/* ==========================================================================
   Estilos de Autenticación (Login) - Material 3 Expressive
   ========================================================================== */

/* Contenedor principal centrado vertical y horizontalmente */
.auth-viewport {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  box-sizing: border-box;
  background: radial-gradient(circle at top, #f3edf7 0%, #eaddff 40%, #d0bcff 100%);
  background-attachment: fixed;
}

/* Tarjeta de autenticación centrada */
.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--md-sys-color-surface, #ffffff);
  border-radius: 28px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(103, 80, 164, 0.06);
  border: 1px solid rgba(121, 116, 126, 0.15);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.auth-card-body {
  padding: clamp(1.75rem, 5vw, 2.75rem);
}

/* Encabezado y marca */
.auth-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 2rem;
}

.auth-logo-badge {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  background: var(--md-sys-color-primary-container, #eaddff);
  color: var(--md-sys-color-on-primary-container, #21005d);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  box-shadow: 0 4px 10px rgba(103, 80, 164, 0.12);
}

.auth-logo-badge m3e-icon {
  font-size: 36px;
}

.auth-title {
  margin: 0;
  color: var(--md-sys-color-on-surface, #1d1b20);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.auth-subtitle {
  margin: 0.5rem 0 0 0;
  font-size: 0.9375rem;
  color: var(--md-sys-color-on-surface-variant, #49454f);
  line-height: 1.4;
}

/* Alertas y Mensajes */
.auth-alerts {
  margin-bottom: 1.5rem;
}

.auth-alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border-radius: 12px;
  font-size: 0.875rem;
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.auth-alert-error {
  background-color: var(--md-sys-color-error-container, #ffdad6);
  color: var(--md-sys-color-on-error-container, #410002);
  border: 1px solid rgba(186, 26, 26, 0.2);
}

.auth-alert-info {
  background-color: var(--md-sys-color-secondary-container, #e8def8);
  color: var(--md-sys-color-on-secondary-container, #1d192b);
  border: 1px solid rgba(98, 91, 113, 0.2);
}

.auth-alert-success {
  background-color: #d1e7dd;
  color: #0f5132;
  border: 1px solid #badbcc;
}

.auth-alert m3e-icon {
  font-size: 20px;
  flex-shrink: 0;
  margin-top: 1px;
}

/* Formulario */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Componentes M3E Form Field */
.auth-form-field {
  width: 100%;
  --m3e-form-field-width: 100%;
}

.auth-form-field [slot="prefix"] {
  margin-right: 8px;
  color: var(--md-sys-color-outline, #79747e);
}

/* Botón de acción principal */
.auth-submit-btn {
  width: 100%;
  margin-top: 0.75rem;
  --m3e-button-height: 48px;
}

.auth-submit-btn::part(button) {
  width: 100%;
  height: 48px;
  font-size: 1rem;
  font-weight: 500;
  border-radius: 24px;
}

/* Pie de tarjeta */
.auth-card-footer {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--md-sys-color-surface-variant, #e7e0ec);
  text-align: center;
  font-size: 0.8125rem;
  color: var(--md-sys-color-outline, #79747e);
}

/* Adaptabilidad responsiva */
@media (max-width: 480px) {
  .auth-viewport {
    padding: 1rem;
    align-items: flex-start;
    padding-top: 2rem;
  }

  .auth-card {
    border-radius: 20px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  }

  .auth-card-body {
    padding: 1.5rem 1.25rem;
  }

  .auth-logo-badge {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    margin-bottom: 1rem;
  }

  .auth-logo-badge m3e-icon {
    font-size: 28px;
  }
}