.header {
  position: fixed;
  z-index: 10001;
  background-color: var(--base-color);
  height: 7rem;
  padding: 1.25rem 0;
  width: 100%;
}

.header__container {
  display: flex;
  justify-content: space-between;
  width: 90%;
  padding: 0;
  margin: 0 auto;
  align-items: center;
}

.header__title {
  display: flex;
  gap: 3.2rem;
}

.header__subtitle {
  font-size: 1.2rem;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}


/* 検索エリア */
.header__search {
  width: 35.6rem;
}

.header__search-form {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.header__search-input {
  width: 100%;
  padding: 1.4rem 2.4rem;
  border-radius: 50px;
  font-size: 1.4rem;
  color: var(--black);
  background-color: var(--white);
  transition: border-color 0.3s ease;
}

.header__search-input::placeholder {
  color: var(--gray);
}

.header__search-submit {
  position: absolute;
  right: 0.8rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--black);
  transition: color 0.3s ease;
}

.header__search-icon {
  width: 2rem;
  height: 2rem;
  stroke: currentColor;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .header__search {
    margin-top: 1.6rem;
    margin-bottom: 1.6rem;
  }

  .header__search-form {
    max-width: 100%;
  }

  .header__search-input {
    padding: 1rem 4.5rem 1rem 1.4rem;
    font-size: var(--small);
  }

  .header__search-icon {
    width: 1.8rem;
    height: 1.8rem;
  }
}

/* ハンバーガーボタン */
.header__humburger {
  cursor: pointer;

}

.header__humburger-btn {
  position: relative;
  width: 3rem;
  height: 1.8rem;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.5rem;
  align-items: end;
}

.header__humburger-line {
  display: block;
  width: 100%;
  height: 0.1rem;
  background-color: var(--black);
  transition: all 0.3s ease;
  border-radius: 0.1rem;
}

.header__humburger-line:nth-child(2) {
  width: 90%;
}

.header__humburger-line:nth-child(3) {
  width: 80%;
}

.header__humburger-btn.is-active .header__humburger-line:nth-child(1) {
  transform: translateY(0.6rem) rotate(45deg);
  width: 100%;
}

.header__humburger-btn.is-active .header__humburger-line:nth-child(2) {
  opacity: 0;
}

.header__humburger-btn.is-active .header__humburger-line:nth-child(3) {
  transform: translateY(-.6rem) rotate(-45deg);
  width: 100%;
}

/* ハンバーガーメニュー */
.header__humburger-menu {
  background-color: var(--sub-base-color);
  position: fixed;
  bottom: 0;
  right: 0;
  width: 60%;
  height: calc(100vh - 7rem);
  background-color: var(--white);
  z-index: 9999;
  transform: translateX(100%);
  transition: transform 0.3s ease-in-out;
  overflow-y: auto;
  box-shadow: -2px 0 1rem rgba(0, 0, 0, 0.1);
  padding: 5rem 8rem;
}

/* ハンバーガーメニュー */
.header__humburger-menu::before {
  content: "";
  display: block;
  height: 100%;
  width: 1.2rem;
  background-image: url(../img/common/menu.svg);
  background-repeat: repeat-y;
}

.header__humburger-menu.is-active {
  transform: translateX(0);
}

.header__humburger-menu-inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.header__humburger-item-title {
  font-size: 1.4rem;
  font-weight: 600;
  border-bottom: 1px dotted var(--black);
  padding-bottom: 1.2rem;
}

.header__humburger-button-group {
  display: flex;
  flex-wrap: wrap;
  margin-top: 2.4rem;
  gap: 1.6rem;
}

.header__humburger-button {
  background: var(--white);
  display: inline-block;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--main-accent-color);
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
}

.header__humburger-button:hover {
  background-color: var(--main-accent-color);
  color: var(--white);
}

.header__humburger-item--links {
  margin-top: 2.4rem;
  background-color: var(--white);
}

.header__humburger-external-links {
  display: flex;
  gap: 2rem;
  justify-content: flex-start;
}

.header__humburger-external-link {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.2rem 2rem;
  background-color: var(--white);
  border: 1px solid var(--main-accent-color);
  border-radius: 0.4rem;
  font-size: var(--regular);
  color: var(--black);
  text-decoration: none;
  transition: all 0.3s ease;
}

.header__humburger-external-link:hover {
  background-color: var(--main-accent-color);
  color: var(--white);
  border-color: var(--main-accent-color);
}

.header__humburger-external-icon {
  width: 2.4rem;
  height: 2.4rem;
  stroke: currentColor;
}

/* オーバーレイ */
.header__humburger-overlay {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: calc(100vh - 7rem);
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.header__humburger-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

/* SP対応（上からスライド） */
@media (max-width: 768px) {
  .header__humburger-menu {
    top: 0;
    right: 0;
    left: 0;
    max-width: 100%;
    height: auto;
    max-height: 90vh;
    transform: translateY(-100%);
    border-radius: 0 0 0.8rem 0.8rem;
  }

  .header__humburger-menu.is-active {
    transform: translateY(0);
  }

  .header__humburger-menu-inner {
    padding: 6rem 2.4rem 4rem;
    gap: 3.2rem;
  }

  .header__humburger-item-title {
    font-size: var(--large);
    padding-bottom: 1rem;
    margin-bottom: 0.6rem;
  }

  .header__humburger-button {
    padding: 0.8rem 1.6rem;
    font-size: var(--small);
  }

  .header__humburger-button-group {
    gap: 1rem;
  }

  .header__humburger-external-links {
    flex-direction: column;
    gap: 1.2rem;
  }

  .header__humburger-external-link {
    padding: 1rem 1.6rem;
    font-size: var(--small);
  }

  .header__humburger-external-icon {
    width: 2rem;
    height: 2rem;
  }
}

/* FV Section */
.fv {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 0;
}

.fv__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.fv__left {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.fv__title {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  font-size: 4.8rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--black);
}

.fv__title-line {
  display: block;
  position: relative;
}

.fv__title-line--decorated::after {
  content: '';
  position: absolute;
  bottom: -0.4rem;
  left: 0;
  width: 100%;
  height: 0.3rem;
  background: linear-gradient(to right, var(--main-accent-color), transparent);
  border-radius: 0.2rem;
  opacity: 0.3;
}

.fv__today {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

.fv__today-line {
  height: 0.1rem;
  background: linear-gradient(to right, transparent, var(--main-accent-color), transparent);
  opacity: 0.3;
}

.fv__today-content {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  padding: 0 2rem;
}

.fv__today-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.fv__today-label {
  font-size: var(--regular);
  color: var(--black);
  font-weight: 500;
}

.fv__today-info {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  font-size: var(--regular);
  color: var(--black);
}

.fv__today-weather {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.fv__today-weather-icon {
  width: 4rem;
  height: 4rem;
  object-fit: contain;
}

.fv__today-temp {
  color: var(--main-accent-color);
  font-weight: 500;
}

.fv__today-date {
  font-weight: 500;
}

.fv__scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  margin-top: auto;
  font-size: var(--small);
  color: var(--black);
  cursor: pointer;
}

.fv__scroll-text {
  text-transform: lowercase;
  letter-spacing: 0.1em;
}

.fv__scroll-arrow {
  width: 1.6rem;
  height: 1.6rem;
  animation: scroll-bounce 2s infinite;
}

@keyframes scroll-bounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(0.8rem);
  }
}

.fv__right {
  position: relative;
}

.fv__slider {
  position: relative;
  width: 100%;
}

.fv__slider-track {
  display: flex;
  overflow: hidden;
  position: relative;
}

.fv__slider-item {
  min-width: 100%;
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateX(100%);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fv__slider-item.active {
  opacity: 1;
  transform: translateX(0);
}

.fv__slider-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  margin-bottom: 2rem;
  border-radius: 0.4rem;
}

.fv__slider-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.fv__slider-image:hover img {
  transform: scale(1.05);
}

.fv__slider-content {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.fv__slider-date {
  font-size: var(--small);
  color: var(--dark-gray);
}

.fv__slider-category {
  display: inline-block;
  padding: 0.6rem 1.6rem;
  background-color: var(--white);
  border: 1px solid var(--main-accent-color);
  border-radius: 2rem;
  font-size: var(--small);
  color: var(--black);
  text-decoration: none;
  width: fit-content;
  transition: all 0.3s ease;
}

.fv__slider-category:hover {
  background-color: var(--main-accent-color);
  color: var(--white);
  border-color: var(--main-accent-color);
}

.fv__slider-title {
  font-size: var(--x-large);
  font-weight: bold;
  line-height: 1.6;
  color: var(--black);
}

.fv__slider-title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

.fv__slider-title a:hover {
  color: var(--main-accent-color);
}

.fv__slider-author {
  font-size: var(--regular);
  color: var(--dark-gray);
}

.fv__slider-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.fv__slider-tag {
  font-size: var(--small);
  color: var(--main-accent-color);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.fv__slider-tag:hover {
  opacity: 0.7;
}

.fv__slider-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 4.8rem;
  height: 4.8rem;
  border-radius: 50%;
  border: 1px solid var(--main-accent-color);
  background-color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.3s ease;
  color: var(--black);
}

.fv__slider-nav:hover {
  background-color: var(--main-accent-color);
  color: var(--white);
  border-color: var(--main-accent-color);
}

.fv__slider-nav--prev {
  left: -2.4rem;
}

.fv__slider-nav--next {
  right: -2.4rem;
}

.fv__slider-nav svg {
  width: 2.4rem;
  height: 2.4rem;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .fv {
    min-height: auto;
    padding: 6rem 0;
  }

  .fv__container {
    grid-template-columns: 1fr;
    gap: 4rem;
  }

  .fv__title {
    font-size: 3.2rem;
  }

  .fv__slider-nav {
    width: 4rem;
    height: 4rem;
  }

  .fv__slider-nav--prev {
    left: -2rem;
  }

  .fv__slider-nav--next {
    right: -2rem;
  }

  .fv__slider-nav svg {
    width: 2rem;
    height: 2rem;
  }
}