:root{--teal:#008080;--grey:#c0c0c0;--navy:#000080;--blue:#1084d0;--yellow:#ffff55}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:12px}
body{margin:0;background:var(--teal);color:#000;font:15px/1.45 Tahoma,"MS Sans Serif",Verdana,Geneva,sans-serif;padding:16px 16px 64px}
a{color:#000080}
code{font:13px "Courier New",monospace;background:#fff;padding:1px 6px;box-shadow:inset 1px 1px #808080,inset -1px -1px #dfdfdf}
.w{max-width:880px;margin:0 auto}

/* bevels */
.win,.btn,.task,.menu{background:var(--grey);box-shadow:inset -1px -1px #0a0a0a,inset 1px 1px #fff,inset -2px -2px #808080,inset 2px 2px #dfdfdf}
.sunk{background:#fff;box-shadow:inset 1px 1px #808080,inset -1px -1px #fff,inset 2px 2px #0a0a0a,inset -2px -2px #dfdfdf}

/* windows */
.win{padding:3px;margin:0 auto 22px;max-width:880px;filter:drop-shadow(6px 6px 0 rgba(0,0,0,.45))}
.title{display:flex;align-items:center;gap:8px;background:linear-gradient(90deg,var(--navy),var(--blue));color:#fff;padding:3px 4px 3px 8px;font-weight:700;font-size:14px}
.title span{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.title i{display:inline-block;width:18px;height:16px;background:var(--grey);color:#000;font:700 11px/14px Tahoma,sans-serif;text-align:center;font-style:normal;box-shadow:inset -1px -1px #0a0a0a,inset 1px 1px #fff,inset -2px -2px #808080,inset 2px 2px #dfdfdf}
.body{padding:16px 18px 18px}
.body h2,.body h1{margin:0}
h1{font:800 clamp(1.9rem,6vw,3.2rem)/1.05 Tahoma,Verdana,sans-serif;letter-spacing:-.02em}
h1 em{font-style:normal;color:var(--navy)}
h2{font-size:1.15rem}
.lead{font-size:1.05rem;margin:10px 0 16px;max-width:56ch}

/* buttons */
.btn{display:inline-block;padding:7px 18px;color:#000;text-decoration:none;font-weight:700;margin:0 8px 8px 0;border:0;cursor:pointer;font-family:inherit;font-size:14px;min-height:36px}
.btn:active{box-shadow:inset 1px 1px #0a0a0a,inset -1px -1px #fff,inset 2px 2px #808080,inset -2px -2px #dfdfdf;padding:8px 17px 6px 19px}
.btn:focus-visible,.task:focus-visible,a:focus-visible{outline:1px dotted #000;outline-offset:-5px}
.btn.alt{font-weight:400}

/* feature grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.card{padding:10px 12px;background:var(--grey);box-shadow:inset -1px -1px #fff,inset 1px 1px #808080,inset -2px -2px #dfdfdf,inset 2px 2px #0a0a0a;background:#fff}
.card h3{margin:0 0 4px;font-size:.98rem;color:var(--navy)}
.card p{margin:0;font-size:.9rem}
.card::before{content:"";display:block;width:16px;height:16px;margin-bottom:8px;background:var(--teal);box-shadow:inset 2px 2px #5fb3b3,inset -2px -2px #004c4c}
.steps,.rules{margin:0;padding-left:22px}
.steps li,.rules li{margin:6px 0}
table{width:100%;border-collapse:collapse}
td{padding:6px 10px;border-bottom:1px solid #c0c0c0;vertical-align:top}
td:first-child{white-space:nowrap}
.sunk{padding:10px 14px}
.note{margin:14px 0 0;font-size:.85rem;color:#333}

/* taskbar */
.bar{position:fixed;left:0;right:0;bottom:0;z-index:10;display:flex;gap:6px;align-items:center;background:var(--grey);padding:4px;box-shadow:inset 0 2px #fff,inset 0 1px #dfdfdf}
.task{border:0;padding:4px 10px;min-height:32px;font:700 13px Tahoma,sans-serif;color:#000;text-decoration:none;display:inline-flex;align-items:center;gap:6px;cursor:pointer;white-space:nowrap}
.start::before{content:"";width:14px;height:14px;background:conic-gradient(#e63 0 25%,#3a3 0 50%,#36f 0 75%,#fc0 0)}
.tasks{display:flex;gap:6px;overflow-x:auto;flex:1;scrollbar-width:none}
.tasks::-webkit-scrollbar{display:none}
.tasks .task{font-weight:400}
.clock{padding:6px 10px;font-size:13px;box-shadow:inset 1px 1px #808080,inset -1px -1px #fff;min-width:74px;text-align:center}
.menu{position:fixed;left:4px;bottom:44px;z-index:11;min-width:210px;padding:3px;display:none;filter:drop-shadow(4px 4px 0 rgba(0,0,0,.4))}
.menu.open{display:block}
.menu a{display:block;padding:9px 14px;color:#000;text-decoration:none;font-size:14px}
.menu a:hover,.menu a:focus{background:var(--navy);color:#fff;outline:0}

footer{max-width:880px;margin:0 auto;color:#fff;font-size:.8rem;text-shadow:1px 1px 0 #000}
footer a{color:var(--yellow)}

@media(max-width:560px){
 body{padding:10px 10px 62px}
 .body{padding:12px}
 .clock{display:none}
 td:first-child{white-space:normal}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* v2 additions */
.btn.big{font-size:15px;padding:9px 22px}
.two{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.two h3{margin:0 0 6px;font-size:1rem;color:var(--navy)}.two p{margin:0}
.icons{display:grid;grid-template-columns:repeat(auto-fill,minmax(78px,1fr));gap:6px;margin-top:18px;padding:10px;background:var(--teal);box-shadow:inset 1px 1px #808080,inset -1px -1px #fff}
.icons a{display:flex;flex-direction:column;align-items:center;gap:6px;padding:6px 2px;color:#fff;text-decoration:none;font-size:12px;text-shadow:1px 1px 0 #000;text-align:center}
.icons a:hover,.icons a:focus-visible{background:rgba(0,0,128,.55);outline:1px dotted #fff}
.ic{display:block;width:32px;height:32px;box-shadow:inset 2px 2px rgba(255,255,255,.55),inset -2px -2px rgba(0,0,0,.45),2px 2px 0 #000}
.i1{background:linear-gradient(135deg,#ffff55 50%,#e8b800 50%)}.i2{background:linear-gradient(135deg,#fff 50%,#9ad 50%)}.i3{background:linear-gradient(135deg,#f93 50%,#a50 50%)}.i4{background:repeating-conic-gradient(#000 0 25%,#fff 0 50%) 0 0/16px 16px}.i5{background:linear-gradient(135deg,#f55 50%,#900 50%)}.i6{background:#000;box-shadow:inset 2px 2px #444,inset -2px -2px #111,2px 2px 0 #000}.i7{background:linear-gradient(135deg,#6cf 50%,#038 50%)}.i8{background:linear-gradient(135deg,#6e6 50%,#183 50%)}
.wiz{counter-reset:s;list-style:none;padding:0}
.wiz li{counter-increment:s;position:relative;padding:8px 8px 8px 46px;margin:8px 0;background:#fff;box-shadow:inset 1px 1px #808080,inset -1px -1px #fff}
.wiz li::before{content:counter(s);position:absolute;left:8px;top:8px;width:28px;height:28px;background:var(--navy);color:#fff;font-weight:700;text-align:center;line-height:28px}
.progress{height:20px;margin:14px 0;background:#fff;box-shadow:inset 1px 1px #808080,inset -1px -1px #fff;padding:2px}
.progress span{display:block;height:100%;width:100%;background:repeating-linear-gradient(90deg,var(--navy) 0 12px,transparent 12px 15px)}
details{margin:0 0 8px}
summary{cursor:pointer;padding:7px 10px;font-weight:700;background:var(--grey);box-shadow:inset -1px -1px #0a0a0a,inset 1px 1px #fff,inset -2px -2px #808080,inset 2px 2px #dfdfdf;list-style:none}
summary::-webkit-details-marker{display:none}
summary::before{content:"+ ";font-family:"Courier New",monospace}
details[open]>summary::before{content:"- "}
details>p{margin:0;padding:10px 12px;background:#fff;box-shadow:inset 1px 1px #808080,inset -1px -1px #fff}
details .sunk{margin-top:2px}
summary:focus-visible{outline:1px dotted #000;outline-offset:-5px}
.win{scroll-margin-top:12px}

/* v3 surprises */
.boot{position:fixed;inset:0;z-index:100;background:#000;color:#c0c0c0;font:15px "Courier New",monospace;padding:28px;display:flex;flex-direction:column;justify-content:space-between;cursor:pointer}
.boot pre{margin:0;white-space:pre-wrap}
.boot .logo{align-self:center;text-align:center;color:#fff;font:700 28px Tahoma,sans-serif}
.boot .logo i{display:block;width:84px;height:84px;margin:0 auto 14px;background:conic-gradient(#e63 0 25%,#3a3 0 50%,#36f 0 75%,#fc0 0)}
.boot small{display:block;text-align:center;color:#888}
.dlg{position:fixed;inset:0;z-index:90;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,.35);padding:16px}
.dlg.open{display:flex}
.dlg .win{margin:0;max-width:420px;width:100%}
.dlg .row{display:flex;gap:14px;align-items:flex-start}
.dlg .x{flex:none;width:34px;height:34px;border-radius:50%;background:#c00;color:#fff;font:700 22px/34px Tahoma,sans-serif;text-align:center}
.dlg .btns{text-align:center;margin-top:14px}
.off{position:fixed;inset:0;z-index:120;background:#000;display:none;align-items:center;justify-content:center;text-align:center;color:#ff9a00;font:700 clamp(18px,4vw,30px)/1.4 "Courier New",monospace;padding:24px;cursor:pointer}
.off.open{display:flex}
.helper{position:fixed;right:14px;bottom:56px;z-index:20;max-width:270px;display:none}
.helper.open{display:block}
.helper .win{margin:0;filter:drop-shadow(4px 4px 0 rgba(0,0,0,.4))}
.helper .body{padding:10px 12px 12px;background:#ffffe1;font-size:13px}
.helper .btn{min-height:30px;padding:4px 12px;font-size:12px;margin:6px 6px 0 0}
.menu hr{border:0;border-top:1px solid #808080;border-bottom:1px solid #fff;margin:3px 2px}
@media(max-width:560px){.helper{right:8px;left:8px;max-width:none}}