* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Compact Luxury Red Theme Variables */
:root {
    --brand-dark-red: #8b0000; 
    --brand-crimson: #b42121;
    --brand-promo: #d9534f;
    --brand-salmon: #fa7676;
    --brand-pink: #ffc0cb;
    --brand-action: #ff4c4c;
}

body { 
    font-family: 'Noto Serif SC', serif; 
    scroll-behavior: smooth;
    background-color: #ffffff;
    color: var(--brand-dark-red);
}
.font-serif-classic { font-family: 'Playfair Display', 'Noto Serif SC', serif; }

/* Mobile Viewport Engine (<768px): Strict 3:4 Aspect Ratio Window */
.banner-canvas {
  width: 100%;
  aspect-ratio: 3 / 4;
  position: relative;
  overflow: hidden;
  background-color: #000;
}

.layer-bg {
  position: absolute;
  top: 0;
  left: 0; 
  width: 260%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.layer-singer {
  position: absolute;
  top: -110%;      
  left: 15%;        
  width: 310%;      
  height: 310%;     
  object-fit: contain;
  z-index: 2;
}

.layer-mask {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: auto;
  object-fit: contain;
  z-index: 3;
  display: block;
}

.layer-headline {
  position: absolute;
  left: 3.5%;
  bottom: 5%;
  width: 93%;
  height: auto;
  object-fit: contain;
  z-index: 4;
}

/* Desktop Widescreen Viewport Engine (>=768px): Fluid 2.56:1 Design Scale */
@media (min-width: 768px) {
  .banner-canvas {
    aspect-ratio: 3840 / 1501;
  }

  .layer-bg {
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    object-position: center;
  }

  .layer-singer {
    left: 51.82%;
    top: 9.72%;
    width: 45.57%;
    height: auto;
    object-position: top center;
  }

  .layer-mask {
    display: none; 
  }

  .layer-headline {
    left: 18.15%;
    top: 21.52%;
    width: 35.31%;
    bottom: auto;
  }
}

/* Red Theme Cards */
.premium-card {
    background-color: #ffffff;
    border: 1px solid rgba(139, 0, 0, 0.1);
    box-shadow: 0 10px 30px rgba(139, 0, 0, 0.1);
    border-radius: 1.5rem;
}

/* Package 2 Glowing Crimson Effect */
@keyframes pulse-crimson-glow {
    0%, 100% { 
        box-shadow: 0 0 15px rgba(139, 0, 0, 0.4); 
        border-color: rgba(139, 0, 0, 0.6); 
    }
    50% { 
        box-shadow: 0 0 35px rgba(139, 0, 0, 0.8); 
        border-color: rgba(139, 0, 0, 1); 
    }
}
.glow-crimson { 
    animation: pulse-crimson-glow 2.5s infinite; 
    border: 2px solid var(--brand-dark-red); 
}

/* Hollow Pill Tags */
.pill-tag {
    display: inline-block;
    font-weight: 800;
    border-radius: 9999px;
    background-color: transparent;
    margin-left: auto;
    margin-right: auto;
}

/* Line Height Adjuster for Countdown */
.line-height-1 {
    line-height: 1;
}

/* Dynamic Cart Items */
.cart-item-card {
    background: #ffffff;
    box-shadow: 0 8px 30px rgba(139, 0, 0, 0.08);
    border: 1px solid #ffc0cb;
    border-left-width: 8px;
    border-left-color: #e2e8f0;
}

/* Hide scrollbars natively but allow native swipe */
.hide-scrollbar::-webkit-scrollbar { display: none; }
.hide-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

.shorts-embed-wrapper {
    position: relative;
    width: 100%;
    background: #ffffff; 
    border-radius: 1.5rem;
    overflow: hidden;
}
.shorts-embed-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Accordion details reset */
details > summary { list-style: none; }
details > summary::-webkit-details-marker { display: none; }