/* ==========================================================================
   LOGIN — vistas/css/login.css
   Rediseño 2026 (ver docs/FEATURE_LOGIN_REDESIGN.md). Construido
   exclusivamente sobre los tokens de vistas/css/fi-design-system.css —
   sin colores, radios ni sombras nuevos fuera de ese sistema.

   Mobile-first real: el bloque base (sin media query) es el layout de una
   sola columna; el panel de branding se activa como mejora progresiva en
   >=768px (breakpoint único, mismo estándar que el resto del ERP 2026).
   ========================================================================== */

.fi-login {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: #ffffff;
  color: var(--fi-slate-900);
}

/* ---------------------------------------------------------------------
   PANEL IZQUIERDO — branding (navy, sin foto de stock, sin blur).
   Composición única, centrada verticalmente, con textura sutil.
   --------------------------------------------------------------------- */
.fi-login__brand {
  display: none;
  position: relative;
  overflow: hidden;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--fi-slate-900) 0%, var(--fi-slate-800) 55%, var(--fi-primary-dark) 150%);
  color: #ffffff;
  padding: var(--fi-space-8) var(--fi-space-5);
  animation: fiLoginFadeUp 0.5s ease-out both;
}

/* Textura tecnológica extremadamente sutil: grid de puntos + resplandores
   suaves. Sin imágenes, sin fotografías. */
.fi-login__brand::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 18% 20%, rgba(255, 255, 255, 0.05), transparent 1px),
    radial-gradient(circle at 82% 78%, rgba(255, 255, 255, 0.04), transparent 1px);
  background-size: 24px 24px, 24px 24px;
  pointer-events: none;
}

.fi-login__brand::after {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  top: -180px;
  right: -180px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.22), transparent 70%);
  pointer-events: none;
}

.fi-login__brand-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 460px;
  margin: 0 auto;
}

/* ---------------------------------------------------------------------
   PANEL IZQUIERDO — kicker + titular + subtítulo (sin logo: el logo
   vive únicamente en la tarjeta del panel derecho).
   --------------------------------------------------------------------- */
.fi-login__kicker {
  margin: 0 0 var(--fi-space-4);
  font-size: var(--fi-font-xs);
  font-weight: var(--fi-weight-bold);
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--fi-primary-light);
}

.fi-login__headline {
  margin: 0 0 var(--fi-space-3);
  font-size: 30px;
  font-weight: var(--fi-weight-bold);
  line-height: var(--fi-line-tight);
  color: #ffffff;
  max-width: 440px;
}

.fi-login__headline-accent {
  color: var(--fi-primary-light);
}

.fi-login__brand-subtitle {
  margin: 0 0 var(--fi-space-6);
  font-size: var(--fi-font-md);
  color: rgba(255, 255, 255, 0.68);
  line-height: var(--fi-line-normal);
  max-width: 420px;
}

.fi-login__benefits {
  display: none;
  flex-direction: column;
  gap: var(--fi-space-4);
  list-style: none;
  margin: 0 0 var(--fi-space-6);
  padding: 0;
}

.fi-login__benefits li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.fi-login__benefit-head {
  display: flex;
  align-items: center;
  gap: var(--fi-space-2);
  font-size: var(--fi-font-md);
  font-weight: var(--fi-weight-bold);
  color: #ffffff;
}

.fi-login__benefit-head i {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--fi-primary-light);
}

.fi-login__benefit-desc {
  font-size: var(--fi-font-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: var(--fi-line-normal);
  padding-left: 22px;
}

.fi-login__support {
  display: inline-flex;
  align-items: center;
  gap: var(--fi-space-2);
  height: var(--fi-control-h);
  padding: 0 var(--fi-space-4);
  margin-bottom: var(--fi-space-5);
  border-radius: var(--fi-radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  font-size: var(--fi-font-sm);
  font-weight: var(--fi-weight-bold);
  text-decoration: none;
  transition: background-color var(--fi-transition), border-color var(--fi-transition);
}

.fi-login__support:hover,
.fi-login__support:focus {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
  color: #ffffff;
  text-decoration: none;
}

.fi-login__support i {
  font-size: var(--fi-icon);
}

.fi-login__security-tip {
  display: flex;
  align-items: flex-start;
  gap: var(--fi-space-3);
  max-width: 420px;
  margin-top: var(--fi-space-6);
  padding-top: var(--fi-space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.fi-login__security-tip i {
  margin-top: 2px;
  flex-shrink: 0;
  font-size: var(--fi-font-sm);
  color: rgba(255, 255, 255, 0.45);
}

.fi-login__security-tip div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.fi-login__security-tip strong {
  font-size: var(--fi-font-xs);
  font-weight: var(--fi-weight-bold);
  color: rgba(255, 255, 255, 0.75);
}

.fi-login__security-tip span {
  font-size: var(--fi-font-xs);
  color: rgba(255, 255, 255, 0.5);
  line-height: var(--fi-line-normal);
}

/* ---------------------------------------------------------------------
   PANEL DERECHO — formulario encerrado en una unidad visual propia.
   --------------------------------------------------------------------- */
.fi-login__panel {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--fi-slate-50);
  padding: var(--fi-space-6) var(--fi-space-5);
  animation: fiLoginFadeUp 0.5s ease-out 0.08s both;
}

.fi-login__card {
  width: 100%;
  max-width: 440px;
  background: #ffffff;
  border: 1px solid var(--fi-slate-200);
  border-radius: var(--fi-radius);
  box-shadow: var(--fi-shadow);
  padding: var(--fi-space-8) var(--fi-space-6);
  box-sizing: border-box;
}

.fi-login__card-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--fi-space-5);
}

.fi-login__logo-img {
  display: block;
  width: 170px;
  height: auto;
  object-fit: contain;
}

.fi-login__logo-fallback {
  display: block;
  font-size: 22px;
  font-weight: var(--fi-weight-bold);
  letter-spacing: 0.4px;
  color: var(--fi-slate-900);
}

.fi-login__card-head {
  margin-bottom: var(--fi-space-6);
  text-align: center;
}

.fi-login__card-head h2 {
  margin: 0 0 4px;
  font-size: var(--fi-font-2xl);
  font-weight: var(--fi-weight-bold);
  color: var(--fi-slate-900);
}

.fi-login__card-head p {
  margin: 0;
  font-size: var(--fi-font-sm);
  color: var(--fi-slate-500);
}

/* ---------------------------------------------------------------------
   ESTADO DE PROCESAMIENTO — reemplaza campos + botón mientras se
   autentica. Controlado por una única clase de estado en la tarjeta
   (.fi-login__card.is-loading), sin display:none sueltos por elemento.
   --------------------------------------------------------------------- */
.fi-login__processing {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: var(--fi-space-4);
  padding: var(--fi-space-6) 0 var(--fi-space-4);
}

.fi-login__processing-text {
  margin: 0;
  font-size: var(--fi-font-md);
  font-weight: var(--fi-weight-bold);
  color: var(--fi-slate-700);
}

.fi-login__card.is-loading .fi-login__card-head p,
.fi-login__card.is-loading .fi-login__form {
  display: none;
}

.fi-login__card.is-loading .fi-login__processing {
  display: flex;
}

.fi-login__field {
  margin-bottom: var(--fi-space-4);
}

.fi-login__field label {
  display: block;
  margin-bottom: 6px;
  font-size: var(--fi-font-xs);
  font-weight: var(--fi-weight-bold);
  color: var(--fi-slate-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.fi-login__input-wrap {
  position: relative;
}

.fi-login__input-wrap .fi-login__input-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--fi-slate-400);
  font-size: var(--fi-font-md);
  pointer-events: none;
  transition: color var(--fi-transition);
}

.fi-login__input-wrap input {
  width: 100%;
  height: 50px;
  box-sizing: border-box;
  padding: 0 16px 0 44px;
  border: 1px solid var(--fi-slate-200);
  border-radius: var(--fi-radius-sm);
  font-size: var(--fi-font-md);
  color: var(--fi-slate-900);
  background: #ffffff;
  transition: border-color var(--fi-transition), box-shadow var(--fi-transition);
}

.fi-login__input-wrap input::placeholder {
  color: var(--fi-slate-400);
}

.fi-login__input-wrap input:focus {
  outline: none;
  border-color: var(--fi-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.fi-login__input-wrap input:focus ~ .fi-login__input-icon {
  color: var(--fi-primary);
}

.fi-login__input-wrap--password input {
  padding-right: 44px;
}

.fi-login__toggle-pass {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--fi-slate-400);
  border-radius: var(--fi-radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--fi-transition), background-color var(--fi-transition);
}

.fi-login__toggle-pass:hover {
  color: var(--fi-slate-700);
  background: var(--fi-slate-100);
}

.fi-login__toggle-pass:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.fi-login__submit {
  position: relative;
  width: 100%;
  height: 50px;
  margin-top: var(--fi-space-2);
  border: none;
  border-radius: var(--fi-radius-sm);
  background: var(--fi-primary);
  color: #ffffff;
  font-size: var(--fi-font-md);
  font-weight: var(--fi-weight-bold);
  letter-spacing: 0.4px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--fi-space-2);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
  transition: background-color var(--fi-transition), box-shadow var(--fi-transition), transform var(--fi-transition);
}

.fi-login__submit:hover:not(:disabled) {
  background: var(--fi-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.32);
}

.fi-login__submit:active:not(:disabled) {
  transform: translateY(0);
}

.fi-login__submit:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3);
}

.fi-login__submit:disabled,
.fi-login__submit.is-loading {
  cursor: not-allowed;
  opacity: 0.85;
  transform: none;
}

.fi-login__spinner {
  display: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #ffffff;
  animation: fiLoginSpin 0.7s linear infinite;
}

/* Misma animación y forma del spinner del botón, reutilizada para el
   estado de procesamiento — solo cambia tamaño/color porque aquí va
   sobre fondo blanco, no sobre el botón azul. */
.fi-login__spinner--lg {
  display: inline-block;
  width: 28px;
  height: 28px;
  border-width: 3px;
  border-color: var(--fi-primary-soft);
  border-top-color: var(--fi-primary);
}

.fi-login__submit-loading-label {
  display: none;
}

.fi-login__submit.is-loading .fi-login__spinner {
  display: inline-block;
}

.fi-login__submit.is-loading .fi-login__submit-label,
.fi-login__submit.is-loading .fi-login__submit-icon {
  display: none;
}

.fi-login__submit.is-loading .fi-login__submit-loading-label {
  display: inline;
}

/* ---------------------------------------------------------------------
   RESULTADO DEL SERVIDOR — el HTML (.alert/.alert-danger/.alert-warning)
   lo sigue generando PHP (ControladorUsuarios) tal cual; aquí solo se
   re-skinea con los tokens de color, sin tocar cómo se genera.
   --------------------------------------------------------------------- */
.fi-login__result {
  margin-top: var(--fi-space-4);
}

.fi-login .alert {
  margin: 0;
  padding: var(--fi-space-3) var(--fi-space-4);
  border-radius: var(--fi-radius-sm);
  font-size: var(--fi-font-sm);
  line-height: var(--fi-line-normal);
  border: 1px solid transparent;
}

.fi-login .alert-danger {
  background: var(--fi-danger-soft);
  color: var(--fi-danger);
  border-color: rgba(220, 38, 38, 0.2);
}

.fi-login .alert-warning {
  background: var(--fi-warning-soft);
  color: var(--fi-warning);
  border-color: rgba(217, 119, 6, 0.2);
}

.fi-login__sunat {
  margin-top: var(--fi-space-6);
  padding-top: var(--fi-space-5);
  border-top: 1px solid var(--fi-slate-100);
  text-align: center;
}

.fi-login__sunat img {
  max-width: 120px;
  opacity: 0.7;
}

/* ---------------------------------------------------------------------
   Esquema de BD incompleto (edge case: tenant sin migrar) — pantalla
   independiente, sin layout de dos columnas.
   --------------------------------------------------------------------- */
.fi-login-standalone {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--fi-space-5);
  background: var(--fi-slate-50);
}

/* ---------------------------------------------------------------------
   Animaciones — refinadas del rediseño anterior, sin librería externa.
   --------------------------------------------------------------------- */
@keyframes fiLoginFadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fiLoginSpin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .fi-login__brand,
  .fi-login__panel {
    animation: none;
  }
}

/* ============================================================
   RESPONSIVE — breakpoint único 768px
   ============================================================ */
@media (min-width: 768px) {
  .fi-login {
    flex-direction: row;
  }

  .fi-login__brand {
    display: flex;
    flex: 1;
    padding: var(--fi-space-6);
  }

  .fi-login__logo-img {
    width: 190px;
  }

  .fi-login__headline {
    font-size: 34px;
  }

  .fi-login__benefits {
    display: flex;
  }

  .fi-login__security-tip {
    display: flex;
  }

  .fi-login__panel {
    flex: 1;
    padding: var(--fi-space-8);
  }
}

@media (min-width: 1200px) {
  .fi-login__brand {
    flex: 1.15;
    padding: var(--fi-space-8);
  }

  .fi-login__brand-inner {
    max-width: 500px;
  }

  .fi-login__logo-img {
    width: 200px;
  }

  .fi-login__headline {
    font-size: 38px;
  }
}