/* ── Courses Hero ── */
.courses-hero {
  position: relative;
  height: 280px;
  background: linear-gradient(135deg, #2F3D2A 0%, #3d5e2a 60%, #4A6B3A 100%);
  overflow: hidden;
}

.courses-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.courses-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.25), rgba(47, 61, 42, 0.55));
}

.courses-hero__heading {
  position: relative;
  z-index: 1;
  font-size: var(--text-3xl);
  color: var(--color-text-light);
  text-align: center;
  padding: var(--space-9) var(--space-5);
  margin: 0;
}

/* ── Filter Bar ── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  padding: var(--space-5) var(--container-pad);
  background: var(--color-bg-page);
}

.filter-pill {
  background: transparent;
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-family: var(--font-body);
  cursor: pointer;
  transition: background var(--transition-base), color var(--transition-base);
}

.filter-pill[aria-pressed="true"],
.filter-pill:hover {
  background: var(--color-primary);
  color: var(--color-text-light);
  border-color: var(--color-primary);
}

/* ── Course Grid ── */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-7) var(--container-pad);
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-base);
  padding: var(--space-8) 0;
  display: none;
}

/* ── Course Card ── */
.course-card {
  background: var(--color-bg-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.course-card.hidden {
  display: none;
}

.course-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.13), 0 0 0 1px var(--color-border);
}

.course-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

.course-card__link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.course-card__image-wrap {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-bg-muted);
  display: flex;
  align-items: center;
  justify-content: center;
}

.course-card__image-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}

.course-card__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.45);
  pointer-events: none;
}

.course-card:hover .course-card__image-wrap img {
  transform: scale(1.04);
}

.course-card__tag {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 1;
  font-size: var(--text-xs);
  font-family: var(--font-body);
  font-weight: var(--weight-bold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  color: var(--color-text-light);
}

.course-card__tag[data-type="online"]  { background: var(--color-tag-online); }
.course-card__tag[data-type="irl"]     { background: var(--color-tag-irl); }
.course-card__tag[data-type="spring"]  { background: var(--color-tag-season); }
.course-card__tag[data-type="summer"]  { background: #C9A227; }
.course-card__tag[data-type="autumn"]  { background: #A0612A; }
.course-card__tag[data-type="winter"]  { background: #4A6B8A; }

.course-card__body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.course-card__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-3);
}

.course-card__desc {
  font-size: var(--text-base);
  color: var(--color-text-body);
  line-height: var(--leading-normal);
  flex: 1;
  margin-bottom: var(--space-4);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card__price {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  margin: 0;
}

.course-card__price.free {
  color: var(--color-accent);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .courses-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 580px) {
  .courses-grid { grid-template-columns: 1fr; }
  .courses-hero { height: 200px; }

  .courses-hero__heading {
    font-size: var(--text-2xl);
    padding: var(--space-7) var(--space-5);
  }
}