/* ============================================================
   playlist-spotify.css — polished playlist UI
   ============================================================ */

:root {
  --pl-bg: #0a0b10;
  --pl-surface: rgba(255, 255, 255, 0.04);
  --pl-surface-hi: rgba(255, 255, 255, 0.08);
  --pl-line: rgba(255, 255, 255, 0.09);
  --pl-text: #f4f5f7;
  --pl-mute: #9ba1ad;
  --pl-accent: var(--primary, #1ed760);
  --pl-accent-hi: #1ed760;
  --pl-on-accent: #051b0d;
  --pl-danger: #ff6b6b;
  --pl-radius: 16px;
  --pl-radius-sm: 10px;
  --pl-shadow: 0 12px 36px rgba(0, 0, 0, 0.5);
  --pl-shadow-hi: 0 24px 60px rgba(0, 0, 0, 0.65);
  --pl-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Hero header ---------- */
.playlist-hero {
  padding: 110px 0 24px;
  background:
    radial-gradient(1000px 300px at 15% -20%, rgba(30, 215, 96, 0.16), transparent 60%),
    radial-gradient(800px 260px at 90% 0%, rgba(120, 100, 255, 0.14), transparent 60%);
  border-bottom: 1px solid var(--pl-line);
}
.playlist-hero-inner {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 28px;
}
.playlist-hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.playlist-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  padding: 0 15px;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 999px;
  color: var(--pl-text);
  background: rgba(255,255,255,.055);
  font: inherit;
  font-size: .88rem;
  font-weight: 650;
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease, background .18s ease, transform .18s ease;
}
.playlist-back-btn:hover { transform: translateY(-1px); color: #07130b; border-color: var(--pl-accent); background: var(--pl-accent); }
.playlist-back-btn:focus-visible { outline: 2px solid var(--pl-accent); outline-offset: 3px; }
.playlist-hero-note { display: inline-flex; align-items: center; gap: 8px; color: #a6b2aa; font-size: .82rem; }
.playlist-hero-note i { color: var(--pl-accent); }
.playlist-hero-text { max-width: 680px; }
.playlist-hero-text::after {
  content: "";
  display: block;
  width: 52px;
  height: 3px;
  margin-top: 20px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--pl-accent), rgba(30,215,96,0));
}
.playlist-hero-eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pl-accent);
  font-weight: 700;
  margin-bottom: 8px;
}
.playlist-hero-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--pl-text);
  margin: 0;
}
.playlist-hero-sub {
  color: var(--pl-mute);
  margin: 8px 0 0;
  max-width: 520px;
  font-size: 0.98rem;
  line-height: 1.5;
}
.btn-hero-create {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border: 0;
  border-radius: 999px;
  background: var(--pl-accent);
  color: var(--pl-on-accent);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(30, 215, 96, 0.28);
  transition: transform 0.15s var(--pl-ease), filter 0.15s var(--pl-ease), box-shadow 0.2s var(--pl-ease);
}
.btn-hero-create:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(30, 215, 96, 0.38);
}
.btn-hero-create:active { transform: translateY(0); }

/* ---------- Main ---------- */
.playlist-main { padding: 32px 0 160px; }
.playlist-main > .playlist-grid { padding-bottom: 24px; }

/* ---------- Playlist grid ---------- */
.playlist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 22px;
  margin-top: 8px;
}

/* ---------- Playlist card ---------- */
.playlist-card-spotify {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--pl-radius);
  overflow: hidden;
  cursor: pointer;
  background: linear-gradient(160deg, #262a35 0%, #14161c 100%);
  box-shadow: var(--pl-shadow);
  transition: transform 0.28s var(--pl-ease), box-shadow 0.28s var(--pl-ease);
  isolation: isolate;
  outline: none;
}
.playlist-card-spotify:hover,
.playlist-card-spotify:focus-visible {
  transform: translateY(-6px);
  box-shadow: var(--pl-shadow-hi);
}
.playlist-card-spotify:focus-visible {
  outline: 2px solid var(--pl-accent);
  outline-offset: 4px;
}

.playlist-cover {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--pl-ease), filter 0.3s var(--pl-ease);
}
.playlist-card-spotify:hover .playlist-cover {
  transform: scale(1.06);
  filter: brightness(0.85);
}

.playlist-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 18px;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.88) 0%, rgba(0, 0, 0, 0.35) 55%, rgba(0, 0, 0, 0.05) 100%);
}

.playlist-info { color: #fff; }
.playlist-name {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.playlist-details {
  font-size: 0.82rem;
  opacity: 0.78;
  margin-bottom: 14px;
}

.playlist-actions {
  display: flex;
  gap: 8px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.25s var(--pl-ease), transform 0.25s var(--pl-ease);
}
.playlist-card-spotify:hover .playlist-actions,
.playlist-card-spotify:focus-within .playlist-actions {
  opacity: 1;
  transform: translateY(0);
}

.playlist-action-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(20, 20, 24, 0.72);
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: transform 0.15s var(--pl-ease), background 0.15s var(--pl-ease), border-color 0.15s var(--pl-ease);
}
.playlist-action-btn:hover {
  background: rgba(40, 40, 46, 0.9);
  border-color: rgba(255, 255, 255, 0.3);
  transform: scale(1.06);
}
.playlist-action-btn:focus-visible {
  outline: 2px solid var(--pl-accent);
  outline-offset: 2px;
}
.playlist-action-btn.play {
  background: var(--pl-accent);
  border-color: var(--pl-accent);
  color: var(--pl-on-accent);
  box-shadow: 0 6px 18px rgba(30, 215, 96, 0.4);
}
.playlist-action-btn.play:hover {
  background: var(--pl-accent-hi);
  transform: scale(1.08);
}

/* ---------- Create playlist card ---------- */
.create-playlist-card {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--pl-radius);
  border: 1.5px dashed rgba(255, 255, 255, 0.18);
  background:
    radial-gradient(140% 100% at 50% 0%, rgba(30, 215, 96, 0.06), transparent 60%),
    var(--pl-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  cursor: pointer;
  transition: border-color 0.2s var(--pl-ease), background 0.2s var(--pl-ease), transform 0.2s var(--pl-ease);
}
.create-playlist-card:hover {
  border-color: rgba(30, 215, 96, 0.55);
  background:
    radial-gradient(140% 100% at 50% 0%, rgba(30, 215, 96, 0.12), transparent 60%),
    var(--pl-surface-hi);
  transform: translateY(-4px);
}
.create-playlist-card:focus-visible {
  outline: 2px solid var(--pl-accent);
  outline-offset: 4px;
}
.create-playlist-icon {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: rgba(30, 215, 96, 0.14);
  color: var(--pl-accent);
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  transition: transform 0.25s var(--pl-ease);
}
.create-playlist-card:hover .create-playlist-icon { transform: scale(1.08) rotate(90deg); }
.create-playlist-text {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--pl-text);
}

/* ---------- Empty state ---------- */
.empty-state-container { grid-column: 1 / -1; display: grid; place-items: center; padding: 40px 20px; }
.empty-state-content {
  max-width: 420px;
  text-align: center;
  padding: 40px 28px;
  border-radius: var(--pl-radius);
  border: 1px solid var(--pl-line);
  background: var(--pl-surface);
}
.empty-state-content h4 { color: var(--pl-text); margin: 8px 0 6px; font-weight: 700; }
.empty-state-content p { color: var(--pl-mute); margin: 0; font-size: 0.92rem; }
.guest-playlist-actions { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.guest-playlist-actions a { text-decoration: none; }

/* ---------- Fullscreen playlist view ---------- */
.playlist-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 1500;
  background:
    radial-gradient(1200px 400px at 10% 0%, rgba(30, 215, 96, 0.14), transparent 60%),
    radial-gradient(900px 400px at 90% 10%, rgba(120, 100, 255, 0.14), transparent 60%),
    rgba(6, 7, 12, 0.985);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s var(--pl-ease), visibility 0.25s var(--pl-ease);
}
.playlist-fullscreen.active { opacity: 1; visibility: visible; }

.playlist-fullscreen-scroll {
  height: 100%;
  overflow-y: auto;
  padding-bottom: 140px; /* leave room for player bar */
}

.close-fullscreen {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 3;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--pl-line);
  background: rgba(20, 20, 26, 0.72);
  color: var(--pl-text);
  display: grid;
  place-items: center;
  cursor: pointer;
  backdrop-filter: blur(10px);
  transition: transform 0.15s var(--pl-ease), background 0.15s var(--pl-ease);
}
.close-fullscreen:hover { transform: scale(1.06); background: rgba(40, 40, 50, 0.9); }
.close-fullscreen:focus-visible { outline: 2px solid var(--pl-accent); outline-offset: 2px; }

.playlist-header {
  display: flex;
  align-items: flex-end;
  gap: 28px;
  padding: 90px clamp(20px, 5vw, 64px) 32px;
  max-width: 1280px;
  margin: 0 auto;
}

.playlist-cover-wrap {
  position: relative;
  flex: none;
  width: 220px;
  height: 220px;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
}
.playlist-cover-large {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.playlist-cover-glow {
  position: absolute;
  inset: auto 0 -20px 0;
  height: 60px;
  background: radial-gradient(60% 100% at 50% 0, rgba(0, 0, 0, 0.5), transparent 70%);
  pointer-events: none;
}

.playlist-header-info { color: var(--pl-text); min-width: 0; flex: 1; }
.playlist-header-eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pl-accent);
  font-weight: 700;
  margin-bottom: 10px;
}
.playlist-title-large {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 12px;
  word-break: break-word;
}
.playlist-stats {
  font-size: 0.95rem;
  color: var(--pl-mute);
  margin-bottom: 22px;
}

.playlist-header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.header-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 0;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: transform 0.15s var(--pl-ease), filter 0.15s var(--pl-ease), background 0.15s var(--pl-ease);
}
.header-action-btn.play {
  background: var(--pl-accent);
  color: var(--pl-on-accent);
  box-shadow: 0 10px 26px rgba(30, 215, 96, 0.35);
}
.header-action-btn.play:hover { filter: brightness(1.08); transform: translateY(-2px); }
.header-action-btn.secondary {
  background: var(--pl-surface-hi);
  color: var(--pl-text);
  border: 1px solid var(--pl-line);
}
.header-action-btn.secondary:hover { background: rgba(255, 255, 255, 0.12); transform: translateY(-2px); }
.header-action-btn.secondary.danger { color: var(--pl-danger); }
.header-action-btn.secondary.danger:hover {
  background: rgba(255, 107, 107, 0.14);
  border-color: rgba(255, 107, 107, 0.4);
}
.header-action-btn:focus-visible { outline: 2px solid var(--pl-accent); outline-offset: 3px; }

/* ---------- Fullscreen track list ---------- */
.playlist-tracks-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 64px) 40px;
}
.playlist-track {
  display: grid;
  grid-template-columns: 40px 1fr auto auto;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  border-radius: 10px;
  color: var(--pl-text);
  cursor: pointer;
  transition: background 0.15s var(--pl-ease);
  border: 1px solid transparent;
}
.playlist-track:hover { background: var(--pl-surface-hi); }
.playlist-track.active {
  background: rgba(30, 215, 96, 0.1);
  border-color: rgba(30, 215, 96, 0.35);
}
.playlist-track.active .track-title { color: var(--pl-accent); }

.track-number {
  font-size: 0.9rem;
  color: var(--pl-mute);
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.track-info { min-width: 0; }
.playlist-track .track-title {
  font-weight: 600;
  font-size: 0.96rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.playlist-track .track-artist {
  font-size: 0.84rem;
  color: var(--pl-mute);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.track-duration {
  font-size: 0.85rem;
  color: var(--pl-mute);
  font-variant-numeric: tabular-nums;
}
.playlist-track .track-actions {
  display: flex;
  gap: 6px;
  opacity: 0;
  transition: opacity 0.2s var(--pl-ease);
}
.playlist-track:hover .track-actions,
.playlist-track:focus-within .track-actions { opacity: 1; }

.track-action-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 0;
  background: transparent;
  color: var(--pl-mute);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.15s var(--pl-ease), color 0.15s var(--pl-ease);
}
.track-action-btn:hover { background: var(--pl-surface-hi); color: var(--pl-text); }
.track-action-btn:focus-visible { outline: 2px solid var(--pl-accent); outline-offset: 2px; }

/* ---------- Notification ---------- */
.playlist-notification {
  position: fixed;
  top: 22px;
  right: 22px;
  z-index: 9999;
  padding: 13px 20px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.92rem;
  color: #fff;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  animation: plSlideIn 0.28s var(--pl-ease);
}
.playlist-notification-success {
  background: rgba(30, 215, 96, 0.92);
  border: 1px solid rgba(30, 215, 96, 0.7);
  color: var(--pl-on-accent);
}
.playlist-notification-error {
  background: rgba(255, 107, 107, 0.92);
  border: 1px solid rgba(255, 107, 107, 0.7);
}
@keyframes plSlideIn {
  from { transform: translateX(24px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ---------- Current playlist inline section (legacy fallback) ---------- */
.current-playlist-section { margin-top: 24px; }
.current-playlist-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.btn-ghost {
  background: var(--pl-surface);
  border: 1px solid var(--pl-line);
  color: var(--pl-text);
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.15s var(--pl-ease);
}
.btn-ghost:hover { background: var(--pl-surface-hi); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .playlist-header {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 78px;
  }
  .playlist-cover-wrap { width: 180px; height: 180px; }
  .playlist-header-actions { width: 100%; }
  .header-action-btn { flex: 1 1 auto; justify-content: center; }
  .playlist-actions { opacity: 1; transform: none; }
}

@media (max-width: 640px) {
  .playlist-hero { padding-top: 96px; }
  .playlist-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
  .playlist-actions { opacity: 1; transform: none; }
  .playlist-cover-wrap { width: 140px; height: 140px; }
  .playlist-title-large { font-size: 2rem; }
  .playlist-hero { padding-inline: 4px; }
  .playlist-hero-sub { font-size: 0.9rem; }
  .playlist-main { padding-top: 22px; }
  .playlist-hero-inner { gap: 24px; }
  .playlist-hero-note { font-size: .74rem; }
  .playlist-back-btn { min-height: 40px; padding-inline: 13px; }
  .playlist-track {
    grid-template-columns: 30px 1fr auto;
    padding: 10px 12px;
    gap: 12px;
  }
  .track-duration { display: none; }
  .track-actions { opacity: 1; }
}

/* ---------- Accessibility ---------- */
@media (prefers-reduced-motion: reduce) {
  .playlist-card-spotify,
  .playlist-cover,
  .playlist-actions,
  .playlist-action-btn,
  .header-action-btn,
  .close-fullscreen {
    transition: none !important;
    animation: none !important;
  }
  .playlist-card-spotify:hover { transform: none; }
  .playlist-card-spotify:hover .playlist-cover { transform: none; }
}

/* ---------- Legacy resets (hide old markup) ---------- */
#playlistsContainer,
.playlist-card { display: none !important; }
/* The playlist library also runs as a view inside index.html. */
.playlist-view { display: none; min-height: 100vh; padding-bottom: 120px; }
body.show-playlists .fixed-header,
body.show-playlists .music-section { display: none !important; }
body.show-playlists .playlist-view { display: block; }
body.show-playlists .profile-container { z-index: 1200; }