.navbar {
    background-color: #000;       /* match page background */
    padding: 10px 0;
    text-align: center;           /* center menu */
  }
  .navbar ul {
    list-style-type: none;        /* remove bullets */
    margin: 0;
    padding: 0;
  }
  .navbar li {
    display: inline-block;        /* horizontal layout */
    margin: 0 15px;
  }
  .navbar a {
    text-decoration: none;
    color: #fff;                  /* white text */
    font-weight: bold;
    transition: color 0.3s ease;  /* hover effect */
  }
  .navbar a:hover {
    color: #ffcc00;               /* highlight color */
  }
  .navbar a.translate {
    color: #FFA500;               /* differentiate FR link */
  }

  body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 30px;
    background-color: #000;  /* black background */
    color: #fff;             /* white text */
  }
  .container {
    max-width: 800px;
    margin: 0 auto;
  }
  .cover {
    text-align: center;
    margin-bottom: 20px;
  }
  .cover img {
    max-width: 100%;
    height: auto;
    border: 2px solid #fff;  /* white border around cover */
  }
  .description {
    margin-bottom: 20px;
  }
  .purchase {
    margin: 20px 0;
  }
  .purchase a {
    margin-right: 15px;
    text-decoration: none;
    color: #FFA500;  /* orange links */
    font-weight: bold;
    transition: all 0.3s ease; /* smooth hover effect */
  }
  .purchase a:hover {
    color: #fff;              /* turns white */
    text-decoration: underline; /* underline on hover */
  }
  .reviews {
    background-color: #111;   /* dark gray box */
    padding: 15px;
    border-left: 4px solid #666; /* gray accent */
    margin: 20px 0;
  }
  .peek-inside {
    margin-top: 20px;
    text-align: center;
  }
  .carousel {
    position: relative;
    text-align: center;
    margin-top: 20px;
  }
  .carousel img {
    max-width: 100%;
    height: auto;
    border: 2px solid #fff;
    display: none;
  }
  .carousel img.active {
    display: block;
  }
  .carousel button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: #222;       /* dark background */
    color: #fff;            /* white arrows */
    border: 1px solid #666;
    font-size: 16px;
    padding: 8px 12px;
    cursor: pointer;
    transition: background 0.3s ease;
  }
  .carousel button:hover {
    background: #444; /* slightly lighter on hover */
  }
  .carousel .prev {
    left: 10px;
  }
  .carousel .next {
    right: 10px;
  }
  .footer {
    text-align: center;     /* center the text */
    margin-top: 40px;       /* add space above the footer */
    font-size: 0.9em;       /* slightly smaller text */
    color: orange;            /* softer gray color */
  }
  .footer b i {
    color: orange;            /* keep design credit visible in white */
  }