.teaching-heading > p:last-child { max-width: 64ch; margin-top: 1rem; color: var(--muted); }
.course-details { margin-top: clamp(1.35rem, 3vw, 2.8rem); overflow-anchor: none; }
.line-action {
  display: flex;
  align-items: center;
  gap: clamp(.6rem, 2vw, 1.4rem);
}
.course-toggle {
  list-style: none;
  cursor: pointer;
  scroll-margin-top: 1.5rem;
}
.course-toggle::-webkit-details-marker { display: none; }
.line-action::before, .line-action::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, #ff695a00, #ff9b8b8a);
}
.line-action::after { rotate: 180deg; }
.course-toggle-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .72rem;
  min-height: 48px;
  padding: .63rem 1.05rem;
  border: 1px solid var(--control-edge);
  border-radius: 999px;
  background-image: var(--control-surface);
  box-shadow: var(--control-shadow);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  color: #fff;
  font-size: .91rem;
  font-weight: 750;
  transition: background-color .4s var(--glide), border-color .4s var(--glide),
    box-shadow .4s var(--glide), scale .4s var(--glide);
}
.course-toggle:is(:hover, :focus-visible) .course-toggle-button,
.gallery-launch-button:is(:hover, :focus-visible) {
  border-color: var(--hover-border);
  background-color: var(--hover-tint);
  box-shadow: var(--control-shadow), 0 0 22px var(--hover-glow);
  scale: 1.035;
}
.course-toggle:focus-visible { outline: none; }
.course-toggle:focus-visible .course-toggle-button { outline: 2px solid var(--contrast); outline-offset: 4px; }
.course-toggle-icon { display: grid; place-items: center; color: var(--accent); font-size: 1.28rem; line-height: 1; transition: rotate .36s var(--glide); }
.course-toggle-close, .course-details[open] .course-toggle-open { display: none; }
.course-details[open] .course-toggle-close { display: inline; }
.course-details[open] .course-toggle-icon { rotate: 45deg; }
.course-panel { display: flow-root; }
.course-intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .9fr); align-items: center; gap: clamp(1.6rem, 5vw, 4rem); margin-top: clamp(1.6rem, 4.5vw, 4.4rem); }
.course-kicker { color: var(--contrast); }
.course-intro h3 {
  max-width: 15ch;
  margin: .5rem 0 .9rem;
  font: 800 clamp(2.5rem, 5.7vw, 5.4rem)/.91 var(--display);
  letter-spacing: -.015em;
  text-transform: uppercase;
}
.course-intro-copy > p:not(.eyebrow) { max-width: 54ch; margin-top: .65rem; color: var(--muted); }
.course-numbers {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .8rem .5rem;
  margin-top: 1.5rem;
}
.course-numbers > div { display: flex; flex-direction: column-reverse; justify-content: end; padding-left: .65rem; border-left: 1px solid #ff9b8b73; }
.course-numbers dd { color: var(--ink); font: 800 clamp(1.75rem, 3.2vw, 2.8rem)/.95 var(--display); }
.course-numbers dt { margin-top: .32rem; color: var(--muted); font-size: .74rem; line-height: 1.25; }
.course-art, .course-module {
  border: 1px solid var(--glass-edge);
  background-image: var(--glass-surface);
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}
.course-art { padding: .7rem; border-radius: clamp(15px, 2vw, 25px); }
.course-art img { width: 100%; height: auto; border-radius: clamp(9px, 1.45vw, 18px); }
.course-outline-heading { margin: clamp(1.8rem, 4vw, 3.8rem) 0 1.15rem; font-size: clamp(1.28rem, 2.4vw, 1.9rem); }
.course-modules {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--panel-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}
.course-module { padding: clamp(1.1rem, 2.1vw, 1.65rem); border-radius: 17px; }
.course-module-mark { display: flex; align-items: center; justify-content: space-between; gap: 1rem; color: var(--contrast); }
.course-module h4 { margin-top: .68rem; font-size: clamp(1rem, 1.6vw, 1.28rem); line-height: 1.25; }
.course-module p { margin-top: .42rem; color: var(--muted); font-size: .9rem; }
.course-actions { display: flex; flex-wrap: wrap; align-items: start; justify-content: space-between; gap: 1.2rem 2.5rem; margin-top: 1.65rem; }
.course-cohort h4 { margin-bottom: .65rem; font-size: 1.08rem; }
.course-recorded .text-link { margin-block: .4rem; }
.course-recorded > p:last-child { color: var(--muted); font-size: .86rem; }
.course-return { display: flex; width: fit-content; margin: 1.8rem auto .55rem; cursor: pointer; }
.course-return[hidden] { display: none; }

@media (max-width: 780px) {
  .course-intro { grid-template-columns: minmax(0, 1fr); }
  .course-art { width: min(100%, 540px); }
  .course-modules { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 480px) {
  .course-modules { grid-template-columns: minmax(0, 1fr); }
  .course-numbers { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  .course-toggle-button, .course-toggle-icon { transition: none; }
  .course-toggle:is(:hover, :focus-visible) .course-toggle-button,
  .gallery-launch-button:is(:hover, :focus-visible) { scale: none; }
}