:root {
   --clr-bg-root:      #090909;   
  --clr-bg-sidebar:   #111111;   
  --clr-bg-main:      #0f0f0f;    
  --clr-bg-card:      #181818;   
  --clr-bg-card-h:    #222222;    
  --clr-bg-player:    #0a0a0a;   
  --clr-bg-input:     #1a1a1a;    

  --clr-green:        #1db954;    
  --clr-green-hi:     #1ed760;    
  --clr-accent:       #7c5cfc;    
  --clr-accent-lo:    rgba(124,92,252,.15);

  --clr-txt-primary:  #ffffff;
  --clr-txt-secondary:#b3b3b3;
  --clr-txt-dim:      #535353;

  --clr-border:       rgba(255,255,255,.06);
  --clr-border-hi:    rgba(255,255,255,.12);

  /* Layout */
  --sidebar-w:        232px;
  --player-h:         90px;
  --topbar-h:         72px;

  /* Shape */
  --r-sm:  6px;
  --r-md:  10px;
  --r-lg:  16px;
  --r-xl:  24px;

  /* Motion */
  --ease:        cubic-bezier(.4,0,.2,1);
  --dur-fast:    120ms;
  --dur-med:     220ms;
  --dur-slow:    360ms;
}
*::before, 
*::after { 
  box-sizing: border-box; 
  margin: 0; padding: 0;
 }

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--clr-bg-root);
  color: var(--clr-txt-primary);
  min-height: 100svh;
  overflow: hidden; 
}

a  {
   text-decoration: none; 
   color: inherit;
   }
ul { 
  list-style: none; 
}
button { 
  border: none; 
  background: none;
  cursor: pointer; 
  color: inherit; 
  font-family: inherit; 
}
input  { 
  border: none; 
  outline: none; 
  background: none; 
  color: inherit; 
  font-family: inherit; 
}
img    { 
  display: block; 
  max-width: 100%; 
}
::-webkit-scrollbar { 
  width: 4px;
  height: 4px; 
}
::-webkit-scrollbar-track { 
  background: transparent; 
}
::-webkit-scrollbar-thumb { 
  background: #333; 
  border-radius: 99px; 
}
::-webkit-scrollbar-thumb:hover  { 
  background: #555; 
}

/* ROOT LAYOUT — sidebar | main stacked above player */
.app-root {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  height: calc(100svh - var(--player-h));
  overflow: hidden;
}

/*  SIDEBAR */
.sidebar {
  background: var(--clr-bg-sidebar);
  border-right: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  padding: 24px 12px 20px;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
  z-index: 50;
  transition: transform var(--dur-slow) var(--ease);
}

/* Logo */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 8px 28px;
}

.logo-icon-wrap {
  width: 36px; height: 36px;
  border-radius: var(--r-md);
  background: var(--clr-green);
  display: grid; place-items: center;
  color: #000;
  font-size: .95rem;
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(29,185,84,.4);
}

.logo-wordmark {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -.5px;
}

/* Section label */
.sidebar-label {
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--clr-txt-dim);
  padding: 0 12px 8px;
}

/* Nav links */
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--r-md);
  font-size: .875rem;
  font-weight: 500;
  color: var(--clr-txt-secondary);
  transition: background var(--dur-fast) var(--ease),
              color    var(--dur-fast) var(--ease);
  position: relative;
}

.nav-link i {
  width: 18px;
  text-align: center;
  font-size: .85rem;
  flex-shrink: 0;
}

.nav-link:hover {
  background: rgba(255,255,255,.05);
  color: var(--clr-txt-primary);
}

.nav-link.active {
  background: rgba(255,255,255,.08);
  color: var(--clr-txt-primary);
}

/* Green left-border on active link */
.nav-link.active::before {
  content: '';
  position: absolute;
  left: 0; top: 18%; bottom: 18%;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--clr-green);
}

/* Sidebar bottom tip  */
.sidebar-bottom {
  margin-top: auto;
  padding-top: 20px;
}

.sidebar-tip {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 14px;
  border-radius: var(--r-md);
  background: rgba(255,255,255,.03);
  border: 1px solid var(--clr-border);
  font-size: .72rem;
  color: var(--clr-txt-dim);
  line-height: 1.5;
}

.sidebar-tip i { 
  margin-top: 2px;
  flex-shrink: 0; 
}

.sidebar-tip code {
  font-family: 'DM Mono', 'Fira Code', monospace;
  color: var(--clr-green);
  font-size: .68rem;
}

/* MAIN CONTENT AREA */
.main {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--clr-bg-main);
}
 /* TOP BAR */
 
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 28px;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  z-index: 30;
  background: linear-gradient(to bottom, var(--clr-bg-main) 70%, transparent);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

/* Hamburger (mobile only) */
.hamburger {
  display: none;
  width: 36px; height: 36px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.06);
  color: var(--clr-txt-secondary);
  font-size: .9rem;
  flex-shrink: 0;
  transition: background var(--dur-fast) var(--ease);
}
.hamburger:hover { background: rgba(255,255,255,.1); }

/* Greeting */
.greeting h1 {
  font-family: 'Syne', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.15;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#greeting-sub {
  font-size: .8rem;
  color: var(--clr-txt-secondary);
  margin-top: 2px;
}

/* Search */
.search-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--clr-bg-input);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-xl);
  padding: 10px 18px;
  width: 280px;
  transition: border-color var(--dur-fast) var(--ease),
              box-shadow  var(--dur-fast) var(--ease);
}

.search-wrap:focus-within {
  border-color: rgba(255,255,255,.2);
  box-shadow: 0 0 0 3px rgba(29,185,84,.12);
}

.search-wrap i {
  color: var(--clr-txt-dim);
  font-size: .8rem;
  flex-shrink: 0;
}

#search-input {
  flex: 1;
  font-size: .875rem;
  background: none;
  min-width: 0;
}
#search-input::placeholder { color: var(--clr-txt-dim); }
/* hide browser's built-in ✕ on search inputs */
#search-input::-webkit-search-cancel-button { display: none; }

/*   HERO NOW-PLAYING BANNER  */
.hero-banner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 24px;
  margin: 0 28px 28px;
  padding: 24px;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.07);
  min-height: 120px;
  flex-shrink: 0;
  animation: fadeSlide .4s var(--ease) both;
}

/* Blurred, coloured background layer */
.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(29,185,84,.18), rgba(0,0,0,.6));
  transition: background var(--dur-slow) var(--ease);
  z-index: 0;
}

.hero-banner > * { position: relative; z-index: 1; }

.hero-poster {
  width: 80px; height: 80px;
  border-radius: var(--r-md);
  object-fit: cover;
  box-shadow: 0 8px 30px rgba(0,0,0,.5);
  flex-shrink: 0;
  transition: transform var(--dur-med) var(--ease);
}
.hero-poster:hover { transform: scale(1.04); }

.hero-chip {
  display: inline-block;
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--clr-green);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.hero-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 4px;
}

.hero-artist {
  font-size: .85rem;
  color: var(--clr-txt-secondary);
}

.hero-category {
  display: inline-block;
  margin-top: 8px;
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  background: rgba(255,255,255,.1);
  padding: 3px 10px;
  border-radius: 99px;
  color: var(--clr-txt-secondary);
}

/* Animated equalizer bars */
.hero-bars {
  margin-left: auto;
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 36px;
  flex-shrink: 0;
}

.hero-bars span {
  display: block;
  width: 5px;
  background: var(--clr-green);
  border-radius: 3px 3px 0 0;
  animation: bar-bounce 1.1s ease-in-out infinite;
  opacity: .85;
}
.hero-bars span:nth-child(1) { animation-delay: .0s;  }
.hero-bars span:nth-child(2) { animation-delay: .18s; }
.hero-bars span:nth-child(3) { animation-delay: .08s; }
.hero-bars span:nth-child(4) { animation-delay: .24s; }
.hero-bars span:nth-child(5) { animation-delay: .14s; }
.hero-bars span:nth-child(6) { animation-delay: .05s; }

@keyframes bar-bounce {
  0%,100% { height: 20%; opacity: .5; }
  50%      { height: 100%; opacity: 1; }
}

/* Paused state — bars frozen */
.hero-bars.paused span { animation-play-state: paused; }

/*   SONGS SECTION  */
.songs-section {
  padding: 0 28px 28px;
  flex: 1;
}

.songs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.songs-section-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
}

.songs-count-badge {
  font-size: .75rem;
  color: var(--clr-txt-dim);
  background: rgba(255,255,255,.05);
  border: 1px solid var(--clr-border);
  padding: 4px 12px;
  border-radius: 99px;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   9.  SONGS GRID
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
.songs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 18px;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   10.  SONG CARD
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
.song-card {
  background: var(--clr-bg-card);
  border-radius: var(--r-lg);
  padding: 14px;
  cursor: pointer;
  border: 1px solid transparent;
  transition:
    background  var(--dur-med) var(--ease),
    border-color var(--dur-med) var(--ease),
    transform   var(--dur-med) var(--ease),
    box-shadow  var(--dur-med) var(--ease);
  animation: card-in var(--dur-slow) var(--ease) both;
  position: relative;
  overflow: hidden;
}

/* Staggered entrance */
.song-card:nth-child(1)  { animation-delay: .03s; }
.song-card:nth-child(2)  { animation-delay: .06s; }
.song-card:nth-child(3)  { animation-delay: .09s; }
.song-card:nth-child(4)  { animation-delay: .12s; }
.song-card:nth-child(5)  { animation-delay: .15s; }
.song-card:nth-child(6)  { animation-delay: .18s; }
.song-card:nth-child(7)  { animation-delay: .21s; }
.song-card:nth-child(8)  { animation-delay: .24s; }

@keyframes card-in {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.song-card:hover {
  background: var(--clr-bg-card-h);
  transform: translateY(-4px);
  box-shadow: 0 14px 36px rgba(0,0,0,.45);
}

/* Active/playing card */
.song-card.is-active {
  border-color: rgba(29,185,84,.4);
  background: var(--clr-bg-card-h);
}

/* Subtle tinted glow from song accent color */
.song-card.is-active::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  background: var(--card-accent, transparent);
  opacity: .06;
  pointer-events: none;
}

/* ── Poster wrap ── */
.card-img-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--r-md);
  overflow: hidden;
  margin-bottom: 14px;
  background: #222;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease);
}
.song-card:hover .card-img-wrap img { transform: scale(1.06); }

/* Genre chip on poster */
.card-genre {
  position: absolute;
  top: 8px; left: 8px;
  font-size: .58rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(6px);
  color: #fff;
  padding: 3px 8px;
  border-radius: 99px;
  pointer-events: none;
}

/* Hover play overlay */
.card-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,.45);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease);
  border-radius: var(--r-md);
}
.song-card:hover .card-overlay,
.song-card.is-active .card-overlay { opacity: 1; }

.card-play-btn {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--clr-green);
  color: #000;
  font-size: 1rem;
  display: grid;
  place-items: center;
  box-shadow: 0 4px 20px rgba(0,0,0,.5);
  transition: transform var(--dur-fast) var(--ease),
              background var(--dur-fast) var(--ease);
  /* nudge play icon to look centred */
  padding-left: 2px;
}
.card-play-btn:hover {
  transform: scale(1.1);
  background: var(--clr-green-hi);
}

/* Mini EQ bars on active card play button */
.card-eq {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 16px;
  width: 20px;
}
.card-eq span {
  display: block;
  width: 4px;
  background: #000;
  border-radius: 2px;
  animation: bar-bounce .9s ease-in-out infinite;
}
.card-eq span:nth-child(1) { animation-delay: .0s; }
.card-eq span:nth-child(2) { animation-delay: .2s; }
.card-eq span:nth-child(3) { animation-delay: .1s; }
.paused-eq span { animation-play-state: paused; }

/* ── Card text ── */
.card-title {
  font-family: 'Syne', sans-serif;
  font-size: .88rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-artist {
  font-size: .75rem;
  color: var(--clr-txt-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Playing dot indicator ── */
.playing-dot {
  flex-shrink: 0;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--clr-green);
  box-shadow: 0 0 6px var(--clr-green);
  animation: dot-pulse 1.4s ease-in-out infinite;
}
@keyframes dot-pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .5; transform: scale(.7); }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   11.  SKELETON LOADER
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 18px;
}

.skeleton-card {
  background: var(--clr-bg-card);
  border-radius: var(--r-lg);
  padding: 14px;
}

.sk-img {
  aspect-ratio: 1/1;
  border-radius: var(--r-md);
  background: #222;
  margin-bottom: 14px;
  animation: shimmer 1.4s linear infinite;
}

.sk-line {
  height: 12px;
  border-radius: 6px;
  background: #222;
  margin-bottom: 8px;
  animation: shimmer 1.4s linear infinite;
}
.sk-line.long  { width: 80%; }
.sk-line.short { width: 55%; }

@keyframes shimmer {
  0%   { background-color: #1c1c1c; }
  50%  { background-color: #2a2a2a; }
  100% { background-color: #1c1c1c; }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   12.  EMPTY / NO-RESULTS STATE
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
.no-results {
  text-align: center;
  padding: 60px 24px;
  color: var(--clr-txt-secondary);
}
.no-results i      { font-size: 3rem; color: var(--clr-txt-dim); margin-bottom: 16px; }
.no-results p      { font-size: .9rem; margin-bottom: 16px; }
.no-results strong { color: var(--clr-txt-primary); }

.btn-ghost {
  font-size: .8rem;
  padding: 8px 20px;
  border-radius: 99px;
  border: 1px solid var(--clr-border-hi);
  color: var(--clr-txt-secondary);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.btn-ghost:hover {
  background: rgba(255,255,255,.06);
  color: var(--clr-txt-primary);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   13.  FOOTER PLAYER
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
.player {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--player-h);
  background: var(--clr-bg-player);
  border-top: 1px solid var(--clr-border);
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  align-items: center;
  padding: 0 20px;
  gap: 16px;
  z-index: 100;
  /* Glass effect */
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
}

/* ── Player left: info ── */
.player-info {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.player-thumb-wrap {
  position: relative;
  width: 54px; height: 54px;
  flex-shrink: 0;
}

#player-thumb {
  width: 54px; height: 54px;
  border-radius: var(--r-sm);
  object-fit: cover;
  background: #222;
}

/* Pulsing ring when playing */
.player-thumb-ring {
  position: absolute;
  inset: -3px;
  border-radius: calc(var(--r-sm) + 3px);
  border: 2px solid var(--clr-green);
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease);
  animation: ring-pulse 2s ease-in-out infinite;
}
.player-thumb-ring.active { opacity: 1; }

@keyframes ring-pulse {
  0%,100% { transform: scale(1); opacity: .7; }
  50%      { transform: scale(1.05); opacity: 1; }
}

.player-meta { min-width: 0; flex: 1; }

.player-track {
  font-family: 'Syne', sans-serif;
  font-size: .875rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-artist {
  font-size: .75rem;
  color: var(--clr-txt-secondary);
  margin-top: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.like-btn {
  flex-shrink: 0;
  font-size: .9rem;
  color: var(--clr-txt-dim);
  transition: color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.like-btn:hover    { color: var(--clr-txt-secondary); transform: scale(1.1); }
.like-btn.liked    { color: var(--clr-green); }
.like-btn.liked i  { font-weight: 900; }

/* ── Player center ── */
.player-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Generic icon button */
.icon-btn {
  display: grid;
  place-items: center;
  color: var(--clr-txt-secondary);
  font-size: 1rem;
  border-radius: 50%;
  transition:
    color     var(--dur-fast) var(--ease),
    transform var(--dur-fast) var(--ease);
  width: 32px; height: 32px;
}
.icon-btn:hover        { color: var(--clr-txt-primary); transform: scale(1.1); }
.icon-btn.sm           { font-size: .8rem; }
.icon-btn.active       { color: var(--clr-green); }

/* Big play/pause */
.play-pause-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--clr-txt-primary);
  color: #000 !important;
  font-size: .95rem;
  box-shadow: 0 0 0 0 transparent;
  transition:
    background var(--dur-fast) var(--ease),
    transform  var(--dur-fast) var(--ease),
    box-shadow var(--dur-fast) var(--ease) !important;
  /* nudge play icon */
  padding-left: 2px;
}
.play-pause-btn:hover {
  background: var(--clr-green) !important;
  transform: scale(1.08) !important;
  box-shadow: 0 0 22px rgba(29,185,84,.4) !important;
  padding-left: 2px;
}
/* Pause icon doesn't need nudge */
.play-pause-btn.playing { padding-left: 0; }

/* Scrubber */
.scrubber-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
}

.time-label {
  font-size: .68rem;
  color: var(--clr-txt-dim);
  font-variant-numeric: tabular-nums;
  width: 32px;
  flex-shrink: 0;
}
.time-label:last-child { text-align: right; }

.scrubber-track {
  flex: 1;
  height: 4px;
  background: rgba(255,255,255,.12);
  border-radius: 99px;
  cursor: pointer;
  position: relative;
  transition: height var(--dur-fast) var(--ease);
}
.scrubber-track:hover { height: 6px; }

.scrubber-fill {
  height: 100%;
  border-radius: 99px;
  background: var(--clr-txt-secondary);
  width: 0%;
  position: relative;
  pointer-events: none;
  transition: background var(--dur-fast) var(--ease);
}
.scrubber-track:hover .scrubber-fill { background: var(--clr-green); }

.scrubber-knob {
  position: absolute;
  right: -6px; top: 50%;
  transform: translateY(-50%);
  width: 12px; height: 12px;
  border-radius: 50%;
  background: #fff;
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease);
  pointer-events: none;
}
.scrubber-track:hover .scrubber-knob { opacity: 1; }

/* ── Player right: volume ── */
.player-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.volume-range {
  -webkit-appearance: none;
  appearance: none;
  width: 88px;
  height: 4px;
  border-radius: 99px;
  background: rgba(255,255,255,.12);
  outline: none;
  cursor: pointer;
  accent-color: var(--clr-green);
}
.volume-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease);
}
.volume-range:hover::-webkit-slider-thumb { transform: scale(1.2); }

/* Mobile overlay for sidebar */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  z-index: 40;
  backdrop-filter: blur(4px);
}
.sidebar-overlay.show { display: block; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   14.  UTILITY
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
[hidden]  { display: none !important; }

@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/*   RESPONSIVE */
@media (max-width: 860px) {
  :root { --sidebar-w: 200px; }
}

@media (max-width: 680px) {
  /* Push sidebar off-screen on mobile */
  .app-root { grid-template-columns: 1fr; }

  .sidebar {
    position: fixed;
    top: 0; left: 0; bottom: var(--player-h);
    width: var(--sidebar-w);
    transform: translateX(-100%);
    z-index: 50;
    transition: transform var(--dur-slow) var(--ease);
  }
  .sidebar.open { transform: translateX(0); }

  .hamburger { display: flex; }

  .topbar { padding: 14px 16px; }
  .greeting h1 { font-size: 1.25rem; }

  .search-wrap { width: 200px; }

  .songs-section { padding: 0 16px 24px; }
  .hero-banner   { margin: 0 16px 20px; }
  .hero-bars     { display: none; }

  /* Compact player on mobile */
  .player { 
    grid-template-columns: auto 1fr;
    padding: 0 12px; gap: 8px;
   }
  .player-right { 
     display: none;
     }
  .player-info  { 
    gap: 8px; 
  }
  .like-btn {
     display: none; 
    }
}

@media (max-width: 440px) {
  .songs-grid { 
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
     gap: 12px; 
    }
  .search-wrap {
     width: 160px;
     }
}