@import "https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700&family=Noto+Sans+JP:wght@400;500;700&display=swap";:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:#2c3e50;--color-primary:#1e3a8a;--color-primary-hover:#172554;--color-primary-light:#eff6ff;--color-secondary:#0d9488;--color-secondary-hover:#115e59;--bg-app:#f1f5f9;--bg-card:#fff;--border-light:#cbd5e1;--text-dark:#0f172a;--text-muted:#475569;background-color:#f8fafc;font-family:Noto Sans JP,Outfit,system-ui,-apple-system,sans-serif;font-weight:400;line-height:1.6}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-app);min-height:100vh;margin:0}.app-container{flex-direction:column;gap:20px;max-width:1000px;min-height:100vh;margin:0 auto;padding:20px;display:flex}.app-header{background:var(--bg-card);border:2px solid var(--border-light);box-shadow:none;border-radius:16px;justify-content:space-between;align-items:center;padding:18px 24px;display:flex}.header-brand{align-items:center;gap:16px;display:flex}.header-icon{color:var(--color-primary)}.header-brand h1{color:var(--text-dark);font-size:1.5rem;font-weight:700}.header-subtitle{color:var(--text-muted);font-size:.85rem;font-weight:500}.app-main{flex-direction:column;flex:1;display:flex}.welcome-section{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:24px;padding:20px 0;display:flex}.upload-card{background:var(--bg-card);border:2px dashed var(--border-light);cursor:pointer;text-align:center;width:100%;max-width:580px;box-shadow:none;border-radius:24px;flex-direction:column;justify-content:center;align-items:center;padding:60px 40px;transition:background-color .2s ease-in-out,border-color .2s ease-in-out;display:flex}.upload-card:hover,.upload-card.dragging{border-color:var(--color-primary);background:var(--color-primary-light)}.upload-circle{border:2px solid var(--border-light);background:#f1f5f9;border-radius:50%;justify-content:center;align-items:center;width:76px;height:76px;margin-bottom:24px;transition:background-color .2s;display:flex}.upload-card:hover .upload-circle{border-color:var(--color-primary);background:#dbeafe}.upload-icon-arrow{color:var(--color-primary)}.upload-card h2{color:var(--text-dark);margin-bottom:12px;font-size:1.5rem;font-weight:700}.upload-card p{color:var(--text-muted);margin-bottom:8px;font-size:1rem}.upload-tip{color:var(--color-secondary);font-size:.85rem;font-weight:500}.demo-area{margin-top:10px}.result-layout{grid-template-columns:1fr 340px;align-items:start;gap:24px;display:grid}@media (width<=800px){.result-layout{grid-template-columns:1fr}}.preview-card{background:var(--bg-card);border:2px solid var(--border-light);box-shadow:none;border-radius:20px;flex-direction:column;gap:16px;padding:20px;display:flex}.preview-container{border:2px solid var(--border-light);background:#f8fafc;border-radius:12px;width:100%;position:relative;overflow:hidden}.preview-wrapper{cursor:pointer;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none;width:100%;position:relative}.preview-image{object-fit:contain;pointer-events:none;width:100%;height:100%;transition:opacity .15s ease-in-out;position:absolute;top:0;left:0}.base-image{z-index:2}.processed-canvas{z-index:1}.processing-indicator{z-index:10;color:var(--color-primary);background:#ffffffe6;flex-direction:column;justify-content:center;align-items:center;font-size:1.1rem;font-weight:700;display:flex;position:absolute;inset:0}.image-badge{background:var(--text-dark);color:#fff;z-index:5;border-radius:8px;padding:6px 14px;font-size:.85rem;font-weight:700;position:absolute;top:16px;left:16px}.preview-help{color:var(--text-muted);justify-content:center;align-items:center;gap:8px;font-size:.85rem;display:flex}.help-icon{color:var(--color-secondary)}.action-panel{background:var(--bg-card);border:2px solid var(--border-light);box-shadow:none;border-radius:20px;flex-direction:column;gap:20px;padding:24px;display:flex}.action-buttons{flex-direction:column;gap:16px;display:flex}.btn{cursor:pointer;-webkit-user-select:none;user-select:none;border:2px solid #0000;border-radius:12px;justify-content:center;align-items:center;font-family:inherit;text-decoration:none;transition:background-color .15s ease-in-out,border-color .15s ease-in-out;display:inline-flex}.btn-large{padding:16px 24px;font-size:1.1rem;font-weight:700}.btn-primary{background-color:var(--color-primary);color:#fff;border-color:var(--color-primary)}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover);border-color:var(--color-primary-hover)}.btn-primary:disabled{color:#94a3b8;cursor:not-allowed;background-color:#cbd5e1;border-color:#cbd5e1}.btn-shadow{box-shadow:none}.btn-secondary{background-color:var(--color-primary-light);color:var(--color-primary);border-color:var(--border-light)}.btn-secondary:hover:not(:disabled){border-color:var(--color-primary);background-color:#dbeafe}.btn-outline{color:var(--text-muted);border-color:var(--border-light);background-color:#0000}.btn-outline:hover{color:var(--text-dark);border-color:var(--text-dark);background-color:#f1f5f9}.safety-hint{color:var(--text-muted);text-align:center;font-size:.8rem;line-height:1.5}.loader-overlay,.error-overlay{z-index:100;background:#f1f5f9f2;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.loader-card,.error-card{background:var(--bg-card);border:2px solid var(--border-light);text-align:center;width:100%;max-width:480px;box-shadow:none;border-radius:24px;flex-direction:column;align-items:center;padding:40px 30px;display:flex}.loader-card h2{color:var(--text-dark);margin-top:20px;margin-bottom:12px;font-size:1.4rem;font-weight:700}.loader-card p{color:var(--text-muted);margin-bottom:24px;font-size:.95rem}.spinner{border:4px solid #e2e8f0;border-left-color:var(--color-primary);border-radius:50%;width:50px;height:50px;animation:1s linear infinite spin}.progress-container{flex-direction:column;gap:8px;width:100%;display:flex}.progress-track{border:2px solid var(--border-light);background:#f1f5f9;border-radius:9999px;width:100%;height:10px;overflow:hidden}.progress-fill{background-color:var(--color-primary);border-radius:9999px;height:100%;transition:width .2s ease-out}.progress-text{color:var(--color-primary);font-size:.9rem;font-weight:700}@keyframes spin{to{transform:rotate(360deg)}}.spin{animation:1s linear infinite spin}.accordion-wrapper{border:2px solid var(--border-light);background-color:var(--bg-card);text-align:left;border-radius:12px;overflow:hidden}.accordion-header{width:100%;color:var(--text-dark);cursor:pointer;background-color:#f8fafc;border:none;justify-content:space-between;align-items:center;padding:14px 18px;font-family:inherit;font-size:.95rem;font-weight:700;transition:background-color .15s ease-in-out;display:flex}.accordion-header:hover{background-color:#f1f5f9}.accordion-body{border-top:2px solid var(--border-light);background-color:#fff;flex-direction:column;gap:16px;padding:16px 18px;display:flex}.slider-group{flex-direction:column;gap:6px;display:flex}.slider-label{color:var(--text-dark);align-items:center;gap:6px;font-size:.85rem;font-weight:700;display:flex}.slider-icon{flex-shrink:0}.slider-value{border:1px solid var(--border-light);color:var(--color-primary);background-color:#f1f5f9;border-radius:4px;margin-left:auto;padding:1px 6px;font-family:monospace;font-size:.9rem}.btn-small{padding:8px 16px;font-size:.85rem}