.course-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.course-card:hover {
  border-color: var(--color-border-2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.course-card-banner {
  height: 140px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.course-card-icon {
  font-size: 2.75rem;
  position: relative;
  z-index: 1;
}

.course-card-banner-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-surface-2), var(--color-bg-3));
}

.course-card-banner.cat-pentest .course-card-banner-bg {
  background: linear-gradient(135deg, rgba(239,68,68,0.1), rgba(124,58,237,0.1));
}
.course-card-banner.cat-osint .course-card-banner-bg {
  background: linear-gradient(135deg, rgba(0,212,255,0.08), rgba(0,255,136,0.06));
}
.course-card-banner.cat-malware .course-card-banner-bg {
  background: linear-gradient(135deg, rgba(245,158,11,0.1), rgba(239,68,68,0.08));
}
.course-card-banner.cat-tools .course-card-banner-bg {
  background: linear-gradient(135deg, rgba(0,212,255,0.1), rgba(124,58,237,0.08));
}
.course-card-banner.cat-ctf .course-card-banner-bg {
  background: linear-gradient(135deg, rgba(0,255,136,0.08), rgba(0,212,255,0.06));
}
.course-card-banner.cat-defense .course-card-banner-bg {
  background: linear-gradient(135deg, rgba(0,255,136,0.1), rgba(124,58,237,0.06));
}

.course-card-featured-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  padding: 0.25rem 0.6rem;
  background: var(--color-primary);
  color: #000;
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  z-index: 2;
}

.course-card-body {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.625rem;
  flex-wrap: wrap;
}

.course-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.course-card-desc {
  font-size: 0.84rem;
  color: var(--color-text-3);
  line-height: 1.55;
  margin: 0 0 1rem;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 0.875rem;
  border-top: 1px solid var(--color-border);
}

.course-card-info {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  color: var(--color-text-3);
}

.course-card-info svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

.course-card-cta {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  transition: gap var(--transition);
}

.course-card:hover .course-card-cta {
  gap: 0.5rem;
}