* { box-sizing: border-box; }
body { margin: 0; background: #ccc; color: #000; font-family: "Times New Roman", Times, serif; font-size: 16px; }
a { color: #003366; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 3px solid #000; outline-offset: 2px; }
.skip { position: absolute; left: 8px; top: -100px; background: #ffff99; padding: 8px; z-index: 2; }
.skip:focus { top: 8px; }
.layout { display: grid; grid-template-columns: 143px minmax(0, 1fr); min-height: 100vh; }
nav { padding: 8px; }
.menu { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.menu li { background: #999900; }
.menu a { display: block; padding: 2px 3px; text-decoration: none; }
.menu a:hover, .menu a[aria-current="page"] { text-decoration: underline; }
.menu .principal { background: #ffff99; text-align: center; }
.menu .heading { background: #000066; color: #fff; text-align: center; padding: 2px; font-weight: normal; }
.menu .brand { background: #0000cc; color: #fff; font-style: italic; padding: 2px 3px; }
.menu .emulator { background: #cc9900; }
.menu-toggle { display: none; }
main { min-width: 0; padding: 8px; overflow-wrap: break-word; }
.banners img { display: block; max-width: 100%; height: auto; margin: 0 auto 16px; }
.welcome-title { text-align: center; color: #003366; font-size: 24px; margin: 24px 0; }
.welcome-title img { vertical-align: middle; max-width: 40px; height: auto; }
.intro { width: 422px; max-width: 100%; margin: 0 auto; border: 1px solid #000; padding: 8px; }
.intro p { margin: 16px 0; }
.article img { max-width: 100%; height: auto; }
.article h1 { font-size: 2em; }
footer { margin-top: 32px; padding: 12px 4px; border-top: 1px solid #999; text-align: center; font-size: 14px; color: #003366; }
.table-scroll { max-width: 100%; overflow-x: auto; }
.table-scroll:focus-visible { outline: 2px solid #003366; }
.article table { margin-inline: auto; }
[hidden] { display: none !important; }
@media (max-width: 640px) {
.layout { grid-template-columns: minmax(0, 1fr); }
nav { padding-bottom: 0; }
.menu-toggle { display: block; width: 100%; min-height: 44px; border: 1px solid #000066; border-radius: 0; background: #000066; color: #fff; font: inherit; cursor: pointer; }
.menu { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 2px; }
.menu .heading, .menu .brand, .menu .principal { grid-column: 1 / -1; }
.menu a { min-height: 44px; display: flex; align-items: center; padding: 6px; }
.menu .principal a { justify-content: center; }
main { padding: 16px 8px; }
.welcome-title { font-size: 21px; }
.article h1 { font-size: 26px; }
}
@media (prefers-reduced-motion: reduce) { .welcome-title img { display: none; } }