body {
    background-color: #F9F3EB; /* Nền kem sáng ấm đồng nhất */
    color: #1F2937; /* Chữ xám đậm dễ đọc trên nền sáng */
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}

html { scroll-behavior: smooth; }

/* Dropcap cho đoạn mở đầu */
.dropcap::first-letter {
    font-family: 'Playfair Display', serif;
    font-size: 5.5rem;
    font-weight: 700;
    color: #B48E4B; /* Vàng đồng */
    float: left;
    line-height: 0.8;
    padding-right: 0.75rem;
    padding-top: 0.5rem;
}

.fade-in-section {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.9s ease-out, transform 0.9s ease-out;
    will-change: opacity, visibility;
}
.fade-in-section.is-visible {
    opacity: 1;
    transform: none;
}

#progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(to right, #DC2626, #2563EB);
    z-index: 9999;
    transition: width 0.1s ease;
}

#hero-container {
    height: 350vh; 
    position: relative;
    background-color: #F9F3EB; /* Phải trùng với màu Body */
}

.hero-sticky {
    position: sticky;
    top: 0;
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #F9F3EB; /* Phải trùng với màu Body */
}

/* Chỉnh kích thước vương miện khổng lồ - gần tràn màn hình */
#crown-container {
    width: 100vw; 
    height: 100vh;
    max-width: none;
    max-height: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 20; 
}

.crown-shard {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image: url('https://pbs.twimg.com/media/HR02KEdaUAA_MXO?format=jpg&name=large');
    background-size: contain; 
    background-repeat: no-repeat;
    background-position: center;
    will-change: transform, opacity;
    transform-origin: center;
    filter: drop-shadow(0 15px 25px rgba(0, 0, 0, 0.08));
}

#shard-1 { clip-path: polygon(0% 0%, 100% 0%, 50% 50%); }
#shard-2 { clip-path: polygon(100% 0%, 100% 100%, 50% 50%); }
#shard-3 { clip-path: polygon(100% 100%, 50% 100%, 50% 50%); }
#shard-4 { clip-path: polygon(50% 100%, 0% 100%, 50% 50%); }
#shard-5 { clip-path: polygon(0% 100%, 0% 0%, 50% 50%); }

#hero-title-group {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -40%);
    text-align: center;
    opacity: 0; 
    z-index: 10;
    width: 100%;
    padding: 0 20px;
    will-change: transform, opacity;
}

.pull-quote {
    position: relative;
    padding: 2.5rem 3rem;
    margin: 3.5rem 0;
    background: #FFFFFF; /* Box trắng nổi bật trên nền kem */
    border-left: 6px solid #B48E4B;
    border-radius: 0 1rem 1rem 0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}
.pull-quote::before {
    content: '“';
    position: absolute;
    top: -10px;
    left: 15px;
    font-family: 'Playfair Display', serif;
    font-size: 6rem;
    color: rgba(180, 142, 75, 0.15); /* Dấu nháy kép màu vàng nhạt */
    line-height: 1;
}