#courseView {
  grid-template-rows: auto minmax(0, 1fr);
}

#currentCourseLayout[hidden],
#additionalCourseView[hidden],
#additionalCourseLab[hidden],
#practicumSheetBtn[hidden] {
  display: none !important;
}

.additional-course-view {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(245px, 310px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.additional-course-sidebar,
.additional-course-article {
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 9px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.008)), var(--glass);
  box-shadow: var(--shadow-soft);
}

.additional-course-sidebar {
  display: grid;
  gap: 18px;
  padding: 17px;
}

.additional-course-navigator-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  border: 1px solid rgba(169, 216, 215, 0.42);
  border-radius: 8px;
  padding: 9px;
  color: #dcf7f1;
  background: rgba(12, 51, 62, 0.85);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 760;
  cursor: pointer;
}

.additional-course-navigator-toggle:focus-visible {
  outline: 2px solid #e8b96c;
  outline-offset: 3px;
}

@media (min-width: 851px) {
  .additional-course-view:not(.course-navigator-expanded) {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 12px;
  }
  .additional-course-view:not(.course-navigator-expanded) .additional-course-sidebar {
    align-content: start;
    gap: 0;
    padding: 6px;
    position: sticky;
    top: 12px;
  }
  .additional-course-view:not(.course-navigator-expanded) :is(#additionalCourseOverview, #additionalCourseLessonList) {
    display: none;
  }
  .additional-course-navigator-toggle {
    min-height: 42px;
  }
  .additional-course-view:not(.course-navigator-expanded) .additional-course-navigator-toggle {
    min-height: 132px;
    writing-mode: vertical-rl;
  }
}

.additional-course-overview h2 {
  margin: 4px 0 8px;
  font-size: 1.12rem;
  line-height: 1.28;
}

.additional-course-overview p:not(.eyebrow) {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

.additional-course-overview-more {
  margin-top: 11px;
  border-top: 1px solid var(--line-soft);
  padding-top: 9px;
}

.additional-course-overview-more > summary {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 760;
  line-height: 1.4;
  cursor: pointer;
}

.additional-course-overview-more > :not(summary) {
  margin-top: 10px;
}

.additional-course-return-link {
  justify-self: start;
  border: 0;
  padding: 0;
  color: var(--accent);
  background: transparent;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 760;
  cursor: pointer;
}

.additional-course-return-link:focus-visible,
.additional-course-overview-more > summary:focus-visible {
  outline: 2px solid #e8b96c;
  outline-offset: 3px;
}

.additional-course-audience {
  border-left: 2px solid var(--accent);
  padding-left: 10px;
}

.additional-course-scene {
  margin: 12px 0 0;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: #162733;
}

.additional-course-scene img {
  display: block;
  width: 100%;
  height: 132px;
  object-fit: cover;
  object-position: 52% center;
}

.additional-course-scene figcaption {
  padding: 8px 10px;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.4;
}

.additional-course-sidebar h3 {
  margin: 0 0 8px;
  font-size: 0.91rem;
}

.additional-course-module {
  margin-top: 14px;
  border-top: 1px solid var(--line-soft);
  padding-top: 10px;
}

.additional-course-module-name {
  margin: 0 0 7px;
  color: var(--accent);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
}

.additional-course-module-name:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.additional-course-lesson-button {
  width: 100%;
  display: grid;
  grid-template-columns: 27px minmax(0, 1fr);
  gap: 7px;
  align-items: start;
  padding: 9px;
  border: 1px solid transparent;
  border-radius: 7px;
  color: var(--text);
  background: transparent;
  text-align: left;
  cursor: pointer;
  line-height: 1.34;
}

.additional-course-lesson-button .additional-course-lesson-name {
  min-width: 0;
}

.additional-course-lesson-button .additional-course-lesson-progress {
  grid-column: 2;
  color: #a8c3c8;
  font-size: 0.7rem;
  line-height: 1.3;
}

.additional-course-lesson-button[data-study="viewed"] .additional-course-lesson-progress,
.additional-course-lesson-button[data-study="lab-explored"] .additional-course-lesson-progress {
  color: #9de6d7;
}

.additional-course-lesson-button[data-revisit="true"] .additional-course-lesson-progress {
  color: #ffd98d;
}

.additional-course-lesson-button span:first-child {
  color: var(--muted);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}

.additional-course-lesson-button:hover,
.additional-course-lesson-button:focus-visible,
.additional-course-lesson-button[aria-current="page"] {
  border-color: rgba(85, 214, 190, 0.29);
  background: rgba(85, 214, 190, 0.1);
}

.additional-course-future {
  border-top: 1px solid var(--line-soft);
  padding-top: 14px;
}

.additional-course-future ul {
  margin: 0;
  padding-left: 19px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.48;
}

.additional-course-roadmap {
  border-top: 1px solid var(--line-soft);
  padding-top: 14px;
}

.additional-course-roadmap > summary {
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 760;
  cursor: pointer;
}

.additional-course-roadmap section {
  margin-top: 17px;
}

.additional-course-roadmap h4 {
  margin: 0 0 8px;
  font-size: 0.8rem;
}

.additional-course-roadmap ol {
  margin: 0;
  padding-left: 21px;
}

.additional-course-roadmap li {
  margin: 0 0 11px;
  color: #dde8ed;
  font-size: 0.79rem;
  line-height: 1.38;
}

.additional-course-roadmap li small {
  display: block;
  color: var(--accent);
  font-size: 0.69rem;
}

.additional-course-roadmap li p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 0.72rem;
}

.additional-course-article {
  display: grid;
  gap: 21px;
  padding: clamp(18px, 3vw, 32px);
}

.additional-course-article-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  color: var(--muted);
  font-size: 0.78rem;
}

.additional-course-study-tools {
  display: flex;
  flex: 1 1 auto;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
}

.additional-course-study-status {
  color: #c6e9e3;
  font-size: 0.72rem;
  font-weight: 750;
}

.additional-course-study-tools button {
  border: 1px solid rgba(169, 216, 215, 0.42);
  border-radius: 6px;
  padding: 5px 7px;
  color: #dff7f1;
  background: rgba(12, 51, 62, 0.85);
  font: inherit;
  font-size: 0.7rem;
  font-weight: 740;
  cursor: pointer;
}

.additional-course-study-tools button[aria-pressed="true"] {
  border-color: rgba(255, 217, 141, 0.72);
  color: #ffd98d;
  background: rgba(75, 54, 23, 0.72);
}

.additional-course-study-tools button:disabled {
  cursor: default;
  opacity: 0.72;
}

.additional-course-study-tools button:focus-visible {
  outline: 2px solid #e8b96c;
  outline-offset: 2px;
}

.additional-course-study-boundary {
  margin: -15px 0 0;
  color: var(--muted);
  font-size: 0.69rem;
  line-height: 1.25;
}

.additional-course-progress-summary {
  margin: 9px 0 0 !important;
  color: #a9dfd3 !important;
  font-size: 0.74rem !important;
}

.additional-course-badge {
  padding: 6px 9px;
  border: 1px solid rgba(255, 204, 102, 0.3);
  border-radius: 999px;
  color: var(--warn);
  background: rgba(255, 204, 102, 0.08);
  font-weight: 760;
}

.additional-course-article > .eyebrow {
  margin: 0 0 -17px;
}

.additional-course-article h2 {
  margin: 0;
  font-size: clamp(1.4rem, 2.25vw, 2rem);
  line-height: 1.18;
}

.additional-course-recorded-first-source {
  min-width: 0;
  scroll-margin-top: 16px;
}

.additional-course-recorded-first-source:focus {
  outline: 2px solid #e8b96c;
  outline-offset: 4px;
}

.additional-course-recorded-first-source [tabindex="-1"]:focus {
  outline: 2px solid #e8b96c;
  outline-offset: 4px;
}

.additional-course-lead {
  max-width: 75ch;
  margin: -12px 0 0;
  color: #ccd9e4;
  font-size: 0.99rem;
  line-height: 1.58;
}

.additional-course-preview {
  display: grid;
  gap: 12px;
  min-width: 0;
  padding: clamp(14px, 2vw, 20px);
  border: 1px solid rgba(85, 214, 190, 0.42);
  border-radius: 11px;
  background: linear-gradient(135deg, rgba(22, 69, 76, 0.74), rgba(10, 30, 47, 0.78));
}

.additional-course-preview-source {
  margin: 0 0 3px;
  color: #9de6d7;
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  line-height: 1.35;
  text-transform: uppercase;
}

.additional-course-preview-head h3 {
  margin: 0;
  color: #f4fbfb;
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  line-height: 1.25;
}

.additional-course-preview-frame-cue,
.additional-course-preview-scroll-cue {
  display: none;
}

.additional-course-preview-current {
  display: grid;
  align-self: start;
  align-content: start;
  gap: 8px;
  padding: 10px;
  border: 1px solid rgba(255, 208, 130, 0.42);
  border-radius: 8px;
  background: rgba(88, 57, 31, 0.28);
}

.additional-course-preview-current > strong {
  color: #ffe1b2;
  font-size: 0.78rem;
}

.additional-course-preview-current dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
  margin: 0;
}

.additional-course-preview-current dl > div {
  min-width: 0;
  padding: 8px;
  border: 1px solid rgba(255, 208, 130, 0.2);
  border-radius: 6px;
  background: rgba(8, 26, 37, 0.58);
}

.additional-course-preview-current dt {
  margin-bottom: 3px;
  color: #a9d6d4;
  font-size: 0.66rem;
  font-weight: 850;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.additional-course-preview-current dd {
  margin: 0;
  color: #f4f7f3;
  font-size: 0.77rem;
  line-height: 1.37;
  overflow-wrap: anywhere;
}

.additional-course-preview-omissions {
  margin: 0;
  color: #bfd5d7;
  font-size: 0.75rem;
  line-height: 1.35;
}

.additional-course-preview-mark {
  margin-top: 7px;
  padding: 5px 8px;
  border: 1px solid rgba(255, 208, 130, 0.44);
  border-radius: 5px;
  background: rgba(33, 51, 58, 0.82);
  color: #f9ead6;
  font: inherit;
  font-size: 0.69rem;
  font-weight: 750;
  cursor: pointer;
}

.additional-course-preview-mark[aria-pressed="true"] {
  border-color: #ffe2a9;
  background: rgba(118, 75, 28, 0.83);
}

.additional-course-preview-mark:focus-visible,
.additional-course-preview-comparison summary:focus-visible {
  outline: 2px solid #ffe2a9;
  outline-offset: 2px;
}

.additional-course-preview-notebook {
  display: grid;
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid rgba(145, 218, 206, 0.34);
  border-radius: 8px;
  background: rgba(5, 29, 39, 0.58);
}

.additional-course-preview-notebook h4,
.additional-course-preview-notebook p {
  margin: 0;
}

.additional-course-preview-notebook h4 { color: #b8f2e4; font-size: 0.82rem; }
.additional-course-preview-notebook > p { color: #c6dadd; font-size: 0.74rem; line-height: 1.4; }

.additional-course-preview-marked-cues {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 165px), 1fr));
  gap: 7px;
}

.additional-course-preview-marked-cues > p {
  grid-column: 1 / -1;
  color: #bdd7d8;
  font-size: 0.74rem;
}

.additional-course-preview-marked-card {
  min-width: 0;
  padding: 7px 9px;
  border: 1px solid rgba(145, 218, 206, 0.3);
  border-radius: 6px;
  background: rgba(13, 52, 61, 0.74);
}

.additional-course-preview-marked-card strong { color: #a8eadc; font-size: 0.72rem; }
.additional-course-preview-marked-card p { color: #f3f8f5; font-size: 0.76rem; overflow-wrap: anywhere; }

.additional-course-preview-comparison {
  min-width: 0;
  padding-top: 6px;
  border-top: 1px solid rgba(169, 216, 215, 0.21);
}

.additional-course-preview-source-cues {
  min-width: 0;
  padding: 9px 11px;
  border: 1px solid rgba(169, 216, 215, 0.3);
  border-radius: 8px;
  background: rgba(5, 29, 39, 0.48);
}

.additional-course-preview-source-cues > summary {
  color: #c8eee7;
  font-size: 0.79rem;
  font-weight: 760;
  cursor: pointer;
}

.additional-course-preview-source-cues > summary:focus-visible {
  outline: 2px solid #ffe2a9;
  outline-offset: 3px;
}

.additional-course-preview-source-cues:not([open]) > :not(summary) {
  display: none;
}

.additional-course-preview-source-cues[open] {
  display: block;
}

.additional-course-preview-source-cues[open] > summary {
  margin-bottom: 10px;
}

.additional-course-preview-source-cues[open] > :not(summary) + :not(summary) {
  margin-top: 10px;
}

.additional-course-preview-comparison summary {
  width: fit-content;
  color: #b9ede4;
  font-size: 0.78rem;
  font-weight: 760;
  cursor: pointer;
}

.additional-course-preview-comparison .additional-course-preview-scroll-cue {
  display: block;
  margin: 9px 0 6px;
  color: #a9d6d4;
  font-size: 0.72rem;
  line-height: 1.35;
}

.additional-course-preview-frames {
  display: flex;
  gap: 7px;
  max-width: 100%;
  overflow-x: auto;
  padding: 2px 2px 6px;
}

.additional-course-preview-frame {
  flex: 0 0 auto;
  max-width: min(220px, 57vw);
  min-height: 42px;
  padding: 8px 11px;
  border: 1px solid rgba(158, 217, 216, 0.38);
  border-radius: 7px;
  color: #dceceb;
  background: rgba(7, 24, 35, 0.6);
  font: inherit;
  font-size: 0.76rem;
  font-weight: 740;
  line-height: 1.32;
  text-align: left;
  cursor: pointer;
}

.additional-course-preview-frame[aria-pressed="true"] {
  border-color: #ffd082;
  color: #fff6e7;
  background: rgba(120, 77, 33, 0.48);
}

.additional-course-preview-frame:focus-visible {
  outline: 2px solid #e8b96c;
  outline-offset: 3px;
}

.additional-course-preview-visual {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  align-items: stretch;
  gap: 12px;
  min-width: 0;
}

.additional-course-preview-stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: stretch;
  gap: 12px;
  min-width: 0;
}

@media (min-width: 800px) {
  .additional-course-preview-stage:has(.additional-course-preview-image):not(:has(.additional-course-preview-strip)) {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }
  .additional-course-preview-stage:has(.additional-course-preview-critical-record) {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }
  .additional-course-preview-stage:has(.additional-course-preview-emt-concept) {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }
  .additional-course-preview-stage:has(.additional-course-preview-paramedic-concept) {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }
  .additional-course-preview-stage:has(.additional-course-preview-image):not(:has(.additional-course-preview-strip)) .additional-course-preview-visual {
    grid-template-columns: minmax(0, 1fr);
  }
  .additional-course-preview-stage:has(.additional-course-preview-image):has(.additional-course-preview-rate) .additional-course-preview-image img {
    max-height: 210px;
  }
  .additional-course-preview-stage:has(.additional-course-preview-image):not(:has(.additional-course-preview-strip)) .additional-course-preview-image {
    width: 100%;
  }
  .additional-course-preview-stage:has(.additional-course-preview-image):not(:has(.additional-course-preview-strip)) .additional-course-preview-image img {
    max-height: 280px;
  }
}

.additional-course-preview-stage:has(> .additional-course-preview-visual:only-child) {
  grid-template-columns: minmax(0, 1fr);
}

.additional-course-preview-visual:not(:has(.additional-course-preview-image)) {
  grid-template-columns: minmax(0, 1fr);
}

.additional-course-preview-image {
  width: min(240px, 30vw);
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(158, 217, 216, 0.24);
  border-radius: 8px;
  background: #102a37;
}

.additional-course-preview-image img {
  display: block;
  width: 100%;
  max-height: 155px;
  object-fit: cover;
}

.additional-course-preview-image figcaption {
  padding: 6px 8px;
  color: #afc7cf;
  font-size: 0.68rem;
  line-height: 1.35;
}

.additional-course-preview-critical-record {
  width: 100%; min-width: 0; margin: 0; overflow: hidden;
  border: 1px solid #617f8c; border-radius: 9px; color: #ecf7f8;
  background: linear-gradient(145deg, #0a202c, #173b4a);
}
.additional-course-preview-critical-head {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 5px;
  padding: 8px 10px; border-bottom: 1px solid #4d6e7a;
  color: #bce3dd; font-size: .65rem; font-weight: 850; letter-spacing: .04em;
}
.additional-course-preview-critical-head strong { color: #f2d49a; font-size: .76rem; font-variant-numeric: tabular-nums; }
.additional-course-preview-critical-trail { display: flex; gap: 4px; padding: 8px 10px 0; min-width: 0; overflow-x: auto; }
.additional-course-preview-critical-trail span {
  flex: 1 0 52px; padding: 3px 5px; border-top: 3px solid #667f87;
  color: #bed4d8; font-size: .65rem; font-weight: 750; white-space: nowrap;
}
.additional-course-preview-critical-trail span.is-current { border-color: #ebc892; color: #fff2d9; }
.additional-course-preview-critical-display { display: grid; gap: 7px; padding: 10px; }
.additional-course-preview-critical-display small { display: block; color: #a8d1d8; font-size: .63rem; font-weight: 850; letter-spacing: .045em; text-transform: uppercase; }
.additional-course-preview-critical-display strong { display: block; color: #f2f9f9; font-size: .82rem; line-height: 1.35; overflow-wrap: anywhere; }
.additional-course-preview-critical-patient { border-left: 3px solid #9ed6c1; padding: 2px 8px; }
.additional-course-preview-critical-measures { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.additional-course-preview-critical-measure { padding: 7px; border: 1px solid #597887; border-radius: 5px; background: #0b2634; }
.additional-course-preview-critical-measure strong { margin-top: 3px; color: #f2d39b; font-variant-numeric: tabular-nums; }
.additional-course-preview-critical-ecg { padding: 7px; border: 1px solid #4b7483; border-radius: 5px; background: #112e3e; }
.additional-course-preview-critical-ecg strong { margin-top: 3px; }
.additional-course-preview-critical-sources { display: grid; gap: 4px; }
.additional-course-preview-critical-sources > div { display: grid; grid-template-columns: 6.5rem minmax(0, 1fr); gap: 5px; padding: 4px 0; border-top: 1px solid #426170; }
.additional-course-preview-critical-sources span { color: #d8e7e9; font-size: .7rem; line-height: 1.35; overflow-wrap: anywhere; }
.additional-course-preview-critical-record figcaption { padding: 6px 10px; border-top: 1px solid #4d6e7a; color: #bed2d9; font-size: .67rem; line-height: 1.35; }

.additional-course-preview-emt-concept { min-width: 0; }
.additional-course-preview-emt-boundary {
  margin: 0 0 6px; padding: 6px 8px; border-left: 3px solid #8ad6c8;
  color: #c9e5e2; background: #102d39; font-size: .7rem; line-height: 1.4;
}
.additional-course-preview-emt-concept > :is(.emt-reader-visual, .emt-rv2, .emt-rv3) { margin: 0; }
.additional-course-preview-stage:has(.additional-course-preview-emt-concept) .additional-course-preview-current { align-self: start; align-content: start; }
.additional-course-preview-stage:has(.additional-course-preview-image) .additional-course-preview-current { align-self: start; align-content: start; }
.additional-course-preview-paramedic-concept { min-width: 0; }
.additional-course-preview-paramedic-boundary {
  margin: 0 0 6px; padding: 6px 8px; border-left: 3px solid #d1b893;
  color: #e7d9c8; background: #30291f; font-size: .7rem; line-height: 1.4;
}
.additional-course-preview-paramedic-concept > figure { margin: 0; }
.additional-course-preview-stage:has(.additional-course-preview-paramedic-concept) .additional-course-preview-current { align-self: start; align-content: start; }

.additional-course-preview-strip {
  grid-column: 1 / -1;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(158, 217, 216, 0.28);
  border-radius: 7px;
  background: #071b28;
}

.additional-course-preview-strip svg {
  display: block;
  width: 100%;
  height: 88px;
}

.additional-course-preview-strip-grid line {
  stroke: rgba(102, 184, 169, 0.2);
  stroke-width: 1;
}

.additional-course-preview-strip-path {
  fill: none;
  stroke: #9de6d7;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.additional-course-preview-strip figcaption {
  padding: 5px 8px;
  border-top: 1px solid rgba(158, 217, 216, 0.18);
  color: #afc7cf;
  font-size: 0.75rem;
  line-height: 1.3;
}

.additional-course-preview-rate {
  grid-column: 1 / -1;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(158, 217, 216, 0.28);
  border-radius: 8px;
  background: linear-gradient(135deg, #082433, #113744);
}

.additional-course-preview-rate-display {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 8px;
  padding: 10px;
}

.additional-course-preview-rate-tile,
.additional-course-preview-time-tile {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  min-width: 0;
  padding: 7px 12px;
  border: 1px solid rgba(153, 224, 212, 0.28);
  border-radius: 6px;
  background: rgba(4, 22, 32, 0.62);
}

.additional-course-preview-rate-tile { flex: 1 1 150px; }
.additional-course-preview-time-tile { flex: 1 1 130px; }
.additional-course-preview-rate-display span {
  color: #b9d9d9;
  font-size: 0.74rem;
  line-height: 1.25;
}
.additional-course-preview-rate-tile strong {
  color: #a6f0df;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.additional-course-preview-time-tile strong {
  color: #eaf8f4;
  font-size: 1rem;
  line-height: 1.2;
  overflow-wrap: anywhere;
}
.additional-course-preview-rate figcaption {
  padding: 7px 10px;
  border-top: 1px solid rgba(153, 224, 212, 0.18);
  color: #bfd7da;
  font-size: 0.75rem;
  line-height: 1.35;
}

.additional-course-preview-matrix {
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  border: 1px solid rgba(169, 216, 215, 0.25);
  border-radius: 8px;
  background: rgba(5, 21, 32, 0.56);
}

.additional-course-preview-matrix:focus-visible {
  outline: 2px solid #e8b96c;
  outline-offset: 3px;
}

.additional-course-preview-matrix table {
  width: max-content;
  min-width: 100%;
  border-spacing: 5px;
  table-layout: fixed;
  color: #eaf4f4;
  font-size: 0.76rem;
  line-height: 1.36;
}

.additional-course-preview-matrix caption {
  padding: 9px 10px 3px;
  color: #afcfd1;
  font-size: 0.75rem;
  line-height: 1.36;
  text-align: left;
}

.additional-course-preview-matrix th,
.additional-course-preview-matrix td {
  width: 166px;
  min-width: 0;
  padding: 8px 9px;
  border: 1px solid rgba(169, 216, 215, 0.16);
  border-radius: 6px;
  overflow-wrap: anywhere;
  text-align: left;
  vertical-align: top;
  background: rgba(8, 29, 41, 0.78);
}

.additional-course-preview-matrix th:first-child {
  position: sticky;
  left: 5px;
  z-index: 1;
  width: 84px;
  color: #a3d9d7;
  background: #123442;
}

.additional-course-preview-matrix thead th {
  color: #d6ebed;
  font-size: 0.69rem;
  font-weight: 800;
}

.additional-course-preview-matrix tbody th {
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.additional-course-preview-matrix [data-selected="true"] {
  border-color: rgba(255, 208, 130, 0.68);
  color: #fff6e8;
  background: rgba(103, 66, 33, 0.5);
}

.additional-course-preview-matrix td[data-evidence="pressure"] {
  font-variant-numeric: tabular-nums;
  font-weight: 760;
}

.additional-course-preview-matrix td[aria-label="Not authored for this snapshot"] {
  color: #87aeb7;
  font-size: 1.1rem;
  text-align: center;
}

.additional-course-preview-task,
.additional-course-preview-limit {
  margin: 0;
  font-size: 0.79rem;
  line-height: 1.45;
}

.additional-course-preview-task { color: #d8f1ea; }
.additional-course-preview-limit { color: #aec8d1; }

.additional-course-preview-checkpoint {
  display: grid;
  justify-items: start;
  gap: 10px;
  padding: 12px;
  border: 1px solid rgba(255, 208, 130, 0.35);
  border-radius: 8px;
  background: rgba(68, 47, 29, 0.28);
}

.additional-course-preview-checkpoint h4 {
  margin: 0;
  color: #ffdba2;
  font-size: 0.8rem;
}

.additional-course-preview-checkpoint fieldset {
  display: grid;
  gap: 7px;
  width: 100%;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.additional-course-preview-checkpoint legend {
  margin-bottom: 8px;
  color: #f1eee5;
  font-size: 0.85rem;
  font-weight: 750;
  line-height: 1.45;
}

.additional-course-preview-checkpoint label {
  display: flex;
  gap: 8px;
  align-items: start;
  width: 100%;
  min-width: 0;
  padding: 8px 9px;
  border: 1px solid rgba(255, 208, 130, 0.23);
  border-radius: 7px;
  color: #f1eee5;
  font-size: 0.79rem;
  line-height: 1.4;
  cursor: pointer;
}

.additional-course-preview-checkpoint label:has(input:checked) {
  border-color: #ffd082;
  background: rgba(255, 208, 130, 0.1);
}

.additional-course-preview-checkpoint input {
  flex: 0 0 auto;
  margin-top: 2px;
  accent-color: #ffd082;
}

.additional-course-preview-feedback {
  min-height: 1.35em;
  margin: 0;
  color: #f1eee5;
  font-size: 0.8rem;
  line-height: 1.45;
}

.additional-course-preview-feedback[data-supported="true"] { color: #bcf5ce; }

.additional-course-preview-checkpoint button:focus-visible,
.additional-course-preview-checkpoint input:focus-visible {
  outline: 2px solid #e8b96c;
  outline-offset: 3px;
}

.additional-course-lab-route {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.additional-course-lesson-route {
  padding: 0;
}

#additionalCourseLab {
  min-width: 0;
}

.additional-course-lab-route {
  margin-bottom: 11px;
  padding: 10px 12px;
  border: 1px solid rgba(85, 214, 190, 0.25);
  border-radius: 8px;
  background: rgba(10, 43, 50, 0.7);
}

.additional-course-lab-route > span {
  margin-right: auto;
  color: #9de6d7;
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.additional-course-preview:focus,
.additional-course-lesson-route:focus,
#additionalCourseLab:focus,
#additionalCourseSections:focus,
#additionalCourseFurtherReading:focus,
#additionalCourseLessonList:focus {
  outline: 2px solid #e8b96c;
  outline-offset: 4px;
}

.additional-course-preview,
.additional-course-lesson-route,
#additionalCourseLab,
#additionalCourseSections,
#additionalCourseFurtherReading,
#additionalCourseLessonList,
#additionalCourseLessonTitle {
  scroll-margin-top: 16px;
}

.additional-course-section > div > [tabindex="-1"]:focus {
  outline: 2px solid #e8b96c;
  outline-offset: 4px;
  scroll-margin-top: 16px;
}

.additional-course-objectives {
  padding: 18px;
  border: 1px solid rgba(111, 182, 255, 0.22);
  border-radius: 8px;
  background: rgba(111, 182, 255, 0.055);
}

.additional-course-objectives summary {
  color: #e1f0ff;
  font-size: 0.9rem;
  font-weight: 780;
  cursor: pointer;
}

.additional-course-objectives details[open] summary {
  margin-bottom: 10px;
}

.additional-course-objectives summary:focus-visible {
  outline: 2px solid #e8b96c;
  outline-offset: 3px;
}

.additional-course-objectives h3,
.additional-course-application h3,
.additional-course-safety h3,
.additional-course-sources h3 {
  margin: 0 0 10px;
  font-size: 0.95rem;
}

.additional-course-objectives ul,
.additional-course-sources ul {
  margin: 0;
  padding-left: 21px;
  line-height: 1.58;
}

.additional-course-objectives li + li,
.additional-course-sources li + li {
  margin-top: 5px;
}

.additional-course-sections {
  display: grid;
  gap: 12px;
}

.additional-course-further-reading {
  margin-top: 10px;
}

.additional-course-reading-title {
  margin: 0;
  color: var(--accent);
  font-size: 1.02rem;
}

.additional-course-section {
  display: grid;
  grid-template-columns: 31px minmax(0, 1fr);
  gap: 13px;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}

.additional-course-section-index {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 850;
  font-variant-numeric: tabular-nums;
}

.additional-course-section h3 {
  margin: 0 0 8px;
  font-size: 1.04rem;
}

.additional-course-section p,
.additional-course-application p,
.additional-course-safety p {
  max-width: 82ch;
  margin: 0;
  color: #cfdae3;
  line-height: 1.62;
  white-space: pre-line;
}

.course-library-visual {
  display: grid;
  gap: 14px;
  min-width: 0;
  padding: clamp(15px, 2vw, 22px);
  border: 1px solid rgba(85, 214, 190, 0.35);
  border-radius: 12px;
  background: linear-gradient(145deg, rgba(19, 64, 66, 0.92), rgba(17, 35, 50, 0.94));
}

.course-library-visual-head > div {
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.course-library-visual-head h3 {
  margin: 4px 0 0;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
}

.course-library-visual > p {
  margin: 0;
  color: #d5e3e5;
  line-height: 1.5;
}

.course-library-visual-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(90px, 0.45fr) minmax(0, 1fr);
  gap: 10px;
}

.course-library-visual-controls label {
  display: grid;
  gap: 5px;
  min-width: 0;
  color: #d8e9e9;
  font-size: 0.8rem;
  font-weight: 700;
}

.course-library-visual-controls select,
.course-library-visual-controls input {
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.course-library-visual-controls select {
  padding: 9px 10px;
  border: 1px solid rgba(166, 216, 211, 0.38);
  border-radius: 7px;
  color: #f4faf7;
  background: #183642;
}

.course-library-visual-time input {
  align-self: center;
  accent-color: #ffcb77;
}

.course-library-visual-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px;
  min-width: 0;
}

.course-library-visual-card {
  display: grid;
  align-content: start;
  gap: 10px;
  min-width: 0;
  padding: 12px;
  border: 1px solid rgba(133, 189, 192, 0.28);
  border-radius: 9px;
  background: rgba(5, 19, 31, 0.65);
}

.course-library-visual-card h4,
.course-library-visual-card p {
  margin: 0;
}

.course-library-visual-card h4 {
  min-height: 2.5em;
  font-size: 0.96rem;
}

.course-library-visual-card canvas {
  display: block;
  width: 100%;
  height: 174px;
  box-sizing: border-box;
  border: 1px solid rgba(222, 230, 217, 0.55);
  border-radius: 5px;
}

.course-library-visual-caption {
  color: #a6c5c9;
  font-size: 0.72rem;
}

.course-library-visual-fact {
  min-height: 4.8em;
  color: #e0ecea;
  font-size: 0.82rem;
  line-height: 1.45;
}

.course-library-visual-card button {
  justify-self: start;
}

.course-library-visual-more {
  align-self: start;
}

.course-library-visual-more summary {
  color: #b8ded8;
  cursor: pointer;
  font-size: 0.76rem;
  font-weight: 650;
}

.course-library-visual-more[open] button {
  margin-top: 8px;
}

.course-library-visual-facets {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.course-library-visual-facets button {
  padding: 8px 11px;
  border: 1px solid rgba(166, 216, 211, 0.38);
  border-radius: 7px;
  color: #e5f2ef;
  background: rgba(19, 52, 61, 0.9);
  cursor: pointer;
}

.course-library-visual-facets button[aria-pressed="true"] {
  border-color: #ffd082;
  color: #fff5df;
  background: rgba(123, 79, 36, 0.45);
}

.course-library-visual-boundary {
  font-size: 0.75rem;
}

.course-library-visual-checkpoint {
  display: grid;
  justify-items: start;
  gap: 10px;
  min-width: 0;
  padding: 14px;
  border: 1px solid rgba(255, 208, 130, 0.34);
  border-radius: 9px;
  background: rgba(85, 60, 39, 0.18);
}

.course-library-visual-checkpoint h4 {
  margin: 0;
  color: #ffd082;
  font-size: 0.92rem;
}

.course-library-visual-checkpoint fieldset {
  display: grid;
  gap: 8px;
  width: 100%;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.course-library-visual-checkpoint legend {
  margin-bottom: 10px;
  color: #f2f5ec;
  font-weight: 700;
  line-height: 1.4;
}

.course-library-visual-checkpoint label {
  display: flex;
  align-items: start;
  gap: 9px;
  min-width: 0;
  padding: 9px 11px;
  border: 1px solid rgba(166, 216, 211, 0.24);
  border-radius: 7px;
  color: #e0ecea;
  line-height: 1.4;
  cursor: pointer;
}

.course-library-visual-checkpoint input {
  flex: 0 0 auto;
  margin-top: 3px;
  accent-color: #ffd082;
}

.course-library-visual-checkpoint label:has(input:checked) {
  border-color: #ffd082;
  background: rgba(255, 208, 130, 0.1);
}

.course-library-visual-feedback {
  min-height: 1.4em;
  margin: 0;
  color: #ecf4ed;
  font-size: 0.82rem;
  line-height: 1.45;
}

.course-library-visual-debrief {
  padding: 10px 0;
  border-top: 1px solid rgba(166, 216, 211, 0.25);
  border-bottom: 1px solid rgba(166, 216, 211, 0.25);
}

.course-library-visual-debrief summary {
  width: fit-content;
  color: #ffd082;
  font-weight: 750;
  cursor: pointer;
}

.course-library-visual-debrief p {
  margin: 8px 0 0;
  color: #d5e3e5;
  line-height: 1.5;
}

.course-library-visual-secondary {
  border-color: rgba(166, 216, 211, 0.22);
  background: linear-gradient(145deg, rgba(18, 42, 50, 0.86), rgba(15, 31, 43, 0.88));
}

.course-library-visual-secondary .course-library-visual-card canvas {
  height: 210px;
}

.course-library-visual-secondary :is(.course-library-visual-facets, .course-library-visual-fact, .course-library-visual-card button, .course-library-visual-debrief)[hidden] {
  display: none;
}

.course-library-visual-response {
  display: grid;
  gap: 11px;
  padding: 14px;
  border: 1px solid rgba(166, 216, 211, 0.24);
  border-radius: 10px;
  background: rgba(8, 23, 34, 0.34);
}

.course-library-visual-response h4,
.course-library-visual-response p {
  margin: 0;
}

.course-library-visual-response > p,
.course-library-visual-response-field small {
  color: #d5e3e5;
  font-size: 0.82rem;
  line-height: 1.45;
}

.course-library-visual-response-field {
  display: grid;
  gap: 5px;
  min-width: 0;
  font-size: 0.82rem;
  font-weight: 700;
}

.course-library-visual-response-field :is(input, textarea) {
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  padding: 9px 10px;
  border: 1px solid #9bb7b5;
  border-radius: 7px;
  color: #172a30;
  background: #f6f8f4;
  font: inherit;
  font-weight: 500;
}

.course-library-visual-response-field textarea {
  resize: vertical;
  min-height: 6.5em;
}

.course-library-visual-response :is(input, textarea, button):focus-visible {
  outline: 3px solid #ef9b44;
  outline-offset: 2px;
}

.course-library-visual-response button[hidden] {
  display: none;
}

@media (max-width: 720px) {
  .course-library-visual-board { grid-template-columns: minmax(0, 1fr); }
  .course-library-visual-card h4,
  .course-library-visual-fact { min-height: 0; }
}

@media (max-width: 470px) {
  .course-library-visual-controls { grid-template-columns: minmax(0, 1fr); }
  .course-library-visual-time { grid-column: auto; }
}

.additional-course-application,
.additional-course-safety,
.additional-course-sources {
  padding: 17px 19px;
  border-radius: 8px;
}

.additional-course-application {
  border: 1px solid rgba(85, 214, 190, 0.32);
  background: rgba(85, 214, 190, 0.075);
}

.additional-course-application details {
  margin-top: 14px;
  border-top: 1px solid rgba(85, 214, 190, 0.22);
  padding-top: 12px;
}

.additional-course-application summary {
  width: fit-content;
  color: var(--accent);
  font-weight: 750;
  cursor: pointer;
}

.additional-course-application details p {
  margin-top: 10px;
}

.additional-course-practice {
  margin-top: 15px;
  padding-top: 14px;
  border-top: 1px solid rgba(85, 214, 190, 0.22);
}

.additional-course-practice h4 {
  margin: 0 0 5px;
  font-size: 0.9rem;
}

.additional-course-practice > p {
  font-size: 0.82rem;
}

.additional-course-practice-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin-top: 12px;
}

.additional-course-practice-tabs button {
  min-width: 0;
  padding: 8px 5px;
  border: 1px solid rgba(85, 214, 190, 0.28);
  border-radius: 6px;
  background: rgba(6, 19, 27, 0.44);
  color: #cce7e5;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.additional-course-practice-tabs button[aria-pressed="true"] {
  border-color: rgba(113, 244, 214, 0.8);
  background: rgba(85, 214, 190, 0.2);
  color: #eafff8;
}

.additional-course-practice-tabs button:focus-visible {
  outline: 2px solid #eafff8;
  outline-offset: 2px;
}

.additional-course-practice-panel {
  min-height: 70px;
  margin-top: 8px;
  padding: 10px 12px;
  border: 1px solid rgba(85, 214, 190, 0.18);
  border-radius: 6px;
  background: rgba(6, 19, 27, 0.27);
}

.additional-course-practice-panel strong {
  display: block;
  margin-bottom: 3px;
  font-size: 0.82rem;
}

.additional-course-practice-panel p {
  font-size: 0.81rem;
}

.additional-course-safety {
  border: 1px solid rgba(255, 204, 102, 0.24);
  background: rgba(255, 204, 102, 0.045);
}

.additional-course-safety h3 {
  color: var(--warn);
}

.additional-course-sources {
  border: 1px solid var(--line-soft);
  background: rgba(7, 13, 20, 0.32);
  font-size: 0.83rem;
}

.additional-course-sources a {
  color: var(--accent-2);
  overflow-wrap: anywhere;
}

.additional-course-nav {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  border-top: 1px solid var(--line-soft);
  padding-top: 16px;
}

@media (max-width: 850px) {
  #additionalCourseResumeJumpBtn:not([hidden]) { display: none; }
  .additional-course-view { grid-template-columns: 1fr; }
  .additional-course-article { gap: 14px; }
  .additional-course-sidebar { gap: 13px; padding: 10px; }
  .additional-course-view:not(.course-navigator-expanded) :is(#additionalCourseOverview, #additionalCourseLessonList) {
    display: none;
  }
  .additional-course-preview-visual { grid-template-columns: minmax(0, 1fr); }
  .additional-course-preview-image { width: 100%; }
  .additional-course-preview-frame-cue,
  .additional-course-preview-scroll-cue {
    display: block;
    margin: 0;
    color: #a9d6d4;
    font-size: 0.7rem;
    line-height: 1.35;
  }
}

@media (max-width: 560px) {
  .additional-course-nav { flex-direction: column; }
  .additional-course-nav button { width: 100%; }
  .additional-course-article { gap: 10px; padding: 15px; }
  .additional-course-article-head { flex-wrap: wrap; gap: 7px; }
  .additional-course-study-tools { flex: 1 1 100%; justify-content: flex-start; order: 2; }
  #additionalCoursePosition { margin-left: auto; }
  .additional-course-study-boundary { margin: -5px 0 0; }
  .additional-course-lead { line-height: 1.45; }
  .additional-course-preview { gap: 9px; padding: 12px; }
  .additional-course-section {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }
  .additional-course-section-index {
    justify-self: start;
    padding: 3px 7px;
    border: 1px solid rgba(85, 214, 190, 0.28);
    border-radius: 5px;
    background: rgba(85, 214, 190, 0.08);
    line-height: 1.2;
  }
  .additional-course-objectives { padding: 12px 14px; }
}

@media (max-width: 350px) {
  .additional-course-article { padding: 12px; }
  .additional-course-preview-current dl { grid-template-columns: minmax(0, 1fr); }
}

/* A contextual image stays next to its lesson's actual interactive lab. */
.additional-course-context-image {
  display: grid;
  grid-template-columns: minmax(0, 250px) minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  min-width: 0;
  margin: 0 0 14px;
  overflow: hidden;
  border: 1px solid rgba(158, 217, 216, 0.27);
  border-radius: 9px;
  background: rgba(12, 36, 45, 0.83);
}

.additional-course-context-image img {
  display: block;
  width: 100%;
  height: 154px;
  object-fit: cover;
  object-position: center;
}

.additional-course-context-image figcaption {
  display: grid;
  gap: 6px;
  min-width: 0;
  padding: 11px 14px 11px 0;
  color: #e2edef;
  font-size: 0.82rem;
  line-height: 1.42;
}

.additional-course-context-source {
  color: #9de6d7;
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.additional-course-context-limit {
  color: #b8cdd2;
  font-size: 0.71rem;
  line-height: 1.4;
}

@media (max-width: 560px) {
  .additional-course-context-image {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .additional-course-context-image img {
    height: clamp(132px, 43vw, 184px);
  }

  .additional-course-context-image figcaption {
    padding: 10px 12px 12px;
  }
}