:root{--primary:#4f46e5;--primary-hover:#4338ca;--secondary:#f3f4f6;--secondary-hover:#e5e7eb;--text:#111827;--text-light:#6b7280;--border:#e5e7eb;--bg-light:#f9fafb;--error:#ef4444;--success:#10b981;--warning:#f59e0b;--card-shadow:0 4px 6px rgba(0,0,0,0.05);--page-shadow:0 2px 4px rgba(0,0,0,0.1);--transition:all .3s cubic-bezier(0.25,0.8,0.25,1)}*{box-sizing:border-box;margin:0;padding:0}.containert{max-width:85%;margin:100px auto;background:white;border-radius:16px;box-shadow:var(--page-shadow);overflow:hidden}.header-t{padding:24px;border-bottom:1px solid var(--border);text-align:center;background:white;color:var(--primary)}.header-t h1{font-size:2rem;margin-bottom:12px;line-height:1.6;font-weight:700;font-family:"Noto Sans",sans-serif;text-align:center;color:var(--primary)}.header-t p{text-align:center;max-width:80%;margin-left:auto;margin-right:auto;color:var(--text-light);font-size:1rem}.main-content{padding:24px;display:flex;flex-direction:column;gap:24px}.upload-section{text-align:center;padding:32px;border:2px dashed var(--border);border-radius:12px;background-color:var(--bg-light);transition:var(--transition);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center}.upload-section:hover{border-color:var(--primary);background-color:rgba(79,70,229,0.03)}.upload-section.drag-over{border-color:var(--primary);background-color:rgba(79,70,229,0.1);transform:scale(1.01)}.upload-section.active{border-color:var(--primary);background-color:rgba(79,70,229,0.05)}.upload-icon{font-size:48px;color:var(--primary);margin-bottom:16px;display:block}.upload-text{font-size:1.25rem;color:var(--text);margin-bottom:8px;font-weight:500;text-align:center}.upload-hint{font-size:.95rem;color:var(--text-light);margin-bottom:20px;text-align:center}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border-radius:8px;font-weight:600;cursor:pointer;transition:var(--transition);border:0;outline:0;font-size:1rem;gap:8px}.btn-primary{background-color:var(--primary);color:white}.btn-primary:hover:not(:disabled){background-color:var(--primary-hover);transform:translateY(-2px);box-shadow:0 4px 12px rgba(79,70,229,0.3)}.btn-secondary{background-color:var(--secondary);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){background-color:var(--secondary-hover);transform:translateY(-2px);box-shadow:0 2px 8px rgba(0,0,0,0.1)}.btn-danger{background-color:var(--error);color:white}.btn-danger:hover:not(:disabled){background-color:#dc2626;transform:translateY(-2px)}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}#csv-upload{display:none}.preview-section{display:none;margin-top:24px}.preview-wrapper{border:1px solid var(--border);border-radius:12px;padding:16px;background-color:white;box-shadow:var(--card-shadow)}.preview-title{font-weight:600;margin-bottom:12px;display:flex;justify-content:space-between;align-items:center;color:var(--text)}.preview-title i{color:var(--primary);margin-right:8px}.preview-content{border:1px solid var(--border);background-color:#f9f9f9;overflow:auto;max-height:400px;border-radius:8px}.table-wrapper{padding:0;overflow-x:auto}#csv-preview{width:100%;border-collapse:collapse;font-size:14px}#csv-preview th,#csv-preview td{border:1px solid var(--border);padding:10px 12px;text-align:left}#csv-preview th{background-color:var(--primary);color:white;font-weight:600;position:sticky;top:0}#csv-preview tr:nth-child(even){background-color:var(--bg-light)}.controls-section{display:none;margin-top:24px;padding:20px;background:var(--bg-light);border-radius:12px;border:1px solid var(--border)}.controls-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}.control-group{margin-bottom:0}.control-label{display:block;margin-bottom:8px;font-weight:600;color:var(--text);font-size:.9rem}.control-input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:6px;font-family:inherit;font-size:.95rem;transition:var(--transition)}.control-input:focus{outline:0;border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,0.1)}.control-select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:6px;font-family:inherit;font-size:.95rem;background-color:white;cursor:pointer}.control-select:focus{outline:0;border-color:var(--primary)}.form-check{display:flex;align-items:center;gap:8px;margin-bottom:12px}.form-check-input{width:18px;height:18px;cursor:pointer}.action-buttons{display:flex;gap:16px;margin-top:24px;flex-wrap:wrap;justify-content:center}.loading{display:none;text-align:center;margin:20px 0;padding:30px;background:var(--bg-light);border-radius:12px}.loading-spinner{animation:spin 1s linear infinite;font-size:2rem;color:var(--primary)}.loading p{margin-top:10px;color:var(--text-light)}.error-message{display:none;padding:16px;background-color:#fee2e2;color:var(--error);border-radius:8px;margin-bottom:24px;text-align:center;font-weight:500;border-left:4px solid var(--error)}.toast{position:fixed;bottom:20px;right:20px;padding:14px 24px;border-radius:8px;background-color:var(--primary);color:white;font-weight:500;box-shadow:0 4px 15px rgba(0,0,0,0.2);transform:translateY(100px);opacity:0;transition:transform .3s ease,opacity .3s ease;z-index:1000}.toast.show{transform:translateY(0);opacity:1}.toast.error{background-color:var(--error)}.toast.success{background-color:var(--success)}.toast.info{background-color:var(--primary)}@keyframes spin{0{transform:rotate(0)}100%{transform:rotate(360deg)}}@media(max-width:1024px){.containert{max-width:95%;margin:50px auto}}@media(max-width:768px){.containert{margin:20px auto;border-radius:12px}.main-content{padding:16px}.upload-section{padding:24px 16px}.controls-grid{grid-template-columns:1fr}.action-buttons{flex-direction:column}.btn{width:100%;justify-content:center}.preview-wrapper{padding:12px}.preview-content{max-height:300px}.header-t p{max-width:95%}}@media(max-width:480px){.header-t h1{font-size:1.5rem}.upload-icon{font-size:36px}.upload-text{font-size:1rem}.toast{left:20px;right:20px;text-align:center}}.content-wrapper{max-width:1200px;margin:40px auto;padding:20px;font-family:'Noto Sans',sans-serif;line-height:1.7;color:#333}.content-wrapper h2{font-size:2.2em;color:#4f46e5;margin-top:40px;margin-bottom:15px;border-bottom:2px solid #e5e7eb;padding-bottom:10px}.content-wrapper h3{font-size:1.5em;color:#222;margin-top:30px;margin-bottom:10px}.content-wrapper p{margin-bottom:20px;font-size:1em}.content-wrapper ul{list-style:none;padding:0;margin-bottom:20px}.content-wrapper ul 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.step-number{font-size:1.5rem;font-weight:700;color:#fff;background-color:#0d47a1;width:45px;height:45px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:20px}.step-card h3{font-family:'Space Grotesk',sans-serif;font-size:1.3rem;margin-bottom:10px;color:#222;line-height:1.6}.step-card p{color:#666;line-height:1.6;font-size:1rem;margin:0}@media(prefers-color-scheme:dark){:root{--primary:#6366f1;--secondary:#374151;--text:#f9fafb;--text-light:#9ca3af;--border:#4b5563;--bg-light:#1f2937}body{background-color:#111827}.containert{background:#1f2937}.header-t{background:#1f2937;border-bottom-color:#4b5563}.upload-section{background-color:#1f2937}.preview-wrapper{background-color:#1f2937;border-color:#4b5563}.preview-content{background-color:#1f2937}.controls-section{background-color:#1f2937;border-color:#4b5563}.step-card{background-color:#1f2937;border-color:#374151}.step-card h3{color:#f9fafb}.step-card p{color:#9ca3af}.content-wrapper{color:#e5e7eb}.content-wrapper h3{color:#f9fafb}}@media print{.upload-section,.controls-section,.action-buttons,.how-to-section-wrapper,.content-wrapper{display:none !important}.preview-section{display:block !important}.containert{margin:0;padding:0;max-width:100%;box-shadow:none}}.skip-link{position:absolute;top:-40px;left:0;background:var(--primary);color:white;padding:8px;z-index:100;text-decoration:none}.skip-link:focus{top:0}.btn:focus-visible,.control-input:focus-visible,.control-select:focus-visible{outline:2px solid var(--primary);outline-offset:2px}