/* =====================
   RESET & BASE
   ===================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #f8f6f2;
  --hero-gradient: linear-gradient(180deg, #f3f3f3 0%, var(--bg) 100%);
  --text: #2a2a2a;
  --text-mid: #666;
  --text-light: #999;
  --border: #dbd7d0;
  --font-en: "proxima-sera", "Proxima Sera", Georgia, serif;
  --font-jp:
    "Zen Old Mincho", "Hiragino Mincho ProN", "Yu Mincho", YuMincho, serif;
  --max-w: 1200px;
  --side-pad: clamp(20px, 4vw, 48px);
  --content-inset-left: clamp(80px, 10vw, 160px);
  --label-w: clamp(160px, 180px, 260px);
}

html {
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-en), var(--font-jp), serif;
  line-height: 1.8;
  overflow-x: hidden;
}

body.is-loading {
  overflow: hidden;
}

/* =====================
   PAGE LOADER
   ===================== */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--hero-gradient);
  transition:
    opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    visibility 0.7s;
}

.page-loader.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loader-inner {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-loader-logo {
  width: clamp(120px, 24vw, 200px);
  height: auto;
  object-fit: contain;
  opacity: 0;
  animation: fadeIn 0.9s ease 0.1s both;
}

#smooth-scroll {
  width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* =====================
   HEADER
   ===================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: transparent;
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  pointer-events: auto;
  transition:
    opacity 0.3s ease-out,
    transform 0.3s ease-out;
}

.header.is-hidden {
  opacity: 0;
  transform: translateY(-10px);
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 0.3s ease-out,
    transform 0.3s ease-out,
    visibility 0s linear 0.3s;
}

.header::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background-color: var(--border);
  opacity: 0;
}

.header.is-scrolled {
  background-color: var(--bg);
}

.header.is-scrolled::after {
  opacity: 1;
}

.header-wrap {
  padding: 0;
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 32px var(--side-pad) 16px var(--content-inset-left);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  margin-left: -14px;
}

.logo-link {
  display: block;
  line-height: 0;
  transition: opacity 0.35s ease;
}

.logo-link:hover {
  opacity: 0.55;
}

.logo-img {
  width: 76.8px;
  height: 76.8px;
  object-fit: contain;
  mix-blend-mode: multiply;
}

@media (min-width: 769px) {
  .logo-img {
    width: 108px;
    height: 108px;
  }
}

/* Nav */
.nav {
  display: flex;
  gap: 28px;
  padding-top: 20px;
}

.nav a,
.footer-nav a {
  display: inline-block;
  font-family: var(--font-en), serif;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--text-mid);
  transition: color 0.35s ease;
}

.nav a {
  font-size: 14px;
}

.nav a:hover,
.footer-nav a:hover {
  color: var(--text);
}

/* ナビホバー：テキスト上下ロール */
.nav-roll {
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
  height: 1em;
  line-height: 1;
}

.nav-roll-inner {
  display: block;
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-roll-text {
  display: block;
}

@media (min-width: 769px) {
  .nav a:hover .nav-roll-inner,
  .footer-nav a:hover .nav-roll-inner {
    transform: translateY(-50%);
  }
}

/* =====================
   HERO
   ===================== */
.hero {
  overflow: hidden;
  position: relative;
  min-height: 100dvh;
  background: var(--hero-gradient);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-bg-layer {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.hero-bg-layer--pc {
  opacity: 1;
}

.hero-bg-layer--sp {
  opacity: 0;
}

.hero-bg-img {
  position: absolute;
  display: block;
  object-fit: cover;
  opacity: 0;
}

.hero-bg-img--pc {
  inset: 0;
  width: 100%;
  height: 100%;
  object-position: center center;
}

.hero-bg-img--sp {
  inset: 0;
  width: 100%;
  height: 100%;
  object-position: center center;
}

body:not(.is-loading) .hero-bg-img {
  animation: fadeIn 1.2s ease 0.1s both;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--side-pad) 112px var(--content-inset-left);
  height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-title {
  margin: 0;
  line-height: 0;
}

.hero-title-img {
  display: block;
  width: clamp(220px, 42vw, 522px);
  height: auto;
}

.hero-lead {
  font-family: var(--font-jp);
  font-size: 13px;
  font-weight: 300;
  color: var(--text-mid);
  letter-spacing: 0.06em;
  line-height: 2;
}

/* =====================
   SECTIONS WRAPPER
   ===================== */
.sections-wrap {
  position: relative;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--side-pad);
}

.sections-wrap::before,
.section::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 100vw;
  margin-left: -50vw;
  height: 1px;
  background-color: var(--border);
  pointer-events: none;
}

.sections-wrap::before {
  top: 0;
}

#top,
.section {
  scroll-margin-top: 72px;
}

/* 各 section 共通 */
.section {
  position: relative;
  display: grid;
  grid-template-columns: minmax(var(--label-w), var(--label-w)) minmax(0, 1fr);
  gap: 0;
  min-height: 30vh;
  padding: clamp(52px, 7vh, 80px) 0;
  align-items: stretch;
  transition:
    grid-template-columns 0.45s cubic-bezier(0.4, 0, 0.2, 1),
    padding 0.45s ease,
    min-height 0.45s ease;
}

.section::after {
  bottom: 0;
}

.sections-wrap .section:last-child::after {
  display: none;
}

.section-label {
  position: relative;
  font-family: var(--font-en), serif;
  font-size: clamp(18px, 1.8vw, 22px);
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--text-mid);
  padding-top: 2px;
  padding-right: clamp(24px, 4vw, 60px);
  align-self: stretch;
  min-width: var(--label-w);
  flex-shrink: 0;
  white-space: nowrap;
  transition:
    min-width 0.45s cubic-bezier(0.4, 0, 0.2, 1),
    font-size 0.3s ease,
    padding 0.45s ease;
}

/* 縦線（PC・タブレット） */
.section-label::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 1px;
  height: 100%;
  background-color: var(--border);
  opacity: 1;
  transition: opacity 0.45s ease;
}

/* 横線（モバイル）— デスクトップでは非表示 */
.section-label::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 100vw;
  margin-left: -50vw;
  height: 1px;
  background-color: var(--border);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s ease;
}

.section-content {
  padding-left: clamp(24px, 4vw, 60px);
  align-self: start;
  transition: padding 0.45s ease;
}

/* =====================
   NEWS
   ===================== */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.news-item {
  display: flex;
  align-items: baseline;
  gap: 32px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.news-item:first-child {
  padding-top: 0;
}

.news-item:last-child {
  border-bottom: none;
}

.news-date {
  font-family: var(--font-en), serif;
  font-size: 14px;
  font-weight: 300;
  color: var(--text);
  letter-spacing: 0.06em;
  line-height: 1.4;
  white-space: nowrap;
  min-width: 90px;
}

.news-text {
  font-family: var(--font-jp);
  font-size: 14px;
  font-weight: 400;
  color: var(--text);
  letter-spacing: 0.02em;
  line-height: 1.4;
}

/* =====================
   ABOUT
   ===================== */
.about-text {
  font-family: var(--font-jp);
  font-size: 14px;
  font-weight: 300;
  color: var(--text);
  line-height: 2.2;
  letter-spacing: 0.04em;
}

/* =====================
   ARTISTS
   ===================== */
.artists-list {
  display: flex;
  flex-direction: column;
}

.artist-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(20px, 4vw, 40px);
  padding: clamp(24px, 3vh, 32px) 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}

.artist-item:first-child {
  padding-top: 0;
}

.artist-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.artist-main {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 28px);
  min-width: 0;
  flex: 1;
}

.artist-names {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  min-width: 0;
}

.artist-ja {
  font-family: var(--font-jp);
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1.4;
  color: var(--text);
}

.artist-en {
  font-family: var(--font-en), serif;
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.14em;
  color: var(--text-mid);
  transition: color 0.35s ease;
}

.artist-item:hover .artist-en {
  color: var(--text);
}

.artist-item::after {
  content: "";
  flex-shrink: 0;
  font-family: var(--font-en), serif;
  background-image: url("images/icon-arrow.svg");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: 16px;
  height: 8px;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.artist-item:hover::after {
  transform: translateX(6px);
}

.artist-icons {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.artist-icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-mid);
  transition:
    border-color 0.25s ease,
    color 0.25s ease;
}

.artist-icon-link:hover {
  border-color: var(--text);
  color: var(--text);
}

/* =====================
   CONTACT
   ===================== */
.contact-link {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  width: fit-content;
  gap: 4px;
  line-height: 0;
  color: var(--text);
}

#contact {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  min-height: auto;
  padding: clamp(52px, 7vh, 80px) 0 83px;
  transition:
    padding 0.45s ease,
    min-height 0.45s ease;
}

#contact .section-label {
  flex: 0 0 var(--label-w);
  width: var(--label-w);
  height: 144px;
}

#contact .section-content {
  flex: 1;
  min-width: 0;
}

.contact-link-text {
  font-family: var(--font-en), serif;
  font-size: 17px;
  font-weight: 400;
  letter-spacing: 0.34px;
  line-height: 20.4px;
}

.contact-link-rule {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 380px;
}

.contact-link-line {
  flex: 1;
  min-width: 0;
  height: 1px;
  background-color: var(--text-light);
}

.contact-link-arrow {
  flex-shrink: 0;
  background-image: url("images/icon-arrow.svg");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: 16px;
  height: 8px;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.contact-link:hover .contact-link-arrow {
  transform: translateX(8px);
}

/* =====================
   FOOTER
   ===================== */
.footer {
  position: relative;
  padding: 0 var(--side-pad) clamp(28px, 4vh, 40px);
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 100vw;
  margin-left: -50vw;
  height: 1px;
  background-color: var(--border);
}

.footer-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: clamp(24px, 4vw, 40px);
  padding: clamp(56px, 8vh, 80px) 0 clamp(32px, 4vh, 48px);
  text-align: left;
}

.footer-brand {
  display: block;
  line-height: 0;
  transition: opacity 0.35s ease;
}

.footer-brand:hover {
  opacity: 0.55;
}

.footer-logo-img {
  display: block;
  width: clamp(140px, 22vw, 296px);
  height: auto;
  object-fit: contain;
}

@media (min-width: 769px) {
  .footer-inner {
    padding-top: clamp(64px, 9vh, 96px);
  }

  .footer-logo-img {
    width: clamp(160px, 18vw, 220px);
  }
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  flex: 1;
  justify-content: flex-end;
  gap: clamp(16px, 3vw, 32px);
}

.footer-nav a {
  font-size: 14px;
  letter-spacing: 0.18em;
}

.footer-social {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.footer-social-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-mid);
  transition:
    border-color 0.2s,
    color 0.2s;
}

.footer-social-btn:hover {
  border-color: var(--text);
  color: var(--text);
}

.copyright {
  position: relative;
  max-width: var(--max-w);
  margin: 0 auto;
  padding-top: clamp(24px, 3vh, 32px);
  font-family: var(--font-en), serif;
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--text-mid);
  text-align: right;
}

.copyright::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: auto;
  width: min(240px, 60%);
  height: 1px;
  background-color: var(--border);
}

/* =====================
   ANIMATIONS
   ===================== */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* 地平線から浮かび上がるアニメーション */
@keyframes riseUp {
  from {
    transform: translateY(110%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ヘッダー初回表示（opacity アニメは .header の transition と競合するため inner のみ） */
body:not(.is-loading) .header-inner {
  animation: fadeIn 0.8s ease both;
}

/* マスク：overflow hidden で「地平線」を作る */
.line-mask {
  display: block;
  overflow: hidden;
  padding-bottom: 0.08em;
}

/* タイトル画像が地平線の下から浮かび上がる */
.hero-title-img {
  display: block;
}

body:not(.is-loading) .hero-title-img {
  animation: riseUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

/* =====================
   SCROLL REVEAL
   ===================== */
.fade-item {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.5s ease,
    transform 0.5s ease-out;
}

.fade-item.fade-in {
  opacity: 1;
  transform: translateY(0);
}

/* Figmaキャプチャ・動きを減らす設定ではスクロール演出を無効化 */
html.reveal-all .fade-item {
  opacity: 1;
  transform: none;
  transition: none;
}

@media (prefers-reduced-motion: reduce) {
  .fade-item {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

html.reveal-all .hero-bg-img,
html.reveal-all .hero-title-img,
html.reveal-all .header-inner {
  animation: none;
  opacity: 1;
  transform: none;
}

html.reveal-all .page-loader {
  display: none;
}

/* Figmaキャプチャ：ヘッダー・ハンバーガーを確実に表示 */
html.reveal-all .header,
html.reveal-all .header-inner,
html.reveal-all .hamburger,
html.reveal-all .hamburger span {
  opacity: 1;
  visibility: visible;
  transform: none;
  animation: none;
}

/* Figmaキャプチャ：ドロワー内のメニュー項目（開閉アニメで opacity:0 のまま残るのを防ぐ） */
html.reveal-all .mobile-nav a,
html.reveal-all .mobile-menu-footer,
html.reveal-all .mobile-close {
  opacity: 1;
  transform: none;
  transition: none;
}

/* Figmaキャプチャ：メニュー開状態（#figmamenu=open） */
html.reveal-all-menu-open .mobile-menu {
  transform: translateX(0);
}

html.reveal-all-menu-open .mobile-overlay {
  display: block;
  background: rgba(42, 42, 42, 0.25);
  pointer-events: all;
}

html.reveal-all-menu-open .hamburger span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

html.reveal-all-menu-open .hamburger span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

html.reveal-all-menu-open .hamburger span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (prefers-reduced-motion: reduce) {
  .hero-bg-layer {
    transition: none;
  }

  .hero-bg-img,
  .hero-title-img,
  .header-inner {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .page-loader {
    transition: none;
  }

  .page-loader-logo {
    animation: none;
    opacity: 1;
  }
}

/* =====================
   RESPONSIVE
   ===================== */

/* =====================
   HAMBURGER & MOBILE MENU
   ===================== */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 200;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--text);
  transition:
    transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.3s ease;
  transform-origin: center;
}

/* 開いた状態 — ✕ 形 */
.hamburger.is-open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.hamburger.is-open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.is-open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* 暗幕オーバーレイ */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  z-index: 140;
  transition: background 0.4s ease;
  pointer-events: none;
}

.mobile-overlay.is-open {
  background: rgba(42, 42, 42, 0.25);
  pointer-events: all;
}

/* ドロワーパネル（右から） */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 88vw);
  background-color: var(--bg);
  border-left: 1px solid var(--border);
  box-shadow: -12px 0 40px rgba(42, 42, 42, 0.06);
  z-index: 150;
  transform: translateX(100%);
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  flex-direction: column;
}

.mobile-menu.is-open {
  transform: translateX(0);
}

/* ヘッダー行（ロゴ + 閉じるボタン） */
.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  padding: 24px 24px 20px;
  border-bottom: 1px solid var(--border);
}

.mobile-brand {
  display: block;
  line-height: 0;
  color: inherit;
  transition: opacity 0.3s ease;
}

.mobile-brand:hover {
  opacity: 0.55;
}

.mobile-logo-img {
  display: block;
  width: clamp(80px, 24vw, 56px);
  height: auto;
  object-fit: contain;
}

/* 閉じるボタン */
.mobile-close {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 50%;
  cursor: pointer;
  color: var(--text-mid);
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition:
    opacity 0.3s ease 0.12s,
    border-color 0.25s ease,
    color 0.25s ease;
}

.mobile-close:hover {
  border-color: var(--text);
  color: var(--text);
}

.mobile-menu.is-open .mobile-close {
  opacity: 1;
}

/* ナビゲーション */
.mobile-nav {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 8px 24px 24px;
}

.mobile-nav a {
  display: inline-block;
  font-family: var(--font-en), serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--text-mid);
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 0.4s ease,
    transform 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    color 0.3s ease;
  cursor: pointer;
}

.mobile-nav a:last-of-type {
  border-bottom: none;
}

.mobile-nav a:hover {
  color: var(--text);
}

.mobile-menu.is-open .mobile-nav a {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.is-open .mobile-nav a:nth-of-type(2) {
  transition-delay: 0.06s;
}
.mobile-menu.is-open .mobile-nav a:nth-of-type(3) {
  transition-delay: 0.1s;
}
.mobile-menu.is-open .mobile-nav a:nth-of-type(4) {
  transition-delay: 0.14s;
}

/* フッター（連絡先 + SNS） */
.mobile-menu-footer {
  flex-shrink: 0;
  margin-top: auto;
  padding: 24px;
  border-top: 1px solid var(--border);
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity 0.4s ease 0.2s,
    transform 0.45s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}

.mobile-menu.is-open .mobile-menu-footer {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu-email {
  display: block;
  font-family: var(--font-en), serif;
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--text);
  margin-bottom: 20px;
  transition: opacity 0.3s ease;
}

.mobile-menu-email:hover {
  opacity: 0.5;
}

.mobile-socials {
  display: flex;
  gap: 12px;
}

.mobile-social-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-mid);
  transition:
    border-color 0.25s ease,
    color 0.25s ease;
}

.mobile-social-btn:hover {
  border-color: var(--text);
  color: var(--text);
}

@media (min-width: 769px) {
  :root {
    --content-inset-left: 56px;
  }
}

/* スマートフォン (縦) */
@media (max-width: 768px) {
  :root {
    --label-w: 100%;
  }

  /* ヘッダー */
  :root {
    --content-inset-left: 48px;
  }

  .header-inner {
    padding: 20px var(--side-pad) 14px var(--content-inset-left);
    align-items: flex-start;
  }

  /* デスクトップnavを隠し、ハンバーガーを表示 */
  .nav {
    display: none;
  }

  .hamburger {
    display: flex;
    margin-top: 10px;
  }

  .mobile-overlay {
    display: block;
  }

  .mobile-menu {
    display: flex;
  }

  .page-loader-logo {
    width: clamp(148px, 40vw, 180px);
  }

  .hero-inner {
    justify-content: center;
    padding-bottom: 0;
  }

  .hero-content {
    transform: translateY(clamp(60px, 14dvh, 120px));
  }

  .hero-title-img {
    width: clamp(200px, 54vw, 420px);
  }

  .hero-bg-layer--pc {
    opacity: 0;
  }

  .hero-bg-layer--sp {
    opacity: 1;
  }

  /* セクション: 縦積みレイアウト */
  .section {
    grid-template-columns: 1fr;
    padding: clamp(40px, 8vh, 60px) 0;
    align-items: start;
  }

  .section-label {
    padding-right: 0;
    padding-bottom: 20px;
    font-size: 18px;
  }

  .section-label::before {
    opacity: 0;
  }

  .section-label::after {
    opacity: 0;
  }

  .section-content {
    padding-left: 0;
  }

  #news .section-label {
    padding-bottom: 40px;
  }

  #contact {
    flex-direction: column;
    padding: 60px 0 83px;
  }

  #contact .section-label {
    flex: none;
    width: auto;
    padding-bottom: 45px;
  }

  #contact .section-content {
    padding-left: 0;
    width: 100%;
  }

  #contact .contact-link {
    display: flex;
    width: 100%;
  }

  #contact .contact-link-rule {
    width: 100%;
  }

  .news-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 0 0 14px;
    border-bottom: none;
  }

  .news-date {
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.84px;
    min-width: 0;
    white-space: normal;
  }

  .news-text {
    letter-spacing: 0.28px;
  }

  /* アーティスト */
  .artist-item {
    align-items: flex-start;
    gap: 16px;
    padding: 24px 0;
  }

  .artist-main {
    align-items: center;
    gap: 12px;
  }

  .artist-names {
    gap: 6px;
  }

  .artist-item::after {
    align-self: center;
  }

  .footer {
    padding-left: 0;
    padding-right: 0;
    padding-bottom: 34px;
  }

  .footer-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    row-gap: 40px;
    column-gap: 16px;
    align-items: start;
    max-width: none;
    padding: 68px var(--side-pad) 0;
    text-align: left;
  }

  .footer-brand {
    grid-column: 1 / -1;
    justify-self: center;
  }

  .footer-logo-img {
    width: 160px;
    margin-bottom: 0;
  }

  .footer-nav {
    grid-column: 1;
    grid-row: 2;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    flex: none;
    gap: 24px;
    width: auto;
    max-width: none;
  }

  .footer-nav a[href="#artists"] {
    display: none;
  }

  .footer-nav a {
    flex-shrink: 0;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.96px;
    line-height: 12px;
    white-space: nowrap;
  }

  .footer-social {
    grid-column: 2;
    grid-row: 2;
    justify-self: end;
    align-self: start;
    justify-content: flex-end;
  }

  .copyright {
    margin-top: 60px;
    max-width: none;
    padding: 16px var(--side-pad) 0;
    text-align: center;
    letter-spacing: 2.4px;
    line-height: 21.6px;
  }

  .copyright::before {
    display: block;
    left: 50%;
    right: auto;
    width: 100vw;
    margin-left: -50vw;
  }
  #contact .section-label {
    height: unset;
  }
}

/* スマートフォン (極小) */
@media (max-width: 480px) {
  .nav {
    gap: 14px;
  }

  .nav a {
    font-size: 10px;
  }
}