@import url("https://fonts.googleapis.com/css2?family=Google+Sans:wght@400;500;600;700&display=swap");
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: "Google Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #eef3fb;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: #fff;
  border: 1px solid #dbe4f3;
  border-radius: 14px;
  padding: 36px 34px 30px;
  box-shadow: 0 10px 30px rgba(21, 55, 117, .10);
  margin: 20px;
}
.login-card h1 { font-size: 1.05rem; font-weight: 700; color: #16305c; text-align: center; margin: 0 0 4px; }
.login-sub { font-size: .8rem; color: #5b6b8c; text-align: center; margin: 0 0 22px; }
label { display: block; font-size: .78rem; font-weight: 600; color: #4a5b7c; margin-bottom: 6px; }
.field { margin-bottom: 16px; }
input { width: 100%; padding: 10px 12px; border: 1px solid #c9d6ec; border-radius: 8px; font-size: .92rem; color: #16305c; background: #f8fafd; outline: none; }
input:focus { border-color: #2f5fd0; box-shadow: 0 0 0 3px rgba(47,95,208,.15); background: #fff; }
.btn-primary { width: 100%; padding: 11px; border: none; border-radius: 8px; background: #2f5fd0; color: #fff; font-size: .92rem; font-weight: 600; cursor: pointer; margin-top: 6px; }
.btn-primary:hover { background: #2650b3; }
.btn-primary:disabled { opacity: .6; }
.login-error { background: #fdecec; border: 1px solid #f3b9b9; color: #a3231f; font-size: .82rem; padding: 9px 12px; border-radius: 8px; margin-bottom: 16px; display: none; }
.login-error.visible { display: block; }

/* Entrada de página: fundido corto al cargar (evita el corte seco entre páginas). */
@keyframes sx-page-in { from { opacity: 0; } to { opacity: 1; } }
body { animation: sx-page-in .2s ease-out; }
@media (prefers-reduced-motion: reduce) { body { animation: none; } }