@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&display=swap");

:root {
  --chocolate-dark:   #7B3F00;
  --chocolate-milk:   #D2691E;
  --caramel-gold:     #FFB347;
  --light-cream:      #FFF8F0;
  --glass-white:      rgba(255,248,240,0.4);
  --glass-white-dark: rgba(255,248,240,0.2);
  --text-dark-brown:  #4A2C2A;
  --text-light-cream: #FFF8F0;
  --shadow-light:     rgba(0, 0, 0, 0.1);
  --shadow-dark:      rgba(0, 0, 0, 0.3);
  --dark-mode-bg: #36200D;
}

body {
  margin: 0;
  font-family: 'Montserrat', sans-serif;
  transition: background 0.4s ease, color 0.4s ease;
  background: var(--light-cream);
  color: var(--text-dark-brown);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  padding: 20px;
}

body.dark-mode {
  background: var(--dark-mode-bg);
  color: var(--text-light-cream);
}

.top-left-logo {
  position: fixed;
  top: 16px;
  left: 16px;
  width: 60px;
  height: auto;
  border-radius: 10%;
  z-index: 1000;
  box-shadow: 0 0 15px var(--chocolate-dark);
  transition: transform 0.3s, box-shadow 0.3s, border 0.3s;
  border: 2px solid var(--caramel-gold);
}
.top-left-logo:hover {
  transform: scale(1.1);
  box-shadow: 0 0 20px var(--caramel-gold);
}

.toggle-container {
  display: flex;
  align-items: center;
  margin-top: 80px;
  margin-bottom: 50px;
  gap: 10px;
  padding: 8px 15px;
  border-radius: 12px;
  background: rgba(255,248,240,0.2);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px var(--shadow-light);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

body.dark-mode .toggle-container {
  background: rgba(0,0,0,0.2);
  box-shadow: 0 2px 10px var(--shadow-dark);
}

.switch {
  position: relative;
  width: 50px;
  height: 24px;
}
.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  inset: 0;
  background: var(--chocolate-milk);
  border-radius: 24px;
  transition: 0.4s;
}
body.dark-mode .slider {
  background: #5C3A20;
}

.slider:before {
  content: "";
  position: absolute;
  left: 4px;
  bottom: 3px;
  width: 18px;
  height: 18px;
  background-color: var(--light-cream);
  border-radius: 50%;
  transition: 0.4s;
}
input:checked + .slider {
  background: var(--caramel-gold);
}
input:checked + .slider:before {
  transform: translateX(26px);
  background-color: var(--chocolate-dark);
}
.toggle-label {
  font-size: 14px;
  color: var(--text-dark-brown);
  transition: color 0.4s ease;
}
body.dark-mode .toggle-label {
  color: var(--text-light-cream);
}

.player {
  background: var(--glass-white);
  padding: 30px;
  border-radius: 18px;
  width: 320px;
  box-shadow: 0 8px 30px var(--shadow-light);
  text-align: center;
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: background 0.4s ease, box-shadow 0.4s ease, border 0.4s ease;
}

body.light-mode .player {
  background: var(--glass-white);
  box-shadow: 0 8px 30px var(--shadow-light);
}

body.dark-mode .player {
  background: var(--glass-white-dark);
  box-shadow: 0 8px 30px var(--shadow-dark);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.cover {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 0 15px var(--chocolate-dark);
  margin-bottom: 20px;
  transition: box-shadow 0.3s ease;
  border: 1px solid rgba(0,0,0,0.05);
}
body.dark-mode .cover {
  box-shadow: 0 0 15px var(--shadow-dark);
  border: 1px solid rgba(255,255,255,0.1);
}

.info h3 {
  margin: 0;
  font-size: 24px;
  color: var(--chocolate-dark);
  text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
  font-weight: 700;
  transition: color 0.4s ease, text-shadow 0.4s ease;
}
body.dark-mode .info h3 {
  color: var(--caramel-gold);
  text-shadow: 0 0 10px rgba(255,179,71,0.3);
}

.info p {
  margin: 6px 0 18px;
  font-size: 15px;
  opacity: 0.9;
  color: var(--text-dark-brown);
  transition: color 0.4s ease, opacity 0.4s ease;
}
body.dark-mode .info p {
  color: var(--text-light-cream);
  opacity: 0.8;
}

.controls {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 20px;
}
button {
  background: var(--chocolate-milk);
  border: none;
  padding: 15px 20px;
  border-radius: 50%;
  color: var(--light-cream);
  font-size: 1.4rem;
  cursor: pointer;
  transition: background 0.3s, transform 0.1s, box-shadow 0.3s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
button:hover {
  background: var(--caramel-gold);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
button:active {
  transform: translateY(0);
}
body.light-mode button {
  background: var(--chocolate-milk);
  color: var(--light-cream);
}
body.dark-mode button {
  background: var(--chocolate-dark);
  color: var(--light-cream);
}
body.dark-mode button:hover {
  background: var(--caramel-gold);
}

.progress-container {
  background: #5C3A20;
  height: 10px;
  border-radius: 5px;
  cursor: pointer;
  margin-bottom: 20px;
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.2);
}
body.dark-mode .progress-container {
  background: #4A2C2A;
}

.progress {
  background: var(--caramel-gold);
  height: 100%;
  width: 0;
  border-radius: 5px;
  transition: width 0.1s linear;
}
body.dark-mode .progress {
  background: var(--caramel-gold);
}

input[type=range] {
  -webkit-appearance: none;
  width: 100%;
  height: 8px;
  background: #8B4513;
  border-radius: 5px;
  outline: none;
  opacity: 0.9;
  transition: opacity 0.2s;
  margin-top: 10px;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.2);
}
body.dark-mode input[type=range] {
  background: #6D3E1A;
}

input[type=range]:hover {
  opacity: 1;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--caramel-gold);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 5px rgba(0,0,0,0.4);
  border: 2px solid var(--light-cream);
}
body.dark-mode input[type=range]::-webkit-slider-thumb {
  border: 2px solid var(--chocolate-dark);
}

input[type=range]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--caramel-gold);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 5px rgba(0,0,0,0.4);
  border: 2px solid var(--light-cream);
}
body.dark-mode input[type=range]::-moz-range-thumb {
  border: 2px solid var(--chocolate-dark);
}

.wave-animation {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  height: 40px;
  gap: 6px;
  margin-bottom: 20px;
}
.wave-animation.paused span {
  animation-play-state: paused;
}
.wave-animation span {
  display: block;
  width: 8px;
  height: 20px;
  background: var(--caramel-gold);
  border-radius: 4px;
  animation: wave 1s infinite ease-in-out;
  box-shadow: 0 0 5px rgba(255,179,71,0.5);
}
body.dark-mode .wave-animation span {
  background: var(--caramel-gold);
  box-shadow: 0 0 8px rgba(255,179,71,0.7);
}
.wave-animation span:nth-child(2) { animation-delay: 0.1s; }
.wave-animation span:nth-child(3) { animation-delay: 0.2s; }
.wave-animation span:nth-child(4) { animation-delay: 0.3s; }
.wave-animation span:nth-child(5) { animation-delay: 0.4s; }
@keyframes wave {
  0%, 100% { height: 20px; }
  50%      { height: 40px; }
}

.playlist-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 260px;
  height: 100%;
  background: var(--glass-white);
  backdrop-filter: blur(14px);
  padding: 20px;
  overflow-y: auto;
  box-shadow: -4px 0 20px rgba(0,0,0,0.1);
  transform: translateX(100%);
  transition: transform 0.4s ease-in-out;
  z-index: 2000;
}
body.dark-mode .playlist-panel {
  background: var(--glass-white-dark);
}
.playlist-panel.visible {
  transform: translateX(0);
}

#togglePlaylist {
  background: var(--chocolate-milk);
  color: var(--light-cream);
  padding: 10px 20px;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  transition: 0.3s;
  margin-top: 20px;
}
#togglePlaylist:hover {
  background: var(--caramel-gold);
}

@media (max-width: 480px) {
  .player {
    width: 90%;
    padding: 20px;
  }
  .cover {
    height: 200px;
  }
  .info h3 {
    font-size: 20px;
  }
  .info p {
    font-size: 13px;
  }
  button {
    padding: 12px 16px;
    font-size: 1.2rem;
  }
  .wave-animation span {
    width: 5px;
    height: 15px;
  }
  @keyframes wave {
    0%, 100% { height: 15px; }
    50%      { height: 30px; }
  }
  .toggle-container {
    margin-top: 60px;
    margin-bottom: 30px;
  }
  .top-left-logo {
    width: 50px;
    top: 10px;
    left: 10px;
  }
}