/* ---------- GLOBAL ---------- */
body {
  font-family: system-ui, -apple-system, sans-serif;
  background: #fef7e6;
  color: #1a1a1a;
  text-align: center;
  padding: 2rem;
  margin: 0;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.2rem;
}

header p {
  color: #555;
  margin-top: 0;
}

/* ---------- RADIO PLAYER ---------- */
#playBtn {
  font-size: 1.8rem;
  padding: 1rem 2.5rem;
  border: none;
  border-radius: 999px;
  background: #ff6b35;
  color: white;
  cursor: pointer;
  margin: 2rem 0 1rem;
  transition: background 0.2s;
}

#playBtn:hover {
  background: #e55a2b;
}

#playBtn:disabled {
  background: #aaa;
  cursor: wait;
}

#nowPlaying {
  font-size: 1.1rem;
  margin: 1rem 0;
  min-height: 3rem;
}

#statusText {
  display: block;
  font-weight: bold;
  color: #ff6b35;
}

#trackTitle {
  display: block;
  color: #333;
}

#hint {
  font-size: 0.9rem;
  color: #777;
}

/* ---------- BOOKS ---------- */
#books {
  max-width: 1100px;
  margin: 4rem auto 2rem;
  padding: 0 1rem;
  text-align: left;
}

#books h2 {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 0.3rem;
}

.books-intro {
  text-align: center;
  color: #555;
  max-width: 600px;
  margin: 0 auto 2.5rem;
  font-size: 1rem;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.book-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.07);
  display: flex;
  flex-direction: column;
}

/* ---- NEW: book cover images ---- */
.book-cover {
  width: 100%;
  height: 260px;
  object-fit: contain;
  background: #f5f5f5;
  border-radius: 10px;
  margin-bottom: 1rem;
  display: block;
}

.book-badge {
  display: inline-block;
  align-self: flex-start;
  background: #ffe3d3;
  color: #b3471b;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  margin-bottom: 0.8rem;
}

.book-card h3 {
  font-size: 1.2rem;
  margin: 0 0 0.4rem;
  line-height: 1.3;
}

.edition-tag {
  display: block;
  font-size: 0.8rem;
  font-weight: 400;
  color: #ff6b35;
  margin-top: 0.2rem;
}

.book-meta {
  font-size: 0.8rem;
  color: #777;
  margin: 0 0 0.8rem;
}

.book-desc {
  font-size: 0.9rem;
  color: #333;
  line-height: 1.5;
  flex-grow: 1;
  margin: 0 0 1.2rem;
}

.buy-btn {
  display: inline-block;
  text-align: center;
  background: #ff6b35;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  padding: 0.7rem 1rem;
  border-radius: 10px;
  transition: background 0.2s;
}

.buy-btn:hover {
  background: #e55a2b;
}

/* ---------- MOBILE ---------- */
@media (max-width: 500px) {
  body {
    padding: 1.2rem;
  }

  header h1 {
    font-size: 2rem;
  }

  #books h2 {
    font-size: 1.6rem;
  }

  .book-cover {
    height: 220px;
  }
}