/* =========================================================
   Courses Page — thedigitalladders.com/courses.html
   Foundation program cards, topic chips, hover effects
   ========================================================= */

/* ---------- Courses Hero ---------- */
.courses-hero {
  position: relative;
  padding: clamp(4rem, 10vw, 6.5rem) 0 clamp(3.5rem, 7vw, 5rem);
  background: var(--grad-hero);
  overflow: hidden;
  text-align: center;
}

.courses-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--grad-mesh);
  animation: coursesMesh 16s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes coursesMesh {
  0% { transform: scale(1) translate(0, 0); }
  100% { transform: scale(1.06) translate(1%, -1%); }
}

.courses-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 44rem;
  margin-inline: auto;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}

.courses-hero.is-ready .courses-hero__inner {
  opacity: 1;
  transform: translateY(0);
}

.courses-hero__title {
  margin-bottom: 1.15rem;
}

.courses-hero__sub {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.courses-hero .hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
}

/* ---------- Level Filter Strip ---------- */
.level-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
  margin-top: 0.5rem;
}

.level-strip a {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--border-strong);
  background: var(--white);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease), transform 0.3s var(--ease);
}

.level-strip a:hover {
  border-color: var(--orange);
  color: var(--orange);
  transform: translateY(-2px);
}

/* ---------- Course Cards Grid ---------- */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.course-card {
  position: relative;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease), border-color 0.45s var(--ease);
  min-height: 560px;
  height: 100%;
}

.course-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 107, 0, 0.28);
}

.course-card__media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.course-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.course-card:hover .course-card__media img {
  transform: scale(1.07);
}

.course-card__media-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(6, 26, 60, 0.55) 100%);
  pointer-events: none;
}

.course-card__level-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 2;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
  box-shadow: var(--shadow-xs);
}

.course-card--featured .course-card__level-badge {
  background: var(--grad-orange);
  color: var(--white);
}

.course-card__body {
  padding: 1.5rem 1.5rem 1.65rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.course-card__body h3 {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.course-card__body > p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.15rem;
}

.course-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.25rem;
}

.course-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  background: var(--light);
  font-size: 0.8rem;
  font-weight: 550;
  color: var(--text-muted);
}

.course-meta strong {
  color: var(--navy);
  font-weight: 650;
}

.course-meta--outcome {
  background: var(--soft-orange);
  color: var(--orange);
}

.course-meta--outcome strong {
  color: var(--orange);
}

/* Topic chips / tags */
.course-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.5rem;
}

.course-topics .tag {
  font-size: 0.78rem;
  padding: 0.38rem 0.75rem;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease);
}

.course-card:hover .course-topics .tag {
  transform: translateY(-1px);
}

.course-card__footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.65rem;
  border-top: 1px solid var(--border);
  padding-top: 1.15rem;
}

.course-card__footer .btn {
  flex-shrink: 0;
}

.course-card__footer .btn--outline {
  margin-right: auto;
}

.course-card__hint {
  font-size: 0.82rem;
  color: var(--text-light);
  font-weight: 550;
}

/* Accent variants per level */
.course-card--l1 { --course-accent: var(--soft-blue); }
.course-card--l2 { --course-accent: var(--soft-orange); }
.course-card--l3 { --course-accent: #EAF2FF; }
.course-card--l4 { --course-accent: #FFF4EC; }
.course-card--l5 { --course-accent: #EAF2FF; }

.course-card--l1 .course-card__body,
.course-card--l3 .course-card__body,
.course-card--l5 .course-card__body {
  background: linear-gradient(180deg, var(--white) 0%, rgba(234, 242, 255, 0.35) 100%);
}

.course-card--l2 .course-card__body,
.course-card--l4 .course-card__body {
  background: linear-gradient(180deg, var(--white) 0%, rgba(255, 244, 236, 0.45) 100%);
}

/* Featured full-width card (Level 5) */
.course-card--wide {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
}

.course-card--wide .course-card__media {
  aspect-ratio: auto;
  min-height: 100%;
}

.course-card--wide .course-card__body {
  justify-content: center;
}

/* ---------- Courses CTA ---------- */
.courses-cta {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  padding: clamp(2.5rem, 6vw, 4rem);
  background: var(--grad-blue);
  color: var(--white);
  text-align: center;
}

.courses-cta h2 {
  color: var(--white);
  margin-bottom: 0.75rem;
}

.courses-cta p {
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 1.75rem;
  max-width: 32rem;
  margin-inline: auto;
}

.courses-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

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

  .course-card--wide {
    grid-template-columns: 1fr;
  }

  .course-card--wide .course-card__media {
    aspect-ratio: 16 / 9;
    min-height: 0;
  }
}

@media (max-width: 640px) {
  .course-card__footer {
    flex-direction: column;
    align-items: stretch;
  }

  .course-card__footer .btn {
    width: 100%;
  }
}