:root{--teal:#008080;--gray:#c0c0c0;--navy:#000080;--white:#fff;--black:#000;--shadow:#808080}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;padding:14px;background:var(--teal);color:#111;font:14px Tahoma,"MS Sans Serif",Arial,sans-serif}
a{color:#000080}a:hover{text-decoration:none}a:focus-visible,button:focus-visible{outline:3px solid #ffdf48;outline-offset:3px}
.site{max-width:960px;margin:0 auto}.brand-header{color:#fff;margin:0 0 12px}.brand-top{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.brand-name{display:inline-flex;align-items:center;gap:8px;color:#fff;text-decoration:none;font-weight:bold;font-size:15px}.brand-icon{width:26px;height:26px;display:grid;place-items:center;background:var(--gray);border:2px outset #eee;color:#111;font-size:16px}.site-nav{display:flex;gap:5px;flex-wrap:wrap}.site-nav a,.win-button{display:inline-block;padding:6px 10px;background:var(--gray);color:#000;text-decoration:none;border:2px outset #eee;font:13px Tahoma,Arial,sans-serif;cursor:pointer}.site-nav a[aria-current=page]{border-style:inset;font-weight:bold}.brand-header h1{font:bold 23px Tahoma,Arial,sans-serif;margin:14px 0 5px}.brand-header p{margin:0 0 4px;color:#f6f6f6;line-height:1.5;max-width:760px}
.window{background:var(--gray);margin:0 0 18px;border-top:2px solid #fff;border-left:2px solid #fff;border-right:2px solid #000;border-bottom:2px solid #000;box-shadow:2px 2px 0 #555}.title-bar{background:var(--navy);padding:5px 8px;display:flex;align-items:center;justify-content:space-between;color:white;font:bold 13px Tahoma,Arial,sans-serif}.window-actions{font:13px Tahoma,Arial,sans-serif;color:#111;background:var(--gray);padding:0 5px;border:1px outset #fff}.menu-bar{padding:5px 9px;border-bottom:1px solid #888;min-height:29px}.menu-bar a{color:#000;text-decoration:none;padding:3px 6px}.menu-bar a:hover{background:var(--navy);color:#fff}.window-body{padding:6px}.inset{border-top:2px solid #777;border-left:2px solid #777;border-right:2px solid #fff;border-bottom:2px solid #fff}.game-frame{background:#c0c0c0;aspect-ratio:4/3}.game-frame iframe{width:100%;height:100%;border:0;display:block}.mobile-message{display:none;background:#111;color:#eee;text-align:center;padding:30px 12px;line-height:1.55}.mobile-message a{color:#fff}.paper{background:#fff;padding:22px 27px;font:17px/1.65 "Times New Roman",Times,serif}.paper h2{font:bold 19px Arial,sans-serif;background:#c0c0c0;border:1px solid #555;padding:5px 8px;margin:28px 0 12px}.paper h2:first-child{margin-top:0}.paper h3{font:bold 16px Arial,sans-serif;margin:19px 0 7px}.paper p{margin:0 0 14px}.paper ul,.paper ol{padding-left:24px}.paper li{margin-bottom:6px}.paper figure{margin:20px 0}.paper figure img{max-width:100%;height:auto;border:2px solid #222;display:block}.paper figcaption{font:13px/1.5 Tahoma,Arial,sans-serif;color:#555;margin-top:7px}.note{background:#f5f5f5;border-left:3px solid #000080;padding:10px 13px;margin:16px 0}.short-links{margin-top:20px}.short-links a{margin-right:16px}.related{margin-top:24px;border-top:1px solid #bbb;padding-top:12px}.related h2{margin-top:0}.faq h3{margin-top:15px}.examples{font:16px/1.6 Consolas,"Courier New",monospace;background:#eee;border:1px solid #888;padding:12px;white-space:pre;overflow-x:auto}.site-footer{font:12px/1.6 Tahoma,Arial,sans-serif;color:#fff;padding:6px 0 25px}.site-footer a{color:#fff}.site-footer p{margin:4px 0}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
@media(max-width:700px){body{padding:8px}.brand-header h1{font-size:20px}.brand-top{align-items:flex-start}.paper{padding:16px;font-size:16px}.game-frame{display:none}.mobile-message{display:block}.window-actions{display:none}.site-nav a{padding:6px 8px}}