/* Course Info — responsive & modern look */

:root {
  --hero-min-h: clamp(280px, 48vh, 520px);
  --chip: #ffffff;
  --chip-bd: var(--border);
  --chip-ink: #0b1220;
  --gold: #c19213;
  --chip-shadow: 0 8px 22px rgba(16, 24, 40, .12);
}

/* ---------- Hero ---------- */
.ci-hero {
  position: relative;
  background: #000;
  overflow: hidden;
}

.ci-hero img {
  width: 100%;
  height: var(--hero-min-h);
  object-fit: cover;
  display: block;
}

/* Overlay content sits above the image */
.ci-hero-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.2rem clamp(1rem, 4vw, 2rem);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.55), transparent 70%);
  color: #fff;
}

.ci-pill {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .35rem .7rem;
  border-radius: 999px;
  background: var(--chip);
  border: 1px solid var(--chip-bd);
  color: var(--chip-ink);
  font-weight: 700;
  font-size: 0.9rem;
}

.ci-hero-overlay h1 {
  margin: .6rem 0 .2rem;
  font-size: clamp(1.5rem, 2.8vw, 2.3rem);
  line-height: 1.2;
}

.ci-hero-overlay .muted {
  color: #ddd;
  font-size: clamp(0.9rem, 1.4vw, 1.1rem);
}

.ci-meta {
  margin-top: .5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.ci-chip {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--chip-ink);
  font-weight: 700;
  font-size: 0.85rem;
}

/* ---------- Body container ---------- */
.ci-body {
  display: grid;
  gap: clamp(14px, 2.2vw, 20px);
  padding: clamp(14px, 3vw, 22px) 1rem;
  max-width: 1000px;
  margin: auto;
}

/* ---------- Action bar ---------- */
.ci-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1rem;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.ci-actions .price {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 700;
}

.ci-actions .small {
  font-size: .95rem;
}

.ci-actions .act-right {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.ci-actions .btn.ghost {
  background: #fff;
  border: 1px solid var(--border);
}

.ci-actions .btn[disabled],
.ci-actions a[aria-disabled="true"] {
  opacity: .5;
  pointer-events: none;
}

/* ---------- Sections ---------- */
.ci-section {
  background: #fff;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 1rem 1.2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.ci-section h2 {
  margin-bottom: 8px;
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
}

.ci-list {
  display: grid;
  gap: 8px;
  padding-left: 1.2em;
}

.ci-list li {
  margin-left: .2em;
}

/* ---------- Responsive fixes ---------- */
@media (max-width: 768px) {
  .ci-hero-overlay {
    padding: 0.8rem 1rem;
  }

  .ci-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .ci-actions .act-right {
    width: 100%;
    justify-content: space-between;
  }

  .ci-meta {
    gap: 4px;
  }
}

@media (max-width: 480px) {
  .ci-hero-overlay h1 {
    font-size: 1.6rem;
  }

  .ci-actions .act-right {
    flex-direction: column;
    gap: 0.5rem;
  }

  .ci-actions .btn,
  .ci-actions .btn.ghost {
    width: 100%;
    text-align: center;
  }
}

/* Hide requirements if not needed */
#ciReqWrap[hidden] {
  display: none !important;
}