body {
  font-family: Arial, sans-serif;
  color: #333;
  background-color: #f4f4f9;
  margin: 0;
  padding: 0;
  transition: background-color 0.5s ease;
}

main {
  display: block;
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px;
  text-align: center;
}

h1 {
  text-align: center;
  color: #555;
  font-size: 2em;
  margin-bottom: 0.3em;
  transition: color 0.4s ease;
}

h2 {
  text-align: center;
  color: #666;
  font-size: 1.2em;
  font-weight: normal;
  margin-top: 0;
  transition: color 0.4s ease;
}

a { color: #0077cc; text-decoration: none; }
a:hover { text-decoration: underline; }

.intro {
  text-align: center;
  margin: 24px auto;
  max-width: 600px;
}
.intro p { margin: 0.4em 0; }

.player {
  text-align: center;
  margin: 28px auto;
}

audio {
  display: block;
  margin: 0 auto;
  max-width: 100%;
}

.artwork {
  text-align: center;
  margin: 28px auto;
}

.rounded-image {
  display: block;
  margin: 0 auto;
  border-radius: 20px;
  max-width: 90%;
  height: auto;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

/* Сезонные темы (класс на body устанавливается через JS) */
body.season-spring { background-color: #edf7e5; }
body.season-spring h1 { color: #2e6e1e; }
body.season-spring h2 { color: #4a9e30; }
body.season-spring a  { color: #2e6e1e; }

body.season-summer { background-color: #fff8e1; }
body.season-summer h1 { color: #8a5000; }
body.season-summer h2 { color: #b87800; }
body.season-summer a  { color: #8a5000; }

body.season-autumn { background-color: #fdeee5; }
body.season-autumn h1 { color: #7a2800; }
body.season-autumn h2 { color: #a84020; }
body.season-autumn a  { color: #7a2800; }

body.season-winter { background-color: #e5eef8; }
body.season-winter h1 { color: #0d3a6e; }
body.season-winter h2 { color: #1a5599; }
body.season-winter a  { color: #0d3a6e; }

@media (max-width: 768px) {
  h1 { font-size: 1.5em; }
  main { padding: 24px 16px; }
}

#backToTop {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 30px;
  z-index: 99;
  font-size: 18px;
  border: none;
  outline: none;
  background-color: #0077cc;
  color: white;
  cursor: pointer;
  padding: 10px 15px;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}
#backToTop:hover { background-color: #555; }

body.season-spring #backToTop { background-color: #2e6e1e; }
body.season-summer #backToTop { background-color: #8a5000; }
body.season-autumn #backToTop { background-color: #7a2800; }
body.season-winter #backToTop { background-color: #0d3a6e; }