.login-pantalla {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background:
    radial-gradient(circle at 15% 20%, rgba(86, 192, 231, 0.16), transparent 55%),
    radial-gradient(circle at 85% 85%, rgba(32, 76, 229, 0.12), transparent 55%),
    var(--color-fondo-muted);
}

.login-tarjeta {
  width: 100%;
  max-width: 420px;
  background: var(--color-fondo);
  border: 1px solid var(--color-borde);
  border-radius: 16px;
  box-shadow: var(--sombra-md);
  padding: 2.5rem 2.25rem;
  text-align: center;
}

.login-marca {
  display: flex;
  justify-content: center;
  margin-bottom: 1.75rem;
}

.login-marca__logo {
  width: 100%;
  max-width: 280px;
  height: auto;
  display: block;
}

.login-subtitulo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  color: var(--color-texto-muted);
  background: var(--color-fondo-muted);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio);
  padding: 0.55rem 0.85rem;
  font-size: 0.78rem;
  line-height: 1.4;
  margin: 1.75rem 0 0;
}

.login-subtitulo::before {
  content: "ⓘ";
  color: var(--color-primario);
  font-size: 0.9rem;
  line-height: 1;
}

.login-boton-microsoft {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  width: 100%;
  background: var(--color-fondo);
  color: var(--color-texto);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio);
  padding: 0.7rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

.login-boton-microsoft:hover {
  border-color: var(--color-primario);
  box-shadow: 0 0 0 3px rgba(86, 192, 231, 0.18);
}

.login-boton-microsoft:active {
  transform: scale(0.99);
}

.login-boton-microsoft svg {
  flex: 0 0 auto;
}

.login-mensajes {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.login-mensaje {
  border-radius: 8px;
  padding: 0.55rem 0.75rem;
  font-size: 0.8rem;
  text-align: left;
}

.login-mensaje--error {
  background: rgba(214, 69, 69, 0.1);
  color: var(--color-peligro);
}

.login-mensaje--success,
.login-mensaje--info {
  background: rgba(86, 192, 231, 0.12);
  color: var(--color-texto);
}

/* Pantallas de estado: logout, 404, 500 — comparten el marco .login-pantalla/.login-tarjeta */
.estado-icono {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: var(--gradiente-acento);
  color: #fff;
  box-shadow: 0 4px 14px rgba(32, 76, 229, 0.3);
}
.estado-icono--peligro {
  background: linear-gradient(135deg, var(--color-peligro), #f08a6c);
  box-shadow: 0 4px 14px rgba(214, 69, 69, 0.3);
}
.estado-icono--codigo {
  width: auto;
  min-width: 56px;
  padding: 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.estado-titulo { margin: 0 0 0.5rem; font-size: 1.2rem; }
.estado-texto { color: var(--color-texto-muted); font-size: 0.88rem; line-height: 1.5; margin: 0 0 1.75rem; }

.estado-acciones { display: flex; flex-direction: column; gap: 0.6rem; }
.estado-acciones button,
.estado-acciones .boton-secundario {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radio);
  padding: 0.65rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.estado-acciones .boton-secundario {
  background: var(--color-fondo);
  color: var(--color-texto);
  border: 1px solid var(--color-borde);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.estado-acciones .boton-secundario:hover {
  border-color: var(--color-primario);
  box-shadow: 0 0 0 3px rgba(86, 192, 231, 0.18);
}