/* ========================================
   LAYOUT LOGIN UNION - ESTILOS ESPECÍFICOS
   Solo código único para pantalla de login
   ======================================== */

/* ========================================
   BODY ESPECÍFICO LOGIN
   ======================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(
    135deg,
    var(--union-primary) 0%,
    var(--union-light) 50%,
    var(--union-secondary) 100%
  );
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Efecto de partículas de fondo */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(
      circle at 25% 25%,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 75% 75%,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 50% 10%,
      rgba(255, 255, 255, 0.05) 0%,
      transparent 40%
    ),
    radial-gradient(
      circle at 80% 50%,
      rgba(255, 255, 255, 0.08) 0%,
      transparent 30%
    );
  animation: float 20s ease-in-out infinite;
  z-index: 1;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(5deg);
  }
}

/* ========================================
   CONTENEDOR PRINCIPAL LOGIN
   ======================================== */

.login-container {
  position: relative;
  z-index: 2;
  max-width: 450px;
  width: 100%;
  padding: 20px;
}

/* ========================================
   LOGO Y BRANDING
   ======================================== */

.login-logo {
  text-align: center;
  margin-bottom: 30px;
}

.login-logo img {
  max-width: 200px;
  height: auto;
  filter: drop-shadow(0 4px 15px rgba(0, 0, 0, 0.2));
}

/* ========================================
   TARJETA DE LOGIN
   ======================================== */

.login-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: 20px;
  padding: 40px 35px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.login-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--union-primary),
    var(--union-light),
    var(--union-secondary)
  );
  border-radius: 20px 20px 0 0;
}

/* ========================================
   TÍTULOS
   ======================================== */

.login-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--union-primary);
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

.login-subtitle {
  text-align: center;
  font-size: 16px;
  color: var(--union-text-muted);
  margin-bottom: 30px;
  font-weight: 400;
}

/* ========================================
   FORMULARIO
   ======================================== */

.form-group {
  margin-bottom: 25px;
  position: relative;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--union-text);
  font-size: 14px;
}

.form-control {
  width: 100%;
  padding: 15px 20px;
  border: 2px solid var(--union-border);
  border-radius: 12px;
  font-size: 16px;
  color: var(--union-text);
  background: rgba(255, 255, 255, 0.8);
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.form-control:focus {
  outline: none;
  border-color: var(--union-primary);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 0 0 3px rgba(32, 90, 148, 0.1);
  transform: translateY(-2px);
}

.form-control::placeholder {
  color: var(--union-text-muted);
  font-weight: 400;
}

/* ========================================
   ICONOS EN INPUTS
   ======================================== */

.form-group-icon {
  position: relative;
}

.form-group-icon .form-control {
  padding-left: 55px;
}

.form-group-icon::before {
  position: absolute;
  left: 20px;
  top: 15px;
  transform: translateY(-50%);
  color: var(--union-primary);
  background-repeat: no-repeat;
  opacity: 0.5;
  transition: all 0.3s ease;
  z-index: 1000;
}

.form-group-icon.username::before {
  content: "👤";
  font-size: 18px;
}

.form-group-icon.password::before {
  content: "🔒";
  font-size: 18px;
}

.form-group-icon:focus-within::before {
  opacity: 1;
  color: var(--union-primary);
}

/* ========================================
   BOTONES
   ======================================== */

.btn-login {
  width: 100%;
  padding: 15px 30px;
  background: linear-gradient(
    135deg,
    var(--union-primary) 0%,
    var(--union-secondary) 100%
  );
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(32, 90, 148, 0.3);
}

.btn-login::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s;
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(32, 90, 148, 0.4);
  background: linear-gradient(
    135deg,
    var(--union-secondary) 0%,
    var(--union-light) 100%
  );
}

.btn-login:hover::before {
  left: 100%;
}

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

/* ========================================
   CHECKBOX RECORDAR
   ======================================== */

.remember-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 20px 0;
}

.remember-checkbox {
  display: flex;
  align-items: center;
  cursor: pointer;
  font-size: 14px;
  color: var(--union-text);
}

.remember-checkbox input[type="checkbox"] {
  margin-right: 8px;
  transform: scale(1.2);
  accent-color: var(--union-primary);
}

.forgot-password {
  color: var(--union-primary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.forgot-password:hover {
  color: var(--union-dark);
  text-decoration: underline;
}

/* ========================================
   MENSAJES DE ERROR/ÉXITO
   ======================================== */

.alert {
  padding: 15px 20px;
  border-radius: 10px;
  margin-bottom: 20px;
  font-weight: 500;
  animation: slideIn 0.3s ease;
}

.alert-danger {
  background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
  color: #721c24;
  border: 1px solid #f5c6cb;
  box-shadow: 0 4px 15px rgba(114, 28, 36, 0.1);
}

.alert-success {
  background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
  color: #155724;
  border: 1px solid #c3e6cb;
  box-shadow: 0 4px 15px rgba(21, 87, 36, 0.1);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   FOOTER LOGIN
   ======================================== */

.login-footer {
  text-align: center;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid rgba(32, 90, 148, 0.1);
  color: var(--union-text-muted);
  font-size: 13px;
}

.login-footer strong {
  color: var(--union-primary);
  font-weight: 600;
}

/* ========================================
   RESPONSIVE LOGIN
   ======================================== */

@media (max-width: 480px) {
  .login-container {
    padding: 15px;
    max-width: 100%;
  }

  .login-card {
    padding: 30px 25px;
    border-radius: 15px;
  }

  .login-title {
    font-size: 24px;
  }

  .login-subtitle {
    font-size: 14px;
  }

  .form-control {
    padding: 12px 18px;
    font-size: 14px;
  }

  .form-group-icon .form-control {
    padding-left: 45px;
  }

  .form-group-icon::before {
    left: 15px;
    top: 35px;
    font-size: 16px;
  }

  .btn-login {
    padding: 12px 25px;
    font-size: 14px;
  }

  .login-logo img {
    max-width: 150px;
  }
}

/* ========================================
   LOADING STATES
   ======================================== */

.btn-login.loading {
  background: linear-gradient(135deg, #6c757d 0%, #5a6268 100%);
  cursor: not-allowed;
  pointer-events: none;
}

.btn-login.loading::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid #ffffff;
  border-radius: 50%;
  border-top-color: transparent;
  animation: spin 1s linear infinite;
}

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

/* ========================================
   ANIMACIONES DE ENTRADA
   ======================================== */

.login-card {
  animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   ESTILOS ADICIONALES PARA LA VISTA MODERNIZADA
   Movidos desde la vista para evitar conflictos VB.NET
   ======================================== */

.shake {
  animation: shake 0.6s ease-in-out;
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  10%,
  30%,
  50%,
  70%,
  90% {
    transform: translateX(-5px);
  }
  20%,
  40%,
  60%,
  80% {
    transform: translateX(5px);
  }
}

.is-invalid {
  border-color: #dc3545 !important;
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1) !important;
}

.is-valid {
  border-color: #28a745 !important;
  box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1) !important;
}

.has-error .form-group-icon::before {
  color: #dc3545 !important;
}

.has-success .form-group-icon::before {
  color: #28a745 !important;
}

/* Estados de enfoque dinámico */
.form-group.focused .form-control {
  border-color: var(--union-primary);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 0 0 3px rgba(32, 90, 148, 0.1);
}

.form-group.focused.has-error .form-control {
  border-color: #dc3545;
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-group.focused.has-success .form-control {
  border-color: #28a745;
  box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
}

/* Mejoras adicionales para la información de login */
.login-info {
  margin-top: 20px;
}

.login-info .alert-info {
  background: rgba(23, 162, 184, 0.1) !important;
  border: 1px solid rgba(23, 162, 184, 0.2) !important;
  color: #117a8b !important;
  font-size: 13px;
  padding: 12px 15px;
}

.login-info .alert-info i {
  margin-right: 8px;
  opacity: 0.8;
}

/* Estilos para validación en tiempo real */
.validation-summary-errors {
  display: none; /* Ocultar el summary default, usamos nuestro alert personalizado */
}

.text-danger.small {
  font-size: 12px;
  margin-top: 5px;
  display: block;
}

/* Espaciado adicional Bootstrap */
.mt-4 {
  margin-top: 1.5rem !important;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}