*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-primary: #6366f1;--color-primary-hover: #4f46e5;--color-secondary: #e5e7eb;--color-secondary-hover: #d1d5db;--color-bg: #f9fafb;--color-surface: #ffffff;--color-text: #111827;--color-muted: #6b7280;--color-error: #ef4444;--radius: 1rem;--shadow: 0 4px 24px rgba(0, 0, 0, .08);font-size:16px}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--color-bg);color:var(--color-text);min-height:100dvh;-webkit-tap-highlight-color:transparent}.page{min-height:100dvh;display:flex;flex-direction:column;align-items:center;padding:2rem 1rem 3rem;gap:1.5rem}.header{text-align:center}.logo{font-size:2rem;font-weight:800;color:var(--color-primary);letter-spacing:-.02em}.tagline{margin-top:.25rem;color:var(--color-muted);font-size:.95rem}.card{width:100%;max-width:480px;background:var(--color-surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.75rem 1.5rem;display:flex;flex-direction:column;gap:1.25rem}.upload-zone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;border:2px dashed var(--color-secondary-hover);border-radius:.75rem;padding:2.5rem 1rem;cursor:pointer;transition:border-color .2s,background .2s;text-align:center}.upload-zone:hover{border-color:var(--color-primary);background:#eef2ff}.upload-icon{font-size:2.5rem;line-height:1}.upload-label{color:var(--color-muted);font-size:.9rem}.upload-source-buttons{display:flex;gap:1rem;width:100%;justify-content:center}.upload-source-btn{display:flex;flex-direction:column;align-items:center;gap:.5rem;flex:1;max-width:140px;padding:1.25rem .75rem;border:2px solid var(--color-secondary-hover);border-radius:.75rem;cursor:pointer;color:var(--color-muted);font-size:.9rem;font-weight:600;transition:border-color .2s,background .2s,color .2s}.upload-source-btn:hover{border-color:var(--color-primary);background:#eef2ff;color:var(--color-primary)}.upload-source-icon{font-size:2rem;line-height:1}.file-input{display:none}.preview-container{display:flex;flex-direction:column;align-items:center;gap:.75rem;width:100%}.preview-image-wrapper{position:relative;width:100%;line-height:0}.preview-image{width:100%;height:auto;display:block;border-radius:.75rem;background:var(--color-bg)}.zone-overlay{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border-radius:.75rem;overflow:visible;touch-action:none}.zone-handle{cursor:grab;touch-action:none}.zone-handle:active,.zone-handle--active{cursor:grabbing}.preview-actions{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap;justify-content:center}.result-box{padding:1.25rem;background:#f3f4f6;border-radius:.75rem;text-align:center}.result-text{font-size:1rem;line-height:1.6;color:var(--color-text)}.result-image{width:100%;border-radius:.75rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:none;border-radius:.6rem;font-size:1rem;font-weight:600;padding:.85rem 1.5rem;cursor:pointer;transition:background .2s,opacity .2s;width:100%}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:var(--color-secondary);color:var(--color-text)}.btn-secondary:hover:not(:disabled){background:var(--color-secondary-hover)}.btn-sm{font-size:.85rem;padding:.5rem 1rem;width:auto}.btn-zone{background:#fee2e2;color:#b91c1c;width:auto;font-size:.9rem;padding:.5rem 1.1rem}.btn-zone:hover:not(:disabled){background:#fecaca}.spinner{display:inline-block;width:1rem;height:1rem;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-message{color:var(--color-error);font-size:.875rem;text-align:center}@media(min-width:640px){.logo{font-size:2.5rem}}