:root{--color-bg: hsl(220, 20%, 97%);--color-surface: hsl(0, 0%, 100%);--color-surface-glass: hsla(0, 0%, 100%, .7);--color-primary: #3D7BF5;--color-secondary: #0D5AF3;--color-text: hsl(220, 15%, 20%);--color-text-muted: hsl(220, 10%, 45%);--color-border: hsl(220, 15%, 85%);--space-sm: .5rem;--space-md: 1rem;--space-lg: 2rem;--space-xl: 4rem;--font-body: "Inter", system-ui, -apple-system, sans-serif;--font-heading: "Outfit", sans-serif;--transition-fast: .2s ease;--transition-smooth: .5s cubic-bezier(.25, .46, .45, .94)}[data-theme=dark]{--color-bg: hsl(220, 15%, 10%);--color-surface: hsl(220, 15%, 16%);--color-surface-glass: hsla(220, 15%, 16%, .7);--color-primary: #3D7BF5;--color-secondary: #3DD7F5;--color-text: hsl(220, 10%, 90%);--color-text-muted: hsl(220, 10%, 65%);--color-border: hsl(220, 15%, 25%)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-body);background-color:var(--color-bg);color:var(--color-text);line-height:1.6;overflow-x:hidden}h1,h2,h3{font-family:var(--font-heading);line-height:1.2}#app{width:100%;min-height:100vh;display:flex;flex-direction:column}.glass-panel{background:var(--color-surface-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--color-border);box-shadow:0 4px 20px #0006;border-radius:16px;padding:var(--space-lg);transition:transform var(--transition-fast),border-color var(--transition-fast)}.glass-panel:hover{border-color:var(--color-primary);transform:translateY(-4px)}.timeline-root{position:relative;max-width:1000px;margin:0 auto;padding:var(--space-xl) var(--space-md)}.timeline-line{position:absolute;left:50%;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,transparent,var(--color-primary),transparent);transform:translate(-50%)}.timeline-item{position:relative;width:50%;padding:0 var(--space-xl);margin-bottom:var(--space-xl);opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}.timeline-item.visible{opacity:1;transform:translateY(0)}.timeline-item.left{left:0;text-align:right}.timeline-item.right{left:50%;text-align:left}.timeline-dot{position:absolute;top:24px;width:16px;height:16px;background-color:var(--color-primary);border-radius:50%;box-shadow:0 0 10px var(--color-primary);z-index:10}.timeline-item.left .timeline-dot{right:-8px}.timeline-item.right .timeline-dot{left:-8px}.timeline-date{position:absolute;top:20px;font-family:var(--font-heading);font-weight:700;color:var(--color-secondary);font-size:1.2rem}.timeline-item.left .timeline-date{right:calc(-100% + var(--space-xl) * 2);right:-130px;text-align:left;width:100px}.timeline-item.right .timeline-date{left:-130px;text-align:right;width:100px}.timeline-content h3{margin-bottom:var(--space-sm);color:var(--color-primary)}.timeline-content p{color:var(--color-text-muted);font-size:.95rem}.tag{display:inline-block;font-size:.75rem;text-transform:uppercase;letter-spacing:1px;color:var(--color-secondary);border:1px solid var(--color-secondary);padding:2px 8px;border-radius:100px;margin-bottom:var(--space-sm)}@media(max-width:768px){.timeline-line{left:30px}.timeline-item{width:100%;left:0!important;padding-left:60px;padding-right:0;text-align:left!important}.timeline-item.left .timeline-dot,.timeline-item.right .timeline-dot{left:22px;right:auto}.timeline-item.left .timeline-date,.timeline-item.right .timeline-date{position:relative;left:0;right:auto;text-align:left;margin-bottom:var(--space-sm);display:block;top:auto;width:auto}}.controls{display:flex;justify-content:center;flex-wrap:wrap;gap:var(--space-md)}.btn,.select-input{background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text);padding:8px 16px;border-radius:8px;cursor:pointer;font-family:var(--font-body);transition:all .2s;font-size:.95rem}.btn:hover,.select-input:hover{border-color:var(--color-primary);background:var(--color-bg)}.btn.active{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.select-input{outline:none;appearance:none;background-image:url(data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%237d7d7d%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E);background-repeat:no-repeat;background-position:right 10px top 50%;background-size:.65em auto;padding-right:32px}.timeline-track{position:relative;width:100%;height:100%}.timeline-root.horizontal{overflow-x:auto;overflow-y:hidden;min-height:70vh;width:100%;max-width:none;display:block}.timeline-root.horizontal .timeline-track{display:flex;flex-direction:row;align-items:center;width:max-content;min-width:100%;padding:100px var(--space-xl)}.timeline-root.horizontal .timeline-line{inset:50% 0 auto;width:100%;position:absolute;height:2px;background:linear-gradient(to right,transparent,var(--color-primary),transparent);transform:translateY(-50%);min-width:auto}.timeline-root.horizontal .timeline-item{width:320px;flex-shrink:0;margin-bottom:0;margin-right:var(--space-xl);left:auto!important;right:auto!important;text-align:left!important;transform:translate(50px)}.timeline-root.horizontal .timeline-item.visible{transform:translate(0)}.timeline-root.horizontal .timeline-content{width:100%}.timeline-root.horizontal .timeline-item.left{margin-bottom:200px}.timeline-root.horizontal .timeline-item.right{margin-top:200px}.timeline-root.horizontal .timeline-dot{top:auto;bottom:-40px;left:50%;transform:translate(-50%);right:auto!important}.timeline-root.horizontal .timeline-item.right .timeline-dot{bottom:auto;top:-40px}.timeline-root.horizontal .timeline-date{top:auto;bottom:-70px;left:50%!important;right:auto!important;transform:translate(-50%);text-align:center!important;width:auto;display:block}.timeline-root.horizontal .timeline-item.right .timeline-date{bottom:auto;top:-70px}