:root {
    --paper-bg: #f7f5f0; 
    --ink-black: #111111;
    --ink-gray: #4a4a4a;
    --accent-gold: #c5a059;
    --accent-dark: #2c3e50;
}

body {
    font-family: 'Lora', serif;
    color: var(--ink-black);
    background-color: var(--paper-bg);
    overflow-x: hidden;
    font-size: 1.1875rem; 
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, .display-text {
    font-family: 'Playfair Display', serif;
}

.sans-text {
    font-family: 'Inter', sans-serif;
}

/* Minimalist Progress Bar */
#progress-container {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 3px;
    background: transparent; z-index: 9999;
}
#progress-bar {
    height: 100%; width: 0%;
    background: var(--accent-gold);
    transition: width 0.1s ease;
}

/* Editorial Hero Section */
.hero-wrapper {
    position: relative;
    min-height: 100vh;
    width: 100vw;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: var(--ink-black);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('https://cdn.vietnambiz.vn/stores/news_dataimages/trangth/062017/16/10/in_article/0940_viet-nam-phan-doi-lenh-kiem-duyet-lien-quan-vu-in-tien-polymer-tin-tuc-1464878841127-crop-1464878850305.jpg');
    background-size: cover;
    background-position: center 30%;
    background-attachment: fixed;
    opacity: 0.6;
    transform: scale(1.05);
    transition: transform 10s ease-out;
}

.hero-wrapper:hover .hero-bg {
    transform: scale(1);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, transparent 0%, rgba(0,0,0,0.8) 100%),
                linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.95) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: white;
    padding: 4rem 2rem 8rem 2rem;
    max-width: 1100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Drop Cap */
.drop-cap::first-letter {
    font-family: 'Playfair Display', serif;
    font-size: 6rem;
    font-weight: 900;
    float: left;
    line-height: 0.75;
    padding-right: 0.75rem;
    padding-top: 0.5rem;
    color: var(--accent-gold);
}

/* Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1.2s cubic-bezier(0.2, 0.8, 0.2, 1), transform 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.reveal.active { opacity: 1; transform: translateY(0); }

/* Premium Image Treatment (Museum Frame) */
.museum-frame {
    background: #ffffff;
    padding: 1.5rem 1.5rem 3rem 1.5rem;
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.05);
    margin: 2rem auto;
    max-width: 100%;
    border: 1px solid #eaeaea;
    position: relative;
    opacity: 0;
    transform: scale(0.97);
    transition: all 1.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.museum-frame.active {
    opacity: 1;
    transform: scale(1);
}

.museum-frame img {
    width: 100%;
    height: auto;
    display: block;
    filter: sepia(15%) contrast(1.1) brightness(0.95);
    transition: filter 0.5s ease;
}

.museum-frame:hover img {
    filter: sepia(0%) contrast(1) brightness(1); 
}

.museum-caption-area {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: center; 
    align-items: center;
    border-top: 1px solid #f0f0f0;
}

.caption-text {
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

/* Editorial Pull Quote */
.editorial-quote {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    line-height: 1.5;
    color: var(--ink-black);
    text-align: center;
    position: relative;
    padding: 3rem 0;
    margin: 5rem 0;
    font-style: italic;
}
.editorial-quote::before {
    content: '“';
    font-family: 'Playfair Display', serif;
    font-size: 8rem;
    color: var(--accent-gold);
    position: absolute;
    top: -2rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.15;
    line-height: 1;
}
.editorial-quote::after {
    content: '';
    display: block;
    width: 50px;
    height: 2px;
    background-color: var(--accent-gold);
    margin: 2rem auto 0;
}

/* Custom Breakout Layouts */
.w-screen-bleed {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
}

.parallax-bg {
    background-attachment: fixed;
    background-position: center;
    background-size: cover;
}

/* High-End Timeline */
.timeline-section {
    background-color: #111;
    color: #f7f5f0;
    padding: 6rem 0;
    margin: 6rem 0;
    position: relative;
}

.timeline-container {
    position: relative;
    max-width: 900px;
    margin: 3rem auto 0;
    padding: 2rem 0;
}

.timeline-track-bg {
    position: absolute;
    top: 50px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: #333;
    z-index: 1;
}

.timeline-progress-fill {
    position: absolute;
    top: 50px;
    left: 0;
    height: 1px;
    background-color: var(--accent-gold);
    z-index: 2;
    transition: width 0.7s cubic-bezier(0.8, 0, 0.2, 1);
    width: 0%;
}

.timeline-points-wrapper {
    position: relative;
    z-index: 3;
    display: flex;
    justify-content: space-between;
}

.tl-point {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    width: 80px;
}

.tl-year {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.25rem;
    color: #555;
    margin-bottom: 20px;
    transition: all 0.4s ease;
}

.tl-dot {
    width: 11px;
    height: 11px;
    background-color: #111;
    border: 2px solid #555;
    border-radius: 50%;
    transition: all 0.4s cubic-bezier(0.8, 0, 0.2, 1);
    position: relative;
}

.tl-point:hover .tl-year { color: #fff; }
.tl-point:hover .tl-dot { border-color: #fff; }

.tl-point.active .tl-year { 
    color: var(--accent-gold); 
    transform: scale(1.2); 
    margin-bottom: 25px;
}
.tl-point.active .tl-dot { 
    border-color: var(--accent-gold); 
    background-color: var(--accent-gold);
    box-shadow: 0 0 15px rgba(197, 160, 89, 0.5);
    transform: scale(1.5);
}

.tl-content-display {
    margin-top: 4rem;
    min-height: 160px;
    position: relative;
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.tl-content-title {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
    transition: opacity 0.4s ease;
}

.tl-content-desc {
    font-family: 'Lora', serif;
    font-size: 1.15rem;
    line-height: 1.8;
    color: #ccc;
    transition: opacity 0.4s ease;
}

p { margin-bottom: 1.75rem; text-align: justify; }

.content-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 4rem 0;
    opacity: 0.5;
}
.content-divider span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--ink-gray);
    margin: 0 10px;
}