*{box-sizing:border-box}body,html{margin:0;padding:0;height:100%;font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif}:root{--color-primario:linear-gradient(135deg, #00c897, #007965);--color-primario-hover:linear-gradient(135deg, #00e0ac, #009976);--color-texto:#1f2937;--color-borde:#d1d5db;--color-fondo:#f9fafb;--radio:12px;--sombra:0 4px 14px rgba(0, 0, 0, 0.08)}body{background:var(--color-fondo)}h2{text-align:center;font-size:1.6rem;font-weight:700;color:var(--color-texto);margin-bottom:1rem;margin-top:2rem;animation:fadeIn .4s ease-in-out}form{max-width:600px;background:#fff;padding:2rem;margin:0 auto 2rem auto;border-radius:var(--radio);box-shadow:var(--sombra);display:flex;flex-direction:column;gap:1rem;animation:fadeIn .4s ease-in-out}label{font-weight:600;font-size:1.3rem;color:var(--color-texto)}input{padding:.75rem;font-size:1rem;border:1px solid var(--color-borde);border-radius:var(--radio);transition:border-color .2s,box-shadow .2s}input:focus{outline:0;border-color:var(--color-primario);box-shadow:0 0 0 3px rgba(79,70,229,.15)}button{background:var(--color-primario);color:#fff;font-weight:600;font-size:1rem;padding:.75rem;border:none;border-radius:var(--radio);cursor:pointer;transition:transform .3s ease-out}button:hover{transform:scale(1.01);background:var(--color-primario-hover)}p{text-align:center;font-size:.95rem;color:var(--color-texto);margin-top:.5rem;animation:fadeIn .4s ease-in-out}@keyframes fadeIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:480px){form{padding:1.5rem;max-width:90%}}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(31,41,55,.45);display:flex;justify-content:center;align-items:center;visibility:hidden;opacity:0;transition:visibility 0s linear .25s,opacity .25s ease;z-index:1000}.modal.show{visibility:visible;opacity:1;transition-delay:0s}.modal-dialog{background:#fff;border-radius:var(--radio);box-shadow:var(--sombra);max-width:400px;width:90%;overflow:hidden;animation:slideDown .35s ease}@keyframes slideDown{from{transform:translateY(-20px);opacity:0}to{transform:translateY(0);opacity:1}}.volver-login{margin-top:20px;text-align:center}.btn-volver{display:inline-block;padding:8px 16px;background-color:#eee;color:#333;border-radius:4px;text-decoration:none;font-weight:700;transition:background-color .3s ease}.btn-volver:hover{background-color:#ddd}.modal-dialog{background:#fff;border-radius:var(--radio);box-shadow:var(--sombra);max-width:500px;width:90%;overflow:hidden;animation:slideDown .35s ease}.modal-header{background:var(--color-primario);background-size:200% auto;color:#fff;padding:.75rem 1rem;display:flex;justify-content:space-between;align-items:center}.modal-header h3{margin:0;font-size:1.1rem;font-weight:600}.close-btn{background:0 0;border:none;color:#fff;font-size:1.5rem;cursor:pointer;line-height:1}.modal-body{padding:1.5rem;font-size:1rem;color:var(--color-texto);text-align:center}.modal-footer{padding:1rem;display:flex;flex-direction:column;gap:.75rem;background:#f3f4f6}.modal-footer button{width:100%;padding:.75rem;font-size:1rem;font-weight:600;border-radius:var(--radio);border:none;cursor:pointer;transition:transform .25s ease-out,background .25s ease}.modal-footer .btn-confirm{background:var(--color-primario);color:#fff}.modal-footer .btn-confirm:hover{background:var(--color-primario-hover);transform:scale(1.01)}.modal-footer .btn-cancel{background:#e5e7eb;color:var(--color-texto)}.modal-footer .btn-cancel:hover{background:#d1d5db;transform:scale(1.01)}