body, html {
  width: 100%;
  height: 100%;
  margin: 0;
  font-family: Arial, sans-serif;
  background-image: url('../img/bg-index.png');
  background-size: cover;
  background-repeat: no-repeat; 
  background-position: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: white;
}

.header {
  width: 100%;
  background-color: #4d4d4d;
  padding: 20px;
  position: absolute;
  top: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;
}

.header .logo {
  display: flex;
  align-items: center;
}
.header .logo h2 {
  text-align: center;
  padding-left: 20px;
  font-size: 1.5rem;
}

.header .logo img {
  max-width: 80px;
  margin-right: 10px;
}

.header h2 {
  font-size: 1.8rem;
  color: white;
  margin: 0;
}

.container {
  text-align: center;
  margin-top: 100px;
  padding: 20px;
  box-sizing: border-box;
}

h1 {
  font-size: 2rem;
  margin: 10px 0;
  text-align: start;
}

p {
  font-size: 1rem;
  margin: 5px 0;
}

.login-btn {
  background-color: #d1d1d1;
  border: none;
  padding: 10px 20px;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 20px;
  border-radius: 5px;
}

.login-btn:hover {
  background-color: #b3b3b3;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header {
    flex-direction: column;
    align-items: center;
  }

  .header .logo h2 {
    padding-left: 0;
    font-size: 1.2rem;
  }

  .header h2 {
    font-size: 1.5rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  .container {
    margin-top: 80px;
    padding: 15px;
  }
}

@media (max-width: 480px) {
  .header .logo img {
    max-width: 60px;
  }

  .header h2 {
    font-size: 1.2rem;
  }

  h1 {
    font-size: 1.2rem;
  }

  .login-btn {
    padding: 8px 16px;
    font-size: 0.9rem;
  }
}