/* RESET */
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: #000; color: #fff; font-family: sans-serif;
}

/* Hide the play-icon & track-number while .loading is active */
.loading .play-icon,
.loading .track-number { display: none !important; }

/* Force 100% opacity (no hover fade) during loading */
.loading .song-block,
.loading .song-block:hover { opacity: 1 !important; }

/* CENTERED LOGO (FIXED) */
.center-logo {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
  pointer-events: none; max-width: 200px; z-index: 9999;
}

/* GRID */
.grid-container {
  display: grid; gap: 1rem; grid-template-columns: repeat(3, 1fr);
  max-width: 1200px; margin: 0 auto 6rem; padding: 1rem;
}
@media (max-width: 1000px) { .grid-container { grid-template-columns: 1fr; } }

/* SONG BLOCKS */
.song-block {
  position: relative; overflow: hidden; border-radius: 20px;
  background: url("../img/tv-static.gif") center center / cover no-repeat;
  aspect-ratio: 16 / 9;
  border: 2px solid transparent;
  opacity: 0.5; transition: opacity 0.3s, border-color 0.3s, background-image 0.3s;
  cursor: pointer;
}
.song-block:hover { opacity: 1; }
.song-block.active { opacity: 1; border-color: #fff; }

/* MEDIA LAYER (holds either <img> or <video>) */
.media-layer {
  position: absolute; inset: 0; display: grid; place-items: center;
}
.media-layer > .media {
  width: 100%; height: 100%; object-fit: cover; display: block;
  opacity: 0; transition: opacity 180ms linear;
}
.media-layer > .media.show { opacity: 1; }

/* PLAY ICON (bottom-right corner) */
.play-icon {
  position: absolute; bottom: 8px; right: 8px; font-size: 32px; color: #fff;
  display: none; opacity: 0.8;
}
.song-block:hover .play-icon { display: block; }

/* TRACK NUMBER/TITLE (top-left corner) */
.track-number {
  position: absolute; top: 8px; left: 8px; font-size: 14px; color: #fff;
  background: rgba(0,0,0,0.6); padding: 4px 6px; border-radius: 4px;
  display: none; line-height: 1.2; max-width: 80%; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
}
.song-block:hover .track-number { display: inline-block; }

/* BOTTOM BAR */
.bottom-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem; background: #111; position: fixed; bottom: 0; left: 0; right: 0;
  border-top: 2px solid #333;
}
.song-info { display: flex; align-items: center; }
.song-info #currentSong { font-size: 1rem; margin-right: 0.5rem; }

/* LOADING SPINNER */
.spinner {
  width: 18px; height: 18px; border: 2px solid #ccc; border-top: 2px solid #fff;
  border-radius: 50%; animation: spin 1s linear infinite; display: inline-block;
}
.spinner.hidden { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* CONTROLS */
.controls button {
  background: #333; color: #fff; border: none; margin: 0 0.25rem;
  padding: 0.5rem 1rem; cursor: pointer; transition: background 0.3s;
  font-size: 0;
}
.controls button:hover { background: #444; }
.material-icons { font-size: 28px; }