:root{--primary: #0f172a;--primary-light: #1e293b;--accent: #3b82f6;--bg-light: #f8fafc;--bg-section: #ffffff;--text-main: #334155;--text-muted: #64748b;--border-color: #e2e8f0}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px;font-size:18px}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--text-main);line-height:1.6;background-color:var(--bg-section)}.navbar{background:#fff!important;border-bottom:2px solid var(--primary);padding:1rem 0;transition:all .3s ease}.navbar-brand{color:var(--primary)!important;font-weight:800;text-transform:uppercase;letter-spacing:-.02em}.navbar .nav-link{color:var(--text-muted)!important;font-weight:600;font-size:.95rem;text-transform:uppercase;letter-spacing:.05em;padding:.5rem 1rem!important;transition:color .2s}.navbar .nav-link:hover,.navbar .nav-link.active{color:var(--primary)!important}.hero-text-section{padding-top:8rem!important;padding-bottom:5rem!important;background:var(--bg-section);border-bottom:1px solid var(--border-color)}.hero-badge{display:inline-block;background:var(--primary);color:#fff;padding:.4rem 1.2rem;font-size:.85rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-bottom:1.5rem}.hero-title{font-size:4.5rem;font-weight:900;line-height:1.1;color:var(--primary);margin-bottom:1rem;text-transform:uppercase;letter-spacing:-.03em}.hero-subtitle{font-size:1.75rem;color:var(--text-muted);font-weight:600;margin-bottom:2rem;letter-spacing:-.01em}.hero-meta{font-size:1.1rem;color:var(--primary);font-weight:600;text-transform:uppercase;letter-spacing:.02em}.hero-meta i{margin-right:.5rem}.btn-register{display:inline-block;margin-top:2rem;padding:1.2rem 2.5rem;font-size:1.1rem;font-weight:700;color:#fff;background:var(--primary);border:2px solid var(--primary);text-decoration:none;text-transform:uppercase;letter-spacing:.05em;transition:all .3s ease}.btn-register:hover{background:#fff;color:var(--primary)}.section{padding:5rem 0;border-bottom:1px solid var(--border-color)}.section-alt{background:var(--bg-light)}.section-title{font-size:2.5rem;font-weight:800;color:var(--primary);margin-bottom:1rem;text-transform:uppercase;letter-spacing:-.02em}.section-divider{width:100%;height:2px;background:var(--primary);border:none;margin-bottom:3rem;opacity:1}.date-item{display:flex;align-items:center;gap:2rem;padding:1.5rem 0;border-bottom:1px solid var(--border-color)}.date-item:last-child{border-bottom:none}.date-badge{font-family:monospace;font-size:1.1rem;font-weight:700;color:var(--primary);min-width:200px}.date-event{font-size:1.1rem;font-weight:500;color:var(--text-main)}.organizer-card{text-align:left;padding:1.5rem;border:1px solid var(--border-color);background:#fff;height:100%;transition:border-color .2s}.organizer-card:hover{border-color:var(--primary)}.organizer-card .avatar{width:100%;aspect-ratio:1/1;object-fit:cover;margin-bottom:1.5rem;border:1px solid var(--border-color);transition:transform .3s ease}.organizer-card:hover .avatar{transform:scale(1.02)}.organizer-card h5{font-weight:800;font-size:1.25rem;margin-bottom:.5rem;color:var(--primary);text-transform:uppercase}.organizer-card .affiliation{font-size:.95rem;color:var(--text-muted);font-weight:500;margin-bottom:0}.site-footer{background:var(--primary);color:#fff;padding:4rem 0;font-size:1rem}.site-footer a{color:#fff;text-decoration:underline;text-underline-offset:4px}.site-footer a:hover{color:#d1d5db}@media (max-width: 991px){.hero-title{font-size:3rem}.hero-subtitle{font-size:1.4rem}.date-item{flex-direction:column;align-items:flex-start;gap:.5rem}}