body {
    width: 100%;
  overflow-x: hidden;
    margin: 0;
    padding: 0;
    background-color: #FFFFFF; 
   
  }
/* Contenedor principal con el fondo de la empresa */
.login-page-wrapper {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100vh;
  display: flex; align-items: center; justify-content: center;
  
  background-size: cover;
  z-index: 1000;
}

/* Tarjeta de login alineada al estilo selección */
.login-card {
  background: white;
  padding: 40px;
  border-radius: 12px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.5s ease-out;
}

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

/* Header de la tarjeta */
.login-header { text-align: center; margin-bottom: 30px; }

.logo-samkwang {
  font-size: 2rem;
  font-weight: 900;
  color: #1a365d;
  letter-spacing: 3px;
  margin-bottom: 5px;
}

.subtitle { color: #64748b; font-size: 0.95rem; margin: 0; }

/* Estilos de Formulario */
.form-group { margin-bottom: 20px; text-align: left; }

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: #334155;
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  font-size: 1rem;
  transition: all 0.2s;
  background-color: #f8fafc;
}

.form-group input:focus {
  outline: none;
  border-color: #3b82f6;
  background-color: white;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.login-btn {
  width: 100%;
  padding: 14px;
  background: #1e293b;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: 10px;
}

.login-btn:hover { background: #0f172a; }

/* Mensajes de Error */
.error-msg {
  background: #fef2f2;
  color: #991b1b;
  padding: 12px;
  border-radius: 6px;
  border: 1px solid #fee2e2;
  margin-bottom: 20px;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Footer de links */
.form-footer {
  margin-top: 25px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: center;
}

.forgot-link {
  color: #3b82f6;
  text-decoration: none;
  font-size: 0.85rem;
}

.back-link {
  color: #64748b;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
}

.forgot-link:hover, .back-link:hover { text-decoration: underline; }

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  font-size: 16px;
  transition: all 0.2s;
  background-color: #f8fafc;
  box-sizing: border-box;
}

/* --- MEDIA QUERIES --- */

@media (max-width: 768px) {
  .login-card {
      max-width: 90%; 
      padding: 30px 20px; 
  }
  
  .logo-samkwang {
      font-size: 1.75rem; 
  }
}


@media (max-width: 480px) {
  .login-page-wrapper {
      align-items: flex-start; 
      padding-top: 10vh; 
      background-attachment: scroll; 
  }

  .login-card {
      max-width: 100%;
      border-radius: 0;
      box-shadow: none;
      height: auto;
      margin: 0 15px; 
      border-radius: 12px;
  }

  .login-btn {
      padding: 16px; 
  }

  .form-footer {
      flex-direction: row; 
      justify-content: space-between;
      gap: 5px;
  }
}


@media (max-height: 600px) {
  .login-page-wrapper {
      align-items: flex-start;
      overflow-y: auto; 
      padding: 20px 0;
  }
  
  .login-card {
      margin-bottom: 20px;
  }
}