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var(--border-color);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width:768px){.container{padding:12px}.header{flex-direction:column;align-items:stretch}.header h1{font-size:16px}.form-row{grid-template-columns:1fr}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.header-controls{flex-wrap:wrap}.btn{padding:7px 14px;font-size:13px}}@media print{.btn-secondary,.header-controls,.theme-btn{display:none}body{background:#fff;color:#000}.card,.panel{box-shadow:none;border:1px solid #d1d5db}}