:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--error-color: #dc2626;--success-color: #16a34a;--border-color: #e5e7eb;--bg-color: #f9fafb;--text-color: #111827;--text-muted: #6b7280}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-color);color:var(--text-color);line-height:1.5}.container{max-width:800px;margin:0 auto;padding:2rem 1rem}.card{background:#fff;border-radius:8px;box-shadow:0 1px 3px #0000001a;padding:1.5rem;margin-bottom:1.5rem}.card-title{font-size:1.25rem;font-weight:600;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid var(--border-color)}.form-group{margin-bottom:1rem}.form-label{display:block;font-weight:500;margin-bottom:.5rem;font-size:.875rem}.form-input{width:100%;padding:.5rem .75rem;border:1px solid var(--border-color);border-radius:6px;font-size:1rem}.form-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.form-help{font-size:.75rem;color:var(--text-muted);margin-top:.25rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;font-size:.875rem;font-weight:500;border-radius:6px;border:none;cursor:pointer;transition:background-color .15s}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--primary-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-danger{background-color:var(--error-color);color:#fff}.btn-danger:hover:not(:disabled){background-color:#b91c1c}.btn-outline{background-color:#fff;border:1px solid var(--border-color);color:var(--text-color)}.btn-outline:hover{background-color:var(--bg-color)}.alert{padding:.75rem 1rem;border-radius:6px;margin-bottom:1rem;font-size:.875rem}.alert-error{background-color:#fef2f2;color:var(--error-color);border:1px solid #fecaca}.alert-success{background-color:#f0fdf4;color:var(--success-color);border:1px solid #bbf7d0}.file-input-wrapper{border:2px dashed var(--border-color);border-radius:8px;padding:2rem;text-align:center;cursor:pointer;transition:border-color .15s}.file-input-wrapper:hover{border-color:var(--primary-color)}.file-input-wrapper.dragover{border-color:var(--primary-color);background-color:#2563eb0d}.file-input{display:none}.domain-tags{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.5rem}.domain-tag{display:inline-flex;align-items:center;gap:.25rem;padding:.25rem .5rem;background-color:var(--bg-color);border-radius:4px;font-size:.875rem}.domain-tag button{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:0;font-size:1rem;line-height:1}.domain-tag button:hover{color:var(--error-color)}.result-box{background-color:var(--bg-color);border-radius:6px;padding:1rem;margin-top:1rem}.result-url{display:flex;gap:.5rem;align-items:center}.result-url input{flex:1;font-family:monospace}.file-list{display:flex;flex-direction:column;gap:.75rem}.file-item{display:flex;justify-content:space-between;align-items:center;padding:.75rem;background-color:var(--bg-color);border-radius:6px}.file-item.expired{opacity:.5}.file-info{flex:1;min-width:0}.file-name{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-meta{font-size:.75rem;color:var(--text-muted);margin-top:.25rem}.file-actions{display:flex;gap:.5rem;margin-left:1rem}.tabs{display:flex;gap:.5rem;margin-bottom:1.5rem}.tab{padding:.5rem 1rem;border:none;background:none;cursor:pointer;font-size:.875rem;font-weight:500;color:var(--text-muted);border-bottom:2px solid transparent;transition:color .15s,border-color .15s}.tab:hover{color:var(--text-color)}.tab.active{color:var(--primary-color);border-bottom-color:var(--primary-color)}.loading{display:flex;justify-content:center;padding:2rem}.spinner{width:24px;height:24px;border:2px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.checkbox-group{display:flex;align-items:center;gap:.5rem}.checkbox-group input[type=checkbox]{width:1rem;height:1rem}