@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,700;1,400&family=Playfair+Display:ital,wght@0,400;0,700;0,900;1,400&display=swap');

:root {
    --vt-bg: #11100f;
    --vt-surface: #1e1b18;
    --vt-border: #362f2a;
    --vt-accent: #c5a059;
    --vt-accent-hover: #e0bb73;
    --vt-text: #e6dfd3;
    --vt-muted: #968e80;
    --vt-font-head: 'Playfair Display', serif;
    --vt-font-body: 'Lora', serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background-color: var(--vt-bg); color: var(--vt-text); font-family: var(--vt-font-body); line-height: 1.8; overflow-x: hidden; }
a { color: var(--vt-accent); text-decoration: none; transition: 0.3s; }
a:hover { color: var(--vt-accent-hover); }

/* Presentation Animations */
.vt-fade-up { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.vt-fade-up.vt-visible { opacity: 1; transform: translateY(0); }

/* Header */
.vt-header { border-bottom: 1px solid var(--vt-border); padding: 30px 50px; display: flex; justify-content: space-between; align-items: center; background: rgba(17, 16, 15, 0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; box-shadow: 0 4px 20px rgba(0,0,0,0.5); }
.vt-logo { display: flex; align-items: center; gap: 15px; font-family: var(--vt-font-head); font-size: 28px; font-weight: 900; color: var(--vt-text); letter-spacing: 2px; text-transform: uppercase; }
.vt-logo svg { width: 40px; height: 40px; }
.vt-nav { display: flex; gap: 40px; }
.vt-nav a { font-family: var(--vt-font-head); font-size: 16px; letter-spacing: 1px; text-transform: uppercase; color: var(--vt-muted); }
.vt-nav a:hover, .vt-nav a.active { color: var(--vt-accent); }
.vt-menu-btn { display: none; background: none; border: none; color: var(--vt-accent); font-size: 30px; cursor: pointer; }

/* Hero */
.vt-hero { height: 90vh; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; position: relative; overflow: hidden; border-bottom: 1px solid var(--vt-border); padding: 0 20px; }
.vt-hero::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: url('data:image/svg+xml;utf8,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><path d="M0 0h100v100H0z" fill="none"/><path d="M0 50h100M50 0v100" stroke="%23c5a059" stroke-opacity="0.05" stroke-width="1"/></svg>'); z-index: -1; }
.vt-hero-title { font-family: var(--vt-font-head); font-size: 5vw; margin-bottom: 20px; color: var(--vt-accent); font-weight: 900; line-height: 1.1; max-width: 1200px; }
.vt-hero-subtitle { font-size: 1.5rem; color: var(--vt-muted); max-width: 800px; margin: 0 auto 50px; font-style: italic; }

.vt-btn { display: inline-block; padding: 15px 40px; border: 1px solid var(--vt-accent); color: var(--vt-accent); font-family: var(--vt-font-head); text-transform: uppercase; letter-spacing: 2px; transition: 0.3s; cursor: pointer; background: transparent; }
.vt-btn:hover { background: var(--vt-accent); color: var(--vt-bg); }
.vt-btn-solid { background: var(--vt-accent); color: var(--vt-bg); }
.vt-btn-solid:hover { background: var(--vt-accent-hover); color: var(--vt-bg); }

/* Full Width Presentation Sections */
.vt-presentation-section { min-height: 85vh; display: flex; align-items: center; border-bottom: 1px solid var(--vt-border); position: relative; }
.vt-presentation-section:nth-child(even) { background-color: var(--vt-surface); flex-direction: row-reverse; }
.vt-presentation-image-wrapper { flex: 1; height: 100%; min-height: 85vh; overflow: hidden; position: relative; }
.vt-presentation-image { width: 100%; height: 100%; object-fit: cover; position: absolute; top: 0; left: 0; transition: transform 1.5s ease; filter: brightness(0.8) sepia(0.2); }
.vt-presentation-section:hover .vt-presentation-image { transform: scale(1.05); }
.vt-presentation-content { flex: 1; padding: 80px; max-width: 800px; }

.vt-presentation-meta { font-size: 1rem; color: var(--vt-accent); margin-bottom: 15px; font-family: var(--vt-font-head); font-style: italic; letter-spacing: 1px; }
.vt-presentation-title { font-family: var(--vt-font-head); font-size: 3rem; margin-bottom: 30px; line-height: 1.2; }
.vt-presentation-excerpt { color: var(--vt-muted); font-size: 1.2rem; margin-bottom: 40px; }

/* Article Page */
.vt-container { max-width: 900px; margin: 0 auto; padding: 80px 20px; }
.vt-article-header { text-align: center; margin-bottom: 60px; padding-top: 40px; }
.vt-article-meta { font-family: var(--vt-font-head); color: var(--vt-accent); font-size: 1.1rem; font-style: italic; margin-bottom: 20px; }
.vt-article-title { font-family: var(--vt-font-head); font-size: 4rem; line-height: 1.1; margin-bottom: 30px; }
.vt-article-author { color: var(--vt-muted); font-style: italic; font-size: 1.2rem; }
.vt-article-main-image { width: 100%; max-height: 600px; object-fit: cover; margin-bottom: 60px; border: 1px solid var(--vt-border); filter: sepia(0.2); }
.vt-article-content { font-size: 1.25rem; line-height: 1.9; color: var(--vt-text); }
.vt-article-content p { margin-bottom: 30px; }
.vt-article-content h2 { font-family: var(--vt-font-head); font-size: 2.2rem; margin: 60px 0 30px; color: var(--vt-accent); }
.vt-article-inline-image { margin: 50px 0; border: 1px solid var(--vt-border); padding: 10px; background: var(--vt-surface); }
.vt-article-inline-image img { width: 100%; height: auto; display: block; filter: sepia(0.2); }
.vt-article-inline-image figcaption { font-family: var(--vt-font-head); font-style: italic; color: var(--vt-muted); text-align: center; padding: 15px; font-size: 1rem; border-top: 1px solid var(--vt-border); margin-top: 10px; }

.vt-factoid { border-left: 4px solid var(--vt-accent); padding: 30px; background: var(--vt-surface); font-style: italic; margin: 50px 0; color: var(--vt-text); position: relative; }
.vt-factoid strong { font-family: var(--vt-font-head); color: var(--vt-accent); font-size: 1.5rem; font-style: normal; display: block; margin-bottom: 15px; }

/* Info Pages */
.vt-info-title { font-family: var(--vt-font-head); font-size: 3rem; text-align: center; margin-bottom: 50px; color: var(--vt-text); position: relative; }
.vt-info-title::after { content: ''; display: block; width: 60px; height: 2px; background: var(--vt-accent); margin: 20px auto 0; }

.vt-form-group { margin-bottom: 30px; }
.vt-input { width: 100%; background: transparent; border: none; border-bottom: 1px solid var(--vt-border); padding: 15px 0; color: var(--vt-text); font-family: var(--vt-font-body); font-size: 1.2rem; transition: 0.3s; }
.vt-input:focus { outline: none; border-color: var(--vt-accent); }

.vt-faq-item { border-bottom: 1px solid var(--vt-border); padding: 30px 0; }
.vt-faq-q { font-family: var(--vt-font-head); font-size: 1.6rem; cursor: pointer; display: flex; justify-content: space-between; align-items: center; color: var(--vt-text); }
.vt-faq-q:hover { color: var(--vt-accent); }
.vt-faq-a { max-height: 0; overflow: hidden; transition: 0.4s ease; color: var(--vt-muted); margin-top: 0; opacity: 0; font-size: 1.1rem; }
.vt-faq-item.active .vt-faq-a { max-height: 500px; margin-top: 20px; opacity: 1; }

/* Footer */
.vt-footer { background: var(--vt-surface); border-top: 1px solid var(--vt-border); padding: 80px 20px 40px; text-align: center; }
.vt-footer-links { display: flex; justify-content: center; gap: 30px; margin: 40px 0; flex-wrap: wrap; }
.vt-footer-links a { color: var(--vt-muted); font-size: 0.9rem; letter-spacing: 1px; text-transform: uppercase; font-family: var(--vt-font-head); }
.vt-footer-links a:hover { color: var(--vt-accent); }

@media (max-width: 1024px) {
    .vt-presentation-section { flex-direction: column !important; min-height: auto; }
    .vt-presentation-image-wrapper { min-height: 400px; width: 100%; }
    .vt-presentation-content { padding: 50px 20px; }
}
@media (max-width: 768px) {
    .vt-presentation-image-wrapper { min-height: 250px; }
    .vt-nav { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; width: 100%; background: var(--vt-bg); padding: 20px; border-bottom: 1px solid var(--vt-border); box-shadow: 0 10px 30px rgba(0,0,0,0.8); }
    .vt-nav.active { display: flex; }
    .vt-menu-btn { display: block; }
    .vt-hero-title { font-size: 2.5rem; line-height: 1.2; }
    .vt-hero-subtitle { font-size: 1.2rem; }
    .vt-presentation-title { font-size: 2rem; }
    .vt-article-title { font-size: 2rem; line-height: 1.3; }
    .vt-header { padding: 15px 20px; }
    .vt-hero { height: auto; min-height: 70vh; padding: 80px 20px; }
    .vt-presentation-excerpt { font-size: 1.05rem; margin-bottom: 30px; }
    .vt-btn { width: 100%; text-align: center; padding: 15px 20px; margin-bottom: 10px; }
    .vt-article-content { font-size: 1.1rem; }
    .vt-article-content h2 { font-size: 1.6rem; }
    .vt-factoid { padding: 20px; }
    .vt-factoid strong { font-size: 1.3rem; }
}

/* Custom Homepage Sections */
.vt-stats-bar { display: flex; justify-content: center; gap: 80px; padding: 60px 20px; background: var(--vt-surface); border-bottom: 1px solid var(--vt-border); flex-wrap: wrap; }
.vt-stat-item { text-align: center; }
.vt-stat-number { font-family: var(--vt-font-head); font-size: 3.5rem; color: var(--vt-accent); line-height: 1; margin-bottom: 10px; font-weight: 700; }
.vt-stat-label { color: var(--vt-muted); text-transform: uppercase; letter-spacing: 1px; font-size: 0.9rem; font-family: var(--vt-font-head); }

.vt-topics-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; margin-top: 50px; text-align: left; }
.vt-topic-card { background: var(--vt-surface); border: 1px solid var(--vt-border); padding: 40px 30px; transition: 0.3s ease; text-align: center; }
.vt-topic-card:hover { border-color: var(--vt-accent); transform: translateY(-10px); }
.vt-topic-icon { font-size: 3rem; margin-bottom: 20px; filter: grayscale(1); transition: 0.3s; }
.vt-topic-card:hover .vt-topic-icon { filter: grayscale(0); }
.vt-topic-card h3 { font-family: var(--vt-font-head); font-size: 1.8rem; color: var(--vt-text); margin-bottom: 15px; }
.vt-topic-card p { color: var(--vt-muted); font-size: 1.1rem; margin: 0; }

.vt-gallery-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.vt-gallery-item { position: relative; overflow: hidden; aspect-ratio: 1; border: 1px solid var(--vt-border); }
.vt-gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s ease; filter: sepia(0.3) brightness(0.8); }
.vt-gallery-item:hover img { transform: scale(1.1); filter: sepia(0) brightness(1); }

/* Modal */
.vt-modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(17, 16, 15, 0.9); display: flex; justify-content: center; align-items: center; z-index: 1000; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; backdrop-filter: blur(5px); }
.vt-modal.active { opacity: 1; pointer-events: all; }
.vt-modal-content { background: var(--vt-surface); border: 1px solid var(--vt-border); padding: 50px; max-width: 500px; width: 90%; text-align: center; transform: translateY(30px); transition: transform 0.3s ease; box-shadow: 0 20px 50px rgba(0,0,0,0.8); position: relative; }
.vt-modal.active .vt-modal-content { transform: translateY(0); }
.vt-modal-icon { font-size: 3rem; color: var(--vt-accent); margin-bottom: 20px; }
.vt-modal-title { font-family: var(--vt-font-head); font-size: 2rem; color: var(--vt-text); margin-bottom: 15px; }
.vt-modal-text { color: var(--vt-muted); margin-bottom: 30px; font-size: 1.1rem; }