@import "https://fonts.googleapis.com/css2?family=Pretendard:wght@300;400;500;600;700&display=swap";:root{--bg-gradient:linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);--surface-bg:#1e293bb3;--surface-border:#ffffff1a;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent-color:#6366f1;--accent-hover:#4f46e5;--success-color:#10b981;--error-color:#ef4444}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-gradient);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;justify-content:center;align-items:center;min-height:100vh;font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;display:flex}#root{width:100%;max-width:800px;padding:2rem}button{cursor:pointer;border:none;outline:none;font-family:inherit;transition:all .2s}.glass-panel{background:var(--surface-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--surface-border);border-radius:1.5rem;padding:2.5rem;box-shadow:0 25px 50px -12px #00000080}.fade-in{animation:.5s ease-out forwards fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.app-container{flex-direction:column;gap:2rem;width:100%;display:flex}.header{text-align:center;margin-bottom:1rem}.header h1{background:linear-gradient(90deg,#818cf8,#c084fc);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:.5rem;font-size:2.5rem;font-weight:700}.header p{color:var(--text-secondary);font-size:1.1rem}.upload-area{border:2px dashed var(--accent-color);text-align:center;cursor:pointer;background:#6366f10d;border-radius:1rem;flex-direction:column;align-items:center;gap:1rem;padding:3rem 2rem;transition:all .3s;display:flex}.upload-area:hover,.upload-area.drag-active{border-color:var(--accent-hover);background:#6366f11a;transform:scale(1.02)}.upload-icon{color:var(--accent-color);width:48px;height:48px}.upload-text{font-size:1.2rem;font-weight:500}.upload-hint{color:var(--text-secondary);font-size:.9rem}.file-input{display:none}.preview-container{flex-direction:column;align-items:center;gap:1.5rem;width:100%;display:flex}.video-preview{border:1px solid var(--surface-border);border-radius:.75rem;width:100%;max-width:500px;overflow:hidden;box-shadow:0 10px 15px -3px #0000001a}.video-preview video,.video-preview img{width:100%;height:auto;display:block}.progress-container{background:#0003;border-radius:9999px;width:100%;height:12px;position:relative;overflow:hidden}.progress-bar{background:linear-gradient(90deg, var(--accent-color), var(--success-color));height:100%;transition:width .3s}.status-text{color:var(--text-secondary);text-align:center;font-size:.95rem;font-weight:500}.action-buttons{justify-content:center;gap:1rem;width:100%;display:flex}.btn{border-radius:.5rem;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;transition:all .2s;display:flex}.btn-primary{background:var(--accent-color);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 4px 12px #6366f166}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{color:var(--text-primary);border:1px solid var(--surface-border);background:#ffffff1a}.btn-secondary:hover:not(:disabled){background:#fff3}.loading-spinner{animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.options-container{border:1px solid var(--surface-border);background:#ffffff0d;border-radius:.5rem;align-items:center;gap:1rem;margin-bottom:1rem;padding:.75rem 1.5rem;display:flex}.resolution-select{color:var(--text-primary);border:1px solid var(--accent-color);cursor:pointer;background:#0f172acc;border-radius:.25rem;outline:none;padding:.5rem 1rem;font-family:inherit;font-size:.95rem}.resolution-select:focus{border-color:var(--accent-hover)}