.course-purchase {
  --purchase-primary: #157a61;
  --purchase-primary-dark: #0f5f4b;
  --purchase-accent: #0f8276;
  --purchase-ink: #142620;
  --purchase-muted: #687a73;
  --purchase-line: rgba(21, 122, 97, 0.12);
  --purchase-soft: #e8f4f0;
  --purchase-glass: rgba(255, 255, 255, 0.79);
  width: 100%;
  max-width: 1540px;
  margin: 0 auto 2.5rem;
  color: var(--purchase-ink);
}

.course-purchase a {
  text-decoration: none;
}

.course-purchase__hero {
  position: relative;
  min-height: 280px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 230px;
  gap: 2rem;
  align-items: end;
  padding: 2.35rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.88);
  border-radius: 6px;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.92), rgba(238, 248, 245, 0.72)),
    radial-gradient(circle at 88% 10%, rgba(15, 130, 118, 0.22), transparent 17rem);
  box-shadow: 0 18px 48px rgba(24, 64, 52, 0.08);
  backdrop-filter: blur(18px);
}

.course-purchase__hero::after {
  content: "";
  position: absolute;
  top: -95px;
  right: 9%;
  width: 270px;
  height: 270px;
  border: 1px solid rgba(21, 122, 97, 0.08);
  border-radius: 50%;
  pointer-events: none;
}

.course-purchase__hero > * {
  position: relative;
  z-index: 1;
}

.course-purchase__back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.35rem;
  color: var(--purchase-primary-dark);
  font-size: 0.72rem;
  font-weight: 700;
}

.course-purchase__back:hover {
  color: var(--purchase-accent);
}

.course-purchase__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.8rem;
  color: var(--purchase-muted);
  font-size: 0.69rem;
  font-weight: 700;
}

.course-purchase__status {
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  padding: 0.32rem 0.55rem;
  border-radius: 4px;
  background: #f4e9e6;
  color: #8e554c;
}

.course-purchase__hero h1 {
  max-width: 900px;
  margin: 0;
  color: var(--purchase-ink);
  font-size: clamp(2rem, 3.2vw, 3.2rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.045em;
}

.course-purchase__hero > div:first-child > p {
  max-width: 730px;
  margin: 1rem 0 1.2rem;
  color: var(--purchase-muted);
  font-size: 0.82rem;
  line-height: 1.65;
}

.course-purchase__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.25rem;
  color: #62766e;
  font-size: 0.7rem;
  font-weight: 600;
}

.course-purchase__meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.course-purchase__meta i {
  color: var(--purchase-primary);
}

.course-purchase__hero-mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 12px 30px rgba(24, 64, 52, 0.08);
  text-align: center;
  backdrop-filter: blur(16px);
}

.course-purchase__hero-mark > span {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 0.75rem;
  border-radius: 5px;
  background: var(--purchase-soft);
  color: var(--purchase-primary);
}

.course-purchase__hero-mark strong {
  font-size: 0.78rem;
}

.course-purchase__hero-mark small {
  margin-top: 0.25rem;
  color: var(--purchase-muted);
  font-size: 0.65rem;
}

.course-purchase__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 385px);
  gap: 1rem;
  align-items: start;
  margin-top: 1rem;
}

.course-purchase__content {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.course-purchase__preview,
.course-purchase__curriculum,
.course-purchase__requirements,
.course-purchase__checkout-card {
  border: 1px solid rgba(255, 255, 255, 0.88);
  border-radius: 6px;
  background: var(--purchase-glass);
  box-shadow: 0 14px 36px rgba(24, 64, 52, 0.07);
  backdrop-filter: blur(16px);
}

.course-purchase__preview {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.1fr);
  gap: 1.25rem;
  padding: 1rem;
}

.course-purchase__cover {
  position: relative;
  min-height: 320px;
  overflow: hidden;
  border-radius: 5px;
  background: linear-gradient(135deg, #dceee8, #b8dbd2);
}

.course-purchase__cover > img,
.course-purchase__cover-placeholder {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
}

.course-purchase__cover > img {
  display: block;
  object-fit: cover;
}

.course-purchase__cover-placeholder {
  display: grid;
  place-items: center;
  color: var(--purchase-primary);
  font-size: 2rem;
}

.course-purchase__cover-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 24, 19, 0.08) 28%, rgba(4, 24, 19, 0.74));
}

.course-purchase__cover-lock {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 5px;
  background: rgba(8, 34, 27, 0.7);
  color: #fff;
  transform: translate(-50%, -50%);
  backdrop-filter: blur(10px);
}

.course-purchase__cover-copy {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  color: #fff;
}

.course-purchase__cover-copy span {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.course-purchase__cover-copy strong {
  font-size: 0.86rem;
  line-height: 1.35;
}

.course-purchase__description {
  padding: 0.35rem 0.25rem;
}

.course-purchase__section-heading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.course-purchase__section-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 5px;
  background: var(--purchase-soft);
  color: var(--purchase-primary);
}

.course-purchase__section-heading > div > span {
  color: #82918c;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.course-purchase__section-heading h2 {
  margin: 0.22rem 0 0;
  color: var(--purchase-ink);
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.course-purchase__description > p {
  margin: 1rem 0 1.15rem;
  color: var(--purchase-muted);
  font-size: 0.77rem;
  line-height: 1.7;
}

.course-purchase__benefits {
  display: grid;
  gap: 0.5rem;
}

.course-purchase__benefits > div {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.65rem;
  align-items: center;
  padding: 0.58rem 0.65rem;
  border: 1px solid var(--purchase-line);
  border-radius: 5px;
  background: rgba(240, 247, 245, 0.68);
}

.course-purchase__benefits > div > i {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  background: #fff;
  color: var(--purchase-primary);
  font-size: 0.7rem;
}

.course-purchase__benefits span {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.course-purchase__benefits strong {
  font-size: 0.7rem;
}

.course-purchase__benefits small {
  color: var(--purchase-muted);
  font-size: 0.62rem;
}

.course-purchase__curriculum {
  padding: 1.2rem;
}

.course-purchase__lesson-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  margin-top: 1rem;
}

.course-purchase__lesson {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.65rem;
  align-items: center;
  padding: 0.7rem;
  border: 1px solid var(--purchase-line);
  border-radius: 5px;
  background: rgba(247, 250, 249, 0.74);
}

.course-purchase__lesson > span {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  background: var(--purchase-soft);
  color: var(--purchase-primary-dark);
  font-size: 0.65rem;
  font-weight: 800;
}

.course-purchase__lesson > div {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.26rem;
}

.course-purchase__lesson strong {
  overflow: hidden;
  font-size: 0.7rem;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.course-purchase__lesson small {
  display: flex;
  gap: 0.32rem;
  color: #82918c;
  font-size: 0.6rem;
}

.course-purchase__lesson > i {
  color: #9aaba5;
  font-size: 0.62rem;
}

.course-purchase__empty-lessons {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  padding: 2rem;
  color: var(--purchase-muted);
  font-size: 0.72rem;
}

.course-purchase__plan {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.75rem;
  align-items: center;
  margin-top: 0.75rem;
  padding: 0.75rem;
  border: 1px solid var(--purchase-line);
  border-radius: 5px;
  background: rgba(238, 247, 244, 0.72);
  color: var(--purchase-ink);
}

.course-purchase__plan:hover {
  border-color: rgba(21, 122, 97, 0.24);
  color: var(--purchase-ink);
}

.course-purchase__plan > span {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  background: #fff;
  color: #b44238;
}

.course-purchase__plan div {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.course-purchase__plan strong {
  font-size: 0.72rem;
}

.course-purchase__plan small {
  color: var(--purchase-muted);
  font-size: 0.64rem;
}

.course-purchase__plan > i {
  color: var(--purchase-primary);
}

.course-purchase__requirements {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: center;
  padding: 1rem 1.2rem;
}

.course-purchase__requirements > span {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  background: #dcf2ea;
  color: var(--purchase-primary);
}

.course-purchase__requirements h2 {
  margin: 0;
  font-size: 0.78rem;
}

.course-purchase__requirements p {
  margin: 0.28rem 0 0;
  color: var(--purchase-muted);
  font-size: 0.68rem;
  line-height: 1.5;
}

.course-purchase__checkout {
  position: sticky;
  top: 1rem;
}

.course-purchase__checkout-card {
  padding: 1.2rem;
}

.course-purchase__checkout-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.course-purchase__checkout-heading > div {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
}

.course-purchase__checkout-heading > div > span {
  color: #82918c;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.course-purchase__checkout-heading h2 {
  margin: 0;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.course-purchase__secure-icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 5px;
  background: var(--purchase-soft);
  color: var(--purchase-primary);
}

.course-purchase__price {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin: 1.2rem 0;
  padding: 1rem 0;
  border-top: 1px solid var(--purchase-line);
  border-bottom: 1px solid var(--purchase-line);
}

.course-purchase__price strong {
  color: var(--purchase-ink);
  font-size: 2rem;
  line-height: 1;
  letter-spacing: -0.04em;
}

.course-purchase__price strong sup {
  margin-right: 0.14rem;
  color: var(--purchase-primary);
  font-size: 0.85rem;
  vertical-align: super;
}

.course-purchase__price > span {
  color: var(--purchase-muted);
  font-size: 0.64rem;
  font-weight: 600;
}

.course-purchase__price .course-purchase__price-unavailable {
  font-size: 1rem;
  letter-spacing: 0;
}

.course-purchase__summary {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.course-purchase__summary > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--purchase-muted);
  font-size: 0.68rem;
}

.course-purchase__summary > div strong {
  color: var(--purchase-ink);
  font-size: 0.7rem;
}

.course-purchase__summary .course-purchase__summary-total {
  margin-top: 0.1rem;
  padding-top: 0.7rem;
  border-top: 1px dashed rgba(21, 122, 97, 0.18);
  color: var(--purchase-ink);
  font-weight: 700;
}

.course-purchase__summary .course-purchase__summary-total strong {
  color: var(--purchase-primary-dark);
  font-size: 0.85rem;
}

.course-purchase__buyer {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.65rem;
  align-items: center;
  margin: 1rem 0;
  padding: 0.7rem;
  border: 1px solid var(--purchase-line);
  border-radius: 5px;
  background: rgba(240, 247, 245, 0.68);
}

.course-purchase__buyer-avatar {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  background: #fff;
  color: var(--purchase-primary);
}

.course-purchase__buyer > div {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.course-purchase__buyer small {
  color: #82918c;
  font-size: 0.6rem;
}

.course-purchase__buyer strong,
.course-purchase__buyer > div > span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.course-purchase__buyer strong {
  font-size: 0.7rem;
}

.course-purchase__buyer > div > span {
  color: var(--purchase-muted);
  font-size: 0.61rem;
}

.course-purchase__checkout form {
  margin: 0;
}

.course-purchase__buy {
  width: 100%;
  min-height: 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border: 0;
  border-radius: 4px;
  background: var(--purchase-primary);
  box-shadow: 0 9px 20px rgba(21, 122, 97, 0.18);
  color: #fff;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.course-purchase__buy:hover:not(:disabled) {
  background: var(--purchase-primary-dark);
  transform: translateY(-1px);
}

.course-purchase__buy:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.course-purchase__security {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.38rem;
  margin-top: 0.75rem;
  color: var(--purchase-muted);
  font-size: 0.61rem;
}

.course-purchase__security i {
  color: var(--purchase-primary);
}

.course-purchase__methods {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.35rem;
  margin-top: 1rem;
}

.course-purchase__methods span {
  min-height: 31px;
  display: grid;
  place-items: center;
  border: 1px solid var(--purchase-line);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.75);
  color: #53675f;
  font-size: 0.56rem;
  font-weight: 800;
}

.course-purchase__methods i {
  color: #eb5d29;
  font-size: 1.2rem;
}

.course-purchase__links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--purchase-line);
}

.course-purchase__links a {
  color: var(--purchase-muted);
  font-size: 0.59rem;
  font-weight: 600;
}

.course-purchase__links a:hover {
  color: var(--purchase-primary);
}

@media (max-width: 1120px) {
  .course-purchase__layout {
    grid-template-columns: minmax(0, 1fr) 330px;
  }

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

  .course-purchase__cover {
    min-height: 310px;
  }

  .course-purchase__lesson-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .course-purchase__hero {
    grid-template-columns: 1fr;
  }

  .course-purchase__hero-mark {
    width: min(260px, 100%);
  }

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

  .course-purchase__checkout {
    position: static;
    order: -1;
  }
}

@media (max-width: 620px) {
  .course-purchase {
    margin-bottom: 1.5rem;
  }

  .course-purchase__hero {
    min-height: 0;
    padding: 1.4rem;
  }

  .course-purchase__hero h1 {
    font-size: 2rem;
  }

  .course-purchase__preview,
  .course-purchase__curriculum,
  .course-purchase__checkout-card {
    padding: 0.85rem;
  }

  .course-purchase__cover {
    min-height: 270px;
  }

  .course-purchase__meta {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 420px) {
  .course-purchase__hero {
    padding: 1.15rem;
  }

  .course-purchase__hero h1 {
    font-size: 1.65rem;
  }

  .course-purchase__cover {
    min-height: 235px;
  }

  .course-purchase__links {
    flex-wrap: wrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .course-purchase *,
  .course-purchase *::before,
  .course-purchase *::after {
    transition-duration: 0.01ms !important;
  }
}