:root {
  --course-accent: #4f7f76;
}

.course-hero {
  max-width: 760px;
  margin: 0 auto 2rem;
  text-align: center;
}

.course-eyebrow {
  margin-bottom: 0.45rem;
  color: var(--course-accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.course-hero h2 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.75rem, 5vw, 2.65rem);
  letter-spacing: -0.04em;
}

.course-hero > p:last-child {
  color: var(--card-meta);
  line-height: 1.8;
}

.course-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 2rem 0 2.75rem;
}

.course-stats div {
  padding: 1.25rem;
  border: 1px solid rgba(79, 127, 118, 0.2);
  border-radius: 16px;
  background: rgba(79, 127, 118, 0.06);
  text-align: center;
}

.course-stats strong,
.course-stats span {
  display: block;
}

.course-stats strong {
  color: var(--course-accent);
  font-size: 1.8rem;
}

.course-stats span {
  margin-top: 0.2rem;
  color: var(--card-meta);
  font-size: 0.82rem;
}

.course-featured {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1rem 0 2.5rem;
}

.course-featured a {
  display: flex;
  min-height: 150px;
  padding: 1.35rem;
  flex-direction: column;
  justify-content: center;
  border: 1px solid rgba(79, 127, 118, 0.22);
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(79, 127, 118, 0.12), rgba(196, 154, 90, 0.08));
  color: var(--font-color);
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.course-featured a:hover {
  transform: translateY(-3px);
  border-color: var(--course-accent);
}

.course-featured span {
  color: var(--course-accent);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.course-featured strong {
  margin: 0.45rem 0;
  font-size: 1.15rem;
}

.course-featured small {
  color: var(--card-meta);
  line-height: 1.55;
}

.course-breadcrumb {
  display: flex;
  margin: 0 0 1.6rem;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: var(--card-meta);
  font-size: 0.82rem;
}

.course-breadcrumb a {
  color: var(--course-accent);
  text-decoration: none;
}

.course-breadcrumb span {
  opacity: 0.45;
}

.course-note-hero {
  padding: clamp(1.4rem, 4vw, 2.3rem);
  margin-bottom: 1.8rem;
  border: 1px solid rgba(79, 127, 118, 0.2);
  border-radius: 22px;
  background:
    radial-gradient(circle at 100% 0, rgba(196, 154, 90, 0.13), transparent 42%),
    linear-gradient(135deg, rgba(79, 127, 118, 0.1), rgba(79, 127, 118, 0.025));
}

.course-note-hero h2 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.8rem, 5vw, 2.65rem);
  letter-spacing: -0.04em;
}

.course-note-hero > p:not(.course-eyebrow) {
  max-width: 760px;
  margin: 0;
  color: var(--card-meta);
  line-height: 1.8;
}

.course-note-hero > div {
  display: flex;
  margin-top: 1.1rem;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.course-note-hero > div span {
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(79, 127, 118, 0.2);
  border-radius: 999px;
  background: var(--card-bg);
  color: var(--font-color);
  font-size: 0.76rem;
}

.course-module-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 1rem 0 2rem;
}

.course-module-grid article {
  position: relative;
  min-height: 150px;
  padding: 1.25rem;
  overflow: hidden;
  border: 1px solid rgba(79, 127, 118, 0.16);
  border-radius: 16px;
  background: var(--card-bg);
}

.course-module-grid article:first-child {
  grid-column: span 2;
}

.course-module-grid article > span {
  position: absolute;
  top: 0.65rem;
  right: 0.9rem;
  color: rgba(79, 127, 118, 0.13);
  font-size: 2.7rem;
  font-weight: 800;
  line-height: 1;
}

.course-module-grid h3 {
  position: relative;
  margin: 0 0 0.55rem;
  font-size: 1.05rem;
}

.course-module-grid p {
  position: relative;
  margin: 0;
  color: var(--card-meta);
  font-size: 0.9rem;
  line-height: 1.7;
}

@media (max-width: 768px) {
  .course-stats,
  .course-featured,
  .course-module-grid {
    grid-template-columns: 1fr;
  }

  .course-module-grid article:first-child {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .course-featured a {
    transition: none;
  }
}