/* ============================================================================
   ARCHIVO: css/login.css
   PROPOSITO: Estilos EXCLUSIVOS de la pantalla de login (index.php).
   ESTRUCTURA DEL HTML QUE ESTILIZA:

     .login-page
       .login-shell
         .login-brand        -> panel oscuro izquierdo (logo, texto, blobs SVG)
         .login-form-panel    -> panel claro derecho (formulario)
           .login-form-card
             .login-field (x2)
             .login-submit

   Si necesitas mover algo "a mano" busca el nombre de la clase aqui,
   cada bloque esta separado por un comentario con su nombre en MAYUSCULAS.
   ============================================================================ */

/* ---------------------------------------------------------------------------
   FONDO GENERAL DE LA PAGINA
--------------------------------------------------------------------------- */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--nm-light);
  padding: 32px;
}

/* ---------------------------------------------------------------------------
   CONTENEDOR PRINCIPAL (la "tarjeta" grande dividida en 2 columnas)
--------------------------------------------------------------------------- */
.login-shell {
  width: 100%;
  max-width: 1040px;
  min-height: 640px;
  background: var(--nm-white);
  border-radius: var(--nm-radius-lg);
  box-shadow: var(--nm-shadow-card);
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  overflow: hidden;
}

/* ---------------------------------------------------------------------------
   PANEL IZQUIERDO OSCURO (marca / storytelling del producto)
--------------------------------------------------------------------------- */
.login-brand {
  position: relative;
  background: linear-gradient(155deg, var(--nm-navy) 0%, var(--nm-teal) 130%);
  color: var(--nm-white);
  padding: 56px 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

/* Capa de rutas/geocercas en SVG (decorativa, ver dentro del <div class="login-brand-art">) */
.login-brand-art {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
}

.login-brand-art svg {
  width: 100%;
  height: 100%;
}

/* Puntos que laten (pines de geocerca) dentro del SVG */
.login-brand-art .pulse-dot {
  animation: nm-pulse 2.6s ease-in-out infinite;
  transform-origin: center;
}
.login-brand-art .pulse-dot:nth-child(2) { animation-delay: 0.6s; }
.login-brand-art .pulse-dot:nth-child(3) { animation-delay: 1.2s; }

@keyframes nm-pulse {
  0%, 100% { opacity: 0.35; transform: scale(0.9); }
  50%      { opacity: 1;    transform: scale(1.15); }
}

.login-brand-top,
.login-brand-bottom {
  position: relative;
  z-index: 1;
}

/* Logo dentro del panel oscuro: version BLANCA del logo, va directo
   sobre el fondo oscuro (sin tarjeta de por medio). */
.login-brand-logo {
  display: inline-flex;
  align-items: center;
}

.login-brand-logo img {
  height: 34px;
  width: auto;
}

.login-brand-title {
  font-family: var(--nm-font-display);
  font-weight: 700;
  font-size: 34px;
  line-height: 1.25;
  margin-top: 40px;
  max-width: 360px;
}

.login-brand-subtitle {
  font-family: var(--nm-font-body);
  font-size: 15px;
  line-height: 1.6;
  margin-top: 16px;
  max-width: 340px;
  color: var(--nm-light-blue);
}

/* Lista de capacidades del sistema (contexto del proyecto: ralenti + geocercas) */
.login-brand-features {
  list-style: none;
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-brand-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--nm-white);
}

.login-brand-features .feature-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(255,255,255,0.14);
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-brand-features svg {
  width: 16px;
  height: 16px;
}

.login-brand-tagline {
  font-family: var(--nm-font-display);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--nm-light-blue);
  border-top: 1px solid rgba(255,255,255,0.2);
  padding-top: 18px;
}

/* ---------------------------------------------------------------------------
   PANEL DERECHO CLARO (formulario de acceso)
--------------------------------------------------------------------------- */
.login-form-panel {
  padding: 56px 52px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.login-form-card {
  width: 100%;
  max-width: 340px;
  margin: 0 auto;
}

.login-form-eyebrow {
  font-family: var(--nm-font-body);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--nm-blue);
  margin-bottom: 10px;
}

.login-form-heading {
  font-family: var(--nm-font-display);
  font-weight: 700;
  font-size: 30px;
  color: var(--nm-navy);
}

.login-form-hint {
  font-size: 14px;
  color: #5a6b7a;
  margin-top: 8px;
  margin-bottom: 32px;
}

/* Campo de formulario individual (label flotante + input) */
.login-field {
  position: relative;
  margin-bottom: 20px;
}

.login-field input {
  width: 100%;
  padding: 16px 16px 8px 16px;
  height: 56px;
  font-family: var(--nm-font-body);
  font-size: 15px;
  color: var(--nm-black);
  background: var(--nm-light);
  border: 1.5px solid transparent;
  border-radius: var(--nm-radius-sm);
  transition: border-color var(--nm-transition), background var(--nm-transition);
}

.login-field input::placeholder {
  color: transparent;
}

.login-field input:focus {
  outline: none;
  border-color: var(--nm-blue);
  background: var(--nm-white);
}

.login-field label {
  position: absolute;
  left: 16px;
  top: 18px;
  font-size: 15px;
  color: #6d7d8c;
  pointer-events: none;
  transition: all var(--nm-transition);
}

/* Label "flota" hacia arriba cuando el input tiene foco o contenido */
.login-field input:focus + label,
.login-field input:not(:placeholder-shown) + label {
  top: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--nm-blue);
}

/* Boton para mostrar/ocultar contrasena */
.login-field .toggle-pass {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  color: #7c8b99;
  padding: 4px;
  display: flex;
  align-items: center;
}

.login-field .toggle-pass:hover {
  color: var(--nm-navy);
}

/* Fila: recordarme + olvidaste tu contrasena */
.login-form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 26px;
}

.login-remember {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #5a6b7a;
}

.login-remember input {
  accent-color: var(--nm-blue);
  width: 15px;
  height: 15px;
}

.login-form-row a {
  color: var(--nm-blue);
  font-weight: 700;
}

.login-form-row a:hover {
  text-decoration: underline;
}

/* Boton principal de acceso */
.login-submit {
  width: 100%;
  height: 54px;
  border-radius: var(--nm-radius-sm);
  background: linear-gradient(120deg, var(--nm-navy), var(--nm-blue));
  color: var(--nm-white);
  font-family: var(--nm-font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 14px 30px -10px var(--nm-blue-30);
  transition: transform var(--nm-transition), box-shadow var(--nm-transition);
}

.login-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px -8px var(--nm-blue-30);
}

.login-submit:active {
  transform: translateY(0);
}

.login-submit svg {
  width: 18px;
  height: 18px;
}

/* Mensaje de error (oculto por defecto; PASO 2 lo activara desde PHP) */
.login-alert {
  display: none;
  background: #fdeceb;
  border: 1px solid #f3b9b3;
  color: #a8342a;
  font-size: 13px;
  padding: 12px 14px;
  border-radius: var(--nm-radius-sm);
  margin-bottom: 18px;
}

.login-alert.is-visible {
  display: block;
}

.login-form-footer {
  margin-top: 34px;
  text-align: center;
  font-size: 12px;
  color: #93a2af;
}

/* ---------------------------------------------------------------------------
   RESPONSIVE
--------------------------------------------------------------------------- */
@media (max-width: 880px) {
  .login-shell {
    grid-template-columns: 1fr;
  }

  .login-brand {
    padding: 40px 36px;
  }

  .login-brand-features,
  .login-brand-tagline {
    display: none; /* En movil priorizamos el formulario, no el storytelling */
  }

  .login-form-panel {
    padding: 40px 32px;
  }
}

@media (max-width: 420px) {
  .login-page {
    padding: 0;
  }

  .login-shell {
    min-height: 100vh;
    border-radius: 0;
  }
}