/* =========================================
   PLAIN POP - artist.css (個別ページ専用)
   ========================================= */

/* BREADCRUMB */
.breadcrumb {
  padding: 20px 0;
  font-family: var(--font-sans-en);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-gray-500);
  border-bottom: 1px solid var(--color-gray-100);
}

.breadcrumb a {
  color: var(--color-gray-500);
  transition: color var(--transition-base);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb span {
  margin: 0 8px;
}

.breadcrumb__current {
  color: var(--color-black);
  margin-left: 0 !important;
}

/* ARTIST HERO */
.artist-hero {
  position: relative;
  height: 70vh;
  min-height: 500px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-white);
  display: flex;
  align-items: flex-end;
  padding-bottom: 80px;
}

.artist-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.2) 0%,
    rgba(0, 0, 0, 0.7) 100%
  );
}

.artist-hero__content {
  position: relative;
  z-index: 2;
}

.artist-hero__category {
  display: inline-block;
  padding: 4px 12px;
  font-family: var(--font-sans-en);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--color-white);
  background: var(--color-accent);
  border-radius: 999px;
  margin-bottom: 16px;
}

.artist-hero__name-jp {
  font-family: var(--font-serif-jp);
  font-size: 64px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.artist-hero__name-en {
  font-family: var(--font-serif-en);
  font-size: 18px;
  letter-spacing: 0.3em;
  opacity: 0.8;
  margin-bottom: 24px;
}

.artist-hero__catch {
  font-family: var(--font-serif-jp);
  font-size: 20px;
  line-height: 1.6;
  opacity: 0.95;
  max-width: 600px;
}

/* PROFILE */
.profile-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: stretch;  /* 画像を右カラムの高さに合わせて伸ばす */
}

.profile-image {
  overflow: hidden;
  background: var(--color-gray-100);
  border-radius: 12px;
  min-height: 500px;  /* フォールバック */
}

.profile-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* 縦長ポートレートで顔が切れないよう上寄りクロップ */
  object-position: center 25%;
  display: block;
}

/* 右カラムを縦フレックスにして、Spotify を一番下に貼り付け */
.profile-content {
  display: flex;
  flex-direction: column;
}
.profile-content .section__title-en {
  text-align: left;
  margin-bottom: 32px;
}
/* Spotify 以外の要素はナチュラルに上から、Spotifyだけ下端へ */
.profile-content .profile-spotify {
  margin-top: auto;
}

/* ARTIST HEAD（プロフィール内のアーティスト名ブロック） */
.artist-head {
  margin-bottom: 16px;
  padding-bottom: 0;
  border-bottom: none;
}

.artist-head__category {
  display: inline-block;
  padding: 4px 14px;
  font-family: var(--font-sans-en);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-white);
  background: var(--pop-pink);
  border-radius: 999px;
  margin: 0 0 20px;
}

.artist-head__name-jp {
  font-family: var(--font-serif-jp);
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 8px;
  color: var(--color-black);
  letter-spacing: 0.02em;
}

.artist-head__name-en {
  font-family: var(--font-serif-en);
  font-size: 16px;
  letter-spacing: 0.3em;
  color: var(--color-gray-500);
  margin: 0;
  font-weight: 500;
}

.artist-head__catch {
  font-family: var(--font-serif-jp);
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-gray-700);
  margin: 0;
  font-weight: 500;
}

@media (max-width: 767px) {
  .artist-head__name-jp { font-size: 34px; }
  .artist-head__name-en { font-size: 13px; }
  .artist-head__catch { font-size: 15px; }
}

.profile-text {
  font-size: 16px;
  line-height: 2;
  color: var(--color-gray-700);
  margin-bottom: 40px;
}

.profile-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-gray-100);
  font-size: 17px;
  align-content: center;
  align-items: center;
}

.profile-meta dt {
  font-family: var(--font-sans-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--color-gray-500);
  text-transform: uppercase;
}

.profile-meta dd {
  color: var(--color-black);
  margin: 0;
  font-size: 17px;
  font-weight: 500;
}

/* PROFILE META + COLORSING ROW */
.profile-meta-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;        /* 縦方向に中央揃え */
  justify-items: stretch;
  padding-top: 24px;
  border-top: 1px solid var(--color-gray-100);
  margin-top: 24px;
}

.profile-meta-row .profile-meta {
  padding-top: 0;
  border-top: none;
  margin-top: 0;
  align-self: center;         /* ColorSingカードの高さの中央に配置 */
}

/* PROFILE COLORSING CARD */
.profile-cs-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px 16px 16px;
  background: #FFFFFF;
  border-radius: 16px;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  box-shadow:
    0 8px 24px rgba(199, 36, 240, 0.18),
    0 2px 6px rgba(0, 0, 0, 0.06);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.profile-cs-card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 16px 40px rgba(199, 36, 240, 0.3),
    0 4px 10px rgba(0, 0, 0, 0.08);
}

.profile-cs-card__icon {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-cs-card__icon svg {
  width: 56px;
  height: 56px;
}

.profile-cs-card__info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.profile-cs-card__label {
  font-family: var(--font-sans-en);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--color-gray-500);
  margin: 0;
}

.profile-cs-card__name {
  font-family: var(--font-serif-jp);
  font-size: 16px;
  font-weight: 500;
  color: var(--color-black);
  margin: 0;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.profile-cs-card__desc {
  font-size: 11px;
  color: var(--color-accent);
  font-weight: 500;
  margin: 0;
  transition: transform var(--transition-base);
}

.profile-cs-card:hover .profile-cs-card__desc {
  transform: translateX(4px);
  color: #C724F0;
}

/* レスポンシブ */
@media (max-width: 767px) {
  .profile-meta-row {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .profile-cs-card {
    padding: 14px;
    gap: 12px;
  }

  .profile-cs-card__icon {
    width: 52px;
    height: 52px;
  }

  .profile-cs-card__icon svg {
    width: 48px;
    height: 48px;
  }
}

/* LIVE STREAMING SECTION */
.livestream-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.livestream-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px;
  background: #FFFFFF;
  border-radius: 16px;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.livestream-card__icon {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.livestream-card__info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
  position: relative;
  z-index: 1;
}

.livestream-card__label {
  font-family: var(--font-sans-en);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-gray-500);
  margin: 0;
  text-transform: uppercase;
}

.livestream-card__name {
  font-family: var(--font-serif-jp);
  font-size: 18px;
  font-weight: 500;
  color: var(--color-black);
  margin: 0;
  letter-spacing: 0.02em;
}

.livestream-card__desc {
  font-size: 11px;
  color: var(--color-gray-500);
  font-weight: 500;
  margin: 0;
  transition: transform var(--transition-base);
}

.livestream-card:hover .livestream-card__desc {
  transform: translateX(4px);
}

/* Platform-specific: ColorSing（マゼンタ・パープル） */
.livestream-card--colorsing {
  box-shadow:
    0 8px 24px rgba(199, 36, 240, 0.18),
    0 2px 6px rgba(0, 0, 0, 0.05);
}

.livestream-card--colorsing:hover {
  transform: translateY(-6px);
  box-shadow:
    0 18px 44px rgba(199, 36, 240, 0.3),
    0 4px 10px rgba(0, 0, 0, 0.08);
}

.livestream-card--colorsing:hover .livestream-card__desc {
  color: #C724F0;
}

/* Platform-specific: 17LIVE（レッド） */
.livestream-card--17live {
  box-shadow:
    0 8px 24px rgba(255, 59, 92, 0.18),
    0 2px 6px rgba(0, 0, 0, 0.05);
}

.livestream-card--17live:hover {
  transform: translateY(-6px);
  box-shadow:
    0 18px 44px rgba(255, 59, 92, 0.3),
    0 4px 10px rgba(0, 0, 0, 0.08);
}

.livestream-card--17live:hover .livestream-card__desc {
  color: #FF3B5C;
}

/* Platform-specific: TikTok（ブラック + シアン/ピンク） */
.livestream-card--tiktok {
  box-shadow:
    0 8px 24px rgba(254, 44, 85, 0.15),
    0 2px 6px rgba(0, 0, 0, 0.08);
}

.livestream-card--tiktok:hover {
  transform: translateY(-6px);
  box-shadow:
    0 18px 44px rgba(254, 44, 85, 0.25),
    0 8px 18px rgba(37, 244, 238, 0.2),
    0 4px 10px rgba(0, 0, 0, 0.1);
}

.livestream-card--tiktok:hover .livestream-card__desc {
  color: #FE2C55;
}

/* レスポンシブ */
@media (max-width: 1023px) {
  .livestream-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin: 0 auto;
  }
}

@media (max-width: 767px) {
  .livestream-card {
    padding: 16px;
    gap: 14px;
  }
  .livestream-card__icon {
    width: 56px;
    height: 56px;
  }
  .livestream-card__icon svg {
    width: 44px;
    height: 44px;
  }
  .livestream-card__name {
    font-size: 16px;
  }
}

/* SPOTIFY EMBED */
.profile-spotify {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-gray-100);
}

.profile-spotify__label {
  font-family: var(--font-sans-en);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.profile-spotify iframe {
  display: block;
  border-radius: 12px;
  overflow: hidden;
}

/* SONGS LAYOUT */
.songs-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 960px;
  margin: 0 auto;
}

.songs-list-wrapper {
  height: 260px;
  overflow: hidden;
  position: relative;
}

.songs-list-wrapper::before,
.songs-list-wrapper::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 60px;
  z-index: 2;
  pointer-events: none;
}

.songs-list-wrapper::before {
  top: 0;
  background: linear-gradient(to bottom, var(--color-gray-50) 0%, transparent 100%);
}

.songs-list-wrapper::after {
  bottom: 0;
  background: linear-gradient(to top, var(--color-gray-50) 0%, transparent 100%);
}

.song-list {
  width: 100%;
  list-style: none;
  padding: 0;
  margin: 0;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.song-list li {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 24px;
  font-family: var(--font-serif-jp);
  font-size: 24px;
  font-weight: 500;
  text-align: right;
  color: var(--color-gray-700);
  opacity: 0.75;
  transition: all 0.6s ease;
  position: relative;
  white-space: nowrap;
}

.song-list li.is-near {
  color: var(--color-black);
  opacity: 0.9;
  font-size: 30px;
  font-weight: 600;
}

.song-list li.is-active {
  color: var(--color-black);
  opacity: 1;
  font-size: 42px;
  font-weight: 700;
}

.song-list li.is-active::before {
  content: '♪';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-size: 24px;
}

/* VINYL PLAYER */
.vinyl-player {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  position: relative;
}

/* VISUALIZER - 波形（円形リング） */
/* ディスク中心に合わせるため、disc高さ350px/2 = 175px を中心とする */
.vinyl-visualizer {
  position: absolute;
  top: 175px;  /* ディスク中心のY座標 */
  left: 50%;
  transform: translate(-50%, -50%);  /* 自身の中心を基点に */
  width: 500px;
  height: 500px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.6s ease;
  color: #1E3A5F;
  z-index: 0;
}

.vinyl-visualizer.is-active {
  opacity: 1;
}

.vinyl-visualizer svg {
  width: 100%;
  height: 100%;
  display: block;
}

.vinyl-visualizer__ring {
  transform-origin: 250px 250px;
  opacity: 0.5;
}

.vinyl-visualizer.is-active .vinyl-visualizer__ring--1 {
  animation: ringPulse1 2s ease-in-out infinite;
}
.vinyl-visualizer.is-active .vinyl-visualizer__ring--2 {
  animation: ringPulse2 2.6s ease-in-out infinite;
}
.vinyl-visualizer.is-active .vinyl-visualizer__ring--3 {
  animation: ringPulse3 3.2s ease-in-out infinite;
}
.vinyl-visualizer.is-active .vinyl-visualizer__ring--4 {
  animation: ringPulse4 3.8s ease-in-out infinite;
}

@keyframes ringPulse1 {
  0%, 100% { transform: scale(0.95); opacity: 0.7; }
  50%      { transform: scale(1.08); opacity: 0.2; }
}
@keyframes ringPulse2 {
  0%, 100% { transform: scale(1.0);  opacity: 0.5; }
  50%      { transform: scale(1.12); opacity: 0.15; }
}
@keyframes ringPulse3 {
  0%, 100% { transform: scale(1.02); opacity: 0.35; }
  50%      { transform: scale(1.18); opacity: 0.1; }
}
@keyframes ringPulse4 {
  0%, 100% { transform: scale(1.05); opacity: 0.2; }
  50%      { transform: scale(1.24); opacity: 0.05; }
}

/* 放射状バー（長さは JS で動的制御） */
.vinyl-visualizer__bars line {
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 3;
  opacity: 0.75;
  transition: opacity 0.4s ease;
}

.vinyl-visualizer.is-active .vinyl-visualizer__bars line {
  opacity: 0.9;
}

/* トグルボタン */
.visualizer-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: 999px;
  font-family: var(--font-sans-en);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--color-black);
  cursor: pointer;
  transition: all var(--transition-base);
}

.visualizer-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.visualizer-toggle[aria-pressed="true"] {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.visualizer-toggle__icon {
  display: inline-flex;
  align-items: flex-end;
  gap: 2px;
  height: 14px;
}

.visualizer-toggle__icon span {
  width: 2px;
  background: currentColor;
  border-radius: 1px;
  display: block;
}

.visualizer-toggle__icon span:nth-child(1) { height: 60%; }
.visualizer-toggle__icon span:nth-child(2) { height: 100%; }
.visualizer-toggle__icon span:nth-child(3) { height: 40%; }
.visualizer-toggle__icon span:nth-child(4) { height: 80%; }

.visualizer-toggle[aria-pressed="true"] .visualizer-toggle__icon span {
  animation: toggleBars 0.8s ease-in-out infinite;
}
.visualizer-toggle[aria-pressed="true"] .visualizer-toggle__icon span:nth-child(2) {
  animation-delay: 0.1s;
}
.visualizer-toggle[aria-pressed="true"] .visualizer-toggle__icon span:nth-child(3) {
  animation-delay: 0.2s;
}
.visualizer-toggle[aria-pressed="true"] .visualizer-toggle__icon span:nth-child(4) {
  animation-delay: 0.3s;
}

@keyframes toggleBars {
  0%, 100% { transform: scaleY(0.5); }
  50%      { transform: scaleY(1);   }
}

.vinyl-disc {
  position: relative;
  width: 350px;
  height: 350px;
  cursor: grab;
  transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.25));
  outline: none;
}

.vinyl-disc:active {
  cursor: grabbing;
}

.vinyl-disc.is-spinning {
  animation: vinylIdleSpin 8s linear infinite;
}

@keyframes vinylIdleSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.vinyl-svg {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 50%;
}

.vinyl-glow {
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(30, 58, 95, 0.25) 0%, transparent 70%);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.vinyl-disc:hover .vinyl-glow {
  opacity: 1;
}

/* Spotify 再生ボタン（ディスク中央・アーティスト固有色）
   vinyl-disc の外（vinyl-player 内）に配置し、回転の影響を受けない */
.vinyl-play-btn {
  position: absolute;
  top: 175px;   /* ディスク中心 (350px / 2) */
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #FFFFFF;
  border: 3px solid var(--artist-color, #1DB954);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 16px color-mix(in srgb, var(--artist-color, #1DB954) 40%, transparent);
  z-index: 10;
  padding: 0;
  color: var(--artist-color, #1DB954);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease, color 0.3s ease;
  animation: playBtnPulse 2.4s ease-in-out infinite;
}

.vinyl-play-btn:hover {
  background: var(--artist-color, #1DB954);
  transform: translate(-50%, -50%) scale(1.1);
  color: #FFFFFF;
}

.vinyl-play-btn svg {
  width: 22px;
  height: 22px;
  transition: fill 0.3s ease;
}

@keyframes playBtnPulse {
  0%, 100% {
    box-shadow: 0 4px 16px color-mix(in srgb, var(--artist-color, #1DB954) 40%, transparent);
  }
  50% {
    box-shadow:
      0 4px 28px color-mix(in srgb, var(--artist-color, #1DB954) 70%, transparent),
      0 0 0 8px color-mix(in srgb, var(--artist-color, #1DB954) 12%, transparent);
  }
}

/* 再生中: ボタンが緑背景に反転 + 一時停止ICONに差し替え */
.vinyl-play-btn.is-playing {
  background: #1DB954;
  border-color: #1DB954;
}
.vinyl-play-btn.is-playing svg {
  display: none;
}
.vinyl-play-btn.is-playing::before,
.vinyl-play-btn.is-playing::after {
  content: '';
  width: 5px;
  height: 20px;
  background: #FFFFFF;
  border-radius: 2px;
  display: inline-block;
}
.vinyl-play-btn.is-playing::before { margin-right: 3px; }

/* Spotify埋め込みコンテナ */
.spotify-embed {
  min-height: 152px;
  border-radius: 12px;
  overflow: hidden;
}
.spotify-embed iframe {
  border-radius: 12px;
  display: block;
}

@media (max-width: 767px) {
  .vinyl-play-btn {
    top: 137.5px;  /* SPディスク中心 (275px / 2) */
    width: 52px;
    height: 52px;
  }
  .vinyl-play-btn svg {
    width: 18px;
    height: 18px;
  }
}

.vinyl-hint {
  font-family: var(--font-sans-en);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--color-gray-500);
  margin: 0;
}

/* レスポンシブ */
@media (max-width: 1023px) {
  .songs-layout {
    grid-template-columns: 1fr;
    gap: 48px;
    max-width: 420px;
  }

  .songs-list-wrapper {
    order: 2;
  }

  .vinyl-player {
    order: 1;
  }

  .song-list li {
    justify-content: center;
    padding-right: 0;
  }

  .song-list li.is-active::before {
    position: static;
    margin-right: 12px;
  }
}

@media (max-width: 767px) {
  /* SPでは曲リストを上、ディスクを下に配置 */
  .songs-list-wrapper {
    order: 1;
  }
  .vinyl-player {
    order: 2;
  }

  .vinyl-disc {
    width: 275px;
    height: 275px;
  }

  .vinyl-visualizer {
    top: 137.5px;  /* SP用ディスク中心 275/2 */
    width: 400px;
    height: 400px;
  }

  .song-list li {
    font-size: 20px;
    height: 70px;
  }

  .song-list li.is-active {
    font-size: 26px;
  }

  .songs-list-wrapper {
    height: 210px;
  }
}

/* FOLLOW LINKS */
.follow-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.follow-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  font-family: var(--font-sans-en);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--color-black);
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: 999px;
  transition: all var(--transition-base);
}

.follow-btn svg {
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.follow-btn:hover svg {
  transform: scale(1.1);
}

.follow-btn:hover {
  color: var(--color-white);
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

/* Spotify: 緑 */
.follow-btn--spotify:hover {
  background: #1DB954;
  border-color: #1DB954;
  color: #FFFFFF;
}

/* Apple Music: 赤 */
.follow-btn--apple:hover {
  background: #FA2D48;
  border-color: #FA2D48;
  color: #FFFFFF;
}

/* YouTube: 赤 */
.follow-btn--youtube:hover {
  background: #FF0000;
  border-color: #FF0000;
  color: #FFFFFF;
}

/* Instagram: グラデーション */
.follow-btn--instagram:hover {
  background: linear-gradient(45deg, #F58529 0%, #DD2A7B 50%, #8134AF 100%);
  border-color: #DD2A7B;
  color: #FFFFFF;
}

/* X: 黒 */
.follow-btn--x:hover {
  background: #000000;
  border-color: #000000;
  color: #FFFFFF;
}

/* YouTube Music: 赤 */
.follow-btn--youtube-music:hover {
  background: #FF0000;
  border-color: #FF0000;
  color: #FFFFFF;
}

/* LINE MUSIC: グリーン */
.follow-btn--line:hover {
  background: #00B900;
  border-color: #00B900;
  color: #FFFFFF;
}

/* Amazon Music: ディープブルー */
.follow-btn--amazon:hover {
  background: #25D1DA;
  border-color: #25D1DA;
  color: #FFFFFF;
}

/* TikTok: 黒ベース + ピンク・シアンアクセント */
.follow-btn--tiktok:hover {
  background: #000000;
  border-color: #000000;
  color: #FFFFFF;
}

/* PREV / NEXT NAVIGATION */
.artist-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 64px;
}

.artist-nav__item {
  display: flex;
  flex-direction: column;
  padding: 32px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: 12px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

/* hover時はシンプルに浮上 + 枠線強調のみ */
.artist-nav__item {
  transition: all 0.35s ease;
}

.artist-nav__item:hover,
.artist-nav__item:focus-visible,
.artist-nav__item:active {
  border-color: var(--color-black);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.artist-nav__item--prev {
  text-align: left;
}

.artist-nav__item--next {
  text-align: right;
}

.artist-nav__label {
  font-family: var(--font-sans-en);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 8px;
}

.artist-nav__name {
  font-family: var(--font-serif-jp);
  font-size: 20px;
  color: var(--color-black);
}

.artist-nav-section .section__footer {
  margin-top: 0;
}

/* RESPONSIVE */
@media (max-width: 767px) {
  .artist-hero { height: 60vh; min-height: 400px; padding-bottom: 40px; }
  .artist-hero__name-jp { font-size: 40px; }
  .artist-hero__name-en { font-size: 14px; }
  .artist-hero__catch { font-size: 16px; }

  /* モバイル: PROFILE 見出し → 画像 → 本文 の順に並べ替え */
  .profile-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  .profile-content { display: contents; }
  .profile-content .section__title-en { order: 1; margin-bottom: 0; }
  .profile-image { order: 2; min-height: auto; }
  .profile-image img { aspect-ratio: 3 / 4; height: auto; }
  .artist-head { order: 3; margin-top: 12px; margin-bottom: 16px; padding-bottom: 16px; }
  .profile-text { order: 4; }
  .profile-meta-row { order: 5; }
  .profile-spotify { order: 6; }

  .song-list li { font-size: 18px; padding: 18px 0; }

  .follow-links { gap: 8px; }
  .follow-btn { padding: 12px 20px; font-size: 12px; }

  /* PREV / NEXT は横並び維持 */
  .artist-nav {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .artist-nav__item { padding: 14px 14px; }
  .artist-nav__item--prev { text-align: left; }
  .artist-nav__item--next { text-align: right; }
  .artist-nav__label { font-size: 10px; margin-bottom: 4px; }
  .artist-nav__name { font-size: 13px; line-height: 1.3; }
}

/* ==========================================
   ARTIST 個別ページ - スマホ最適化 追加
   ========================================== */
@media (max-width: 767px) {
  /* PROFILE */
  .profile-grid { gap: 28px; }
  .profile-meta-row { flex-direction: column; gap: 16px; }
  .profile-meta dt, .profile-meta dd { font-size: 13px; }
  /* ColorSing カード */
  .profile-cs-card { padding: 14px; }
  .profile-cs-card__name { font-size: 14px; }

  /* SONGS リスト */
  .songs-layout { display: flex; flex-direction: column; gap: 24px; }
  .song-list { columns: 2; column-gap: 16px; font-size: 14px; }
  .song-list li { padding: 6px 0; break-inside: avoid; }

  /* VINYL ディスク */
  .vinyl-player { width: 100%; max-width: 320px; margin: 0 auto; }
  .vinyl-disc { max-width: 280px; }
  .vinyl-play-btn { min-width: 56px; min-height: 56px; }
  .vinyl-hint { font-size: 11px; }

  /* LINKS フォローボタン */
  .follow-links { grid-template-columns: 1fr; gap: 10px; }
  .follow-btn { padding: 14px 18px; font-size: 14px; min-height: 48px; }

  /* PREV / NEXT ナビゲーション */
  .artist-nav { grid-template-columns: 1fr 1fr; gap: 12px; }
  .artist-nav__item { padding: 16px 14px; min-height: 60px; }
  .artist-nav__label { font-size: 11px; }
  .artist-nav__name { font-size: 14px; }
}