.vertical-timeline-container { min-height: 100vh; background: linear-gradient(135deg, #f5f7ff 0%, #ffffff 100%); padding: 6rem 1rem 2rem; position: relative; color: #1a1a1a; } .vertical-timeline-container::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(90deg, rgba(99, 102, 241, 0.05) 1px, transparent 1px), linear-gradient(rgba(99, 102, 241, 0.05) 1px, transparent 1px); background-size: 20px 20px; pointer-events: none; z-index: 1; } .timeline-title { text-align: center; font-size: 2.5rem; margin-bottom: 3rem; font-weight: 700; letter-spacing: -0.02em; position: relative; z-index: 2; background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; } .category-filters { display: flex; justify-content: center; gap: 1rem; margin-bottom: 3rem; flex-wrap: wrap; position: relative; z-index: 2; } .category-filter { background: rgba(99, 102, 241, 0.1); backdrop-filter: blur(5px); border: 1px solid rgba(99, 102, 241, 0.2); border-radius: 30px; padding: 0.5rem 1.2rem; font-size: 0.9rem; font-weight: 500; cursor: pointer; transition: all 0.3s ease; color: #4F46E5; } .category-filter.active { background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%); border-color: transparent; color: white; } .category-filter:hover:not(.active) { background: rgba(99, 102, 241, 0.2); } .timeline-events-list { max-width: 800px; margin: 0 auto; position: relative; z-index: 2; padding: 0 1rem; } .timeline-events-list::before { content: ''; position: absolute; top: 0; bottom: 0; left: calc(50px + 1rem); width: 3px; background: linear-gradient(to bottom, rgba(99, 102, 241, 0.1), rgba(79, 70, 229, 0.3), rgba(99, 102, 241, 0.1)); border-radius: 1.5px; transform: translateX(-50%); } .timeline-year-separator { text-align: center; font-size: 1.6rem; margin: 2.5rem 0 1.5rem; color: #4F46E5; position: relative; z-index: 3; background: #f5f7ff; display: inline-block; padding: 0 1rem; left: 50%; transform: translateX(-50%); } .timeline-event-item { display: flex; align-items: flex-start; gap: 1.5rem; position: relative; margin-bottom: 2rem; padding-left: calc(50px + 1rem + 20px); } .event-date { position: absolute; left: 0; top: 5px; width: 50px; text-align: right; font-size: 0.85rem; color: #6b7280; font-weight: 500; white-space: nowrap; } .timeline-event-item::before { content: ''; position: absolute; left: calc(50px + 1rem); top: 12px; width: 13px; height: 13px; border-radius: 50%; background: white; border: 3px solid #6366F1; transform: translateX(-50%); z-index: 3; box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1); } .event-cards-container { display: flex; flex-direction: column; gap: 0.75rem; flex-grow: 1; background: rgba(255, 255, 255, 0.8); backdrop-filter: blur(8px); border-radius: 10px; border: 1px solid rgba(99, 102, 241, 0.15); box-shadow: 0 6px 25px rgba(99, 102, 241, 0.08); } .event-link { padding: 1rem 1.2rem; transition: all 0.3s ease; cursor: pointer; text-decoration: none; color: #1a1a1a; display: block; position: relative; overflow: hidden; border-bottom: 1px solid rgba(99, 102, 241, 0.1); } .event-link:last-child { border-bottom: none; } .event-link:hover { background: rgba(99, 102, 241, 0.05); } .event-content { padding-right: 2rem; } .event-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; color: #374151; } .event-description { font-size: 0.95rem; line-height: 1.5; color: #4b5563; overflow: hidden; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; transition: all 0.3s ease; } .event-link:hover .event-description { -webkit-line-clamp: unset; } .event-arrow { position: absolute; top: 50%; right: 1rem; transform: translateY(-50%); font-size: 1.1rem; color: rgba(99, 102, 241, 0.5); transition: all 0.3s ease; } .event-link:hover .event-arrow { color: #4F46E5; transform: translate(3px, -50%); } .timeline-event-item.model-release::before { border-color: #6366F1; box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1); } .timeline-event-item.open-source::before { border-color: #22c55e; box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1); } .timeline-event-item.business-industry::before { border-color: #F59E0B; box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1); } .timeline-event-item.research-papers::before { border-color: #10B981; box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1); } .timeline-event-item.policy-regulation::before { border-color: #EF4444; box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1); } .timeline-event-item.culture::before { border-color: #EC4899; box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.1); } @media (max-width: 768px) { .vertical-timeline-container { padding: 5rem 0.5rem 1.5rem; } .timeline-title { font-size: 2rem; margin-bottom: 2rem; } .category-filters { gap: 0.5rem; margin-bottom: 2rem; } .category-filter { padding: 0.4rem 1rem; font-size: 0.85rem; } .timeline-events-list { padding: 0 0.5rem; } .timeline-events-list::before { left: calc(40px + 0.5rem); } .timeline-event-item { padding-left: calc(40px + 0.5rem + 15px); gap: 1rem; } .event-date { width: 40px; font-size: 0.8rem; } .timeline-event-item::before { left: calc(40px + 0.5rem); top: 10px; width: 11px; height: 11px; border-width: 2px; } .event-cards-container { gap: 0.5rem; } .event-link { padding: 0.8rem 1rem; } .event-title { font-size: 1rem; } .event-description { font-size: 0.9rem; } .event-arrow { right: 0.8rem; } .timeline-year-separator { font-size: 1.5rem; } } /* Styles for Attribution and Last Updated */ .timeline-meta-info { position: absolute; top: 6rem; left: 1rem; z-index: 2; text-align: left; } .timeline-meta-info p { font-size: 0.8rem; color: #6b7280; margin-bottom: 0.3rem; line-height: 1.3; } .timeline-meta-info a { color: #4F46E5; text-decoration: none; transition: color 0.2s ease; } .timeline-meta-info a:hover { color: #3730a3; text-decoration: underline; } /* Responsive adjustments for meta info */ @media (max-width: 768px) { .timeline-meta-info { top: 5rem; left: 0.5rem; } .timeline-meta-info p { font-size: 0.75rem; } } /* Scroll to top button */ .scroll-top-button { position: fixed; bottom: 30px; right: 30px; width: 45px; height: 45px; border-radius: 50%; background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%); color: white; border: none; display: flex; align-items: center; justify-content: center; cursor: pointer; opacity: 0; visibility: hidden; transition: all 0.3s ease; box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3); z-index: 100; transform: translateY(20px); } .scroll-top-button.visible { opacity: 1; visibility: visible; transform: translateY(0); animation: pulse 2s infinite; } .scroll-top-button:hover { transform: translateY(-3px) scale(1.05); box-shadow: 0 8px 15px rgba(99, 102, 241, 0.4); animation: none; background: linear-gradient(135deg, #4F46E5 0%, #3730A3 100%); } .scroll-top-button:active { transform: translateY(-1px); box-shadow: 0 4px 8px rgba(99, 102, 241, 0.3); } .scroll-top-button svg { width: 20px; height: 20px; } @keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.5); } 70% { box-shadow: 0 0 0 10px rgba(99, 102, 241, 0); } 100% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0); } }