.course-detail-page {
  background:
    radial-gradient(circle at top left, rgba(20, 148, 195, 0.14), transparent 24rem),
    linear-gradient(180deg, #f5fbff 0%, #ffffff 30%, #f8fcff 100%);
}

.course-detail-hero {
  padding: 28px 0 16px;
}

.course-detail-hero__grid,
.course-detail-layout,
.course-detail-proof,
.course-detail-roadmap,
.course-detail-contact {
  display: grid;
  gap: 20px;
}

.course-detail-hero__grid {
  align-items: center;
}

.course-detail-hero__content h1 {
  margin: 0 0 12px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.02;
}

.course-detail__eyebrow {
  display: inline-block;
  margin-bottom: 10px;
  color: #0b6aa2;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.course-detail-hero__lead {
  margin: 0;
  max-width: 56ch;
  color: #527188;
  font-size: 17px;
  line-height: 1.7;
}

.course-detail-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.course-detail-hero__meta span {
  padding: 8px 12px;
  border-radius: 999px;
  background: #e8f4fb;
  color: #0b6aa2;
  font-weight: 700;
}

.course-detail-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.course-detail__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  box-shadow: 0 14px 28px rgba(11, 106, 162, 0.18);
}

.course-detail__link {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid #cfe3ee;
  border-radius: 999px;
  font-weight: 700;
}

.course-detail-hero__visual {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  min-height: 320px;
  background: #dff2fa;
  box-shadow: 0 24px 48px rgba(16, 70, 96, 0.12);
}

.course-detail-hero__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-detail-hero__price {
  position: absolute;
  right: 16px;
  bottom: 16px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 12px 32px rgba(14, 58, 83, 0.12);
}

.course-detail-hero__price span,
.course-detail-card p {
  color: #587286;
}

.course-detail-hero__price strong {
  display: block;
  margin-top: 4px;
  font-size: 22px;
  color: #17324d;
}

.course-detail-section {
  padding: 8px 0 32px;
}

.course-detail-section--tight {
  padding-top: 0;
}

.course-detail-proof {
  grid-template-columns: 1fr;
}

.course-detail-proof__item {
  padding: 18px 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(11, 106, 162, 0.08);
  box-shadow: 0 20px 40px rgba(14, 58, 83, 0.08);
}

.course-detail-proof__item strong,
.course-detail-proof__item span {
  display: block;
}

.course-detail-proof__item strong {
  color: #17324d;
}

.course-detail-proof__item span {
  margin-top: 6px;
  color: #587286;
  line-height: 1.65;
}

.course-detail-content,
.course-detail-sidebar,
.course-detail-schedules,
.course-detail-testimonials {
  display: grid;
  gap: 16px;
}

.course-detail-card {
  padding: 24px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(11, 106, 162, 0.08);
  box-shadow: 0 20px 40px rgba(14, 58, 83, 0.08);
}

.course-detail-card h2 {
  margin: 0 0 16px;
  font-size: 28px;
}

.course-detail-benefits {
  display: grid;
  gap: 12px;
}

.course-detail-benefit {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  align-items: start;
  padding: 14px 16px;
  border-radius: 18px;
  background: #f4fbff;
}

.course-detail-benefit span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: #0b6aa2;
  color: #fff;
  font-weight: 700;
}

.course-detail-benefit p,
.course-schedule-card p {
  margin: 0;
  line-height: 1.65;
}

.course-detail-copy {
  line-height: 1.8;
}

.course-detail-copy p:first-child {
  margin-top: 0;
}

.course-detail-checklist {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-detail-checklist li {
  position: relative;
  padding-left: 28px;
  color: #587286;
  line-height: 1.7;
}

.course-detail-checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: #0b6aa2;
  font-weight: 700;
}

.course-detail-roadmap__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border-radius: 20px;
  background: #f6fbff;
  border: 1px solid #dcebf4;
}

.course-detail-roadmap__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 16px;
  background: linear-gradient(145deg, #0b6aa2, #1696c5);
  color: #fff;
  font-weight: 700;
}

.course-detail-roadmap__item h3 {
  margin: 0 0 8px;
}

.course-detail-roadmap__item p {
  margin: 0;
  color: #587286;
  line-height: 1.7;
}

.course-schedule-card {
  padding: 18px;
  border-radius: 20px;
  background: #f6fbff;
  border: 1px solid #dcebf4;
}

.course-schedule-card strong {
  display: block;
  margin-bottom: 10px;
  font-size: 18px;
}

.course-schedule-card__status {
  display: inline-flex;
  margin-top: 10px;
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}

.course-schedule-card__status.is-open {
  background: #e8fff1;
  color: #126d3d;
}

.course-schedule-card__status.is-full {
  background: #fff3df;
  color: #a56b00;
}

.course-schedule-card__status.is-closed {
  background: #f0f4f7;
  color: #546978;
}

.course-detail-video {
  overflow: hidden;
  border-radius: 22px;
}

.course-detail-video iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
}

.course-detail-faq {
  display: grid;
  gap: 14px;
}

.course-detail-faq details {
  padding: 18px 20px;
  border-radius: 20px;
  background: #f6fbff;
  border: 1px solid #dcebf4;
}

.course-detail-faq summary {
  cursor: pointer;
  font-weight: 700;
  color: #17324d;
}

.course-detail-faq p {
  margin: 12px 0 0;
  color: #587286;
  line-height: 1.7;
}

.course-detail-map {
  display: grid;
  gap: 16px;
}

.course-detail-map__embed {
  overflow: hidden;
  border-radius: 22px;
  min-height: 320px;
  background: #dff2fa;
}

.course-detail-map__embed iframe,
.course-detail-map__embed img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 320px;
  border: 0;
  object-fit: cover;
}

.course-detail-map__panel {
  padding: 20px;
  border-radius: 22px;
  background: #f6fbff;
  border: 1px solid #dcebf4;
}

.course-detail-contact div {
  padding: 16px 18px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid #dcebf4;
}

.course-detail-contact strong,
.course-detail-contact span,
.course-detail-mini strong,
.course-detail-mini span {
  display: block;
}

.course-detail-contact span,
.course-detail-mini span {
  margin-top: 5px;
  color: #587286;
}

.course-detail-contact a,
.course-detail-mini a,
.course-detail-card a {
  color: #0b6aa2;
  font-weight: 700;
}

.course-detail-mini {
  display: grid;
  gap: 6px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid #dcebf4;
}

.course-detail-card--sticky {
  position: sticky;
  top: 92px;
}

.course-detail-form {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.course-detail-form label {
  display: grid;
  gap: 8px;
  font-weight: 700;
  color: #17324d;
}

.course-detail-testimonials .testimonial-card {
  padding: 20px;
  border-radius: 20px;
  background: #f6fbff;
  border: 1px solid #dcebf4;
}

.course-detail-testimonials .testimonial-card__rating {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
  color: rgba(11, 106, 162, 0.18);
}

.course-detail-testimonials .testimonial-card__rating .is-active {
  color: #ffc84a;
}

.course-detail-testimonials .testimonial-card blockquote {
  margin: 0 0 14px;
  line-height: 1.7;
  color: #17324d;
}

.course-detail-testimonials .testimonial-card__author strong,
.course-detail-testimonials .testimonial-card__author span {
  display: block;
}

.course-detail-testimonials .testimonial-card__author span {
  margin-top: 4px;
  color: #587286;
}

@media (min-width: 900px) {
  .course-detail-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  }

  .course-detail-proof {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .course-detail-layout {
    grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
    align-items: start;
  }

  .course-detail-benefits,
  .course-detail-schedules,
  .course-detail-testimonials,
  .course-detail-roadmap,
  .course-detail-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .course-detail-map {
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  }
}

@media (max-width: 899px) {
  .course-detail-card--sticky {
    position: static;
  }
}