/* Base Reset & Layout */
body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: 2rem 1rem;
  background: linear-gradient(to bottom right, #f8f9fb, #e6e8f0);
  color: #1f1f2f;
  line-height: 1.65;
  font-size: 16px;
}

main {
  display: flex;
  flex-direction: column;
  gap: 4rem;
  max-width: 960px;
  margin: 0 auto;
}

/* Header */
.site-header {
  text-align: center;
  padding: 3rem 1rem 2rem;
  border-bottom: 1px solid #ddd;
  background: linear-gradient(to right, #ffffff, #f7f7ff);
}

.site-header h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: #1a1a33;
  letter-spacing: -0.5px;
}

.tagline {
  font-size: 1.15rem;
  color: #5a5a76;
}

/* Section Styling */
.about-block,
.playlist-showcase {
  background: #ffffff;
  border-radius: 20px;
  padding: 2.5rem 2rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.6s ease forwards;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.playlist-showcase:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.1);
}

/* Text Elements */
.playlist-meta h3 {
  font-size: 2.2rem;
  font-weight: 600;
  color: #2c2c45;
  margin-bottom: 0.5rem;
}

.playlist-meta p {
  font-size: 1.05rem;
  color: #555577;
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.cta-link {
  display: inline-block;
  margin-top: 1rem;
  font-weight: bold;
  color: #6c4eff;
  background: rgba(108, 78, 255, 0.08);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.2s ease;
}

.cta-link:hover {
  background: rgba(108, 78, 255, 0.2);
}

/* Video Embed */
.video-player {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 14px;
  margin-top: 1.5rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.video-player iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Carousel */
.playlist-carousel {
  display: flex;
  overflow-x: auto;
  gap: 1rem;
  padding: 1.2rem 0;
  scroll-snap-type: x mandatory;
  scroll-padding-left: 1rem;
  -webkit-overflow-scrolling: touch;
}

.playlist-carousel img {
  flex: 0 0 auto;
  width: 180px;
  border-radius: 12px;
  border: 2px solid transparent;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: transform 0.25s ease, border-color 0.25s ease;
  scroll-snap-align: start;
}

.playlist-carousel img:hover,
.playlist-carousel img.active {
  transform: scale(1.06);
  border-color: #6c4eff;
  box-shadow: 0 0 0 3px rgba(108, 78, 255, 0.3);
}

/* Tabs (Optional Filters) */
.tabs-container,
.nav-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.tab-button,
.nav-tabs button {
  padding: 0.6rem 1.2rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 30px;
  background: #e0e0f0;
  color: #3e3e58;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.tab-button:hover,
.nav-tabs button:hover {
  background: #d0d0ff;
}

.tab-button.active,
.nav-tabs button.active {
  background: #6c4eff;
  color: white;
}

/* Back to Top Button */
#backToTop {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 600;
  background-color: #292941;
  color: #fff;
  border: none;
  border-radius: 24px;
  cursor: pointer;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(41, 41, 65, 0.2);
  opacity: 0;
  pointer-events: none;
  transition: 
    opacity 0.3s ease, 
    transform 0.3s ease,
    box-shadow 0.3s ease,
    background-color 0.3s ease;
}

#backToTop.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

#backToTop:hover {
  background-color: #6c4eff;
  box-shadow: 0 6px 18px rgba(108, 78, 255, 0.4);
  transform: scale(1.08);
}

/* Responsive Tweaks */
@media (max-width: 600px) {
  .playlist-carousel img {
    width: 130px;
  }

  .playlist-meta h3 {
    font-size: 1.6rem;
  }

  .playlist-meta p {
    font-size: 0.95rem;
  }

  #backToTop {
    bottom: 16px;
    right: 16px;
    padding: 8px 12px;
    font-size: 13px;
  }
}