/* ==========================================================================
   Course page — hero, tabs, sidebar, modules/FAQ accordion, reviews
   ========================================================================== */

/* ---- Hero (top course card) ------------------------------------------- */
.course-hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 20px;
  width: 100%;
}

.course-hero__image {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 738 / 551;
  max-height: min(70vh, 520px);
}

.course-hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-hero__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(19, 6, 45, 0.1);
}

.course-hero__info {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 36px;
}

.course-hero__top {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

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

.chip--pink {
  background: var(--color-pink-bg);
}

.course-hero__badges .chip {
  padding: 8px 12px;
  font-size: 14px;
}

.course-hero__badges .chip svg {
  width: 18px;
  height: 18px;
}

.course-hero__heading {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.course-hero__title {
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: var(--fw-medium);
  line-height: 1.3;
}

.course-hero__desc {
  font-size: 16px;
  color: var(--color-text-80);
  line-height: 1.5;
}

.course-hero__rating {
  display: flex;
  align-items: center;
  gap: 6px;
}

.course-hero__rating svg {
  width: 24px;
  height: 24px;
  color: var(--color-star);
}

.course-hero__rating .rating__value {
  font-size: 16px;
  color: var(--color-text);
  margin-left: 4px;
}

.course-hero__rating .rating__count {
  font-size: 16px;
  color: var(--color-text-60);
}

.course-hero__author {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--color-grey-input);
  border-radius: var(--radius-md);
  padding: 12px;
  color: inherit;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.course-hero__author:hover {
  background: var(--color-purple-light);
}

.course-hero__author-photo {
  width: 74px;
  height: 74px;
  border-radius: 50px;
  overflow: hidden;
  flex-shrink: 0;
}

.course-hero__author-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-hero__author-name {
  font-size: 22px;
  font-weight: var(--fw-medium);
}

.course-hero__author-role {
  font-size: 16px;
  color: var(--color-text-80);
}

.course-hero__buy {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.course-hero__price {
  font-size: 30px;
  font-weight: var(--fw-semibold);
}

.course-hero__buy-btn {
  width: 100%;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-purple);
  color: var(--color-white);
  font-weight: var(--fw-medium);
  font-size: 16px;
}

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

.course-hero__action {
  flex: 1;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-purple-light);
  color: var(--color-purple);
  font-weight: var(--fw-medium);
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.course-hero__action svg {
  width: 24px;
  height: 24px;
}

/* ---- Tabs --------------------------------------------------------------- */
.tabs {
  display: flex;
  gap: 48px;
  width: 100%;
  border-bottom: 2px solid var(--color-grey-input);
  overflow-x: auto;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tabs__link {
  flex-shrink: 0;
  padding-bottom: 12px;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: var(--fw-regular);
  color: var(--color-text-60);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.tabs__link:hover {
  color: var(--color-text);
}

.tabs__link.is-active {
  color: var(--color-text);
  font-weight: var(--fw-medium);
  border-color: var(--color-purple);
}

/* ---- Tab panels + layout ------------------------------------------------ */
.tab-panel {
  display: none;
  width: 100%;
}

.tab-panel.is-active {
  display: block;
}

.course-layout {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  width: 100%;
}

.course-layout__main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ---- Sidebar: "Что вы получите" ----------------------------------------- */
.course-sidebar {
  width: 306px;
  flex-shrink: 0;
  background: var(--color-pink-bg);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.course-sidebar__title {
  font-size: 22px;
  font-weight: var(--fw-medium);
}

.course-sidebar__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.course-sidebar__item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  color: var(--color-text-80);
}

.course-sidebar__item svg {
  width: 20px;
  height: 20px;
  color: var(--color-purple);
  flex-shrink: 0;
}

.course-sidebar__buy {
  width: 100%;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-purple);
  color: var(--color-white);
  font-weight: var(--fw-medium);
  font-size: 16px;
}

/* ---- Description tab: about + checklist --------------------------------- */
.about {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about__title {
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: var(--fw-medium);
}

.about__text {
  font-size: 16px;
  color: var(--color-text-80);
  line-height: 1.5;
}

.checklist {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.checklist__title {
  font-size: 22px;
  font-weight: var(--fw-medium);
}

.checklist__item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  color: var(--color-text-80);
}

.checklist__item svg {
  width: 22px;
  height: 22px;
  color: var(--color-purple);
  flex-shrink: 0;
}

/* ---- Accordion (used for course modules + FAQ) --------------------------- */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.accordion-item {
  background: var(--color-grey-input);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.accordion-item__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
}

.accordion-item__heading {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.accordion-item__badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  background: var(--color-purple-light);
  color: var(--color-purple);
  font-size: 14px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

.accordion-item__title {
  font-size: 22px;
  font-weight: var(--fw-medium);
  line-height: 1.3;
}

.accordion-item__toggle {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  color: var(--color-text-60);
  transition: transform var(--transition-base), color var(--transition-base);
}

.accordion-item.is-open .accordion-item__toggle {
  transform: rotate(180deg);
  color: var(--color-purple);
}

.accordion-item__body {
  display: none;
  font-size: 16px;
  color: var(--color-text-80);
  line-height: 1.5;
}

.accordion-item.is-open .accordion-item__body {
  display: block;
}

/* ---- Author tab ----------------------------------------------------------- */
.author-block {
  display: flex;
  gap: 24px;
  background: var(--color-grey-input);
  border-radius: var(--radius-md);
  padding: 20px;
  width: 100%;
}

.author-block__photo {
  width: 200px;
  height: 200px;
  border-radius: 110px;
  overflow: hidden;
  flex-shrink: 0;
}

.author-block__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-block__info {
  display: flex;
  flex-direction: column;
  gap: 24px;
  flex: 1;
  min-width: 0;
}

.author-block__head {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.author-block__name-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.author-block__name {
  font-size: 22px;
  font-weight: var(--fw-medium);
}

.author-block__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-purple-light);
  color: var(--color-purple);
  font-size: 12px;
  padding: 6px 8px;
  border-radius: 4px;
}

.author-block__badge svg {
  width: 16px;
  height: 16px;
}

.author-block__role {
  font-size: 16px;
  color: var(--color-purple);
}

.author-block__bio {
  font-size: 16px;
  color: var(--color-text-80);
  line-height: 1.5;
}

/* ---- Reviews tab ------------------------------------------------------------ */
.reviews {
  display: flex;
  flex-direction: column;
  gap: 24px;
  width: 100%;
  align-items: center;
}

.reviews__title {
  font-size: 28px;
  font-weight: var(--fw-medium);
}

.reviews-top {
  display: flex;
  gap: 20px;
  width: 100%;
  flex-wrap: wrap;
  align-items: stretch;
}

.reviews-score {
  background: #fff8e8;
  border-radius: var(--radius-md);
  padding: 20px;
  width: 197px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.reviews-score__value {
  font-size: 20px;
  font-weight: var(--fw-medium);
}

.reviews-score__stars {
  display: flex;
  gap: 4px;
}

.reviews-score__stars svg {
  width: 24px;
  height: 24px;
  color: var(--color-star);
}

.reviews-score__count {
  font-size: 16px;
  color: var(--color-text-80);
}

.reviews-breakdown {
  background: var(--color-grey-input);
  border-radius: var(--radius-md);
  padding: 20px;
  width: 304px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  justify-content: center;
}

.reviews-breakdown__row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.reviews-breakdown__num {
  width: 12px;
  font-size: 16px;
  font-weight: var(--fw-medium);
}

.reviews-breakdown__row svg {
  width: 20px;
  height: 20px;
  color: var(--color-star);
  flex-shrink: 0;
}

.reviews-breakdown__bar {
  flex: 1;
  height: 6px;
  border-radius: 20px;
  background: var(--color-grey-btn);
  overflow: hidden;
}

.reviews-breakdown__bar span {
  display: block;
  height: 100%;
  border-radius: 20px;
  background: #ffbb2a;
}

.reviews-breakdown__count {
  width: 20px;
  text-align: right;
  font-size: 16px;
  font-weight: var(--fw-medium);
  color: var(--color-text-80);
}

.review-form {
  flex: 1;
  min-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.review-form__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.review-form__head-title {
  font-size: 20px;
  font-weight: var(--fw-medium);
}

.review-form__stars {
  display: flex;
  gap: 4px;
}

.review-form__stars svg {
  width: 28px;
  height: 28px;
  color: var(--color-grey-btn);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.review-form__stars svg:hover,
.review-form__stars svg.is-filled {
  color: var(--color-star);
}

.review-form textarea {
  background: var(--color-grey-input);
  border-radius: var(--radius-md);
  padding: 12px;
  min-height: 110px;
  width: 100%;
  font-family: var(--font-main);
  font-size: 14px;
  color: var(--color-text);
  resize: vertical;
}

.review-form textarea::placeholder {
  color: var(--color-text-60);
}

.review-form__submit {
  width: 100%;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-purple);
  color: var(--color-white);
  font-weight: var(--fw-medium);
  font-size: 16px;
}

.review-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.review-item {
  background: var(--color-grey-input);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.review-item__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.review-item__user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-item__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50px;
  overflow: hidden;
  flex-shrink: 0;
}

.review-item__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.review-item__meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.review-item__name {
  font-size: 20px;
  font-weight: var(--fw-medium);
}

.review-item__stars {
  display: flex;
  gap: 2px;
}

.review-item__stars svg {
  width: 20px;
  height: 20px;
  color: var(--color-star);
}

.review-item__quote {
  width: 24px;
  height: 24px;
  color: var(--color-text-40);
  flex-shrink: 0;
}

.review-item__text {
  font-size: 16px;
  color: var(--color-text-80);
  line-height: 1.5;
}

.review-item__date {
  font-size: 12px;
  color: var(--color-text-60);
}

.reviews__more {
  margin: 0 auto;
}

/* ---- FAQ tab --------------------------------------------------------------- */
.faq {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.faq__title {
  font-size: 28px;
  font-weight: var(--fw-medium);
}

/* ---- Related products ------------------------------------------------------- */
.related {
  background: var(--color-pink-bg);
  width: 100%;
}

.related__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 36px;
}

.related__title {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1100px) {
  .course-hero {
    grid-template-columns: 1fr;
  }

  .course-hero__image {
    aspect-ratio: 16 / 9;
  }
}

@media (max-width: 900px) {
  .course-layout {
    flex-direction: column;
  }

  .course-sidebar {
    width: 100%;
  }

  .author-block {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .author-block__name-row {
    justify-content: center;
  }

  .reviews-top {
    justify-content: center;
  }

  .reviews-score,
  .reviews-breakdown {
    width: 100%;
    max-width: 400px;
  }

  .review-form {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .tabs {
    gap: 28px;
  }

    .course-hero__actions {
        flex-direction: column;
    }
    .course-hero__action {
        flex: none;          /* главное: убираем flex-basis: 0% */
        width: 100%;
        min-height: 44px;    /* страховка */
    }

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

  .accordion-item__title {
    font-size: 18px;
  }

  .review-item__head {
    flex-direction: column;
  }

  .review-item__quote {
    align-self: flex-end;
    margin-top: -32px;
  }
}