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kbd{background:var(--bg-tertiary);border:1px solid var(--border);padding:1px 5px;border-radius:3px;font-family:JetBrains Mono,monospace;font-size:10px;color:var(--text-secondary)}.toast{position:fixed;top:60px;right:16px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);padding:12px 16px;font-size:13px;color:var(--text-primary);box-shadow:var(--shadow-lg);z-index:1000;display:none;align-items:center;gap:10px;transform:translate(120%);transition:transform .3s cubic-bezier(.16,1,.3,1)}.toast.visible{display:flex;transform:translate(0)}.toast .toast-icon{font-size:16px}@supports (height: 100dvh){.app,body{height:100dvh}}.mobile-add-media{display:none}.mobile-nav{display:none;background:var(--bg-secondary);border-top:1px solid var(--border-subtle);padding:4px 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svg{width:18px;height:18px}.topbar-right{gap:4px}.btn-export{padding:7px 10px;font-size:0;gap:0}.btn-export svg{width:16px;height:16px}.editor{grid-template-columns:1fr;position:relative}.panel-left,.panel-right{position:fixed;top:44px;left:0;right:0;bottom:52px;z-index:200;border:none;transform:translateY(100%);transition:transform .3s cubic-bezier(.16,1,.3,1);overflow-y:auto;pointer-events:none}.panel-left.mobile-visible,.panel-right.mobile-visible{transform:translateY(0);pointer-events:auto}.panel-right{border-left:none}.media-drop-zone{padding:20px 16px;margin:8px}.media-drop-zone svg{width:28px;height:28px}.mobile-add-media{display:flex;align-items:center;justify-content:center;position:absolute;top:14px;right:14px;z-index:10;width:40px;height:40px;background:var(--accent);color:#fff;border:none;border-radius:50%;cursor:pointer;box-shadow:var(--shadow-md);-webkit-tap-highlight-color:transparent;transition:var(--transition)}.mobile-add-media:active{transform:scale(.92)}.mobile-add-media svg{width:20px;height:20px}.center-area{min-height:0}.preview-container{padding:8px}.canvas-wrapper{border-radius:var(--radius-sm)}.canvas-empty svg{width:36px;height:36px}.canvas-empty p{font-size:12px}.transport{padding:8px 10px;gap:2px}.transport-btn{width:40px;height:40px;-webkit-tap-highlight-color:transparent}.transport-btn.play-btn{width:48px;height:48px}.transport-btn.play-btn svg{width:20px;height:20px}.timecode{font-size:11px;margin:0 6px;min-width:90px}.timeline-resize{display:none}.timeline-area{height:auto;min-height:0;max-height:50vh;position:fixed;bottom:52px;left:0;right:0;z-index:200;transform:translateY(100%);transition:transform .3s cubic-bezier(.16,1,.3,1);border-radius:var(--radius-lg) var(--radius-lg) 0 0;box-shadow:0 -4px 20px #0006;pointer-events:none}.timeline-area.mobile-visible{transform:translateY(0);pointer-events:auto}.timeline-toolbar{padding:8px 10px}.tl-tool{width:36px;height:34px;-webkit-tap-highlight-color:transparent}.tl-tool svg{width:16px;height:16px}.track{height:56px}.track-label{width:60px;font-size:9px;padding:0 6px;gap:4px}.track-label svg{width:10px;height:10px}.clip{top:4px;height:calc(100% - 8px);padding:0 8px;font-size:10px;min-width:50px}.clip-handle{width:14px}input[type=range]{height:6px}input[type=range]::-webkit-slider-thumb{width:20px;height:20px}.toggle{width:42px;height:24px}.toggle:after{width:18px;height:18px;top:2px;left:2px}.toggle.active:after{left:20px}.aspect-btn{padding:8px 4px;font-size:12px}.modal{width:calc(100% - 24px);max-width:440px}.context-menu{position:fixed;bottom:52px;left:0;right:0;top:auto;border-radius:var(--radius-lg) var(--radius-lg) 0 0;padding:8px;padding-bottom:env(safe-area-inset-bottom,8px);min-width:100%}.context-menu.visible{display:block}.ctx-item{padding:12px 14px;font-size:14px;gap:12px}.ctx-item svg{width:16px;height:16px}.toast{top:auto;bottom:110px;right:16px;left:16px;transform:translateY(200%);text-align:center;justify-content:center;z-index:350}.toast.visible{transform:translateY(0)}[data-tooltip]:hover:after{display:none}}@media(max-width:400px){.topbar-center{gap:0}.topbar-btn{padding:6px}.transport{gap:0}.timecode{font-size:10px;min-width:80px;margin:0 4px}.modal{width:calc(100% - 16px)}.export-format-grid{grid-template-columns:1fr 1fr;gap:6px}.format-card{padding:10px}}@media(max-height:500px)and (orientation:landscape){.app{grid-template-rows:40px 1fr auto}.topbar{padding:0 8px}.preview-container{padding:4px 8px}.transport{padding:4px 10px}.transport-btn{width:32px;height:32px}.transport-btn.play-btn{width:38px;height:38px}.timeline-area{max-height:40vh}.mobile-nav-btn{padding:4px 12px}.mobile-nav-btn svg{width:18px;height:18px}}