body {
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  background-color: var(--color-default-white);
}

.all-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
  padding-bottom: 70px;
}

/* 상단 배너 */
.banner-bg {
  width: 100%;
  background-image: url("../assets/purple_banner/sub_top_banner_1025.png");
  background-size: cover;
}

.banner-container {
  width: 1080px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 60px 0;
  margin: 0 auto;
}

.banner-top-introduce {
  color: var(--color-default-white);
}

.banner-top-title {
  font: var(--font-head-07);
  letter-spacing: var(--letter-spacing-head-07);
}

.banner-top-desc {
  font: var(--font-body-02);
  letter-spacing: var(--letter-spacing-body-02);
}

/* 강의 종류 탭 */
.tabs-container {
  display: flex;
}

/* 768px ~ 최대일 때 탭 메뉴 */
.tabs-container-big {
  width: 65%;
  margin: 0 auto;
  padding: 40px 0;
}

.tabs-menu-big {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px;
}

.tab-big {
  font: var(--font-body-02);
  letter-spacing: var(--letter-spacing-body-02);
  color: var(--color-icon-dark);
  background-color: var(--color-border-100);
  height: 40px;
  border-radius: 4px;
}

.active {
  color: var(--color-default-white);
  background-color: var(--color-purple-primary-default);
}

.tab-big > a {
  display: block;
  padding: 8px 20px;
}

/* 360px ~ 767px일 때 셀렉트 메뉴 */
.tabs-container-small {
  width: 90%;
  display: none;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  margin: 0 auto;
  padding: 30px 0;
  font: var(--font-body-04);
  letter-spacing: var(--letter-spacing-body-04);
  background-color: var(--color-default-white);
}

.tabs-container-small::before {
  content: "";
  position: absolute;
  top: 0;
  left: -30px;
  width: 140%;
  height: 100%;
  background-color: var(--color-default-white);
}

.select-box {
  width: 132px;
  align-self: flex-end;
  border: 1px solid var(--color-border-100);
  border-radius: 4px;
  padding: 3px 20px;
  cursor: pointer;
  background-color: var(--color-default-white);
  z-index: 20;
}

.select-box i {
  color: var(--color-icon-light);
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  right: 20px;
}

.dropdown-options {
  width: 152px;
  position: absolute;
  top: 62px;
  right: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background-color: var(--color-default-white);
  border: 1px solid var(--color-border-200);
  border-radius: 4px;
  padding: 10px;
}

.dropdown-option {
  padding: 0 10px;
  cursor: pointer;
}

.dropdown-option:hover {
  color: var(--color-default-white);
  background-color: var(--color-purple-primary-default);
  border-radius: 4px;
}

.dropdown-option.selected {
  color: var(--color-default-white);
  background-color: var(--color-purple-primary-default);
  border-radius: 4px;
}

.dropdown-options.hidden {
  display: none;
}

/* 강의 카드 */
.card-container {
  width: 1080px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  justify-content: center;
  margin: 0 auto;
  gap: 24px;
}

.class-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 0px solid var(--color-border-100);
  border-radius: 4px;
  cursor: pointer;
}

.class-card:hover {
  .class-thumbnail {
    transform: scale(1.04);
    z-index: 1;
  }

  .class-name {
    color: var(--color-purple-primary-default);
  }
}

.class-thumbnail {
  width: 100%;
  height: 230px;
  transition: all 0.2s linear;
  z-index: 1;
}

.class-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px;
}

.class-name {
  font: var(--font-head-01);
  letter-spacing: var(--letter-spacing-head-01);
  height: 64px;
}

.class-count {
  font: var(--font-body-04);
  letter-spacing: var(--letter-spacing-body-04);
  color: var(--color-text-input);
}

.course-tag-container {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.class-course {
  font: var(--font-body-06);
  letter-spacing: var(--letter-spacing-body-06);
  background-color: var(--color-bg-able);
  color: var(--color-icon-dark);
  width: fit-content;
  padding: 2px 4px;
  border-radius: 2px;
}

.best-tag {
  font: var(--font-body-05);
  letter-spacing: var(--letter-spacing-body-05);
  background-color: var(--color-bg-yellow);
  padding: 2px 4px;
  border-radius: 2px;
}

/* 페이지네이션 */
.pagination-container {
  width: 65%;
  padding: 10px;
  margin: 0 auto;
}

.pagination-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
}

.page-before {
  padding: 6px 10px;
}

.page-after {
  transform: rotate(180deg);
  padding: 6px 10px;
}

.page-btn-container {
  display: flex;
  gap: 4px;
}

.btn-page {
  font: var(--font-body-04);
  letter-spacing: var(--letter-spacing-body-normal-04);
  color: var(--color-text-light-03);
  width: 30px;
  height: 28px;
  padding: 2px 4px;
}

.current-page {
  color: var(--color-text-01);
  border: 1px solid var(--color-border-linestrock);
  border-radius: 4px;
}

@media screen and (min-width: 768px) and (max-width: 1024px) {
  /* 상단 배너 */
  .banner-bg {
    background-image: url("../assets/purple_banner/sub_top_banner_768.png");
  }

  .banner-container {
    width: 90%;
  }

  /* 강의 종류 탭 */
  .tabs-container-big {
    width: 90%;
  }

  .tabs-menu-big {
    justify-content: flex-start;
  }

  /* 강의 카드 */
  .card-container {
    width: 90%;
    grid-template-columns: repeat(2, 1fr);
  }

  .class-thumbnail {
    height: fit-content;
  }
}

@media screen and (min-width: 480px) and (max-width: 767px) {
  /* 상단 배너 */
  .banner-bg {
    background-image: url("../assets/purple_banner/sub_top_banner_768.png");
  }

  .banner-container {
    width: 90%;
  }

  /* 강의 종류 탭 */
  .tabs-container {
    position: sticky;
    top: 0;
    z-index: 20;
  }

  .tabs-container-big {
    display: none;
  }

  .tabs-container-small {
    display: flex;
    z-index: 20;
  }

  /* 강의 카드 */
  .card-container {
    width: 90%;
    grid-template-columns: repeat(1, 1fr);
  }

  .class-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 24px;
    border: 0px solid var(--color-border-100);
    border-radius: 4px;
    cursor: pointer;
  }

  .class-thumbnail {
    width: 100%;
    height: fit-content;
  }

  .class-name {
    height: fit-content;
  }
}

@media screen and (max-width: 479px) {
  /* 상단 배너 */
  .banner-bg {
    background-image: url("../assets/purple_banner/sub_top_banner_768.png");
  }

  .banner-container {
    width: 90%;
  }

  .banner-container > img {
    display: none;
  }

  .banner-top-title {
    font: var(--font-head-01);
    letter-spacing: var(--letter-spacing-head-01);
  }

  .banner-top-desc {
    font: var(--font-body-04);
    letter-spacing: var(--letter-spacing-body-04);
  }

  /* 강의 종류 탭 */
  .tabs-container {
    position: sticky;
    top: 0;
    z-index: 20;
  }

  .tabs-container-big {
    display: none;
  }

  .tabs-container-small {
    display: flex;
    z-index: 20;
  }

  /* 강의 카드 */
  .card-container {
    width: 90%;
    grid-template-columns: repeat(1, 1fr);
    gap: 10px;
  }

  .class-card {
    width: 100%;
  }

  .class-thumbnail {
    width: 100%;
    height: fit-content;
    margin: 0 auto;
  }

  .class-name {
    font: var(--font-body-03-bold);
    letter-spacing: var(--font-body-03-bold);
    height: fit-content;
  }
}