body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #000;
  color: #fff;
}

.site-header {
  position: sticky;
  top: 0;
  background-color: #000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
  height: 100px;
  z-index: 999;
}

.site-header .logo img {
  width: 106px;
  height: 50px;
}

.auth-buttons {
  display: flex;
  gap: 10px;
}

.auth-buttons .btn {
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  font-weight: bold;
  cursor: pointer;
}

.btn.login {
  background-color: #f1c40f;
  color: #000;
}

.btn.register {
  background-color: #1629a8;
  color: #fff;
}

.banner-slider {
  width: 100%;
  max-width: 1000px;
  height: 300px;
  margin: 0 auto;
  overflow: hidden;
}

.slider {
  width: 100%;
  height: 100%;
}

.slider img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.slider img.active {
  display: block;
}

.content {
  padding: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.summary p {
  font-weight: bold;
  font-size: 1.1em;
}

article h1 {
  font-size: 24px;
  margin-top: 20px;
}

.site-footer {
  background-color: #000;
  text-align: center;
  padding: 20px;
  border-top: 1px solid #333;
}

.site-footer img {
  width: 100px;
  margin-bottom: 10px;
}

/* ===== Responsive ===== */

@media (max-width: 768px) {
  .site-header {
    flex-direction: column;
    height: auto;
    padding: 10px;
  }

  .banner-slider {
    width: 100%;
    height: 200px;
  }

  .auth-buttons {
    margin-top: 10px;
    width: 100%;
    justify-content: center;
  }

  .auth-buttons .btn {
    flex: 1;
    padding: 10px;
    font-size: 16px;
  }

  .content {
    padding: 15px;
  }

  article h1 {
    font-size: 20px;
  }

  .faq-question {
    font-size: 16px;
  }

  .faq-answer p {
    font-size: 14px;
  }
}