:root{--bg-color:#0f172a;--surface-color:#1e293bb3;--border-color:#ffffff1a;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent-color:#3b82f6;--accent-hover:#60a5fa;--success-color:#10b981;--danger-color:#ef4444}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);flex-direction:column;min-height:100vh;font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;display:flex}.app-container{width:100vw;height:100vh;display:flex;overflow:hidden}.sidebar{background:var(--surface-color);-webkit-backdrop-filter:blur(16px);border-right:1px solid var(--border-color);flex-direction:column;gap:16px;padding:24px;display:flex;overflow-y:auto}.sidebar h1{background:linear-gradient(135deg,#60a5fa,#c084fc);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:4px;font-size:1.5rem;font-weight:700}.tabs{background:#0003;border-radius:8px;gap:8px;margin-bottom:8px;padding:4px;display:flex}.tab-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:6px;flex:1;padding:8px;font-weight:600;transition:all .2s}.tab-btn.active{background:var(--accent-color);color:#fff}.control-group{flex-direction:column;gap:6px;display:flex}.control-group label{color:var(--text-secondary);font-size:.8rem;font-weight:600}textarea{border:1px solid var(--border-color);resize:vertical;border-radius:8px;width:100%;height:100px;padding:12px;font-family:inherit;transition:border-color .2s;color:#fff!important;background:#1e293b!important}textarea:focus{border-color:var(--accent-color);outline:none}select,input[type=number],input[type=color],input[type=text]{border:1px solid var(--border-color);appearance:none;border-radius:8px;width:100%;padding:8px 10px;font-family:inherit;color:#fff!important;background:#1e293b!important}input[type=color]{cursor:pointer;height:36px;padding:2px}.settings-grid,.color-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.toggles{background:#0000001a;border-radius:8px;flex-direction:column;gap:8px;padding:12px;display:flex}.toggle-group{align-items:center;gap:12px;display:flex}.toggle-group input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent-color)}.toggle-group label{margin-bottom:0;font-size:.85rem}.file-upload{position:relative;overflow:hidden}.file-upload input[type=file]{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;top:0;left:0}.btn{cursor:pointer;text-align:center;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-weight:600;transition:all .2s;display:flex}.btn-primary{background:var(--accent-color);color:#fff}.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px)}.btn-secondary{color:#fff;background:#ffffff1a}.btn-secondary:hover{background:#fff3}.btn-danger{background:var(--danger-color);color:#fff;padding:14px;font-size:1.1rem}.btn-danger:hover{filter:brightness(1.2)}.preview-area{background:#050505;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:20px;display:flex;position:relative}.canvas-container{background-color:#1a1a1a;background-image:linear-gradient(45deg,#333 25%,#0000 25%),linear-gradient(-45deg,#333 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#333 75%),linear-gradient(-45deg,#0000 75%,#333 75%);background-position:0 0,0 10px,10px -10px,-10px 0;background-size:20px 20px;border:1px solid #333;border-radius:12px;display:flex;overflow:hidden;box-shadow:0 20px 40px #000c}.download-popup{background:var(--surface-color);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border-color);text-align:center;border-radius:12px;padding:20px;animation:.3s ease-out slideUp;position:absolute;bottom:40px;box-shadow:0 10px 30px #00000080}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.download-link{color:var(--text-primary);background:var(--success-color);border-radius:8px;margin-bottom:8px;padding:12px 24px;font-size:1.1rem;font-weight:700;text-decoration:none;display:inline-block}.download-link:hover{filter:brightness(1.1)}.hint{color:var(--text-secondary);font-size:.8rem}.srt-editor{background:#0003;border-radius:8px;flex-direction:column;flex:1;margin-top:10px;padding:12px 12px 100px;display:flex;overflow-y:auto}.srt-list{flex-direction:column;gap:8px;display:flex}.srt-block{background:var(--surface-color);border:1px solid var(--border-color);border-radius:8px;padding:10px;transition:all .2s}.srt-block.expanded{border-color:var(--accent-color)}.srt-block-header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.srt-time{color:var(--text-secondary);background:#0000004d;border-radius:4px;padding:2px 6px;font-family:monospace;font-size:.8rem}.btn-icon{color:var(--accent-color);cursor:pointer;background:0 0;border:none;font-size:.8rem;font-weight:600}.srt-textarea{resize:vertical;width:100%;height:60px;font-size:.9rem}.srt-overrides{border-top:1px dashed var(--border-color);margin-top:12px;padding-top:12px}.btn-small{color:#fff;cursor:pointer;background:#ffffff1a;border:none;border-radius:4px;padding:4px 8px;font-size:.8rem}.btn-small:hover{background:#fff3}.font-code{font-family:JetBrains Mono,monospace}.font-title-md,.font-label-md,.font-display,.font-title-lg,.font-headline-md,.font-body-md,.font-body-lg{font-family:Geist,sans-serif}.text-code{font-size:13px;font-weight:400;line-height:20px}.text-title-md{letter-spacing:-.01em;font-size:16px;font-weight:600;line-height:24px}.text-label-md{letter-spacing:.02em;font-size:12px;font-weight:500;line-height:16px}.text-display{letter-spacing:-.05em;font-size:48px;font-weight:700;line-height:1.1}.text-title-lg{letter-spacing:-.01em;font-size:20px;font-weight:600;line-height:28px}.text-headline-md{letter-spacing:-.02em;font-size:24px;font-weight:600;line-height:32px}.text-body-md{font-size:14px;font-weight:400;line-height:20px}.text-body-lg{font-size:16px;font-weight:400;line-height:26px}@keyframes shimmer{0%{transform:translate(-150%)skew(-12deg)}to{transform:translate(150%)skew(-12deg)}}.hide-scrollbar{-ms-overflow-style:none;scrollbar-width:none}.hide-scrollbar::-webkit-scrollbar{display:none}