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var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 480px){.app-header{padding:.75rem 1rem}.header-username{display:none}.add-form{flex-direction:column}.add-btn{width:100%}.filter-bar{flex-direction:column;align-items:flex-start;gap:.5rem}.auth-card{padding:2rem 1.25rem}}