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20px}.card{background:var(--bg-card);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);padding:24px;margin-bottom:20px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border:none;border-radius:var(--border-radius);font-size:16px;font-weight:600;cursor:pointer;transition:all var(--transition-fast);gap:8px}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}.btn-secondary{background:var(--secondary);color:#fff}.btn-secondary:hover{background:var(--secondary-dark)}.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}.btn-outline:hover{background:var(--primary);color:#fff}.btn-danger{background:var(--danger);color:#fff}.btn-large{padding:16px 32px;font-size:18px}.btn-block{width:100%}.btn:disabled{opacity:.5;cursor:not-allowed}.input-group{margin-bottom:20px}.input-group label{display:block;margin-bottom:8px;font-weight:600;color:var(--text-primary)}.input{width:100%;padding:12px 16px;border:2px solid var(--border-color);border-radius:var(--border-radius);font-size:16px;transition:border-color var(--transition-fast)}.input:focus{outline:none;border-color:var(--primary)}.textarea{min-height:100px;resize:vertical}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;margin-bottom:16px}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}h4{font-size:1.25rem}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.text-primary{color:var(--primary)}.text-success{color:var(--secondary)}.text-danger{color:var(--danger)}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mt-4{margin-top:32px}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}.mb-4{margin-bottom:32px}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:8px}.gap-2{gap:16px}.gap-3{gap:24px}.page-header{position:relative;text-align:center;padding:40px 20px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;margin-bottom:32px}.page-header h1{margin-bottom:8px}.page-header p{opacity:.9;font-size:1.1rem}.back-button{position:absolute;left:20px;top:50%;transform:translateY(-50%);color:#fff;text-decoration:none;font-weight:600;font-size:1rem;padding:8px 16px;border-radius:var(--border-radius);background:#ffffff26;transition:all var(--transition-fast)}.back-button:hover{background:#ffffff40}.badge{display:inline-block;padding:4px 12px;border-radius:20px;font-size:14px;font-weight:600}.badge-primary{background:var(--primary-light);color:var(--primary-dark)}.badge-success{background:#d1fae5;color:#065f46}.badge-warning{background:#fef3c7;color:#92400e}.badge-danger{background:#fee2e2;color:#991b1b}.spinner{width:40px;height:40px;border:4px solid var(--border-color);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.nickname-tag{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:linear-gradient(135deg,#fef3c7,#fde68a);border-radius:20px;font-weight:600;color:#92400e;font-size:1.1rem}.nickname-tag:before{content:"🐾"}.qr-container{display:flex;flex-direction:column;align-items:center;padding:32px;background:#fff;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-lg)}.qr-container img{max-width:300px;border-radius:8px}.qr-code{padding:16px;background:#fff;border-radius:12px}@media (max-width: 768px){h1{font-size:1.75rem}h2{font-size:1.5rem}.card{padding:16px}.btn-large{padding:14px 24px;font-size:16px}}