* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "IBM Plex Sans JP", sans-serif;
}

header {
  width: 100%;
  height: 80px;
  background-color: #b4a19c;
}
/* ロゴ */
.logo a {
  font-size: 28px;
  font-weight: bold;
  color: #fff;
  text-decoration: none;
  margin-right: 20px;
}

nav a {
  text-decoration: none;
  color: rgb(255, 255, 255);
  font-weight: 500;
  margin-left: 20px;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 40px;
}

body.index-page,
html.index-page {
  height: 100%;
  margin: 0;
  padding: 0;
}

.index-page main {
  display: block;
  padding: 0;
}

.slider {
  position: relative;
  height: 100vh;
  width: 100%;
  background-color: #3d3d50;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}

.slide-title {
  font-size: 60px;
  color: rgb(80, 237, 214);
  font-weight: bold;
  letter-spacing: 4px;
  text-shadow: 2px 2px 10px rgba(0,0,0,0.5);
}

.slide.show .slide-content {
  opacity: 1;
  transform: translateY(0);
}

.nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 50px;
  background: none;
  border: none;
  color: rgb(80, 237, 214);
  cursor: pointer;
  z-index: 10;
}

.menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 22px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.menu-btn span {
  display: block;
  height: 3px;
  background: #000;
  border-radius: 2px;
}

/* ナビ非表示 */
.nav-menu {
  display: flex;
  flex-direction: row;
  position: static;
  background: none;
  width: auto;
  padding: 0;
  gap: 0;
}

/* モバイル用ナビメニュー */
@media (max-width: 768px){
}
  .nav-menu {
    display: none;
    position: fixed;
    top: 80px;
    right: 0;
    background: white;
    width: 100%;
    padding: 20px;
    flex-direction: column;
    gap: 32px;
    z-index: 1000;
  }

/* 開いたとき */
.nav-menu.active {
  display: flex;
}

.prev {
  left: 20px;
}
.next {
  right: 20px;
}

/* ABOUTページ */
.about-main, .contact-main {
  padding: 60px 20px;
  text-align: center;
}

.about-main p {
  text-align: left;
}

.about-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 40px;
  gap: 50px;
}

.introduction {
  flex: 1;
  min-width: 250px;
  font-size: 20px;
}

.profile-image {
  flex: 1;
  min-width: 200px;
  font-size: 20px;
  border-radius: 50%;
  width: 200px;
  height: 200px;
  display: block;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  margin: 0 auto;
}

/* WORKSページ */
.works-main h1 {
  text-align: center;
  margin-bottom: 40px;
  font-size: 2em;
  padding: 60px 20px;
}

.works-gallery {
  max-width: 800px;
  margin: 0 auto;
}

.works-gallery img {
  width: 100%;
  height: auto;
  border: 1px solid #000;
  object-fit: cover;
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); /* 可変正方形 */
  gap: 20px;
}

.work-item {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1; 
  overflow: hidden;
  background-color: #f0f0f0;
  border-radius: 10px;
  box-shadow: 0 0 8px rgba(0,0,0,0.1);
}

.work-item img {
  width: 100%;
  height: 100%;
  object-fit: cover; 
  display: block;
}

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0,0,0,0.8);
  justify-content: center;
  align-items: center;
}

.modal img {
  max-width: 90%;
  max-height: 90%;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
  cursor: zoom-out;
}

/* CONTACTページ */
.contact-content {
  margin-top: 40px;
  font-size: 20px;
  border: 1px solid #000;
  padding: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.profile-image img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
}

.contact-content img {
  border: 1px solid #ccc;
  border-radius: 8px;
}

/*レスポンシブデザイン*/
/*共通*/
body {
  margin: 0;
  font-family: "IBM Plex Sans JP", sans-serif;
}

main {
  display: grid;
  gap: 20px;
  padding: 20px;
}

.container {
  display: grid;
  gap: 20px;
  padding: 20px;
}

/* スマホ用 */
@media (max-width: 768px) {
  .menu-btn {
    display: flex;
  }

  .nav-menu {
    display: none;
    position: fixed;
    top: 80px;
    right: 0;
    background: white;
    flex-direction: column;
    width: 100%;
    padding: 20px;
    gap: 32px;
    z-index: 1000;
  }

  .nav-menu a {
    color: #333;
  }

  .nav-menu.active {
    display: flex;
  }
}


/*タブレット用*/
@media all and (min-width: 769px) and (max-width: 1024px) {
  main {
    grid-template-columns: 1fr 1fr;
  }

  .container {
    grid-template-columns: 1fr 1fr;
  }

  .slider {
    height: 400px;
  }

  h1 {
    font-size: 28px;
  }

  p {
    font-size: 16px;
  }
}


/* コンピュータ表示 */
@media (min-width: 1025px) {
  .menu-btn {
    display: none;
  }

  .nav-menu {
    display: flex !important;
    position: static;
    flex-direction: row;
    background: none;
    height: auto;
    width: auto;
    gap: 40px;
  }
}