body {
  margin: 0;
  font-family: 'Helvetica Neue', sans-serif;
  background: white;
  color: #333;
}

html, body {
  overflow-x: hidden;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  z-index: 1000;
  background-color: rgba(124, 124, 124, 0.6);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

nav {
  margin-left: 0;
  padding-right: 3rem;
  width: fit-content;
}

nav ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

nav a {
  text-decoration: none;
  color: #333;
  font-weight: bold;
}

/* トグルボタン（SVG） */
.toggle-btn {
  display: none; /* PCでは非表示 */
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  cursor: pointer;
  background: transparent;
  border: none;
  color: #333; /* currentColorでSVGに反映 */
  z-index: 1000;
}

/* アイコンの切り替え */
.icon .menu-icon { display: block; }
.icon .close-icon { display: none; }

.toggle-btn[aria-expanded="true"] .menu-icon { display: none; }
.toggle-btn[aria-expanded="true"] .close-icon { display: block; }

/* スマホ用ナビ */
@media (max-width: 768px) {
  header {
    padding: 1.2rem 2rem;
  }
  nav {
    position: absolute;
    top: 100%;
    right: -200px;
    background: rgba(124,124,124,0.9);
    width: 200px;
    transition: right 0.3s ease;
  }

  nav.open {
    right: 0; /* 開いた状態 */
  }

  nav ul {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }

  /* ハンバーガーの代わりにトグルボタンを表示 */
  .toggle-btn {
    display: flex;
    position: absolute;
    top: 0.1rem;
    right: 5rem;
  }
}

.hero {
  position: relative;
  width: 100%;
  height: auto;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.edition-block {
  display: flex;
  flex-direction: column;
  font-size: 4vw;
  font-weight: bold;
  margin-top: 5vh;
  margin-left: 10vw;
}

.title-row {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.name-block {
  display: flex;
  flex-direction: column;
  font-size: clamp(2rem, 8vw, 10rem);
  font-weight: bold;
  line-height: 1;
  margin-left: 10vw;
}

.vol-block {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  font-size: 6rem;
  margin-left: 20vw;
}

.portfolio-label {
  display: flex;
  right: 2vw;
  font-size: 5rem; /* 大きくする */
  font-weight: bold;
  letter-spacing: 3px;
  margin-left: 50vw; /* 右に寄せるための余白 */
  margin-bottom: 10vw;
}

.cat-graphic {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('../images/top/top.png') no-repeat center center;
  background-size: cover;
  opacity: 0.1;
  pointer-events: none;
  z-index: 0;
}

h1 {
  position: relative;
  top: -50px; 
  font-size: 10px; 
  margin: 0;
  color: #999;
  text-align: center;
  z-index: 2; 
}

.title-block h2 {
  font-size: 2rem;
  margin: 0.5rem 0;
}

.title-block p {
  font-size: 1.5rem;
  letter-spacing: 2px;
}

/* 左からスライドイン */
.slide-left {
  opacity: 0;
  transform: translateX(-200px);
  animation: slideLeft 2s ease-out forwards;
}

@keyframes slideLeft {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 右からスライドイン */
.slide-right {
  opacity: 0;
  transform: translateX(200px);
  animation: slideRight 2s ease-out forwards;
}

@keyframes slideRight {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.about {
  padding: 6rem 2rem;
  background-color: #C6C6C6;
  font-weight: bold;
}

.about-content {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
}

.about-text {
  flex: 1;
  min-width: 300px;
  font-size: 1.2rem;
  line-height: 1.8;
  color: #1CABB0;
  margin-left: 5vw;
}

.about-text h2 {
  font-size: 2rem;
  color: #1CABB0;
  margin-bottom: 2rem;
}

.portfolio-intro {
  color: #000; /* 黒字 */
}

/* リンクは通常黒字、ホバー時にセージ色 */
.btn {
  display: inline-block;
  padding: 5px 5px;
  margin: 5px 0;
  background-color: #1CABB0; 
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  position: relative;
  z-index: 100;
}
.btn:hover {
  background-color: #5d5d5d; /* ホバー時の色 */
}

.portfolio-intro a:hover {
  color: #1CABB0; /* ホバー時にセージ色 */
  text-decoration: underline; /* ホバー時に下線を出すと親切 */
}

.about-image {
  position: sticky;
  top: 50px; /* スクロールしてもこの位置に留まる */
}

.about-image img {
  max-width: 40vw;
  height: auto;
  border-radius: 8px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,1), rgba(0,0,0,0));
  mask-repeat: no-repeat;
  mask-size: 100% 200%;
  margin-right: 5vw;
}

.works {
  padding: 6rem 2rem;
  background-color: #C2BEB9;
  color: #1CABB0;
}

.works h2 {
  font-size: 2.5rem;
  color: 1CABB0;
  margin-bottom: 3rem;
  text-align: center;
}

.works-text{
  text-align: center;
}

.work-item {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 2rem;
  background-color: #f5f5f5;
  border-radius: 8px;
  max-width: 1000px;
  margin: 20px auto;
}

.work-thumb {
  width: 300px;
  height: auto;
  border-radius: 6px;
  object-fit: cover;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.work-thumb:hover {
  transform: scale(1.05); /* ふわっと拡大 */
  box-shadow: 0 6px 12px rgba(0,0,0,0.2); /* 影を強調 */
}

.work-text {
  flex: 1;
  font-size: 1.1rem;
  line-height: 1.8;
  color: #1CABB0;
}

.work-item h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #1CABB0;
}

.work-item p {
  font-size: 1.1rem;
  line-height: 1.8;
}

.work-item {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.6s ease-out;
}

.work-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.work-item.hidden {
  opacity: 0;
  transform: translateY(40px);
}

.skills {
  padding: 6rem 2rem;
  background-color: #fff;
  max-width: 1000px;
  margin: 0 auto;
}

.skills h2 {
  font-size: 2.5rem;
  color: #1CABB0;
  text-align: center;
  margin-bottom: 1rem;
}

.subtitle {
  text-align: center;
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 3rem;
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background-color: #f5f5f5;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
}

.skill-item:hover {
  transform: scale(1.02);
}

.skill-item img {
  width: 60px;
  height: 60px;
  object-fit: contain;
}

.skill-item h3 {
  margin: 0;
  font-size: 1.4rem;
  color: #333;
}

.skill-item p {
  margin: 0.5rem 0 0;
  font-size: 1rem;
  color: #555;
}

.contact {
  background-color: #C6C6C6;
  padding: 6rem 0;
}
.photo-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}

.contact-photo {
  width: 30vw;
  height: auto;
  display: block;
  align-items: center;
  border-radius: 8px;
}

.headline-overlay {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  font-size: 4rem;
  font-weight: bold;
  color: white;
  text-shadow: 2px 2px 6px rgba(0,0,0,0.4); /* ← 読みやすくする影 */
  line-height: 0.6;
}

.headline-overlay span {
  display: block;
}

.contact h2 {
  font-size: 2.5rem;
  color: #1CABB0;
  text-align: center;
  margin-bottom: 1rem;
}

.contact-message {
  margin-top: 5vh;
  text-align: center;
}

.contact-mail {
  width: 50vw;
  max-width: 500px;/* ← 最大サイズを制限（任意） */
  height: auto;    /* ← 縦横比を保つ */
  margin: 1rem auto;
  display: block;
  position: relative;
  z-index: 100;
}

.copyright {
  text-align: center;
}

/* タブレット以下 */
@media (max-width: 1024px) {
  /* hero */
  .name-block {
    font-size: 6rem;
    margin-left: 5vw;
  }
  .vol-block {
    font-size: 4rem;
    margin-left: 10vw;
  }
  .portfolio-label {
    font-size: 3rem;
    margin-left: auto;
    margin-right: auto;
  }

  /* about */
  .about-content {
    flex-direction: column;
    text-align: left;
  }
  .about-text {
    margin-left: 0;
    font-size: 1rem;
  }
  .about-image {
    margin-right: 0;
  }

  /* works */
  .work-item {
    flex-direction: column;
    text-align: left;
  }
  .work-thumb {
    width: 70%;
    margin-bottom: 1rem;
  }
  .work-text {
    font-size: 1rem;
  }

  /* skills */
  .skill-item {
    flex-direction: column;
    text-align: left;
  }
  .skill-item img {
    margin-bottom: 1rem;
  }
}

/* スマホ以下 */
@media (max-width: 600px) {
  nav {
    margin-right: 0; /* スマホでは余白をなくす */
    padding-right:0;
  }
  /* hero */
  .name-block {
    font-size: clamp(2rem, 8vw, 3rem);
    margin-left: 0;
    text-align: center;
  }
  .vol-block {
    font-size: 2rem;
    margin-left: 0;
    text-align: center;
  }
  .portfolio-label {
    font-size: 2rem;
    margin: 2rem auto;
    text-align: center;
  }
  .cat-graphic {
    max-width: 100%; /* 横スクロール防止 */
  }
  h1 {
    position: relative;
    margin-top: 80px;  
  }

  /* about */
  .about-text {
    font-size: 0.9rem;
    line-height: 1.6;
  }

  /* works */
  .work-thumb {
    width: 90%;
  }
  .work-text h3 {
    font-size: 1.2rem;
  }
  .work-text p {
    font-size: 0.9rem;
    line-height: 1.5;
  }

  /* skills */
  .skills h2 {
    font-size: 2rem;
  }
  .subtitle {
    font-size: 1rem;
  }
  .skill-item h3 {
    font-size: 1.2rem;
  }
  .skill-item p {
    font-size: 0.9rem;
  }

  /* contact */
  .headline-overlay {
    font-size: 2rem;
    line-height: 1;
    top: 15%;
  }
  .contact-photo {
    width: 80%;
  }
  .contact-mail {
    width: 80%;
    max-width: 300px;
  }
}