.courses-page {
  --course-card-bg: var(--card-bg, #fff);
  --course-border: var(--border-color, #e5e7eb);
  --course-muted: var(--text-muted-color, #6b7280);
  --course-accent: var(--link-color, #0f766e);
  --course-accent-soft: color-mix(in srgb, var(--course-accent) 12%, transparent);
}

[data-mode="dark"] .courses-page {
  --course-card-bg: var(--card-bg, #1e1e1e);
  --course-border: var(--border-color, #374151);
  --course-muted: var(--text-muted-color, #9ca3af);
}

.courses-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(16.5rem, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
}

.course-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-height: 12.5rem;
  padding: 1.15rem 1.2rem 1.25rem;
  background: var(--course-card-bg);
  border: 1px solid var(--course-border);
  border-radius: 0.75rem;
  text-decoration: none !important;
  color: inherit;
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.course-card:hover,
.course-card:focus-visible {
  border-color: var(--course-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  outline: none;
}

.course-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  font-size: 0.8rem;
  color: var(--course-muted);
}

.course-card__duration {
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: var(--course-accent-soft);
  color: var(--course-accent);
  font-weight: 600;
}

.course-card__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
}

.course-card__summary {
  margin: 0;
  flex: 1;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--course-muted);
}

.course-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-card__tags li {
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--course-border);
  border-radius: 0.35rem;
  color: var(--course-muted);
}

.course-card__cta {
  margin-top: 0.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--course-accent);
}

.courses-empty {
  color: var(--course-muted);
}