:root {
  --primary: #00a8ff;
  --primary-glow: rgba(0, 168, 255, 0.4);
  --text-main: #ffffff;
  --text-muted: #a0a0a0;
  --border-color: rgba(255, 255, 255, 0.1);
  --glass-bg: rgba(26, 26, 32, 0.6);
  --glass-shadow: rgba(0, 0, 0, 0.5);
  --bg-gradient: linear-gradient(-45deg, #0a0a0c, #0a192f, #000000, #0d1b2a);
  --font-main: "Segoe UI", system-ui, sans-serif;
}

[data-theme="light"] {
  --primary: #007bb5;
  --primary-glow: rgba(0, 123, 181, 0.4);
  --text-main: #1c1e21;
  --text-muted: #555b63;
  --border-color: rgba(0, 0, 0, 0.1);
  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-shadow: rgba(0, 0, 0, 0.1);
  --bg-gradient: linear-gradient(-45deg, #e6ebf2, #f0f5fa, #ffffff, #dce5f0);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0 0 110px 0;
  color: var(--text-main);
  font-family: var(--font-main);
  background: var(--bg-gradient);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  transition: color 0.3s;
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

header {
  text-align: center;
  padding: 60px 20px;
  border-bottom: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.1);
  position: relative;
}

h1 {
  font-size: 3.5rem;
  margin: 0;
  letter-spacing: 3px;
  text-transform: uppercase;
  text-shadow: 0 0 20px var(--primary-glow);
}
.subtitle {
  color: var(--primary);
  letter-spacing: 6px;
  text-transform: uppercase;
  font-size: 0.95rem;
  margin-top: 15px;
  font-weight: 600;
}

.theme-toggle-btn {
  position: absolute;
  top: 25px;
  right: 25px;
  background: var(--glass-bg);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-main);
  font-size: 1.2rem;
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  transition: 0.3s;
  box-shadow: 0 4px 15px var(--glass-shadow);
}
.theme-toggle-btn:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--primary-glow);
}

/* Auth Top Bar */
.auth-container {
  position: absolute;
  top: 25px;
  left: 25px;
  display: flex;
  gap: 15px;
  align-items: center;
}
.auth-btn {
  background: var(--glass-bg);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-main);
  padding: 10px 18px;
  border-radius: 20px;
  cursor: pointer;
  transition: 0.3s;
  font-weight: bold;
  text-decoration: none;
  font-size: 0.9rem;
  box-shadow: 0 4px 15px var(--glass-shadow);
}
.auth-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-2px);
}
.user-greeting {
  font-size: 1rem;
  font-weight: bold;
  color: var(--primary);
  text-shadow: 0 0 10px var(--primary-glow);
}

.container {
  max-width: 1200px;
  margin: 50px auto;
  padding: 0 20px;
}
.section-title {
  border-left: 4px solid var(--primary);
  padding-left: 15px;
  font-size: 1.6rem;
  margin-bottom: 40px;
  text-shadow: 0 0 10px var(--primary-glow);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 35px;
}

.card {
  align-self: start; 
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 30px var(--glass-shadow);
  transition:
    transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
    box-shadow 0.4s;
}
.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px var(--primary-glow);
}
.card-img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-bottom: 2px solid var(--border-color);
}
.card-content {
  padding: 25px;
}
.card-title {
  font-size: 1.15rem;
  font-weight: bold;
  margin: 0 0 20px 0;
  line-height: 1.4;
  height: 48px;
  overflow: hidden;
}

.card-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.btn-play {
  background: linear-gradient(135deg, #007bb5, var(--primary));
  color: #fff;
  border: none;
  padding: 10px 24px;
  border-radius: 25px;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
  box-shadow: 0 4px 15px var(--primary-glow);
}
.btn-play:hover {
  transform: scale(1.05);
  filter: brightness(1.1);
}

.stats {
  display: flex;
  gap: 18px;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
}
.stats i {
  cursor: pointer;
  transition:
    color 0.3s,
    transform 0.2s;
}
.stats i:hover {
  color: var(--primary);
  transform: scale(1.2);
}

.player-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(26, 26, 32, 0.75);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid var(--border-color);
  padding: 15px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.3);
  z-index: 1000;
}

[data-theme="light"] .player-bar {
  background: rgba(255, 255, 255, 0.85);
}

/* Immersive Fullscreen Mode specifically for the player */
.player-bar.is-fullscreen {
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: var(--bg-gradient);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  padding: 50px;
  z-index: 9999;
}
.player-bar.is-fullscreen .now-playing {
  width: 100%;
  flex-direction: column;
  text-align: center;
  gap: 25px;
}
.player-bar.is-fullscreen .now-playing img {
  width: 50vmin;
  height: 50vmin;
  border-radius: 20px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  margin-bottom: 20px;
}
.player-bar.is-fullscreen .now-playing-title {
  font-size: 2.5rem;
  max-width: 80%;
  white-space: normal;
}
.player-bar.is-fullscreen .now-playing-dj {
  font-size: 1.2rem;
}
.player-bar.is-fullscreen .player-controls-wrapper {
  width: 60%;
  margin-top: 40px;
}
.player-bar.is-fullscreen .extra-controls {
  position: absolute;
  bottom: 40px;
  right: 40px;
  width: auto;
}

.now-playing {
  display: flex;
  align-items: center;
  gap: 18px;
  width: 30%;
}
.now-playing img {
  width: 55px;
  height: 55px;
  border-radius: 8px;
  object-fit: cover;
  background: #333;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}
.now-playing-info {
  display: flex;
  flex-direction: column;
}
.now-playing-title {
  font-weight: bold;
  font-size: 1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 260px;
}
.now-playing-dj {
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 3px;
}

.player-controls-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 40%;
  gap: 12px;
}
.media-buttons {
  display: flex;
  align-items: center;
  gap: 25px;
}
.media-btn {
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.3rem;
  cursor: pointer;
  transition: 0.2s;
  opacity: 0.8;
}
.media-btn:hover {
  color: var(--primary);
  opacity: 1;
  transform: scale(1.1);
}
.btn-main-play {
  font-size: 2.4rem;
  color: var(--primary);
  opacity: 1;
  filter: drop-shadow(0 0 8px var(--primary-glow));
}
.btn-main-play:hover {
  transform: scale(1.15);
  filter: drop-shadow(0 0 12px var(--primary));
}

audio {
  width: 100%;
  height: 35px;
  outline: none;
  opacity: 0.9;
  transition: 0.3s;
}
audio:hover {
  opacity: 1;
}
audio::-webkit-media-controls-enclosure {
  background-color: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}
audio::-webkit-media-controls-current-time-display,
audio::-webkit-media-controls-time-remaining-display {
  color: var(--text-main);
}

.extra-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 20px;
  width: 30%;
  color: var(--text-muted);
  font-size: 1.1rem;
}
.extra-controls i {
  cursor: pointer;
  transition: 0.2s;
}
.extra-controls i:hover {
  color: var(--primary);
  text-shadow: 0 0 10px var(--primary-glow);
  transform: scale(1.1);
}
.volume-slider {
  width: 90px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* Base Comment Components (Used by the Sidebar JS) */
.comments-toggle-btn {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0;
  margin-bottom: 15px;
}

.comment-card {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  margin-bottom: 15px;
}
.comment-card.reply {
  margin-left: 25px;
  border-left: 2px solid var(--primary);
}

.comment-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.comment-author {
  font-weight: bold;
  color: var(--text-main);
}
.comment-body {
  font-size: 0.9rem;
  line-height: 1.4;
  margin-bottom: 8px;
}
.comment-actions {
  display: flex;
  gap: 15px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.comment-action-btn {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
}
.comment-action-btn:hover {
  color: var(--primary);
}

.reply-form-wrapper {
  display: none;
  margin-top: 10px;
}
.reply-form-wrapper.open {
  display: flex;
}

/* ------------------------------------------- */
/* 💎 PREMIUM SIDEBAR STYLING                  */
/* ------------------------------------------- */
.vault-sidebar, .comments-sidebar {
  position: fixed; top: 0; width: 400px; height: 100vh;
  background: rgba(15, 15, 20, 0.85); 
  backdrop-filter: blur(30px); -webkit-backdrop-filter: blur(30px);
  z-index: 2000; padding: 30px 25px; overflow-y: auto;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.8);
}

.vault-sidebar { right: -400px; border-left: 1px solid rgba(0, 168, 255, 0.2); transition: right 0.5s cubic-bezier(0.19, 1, 0.22, 1); }
.vault-sidebar.open { right: 0; }

.comments-sidebar { left: -400px; border-right: 1px solid rgba(0, 168, 255, 0.2); transition: left 0.5s cubic-bezier(0.19, 1, 0.22, 1); }
.comments-sidebar.open { left: 0; }

/* Custom Sleek Scrollbar */
.vault-sidebar::-webkit-scrollbar, .comments-sidebar::-webkit-scrollbar { width: 6px; }
.vault-sidebar::-webkit-scrollbar-track, .comments-sidebar::-webkit-scrollbar-track { background: rgba(0,0,0,0.2); }
.vault-sidebar::-webkit-scrollbar-thumb, .comments-sidebar::-webkit-scrollbar-thumb { background: rgba(0, 168, 255, 0.5); border-radius: 10px; }
.vault-sidebar::-webkit-scrollbar-thumb:hover, .comments-sidebar::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* Headers */
.vault-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 25px; padding-bottom: 15px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.vault-header h3 { margin: 0; color: #fff; font-size: 1.3rem; letter-spacing: 1px; display: flex; align-items: center; gap: 10px; text-shadow: 0 0 15px var(--primary-glow);}
.vault-header h3 i { color: var(--primary); }
.close-vault { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); color: var(--text-muted); width: 35px; height: 35px; border-radius: 50%; cursor: pointer; transition: 0.3s; display: flex; align-items: center; justify-content: center; }
.close-vault:hover { background: rgba(255, 77, 77, 0.2); color: #ff4d4d; border-color: #ff4d4d; transform: rotate(90deg); }

/* Upgraded Comment Input */
.comments-sidebar .comment-input-box {
  background: rgba(0, 0, 0, 0.4); border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px; padding: 8px; display: flex; gap: 10px; margin-bottom: 25px;
  transition: 0.3s;
}
.comments-sidebar .comment-input-box:focus-within { border-color: var(--primary); box-shadow: 0 0 15px var(--primary-glow); background: rgba(0,0,0,0.6); }
.comments-sidebar .comment-input-box input { border: none; background: transparent; padding: 10px; flex: 1; color: #fff; outline: none; font-size: 0.95rem; }
.comments-sidebar .comment-input-box button { background: var(--primary); color: #fff; border: none; padding: 0 20px; border-radius: 8px; font-weight: bold; cursor: pointer; transition: 0.2s; text-transform: uppercase; font-size: 0.8rem; letter-spacing: 1px;}
.comments-sidebar .comment-input-box button:hover { background: #fff; color: var(--primary); box-shadow: 0 0 15px var(--primary-glow); }

/* Empty States */
.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); }
.empty-state i { font-size: 3rem; color: rgba(255,255,255,0.1); margin-bottom: 15px; display: block; }

.vault-item {
  display: flex;
  gap: 15px;
  align-items: center;
  padding: 15px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
  margin-bottom: 15px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: 0.3s;
}
.vault-item:hover {
  background: rgba(0, 0, 0, 0.4);
  border-color: var(--primary);
  transform: translateX(-5px);
}
.vault-item img {
  width: 60px;
  height: 60px;
  border-radius: 8px;
  object-fit: cover;
}
.vault-info h4 {
  margin: 0 0 5px 0;
  font-size: 0.95rem;
}
.vault-info p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.vault-play-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 8px;
  border-radius: 50%;
  cursor: pointer;
  margin-left: auto;
  transition: 0.2s;
}
.vault-play-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 0 10px var(--primary-glow);
}


/* ------------------------------------------- */
/* 📱 MOBILE RESPONSIVE STYLES                 */
/* ------------------------------------------- */
@media (max-width: 768px) {
  .player-bar:not(.is-fullscreen) {
    flex-direction: column;
    gap: 15px;
    padding: 20px 15px;
  }
  .player-bar:not(.is-fullscreen) .now-playing,
  .player-bar:not(.is-fullscreen) .player-controls-wrapper,
  .player-bar:not(.is-fullscreen) .extra-controls {
    width: 100%;
    justify-content: center;
  }
  .player-bar:not(.is-fullscreen) .now-playing-title {
    max-width: 200px;
  }
  .player-bar:not(.is-fullscreen) .extra-controls {
    display: none;
  }

  .auth-container {
    position: relative;
    top: 0;
    left: 0;
    justify-content: center;
    margin-bottom: 20px;
  }
  body {
    padding-bottom: 170px;
  }
  h1 {
    font-size: 2.5rem;
  }

  .vault-sidebar, .comments-sidebar { width: 100%; }
  .vault-sidebar { right: -100%; border-left: none; }
  .comments-sidebar { left: -100%; border-right: none; }
}