:root{--bg-color: #0f1115;--panel-bg: #1a1d24;--text-primary: #ffffff;--text-secondary: #a1a1aa;--accent-color: #3b82f6;--accent-hover: #60a5fa;--border-color: #272a30;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;color:var(--text-primary);background-color:var(--bg-color);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;padding:0;overflow:hidden;width:100vw;height:100vh}#root{width:100%;height:100%;position:relative}.timeline-container{position:absolute;bottom:30px;left:50%;transform:translate(-50%);background:rgba(26,29,36,.85);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:16px 24px;border-radius:16px;border:1px solid var(--border-color);box-shadow:0 10px 40px #0006;display:flex;flex-direction:column;gap:12px;width:90%;max-width:600px;z-index:10;transition:all .3s ease}.timeline-header{display:flex;justify-content:space-between;align-items:center}.timeline-title{font-size:.9rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.timeline-date{font-size:1.1rem;font-weight:700;color:var(--text-primary)}.timeline-track{position:relative;height:4px;background:rgba(255,255,255,.1);border-radius:2px;margin:10px 0;cursor:pointer}.timeline-progress{position:absolute;top:0;left:0;height:100%;background:var(--accent-color);border-radius:2px;transition:width .3s ease}.timeline-stops{display:flex;justify-content:space-between;width:100%;position:absolute;top:50%;transform:translateY(-50%);pointer-events:none}.timeline-stop{width:12px;height:12px;border-radius:50%;background:var(--panel-bg);border:2px solid rgba(255,255,255,.3);transition:all .2s ease;pointer-events:auto;cursor:pointer}.timeline-stop:hover{transform:scale(1.2);border-color:var(--accent-hover)}.timeline-stop.active{background:var(--accent-color);border-color:var(--accent-color);box-shadow:0 0 10px var(--accent-color)}.ui-panel{position:absolute;top:20px;left:20px;background:rgba(26,29,36,.85);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:20px;border-radius:12px;border:1px solid var(--border-color);color:var(--text-primary);width:300px;z-index:10}.ui-title{font-size:1.25rem;font-weight:700;margin-bottom:8px}.ui-desc{font-size:.875rem;color:var(--text-secondary)}.loading-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:var(--bg-color);display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:50;transition:opacity .5s ease}.loading-spinner{width:40px;height:40px;border:3px solid rgba(255,255,255,.1);border-top-color:var(--accent-color);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:16px}@keyframes spin{to{transform:rotate(360deg)}}.hidden{opacity:0;pointer-events:none}.drag-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(59,130,246,.2);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;display:flex;justify-content:center;align-items:center;border:4px dashed var(--accent-color);pointer-events:none}.drag-content{background:var(--panel-bg);padding:24px 48px;border-radius:12px;font-size:1.5rem;font-weight:600;color:var(--text-primary);box-shadow:0 10px 40px #0006}.empty-state{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:rgba(26,29,36,.85);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:40px;border-radius:16px;border:1px dashed var(--text-secondary);text-align:center;z-index:5;color:var(--text-secondary);pointer-events:none}.empty-state h2{color:var(--text-primary);margin-bottom:12px}