:root{--night-1:#13112a;--night-2:#1b1838;--night-3:#2a2454;--gold:#f2c14e;--gold-light:#ffe38a;--gold-dark:#b9781a;--outline:#22160d;--parch:#fbf3dc;--parch-2:#efe0b6;--ink:#23262f;--muted:#5f5a6e;--accent:#3b2d7a;--green:#3f7d4f;--px:4px;--pixel:"Press Start 2P","Courier New",monospace}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--night-1);line-height:1.6}
a{color:var(--accent);text-decoration-thickness:2px;text-underline-offset:3px}
img{image-rendering:pixelated}
.wrap{max-width:980px;margin:0 auto;padding:0 16px}
.brand,h1,h2,.tag,.card b,.crumbs,summary,.out.main span,header nav a,footer{font-family:var(--pixel);font-variant-ligatures:none}
/* notched pixel panel */
.px{background:var(--parch);box-shadow:0 calc(-1*var(--px)) 0 0 var(--outline),0 var(--px) 0 0 var(--outline),calc(-1*var(--px)) 0 0 0 var(--outline),var(--px) 0 0 0 var(--outline),inset 0 calc(-1*var(--px)) 0 0 var(--parch-2),0 calc(3*var(--px)) 0 0 rgba(0,0,0,.35)}
/* top bar */
header.top{background:var(--night-1);border-bottom:4px solid var(--outline);box-shadow:0 4px 0 var(--gold-dark)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-size:16px;text-shadow:2px 2px 0 var(--outline)}
.brand span,.hero h1 span{color:var(--gold)}
.brand img{width:36px;height:36px;background:var(--parch);box-shadow:0 0 0 3px var(--gold-dark)}
header nav a{color:var(--gold-light);text-decoration:none;margin-left:18px;font-size:11px;white-space:nowrap}
header nav a:hover{color:#fff}
@media (max-width:520px){.brand{font-size:12px}.brand img{width:28px;height:28px}header nav a{margin-left:10px;font-size:9px}}
/* hero: pixel night sky */
.hero{position:relative;color:#fff;padding:34px 0 46px;background:radial-gradient(circle,#ffe38a 0 1.4px,transparent 1.5px) 0 0/151px 131px,radial-gradient(circle,#8b84d6 0 1.1px,transparent 1.2px) 47px 29px/89px 97px,radial-gradient(circle,#6f68b8 0 1px,transparent 1.1px) 13px 61px/61px 53px,linear-gradient(var(--night-1),var(--night-2) 55%,var(--night-3));border-bottom:4px solid var(--outline);box-shadow:inset 0 -12px 0 #1d1840}
.hero-in{display:flex;align-items:center;gap:30px}.hero-in>div{flex:1;min-width:0}
.mascot{width:200px;height:auto;flex:none;filter:drop-shadow(6px 6px 0 rgba(0,0,0,.4));animation:bob 2.4s steps(6) infinite}
@keyframes bob{50%{transform:translateY(-8px)}}@media (prefers-reduced-motion:reduce){.mascot{animation:none}}
.hero h1{margin:0;font-size:clamp(28px,6vw,52px);line-height:1.15;font-weight:400;text-shadow:4px 4px 0 var(--outline)}
.hero .tag{font-size:12px;line-height:1.7;color:var(--gold-light);margin:14px 0 10px;text-shadow:2px 2px 0 var(--outline)}
.hero p{max-width:600px;margin:0 0 18px;color:#e4defa}
.hero input{width:100%;max-width:520px;padding:14px 16px;border:0;border-radius:0;font-size:17px;background:var(--parch);color:var(--ink);box-shadow:0 -4px 0 0 var(--outline),0 4px 0 0 var(--outline),-4px 0 0 0 var(--outline),4px 0 0 0 var(--outline),0 0 0 8px var(--gold);margin:8px}
.hero input:focus{outline:none;box-shadow:0 -4px 0 0 var(--outline),0 4px 0 0 var(--outline),-4px 0 0 0 var(--outline),4px 0 0 0 var(--outline),0 0 0 8px var(--gold-light)}
.bm{font-size:13px;color:#cfc6f0;margin:14px 0 0}
@media (max-width:640px){.hero-in{flex-direction:column;text-align:center;gap:12px}.mascot{width:140px}.hero p{margin-left:auto;margin-right:auto}}
/* tool lists */
main.wrap{padding-bottom:20px}
h2{font-size:15px;line-height:1.5;font-weight:400;margin:34px 0 16px;color:var(--gold);text-shadow:3px 3px 0 var(--outline)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}
.card{display:block;margin:4px;padding:14px 16px;text-decoration:none;color:var(--ink);background:var(--parch);box-shadow:0 -4px 0 0 var(--outline),0 4px 0 0 var(--outline),-4px 0 0 0 var(--outline),4px 0 0 0 var(--outline),inset 0 -4px 0 0 var(--parch-2),0 12px 0 0 rgba(0,0,0,.35);transition:transform .12s steps(3)}
.card:hover{transform:translateY(-4px)}
.card b{display:block;margin-bottom:8px;font-size:11px;line-height:1.6;font-weight:400;color:var(--outline)}
.card span{color:var(--muted);font-size:14px}
#none{color:#e4defa}
/* tool pages */
.tool{color:#e9e5ff}
.crumbs{font-size:9px;color:#b9b2e0;margin:22px 0 0;line-height:1.8}.crumbs a{color:var(--gold-light)}
.tool h1{margin:10px 0 10px;font-family:var(--pixel);font-weight:400;font-size:clamp(18px,3.6vw,28px);line-height:1.4;color:var(--gold);text-shadow:3px 3px 0 var(--outline)}
.lede{color:#cfc6f0;margin:0 0 18px;font-size:17px}
.calc{position:relative;display:grid;grid-template-columns:1.1fr 1fr;gap:18px;padding:18px;margin:64px 4px 10px;color:var(--ink);background:var(--parch);box-shadow:0 -4px 0 0 var(--outline),0 4px 0 0 var(--outline),-4px 0 0 0 var(--outline),4px 0 0 0 var(--outline),inset 0 -4px 0 0 var(--parch-2),0 12px 0 0 rgba(0,0,0,.35)}
.peek{position:absolute;top:-74px;right:18px;width:72px;height:auto;pointer-events:none}
.about-mascot{float:right;width:150px;height:auto;margin:0 0 10px 16px}
@media (max-width:720px){.calc{grid-template-columns:1fr}}
form label{display:block;font-weight:700;margin:10px 0 4px}form small{display:block;color:var(--muted);font-size:13px;margin-top:3px}
.field{display:flex;align-items:center;gap:8px}
.field input,.field select,.field textarea{flex:1;min-width:0;padding:10px 12px;font-size:16px;border:3px solid var(--outline);border-radius:0;background:#fff;font-family:inherit;box-shadow:inset 3px 3px 0 #e8e2f5}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:inset 3px 3px 0 #e8e2f5,0 0 0 3px var(--gold)}
.unit{color:var(--muted);font-size:14px;white-space:nowrap}label.check{display:flex;gap:8px;align-items:center;font-weight:700}
.results{background:var(--night-2);color:#fff;padding:14px;align-self:start;box-shadow:0 0 0 4px var(--outline),inset 0 0 0 3px var(--night-3)}
.out{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:2px dashed #3d3670}
.out:last-child{border:0}
.out b{text-align:right;font-variant-numeric:tabular-nums;word-break:break-word;color:#fff}
.out.main span{font-size:10px;line-height:1.8;color:var(--gold-light)}
.out.main b{font-family:var(--pixel);font-weight:400;font-size:20px;color:var(--gold);text-shadow:3px 3px 0 var(--outline)}
.out.main{flex-wrap:wrap;align-items:baseline}.out.main b{white-space:nowrap;margin-left:auto}
@media (max-width:520px){.out.main b{font-size:16px}.out.main span{font-size:9px}}
.out ul{margin:0;padding-left:18px;text-align:left;font-weight:400}
.err{background:#5c1f1a;color:#ffd9d4;padding:8px 10px;margin-bottom:8px;box-shadow:0 0 0 3px #b03a2e}
article{max-width:760px}article p{margin:0 0 12px}
article h2,.tool > h2{margin-top:30px}
details{margin:12px 4px;padding:10px 14px;color:var(--ink);background:var(--parch);box-shadow:0 -4px 0 0 var(--outline),0 4px 0 0 var(--outline),-4px 0 0 0 var(--outline),4px 0 0 0 var(--outline)}
summary{cursor:pointer;font-size:10px;line-height:1.8}
details p{margin:8px 0 0}
/* about / privacy */
.prose{max-width:760px;padding-top:20px;padding-bottom:40px;color:#e9e5ff}
.prose h1{font-family:var(--pixel);font-weight:400;font-size:clamp(18px,3.6vw,26px);line-height:1.4;color:var(--gold);text-shadow:3px 3px 0 var(--outline)}
.prose a{color:var(--gold-light)}.muted{color:#b9b2e0}
/* footer */
footer{margin-top:48px;background:var(--night-1);color:#b9b2e0;font-size:9px;line-height:2;border-top:4px solid var(--outline);box-shadow:inset 0 4px 0 var(--night-3)}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;padding:18px 16px}
footer a{color:var(--gold-light)}