/* ===================================================
   VIBE — MP4 Music Player | Premium Dark Theme
   =================================================== */

/* ── Design Tokens ─────────────────────────────── */
:root {
  --bg-base:       #05050f;
  --bg-surface:    #0d0d1e;
  --bg-card:       #111127;
  --bg-elevated:   #181830;
  --border-subtle: rgba(var(--accent-rgb), 0.12);
  --border-glow:   rgba(var(--accent-rgb), 0.35);

  --accent-purple: #8b5cf6;
  --accent-rgb: 138, 92, 246;
  --accent-cyan:   #06b6d4;
  --accent-pink:   #ec4899;
  --accent-green:  #10b981;

  --text-primary:  #f1f0ff;
  --text-secondary:#a9a8c8;
  --text-muted:    #5e5d80;

  --gradient-primary: linear-gradient(135deg, #8b5cf6, #06b6d4);
  --gradient-pink:    linear-gradient(135deg, #ec4899, #8b5cf6);
  --gradient-warm:    linear-gradient(135deg, #f59e0b, #ec4899);

  --player-height: 92px;
  --header-height: 68px;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-card: 0 8px 32px rgba(0,0,0,0.5), 0 2px 8px rgba(0,0,0,0.3);
  --shadow-glow: 0 0 30px rgba(var(--accent-rgb),0.3), 0 0 60px rgba(6,182,212,0.15);

  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ── Reset & Base ───────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; max-width: 100vw; overflow-x: hidden; }

body {
  font-family: 'Inter', 'Outfit', system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

button { cursor: pointer; border: none; background: none; font-family: inherit; }
input { font-family: inherit; }
a { text-decoration: none; color: inherit; }

/* ── Background Layers ──────────────────────────── */
.bg-layer {
  position: fixed; inset: 0; z-index: 0;
  background:
    url('bg_visualizer.png') center/cover no-repeat,
    var(--bg-base);
  opacity: 0.18;
  transition: background 1.2s var(--ease-smooth);
  filter: blur(2px) saturate(1.4);
}

.bg-gradient-overlay {
  position: fixed; inset: 0; z-index: 1;
  background:
    radial-gradient(ellipse 70% 50% at 20% 20%, rgba(var(--accent-rgb),0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 70%, rgba(6,182,212,0.10) 0%, transparent 60%),
    linear-gradient(to bottom, rgba(5,5,15,0.6) 0%, rgba(5,5,15,0.85) 50%, rgba(5,5,15,0.97) 100%);
  pointer-events: none;
}

#particleCanvas {
  position: fixed; inset: 0; z-index: 2;
  pointer-events: none;
  opacity: 0.45;
}

/* ── App Container ──────────────────────────────── */
.app-container {
  position: relative; z-index: 10;
  min-height: 100vh;
  padding-bottom: calc(var(--player-height) + 24px);
}

/* ── Header ─────────────────────────────────────── */
.app-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-height);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px;
  background: rgba(5, 5, 15, 0.72);
  backdrop-filter: blur(24px) saturate(1.6);
  -webkit-backdrop-filter: blur(24px) saturate(1.6);
  border-bottom: 1px solid var(--border-subtle);
  transition: box-shadow 0.3s;
}

.header-left {
  display: flex; align-items: center;
  flex: 1; min-width: 0;
}

.header-right {
  display: flex; align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.app-header.scrolled {
  box-shadow: 0 2px 40px rgba(0,0,0,0.6), 0 1px 0 var(--border-glow);
}

.logo {
  display: flex; align-items: center; gap: 10px;
}

.logo-icon {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(139,92,246,0.15), rgba(6,182,212,0.1));
  border: 1px solid var(--border-glow);
  border-radius: 10px;
  transition: transform 0.2s var(--ease-spring);
}

.logo-icon-img {
  width: 42px; height: 42px;
  border-radius: 10px;
  overflow: hidden;
  padding: 0;
  background: none;
  border: 1.5px solid rgba(var(--accent-rgb),0.35);
  box-shadow: 0 0 12px rgba(var(--accent-rgb),0.25);
}

.logo-img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 15%;
  display: block;
  border-radius: 8px;
  transition: transform 0.35s var(--ease-spring);
}

.logo:hover .logo-img {
  transform: scale(1.08);
}

.logo-icon:hover { transform: scale(1.08) rotate(-4deg); }

.logo-text {
  font-family: 'Outfit', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #ffffff;
  white-space: nowrap;
}

.logo-text-sub {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  opacity: 0.75;
}

.header-nav {
  display: flex; gap: 8px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 18px;
  border-radius: 40px;
  transition: all 0.2s var(--ease-smooth);
  position: relative;
}

.nav-link:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }

.nav-link.active {
  color: var(--text-primary);
  background: rgba(var(--accent-rgb),0.15);
  border: 1px solid rgba(var(--accent-rgb),0.25);
}

.search-bar {
  display: flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 40px;
  padding: 9px 18px;
  transition: all 0.2s;
  color: var(--text-muted);
}

.search-bar:focus-within {
  border-color: var(--accent-purple);
  background: rgba(var(--accent-rgb),0.08);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb),0.12);
  color: var(--text-primary);
}

.search-bar input {
  background: none; border: none; outline: none;
  color: var(--text-primary);
  font-size: 0.875rem;
  width: 180px;
}

.search-bar input::placeholder { color: var(--text-muted); }

/* ── Reset Button ───────────────────────────────── */
.reset-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.22s var(--ease-smooth);
  font-family: inherit;
  flex-shrink: 0;
}

.reset-btn-label {
  display: none; /* 常に非表示（アイコンのみ） */
}

.reset-btn:hover {
  color: #f87171;
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.4);
  box-shadow: 0 0 14px rgba(239, 68, 68, 0.2);
}

.reset-btn:hover svg {
  animation: spin-once 0.45s var(--ease-smooth);
}

.reset-btn:active {
  transform: scale(0.9);
}

@keyframes spin-once {
  from { transform: rotate(0deg); }
  to   { transform: rotate(-360deg); }
}

/* ── Hero Section ───────────────────────────────── */

.hero-section {
  display: flex; align-items: center; justify-content: space-between;
  padding: 60px 40px 48px;
  gap: 40px;
  min-height: 340px;
  overflow: hidden;
}

.hero-text {
  flex: 1;
  max-width: 500px;
  animation: fadeInUp 0.8s var(--ease-smooth) both;
}

.hero-eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 14px;
}

.hero-title {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-weight: 400;
}

.hero-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--accent-cyan);
  color: white;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: 40px;
  letter-spacing: 0.02em;
  transition: all 0.25s var(--ease-spring);
  box-shadow: 0 4px 24px rgba(6,182,212,0.35);
}

.hero-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 36px rgba(6,182,212,0.5);
}

.hero-btn:active { transform: scale(0.97); }

/* Hero Visual */
.hero-visual-container {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  animation: fadeInRight 0.9s var(--ease-smooth) 0.1s both;
  flex: 0 1 auto;  /* shrink allowed, no grow */
  min-width: 0;
  max-width: 45%;
}

/* ── Aspect Ratio Switcher ─────────────────────── */
.aspect-switcher {
  display: flex;
  gap: 6px;
  background: rgba(10, 10, 25, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(var(--accent-rgb), 0.18);
  border-radius: 40px;
  padding: 5px 8px;
  align-self: flex-end;
}

.aspect-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: 30px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.22s var(--ease-smooth);
  white-space: nowrap;
}

.aspect-btn:hover {
  color: var(--text-primary);
  background: rgba(var(--accent-rgb), 0.1);
  border-color: rgba(var(--accent-rgb), 0.2);
}

.aspect-btn.active {
  color: var(--text-primary);
  background: rgba(var(--accent-rgb), 0.2);
  border-color: rgba(var(--accent-rgb), 0.4);
  box-shadow: 0 0 12px rgba(var(--accent-rgb), 0.2);
}

.aspect-btn svg {
  flex-shrink: 0;
  transition: transform 0.2s var(--ease-spring);
}

.aspect-btn:hover svg {
  transform: scale(1.15);
}

/* Hero Visual — aspect ratio variants */
.hero-visual {
  position: relative;
  transition: width 0.4s var(--ease-smooth);
  animation: none; /* container handles animation */
}

/* 正方形 (default) */
.hero-visual.aspect-square {
  width: clamp(120px, 22vw, 260px);
  aspect-ratio: 1 / 1;
  height: auto;
}

/* 横長 16:9 (1920×1080) */
.hero-visual.aspect-landscape {
  width: clamp(160px, 30vw, 400px);
  aspect-ratio: 16 / 9;
  height: auto;
}

/* 縦長 9:16 (1080×1920) */
.hero-visual.aspect-portrait {
  width: clamp(80px, 11vw, 148px);
  aspect-ratio: 9 / 16;
  height: auto;
}

.hero-video-wrapper {
  position: absolute; inset: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-glow);
  background: #000; /* 縦横比変換時の黒帯債 */
}

.hero-video {
  width: 100%; height: 100%;
  object-fit: contain; /* 縦横比を保ったまま全体を表示、余白は黒 */
  display: block;
  background: #000;
}

.hero-video-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(var(--accent-rgb),0.15), rgba(6,182,212,0.1));
  mix-blend-mode: overlay;
  pointer-events: none; /* ボタンに対してだけ有効化 */
}

/* ── Hero Fullscreen Button ─────────────────────── */
.hero-fs-btn {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(8, 8, 22, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  pointer-events: all;
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.22s var(--ease-spring);
  z-index: 10;
}

.hero-video-wrapper:hover .hero-fs-btn {
  opacity: 1;
  transform: scale(1);
}

.hero-fs-btn:hover {
  background: rgba(var(--accent-rgb), 0.55);
  border-color: rgba(var(--accent-rgb), 0.5);
  color: white;
  transform: scale(1.1);
  box-shadow: 0 0 18px rgba(var(--accent-rgb), 0.4);
}

.hero-fs-btn:active {
  transform: scale(0.93);
}

/* フルスクリーン中の映像スタイル (.is-fullscreen は app.js 経由で付与) */
.hero-video-wrapper.is-fullscreen {
  background: #000;
  border-radius: 0;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-video-wrapper.is-fullscreen .hero-video {
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: contain; /* フルスクリーン時はネイティブの縦横比で全画面に収める（はみ出さない） */
  background: #000;
}

/* フルスクリーン中はUIで選択したアスペクト比の切り抜きを解除して動画全体を見せる */
.hero-video-wrapper.aspect-square.is-fullscreen .hero-video,
.hero-video-wrapper.aspect-landscape.is-fullscreen .hero-video,
.hero-video-wrapper.aspect-portrait.is-fullscreen .hero-video {
  aspect-ratio: auto;
}

/* フルスクリーン中はオーバーレイグラデーションを消す */
.hero-video-wrapper.is-fullscreen .hero-video-overlay {
  background: transparent;
}

/* フルスクリーン中はボタンを常時表示 */
.hero-video-wrapper.is-fullscreen .hero-fs-btn {
  opacity: 1;
  transform: scale(1);
}

.hero-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(var(--accent-rgb),0.2);
  animation: pulse-ring 3s ease-in-out infinite;
  pointer-events: none;
}

.hero-ring-1 {
  width: 130%; height: 130%;
  top: -15%; left: -15%;
  animation-delay: 0s;
}

.hero-ring-2 {
  width: 160%; height: 160%;
  top: -30%; left: -30%;
  animation-delay: 1.5s;
  border-color: rgba(6,182,212,0.12);
}

/* ── Genre Tags ─────────────────────────────────── */
.genre-section {
  padding: 0 40px 28px;
}

.genre-tags {
  display: flex; gap: 10px;
  flex-wrap: wrap;
}

.genre-tag {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 7px 18px;
  border-radius: 40px;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  background: rgba(255,255,255,0.03);
  transition: all 0.2s var(--ease-smooth);
  letter-spacing: 0.03em;
}

.genre-tag:hover {
  border-color: var(--accent-purple);
  color: var(--text-primary);
  background: rgba(var(--accent-rgb),0.1);
}

.genre-tag.active {
  background: rgba(var(--accent-rgb),0.18);
  border-color: rgba(var(--accent-rgb),0.4);
  color: var(--text-primary);
  box-shadow: 0 0 16px rgba(var(--accent-rgb),0.2);
}

/* ── Gallery Section ────────────────────────────── */
.gallery-section {
  padding: 0 40px 40px;
}

.section-header {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 24px;
}

.section-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ── Track Grid ─────────────────────────────────── */
.track-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

/* ── Track Card ─────────────────────────────────── */
.track-card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.28s var(--ease-smooth);
  box-shadow: var(--shadow-card);
  animation: fadeInUp 0.5s var(--ease-smooth) both;
}

.track-card:hover {
  transform: translateY(-6px) scale(1.015);
  border-color: var(--border-glow);
  box-shadow: 0 16px 48px rgba(0,0,0,0.6), 0 0 32px rgba(var(--accent-rgb),0.2);
}

.track-card.playing {
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 2px rgba(var(--accent-rgb),0.3), 0 16px 48px rgba(0,0,0,0.6), 0 0 40px rgba(var(--accent-rgb),0.25);
}

/* ── Add New Track Card ──────────────────────────── */
.add-card {
  border: 1.5px dashed rgba(var(--accent-rgb),0.3);
  background: transparent;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
  position: relative;
}

.add-card:hover {
  border-color: rgba(var(--accent-rgb),0.7);
  background: rgba(var(--accent-rgb),0.06);
  box-shadow: 0 0 32px rgba(var(--accent-rgb),0.15), 0 8px 24px rgba(0,0,0,0.3);
}

.add-card-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px 16px;
  text-align: center;
  pointer-events: none;
  width: 100%;
  box-sizing: border-box;
}

.add-card-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: rgba(var(--accent-rgb),0.1);
  border: 1.5px dashed rgba(var(--accent-rgb),0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-purple);
  transition: all 0.25s var(--ease-spring);
}

.add-card:hover .add-card-icon {
  background: rgba(var(--accent-rgb),0.18);
  border-style: solid;
  transform: scale(1.12) rotate(90deg);
  box-shadow: 0 0 20px rgba(var(--accent-rgb),0.3);
}

.add-card-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color 0.2s;
  letter-spacing: 0.01em;
}

.add-card:hover .add-card-label {
  color: var(--text-primary);
}

.add-card-sub {
  font-size: 0.73rem;
  color: var(--text-muted);
  line-height: 1.5;
  word-break: break-all;
  max-width: 100%;
}

/* Loading overlay inside add-card (reuses card-upload-overlay) */
.add-card .add-loading {
  border-radius: var(--radius-lg);
}

/* Drag-over state on the add-card */
.add-card.drag-over {
  border-color: var(--accent-cyan);
  background: rgba(6,182,212,0.08);
  box-shadow: 0 0 0 2px rgba(6,182,212,0.35), 0 0 40px rgba(6,182,212,0.2);
  transform: scale(1.02);
}

.add-card.drag-over .add-card-icon {
  background: rgba(6,182,212,0.2);
  border-color: rgba(6,182,212,0.6);
  border-style: solid;
  color: var(--accent-cyan);
  transform: scale(1.15) rotate(90deg);
  box-shadow: 0 0 24px rgba(6,182,212,0.4);
}

.add-card.drag-over .add-card-inner {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.2s;
}

/* Drop hint shown on drag-over */
.add-card-drop-hint {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 12px;
  color: var(--accent-cyan);
  opacity: 0;
  transform: scale(0.85);
  transition: all 0.22s var(--ease-spring);
  pointer-events: none;
}

.add-card-drop-hint span {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-shadow: 0 0 16px rgba(6,182,212,0.6);
}

.add-card.drag-over .add-card-drop-hint {
  opacity: 1;
  transform: scale(1);
}

/* ── Page-level Drop Overlay ───────────────────────── */
.page-drop-overlay {
  position: fixed; inset: 0; z-index: 800;
  background: rgba(5, 5, 20, 0.88);
  backdrop-filter: blur(12px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s var(--ease-smooth);
}

.page-drop-overlay.visible {
  opacity: 1;
  pointer-events: none; /* allow the drop event to pass through */
}

.page-drop-inner {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 18px;
  padding: 60px 80px;
  border: 2px dashed rgba(6,182,212,0.55);
  border-radius: var(--radius-xl);
  background: rgba(6,182,212,0.06);
  box-shadow: 0 0 60px rgba(6,182,212,0.15), inset 0 0 40px rgba(6,182,212,0.04);
  animation: pulse-border 2s ease-in-out infinite;
}

.page-drop-icon {
  color: var(--accent-cyan);
  filter: drop-shadow(0 0 16px rgba(6,182,212,0.6));
  animation: float-icon 2s ease-in-out infinite;
}

.page-drop-label {
  font-family: 'Outfit', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.page-drop-sub {
  font-size: 0.82rem;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

@keyframes pulse-border {
  0%, 100% { box-shadow: 0 0 60px rgba(6,182,212,0.15), inset 0 0 40px rgba(6,182,212,0.04); border-color: rgba(6,182,212,0.55); }
  50%       { box-shadow: 0 0 90px rgba(6,182,212,0.3),  inset 0 0 60px rgba(6,182,212,0.08); border-color: rgba(6,182,212,0.9); }
}

@keyframes float-icon {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}

.track-card-video-wrap {
  position: relative;
  width: 100%;
  padding-top: 65%;
  overflow: hidden;
  background: var(--bg-surface);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.track-card-video-wrap video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s var(--ease-smooth);
}

.track-card:hover .track-card-video-wrap video {
  transform: scale(1.06);
}

.track-card-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(10, 10, 30, 0.9) 100%);
  transition: opacity 0.3s;
}

.track-card-play-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.7);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(var(--accent-rgb),0.9);
  display: flex; align-items: center; justify-content: center;
  color: white;
  opacity: 0;
  transition: all 0.25s var(--ease-spring);
  box-shadow: 0 4px 20px rgba(var(--accent-rgb),0.5);
}

.track-card:hover .track-card-play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.track-card.playing .track-card-play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  background: var(--accent-cyan);
}

.track-card-badge {
  position: absolute; top: 10px; left: 10px;
  background: rgba(var(--accent-rgb),0.85);
  backdrop-filter: blur(8px);
  color: white;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
  opacity: 0;
  transition: opacity 0.25s;
}

.track-card.playing .track-card-badge {
  opacity: 1;
  background: rgba(16,185,129,0.85);
}

.track-card-number {
  position: absolute; top: 10px; right: 10px;
  color: rgba(255,255,255,0.5);
  font-size: 0.72rem;
  font-weight: 600;
  font-family: 'Outfit', sans-serif;
  transition: opacity 0.2s;
}

/* ── Card Edit Menu ─────────────────────────────── */
.card-menu-btn {
  position: absolute;
  top: 8px; right: 8px;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: rgba(10, 10, 25, 0.75);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.8);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  line-height: 1;
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.2s var(--ease-spring);
  z-index: 20;
  cursor: pointer;
  letter-spacing: 0;
}

.track-card:hover .card-menu-btn {
  opacity: 1;
  transform: scale(1);
}

.card-menu-btn:hover {
  background: rgba(var(--accent-rgb),0.6);
  border-color: rgba(var(--accent-rgb),0.5);
  color: white;
}

/* Hide number when menu is visible on hover */
.track-card:hover .track-card-number {
  opacity: 0;
}

.card-dropdown {
  position: absolute;
  top: 44px; right: 8px;
  min-width: 162px;
  background: rgba(15, 14, 35, 0.96);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(var(--accent-rgb),0.25);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.04);
  overflow: hidden;
  z-index: 100;
  opacity: 0;
  transform: translateY(-6px) scale(0.96);
  pointer-events: none;
  transition: all 0.18s var(--ease-spring);
}

.card-dropdown.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}


.card-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 11px 14px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s;
  font-family: inherit;
  letter-spacing: 0.01em;
}

.card-dropdown-item:hover {
  background: rgba(var(--accent-rgb),0.12);
  color: var(--text-primary);
}

.card-dropdown-item.danger:hover {
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
}

.card-dropdown-item svg {
  flex-shrink: 0;
  opacity: 0.7;
}

.card-dropdown-item:hover svg { opacity: 1; }

.card-dropdown-divider {
  height: 1px;
  background: rgba(255,255,255,0.06);
  margin: 2px 0;
}

/* Upload progress overlay on card */
.card-upload-overlay {
  position: absolute; inset: 0;
  background: rgba(8, 8, 25, 0.82);
  backdrop-filter: blur(4px);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 12px;
  z-index: 25;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
  border-radius: var(--radius-lg);
}

.card-upload-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.card-upload-spinner {
  width: 36px; height: 36px;
  border: 3px solid rgba(var(--accent-rgb),0.2);
  border-top-color: var(--accent-purple);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.card-upload-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

/* Toast notification */
.toast {
  position: fixed;
  bottom: calc(var(--player-height) + 24px);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(20, 18, 45, 0.96);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(var(--accent-rgb),0.3);
  border-radius: 40px;
  padding: 10px 22px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-primary);
  z-index: 500;
  opacity: 0;
  transition: all 0.3s var(--ease-spring);
  pointer-events: none;
  white-space: nowrap;
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.success { border-color: rgba(16,185,129,0.4); }
.toast.error   { border-color: rgba(239,68,68,0.4); color: #fca5a5; }

/* Track Card Info */
.track-card-info {
  padding: 14px 16px 16px;
}

.track-card-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.2s;
}

.track-card:hover .track-card-title { color: white; }
.track-card.playing .track-card-title { color: var(--accent-purple); }

.track-card-artist {
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track-card-footer {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 10px;
}

.track-card-genre {
  font-size: 0.7rem;
  color: var(--accent-cyan);
  font-weight: 500;
  background: rgba(6,182,212,0.08);
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid rgba(6,182,212,0.15);
}

.track-card-duration {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Equalizer bars on playing card */
.card-eq {
  display: flex; align-items: flex-end; gap: 2px;
  height: 16px;
}

.card-eq span {
  display: block;
  width: 3px;
  background: var(--accent-purple);
  border-radius: 2px;
  animation: eq-bar 0.8s ease-in-out infinite alternate;
}

.card-eq span:nth-child(1) { height: 6px;  animation-delay: 0.0s; }
.card-eq span:nth-child(2) { height: 12px; animation-delay: 0.15s; }
.card-eq span:nth-child(3) { height: 8px;  animation-delay: 0.3s; }
.card-eq span:nth-child(4) { height: 14px; animation-delay: 0.45s; }
.card-eq span:nth-child(5) { height: 5px;  animation-delay: 0.6s; }

/* ── Skeleton Loaders ───────────────────────────── */
.skeleton-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  height: 280px;
  animation: skeleton-pulse 1.8s ease-in-out infinite;
}

.skeleton-card::before {
  content: '';
  display: block;
  width: 100%; height: 65%;
  background: linear-gradient(90deg,
    rgba(255,255,255,0.03) 0%,
    rgba(255,255,255,0.07) 50%,
    rgba(255,255,255,0.03) 100%);
  background-size: 200% 100%;
  animation: skeleton-slide 1.8s ease-in-out infinite;
}

/* ── Player Bar ─────────────────────────────────── */
.player-bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 200;
  background: rgba(8, 8, 20, 0.82);
  backdrop-filter: blur(40px) saturate(1.8);
  -webkit-backdrop-filter: blur(40px) saturate(1.8);
  border-top: 1px solid var(--border-subtle);
  transform: translateY(100%);
  transition: transform 0.5s var(--ease-spring), box-shadow 0.3s;
}

.player-bar.visible {
  transform: translateY(0);
  box-shadow: 0 -4px 40px rgba(0,0,0,0.5), 0 -1px 0 var(--border-glow);
}

.player-bar-inner {
  display: flex; align-items: center;
  padding: 0 28px;
  height: var(--player-height);
  gap: 24px;
}

/* Player Thumb */
.player-track-info {
  display: flex; align-items: center; gap: 14px;
  flex: 0 0 280px;
  overflow: hidden;
}

.player-thumb-wrapper {
  position: relative;
  width: 60px; height: 60px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border-glow);
  box-shadow: 0 0 16px rgba(var(--accent-rgb),0.25);
}

.player-thumb {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

.player-thumb-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.35);
}

.mini-visualizer {
  display: flex; align-items: flex-end; gap: 2px;
  height: 18px;
  opacity: 0;
  transition: opacity 0.3s;
}

.mini-visualizer.active { opacity: 1; }

.mini-visualizer span {
  display: block;
  width: 3px;
  background: linear-gradient(to top, var(--accent-purple), var(--accent-cyan));
  border-radius: 2px;
  animation: eq-bar 0.6s ease-in-out infinite alternate;
}

.mini-visualizer span:nth-child(1) { height: 8px;  animation-delay: 0.0s; }
.mini-visualizer span:nth-child(2) { height: 14px; animation-delay: 0.1s; }
.mini-visualizer span:nth-child(3) { height: 10px; animation-delay: 0.2s; }
.mini-visualizer span:nth-child(4) { height: 16px; animation-delay: 0.3s; }
.mini-visualizer span:nth-child(5) { height: 6px;  animation-delay: 0.4s; }

.player-meta {
  display: flex; flex-direction: column; gap: 3px;
  overflow: hidden;
  flex: 1;
}

.player-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.player-artist {
  font-size: 0.76rem;
  color: var(--text-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.heart-btn {
  color: var(--text-muted);
  padding: 8px;
  border-radius: 50%;
  transition: all 0.2s var(--ease-spring);
  flex-shrink: 0;
}

.heart-btn:hover { color: var(--accent-pink); transform: scale(1.2); }
.heart-btn.liked { color: var(--accent-pink); }
.heart-btn.liked svg { fill: var(--accent-pink); }

/* Center Controls */
.player-controls-center {
  display: flex; flex-direction: column; align-items: center;
  flex: 1;
  gap: 10px;
}

.control-buttons {
  display: flex; align-items: center; gap: 6px;
}

.ctrl-btn {
  color: var(--text-muted);
  padding: 9px;
  border-radius: 50%;
  transition: all 0.2s var(--ease-smooth);
  display: flex; align-items: center; justify-content: center;
}

.ctrl-btn:hover { color: var(--text-primary); background: rgba(255,255,255,0.07); }
.ctrl-btn.active { color: var(--accent-purple); }

.play-btn {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: white;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s var(--ease-spring);
  box-shadow: 0 4px 20px rgba(var(--accent-rgb),0.4);
  position: relative;
}

.play-btn::after {
  content: '';
  position: absolute; inset: -4px;
  border-radius: 50%;
  border: 1px solid rgba(var(--accent-rgb),0.3);
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.3s;
}

.play-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(var(--accent-rgb),0.6);
}

.play-btn:hover::after {
  opacity: 1; transform: scale(1);
}

.play-btn:active { transform: scale(0.95); }

/* Progress Bar */
.progress-section {
  display: flex; align-items: center; gap: 12px;
  width: 100%;
}

.time-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 36px;
  font-weight: 500;
}

.time-label:last-child { text-align: right; }

.progress-track {
  flex: 1;
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  position: relative;
  cursor: pointer;
  transition: height 0.15s;
}

.progress-track:hover {
  height: 6px;
}

.progress-buffer {
  position: absolute; top: 0; left: 0;
  height: 100%;
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
  width: 0%;
  pointer-events: none;
}

.progress-fill {
  position: absolute; top: 0; left: 0;
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 4px;
  width: 0%;
  pointer-events: none;
  transition: width 0.1s linear;
}

.progress-thumb {
  position: absolute; top: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 14px; height: 14px;
  border-radius: 50%;
  background: white;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
  pointer-events: none;
  transition: transform 0.15s var(--ease-spring), left 0.1s linear;
}

.progress-track:hover .progress-thumb {
  transform: translate(-50%, -50%) scale(1);
}

/* Right Controls */
.player-controls-right {
  display: flex; align-items: center; gap: 8px;
  flex: 0 0 200px;
  justify-content: flex-end;
}

/* Volume Slider */
.volume-slider-wrap {
  width: 90px;
}

.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 4px;
  background: rgba(255,255,255,0.12);
  outline: none;
  cursor: pointer;
  transition: height 0.15s;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: white;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
  transition: transform 0.15s var(--ease-spring);
}

.volume-slider:hover::-webkit-slider-thumb { transform: scale(1.3); }

.volume-slider::-moz-range-thumb {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: white;
  cursor: pointer;
  border: none;
}

/* ── Volume Popup (vertical bar for narrow screens) ──────────── */
.volume-popup-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

/* 縦バーポップアップ: position:fixed でoverflow clippingを回避 */
.volume-vertical-popup {
  position: fixed;
  /* bottom/left はJSで動的に設定 */
  transform: translateY(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s var(--ease-smooth), transform 0.22s var(--ease-spring);
  z-index: 9999;
  /* 広い画面では非表示（JSで.openクラスも併用） */
  display: none;
}

/* 細い画面でのみ表示 */
@media (max-width: 860px) {
  .volume-vertical-popup {
    display: block;
  }
}

.volume-vertical-popup.open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.volume-popup-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 14px 10px 10px;
  background: rgba(12, 12, 28, 0.92);
  backdrop-filter: blur(20px) saturate(1.6);
  -webkit-backdrop-filter: blur(20px) saturate(1.6);
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6), 0 0 20px rgba(var(--accent-rgb), 0.15);
  min-width: 52px;
}

.volume-popup-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  min-width: 30px;
  text-align: center;
}

/* ポップアップ内ミュートボタン */
.volume-popup-mute-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  cursor: pointer;
  transition: all 0.2s var(--ease-smooth);
  flex-shrink: 0;
}

.volume-popup-mute-btn:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.12);
}

.volume-popup-mute-btn.muted {
  color: var(--accent-pink);
  background: rgba(236,72,153,0.12);
  border-color: rgba(236,72,153,0.3);
}


/* 縦スライダーのトラック */
/* カスタムタッチ領域（.volume-vertical-trackをタッチ可能にする） */
.volume-vertical-track {
  position: relative;
  width: 32px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none; /* iOSでのスクロール干渉を防止 */
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
}

/* トラック背景線（グレー） */
.volume-vertical-track::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 4px;
  height: 100%;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 4px;
}

/* フィル表示（グラデーション） */
.volume-vertical-fill {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  border-radius: 4px;
  background: linear-gradient(to top, #8b5cf6, #38bdf8);
  pointer-events: none;
  transition: height 0.08s linear;
  height: 80%; /* 初期値 80% */
}

/* input[type=range]はiOS Safariでslider-verticalが非対応のため廃止 */
/* タッチ操作はJSのtouchstart/touchmoveで直接trackを制御 */
.volume-vertical-slider {
  display: none;
}

/* Waveform Canvas */
.waveform-canvas {
  display: block;
  width: 100%;
  height: 32px;
  opacity: 0.7;
}

/* ── Animations ─────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes pulse-ring {
  0%   { transform: scale(1);    opacity: 0.3; }
  50%  { transform: scale(1.03); opacity: 0.15; }
  100% { transform: scale(1);    opacity: 0.3; }
}

@keyframes eq-bar {
  0%   { transform: scaleY(0.4); }
  100% { transform: scaleY(1.2); }
}

@keyframes skeleton-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

@keyframes skeleton-slide {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Hamburger Menu ── */
.hamburger-menu {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 20px;
  height: 14px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  z-index: 1001;
  margin-left: 12px;
}

.hamburger-menu span {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ── Mobile Nav Overlay ── */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(20px);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-nav-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-content {
  width: 100%;
  max-width: 320px;
  text-align: center;
  padding: 40px 20px;
  position: relative;
}

.mobile-nav-close {
  position: absolute;
  top: 0;
  right: 20px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 2.5rem;
  cursor: pointer;
  padding: 10px;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-bottom: 60px;
}

.mobile-nav-link {
  font-family: var(--font-accent);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.3s ease, transform 0.3s ease;
}

.mobile-nav-link.active {
  color: var(--accent-purple);
}

.mobile-nav-link:hover {
  color: var(--accent-purple);
  transform: scale(1.05);
}

.mobile-nav-footer {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ── Responsive ─────────────────────────────────── */

/* Tablet */
@media (max-width: 1100px) {
  .hero-section     { padding: 40px 32px 36px; }
  .hero-visual.aspect-landscape { width: 340px; height: 191px; }
  .hero-visual.aspect-square    { width: 220px; height: 220px; }
  .hero-visual.aspect-portrait  { width: 125px; height: 222px; }
  .gallery-section  { padding: 0 32px 40px; }
  .genre-section    { padding: 0 32px 24px; }
}

/* Large mobile / small tablet */
@media (max-width: 860px) {
  /* Header */
  .app-header       { padding: 0 16px; }
  .header-nav       { display: none; }
  .hamburger-menu   { display: flex; }
  .logo-text        { font-size: 0.96rem; letter-spacing: 0.02em; }
  .logo-text-sub    { display: none; }
  .search-bar input { width: 120px; }

  /* Hero */
  .hero-section  { flex-direction: column; padding: 28px 16px 20px; min-height: auto; }
  .hero-visual-container { width: 100%; max-width: 340px; align-items: center; }
  .hero-visual.aspect-landscape { width: 100%; height: 190px; }
  .hero-visual.aspect-square    { width: 200px; height: 200px; }
  .hero-visual.aspect-portrait  { width: 112px; height: 200px; }
  .hero-title    { font-size: clamp(1.8rem, 6vw, 2.8rem); }

  /* Gallery */
  .gallery-section { padding: 0 16px 40px; }
  .genre-section   { padding: 0 16px 16px; }

  /* Player bar — compress right side */
  .player-track-info      { flex: 0 0 180px; }
  .volume-slider-wrap     { display: none; }
  /* muteBtnはポップアップ付きのみ: volume-popup-wrapごと残す */
  .player-controls-right  { flex: 0 0 72px; }
  .fullscreen-modal .modal-video { width: 95vw; }
}

/* SP (smartphone) */
@media (max-width: 480px) {
  :root {
    --player-height: 120px;
  }

  /* ── Overflow protection ── */
  html, body {
    max-width: 100vw;
    overflow-x: hidden;
  }

  .app-container {
    max-width: 100vw;
    overflow-x: hidden;
  }

  /* ── Header ── */
  .app-header {
    padding: 0 10px;
    height: 52px;
    max-width: 100vw;
    overflow: hidden;
  }
  .header-left       { min-width: 0; flex-shrink: 1; overflow: hidden; }
  .header-right      { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
  .logo-icon-img     { width: 32px; height: 32px; flex-shrink: 0; }
  .logo              { gap: 6px; min-width: 0; overflow: hidden; }
  .logo-text         { font-size: 0.8rem; overflow: hidden; text-overflow: ellipsis; }
  .logo-text-sub     { display: none; }
  .reset-btn         { width: 32px; height: 32px; }
  .search-bar        { padding: 6px 10px; }
  .search-bar input  { width: 70px; font-size: 0.78rem; }
  .search-bar svg    { width: 13px; height: 13px; flex-shrink: 0; }

  .hero-section      { padding: 16px 12px 14px; gap: 16px; }
  .hero-eyebrow      { font-size: 0.68rem; margin-bottom: 8px; }
  .hero-title        { font-size: clamp(1.4rem, 6.5vw, 2rem); margin-bottom: 8px; word-break: break-word; }
  .hero-subtitle     { font-size: 0.8rem; margin-bottom: 14px; }
  .hero-btn          { padding: 10px 18px; font-size: 0.8rem; }
  .hero-visual-container { max-width: 100%; }
  .hero-visual.aspect-landscape { width: 100%; height: 140px; }
  .hero-visual.aspect-square    { width: 160px; height: 160px; }
  .hero-visual.aspect-portrait  { width: 90px; height: 160px; }
  .aspect-switcher   { padding: 4px 6px; gap: 4px; }
  .aspect-btn        { padding: 4px 8px; font-size: 0.66rem; gap: 4px; }
  .aspect-btn svg    { width: 13px; height: 13px; }

  /* ── Genre tags ── */
  .genre-section     { padding: 0 12px 12px; overflow: hidden; }
  .genre-tags        { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; scrollbar-width: none; padding-bottom: 4px; }
  .genre-tags::-webkit-scrollbar { display: none; }
  .genre-tag         { font-size: 0.72rem; padding: 5px 12px; white-space: nowrap; flex-shrink: 0; }

  /* ── Gallery ── */
  .gallery-section   { padding: 0 12px 130px; }
  .section-header    { padding: 0; }
  .track-grid        { grid-template-columns: 1fr; gap: 12px; }
  .section-title     { font-size: 1.05rem; }

  /* ── Player bar  — 2-row layout ── */
  .player-bar {
    max-width: 100vw;
    overflow-x: hidden;
    /* overflow-y は visible のまま → 縦バーポップアップを上方向に表示するため */
    overflow-y: visible;
  }

  .player-bar-inner {
    flex-flow: row wrap;
    padding: 8px 10px 6px;
    height: auto;
    gap: 0;
    align-items: center;
    max-width: 100%;
  }

  /* Row 1: thumb + meta + heart | right controls */
  .player-track-info {
    flex: 1 1 0;
    min-width: 0;
    gap: 8px;
    order: 0;
    max-width: calc(100% - 70px);
  }
  .player-meta          { min-width: 0; overflow: hidden; }
  .player-title         { font-size: 0.76rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
  .player-artist        { font-size: 0.66rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
  .player-thumb-wrapper { width: 40px; height: 40px; border-radius: 8px; flex-shrink: 0; }
  .heart-btn            { flex-shrink: 0; }

  .player-controls-right {
    flex: 0 0 auto;
    order: 1;
    gap: 2px;
  }
  .volume-slider-wrap   { display: none; }
  /* volume-popup-wrap (音量ボタン+縦バー) は表示する */

  /* Row 2: center controls spanning full width */
  .player-controls-center {
    flex: 0 0 100%;
    order: 2;
    gap: 4px;
    padding: 4px 0 2px;
    max-width: 100%;
    overflow: hidden;
  }
  .control-buttons { gap: 2px; }
  .play-btn        { width: 36px; height: 36px; }
  .play-btn svg    { width: 17px; height: 17px; }
  .ctrl-btn        { padding: 5px; }
  .ctrl-btn svg    { width: 15px; height: 15px; }

  .progress-section { gap: 4px; max-width: 100%; }
  .progress-track   { flex: 1; min-width: 0; }
  .time-label       { font-size: 0.62rem; min-width: 26px; flex-shrink: 0; }

  /* Waveform strip thinner on SP */
  .waveform-canvas  { height: 16px; }

  /* ── Add card ── */
  .add-card-sub      { font-size: 0.68rem; word-break: break-all; }
  .add-card-label    { font-size: 0.82rem; }

  /* ── Fullscreen modal ── */
  .fullscreen-modal .modal-video { width: 100vw; max-width: 100%; }
}

/* Very small phones */
@media (max-width: 360px) {
  .logo-text      { display: none; }
  .search-bar     { display: none; }
  .track-grid     { grid-template-columns: 1fr; }
  .hero-visual    { display: none; }
  .hero-title     { font-size: clamp(1.3rem, 7vw, 1.8rem); }
}

/* ── タッチデバイス (hover不可) 向け ─────────────────── */
/* スマホではhoverが効かないためボタン類を常時表示 */
@media (hover: none) {
  /* カードのメニューボタン (⋯) を常時表示 */
  .card-menu-btn {
    opacity: 1;
    transform: scale(1);
  }

  /* カードのプレイボタンを常時表示 */
  .track-card-play-btn {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }

  /* ヒーロー動画のフルスクリーンボタンを常時表示 */
  .hero-fs-btn {
    opacity: 1;
    transform: scale(1);
  }

  /* カード番号はメニューボタンと重なるので非表示 */
  .track-card-number {
    display: none;
  }
}

/* ======================================================
   PLAYLIST FEATURE STYLES
   ====================================================== */

/* ── Library View ─────────────────────────────────── */
.library-view {
  position: relative; z-index: 10;
  padding: 0 40px 80px;
  animation: fadeInUp 0.45s var(--ease-smooth) both;
}

.library-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0 40px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.library-header-text { flex: 1; min-width: 0; }

.library-title {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 10px 0 8px;
}

.library-subtitle {
  font-size: 0.92rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.create-playlist-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: rgba(var(--accent-rgb), 0.15);
  border: 1px solid rgba(var(--accent-rgb), 0.35);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 40px;
  letter-spacing: 0.02em;
  transition: all 0.25s var(--ease-spring);
  flex-shrink: 0;
}

.create-playlist-btn:hover {
  background: rgba(var(--accent-rgb), 0.28);
  border-color: rgba(var(--accent-rgb), 0.6);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(var(--accent-rgb), 0.25);
}

.create-playlist-btn:active { transform: scale(0.97); }

/* ── Playlist Grid ────────────────────────────────── */
.playlist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 22px;
}

.playlist-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 80px 24px;
  text-align: center;
  color: var(--text-muted);
  border: 1.5px dashed rgba(var(--accent-rgb), 0.2);
  border-radius: var(--radius-xl);
}

.playlist-empty-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: rgba(var(--accent-rgb), 0.08);
  border: 1.5px dashed rgba(var(--accent-rgb), 0.3);
  display: flex; align-items: center; justify-content: center;
  color: rgba(var(--accent-rgb), 0.6);
}

.playlist-empty-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.playlist-empty-sub {
  font-size: 0.82rem;
  color: var(--text-muted);
  max-width: 280px;
  line-height: 1.6;
}

/* ── Playlist Card ────────────────────────────────── */
.playlist-card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.28s var(--ease-smooth);
  box-shadow: var(--shadow-card);
  animation: fadeInUp 0.45s var(--ease-smooth) both;
}

.playlist-card:hover {
  transform: translateY(-6px) scale(1.015);
  border-color: var(--border-glow);
  box-shadow: 0 16px 48px rgba(0,0,0,0.6), 0 0 32px rgba(var(--accent-rgb),0.2);
}

.playlist-card-cover {
  width: 100%;
  padding-top: 100%;
  position: relative;
  overflow: hidden;
  background: var(--bg-surface);
}

.playlist-card-cover-grid {
  position: absolute; inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 1px;
  background: rgba(0,0,0,0.4);
}

.playlist-card-cover-grid video,
.playlist-card-cover-grid .cover-placeholder {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

.playlist-card-cover-single {
  position: absolute; inset: 0;
}

.playlist-card-cover-single video {
  width: 100%; height: 100%;
  object-fit: cover;
}

.cover-placeholder {
  background: var(--bg-elevated);
}

.playlist-card-cover-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 45%, rgba(8,8,25,0.85) 100%);
  pointer-events: none;
}

.playlist-card-color-bar {
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px;
}

.playlist-card-play-btn {
  position: absolute;
  bottom: 12px; right: 12px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(var(--accent-rgb), 0.9);
  display: flex; align-items: center; justify-content: center;
  color: white;
  opacity: 0;
  transform: scale(0.75) translateY(8px);
  transition: all 0.25s var(--ease-spring);
  box-shadow: 0 4px 20px rgba(var(--accent-rgb),0.5);
}

.playlist-card:hover .playlist-card-play-btn {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.playlist-card-info {
  padding: 14px 16px 16px;
}

.playlist-card-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
  transition: color 0.2s;
}

.playlist-card:hover .playlist-card-name { color: white; }

.playlist-card-count {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.playlist-card-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Playlist Detail View ─────────────────────────── */
.playlist-detail-view {
  position: relative; z-index: 10;
  padding: 0 40px 80px;
  animation: fadeInUp 0.4s var(--ease-smooth) both;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 10px 0;
  margin-top: 14px;
  transition: color 0.2s;
  letter-spacing: 0.02em;
}

.back-btn:hover { color: var(--text-primary); }
.back-btn svg { transition: transform 0.2s; }
.back-btn:hover svg { transform: translateX(-3px); }

.playlist-detail-meta {
  display: flex;
  align-items: flex-end;
  gap: 28px;
  padding: 28px 0 32px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.playlist-detail-cover {
  width: 160px;
  height: 160px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border-glow);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5), 0 0 30px rgba(var(--accent-rgb),0.15);
  position: relative;
  background: var(--bg-elevated);
}

.playlist-detail-cover video {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

.playlist-detail-cover-grid {
  position: absolute; inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 1px;
  background: rgba(0,0,0,0.4);
}

.playlist-detail-cover-grid video,
.playlist-detail-cover-grid .cover-placeholder {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

.playlist-detail-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.playlist-detail-name {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  line-height: 1.1;
}

.playlist-detail-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  line-height: 1.5;
}

.playlist-detail-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.playlist-detail-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 0 24px;
  flex-wrap: wrap;
}

.playlist-play-all-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: var(--accent-cyan);
  color: white;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 12px 26px;
  border-radius: 40px;
  letter-spacing: 0.02em;
  transition: all 0.25s var(--ease-spring);
  box-shadow: 0 4px 24px rgba(6,182,212,0.35);
}

.playlist-play-all-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 36px rgba(6,182,212,0.5);
}

.playlist-play-all-btn:active { transform: scale(0.97); }

.playlist-edit-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 11px 20px;
  border-radius: 40px;
  letter-spacing: 0.02em;
  transition: all 0.22s var(--ease-smooth);
}

.playlist-edit-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.2);
}

.playlist-delete-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: #f87171;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 11px 20px;
  border-radius: 40px;
  letter-spacing: 0.02em;
  transition: all 0.22s var(--ease-smooth);
}

.playlist-delete-btn:hover {
  background: rgba(239, 68, 68, 0.18);
  border-color: rgba(239, 68, 68, 0.5);
  box-shadow: 0 4px 18px rgba(239, 68, 68, 0.2);
}

/* ── Playlist Track List ──────────────────────────── */
.playlist-track-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.playlist-track-row {
  display: grid;
  grid-template-columns: 28px 56px 1fr auto 80px 44px;
  align-items: center;
  gap: 14px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all 0.18s var(--ease-smooth);
  cursor: pointer;
  position: relative;
}

.playlist-track-row:hover {
  background: rgba(255,255,255,0.04);
  border-color: var(--border-subtle);
}

.playlist-track-row.playing {
  background: rgba(var(--accent-rgb), 0.08);
  border-color: rgba(var(--accent-rgb), 0.2);
}

.playlist-track-num {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  text-align: right;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

.playlist-track-row:hover .playlist-track-num,
.playlist-track-row.playing .playlist-track-num { opacity: 0; }

.playlist-track-play-icon {
  position: absolute;
  left: 12px;
  width: 28px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary);
  opacity: 0;
  transition: opacity 0.15s;
}

.playlist-track-row:hover .playlist-track-play-icon,
.playlist-track-row.playing .playlist-track-play-icon { opacity: 1; }

.playlist-track-row.playing .playlist-track-play-icon { color: var(--accent-purple); }

.playlist-track-thumb {
  width: 56px; height: 40px;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
}

.playlist-track-thumb video {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

.playlist-track-meta {
  min-width: 0;
  overflow: hidden;
}

.playlist-track-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 3px;
  transition: color 0.2s;
}

.playlist-track-row:hover .playlist-track-title { color: white; }
.playlist-track-row.playing .playlist-track-title { color: var(--accent-purple); }

.playlist-track-artist {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.playlist-track-genre-badge {
  font-size: 0.68rem;
  color: var(--accent-cyan);
  font-weight: 500;
  background: rgba(6,182,212,0.08);
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid rgba(6,182,212,0.15);
  white-space: nowrap;
  justify-self: center;
}

.playlist-track-duration {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}

.playlist-track-remove {
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid transparent;
  transition: all 0.18s;
  flex-shrink: 0;
  opacity: 0;
  justify-self: center;
}

.playlist-track-row:hover .playlist-track-remove { opacity: 1; }

.playlist-track-remove:hover {
  color: #f87171;
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.35);
}

.playlist-tracks-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 60px 24px;
  color: var(--text-muted);
  text-align: center;
  border: 1.5px dashed rgba(var(--accent-rgb), 0.15);
  border-radius: var(--radius-xl);
  margin-top: 12px;
}

.playlist-tracks-empty p:first-child {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.playlist-tracks-empty p:last-child {
  font-size: 0.8rem;
  line-height: 1.6;
}

/* ── Playlist Modal ───────────────────────────────── */
.playlist-modal-backdrop {
  position: fixed; inset: 0;
  z-index: 600;
  background: rgba(5, 5, 20, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: modalFadeIn 0.22s var(--ease-smooth) both;
}

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

.playlist-modal {
  background: var(--bg-elevated);
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 80px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.04);
  width: 100%;
  max-width: 440px;
  animation: modalSlideUp 0.28s var(--ease-spring) both;
  overflow: hidden;
}

@keyframes modalSlideUp {
  from { transform: translateY(24px) scale(0.97); opacity: 0; }
  to   { transform: translateY(0) scale(1); opacity: 1; }
}

.playlist-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px 18px;
  border-bottom: 1px solid var(--border-subtle);
}

.playlist-modal-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.playlist-modal-close {
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  transition: all 0.18s;
  cursor: pointer;
}

.playlist-modal-close:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.09);
}

.playlist-modal-body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-height: 60vh;
  overflow-y: auto;
}

.playlist-modal-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.playlist-modal-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.required { color: var(--accent-pink); }

.playlist-modal-input {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: all 0.2s;
  outline: none;
}

.playlist-modal-input:focus {
  border-color: var(--accent-purple);
  background: rgba(var(--accent-rgb), 0.06);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.12);
}

.playlist-modal-input::placeholder { color: var(--text-muted); }

.playlist-color-picker {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.color-swatch {
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 2px solid transparent;
  transition: all 0.2s var(--ease-spring);
  cursor: pointer;
  position: relative;
}

.color-swatch:hover {
  transform: scale(1.18);
}

.color-swatch.active {
  border-color: white;
  transform: scale(1.12);
  box-shadow: 0 0 14px rgba(255,255,255,0.3);
}

.playlist-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 24px 20px;
  border-top: 1px solid var(--border-subtle);
}

.playlist-modal-cancel {
  padding: 10px 20px;
  border-radius: 40px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-subtle);
  transition: all 0.18s;
  cursor: pointer;
  font-family: inherit;
}

.playlist-modal-cancel:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.1);
}

.playlist-modal-create {
  padding: 10px 22px;
  border-radius: 40px;
  font-size: 0.85rem;
  font-weight: 600;
  background: rgba(var(--accent-rgb), 0.18);
  border: 1px solid rgba(var(--accent-rgb), 0.4);
  color: var(--text-primary);
  letter-spacing: 0.02em;
  transition: all 0.22s var(--ease-spring);
  cursor: pointer;
  font-family: inherit;
}

.playlist-modal-create:hover {
  background: rgba(var(--accent-rgb), 0.32);
  border-color: rgba(var(--accent-rgb), 0.65);
  transform: translateY(-1px);
  box-shadow: 0 4px 18px rgba(var(--accent-rgb), 0.3);
}

.playlist-modal-create:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Add-to-playlist items inside modal */
.add-to-playlist-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 60px;
}

.add-playlist-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.18s;
}

.add-playlist-item:hover {
  background: rgba(var(--accent-rgb), 0.09);
  border-color: rgba(var(--accent-rgb), 0.2);
}

.add-playlist-item.already-added {
  opacity: 0.45;
  cursor: default;
  pointer-events: none;
}

.add-playlist-item-cover {
  width: 40px; height: 40px;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  position: relative;
}

.add-playlist-item-cover video {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

.add-playlist-item-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.add-playlist-item-name {
  flex: 1;
  min-width: 0;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.add-playlist-item-count {
  font-size: 0.73rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.add-playlist-no-playlists {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 24px 0;
  line-height: 1.7;
}

/* ── Responsive (Playlist) ────────────────────────── */
@media (max-width: 768px) {
  .library-view,
  .playlist-detail-view { padding: 0 20px 80px; }

  .library-header { padding: 32px 0 28px; }

  .playlist-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 14px;
  }

  .playlist-detail-cover { width: 120px; height: 120px; }
  .playlist-detail-name { font-size: 1.5rem; }

  .playlist-track-row {
    grid-template-columns: 22px 48px 1fr 52px 36px;
    gap: 10px;
  }
  .playlist-track-genre-badge { display: none; }
  .playlist-track-remove { opacity: 1; }
}

@media (max-width: 480px) {
  .playlist-track-row {
    grid-template-columns: 20px 44px 1fr 36px;
  }
  .playlist-track-duration { display: none; }
  .playlist-modal { max-width: 100%; border-radius: var(--radius-lg); }
}

/* ======================================================
   PWA & OFFLINE STYLES
   ====================================================== */

.offline-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #f43f5e;
  color: white;
  text-align: center;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(244, 63, 94, 0.4);
  transform: translateY(-100%);
  transition: transform 0.3s var(--ease-spring);
}

.offline-banner.show {
  transform: translateY(0);
}

.install-prompt {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(150%);
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  z-index: 9998;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.6), 0 0 20px rgba(var(--accent-rgb), 0.2);
  transition: transform 0.4s var(--ease-spring), opacity 0.4s;
  width: calc(100% - 32px);
  max-width: 400px;
  opacity: 0;
}

.install-prompt.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.install-prompt-content {
  display: flex;
  align-items: center;
  gap: 16px;
}

.install-prompt-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-surface);
}

.install-prompt-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.install-prompt-text h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.install-prompt-text p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.install-prompt-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.install-cancel-btn {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.install-cancel-btn:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
}

.install-confirm-btn {
  padding: 8px 20px;
  background: var(--gradient-primary);
  border: none;
  color: white;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.3);
  transition: all 0.2s;
}

.install-confirm-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(var(--accent-rgb), 0.5);
}

/* Make sure player bar stays above safe area inset bottom for modern devices */
.player-bar {
  padding-bottom: env(safe-area-inset-bottom);
}