/* --- Header --- */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  padding: 0;
  width: 100%;
  background-color: #fff;
  box-sizing: border-box;
  z-index: 45;
}

.header--fixed {
  position: fixed;
  top: 0;
  left: 0;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  height: var(--header-height);
}

.header__logo-wrapper {
  position: relative;
  display: inline-block;
  overflow: hidden; 
}

.header__logo-wrapper::after {
  content: "";
  position: absolute;
  inset: 0;
  background-color: rgba(255, 255, 255, 0);
  transition: background-color 0.3s ease;
  pointer-events: none; 
}

.header__logo-wrapper:hover::after {
  background-color: rgba(255, 255, 255, 0.3);
}

.header__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  padding-left: 1.5rem;
}

.header__logo-img {
  max-width: 200px;
  height: auto;
}

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

.header__link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--text-color);
  position: relative;
  padding: 0;
  transition: color 0.3s ease;
}

.header__link-text {
  margin: 0 10px;
  position: relative;
}



.header__link-text:hover {
  color: var(--main-color);
  font-weight: bold;
}

.header__link-text::after {
  content: "";
  position: absolute;
  bottom: 3px;
  left: 50%;
  width: 0;
  height: 1px;
  background-color: var(--main-color);
  transition: width 0.3s ease, left 0.3s ease;
}

.header__link:hover .header__link-text::after {
  width: 100%;
  left: 0;
}

.header__link-slash {
  display: inline-block;
}

.header__link--contact {
  color: #fff;
  background-color: var(--main-color);
  padding: 0 1rem;
  margin-left: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  height: var(--header-height);
  text-decoration: none;
  white-space: nowrap;
  border-radius: 0;
  box-sizing: border-box;
  transition: background-color 0.3s ease;
}

.header__link--contact:hover {
  background: color-mix(in srgb, var(--main-color) 70%, white);
}

/* --- Hamburger --- */
.header__hamburger {
  width: 24px;
  height: 21px;
  position: absolute;
  right: 16px;
  top: 27px;
  cursor: pointer;
  user-select: none;
  display: none;
}

.hamburger-menu__line {
  background-color: var(--text-color);
  height: 2px;
  width: 100%;
  position: absolute;
  transition: all 0.3s;
}

.hamburger-menu__line:nth-of-type(1) { top: 0; }
.hamburger-menu__line:nth-of-type(2) { top: 50%; transform: translateY(-50%); }
.hamburger-menu__line:nth-of-type(3) { bottom: 0; }

.hamburger-menu.active .hamburger-menu__line:nth-of-type(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.hamburger-menu.active .hamburger-menu__line:nth-of-type(2) {
  display: none;
}

.hamburger-menu.active .hamburger-menu__line:nth-of-type(3) {
  top: 50%;
  transform: translateY(-50%) rotate(-45deg);
}



/* --- Mobile Nav --- */
.nav-menu {
    display: none;
    gap: 1.5rem;
    flex-direction: column;
    position: absolute;
    top: var(--header-height);
    left: 0;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 2rem 2rem 2rem;
    width: 100%;
    background-color: var(--main-color);
    opacity: 0;
    overflow-y: auto;
    overflow-x: hidden;
    box-sizing: border-box;
    overflow-y: auto;
    overflow-x: hidden;
    box-sizing: border-box;
    z-index: 20;
}

.nav-menu.active {
    display: flex;
    animation: slideInFromLeft 0.3s forwards;
}

@keyframes slideInFromLeft {
    0% {
        left: -100%;
        opacity: 0;
    }
    100% {
        left: 0;
        opacity: 1;
    }
}


.nav-menu a {
    width: 100%;
    position: relative;
    display: block;
    text-decoration: none;
    color: #fff;
    padding-left: 1rem;
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.3s ease;
    pointer-events: none;
}
.nav-menu a::after {
    content: ">";
    position: absolute;
    right: 1rem; 
    top: 50%;
    transform: translateY(-50%);
    color: #fff;
    font-size: 0.9em;
}
.nav-menu a::before {
    content: "｜";
    position: absolute;
    left: 0px; 
    top: 50%;
    transform: translateY(-50%);
    color: #fff;
    font-size: 0.9em;
}
.nav-menu a.show {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}


/* Overlay */
.header__overlay {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.6);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease;
  z-index: 10;
}

.header__overlay.active {
  opacity: 1;
  visibility: visible;
}

/* --- Media Queries --- */
@media (max-width: 768px) {
  .header__nav { display: none; }
  .header__hamburger { display: block; }
  .header__nav {
    display: none;
  }
  .header__logo-img {
      height: 40px;
  }
}


@media (min-width: 769px) {
  .hamburger-menu {
    display: none;
  }
}











/*--------------------------------
            HERO画像
----------------------------------*/
.hero {
  position: relative;
  width: 100%;
  aspect-ratio: 16/7;
  overflow: hidden;
  margin-top: var(--header-height);
}

.hero__image {
  display: block;
  width: 100%;
  height: auto;
}

.hero__slide {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.hero__slide--active {
  opacity: 1;
  z-index: 0;
}

.hero__caption {
  position: absolute;
  top: 70%;
  left: 10%;
  transform: translateY(-50%);
  background: #fff;
  padding: 0.3rem 2rem;
  font-size: 2rem;
  font-weight: bold;
  border-bottom: 4px solid var(--main-color);
  box-sizing: border-box;
  z-index: 2;
}

.hero__caption-text {
  margin: 0;
}

.hero__fg-overlay {
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
}

.hero__fg-wrapper {
  position: relative;
  width: 100%;
}

.hero__fg-path {
  width: 100%; 
  height: auto;
}
.hero__fg-first-svg {
  display: block;
  color: var(--main-color);
}
.hero__fg-second-svg {
  position: absolute;
  bottom: -3px;
  left: 0;
}


/* ナビボタン */
.hero__prev,
.hero__next {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 10vw;
  background-color: transparent;
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  z-index: 3;
  height: auto;
}

.hero__prev { left: 0; }
.hero__next { right: 0; }

.hero__prev span,
.hero__next span {
  font-size: 2.5rem;
  color: rgba(0,0,0,0.3);
  pointer-events: none;
  transition: color 0.3s ease;
}

.hero__prev:hover span,
.hero__next:hover span {
  color: rgba(0,0,0,0.7);
}

/* ドット */
.hero__dots {
  position: absolute;
  top: 50%;
  right: 2vw;
  display: flex;
  gap: 1vw;
  width: 20vw;
  z-index: 4;
  flex-direction: row;
}

.hero__dots button {
  width: 100%;
  height: auto;
  aspect-ratio: 5/1;
  border: none;
  cursor: pointer;
  outline: solid 1px white;
  transition: background 0.3s ease;
}

.hero__dot--active {
  background-color: color-mix(in srgb, var(--main-color) 40%, #fff);
}

.hero__dots button:hover {
  background: var(--main-color);
  outline: solid 3px white;
}

/* レスポンシブ */
@media (max-width: 768px) {
  .hero {
    aspect-ratio: 16/11;
  }

  .hero__caption {
    font-size: 1.2rem;
    position: absolute;
    text-align: center;
    top: 70%;
    left: 50%;
    transform: translate(-50%, -50%);
    min-width: 300px;
    padding: 0.3rem 1rem;
  }
}