.course-placeholder {
  --course-ink: #16231d;
  --course-muted: #53635a;
  --course-forest: #174f3a;
  --course-forest-dark: #103a2b;
  --course-moss: #dce9dc;
  --course-cream: #f7f5ed;
  --course-line: #d6ddd7;
  color: var(--course-ink);
  background: #fff;
}

.course-shell {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.course-hero {
  position: relative;
  overflow: hidden;
  padding: 9.5rem 0 6.5rem;
  background:
    radial-gradient(circle at 86% 18%, rgba(208, 224, 201, 0.95), transparent 32rem),
    linear-gradient(145deg, #f8f6ee 0%, #eef4ec 100%);
  border-bottom: 1px solid var(--course-line);
}

.course-hero::after {
  content: "";
  position: absolute;
  right: -8rem;
  bottom: -15rem;
  width: 34rem;
  height: 34rem;
  border: 1px solid rgba(23, 79, 58, 0.18);
  border-radius: 50%;
  box-shadow: 0 0 0 4rem rgba(23, 79, 58, 0.04), 0 0 0 8rem rgba(23, 79, 58, 0.025);
}

.course-hero__inner {
  position: relative;
  z-index: 1;
}

.course-eyebrow,
.course-kicker {
  margin: 0 0 0.75rem;
  color: var(--course-forest);
  font-family: Mulish, sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.course-status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1.4rem;
  padding: 0.45rem 0.75rem;
  color: var(--course-forest-dark);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(23, 79, 58, 0.24);
  border-radius: 999px;
  font-family: Mulish, sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
}

.course-status span {
  width: 0.55rem;
  height: 0.55rem;
  background: #bd7b19;
  border-radius: 50%;
}

.course-hero h1 {
  max-width: 920px;
  margin: 0;
  color: var(--course-ink);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.course-lede {
  max-width: 780px;
  margin: 1.75rem 0 0;
  color: #35473d;
  font-family: Mulish, sans-serif;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.65;
}

.course-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.course-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.1rem;
  border: 2px solid var(--course-forest);
  border-radius: 0.55rem;
  font-family: Mulish, sans-serif;
  font-weight: 800;
  text-decoration: none;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.course-button:hover {
  transform: translateY(-1px);
}

.course-button:focus-visible {
  outline: 3px solid #d19a3d;
  outline-offset: 3px;
}

.course-button--primary {
  color: #fff;
  background: var(--course-forest);
}

.course-button--primary:hover {
  color: #fff;
  background: var(--course-forest-dark);
}

.course-button--secondary {
  color: var(--course-forest-dark);
  background: rgba(255, 255, 255, 0.65);
}

.course-button--secondary:hover {
  color: var(--course-forest-dark);
  background: #fff;
}

.course-fine-print {
  max-width: 680px;
  margin: 1rem 0 0;
  color: var(--course-muted);
  font-family: Mulish, sans-serif;
  font-size: 0.82rem;
}

.course-section {
  padding: 5.5rem 0;
}

.course-section--tint {
  background: var(--course-cream);
  border-block: 1px solid var(--course-line);
}

.course-section-heading {
  max-width: 790px;
}

.course-section-heading h2,
.course-closing h2 {
  margin: 0;
  color: var(--course-ink);
  font-size: clamp(1.9rem, 4vw, 3.1rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.course-section-heading > p:last-child,
.course-closing p:last-child {
  margin: 1.1rem 0 0;
  color: var(--course-muted);
  font-family: Mulish, sans-serif;
  font-size: 1.05rem;
  line-height: 1.7;
}

.course-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 3rem 0;
  border: 1px solid var(--course-line);
  border-radius: 0.8rem;
  overflow: hidden;
}

.course-metrics div {
  padding: 1.5rem;
  background: #fff;
  border-right: 1px solid var(--course-line);
}

.course-metrics div:last-child {
  border-right: 0;
}

.course-metrics dt {
  color: var(--course-forest-dark);
  font-size: 1.8rem;
  font-weight: 800;
}

.course-metrics dd {
  margin: 0.3rem 0 0;
  color: var(--course-muted);
  font-family: Mulish, sans-serif;
  font-size: 0.86rem;
}

.course-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.course-card {
  padding: clamp(1.5rem, 4vw, 2.4rem);
  background: #fff;
  border: 1px solid var(--course-line);
  border-radius: 0.8rem;
  box-shadow: 0 16px 45px rgba(29, 53, 40, 0.07);
}

.course-card h3,
.course-roadmap h3 {
  margin: 0;
  color: var(--course-ink);
  font-size: 1.25rem;
}

.course-card ul {
  margin: 1.2rem 0 0;
  padding-left: 1.2rem;
  color: var(--course-muted);
  font-family: Mulish, sans-serif;
  line-height: 1.65;
}

.course-card li + li {
  margin-top: 0.75rem;
}

.course-build {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(2.5rem, 6vw, 6rem);
}

.course-roadmap {
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-roadmap li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  padding: 0 0 1.6rem;
  border-bottom: 1px solid var(--course-line);
}

.course-roadmap li + li {
  padding-top: 1.6rem;
}

.course-roadmap li > span {
  color: var(--course-forest);
  font-family: Mulish, sans-serif;
  font-size: 0.86rem;
  font-weight: 800;
}

.course-roadmap p {
  margin: 0.45rem 0 0;
  color: var(--course-muted);
  font-family: Mulish, sans-serif;
  line-height: 1.6;
}

.course-closing {
  padding: 5.5rem 0 6.5rem;
  text-align: center;
}

.course-closing .course-shell {
  max-width: 790px;
}

#course-overview {
  scroll-margin-top: 2rem;
}

@media (max-width: 760px) {
  .course-hero {
    padding: 7.5rem 0 4.5rem;
  }

  .course-hero h1 br {
    display: none;
  }

  .course-section,
  .course-closing {
    padding-block: 4rem;
  }

  .course-metrics,
  .course-columns,
  .course-build {
    grid-template-columns: 1fr;
  }

  .course-metrics div {
    border-right: 0;
    border-bottom: 1px solid var(--course-line);
  }

  .course-metrics div:last-child {
    border-bottom: 0;
  }
}

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

  .course-button:hover {
    transform: none;
  }
}