:root{--c-bg: #f0f9ff;--c-sidebar: #e0f2fe;--c-accent: #0369a1;--c-border: #bae6fd;--c-alergia: #dc2626;--c-success: #059669;--c-text: #0c4a6e;--c-muted: #64748b}*{box-sizing:border-box;margin:0}html,body{height:100%}body{font-family:Inter,Segoe UI,system-ui,sans-serif;-webkit-font-smoothing:antialiased}.spinner{width:32px;height:32px;border:3px solid var(--c-border);border-top-color:var(--c-accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.btn-primary{background:var(--c-accent);color:#fff;border:none;padding:.5rem 1rem;border-radius:8px;font-size:.875rem;font-weight:500;cursor:pointer;transition:background .2s;font-family:inherit}.btn-primary:hover{background:#025e8a}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-cancel{background:none;border:1px solid var(--c-border);padding:.5rem 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