/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Georgia', 'Times New Roman', serif; font-size: 17px; color: #212121; background: #ffffff; line-height: 1.7; }

/* Header */
header { background: #ffffff; border-bottom: 2px solid #e0e0e0; padding: 24px; }
.header-inner { max-width: 760px; margin: 0 auto; }
.site-title { color: #212121; text-decoration: none; font-size: 1.8rem; font-weight: 700; font-family: 'Helvetica Neue', Arial, sans-serif; }
.tagline { color: #666; font-size: 0.95rem; margin-top: 4px; font-style: italic; }

/* Nav */
nav { background: #f8f8f8; border-bottom: 1px solid #e0e0e0; }
.nav-inner { max-width: 760px; margin: 0 auto; padding: 0 24px; display: flex; flex-wrap: wrap; }
.nav-link { display: block; color: #333; text-decoration: none; padding: 12px 14px; font-size: 0.9rem; font-family: 'Helvetica Neue', Arial, sans-serif; }
.nav-link:hover { color: #000; background: #e8e8e8; }

/* Main content */
.container { max-width: 760px; margin: 0 auto; padding: 40px 24px; }
h1 { font-size: 1.9rem; font-weight: 700; color: #212121; margin-bottom: 24px; font-family: 'Helvetica Neue', Arial, sans-serif; }
h2 { font-size: 1.35rem; font-weight: 700; color: #212121; margin-top: 36px; margin-bottom: 12px; font-family: 'Helvetica Neue', Arial, sans-serif; }
h3 { font-size: 1.1rem; font-weight: 600; color: #333; margin-top: 24px; margin-bottom: 8px; font-family: 'Helvetica Neue', Arial, sans-serif; }
p { margin-bottom: 18px; }
a { color: #1a5fa8; }
a:hover { color: #0d3d6e; }
ul, ol { margin: 0 0 18px 28px; }
li { margin-bottom: 6px; }

/* Tables */
table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: 0.95rem; }
th { background: #f0f0f0; color: #212121; padding: 10px 14px; text-align: left; border-bottom: 2px solid #ccc; }
td { padding: 9px 14px; border-bottom: 1px solid #eee; }

/* Code */
code { background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-family: 'Courier New', monospace; font-size: 0.88em; color: #333; }
pre { background: #f5f5f5; padding: 20px; border-radius: 4px; overflow-x: auto; margin: 16px 0; }
pre code { background: none; padding: 0; color: #212121; font-size: 0.88em; }

/* Home */
.home-content { font-size: 1.05rem; }

/* Page list */
.page-list { list-style: none; margin: 0; padding: 0; }
.page-list li { border-bottom: 1px solid #eee; }
.page-list li a { display: block; padding: 10px 0; color: #1a5fa8; text-decoration: none; }
.page-list li a:hover { text-decoration: underline; }

/* Footer */
footer { background: #f8f8f8; border-top: 1px solid #e0e0e0; color: #666; padding: 24px; text-align: center; margin-top: 60px; }
footer a { color: #1a5fa8; text-decoration: none; }
footer a:hover { text-decoration: underline; }
footer p { font-size: 0.9rem; font-family: 'Helvetica Neue', Arial, sans-serif; }

/* Responsive */
@media (max-width: 600px) {
  .nav-inner { flex-direction: column; }
}