.course-detail-layout {
  display: grid;
  grid-template-columns: 2.2fr 1fr;
  gap: 3rem;
}

.course-route {
  margin-bottom: 2.5rem;
  padding: 2rem 0 1rem;
}

.course-route-heading {
  margin-bottom: 3rem;
  text-align: center;
}

.route-kicker {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--accent-amber);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.course-route-heading h3 {
  margin-bottom: 0.5rem;
  color: var(--primary);
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
}

.course-route-heading p {
  color: var(--text-muted);
  font-size: 0.98rem;
}

.route-road {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4.5rem;
  padding: 1rem 0 2rem;
}

.route-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  overflow: hidden;
  background: var(--border-light);
  border-radius: 99px;
  transform: translateX(-50%);
}

.route-line::after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--route-progress, 0%);
  background: var(--accent-gradient);
  border-radius: inherit;
  content: "";
  transition: height 0.2s ease-out;
}

.route-stop {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 74px minmax(0, 1fr);
  align-items: center;
  min-height: 170px;
}

.route-stop-left .route-card {
  grid-column: 1;
  grid-row: 1;
  justify-self: end;
}

.route-stop-right .route-card {
  grid-column: 3;
  grid-row: 1;
  justify-self: start;
}

.route-marker {
  grid-column: 2;
  grid-row: 1;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin: 0 auto;
  background: var(--bg-surface);
  border: 4px solid var(--accent-gold);
  border-radius: 50%;
  box-shadow: 0 0 0 8px rgba(201, 162, 39, 0.12), 0 8px 18px rgba(10, 37, 64, 0.12);
  color: var(--primary);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 800;
  transform: scale(0.7);
  opacity: 0;
  transition: transform 0.6s ease, opacity 0.6s ease;
}

.route-marker::before {
  position: absolute;
  width: 14px;
  height: 14px;
  background: var(--accent-gold);
  border: 3px solid var(--bg-surface);
  border-radius: 50%;
  content: "";
  opacity: 0;
  transform: scale(0);
  transition: transform 0.3s ease 0.25s, opacity 0.3s ease 0.25s;
}

.route-marker span {
  transition: opacity 0.2s ease;
}

.route-card {
  width: min(100%, 360px);
  padding: 1.5rem 1.6rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(28px);
  transition: transform 0.65s ease, opacity 0.65s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.route-card-wide {
  width: min(100%, 520px);
}

.route-stop-left .route-card {
  transform: translateX(-28px);
}

.route-stop-right .route-card {
  transform: translateX(28px);
}

.route-stop.is-visible .route-card {
  opacity: 1;
  transform: translateX(0);
}

.route-stop.is-visible .route-marker {
  opacity: 1;
  transform: scale(1);
}

.route-stop.is-visible .route-marker::before {
  opacity: 1;
  transform: scale(1);
}

.route-stop.is-visible .route-marker span {
  opacity: 0;
}

.route-card:hover {
  border-color: rgba(201, 162, 39, 0.45);
  box-shadow: var(--shadow-md);
}

.route-stage {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--accent-amber);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.route-card h4 {
  margin-bottom: 0.7rem;
  color: var(--primary);
  font-family: var(--font-heading);
  font-size: 1.3rem;
}

.route-card p {
  margin-bottom: 1rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.route-pass-mark {
  margin-bottom: 1.1rem !important;
  color: var(--text-muted);
  font-size: 0.88rem !important;
}

.route-subject-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.route-subject {
  padding: 0.8rem 0.9rem;
  background: var(--bg-main);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
}

.route-subject h5 {
  margin-bottom: 0.35rem;
  color: var(--primary);
  font-family: var(--font-heading);
  font-size: 0.95rem;
}

.route-subject small {
  display: block;
  margin: -0.1rem 0 0.4rem;
  color: var(--text-light);
  font-size: 0.76rem;
}

.route-subject > div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  color: var(--text-muted);
  font-size: 0.76rem;
}

.route-subject > div strong {
  color: var(--primary);
}

.route-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.route-tags .articleship-tag {
  font-size: 0.74rem;
}

@media (max-width: 960px) {
  .course-detail-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 760px) {
  .course-route {
    padding-top: 1rem;
  }

  .course-route-heading {
    margin-bottom: 2rem;
    text-align: left;
  }

  .route-road {
    gap: 1.4rem;
    padding: 0;
  }

  .route-line {
    display: none;
  }

  .route-stop,
  .route-stop-left,
  .route-stop-right {
    display: block;
    min-height: 0;
  }

  .route-marker {
    display: none;
  }

  .route-card,
  .route-stop-left .route-card,
  .route-stop-right .route-card {
    width: 100%;
    margin-left: 0;
    opacity: 1;
    transform: none;
  }

  .route-stop.is-visible .route-card,
  .route-stop.is-visible .route-stop-left .route-card,
  .route-stop.is-visible .route-stop-right .route-card {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .route-line::after,
  .route-card,
  .route-marker,
  .route-marker::before {
    transition: none;
  }

  .route-card,
  .route-stop-left .route-card,
  .route-stop-right .route-card,
  .route-marker {
    opacity: 1;
    transform: none;
  }
}