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260px}.video-grid{grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(3,1fr)}.telemetry-compact-row{gap:var(--spacing-md)}.gps-section{min-width:100px}}@media(max-width:768px){:root{--header-height: 50px;--sidebar-width: 100%}.app-header{padding:0 var(--spacing-md)}.btn-primary span{display:none}.btn-primary{padding:var(--spacing-sm)}.sidebar{position:fixed;top:var(--header-height);left:0;right:0;bottom:0;width:100%;transform:translate(-100%);z-index:150}.sidebar.open{transform:translate(0)}.sidebar-backdrop{display:block}.video-grid{grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(3,1fr)}.video-grid.layout-2x2{grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,1fr)}.header-left h1{font-size:.95rem}.event-info-bar{padding:var(--spacing-sm) var(--spacing-md)}.event-thumbnail{width:60px;height:40px}.event-timestamp{font-size:.9rem}.event-location{font-size:.8rem}.playback-controls{padding:var(--spacing-sm) var(--spacing-md)}.control-buttons{gap:var(--spacing-xs)}.btn-control,.btn-control.btn-play{width:36px;height:36px}.speed-select{padding:var(--spacing-xs) var(--spacing-sm);font-size:.75rem}.telemetry-panel.compact{padding:var(--spacing-xs) var(--spacing-sm)}.telemetry-compact-row{flex-wrap:nowrap;height:48px;gap:2px;padding:0}.telemetry-section{border-right:none;padding:0;min-width:0}.gear-row{flex-wrap:nowrap;justify-content:center}.status-separator{display:none}.status-display{border-left:none;padding-left:0;margin-top:0}.speed-value{font-size:1.1rem}.steering-wheel-icon{width:28px;height:28px}.pedal-bar-track{height:24px;width:20px}.welcome-content h2{font-size:1.3rem}.welcome-icon{width:60px;height:60px}}@media(max-width:480px){.video-grid{gap:1px;padding:1px}.camera-label{font-size:.6rem;padding:2px 6px}.steering-wheel-icon{width:28px;height:28px}.speed-value{font-size:1rem}}@media(max-height:500px)and (orientation:landscape){.video-grid{grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(2,1fr)}.telemetry-panel,.event-info-bar{display:none}.playback-controls{padding:var(--spacing-xs) var(--spacing-md);padding-bottom:calc(var(--spacing-xs) + env(safe-area-inset-bottom))}.progress-container{margin-bottom:var(--spacing-xs)}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-bg-secondary)}::-webkit-scrollbar-thumb{background:var(--color-bg-elevated);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--color-bg-hover)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideIn{0%{transform:translateY(10px);opacity:0}to{transform:translateY(0);opacity:1}}.fade-in{animation:fadeIn var(--transition-normal) ease}.slide-in{animation:slideIn var(--transition-normal) ease}.loading-overlay{position:fixed;inset:0;background:#0a0a0fd9;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-lg);z-index:300}.loading-spinner{width:48px;height:48px;border:3px solid var(--color-bg-tertiary);border-top-color:var(--color-accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-message{font-size:.9rem;color:var(--color-text-secondary);text-align:center;max-width:80%}.error-toast,.warning-toast{position:fixed;bottom:var(--spacing-lg);left:50%;transform:translate(-50%);padding:var(--spacing-md) var(--spacing-xl);border-radius:var(--radius-md);font-size:.9rem;font-weight:500;box-shadow:var(--shadow-lg);z-index:200;animation:slideIn var(--transition-normal) ease;max-width:90%;text-align:center}.error-toast{background:var(--color-bg-elevated);border:1px solid var(--color-accent);color:var(--color-accent)}.warning-toast{background:var(--color-bg-elevated);border:1px solid var(--color-warning);color:var(--color-warning);display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-md)}.toast-dismiss{display:flex;align-items:center;justify-content:center;background:none;border:none;color:inherit;cursor:pointer;padding:4px;border-radius:4px;opacity:.7;transition:opacity var(--transition-fast),background var(--transition-fast)}.toast-dismiss:hover{opacity:1;background:#0000001a}.toast-dismiss svg{width:16px;height:16px}