:root { color-scheme: light; --ink: #20282c; --muted: #5b6870; --line: #dfe6e8; --accent: #087d8b; --soft: #eff9fa; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; background: #fff; color: var(--ink); font-family: Manrope, Arial, sans-serif; font-size: 16px; line-height: 1.7; letter-spacing: 0; }
a { color: var(--accent); text-underline-offset: 4px; overflow-wrap: anywhere; }
a:hover { color: #055d68; }
a:focus-visible { outline: 3px solid #42becd; outline-offset: 5px; border-radius: 2px; }
.skip-link { position: absolute; top: -80px; left: 16px; z-index: 10; background: #fff; padding: 10px 16px; }
.skip-link:focus { top: 8px; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner { max-width: 1200px; margin: auto; min-height: 88px; padding: 18px 28px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); font-size: 20px; font-weight: 800; text-decoration: none; flex-shrink: 0; }
.brand img { width: 40px; height: 40px; object-fit: contain; }
.header-nav { display: flex; align-items: center; flex-wrap: wrap; gap: 22px; font-size: 14px; font-weight: 700; }
.header-nav a { color: var(--muted); text-decoration: none; }
.header-nav a[aria-current="page"] { color: var(--accent); }
.header-nav .dashboard-link { color: var(--accent); }
.page-heading { background: #f5f8f9; border-bottom: 1px solid var(--line); }
.heading-inner { max-width: 1200px; margin: auto; padding: 40px 28px; }
.breadcrumb { font-size: 13px; color: var(--muted); margin: 0 0 12px; }
.breadcrumb a { color: var(--muted); }
h1 { font-size: 36px; line-height: 1.2; margin: 0 0 14px; font-weight: 800; }
.intro { max-width: 720px; color: var(--muted); margin: 0; }
.layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 64px; max-width: 1200px; margin: auto; padding: 40px 28px 64px; }
.toc { border-right: 1px solid var(--line); padding-right: 24px; font-size: 14px; }
.toc-title { color: var(--muted); font-weight: 700; margin: 0 0 12px; }
.toc nav { display: grid; gap: 10px; }
.toc a { text-decoration: none; }
article { min-width: 0; max-width: 760px; }
section + section { border-top: 1px solid var(--line); margin-top: 32px; padding-top: 24px; }
h2 { font-size: 23px; line-height: 1.35; margin: 0 0 14px; font-weight: 800; }
h3 { font-size: 17px; line-height: 1.5; margin: 22px 0 6px; }
p { margin: 0 0 16px; }
ul, ol { padding-left: 24px; margin: 12px 0 20px; }
li { margin: 8px 0; }
.notice { margin: 0 0 30px; border-left: 3px solid #b98b13; background: #fffbea; padding: 16px 20px; font-size: 14px; }
.notice strong { display: block; margin-bottom: 4px; }
.notice p { margin: 0; }
.contact-link { display: inline-flex; align-items: center; gap: 10px; color: #fff; background: var(--accent); border: 1px solid var(--accent); border-radius: 6px; padding: 11px 18px; text-decoration: none; font-weight: 700; max-width: 100%; }
.contact-link:hover { color: #fff; background: #055d68; }
.contact-link i { flex-shrink: 0; }
.email-address { display: block; margin: 12px 0 20px; font-size: 15px; }
.muted { color: var(--muted); font-size: 14px; }
.example { border-left: 3px solid #14b8c9; background: var(--soft); padding: 16px 20px; margin: 16px 0; }
.example p:last-child { margin-bottom: 0; }
details { border-bottom: 1px solid var(--line); padding: 16px 0; }
summary { cursor: pointer; font-weight: 700; line-height: 1.5; }
details p { margin: 12px 0 0; color: var(--muted); }
code { background: #f0f4f5; border-radius: 3px; padding: 1px 4px; font-size: 14px; overflow-wrap: anywhere; }
.site-footer { border-top: 1px solid var(--line); }
.footer-inner { max-width: 1200px; margin: auto; padding: 24px 28px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; color: var(--muted); font-size: 13px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
@media (max-width: 720px) {
  .header-inner { padding: 16px 20px; flex-wrap: wrap; gap: 16px; }
  .header-nav { width: 100%; gap: 20px; }
  .heading-inner { padding: 28px 20px; }
  h1 { font-size: 30px; }
  .layout { grid-template-columns: minmax(0, 1fr); gap: 28px; padding: 24px 20px 40px; }
  .toc { border-right: 0; border-bottom: 1px solid var(--line); padding: 0 0 20px; }
  .toc nav { display: flex; flex-wrap: wrap; gap: 10px 20px; }
  h2 { font-size: 22px; }
  .footer-inner { padding: 24px 20px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }