body {
background-image: url("construction.png");
background-size: cover;
background-position: right;
background-repeat: no-repeat;
background-attachment: fixed;
transition: background-color 1.5s ease;
padding-bottom: 80px;

font: 80% 'Courier New', monospace;
margin: 0;
}

/* center layout */
html, body {
  height: 100%;
  margin: 0;
  overflow: hidden;
}

/* navigation */
#navigation {
position: absolute;
top: 40px;
left: 40px;
}

#navigation ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

#navigation a {
  text-decoration: none;
  color: #e6e6e6;

  display: block;
  padding: 6px 10px;
  margin-bottom: 6px;

  background: rgba(255, 216, 79, 0.90);
  border: 1px solid #fff;

  opacity: 0.9;
  animation: navFlicker 8s infinite;
}

@keyframes navFlicker {
  0%, 100% { opacity: 0.95; }
  97% { opacity: 0.95; }
  98% { opacity: 0.6; }
  99% { opacity: 1; }
}

#navigation a:hover {
  opacity: 1;
  background: rgba(0, 0, 0, 0.95);
  border-color: #555;
}

/* main container */
body #content {
  width: 65%;
  max-width: 650px;
  height: 520px;
  overflow-y: auto;
  margin: 80px auto 0 auto;
  padding: 25px;
  border: 1px solid #444;
  box-shadow: 10px 10px 0 #0d0d0d;
  text-align: left;
  position: relative;
  animation: breathe 6s ease in-out infinite;
}

@keyframes breathe {
  0%, 100% {
    box-shadow: 6px 6px 0 #0d0d0d;
  }
  50% {
    box-shadow: 8px 8px 0 #050505;
  }
}

#music-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 34px;

  background: #000;
  color: #d8d8d8;

  display: flex;
  align-items: center;

  font-family: "Courier New", monospace;
  font-size: 12px;

  border-top: 1px solid #333;

  padding: 0 10px;
  box-sizing: border-box;
}

#music-btn {
  background: none;
  border: none;
  color: #d8d8d8;
  font-size: 14px;

  cursor: pointer;
  margin-right: 12px;
}

#music-btn:hover {
  color: white;
}

#track-info {
  display: flex;
  gap: 10px;
  opacity: 0.85;
}

#track-title::after {
  content: " —";
  margin-left: 6px;
  opacity: 0.5;
}