/* Fondo general */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #1abc9c, #16a085);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Tarjeta del login */
.login-card {
  background: #fff;
  padding: 40px 30px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  width: 100%;
  max-width: 400px;
  text-align: center;
  animation: fadeIn 0.8s ease;
}

/* Animación suave */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Título */
.login-card h2 {
  margin-bottom: 20px;
  color: #2c3e50;
  font-size: 24px;
}

/* Inputs */
.login-card input[type="email"],
.login-card input[type="password"] {
  width: 100%;
  padding: 12px 15px;
  margin: 10px 0;
  border: 1px solid #ddd;
  border-radius: 10px;
  outline: none;
  font-size: 14px;
  transition: all 0.3s;
}
.login-card input:focus {
  border-color: #1abc9c;
  box-shadow: 0 0 5px rgba(26,188,156,0.5);
}

/* Botón */
.login-card button {
  width: 100%;
  padding: 12px;
  background: #1abc9c;
  border: none;
  border-radius: 10px;
  color: white;
  font-size: 16px;
  cursor: pointer;
  margin-top: 15px;
  transition: background 0.3s ease;
}
.login-card button:hover {
  background: #16a085;
}

/* Mensajes de error */
.login-card .error {
  color: #e74c3c;
  font-weight: bold;
  margin-bottom: 15px;
}