.courses-section,
#courses {
  overflow: hidden;
}

#courses .section__head {
  max-width: 980px;
  margin-bottom: 44px;
}

#courses .section__head span {
  color: var(--primary);
  font-weight: 900;
}

#courses .section__head h2 {
  margin-bottom: 18px;
  font-size: clamp(38px, 5vw, 58px);
}

#courses .section__head p {
  max-width: 860px;
  margin: 0 auto;
  font-size: 20px;
}

.course-slider {
  position: relative;
  width: min(1210px, 100%);
  margin: 0 auto;
  overflow: visible;
}

.course-slider__viewport {
  overflow: hidden;
  padding: 12px 0 38px;
}

.course-cards {
  display: flex;
  gap: 26px;
  width: max-content;
  margin: 0;
  padding: 0;
  transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.course-slider__btn {
  position: absolute;
  top: 42%;
  z-index: 10;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 0;
  border-radius: 50%;
  background: #111;
  color: #fff;
  font-size: 42px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.24);
  transform: translateY(-50%);
  transition: transform 0.2s ease, background 0.2s ease, opacity 0.2s ease;
}

.course-slider__btn:hover {
  background: var(--primary);
  transform: translateY(-50%) scale(1.06);
}

.course-slider__btn:disabled {
  cursor: default;
  opacity: 0.28;
  transform: translateY(-50%);
}

.course-slider__btn--prev {
  left: -78px;
}

.course-slider__btn--next {
  right: -78px;
}

.course-card {
  position: relative;
  flex: 0 0 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  height: 390px;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: 54px;
  background: #303030;
  color: #fff;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 26px 52px rgba(34, 18, 91, 0.16);
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.course-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 34px 70px rgba(34, 18, 91, 0.24);
}

.course-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 150px;
  z-index: 0;
  display: block;
  border-radius: 54px 54px 20px 20px;
  background-color: #f3f3f3;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.course-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  height: 150px;
  border-radius: 0 0 54px 54px;
  background: #333;
}

.course-card[data-course="english"]::before {
  background-image: url("../assets/course-media/english.png");
}

.course-card[data-course="russian"]::before {
  background-image: url("../assets/course-media/russian.png");
}

.course-card[data-course="math"]::before {
  background-image: url("../assets/course-media/math.png");
}

.course-card[data-course="german"]::before {
  background-image: url("../assets/course-media/german.png");
}

.course-card[data-course="korean"]::before {
  background-image: url("../assets/course-media/korean.png");
  background-size: contain;
  background-color: #fff;
}

.course-card[data-course="native"]::before {
  background-image: url("../assets/course-media/native.png");
}

.course-card__flag,
.course-card__tag,
.course-card__more {
  display: none !important;
}

.course-card h3 {
  position: relative;
  z-index: 2;
  margin: 0 22px 12px;
  color: #fff;
  font-size: 27px;
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.course-card p {
  position: relative;
  z-index: 2;
  min-height: 44px;
  margin: 0 24px 24px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  line-height: 1.45;
}

.course-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.course-modal.course-modal--open {
  display: flex;
}

.course-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(14, 6, 41, 0.62);
  backdrop-filter: blur(8px);
}

.course-modal__dialog {
  position: relative;
  z-index: 1;
  width: min(920px, 100%);
  max-height: min(760px, 92vh);
  overflow-y: auto;
  border-radius: 32px;
  background: #fff;
  box-shadow: 0 30px 90px rgba(10, 4, 35, 0.32);
}

.course-modal__close {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 2;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: #f0ebff;
  color: var(--primary-dark);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

.course-modal__body {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 34px;
  padding: 42px;
}

.course-modal__info h3 {
  margin: 0 0 16px;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.05;
  color: var(--primary-dark);
  letter-spacing: -0.04em;
}

.course-modal__info p {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.course-modal__features {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-modal__features li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: #34285f;
  line-height: 1.5;
}

.course-modal__features li::before {
  content: "✓";
  display: grid;
  place-items: center;
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #efe8ff;
  color: var(--primary);
  font-weight: 900;
}

.course-modal__panel {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 26px;
  background: linear-gradient(135deg, #f6f2ff, #fff);
}

.course-modal__panel h4 {
  margin: 0 0 14px;
  color: var(--primary-dark);
  font-size: 24px;
}

.course-modal__field {
  display: block;
  margin-bottom: 18px;
}

.course-modal__field span {
  display: block;
  margin-bottom: 8px;
  color: var(--primary-dark);
  font-weight: 900;
}

.course-modal__field select {
  width: 100%;
  min-height: 54px;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  outline: none;
  background: #fff;
  color: var(--text);
  font: inherit;
}

.course-modal__schedule {
  margin-bottom: 20px;
  padding: 18px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--border);
}

.course-modal__schedule h4 {
  margin: 0 0 10px;
  font-size: 18px;
}

.course-modal__schedule ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.6;
}

.course-modal__note {
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.6;
}

.course-modal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.course-modal__trial,
.course-modal__secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 16px;
  text-decoration: none;
  font-weight: 900;
}

.course-modal__trial {
  background: linear-gradient(135deg, #8f63ff, #6c39f1);
  color: #fff;
  box-shadow: 0 16px 34px rgba(108, 57, 241, 0.3);
}

.course-modal__secondary {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--primary-dark);
}

@media (max-width: 1340px) {
  .course-slider__btn--prev {
    left: 10px;
  }

  .course-slider__btn--next {
    right: 10px;
  }
}

@media (min-width: 761px) and (max-width: 1180px) {
  .course-slider {
    width: 100%;
  }

  .course-slider__viewport {
    padding-inline: 10px;
  }

  .course-cards {
    gap: 18px;
  }

  .course-card {
    flex-basis: 170px;
    height: 280px;
    border-radius: 34px;
  }

  .course-card::before {
    bottom: 110px;
    border-radius: 34px 34px 18px 18px;
  }

  .course-card::after {
    height: 110px;
    border-radius: 0 0 34px 34px;
  }

  .course-card h3 {
    margin: 0 12px 8px;
    font-size: 20px;
  }

  .course-card p {
    min-height: 34px;
    margin: 0 12px 18px;
    font-size: 12px;
  }
}

@media (max-width: 760px) {
  #courses .section__head h2 {
    font-size: 38px;
  }

  #courses .section__head p {
    font-size: 17px;
  }

  .course-slider {
    width: 100%;
  }

  .course-slider__viewport {
    overflow-x: auto;
    overflow-y: hidden;
    padding-inline: 28px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .course-slider__viewport::-webkit-scrollbar {
    display: none;
  }

  .course-cards {
    transform: none !important;
    transition: none;
  }

  .course-card {
    flex-basis: min(82vw, 280px);
    height: 350px;
    border-radius: 42px;
    scroll-snap-align: center;
  }

  .course-card::before {
    bottom: 140px;
    border-radius: 42px 42px 22px 22px;
  }

  .course-card::after {
    height: 140px;
    border-radius: 0 0 42px 42px;
  }

  .course-slider__btn {
    display: none;
  }

  .course-modal__body {
    grid-template-columns: 1fr;
    padding: 30px 22px 24px;
  }

  .course-modal__dialog {
    border-radius: 24px;
  }

  .course-modal__close {
    top: 12px;
    right: 12px;
  }
}