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

:root {
  --primary: #E67E22;
  --primary-dark: #D35400;
  --secondary: #2C3E50;
  --bg-light: #FFF9E6;
  --bg-cream: #FFF3CC;
  --white: #ffffff;
  --text: #2C3E50;
  --text-light: #666;
}

body {
  font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-cream) 100%);
  color: var(--text);
  min-height: 100vh;
  padding: 24px;
  line-height: 1.6;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  background: var(--white);
  padding: 48px 40px;
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

header {
  text-align: center;
  margin-bottom: 32px;
}

.logo {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
}

header h1 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
}

.subtitle {
  font-size: 18px;
  color: var(--text-light);
}

.nav-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  border-bottom: 2px solid #eee;
  padding-bottom: 0;
}

.tab {
  padding: 12px 24px;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s ease;
}

.tab:hover {
  color: var(--primary);
}

.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

main {
  min-height: 400px;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.updated {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 24px;
}

h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-top: 32px;
  margin-bottom: 12px;
}

h2:first-of-type {
  margin-top: 24px;
}

p {
  margin-bottom: 16px;
  color: var(--text);
}

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

li {
  margin-bottom: 8px;
}

li strong {
  color: var(--text);
}

.highlight {
  background: linear-gradient(135deg, rgba(230, 126, 34, 0.1), rgba(230, 126, 34, 0.05));
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
}

.highlight strong {
  color: var(--primary);
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid #eee;
  color: var(--text-light);
  font-size: 14px;
}

@media (max-width: 600px) {
  .container {
    padding: 32px 24px;
  }

  header h1 {
    font-size: 28px;
  }

  .nav-tabs {
    flex-direction: column;
    gap: 0;
  }

  .tab {
    padding: 12px 16px;
    border-bottom: none;
    border-left: 3px solid transparent;
  }

  .tab.active {
    border-bottom-color: transparent;
    border-left-color: var(--primary);
    background: rgba(230, 126, 34, 0.05);
  }
}