*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #2D2D2D;
  background-color: #FAFAF8;
}

.header {
  background-color: #FFFFFF;
  border-bottom: 1px solid #E8E8E4;
  padding: 16px 24px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header a {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: #7A9E7E;
  text-decoration: none;
}

.lang-toggle {
  display: flex;
  gap: 4px;
  background-color: #F0F0EC;
  border-radius: 6px;
  padding: 2px;
}

.lang-btn {
  padding: 6px 14px;
  border: none;
  border-radius: 4px;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  background: transparent;
  color: #6B6B6B;
  transition: all 0.2s ease;
}

.lang-btn.active {
  background-color: #7A9E7E;
  color: #FFFFFF;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

h1 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 32px;
  color: #1A1A1A;
  margin-bottom: 8px;
}

.last-updated {
  font-size: 14px;
  color: #8A8A8A;
  margin-bottom: 40px;
}

h2 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 600;
  font-size: 22px;
  color: #1A1A1A;
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #7A9E7E;
}

h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 600;
  font-size: 18px;
  color: #2D2D2D;
  margin-top: 24px;
  margin-bottom: 12px;
}

p {
  margin-bottom: 16px;
}

ul, ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

li {
  margin-bottom: 8px;
}

a {
  color: #7A9E7E;
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: #5C7E60;
}

.highlight-box {
  background-color: #F0F5F0;
  border-left: 4px solid #7A9E7E;
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 6px 6px 0;
}

.footer {
  text-align: center;
  padding: 32px 24px;
  border-top: 1px solid #E8E8E4;
  font-size: 14px;
  color: #8A8A8A;
}

.footer a {
  color: #7A9E7E;
}

.cross-link {
  margin-top: 48px;
  padding: 20px;
  background-color: #FFFFFF;
  border: 1px solid #E8E8E4;
  border-radius: 8px;
  text-align: center;
}

@media (max-width: 600px) {
  h1 { font-size: 26px; }
  h2 { font-size: 20px; }
  .container { padding: 32px 16px 60px; }
}