/* --- BẢNG MÀU ROYAL NAVY & GOLD --- */
:root {
    --navy-color: #0F2942;
    --gold-color: #C5A017;
    --bg-light: #f8f9fa;
    --text-color: #495057;
}

body {
    background-color: var(--bg-light);
}

/* --- HEADER IMAGE --- */
.main-image-header {
    width: 100%;
    height: 60vh;
    min-height: 500px;
    object-fit: cover;
    filter: brightness(0.5); /* Tối ưu nền để chữ hiển thị tốt hơn */
    animation: kenBurns 25s ease-out infinite alternate;
}

@keyframes kenBurns {
    0% { transform: scale(1); }
    100% { transform: scale(1.15); }
}

.header-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    text-align: center;
    width: 90%;
    max-width: 800px;
    z-index: 2;
    animation: fadeInDown 1s ease-out; /* Animation làm mượt phần hiển thị */
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translate(-50%, -60%); }
    to { opacity: 1; transform: translate(-50%, -50%); }
}

.header-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3rem, 5vw, 5rem);
    font-weight: 700;
    letter-spacing: 3px;
    text-shadow: 2px 2px 15px rgba(0,0,0,0.6);
    margin-bottom: 15px;
}

.header-subtitle {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(1rem, 2vw, 1.5rem);
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--gold-color);
    font-weight: 600;
    text-shadow: 1px 1px 8px rgba(0,0,0,0.8);
}

/* --- CONTENT SECTIONS --- */
.section-card {
    background: white;
    border-radius: 16px; /* Bo góc hiện đại hơn */
    box-shadow: 0 20px 60px rgba(15, 41, 66, 0.08); /* Đổ bóng sâu tạo cảm giác nổi cao cấp */
    padding: 70px 50px;
    margin-bottom: 60px;
    border-top: 4px solid var(--gold-color);
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.section-card:hover {
    transform: translateY(-8px); /* Hiệu ứng nhấc thẻ lên khi di chuột mượt hơn */
    box-shadow: 0 30px 70px rgba(15, 41, 66, 0.12);
}

.section-title {
    font-family: 'Playfair Display', serif;
    color: var(--navy-color);
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    text-transform: uppercase;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--gold-color);
    border-radius: 2px;
}

.story-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
    text-align: justify;
    font-family: 'Montserrat', sans-serif;
}

.drop-cap {
    font-family: 'Playfair Display', serif;
    font-size: 4.5rem;
    line-height: 0.8;
    color: var(--gold-color);
    float: left;
    margin-right: 15px;
    font-weight: 700;
}

/* --- TIMELINE STYLE --- */
.timeline-item {
    border-left: 2px solid rgba(15, 41, 66, 0.15);
    padding-left: 35px;
    padding-bottom: 40px;
    position: relative;
    transition: all 0.3s ease;
}

.timeline-item:last-child {
    border-left: none;
    padding-bottom: 0;
}

.timeline-item:hover {
    border-left-color: var(--gold-color);
}

.timeline-item::before {
    content: '';
    width: 20px;
    height: 20px;
    background: var(--gold-color);
    border: 4px solid white;
    border-radius: 50%;
    position: absolute;
    left: -11px;
    top: 0;
    box-shadow: 0 0 0 3px rgba(197, 160, 23, 0.3);
    transition: transform 0.3s ease;
    animation: pulseGold 2s infinite;
}

@keyframes pulseGold {
    0% { box-shadow: 0 0 0 0 rgba(197, 160, 23, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(197, 160, 23, 0); }
    100% { box-shadow: 0 0 0 0 rgba(197, 160, 23, 0); }
}

.timeline-item:hover::before {
    transform: scale(1.3);
}

.timeline-title {
    color: var(--navy-color);
    font-weight: 700;
    margin-bottom: 12px;
    font-size: 1.4rem;
    font-family: 'Playfair Display', serif;
}

/* --- IMAGE GALLERY --- */
.gallery-img {
    border-radius: 8px;
    transition: all 0.5s ease;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    cursor: pointer;
}

.gallery-img:hover {
    transform: scale(1.05); /* Phóng to ảnh nhẹ khi hover */
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
    filter: brightness(1.1);
}

.quote-footer {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    color: var(--navy-color);
    margin-top: 50px;
    font-size: 1.8rem;
    position: relative;
    text-align: center;
}

.quote-footer::before {
    content: '“';
    font-size: 5rem;
    color: var(--gold-color);
    opacity: 0.15;
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
}