/* ============================================================
   index.css — トップページ専用スタイル
   ============================================================ */

/* HERO */
.hero-bg-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(8rem, 20vw, 22rem);
  font-weight: 700;
  color: var(--surface2);
  white-space: nowrap;
  letter-spacing: -0.04em;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--accent);
  padding: 0.3rem 0.8rem;
  margin-bottom: 1.5rem;
  animation: fadeUp .7s ease .1s both;
}

.hero-name {
  font-size: clamp(3rem, 8vw, 7.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 0.6rem;
  animation: fadeUp .7s ease .25s both;
}

.hero-name span {
  color: var(--accent);
}

.hero-univ {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-sub);
  margin-bottom: 2.5rem;
  animation: fadeUp .7s ease .4s both;
}

.hero-catch {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 500;
  line-height: 1.9;
  color: var(--text-sub);
  max-width: 520px;
  margin-bottom: 3rem;
  animation: fadeUp .7s ease .55s both;
}

.hero-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  animation: fadeUp .7s ease .7s both;
}

.skill-pill {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 2.5px solid var(--border);
  padding: 0.4rem 0.9rem;
  color: var(--text);
  background: var(--bg);
  transition: all .15s;
}

.skill-pill:hover {
  border-color: var(--accent4);
  background: var(--accent4);
  color: var(--text);
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  right: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  animation: fadeIn 1s ease 1s both;
}

.hero-scroll span {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
  writing-mode: vertical-rl;
}

.scroll-line {
  width: 2px;
  height: 60px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {

  0%,
  100% {
    opacity: .4;
    transform: scaleY(.8);
  }

  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

/* WORKS SECTION */
#works {
  padding: 7rem 2.5rem;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3.5rem;
}

/* FILTER */
.filter-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.filter-btn {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.5rem 1.1rem;
  border: 2.5px solid var(--border);
  background: var(--bg);
  color: var(--text);
  cursor: none;
  transition: all .15s;
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--text);
  color: var(--bg);
}

/* WORKS GRID */
.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.work-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  z-index: 0;
  background: #fff;
}

.work-thumb video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  z-index: 0;
}

.work-card {
  background: var(--bg);
  border: 2.5px solid var(--border);
  overflow: hidden;
  text-decoration: none;
  display: block;
  transition: transform .2s, box-shadow .2s;
}

.work-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 6px 6px 0 var(--border);
}

.work-thumb {
  aspect-ratio: 16/10;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  font-size: 4rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.6);
}

.work-thumb-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  transition: background .2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.work-card:hover .work-thumb-overlay {
  background: rgba(0, 0, 0, 0.12);
}

.view-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: white;
  opacity: 0;
  transition: opacity .2s;
  background: var(--accent);
  padding: 0.4rem 0.8rem;
}

.work-card:hover .view-label {
  opacity: 1;
}

.work-body {
  padding: 1.4rem;
}

.work-cat-badge {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  display: inline-block;
  margin-bottom: 0.75rem;
  border: 2px solid;
}

.cat-web-site {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(238, 232, 232, 0.08);
}

.cat-web-app {
  border-color: var(--accent2);
  color: var(--accent2);
  background: rgba(0, 196, 154, 0.08);
}

.cat-planning {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255, 107, 26, 0.08);
}

.cat-graphic {
  border-color: var(--accent5);
  color: var(--accent5);
  background: rgba(176, 90, 255, 0.08);
}

.work-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.work-desc {
  font-size: 0.8rem;
  line-height: 1.8;
  color: var(--text-sub);
  margin-bottom: 1rem;
}

.work-tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.work-tech {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text);
  border: 2px solid var(--border);
  padding: 0.15rem 0.5rem;
  background: var(--bg);
}

.filter-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-sub {
  margin-top: 0.6rem;
  padding-top: 0.6rem;
  border-top: 1.5px solid var(--border);
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  visibility: hidden;
  pointer-events: none;
  transition: visibility .0s;
}

.filter-sub.visible {
  visibility: visible;
  pointer-events: all;
}

.filter-sub-btn {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border: 2px solid var(--border);
  background: transparent;
  color: var(--text-sub);
  cursor: none;
  ransition: all .15s;
}

.filter-sub-btn.active,
.filter-sub-btn:hover {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

/* ABOUT SIMPLE */
#about {
  padding: 7rem 2.5rem 0 2.5rem;
  border-top: 2.5px solid var(--border);

  text-align: center;
}

.about_flex{
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 5rem;
  margin-top: 3rem;
}

.about-visual {
  position: relative;
  width: 20rem;
  flex-shrink: 0;
}

.about-visual img {
  width: 20rem;
  object-fit: cover;
  display: block;
  margin: 0 auto 2rem;
  transition: opacity .5s ease;
}

.about-visual-hover {
  position: absolute;
  inset: 0;
  opacity: 0;
}

.about-simple {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  align-items: center;
  margin-top: 3rem;
}

.about-simple-img {
  width: 100%;
  height: 100%;
  max-height: unset;
  border: 2.5px solid var(--border);
  background: var(--surface2);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.about-simple-body {
  padding-top: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.about-simple-text {
  font-size: 1.1rem;
  line-height: 2.1;
  color: var(--text-sub);
  margin-bottom: 2rem;
  text-align: left;
}

/* スマホ */
@media (max-width: 768px) {
  #about {
    padding: 5rem 1.2rem;
  }

  .about-simple {
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
  }

  .about-simple-img {
    height: 60vw;
    max-height: unset;
  }
}

/* リンクボタン */
.link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--bg);
  background: var(--accent);
  border: 2.5px solid var(--accent);
  transition: all .15s;
  cursor: none;
}

.link-btn:hover {
  background: transparent;
  color: var(--accent);
}

@media (max-width: 768px) {
  .about_flex {
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }

  .about-visual {
    width: 100%;
    max-width: 280px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    position: relative;
  }

  .about-visual img {
    display: block;
    width: 100%;
  }

  .about-visual-hover {
    position: absolute;
    inset: 0;
    opacity: 0;
  }


  .about-simple-body {
    width: 100%;
    align-items: center;
  }

  .about-simple-text {
    text-align: center;
    font-size: 1rem;
  }
}

/* CONTACT SECTION (index内) */
#contact {
  padding: 7rem 2.5rem;
  border-top: 2.5px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.contact-right {
  display: flex;
  flex-direction: column;
}

.contact-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0.75rem;
  border-bottom: 2.5px solid var(--border);
  text-decoration: none;
  transition: background .15s, padding-left .15s;
}

.contact-row:hover {
  background: var(--surface2);
  padding-left: 1.2rem;
}

.contact-row-label {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

@media (max-width: 768px) {
  .works-grid {
    grid-template-columns: 1fr;
    /* 1列 */
    gap: 0.75rem;
    /* ← 間隔を少し狭める */
  }

  .work-title {
    font-size: 0.85rem;
    /* ← 2列だと幅が狭いので文字を小さく */
  }

  .work-desc {
    font-size: 0.72rem;
  }

  .work-body {
    padding: 0.9rem;
  }
}

.contact-row-val {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}

.contact-row-arrow {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.1rem;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  #hero {
    padding: 7rem 1.2rem 4rem;
  }

  #works,
  #about,
  #contact {
    padding: 5rem 1.2rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  #contact {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .about-items {
    grid-template-columns: 1fr;
  }
}

/* GALLERY */
#gallery {
  padding: 7rem 0;
  border-top: 2.5px solid var(--border);
  overflow: hidden;
}

#gallery .section-head {
  padding: 0 2.5rem;
  margin-bottom: 3rem;
}

.gallery-scroll {
  overflow: hidden;
}

.gallery-track {
  display: flex;
  gap: 1rem;
  width: max-content;
  animation: galleryLoop 40s linear infinite;
}

.gallery-track:hover {
  animation-play-state: paused;
  /* ホバーで一時停止 */
}

@keyframes galleryLoop {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }

  /* 複製分の50%戻る */
}

.gallery-item {
  width: 150px;
  aspect-ratio: 1/1;
  flex-shrink: 0;
  overflow: hidden;
  border: 2.5px solid var(--border);
  background: var(--surface2);
}

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

/* スマホ */
@media (max-width: 768px) {
  #gallery {
    padding: 5rem 0;
  }

  #gallery .section-head {
    padding: 0 1.2rem;
  }

  .gallery-item {
    width: 160px;
  }
}

.gallery-scroll {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.gallery-track-reverse {
  animation: galleryLoopReverse 40s linear infinite;
}

.gallery-track-reverse:hover {
  animation-play-state: paused;
}

@keyframes galleryLoopReverse {
  0% {
    transform: translateX(-50%);
  }

  100% {
    transform: translateX(0);
  }
}

/* GALLERY MODAL */
.gallery-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
}

.gallery-modal.open {
  opacity: 1;
  pointer-events: all;
}

.gallery-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
}

.gallery-modal-inner {
  position: relative;
  z-index: 1;
  width: min(60vw, 360px);
  background: var(--bg);
  border: 2.5px solid var(--border);
  display: flex;
  flex-direction: column;
}

.gallery-modal-close {
  position: absolute;
  top: -1rem;
  right: -1rem;
  width: 36px;
  height: 36px;
  background: var(--bg);
  color: var(--text);
  border: 2.5px solid var(--border);
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: none;
  transition: all .15s;
}

.gallery-modal-close:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.gallery-modal-inner img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  display: block;
}

.gallery-modal-body {
  padding: 1.2rem 1.5rem;
  border-top: 2.5px solid var(--border);
}

.gallery-modal-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.gallery-modal-desc {
  font-size: 0.8rem;
  line-height: 1.8;
  color: var(--text-sub);
}

@media (max-width: 768px) {
  .gallery-modal-inner {
    width: min(85vw, 360px);
  }
}

/* ギャラリーモーダル 前後ボタン */
.gallery-modal-prev,
.gallery-modal-next {
  position: absolute;
  top: calc(min(60vw, 360px) / 2);
  /* 画像の中央 */
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  background: var(--bg);
  color: var(--text);
  border: 2.5px solid var(--border);
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: none;
  transition: all .15s;
  z-index: 2;
}

.gallery-modal-prev {
  left: -1.5rem;
}

.gallery-modal-next {
  right: -1.5rem;
}

.gallery-modal-prev:hover,
.gallery-modal-next:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.gallery-modal-counter {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--muted);
  text-align: center;
  padding: 0.5rem 0 0;
}

/* HERO SLIDER */
#hero {
  background-image: url('../img/kv_bg.svg');
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;

  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 0 2.5rem;
}

.hero-slider {
  position: relative;
  width: 100%;
  margin-top: 8rem;
}

@media (max-width: 768px) {
  .hero-slider {
    position: relative;
    width: 100%;
    margin-top: 3rem;
  }
}

.hero-slider-track {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 3rem 0 4rem;
}

/* スタンプ・シール風カード */
.hero-slider-card {
  flex-shrink: 0;
  text-decoration: none;
  background: var(--bg);
  width: calc((100vw - 500px - 6rem) / 2);
  max-width: 200px;
  opacity: 0.5;
  cursor: none;
  position: relative;
  /* ギザギザ枠（スタンプ風） */
  --notch: 8px;
  clip-path: polygon(var(--notch) 0%, calc(100% - var(--notch)) 0%,
      100% var(--notch), 100% calc(100% - var(--notch)),
      calc(100% - var(--notch)) 100%, var(--notch) 100%,
      0% calc(100% - var(--notch)), 0% var(--notch));
  outline: 3px solid var(--border);
  outline-offset: -3px;
  transition: opacity .4s ease;
  transform: scale(0.85);
}

.hero-slider-card.active {
  width: 500px;
  max-width: 500px;
  opacity: 1;
  transform: scale(1);
  z-index: 2;
  animation: cardBounce .6s cubic-bezier(.34, 1.56, .64, 1) both;
}

@keyframes cardBounce {
  0% {
    transform: scale(0.85) translateY(10px);
  }

  60% {
    transform: scale(1.03) translateY(-4px);
  }

  80% {
    transform: scale(0.98) translateY(2px);
  }

  100% {
    transform: scale(1) translateY(0);
  }
}

.hero-slider-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
}

/* スタンプ風ラベル */
.hero-slider-card-body {
  padding: 0.7rem 0.8rem;
  background: var(--bg);
  border-top: 3px dashed var(--border);
  position: relative;
}

.hero-slider-card-body::before {
  content: '★';
  font-size: 0.55rem;
  color: var(--accent);
  margin-right: 0.35rem;
}

.hero-slider-card-body span {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.06em;
  line-height: 1.4;
  display: inline;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* アクティブのラベルを少し大きく */
.hero-slider-card.active .hero-slider-card-body span {
  font-size: 0.85rem;
}

/* アクティブ枠をアクセントカラーに */
.hero-slider-card.active {
  outline-color: var(--accent);
}

/* ホバー */
.hero-slider-card.active:hover {
  filter: brightness(1.04);
}

/* 非アクティブカードの傾き */
.hero-slider-card:not(.active):first-child {
  transform: rotate(-3deg) scale(0.85);
}

.hero-slider-card:not(.active):last-child {
  transform: rotate(3deg) scale(0.85);
}

/* 前後ボタン */
.hero-slider-prev,
.hero-slider-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 44px;
  height: 60px;
  background: var(--bg);
  color: var(--text);
  border: 2.5px solid var(--border);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: none;
  transition: all .15s;
}

.hero-slider-prev {
  left: 1rem;
}

.hero-slider-next {
  right: 1rem;
}

.hero-slider-prev:hover,
.hero-slider-next:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

/* ドット */
.hero-slider-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.hero-slider-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
  border: none;
  transition: background .2s;
  cursor: none;
}

.hero-slider-dot.active {
  background: var(--accent);
}

/* スマホ */
@media (max-width: 768px) {
  .hero-slider-card {
    width: calc((100vw - 280px - 3rem) / 2);
    max-width: 100px;
  }

  .hero-slider-card.active {
    width: 280px;
    max-width: 280px;
  }

  .hero-slider-prev {
    left: 0.3rem;
  }

  .hero-slider-next {
    right: 0.3rem;
  }
}

/* ヒーロータイトル */
.hero-title-wrap {
  position: relative;
  z-index: 3;
  padding: 0 0 2rem 0;
  margin-bottom: -3rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-title-wrap h1 {
  margin-bottom: 0.6rem;
}

.hero-title-wrap img {
  width: 15rem;
}

.hero-title-sub {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--accent);
  display: inline-block;
  padding: 0.2rem 0.6rem;
  margin-bottom: 0.6rem;
  animation: fadeUp .7s ease .1s both;
}

.hero-title-main {
  font-size: clamp(0.51rem, 6vw, 1rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--text);
  letter-spacing: -0.02em;
  animation: fadeUp .7s ease .25s both;
}

/* スマホ */
@media (max-width: 768px) {
  .hero-title-wrap {
    padding: 3rem 1.2rem 0;
    margin-bottom: -2rem;
  }
}

.works-empty {
  display: none;
  grid-column: 1 / -1;
  width: 100%;
  padding: 5rem 0;
  text-align: center;
  box-sizing: border-box;
  outline: 2.5px dashed var(--border);
  /* border → outline に変更 */
}

@media (max-width: 768px) {
  .works-empty {
    margin: 0;
    width: 100%;
    border-left: 2.5px dashed var(--border);
    border-right: 2.5px dashed var(--border);
  }
}

.works-empty-text {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
}

.work-external-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1.5px solid var(--accent);
  padding-bottom: 0.05em;
  transition: opacity .15s;
}

.work-external-link:hover {
  opacity: 0.7;
}