/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background var(--dur-base) var(--ease-out),
              backdrop-filter var(--dur-base) var(--ease-out);
}

.site-header.is-scrolled {
  background: rgba(30, 28, 34, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-gray-border);
}

.site-header__inner {
  width: min(var(--max-width), 100% - var(--sp-xl) * 2);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-lg);
}

.site-header__logo a,
.site-header__logo-text {
  font-family: var(--font-en);
  font-size: 1.3rem;
  font-style: italic;
  color: var(--color-white);
  letter-spacing: 0.05em;
}

.site-header__logo img {
  height: 36px;
  width: auto;
}

/* ナビ */
.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
}

.site-nav__list a {
  font-size: var(--fs-sm);
  color: var(--color-gray-body);
  letter-spacing: 0.12em;
  transition: color var(--dur-fast);
}

.site-nav__list a:hover {
  color: var(--color-pink-accent);
}

/* ハンバーガー（PCでは非表示） */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
}

.hamburger__line {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-white);
  border-radius: 2px;
  transform-origin: center;
  transition: transform var(--dur-base) var(--ease-out),
              opacity var(--dur-fast);
}

.hamburger.is-open .hamburger__line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.hamburger.is-open .hamburger__line:nth-child(2) {
  opacity: 0;
}
.hamburger.is-open .hamburger__line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* モバイルメニュー */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(30, 28, 34, 0.97);
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-xl);
  padding: var(--sp-xl) var(--sp-lg);
  overflow-y: auto;
}

.mobile-menu[hidden] { display: none; }

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-xl);
}

.mobile-menu__list a {
  font-family: var(--font-en);
  font-size: var(--fs-xl);
  font-style: italic;
  color: var(--color-white);
  letter-spacing: 0.08em;
  transition: color var(--dur-fast);
}

.mobile-menu__list a:hover {
  color: var(--color-pink-accent);
}

body.mobile-menu-open {
  overflow: hidden;
}


/* ============================================================
   FIRST VIEW
   ============================================================ */
.fv {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100svh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* 背景レイヤー */
.fv__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
}

.fv__video {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  max-width: none;
  object-fit: cover;
  object-position: center top;
}

/* オーバーレイ */
.fv__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(30, 28, 34, 0.3) 0%,
    rgba(30, 28, 34, 0.1) 40%,
    rgba(30, 28, 34, 0.6) 85%,
    rgba(30, 28, 34, 1)   100%
  );
}

/* CSSアニメ背景（動画なし時） */
.fv__canvas-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(201, 184, 232, 0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 30%, rgba(242, 184, 204, 0.12) 0%, transparent 55%),
              var(--color-gray-bg);
}

.fv__particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.4;
  animation: float linear infinite;
}

.fv__particle--1 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(201, 184, 232, 0.3), transparent 70%);
  top: 20%; left: 10%;
  animation-duration: 18s;
}
.fv__particle--2 {
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(242, 184, 204, 0.3), transparent 70%);
  top: 50%; right: 15%;
  animation-duration: 24s;
  animation-delay: -8s;
}
.fv__particle--3 {
  width: 150px; height: 150px;
  background: radial-gradient(circle, rgba(224, 112, 150, 0.2), transparent 70%);
  bottom: 30%; left: 40%;
  animation-duration: 20s;
  animation-delay: -4s;
}

@keyframes float {
  0%   { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(30px, -40px) scale(1.05); }
  66%  { transform: translate(-20px, 20px) scale(0.97); }
  100% { transform: translate(0, 0) scale(1); }
}

/* コンテンツ */
.fv__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding-top: var(--header-h);
}

.fv__catch-en {
  font-family: var(--font-en);
  font-size: var(--fs-sm);
  font-style: italic;
  color: var(--color-pink-base);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: var(--sp-md);
  opacity: 0;
  transform: translateY(16px);
  animation: fade-up 0.8s var(--ease-out) 0.3s forwards;
}

.fv__title {
  font-family: var(--font-display);
  font-size: var(--fs-xxl);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.1em;
  line-height: var(--lh-tight);
  margin-bottom: var(--sp-md);
  opacity: 0;
  transform: translateY(16px);
  animation: fade-up 0.8s var(--ease-out) 0.5s forwards;
}

.fv__tagline {
  font-size: var(--fs-md);
  color: var(--color-gray-body);
  letter-spacing: 0.15em;
  margin-bottom: var(--sp-xl);
  opacity: 0;
  transform: translateY(16px);
  animation: fade-up 0.8s var(--ease-out) 0.7s forwards;
}

.fv__cta {
  opacity: 0;
  transform: translateY(16px);
  animation: fade-up 0.8s var(--ease-out) 0.9s forwards;
}

/* スクロールヒント */
.fv__scroll-hint {
  position: absolute;
  bottom: var(--sp-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-sm);
  opacity: 0;
  animation: fade-in 1s var(--ease-out) 1.5s forwards;
}

.fv__scroll-text {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--color-gray-muted);
}

.fv__scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-pink-accent), transparent);
  animation: scroll-line 2s var(--ease-inout) 1.5s infinite;
}

@keyframes scroll-line {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* 共通フェードアップ */
@keyframes fade-up {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fade-in {
  to { opacity: 1; }
}

/* ============================================================
   SCROLL ANIMATION
   ============================================================ */

/* --- 基本: 下からフェードアップ --- */
[data-animate] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}
[data-animate].is-visible {
  opacity: 1;
  transform: none;
}

/* --- 見出し: ゆっくり大きめに --- */
.section-heading[data-animate] {
  transition-duration: 0.9s;
  transform: translateY(20px);
}

/* --- カード群: 子要素ごとに遅延 --- */
[data-animate]:nth-child(1) { transition-delay: 0s; }
[data-animate]:nth-child(2) { transition-delay: 0.1s; }
[data-animate]:nth-child(3) { transition-delay: 0.2s; }
[data-animate]:nth-child(4) { transition-delay: 0.3s; }
[data-animate]:nth-child(5) { transition-delay: 0.4s; }
[data-animate]:nth-child(6) { transition-delay: 0.5s; }

/* --- ニュース行: 左からスライドイン --- */
.news-item[data-animate] {
  transform: translateX(-16px);
}
.news-item[data-animate].is-visible {
  transform: none;
}

/* --- Linksカード: スケールイン --- */
.links-card[data-animate] {
  transform: translateY(16px) scale(0.96);
}
.links-card[data-animate].is-visible {
  transform: none;
}

/* --- Works カード: わずかに回転しながら --- */
.works-card[data-animate] {
  transform: translateY(24px) rotate(0.5deg);
}
.works-card[data-animate].is-visible {
  transform: none;
}


/* ============================================================
   SECTION COMMONS
   ============================================================ */
.section-news,
.section-works,
.section-about,
.section-links {
  padding-block: var(--sp-xxl);
}

.section-news    { background: var(--color-gray-bg); }
.section-works   { background: color-mix(in srgb, var(--color-gray-bg) 97%, var(--color-pink-base)); }
.section-about   { background: var(--color-gray-bg); }
.section-links   { background: color-mix(in srgb, var(--color-gray-bg) 96%, var(--color-purple-base)); }


/* ============================================================
   NEWS
   ============================================================ */
.news-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-gray-border);
}

.news-item {
  border-bottom: 1px solid var(--color-gray-border);
}

.news-item__link {
  display: flex;
  align-items: baseline;
  gap: var(--sp-lg);
  padding: var(--sp-md) var(--sp-sm);
  transition: color var(--dur-fast);
}

.news-item__link:hover {
  color: var(--color-pink-accent);
}

.news-item__date {
  flex-shrink: 0;
  font-family: var(--font-en);
  font-size: var(--fs-sm);
  color: var(--color-pink-accent);
  letter-spacing: 0.05em;
}

.news-item__title {
  font-size: var(--fs-sm);
  color: var(--color-gray-body);
  line-height: var(--lh-normal);
}

.news-more {
  margin-top: var(--sp-xl);
  text-align: center;
}

.news-empty {
  text-align: center;
  color: var(--color-gray-muted);
}


/* ============================================================
   WORKS
   ============================================================ */
.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 360px));
  gap: var(--sp-lg);
  justify-content: start;
}


.works-card {
  display: flex;
  flex-direction: column;
}

.works-card__thumb-link {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.works-card__thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

.works-card:hover .works-card__thumb {
  transform: scale(1.04);
}

.works-card__thumb--placeholder {
  background: var(--color-gray-border);
}

.works-card__badge {
  position: absolute;
  top: var(--sp-md);
  left: var(--sp-md);
  padding: 4px 12px;
  border-radius: var(--r-pill);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  font-weight: 600;
}

.works-card__badge--released {
  background: var(--color-pink-accent);
  color: var(--color-white);
}

.works-card__badge--coming_soon {
  background: var(--color-purple-accent);
  color: var(--color-white);
}

.works-card__badge--announced {
  background: var(--color-gray-border);
  color: var(--color-gray-body);
}

.works-card__badge--ended {
  background: #3a3540;
  color: var(--color-gray-muted);
  border: 1px solid var(--color-gray-border);
}

.works-card__badge--in_progress {
  background: rgba(155, 127, 212, 0.25);
  color: var(--color-purple-accent);
  border: 1px solid var(--color-purple-accent);
}

.works-card__body {
  padding: var(--sp-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--sp-sm);
}

.works-card__subtitle {
  font-family: var(--font-en);
  font-size: var(--fs-xs);
  font-style: italic;
  color: var(--color-pink-accent);
  letter-spacing: 0.1em;
}

.works-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--color-white);
  line-height: var(--lh-tight);
}

.works-card__title a:hover {
  color: var(--color-pink-accent);
}

.works-card__date {
  font-size: var(--fs-xs);
  color: var(--color-gray-muted);
  letter-spacing: 0.05em;
}

.works-card .wp-post-image,
.works-card p {
  font-size: var(--fs-sm);
  color: var(--color-gray-muted);
  line-height: var(--lh-normal);
}

.works-card__footer {
  margin-top: auto;
  padding-top: var(--sp-md);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-sm);
}

.works-card__purchase {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-sm);
}

.works-empty {
  text-align: center;
  color: var(--color-gray-muted);
  padding: var(--sp-xxl) 0;
}


/* ============================================================
   ABOUT
   ============================================================ */
.about-body {
  text-align: center;
}

.about-lead {
  font-size: var(--fs-md);
  color: var(--color-gray-body);
  line-height: var(--lh-loose);
}


/* ============================================================
   LINKS
   ============================================================ */
.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--sp-md);
  max-width: 800px;
  margin-inline: auto;
}

.links-card__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-xs);
  padding: var(--sp-xl) var(--sp-lg);
  text-align: center;
  transition: background var(--dur-fast);
}

.links-card__link:hover {
  background: rgba(224, 112, 150, 0.08);
}

.links-card__en {
  font-family: var(--font-en);
  font-size: var(--fs-lg);
  font-style: italic;
  color: var(--color-pink-accent);
  letter-spacing: 0.05em;
}

.links-card__ja {
  font-size: var(--fs-xs);
  color: var(--color-gray-muted);
  letter-spacing: 0.15em;
}


/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  padding-block: var(--sp-xl);
  border-top: 1px solid var(--color-gray-border);
  background: var(--color-gray-bg);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-lg);
  text-align: center;
}

.site-footer__brand {
  font-family: var(--font-en);
  font-size: var(--fs-lg);
  font-style: italic;
  color: var(--color-white);
}

.site-footer__nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-lg);
}

.site-footer__nav-list a {
  font-size: var(--fs-sm);
  color: var(--color-gray-muted);
  letter-spacing: 0.1em;
  transition: color var(--dur-fast);
}

.site-footer__nav-list a:hover {
  color: var(--color-pink-accent);
}

.site-footer__copy {
  font-size: var(--fs-xs);
  color: var(--color-gray-muted);
  letter-spacing: 0.05em;
}


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .site-nav { display: none; }
  .hamburger { display: flex; }

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

  .fv__title {
    font-size: clamp(1.8rem, 8vw, 2.4rem);
  }
}


/* ============================================================
   SECTION DECORATIONS（セクション装飾）
   ============================================================ */

/* セクション見出しのアンダーライン装飾 */
.section-heading__en::after {
  content: '';
  display: block;
  width: 48px;
  height: 1px;
  background: var(--color-pink-accent);
  margin: 12px auto 0;
  opacity: 0.6;
}

/* About セクション強化 */
.section-about {
  position: relative;
}

.about-body {
  max-width: 680px;
  margin-inline: auto;
}

.about-lead {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--color-gray-body);
  line-height: var(--lh-loose);
  letter-spacing: 0.05em;
}

/* Works カード — 1〜2件のとき全幅になるのを防ぐ */

/* スクロールアニメ — 遅延バリエーション */
[data-animate]:nth-child(2) { transition-delay: 0.1s; }
[data-animate]:nth-child(3) { transition-delay: 0.2s; }
[data-animate]:nth-child(4) { transition-delay: 0.3s; }
[data-animate]:nth-child(5) { transition-delay: 0.4s; }
[data-animate]:nth-child(6) { transition-delay: 0.5s; }



/* ============================================================
   SNS LINKS（フッター・モバイルメニュー共通）
   ============================================================ */
.sns-links {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  list-style: none;
}

.sns-links__item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-gray-border);
  color: var(--color-gray-muted);
  transition: color var(--dur-fast), border-color var(--dur-fast),
              background var(--dur-fast);
}

.sns-links__item:hover {
  color: var(--color-pink-accent);
  border-color: var(--color-pink-accent);
  background: rgba(224,112,150,.08);
}

.sns-links--footer {
  justify-content: center;
}

.sns-links--mobile {
  justify-content: center;
  gap: var(--sp-lg);
}

.sns-links--mobile .sns-links__item {
  width: 48px;
  height: 48px;
  border-color: rgba(255,255,255,.15);
  color: var(--color-gray-body);
}

.mobile-menu__sns {
  margin-top: var(--sp-xl);
  padding-top: var(--sp-xl);
  border-top: 1px solid rgba(255,255,255,.08);
}

.site-footer__sns {
  margin-bottom: var(--sp-md);
}


/* ============================================================
   BACK TO TOP ボタン
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: var(--sp-xl);
  right: var(--sp-xl);
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 52px;
  height: 52px;
  border-radius: var(--r-md);
  border: 1px solid var(--color-pink-accent);
  background: rgba(30,28,34,.85);
  backdrop-filter: blur(8px);
  color: var(--color-pink-accent);
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out),
              background var(--dur-fast);
  pointer-events: none;
}

.back-to-top:not([hidden]) {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  background: rgba(224,112,150,.15);
}

.back-to-top__label {
  font-family: var(--font-en);
  font-size: 10px;
  font-style: italic;
  letter-spacing: .1em;
  line-height: 1;
  margin-top: -2px;
}


/* ============================================================
   WORKS CARD 修正（カード全体リンク・レーティング・タイトル詰め）
   ============================================================ */

/* カード全体をリンクにする */
.works-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

.works-card__link:hover .works-card__thumb {
  transform: scale(1.04);
}

.works-card__thumb-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.works-card__thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

.works-card__thumb--placeholder {
  width: 100%;
  height: 100%;
  background: var(--color-gray-border);
}

/* タイトルの文字詰め */
.works-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--color-white);
  line-height: var(--lh-tight);
  letter-spacing: 0.02em;         /* 詰める */
  white-space: nowrap;            /* 1行強制 */
  overflow: hidden;
  text-overflow: ellipsis;
}

/* レーティング表示 */
.works-card__rating {
  display: inline-block;
  margin-top: var(--sp-sm);
  padding: 3px 10px;
  border-radius: var(--r-pill);
  font-size: var(--fs-xs);
  letter-spacing: .08em;
  border: 1px solid var(--color-gray-border);
  color: var(--color-gray-muted);
}