:root{--color-primary: #6366f1;--color-primary-dark: #4f46e5;--color-primary-light: #818cf8;--color-secondary: #8b5cf6;--color-accent: #ec4899;--gradient-aotix: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);--gradient-glow: rgba(99, 102, 241, .35);--gradient-card: linear-gradient(180deg, rgba(30, 41, 59, .45) 0%, rgba(15, 23, 42, .6) 100%);--color-text: #f8fafc;--color-text-muted: #94a3b8;--color-text-dim: #64748b;--bg-main: #0b0f19;--bg-panel: rgba(15, 23, 42, .88);--bg-input: rgba(30, 41, 59, .7);--bg-input-hover: rgba(51, 65, 85, .85);--border-card: rgba(255, 255, 255, .08);--border-subtle: rgba(255, 255, 255, .05);--border-glow: rgba(99, 102, 241, .45);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .25);--shadow-md: 0 12px 32px rgba(0, 0, 0, .45);--shadow-glow: 0 0 25px rgba(99, 102, 241, .35);--font-sans: "Inter", "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace}*{box-sizing:border-box;margin:0;padding:0;-webkit-font-smoothing:antialiased}html,body{width:100vw;height:100vh;margin:0;padding:0;background-color:var(--bg-main);background-image:radial-gradient(circle at 15% 15%,rgba(99,102,241,.18) 0%,transparent 45%),radial-gradient(circle at 85% 85%,rgba(236,72,153,.14) 0%,transparent 45%);color:var(--color-text);font-family:var(--font-sans);overflow:hidden}.app-container{display:flex;flex-direction:column;width:100vw;height:100vh;min-height:0;margin:0;padding:0}.topbar{display:flex;align-items:center;justify-content:space-between;width:100%;height:70px;padding:0 28px;border-bottom:1px solid var(--border-card);background:#0b0f19e6;backdrop-filter:blur(24px);flex:none;z-index:30}.brand{display:flex;align-items:center;gap:16px}.logo-link{display:flex;align-items:center;gap:6px;text-decoration:none;transition:transform .2s ease}.logo-link:hover{transform:scale(1.03)}.logo-text{font-size:24px;font-weight:900;letter-spacing:-.04em;background:var(--gradient-aotix);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.logo-dot{width:7px;height:7px;border-radius:50%;background:var(--color-accent);box-shadow:0 0 10px var(--color-accent)}.brand-divider{height:20px;width:1px;background:var(--border-card)}.brand-info{display:flex;align-items:center;gap:10px}.brand-title{font-size:15px;font-weight:700;color:#e2e8f0;letter-spacing:-.02em}.brand-badge{font-size:10px;font-weight:800;color:#fff;background:linear-gradient(135deg,#6366f166,#ec489966);border:1px solid rgba(255,255,255,.15);padding:3px 8px;border-radius:var(--radius-full);letter-spacing:.04em}.topbar-actions{display:flex;align-items:center;gap:10px}.btn-top-action{display:flex;align-items:center;gap:6px;padding:7px 14px;background:#ffffff12;border:1px solid var(--border-card);border-radius:var(--radius-full);color:#e2e8f0;font-size:12px;font-weight:600;cursor:pointer;transition:all .2s ease}.btn-top-action:hover{background:#ffffff26;border-color:#ffffff40;color:#fff;transform:translateY(-1px)}.btn-primary-action{background:#6366f133;border-color:var(--color-primary-light);color:#fff}.btn-primary-action:hover{background:#6366f159;box-shadow:0 0 12px #6366f14d}.privacy-badge{font-size:12px;font-weight:600;color:var(--color-text-muted);background:#ffffff0a;padding:7px 16px;border-radius:var(--radius-full);display:flex;align-items:center;gap:8px;border:1px solid var(--border-card);backdrop-filter:blur(8px)}.status-pulse{display:inline-block;width:7px;height:7px;border-radius:50%;background-color:#10b981;box-shadow:0 0 8px #10b981;animation:pulse 2s infinite ease-in-out}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.85)}}.workspace{display:grid;grid-template-columns:1fr 410px;flex:1;min-height:0;width:100%;margin:0;border-top:none;border-bottom:1px solid var(--border-card);background:var(--bg-panel);backdrop-filter:blur(24px);overflow:hidden}.viewer{display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;background:#04070ed9;overflow:hidden;user-select:none;height:100%}.viewer.dragover{background:#6366f11f;border:2px dashed var(--color-primary-light)}.viewer-tabs{position:absolute;top:18px;left:50%;transform:translate(-50%);display:flex;background:#0f172ae6;border:1px solid var(--border-card);border-radius:var(--radius-full);padding:4px;gap:4px;backdrop-filter:blur(16px);z-index:20;box-shadow:0 4px 16px #0006}.viewer-tab{display:flex;align-items:center;gap:7px;padding:7px 16px;border:none;background:transparent;color:var(--color-text-muted);font-size:12px;font-weight:700;border-radius:var(--radius-full);cursor:pointer;transition:all .2s ease}.viewer-tab:hover:not(:disabled){color:#fff;background:#ffffff0f}.viewer-tab.active{color:#fff;background:var(--gradient-aotix);box-shadow:0 2px 10px #6366f166}.viewer-tab:disabled{opacity:.35;cursor:not-allowed}.result-indicator{width:6px;height:6px;border-radius:50%;background:#10b981}.dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:56px 64px;background:#ffffff05;border:2px dashed rgba(255,255,255,.12);border-radius:var(--radius-lg);cursor:pointer;transition:all .3s cubic-bezier(.16,1,.3,1);text-align:center;max-width:520px}.dropzone:hover{border-color:var(--color-primary);background:#6366f112;box-shadow:var(--shadow-glow);transform:translateY(-2px)}.dropzone-icon-wrap{width:72px;height:72px;border-radius:20px;background:linear-gradient(135deg,#6366f126,#ec489926);border:1px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center}.dropzone-icon{width:38px;height:38px;color:var(--color-primary-light)}.dropzone-title{font-size:19px;font-weight:800;color:#fff;letter-spacing:-.03em}.dropzone-sub{font-size:13px;color:var(--color-text-muted);font-weight:500}.dropzone-tags{display:flex;gap:6px;margin-top:6px}.dropzone-tags span{font-size:11px;font-weight:600;color:var(--color-text-muted);background:#ffffff0d;border:1px solid rgba(255,255,255,.08);padding:3px 10px;border-radius:var(--radius-full)}.stage{position:relative;display:flex;align-items:center;justify-content:center;max-width:100%;max-height:100%;width:auto;height:auto;margin-top:24px}.stage video{max-width:100%;max-height:100%;object-fit:contain;display:block;border-radius:var(--radius-sm);box-shadow:0 12px 48px #000000b3}.play-toggle{position:absolute;top:18px;left:18px;width:44px;height:44px;border-radius:var(--radius-full);background:#111827d9;backdrop-filter:blur(12px);border:1px solid var(--border-glow);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:10;transition:all .2s ease;box-shadow:0 4px 16px #0006}.play-toggle:hover{background:var(--color-primary);border-color:#fff;transform:scale(1.08);box-shadow:0 0 20px var(--gradient-glow)}.result-badge-overlay{position:absolute;bottom:18px;right:18px;background:#10b981d9;color:#fff;font-size:11px;font-weight:700;padding:5px 12px;border-radius:var(--radius-full);backdrop-filter:blur(8px);box-shadow:0 4px 12px #0000004d}.roi-box{position:absolute;border:2px solid var(--color-primary-light);background:#6366f138;box-shadow:0 0 20px #6366f166,inset 0 0 12px #ec489933;cursor:move;z-index:5;box-sizing:border-box;border-radius:4px}.roi-label{position:absolute;top:-26px;left:0;font-size:11px;color:#fff;background:var(--gradient-aotix);padding:3px 9px;border-radius:4px;white-space:nowrap;pointer-events:none;font-weight:700;box-shadow:0 2px 8px #0000004d}.roi-handle{position:absolute;width:12px;height:12px;background:#fff;border:2.5px solid var(--color-primary);border-radius:3px;box-shadow:0 2px 6px #0006}.roi-handle.nw{top:-6px;left:-6px;cursor:nwse-resize}.roi-handle.ne{top:-6px;right:-6px;cursor:nesw-resize}.roi-handle.sw{bottom:-6px;left:-6px;cursor:nesw-resize}.roi-handle.se{bottom:-6px;right:-6px;cursor:nwse-resize}.panel{display:flex;flex-direction:column;padding:24px;border-left:1px solid var(--border-card);background:#0f172ab3;overflow-y:auto}.panel-header{padding-bottom:16px;border-bottom:1px solid var(--border-card);display:flex;align-items:center;justify-content:space-between}.panel-title{font-size:15px;font-weight:800;color:#fff;display:flex;align-items:center;gap:8px}.video-meta-badge{font-family:var(--font-mono);font-size:11px;font-weight:600;color:var(--color-text-muted);background:#ffffff0d;padding:4px 10px;border-radius:var(--radius-full);border:1px solid var(--border-card)}.control-section{margin-top:16px}.section-label-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.section-label{font-size:12px;font-weight:700;color:#cbd5e1;text-transform:uppercase;letter-spacing:.02em}.btn-reset-coords{background:transparent;border:none;color:var(--color-primary-light);font-size:11px;font-weight:600;cursor:pointer;padding:2px 6px;border-radius:4px;transition:all .2s ease}.btn-reset-coords:hover{background:#6366f126;color:#fff}.select-input{width:100%;padding:11px 14px;background:var(--bg-input);border:1px solid var(--border-card);border-radius:var(--radius-md);color:#f8fafc;font-size:13px;font-weight:600;outline:none;cursor:pointer;transition:all .2s ease}.select-input:focus{border-color:var(--color-primary-light);background:var(--bg-input-hover);box-shadow:0 0 0 3px #6366f140}.engine-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:6px}.engine-btn{display:flex;flex-direction:column;align-items:flex-start;gap:3px;padding:10px 12px;background:var(--bg-input);border:1px solid var(--border-card);border-radius:var(--radius-md);color:#e2e8f0;cursor:pointer;transition:all .2s ease;text-align:left}.engine-btn b{font-size:12px;font-weight:700}.engine-btn small{font-size:10px;font-weight:600;color:var(--color-text-dim)}.engine-btn:hover{background:var(--bg-input-hover)}.engine-btn.active{border-color:var(--color-primary-light);background:linear-gradient(135deg,#6366f140,#ec489926);box-shadow:0 0 14px #6366f140}.engine-btn.active b{color:#fff}.engine-btn.active small{color:var(--color-primary-light)}.precision-mode-badge{grid-column:span 2;display:flex;flex-direction:column;align-items:flex-start;gap:3px;padding:12px 14px;background:linear-gradient(135deg,#6366f140,#ec489933);border:1px solid var(--color-primary-light);border-radius:var(--radius-md);color:#fff;box-shadow:0 0 14px #6366f140}.precision-mode-badge b{font-size:13px;font-weight:800;color:#fff}.precision-mode-badge small{font-size:10px;font-weight:700;color:var(--color-primary-light)}.control-group{display:flex;flex-direction:column;gap:12px;margin-top:8px;background:var(--gradient-card);padding:16px 14px;border-radius:var(--radius-md);border:1px solid var(--border-card)}.slider-row{display:flex;flex-direction:column;gap:6px}.slider-header{display:flex;justify-content:space-between;font-size:12px;font-weight:600;color:var(--color-text-muted)}.slider-header span.val{font-family:var(--font-mono);font-weight:700;color:#f8fafc}input[type=range]{width:100%;height:5px;background:#334155;border-radius:3px;appearance:none;outline:none}input[type=range]::-webkit-slider-thumb{appearance:none;width:18px;height:18px;border-radius:50%;background:#fff;border:2px solid var(--color-primary);cursor:pointer;box-shadow:0 2px 8px #0006;transition:transform .15s ease}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.18);box-shadow:0 0 12px var(--color-primary-light)}.btn-primary{width:100%;height:48px;margin-top:18px;background:var(--gradient-aotix);color:#fff;border:none;border-radius:var(--radius-md);font-size:14px;font-weight:800;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .25s cubic-bezier(.16,1,.3,1);box-shadow:0 4px 18px var(--gradient-glow)}.btn-primary:hover:not(:disabled){opacity:.95;transform:translateY(-1.5px);box-shadow:0 6px 26px #6366f18c}.btn-primary:disabled{background:#1e293b;color:#64748b;cursor:not-allowed;box-shadow:none}.result-actions{display:flex;flex-direction:column;gap:8px;margin-top:14px}.btn-download{width:100%;height:48px;background:#fff;color:#0f172a;border:none;border-radius:var(--radius-md);font-size:14px;font-weight:800;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;transition:all .2s ease;box-shadow:0 4px 16px #ffffff2e}.btn-download:hover{background:#f1f5f9;transform:translateY(-1px);box-shadow:0 6px 20px #ffffff40}.btn-preview-toggle{width:100%;height:40px;background:#6366f11f;border:1px solid var(--color-primary-light);border-radius:var(--radius-md);color:#fff;font-size:13px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;transition:all .2s ease}.btn-preview-toggle:hover{background:#6366f140;transform:translateY(-1px)}.progress-bar{height:5px;background:#1e293b;border-radius:var(--radius-full);margin-top:14px;overflow:hidden;display:none}.progress-bar-inner{height:100%;width:0%;background:var(--gradient-aotix);border-radius:var(--radius-full);transition:width .2s ease}.status-log{font-size:12px;font-weight:600;color:var(--color-text-muted);margin-top:12px;line-height:1.5;word-break:break-all;background:#1e293b99;padding:10px 12px;border-radius:var(--radius-sm);border-left:3px solid var(--color-primary)}footer{display:flex;align-items:center;justify-content:space-between;width:100%;height:48px;padding:0 28px;font-size:12px;font-weight:500;color:var(--color-text-dim);border-top:1px solid var(--border-card);background:#0b0f19e6;backdrop-filter:blur(16px);flex:none;z-index:20}.footer-left{display:flex;align-items:center;gap:10px}.footer-brand{font-weight:800;color:#cbd5e1;letter-spacing:-.02em}.footer-desc{color:var(--color-text-dim)}.footer-right{display:flex;align-items:center;gap:14px}.footer-badge{font-family:var(--font-mono);font-size:11px;color:var(--color-text-dim);background:#ffffff0a;padding:3px 8px;border-radius:4px;border:1px solid var(--border-card)}.footer-link{color:var(--color-primary-light);text-decoration:none;font-weight:700;transition:all .2s ease}.footer-link:hover{color:var(--color-accent);transform:translate(2px)}@media (max-width: 900px){.workspace{grid-template-columns:1fr}.panel{border-left:none;border-top:1px solid var(--border-card)}.footer-desc{display:none}}