.courses-page {
  background:
    radial-gradient(ellipse 70% 40% at 80% 0%, rgba(20, 184, 166, 0.08), transparent 55%),
    var(--bio-bg);
}

.courses-page .navbar-links a[href="/courses"],
.courses-page .nav-drawer__links a[href="/courses"] {
  color: var(--bio-green);
}

.courses-hero {
  position: relative;
  overflow: hidden;
  padding: 36px 0 8px;
  text-align: center;
  opacity: 0;
  translate: 0 24px;
  transition:
    opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
    translate 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.courses-hero.is-visible {
  opacity: 1;
  translate: 0 0;
}

.courses-hero__glow {
  position: absolute;
  inset: auto 20% -40px;
  height: 120px;
  background: radial-gradient(ellipse, rgba(20, 184, 166, 0.18), transparent 70%);
  filter: blur(12px);
  pointer-events: none;
}

.courses-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--bio-green);
  font-size: 0.86rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.courses-hero h1 {
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  color: var(--bio-dark);
  margin-bottom: 10px;
}

.courses-hero h1 span {
  color: var(--bio-green);
}

.courses-hero__lead {
  max-width: 32rem;
  margin: 0 auto;
  color: var(--text-muted);
}

.courses-wrap {
  padding: 20px 0 72px;
}

.courses-panel {
  position: relative;
  border-radius: 36px;
  padding: 28px 22px 32px;
  background: var(--bio-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  translate: 0 36px;
  transition:
    opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1) 0.08s,
    translate 0.85s cubic-bezier(0.16, 1, 0.3, 1) 0.08s;
}

.courses-panel.is-visible {
  opacity: 1;
  translate: 0 0;
}

.courses-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}

.courses-tab {
  border: 1px solid var(--border-color);
  background: var(--bio-soft);
  color: var(--bio-dark);
  border-radius: 999px;
  padding: 0.7rem 1.2rem;
  font-size: 0.9rem;
  transition: background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease,
    border-color 0.25s ease, transform 0.25s ease;
}

.courses-tab:hover {
  transform: translateY(-2px);
  border-color: var(--bio-teal);
}

.courses-tab.is-active {
  background: var(--bio-green);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 10px 22px rgba(22, 160, 133, 0.28);
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.course-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 24px;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  opacity: 0;
  translate: 0 28px;
  transition:
    opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    translate 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow var(--motion),
    transform var(--motion);
}

.course-card.is-visible {
  opacity: 1;
  translate: 0 0;
}

.course-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.course-card__media {
  position: relative;
  height: 176px;
  overflow: hidden;
  background: linear-gradient(165deg, #0f766e 0%, #16a085 100%);
}

.course-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.course-card__media img.is-placeholder {
  object-fit: contain;
  object-position: center bottom;
  padding: 10px 16px 0;
}

.course-card:hover .course-card__media img {
  transform: scale(1.06);
}

.course-card__body {
  padding: 16px 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  text-align: right;
}

.course-card__body h3 {
  font-size: 1.05rem;
  color: var(--bio-dark);
  line-height: 1.5;
}

.course-card__body p {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.course-card__stat {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--bio-green);
  background: var(--bio-soft);
  border-radius: 999px;
  padding: 4px 10px;
}

.course-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 8px;
}

.course-card__price {
  background: var(--bio-highlight);
  color: var(--bio-dark);
  font-weight: 800;
  font-size: 0.84rem;
  padding: 6px 12px;
  border-radius: 999px;
}

.course-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--bio-green);
}

.courses-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 16px;
  color: var(--text-muted);
}

.darkmode .courses-hero h1,
.darkmode .course-card__body h3 {
  color: var(--tags-color);
}

html.darkmode .courses-page,
body.courses-page.darkmode {
  background:
    radial-gradient(ellipse 70% 40% at 80% 0%, rgba(45, 212, 191, 0.12), transparent 55%),
    #0d1f2d;
}

html.darkmode .courses-panel,
body.darkmode .courses-panel {
  background: #152a3d;
  border-color: rgba(45, 212, 191, 0.16);
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.35);
}

html.darkmode .course-card,
body.darkmode .course-card {
  background: #1a3044;
  border-color: rgba(45, 212, 191, 0.16);
}

html.darkmode .course-card__stat,
body.darkmode .course-card__stat {
  background: rgba(45, 212, 191, 0.14);
  color: #5eead4;
}

html.darkmode .course-card__price,
body.darkmode .course-card__price {
  color: #102a43;
}

.darkmode .courses-tab {
  background: var(--section-muted);
  color: var(--tags-color);
}

.darkmode .courses-tab.is-active {
  background: var(--bio-teal);
  color: #0d1f2d;
}

@media (prefers-reduced-motion: reduce) {
  .courses-hero,
  .courses-panel,
  .course-card {
    opacity: 1;
    translate: none;
    transition: none;
  }

  .course-card:hover,
  .course-card:hover .course-card__media img {
    transform: none;
  }
}

@media (max-width: 576px) {
  .courses-panel {
    padding: 22px 14px 24px;
    border-radius: 26px;
  }
}