/* Student layout. The desktop owner workspace uses its own stylesheet. */
.learning-page { background: #fbfaf7; }
.learning-app {
  font-size: 16px;
  line-height: 1.55;
  --lesson-icon-column: 22px;
  --lesson-card-inset: 6px;
  --academy-badge-edge: #bd963e;
}
.learning-app .shell { max-width: 840px; }
.learning-app .brand { min-height: 92px; }
.learning-app .brand-logo img { width: clamp(204px, 61vw, 276px); }
.learning-app .brand-logo > span {
  margin-top: 9px;
  font-size: 12px;
  font-weight: 500;
}
.learning-app #main {
  padding-bottom: max(28px, env(safe-area-inset-bottom));
}
.learning-app .preview-bar {
  align-items: center;
  margin-top: 16px;
  font-size: 14px;
}
.learning-app .preview-bar strong { font-weight: 500; }
.learning-app .preview-bot { font-size: 13px; }
.learning-app .preview-bar .text-button {
  align-items: center;
  min-height: 44px;
  padding-inline: 4px;
  border: 0;
  background: transparent;
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
}
.learning-intro { margin: 27px 0 8px; }
.learning-intro h1 { margin: 0; font-size: clamp(24px, 3.5vw, 30px); font-weight: var(--ns-fw-regular); }
.learning-intro h1:focus, .course-heading h1:focus { outline: none; }

.learning-course {
  padding: 14px 0 18px;
  border-bottom: 1px solid var(--line);
}
.course-trigger, .lesson-tap {
  display: flex;
  align-items: center;
  gap: 13px;
  width: 100%;
  min-width: 0;
  min-height: 48px;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  text-align: left;
  color: var(--ns-ink);
}
a.course-trigger:hover, button.lesson-row:hover {
  background: #ece5d8;
}
.learning-image {
  position: relative;
  display: block;
  flex: none;
  overflow: hidden;
  background: #e8e2d7;
  aspect-ratio: 16 / 9;
}
.learning-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.course-thumb { width: clamp(100px, 32vw, 170px); }
.lesson-thumb {
  align-self: stretch;
  width: calc(clamp(78px, 22vw, 112px) + var(--lesson-card-inset));
  aspect-ratio: 11 / 8;
}
.course-label, .lesson-label {
  display: grid;
  min-width: 0;
  flex: 1;
  gap: 3px;
  font-size: 14px;
  line-height: 1.42;
  color: var(--muted);
  overflow-wrap: anywhere;
}
.course-label strong, .lesson-label strong {
  color: var(--ns-ink);
}
.course-label strong {
  font-size: clamp(18px, 5vw, 26px);
  font-weight: var(--ns-fw-medium);
}
.course-label .access-term { color: var(--ns-ink-mid); font-weight: 500; }
.lesson-label strong {
  color: var(--ns-dark);
  font-size: clamp(17px, 4.6vw, 19px);
  font-weight: var(--ns-fw-regular);
}
.lesson-label {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  column-gap: 6px;
  padding-block: 8px 6px;
}
.lesson-number { white-space: nowrap; }
.lesson-label .unavailable { grid-column: 2; }

.learning-progress {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}
.learning-progress > div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}
.learning-progress progress {
  height: 5px;
  margin-top: 8px;
  border-radius: 4px;
}
.course-nav { margin-top: 10px; }
.course-back {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  color: var(--accent);
  font-size: 15px;
  font-weight: 500;
}
.course-back:hover { text-decoration: underline; }
.course-heading { margin: 3px 0 18px; }
.course-heading h1 {
  margin: 0;
  font-size: clamp(27px, 7.4vw, 43px);
  font-weight: 500;
  line-height: 1.16;
}
.course-heading h1 span {
  display: block;
  margin-top: 2px;
  color: var(--ns-academy-gold-dark);
}
.course-heading p {
  margin: 8px 0 15px;
  color: var(--muted);
  font-size: 15px;
}
.course-heading .learning-progress { margin: 0; }
.course-group {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  margin-top: 10px;
  color: var(--accent);
  font-weight: 500;
}
.course-group:hover { text-decoration: underline; }
.module-list { display: grid; gap: 8px; }
.module-group { min-width: 0; }
.module-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--lesson-icon-column);
  align-items: center;
  gap: 8px;
  min-height: 48px;
  padding-block: 11px;
  list-style: none;
  cursor: pointer;
  color: var(--ns-ink);
  font-size: clamp(18px, 5vw, 22px);
  font-weight: 500;
  line-height: 1.35;
}
.module-summary::-webkit-details-marker { display: none; }
.module-summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.module-heading {
  display: flex;
  align-items: flex-start;
  min-width: 0;
  gap: 7px;
  padding-block-start: 2px;
}
.module-label { min-width: 0; overflow-wrap: anywhere; }
.module-numbering { flex: none; }
.learning-chevron {
  flex: none;
  width: 9px;
  height: 9px;
  margin: 0 6px 0 5px;
  border-right: 2px solid var(--ns-cta-gold-line);
  border-bottom: 2px solid var(--ns-cta-gold-line);
  transform: rotate(45deg);
}
.course-trigger .learning-chevron {
  margin-inline-end: 6.5px;
  transform: rotate(-45deg);
}
details[open] > summary .learning-chevron { transform: rotate(225deg); }
.module-lessons {
  display: grid;
  gap: 12px;
  margin: 5px 0 0;
  padding: 0;
  list-style: none;
}
.lesson-entry {
  /* Let the frame extend slightly into the course gutter. */
  margin-inline: -7px;
  padding-inline-end: var(--lesson-card-inset);
  border: 1px solid #ddd5c6;
  background: var(--ns-white);
}
.lesson-entry:is([data-state="available"], [data-state="received"]) {
  border-color: var(--academy-badge-edge);
  background: #fff8e9;
}
.lesson-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--lesson-icon-column);
  align-items: center;
  gap: 11px;
}
button.lesson-row {
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  text-align: left;
}
.lesson-tap { align-self: stretch; }
.lesson-row[aria-busy="true"] { opacity: .68; cursor: progress; }
.unavailable { color: #6d6251; }
.module-toggle, .lesson-status {
  position: relative;
  inset-inline-end: 5px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  justify-self: center;
  place-items: center;
  width: var(--lesson-icon-column);
  height: 44px;
}
.module-toggle { height: 24px; }
.module-toggle .learning-chevron { margin: 0; }
.lesson-status { color: var(--muted); }
button.lesson-row .lesson-status { color: var(--ns-cta-gold-line); }
.lesson-watched {
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 50%;
  background: var(--ns-academy-gold-light);
  color: var(--ns-white);
}
.lesson-watched svg { transform: translateX(-1px); filter: drop-shadow(0 .4px .5px #694b1180); }
.lesson-opening {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  pointer-events: none;
}
.lesson-message { margin: 6px 0 0; color: #426044; font-size: 14px; }
.module-empty { margin: 0; color: var(--muted); }
.course-end {
  margin-top: 24px;
  border-top: 1px solid var(--line);
}

@media (max-width: 650px) {
  .learning-app .shell {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }
  .learning-app .brand { min-height: 86px; }
  .learning-intro { margin-top: 22px; }
  .learning-app .preview-bar { padding: 5px 10px; }
  .course-trigger, .lesson-tap { gap: 11px; }
}