);
    height: 63px;
  }

  .lesson__action {
    height: 38px;
    padding-inline: var(--space-5);
  }

  .lesson__hero {
    padding-inline: var(--space-10);
    padding-block: var(--space-6);
  }
}

/* > 80rem / 1280px */
@media only screen and (min-width: 80rem) {
  .page-header__bar {
    flex-wrap: nowrap;
  }
  .metadata-block__section:not(:last-of-type):after {
    margin-inline: calc(var(--space-12) * -1);
  }

  .anchors-wrap {
    margin-inline: calc((var(--space-12)) * -1);
    margin-block-end: var(--space-8);
    margin-block-start: calc(-1 * (var(--space-8)));
  }

  .anchor {
    flex-direction: row;
    gap: var(--space-4);
    text-align: start;
    font-size: var(--text-sm);
    flex-basis: unset;
  }

  .lesson-block {
    display: flex;
  }

  /* .course__sidebar {
    position: relative;
    margin-block-start: calc(-1 * var(--space-8));
    margin-inline-start: calc(-1 * var(--space-12));
  } */

  .course__sidebar--open + .course__lesson {
    margin-inline-start: 320px;
  }
  .course__lesson {
    flex-grow: 1;
    margin-inline-start: 0;
    transition: margin-inline-start var(--dur-3) var(--ease-standard);
  }

  .lesson__information {
    padding-inline: 0 !important;
  }

  .lesson__action--display-contents {
    max-width: auto;
    opacity: 1;
  }

  .course__sidebar--open + .course__lesson .lesson__action--display-contents {
    max-width: 0;
    padding-inline: 0;
    opacity: 0;
  }

  .course__sidebar--open + .course__lesson .lesson__actions {
    gap: 0;
  }

  .lesson__backdrop--display {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
  }

  .lesson__hero {
    padding-inline: var(--space-12);
    padding-block: var(--space-8);
  }
}

/* 96rem / 1536px */
@media only screen and (min-width: 96rem) {
}