body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #0f1116;
  color: #f1f1f1;
  line-height: 1.6;
  padding: 0 1rem;
}

.lang-select {
  margin-top: 1rem;
  text-align: right;
}

.lang-select select {
  padding: 6px 10px;
  border-radius: 6px;
  background: #1c1e25;
  color: white;
  border: 1px solid #444;
}

.site-header {
  text-align: center;
  margin-top: 30px;
  margin-bottom: 30px;
}

.site-header h1 {
  font-size: 2.2rem;
  color: #00ffc3;
}

.effective-date {
  color: #ccc;
  font-size: 0.9rem;
}

.main-content {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  max-width: 1300px;
  margin: 0 auto;
  padding-bottom: 5rem;
}

.toc {
  position: sticky;
  top: 100px;
  background: rgba(17, 20, 26, 0.8);
  border: 1px solid #333;
  padding: 16px;
  border-radius: 8px;
  width: 250px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 0 12px rgba(0, 255, 196, 0.1);
}

.toc h2 {
  margin-top: 0;
  font-size: 1rem;
  color: #00ffc3;
}

.toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc ul li {
  margin: 8px 0;
}

.toc ul li a {
  color: #bbb;
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.2s ease;
}

.toc ul li a:hover {
  color: #00ffc3;
}

.terms-container {
  flex: 1;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid #222;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 0 30px rgba(0, 255, 196, 0.05);
}

.terms-container h2 {
  margin-top: 30px;
  font-size: 1.4rem;
  color: #00ffc3;
}

.terms-container p {
  margin-top: 12px;
  font-size: 1rem;
  color: #e3e3e3;
}

@media screen and (max-width: 900px) {
  .main-content {
    flex-direction: column;
  }

  .toc {
    position: relative;
    width: 100%;
    margin-bottom: 20px;
  }

  .lang-select {
    text-align: left;
  }
}