:root{--paper:#EEF1EC;--panel:#FFFFFF;--ink:#0E3B43;--ink2:#4A6468;--line:#CBD5D0;--accent:#E8B923;--on-accent:#0E3B43;--bar-before:#C9D3CE}
@media (prefers-color-scheme:dark){:root{--paper:#0B2227;--panel:#10333A;--ink:#E8F0EC;--ink2:#9DB4B2;--line:#25474E;--bar-before:#2C535A}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans",sans-serif}
a{color:var(--ink);text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:2px}
header.top{border-top:6px solid var(--accent);padding:12px 18px 6px;max-width:760px;margin:0 auto}
.bar-top{display:flex;justify-content:space-between;align-items:center;gap:12px}
a.logo{font-weight:800;font-size:1.25rem;letter-spacing:-.02em;text-decoration:none}
nav.main{display:flex;gap:2px 18px;flex-wrap:wrap;margin:6px 0 0;font-size:.95rem}
nav.main a{color:var(--ink2);text-decoration:none;padding:4px 0}
nav.main a:hover{color:var(--ink);text-decoration:underline}
main{max-width:760px;margin:0 auto;padding:8px 18px 56px}
.crumbs{font-size:.85rem;color:var(--ink2);margin:10px 0 18px}
.crumbs a{color:var(--ink2)}
h1{font-size:clamp(1.9rem,6.2vw,2.85rem);line-height:1.08;letter-spacing:-.025em;font-weight:800;margin:0 0 10px}
h2{font-size:1.25rem;line-height:1.3;font-weight:700;margin:40px 0 10px;letter-spacing:-.01em}
.sub{font-size:1.08rem;color:var(--ink2);margin:0 0 22px;max-width:56ch}
p,li{max-width:66ch}
.card{background:var(--panel);border:2px solid var(--ink);border-radius:4px;padding:20px 18px 14px;box-shadow:6px 6px 0 var(--accent)}
.target label,.dims label{display:block;font-size:.9rem;color:var(--ink2);margin-bottom:2px}
.tv{display:flex;align-items:baseline;gap:10px}
input[type=number]{font:inherit;color:var(--ink);background:transparent;border:0;border-bottom:3px solid var(--ink);border-radius:0;padding:0 2px;-moz-appearance:textfield}
input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
#target,.num{font-size:3.4rem;font-weight:800;line-height:1.1;letter-spacing:-.03em;font-variant-numeric:tabular-nums;width:5.2ch}
select{font:inherit;color:var(--ink);background:var(--panel);border:2px solid var(--line);border-radius:4px;padding:8px 10px}
#unit{font-size:1.4rem;font-weight:700;border-color:var(--ink)}
.dims{display:flex;align-items:flex-end;gap:10px;flex-wrap:wrap}
.dims .x,.dims .px{font-size:1.4rem;font-weight:700;padding-bottom:6px;color:var(--ink2)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 4px}
.chip{font:inherit;font-size:.95rem;font-weight:600;color:var(--ink);background:transparent;border:2px solid var(--line);border-radius:999px;padding:6px 14px;cursor:pointer}
.chip:hover,.chip[aria-pressed=true]{border-color:var(--ink);background:var(--accent);color:var(--on-accent)}
.row{display:flex;gap:10px 14px;align-items:center;flex-wrap:wrap;margin:12px 0 0}
.row label{font-size:.9rem;color:var(--ink2)}
#drop{margin-top:16px;border:2px dashed var(--ink2);border-radius:4px;padding:30px 14px;text-align:center;cursor:pointer;background:transparent}
#drop:hover,#drop.over{border-color:var(--ink);background:color-mix(in srgb,var(--accent) 22%,transparent)}
#drop p{margin:4px auto;color:var(--ink2)}
#drop p strong{color:var(--ink);font-size:1.1rem}
.btn{display:inline-block;font:inherit;font-weight:700;color:var(--on-accent);background:var(--accent);border:2px solid var(--on-accent);border-radius:4px;padding:10px 18px;cursor:pointer;text-decoration:none}
.btn:hover{filter:brightness(.95)}
.btn.small{padding:7px 14px;font-size:.95rem}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
#drop .btn{margin-top:8px}
#file{display:none}
#msg{color:#B3261E;min-height:1.2em;margin:8px 0 0;font-size:.95rem}
@media (prefers-color-scheme:dark){#msg{color:#FF8A80}}
ul#results{list-style:none;margin:6px 0 0;padding:0}
.item{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;padding:14px 0;border-top:1px solid var(--line)}
.item .thumb{width:56px;height:56px;object-fit:cover;border-radius:2px;border:1px solid var(--line)}
.item .meta{flex:1;min-width:150px;display:flex;flex-direction:column;line-height:1.25}
.item .name{font-size:.82rem;color:var(--ink2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}
.item .big{font-size:1.7rem;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.item .big.err{font-size:1rem;font-weight:600}
.item .meta .small{font-size:.85rem;color:var(--ink2)}
.bar{flex-basis:100%;height:8px;background:var(--bar-before);border-radius:2px;position:relative;overflow:hidden}
.bar i{position:absolute;inset:0 auto 0 0;width:0;background:var(--accent);transition:width .8s cubic-bezier(.2,.7,.2,1)}
.privacy{font-size:.85rem;color:var(--ink2);margin:10px 0 0}
article ol,article ul{padding-left:1.2em}
.tips li{margin-bottom:6px}
details{border-bottom:1px solid var(--line);padding:10px 0}
summary{font-weight:600;cursor:pointer}
details p{margin:8px 0 2px;color:var(--ink2)}
.links{display:flex;flex-wrap:wrap;gap:6px 20px;padding:0;margin:8px 0;list-style:none}
.links a{font-size:.95rem}
.grid{margin:8px 0}
.tile{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding:12px 2px;border-bottom:1px solid var(--line);text-decoration:none}
.tile strong{font-weight:700}
.tile span{color:var(--ink2);font-size:.92rem}
.tile:hover strong{text-decoration:underline}
table{border-collapse:collapse;width:100%;margin:14px 0}
th,td{border-bottom:1px solid var(--line);padding:9px 8px;text-align:left}
th{font-weight:700}
.ad{margin:32px 0;min-height:250px;text-align:center}
.ad small{display:block;color:var(--ink2);font-size:.75rem;margin-bottom:4px}
footer{border-top:1px solid var(--line);padding:22px 18px 40px;color:var(--ink2);font-size:.9rem;max-width:760px;margin:0 auto}
footer .links{justify-content:flex-start}
footer a{color:var(--ink2)}
@media (max-width:480px){#target,.num{font-size:2.9rem}.card{box-shadow:4px 4px 0 var(--accent)}}
@media (prefers-reduced-motion:reduce){.bar i{transition:none}}
[hidden]{display:none!important}
input[type=number].num{font-size:3rem;font-weight:800;line-height:1.1;letter-spacing:-.03em;width:4.6ch}
h1,.sub{text-wrap:balance}
@media (max-width:480px){input[type=number].num{font-size:2.5rem}}
.field{margin:12px 0}
.field label{display:block;font-size:.9rem;color:var(--ink2);margin-bottom:4px}
textarea,input[type=text],input[type=date]{font:inherit;color:var(--ink);background:var(--panel);border:2px solid var(--line);border-radius:4px;padding:10px;width:100%}
textarea{min-height:170px;resize:vertical}
textarea:focus,input[type=text]:focus,input[type=date]:focus{border-color:var(--ink)}
input[type=number].plain{font:inherit;font-size:1.1rem;color:var(--ink);background:var(--panel);border:2px solid var(--line);border-radius:4px;padding:10px;width:100%;max-width:100%}
input[type=number].plain:focus{border-color:var(--ink)}
.row input[type=number].plain{width:8.5em}
input[type=range]{width:100%;accent-color:var(--accent)}
input[type=color]{width:56px;height:40px;border:2px solid var(--line);border-radius:4px;background:var(--panel);padding:2px}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:4px 16px}
.stat{border-top:2px solid var(--ink);padding-top:6px;margin:12px 0}
.stat b{display:block;font-size:1.7rem;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.2;word-break:break-word}
.stat span{font-size:.85rem;color:var(--ink2)}
.btnrow{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0;align-items:center}
canvas.checker{max-width:100%;height:auto;border:1px solid var(--line);background-image:conic-gradient(#d4d4d4 25%,#fff 0 50%,#d4d4d4 0 75%,#fff 0);background-size:16px 16px}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace}
.note{color:var(--ink2);font-size:.95rem;min-height:1.2em}
.jmsg{min-height:1.4em;font-weight:600}
.jmsg.bad{color:#B3261E}.jmsg.ok{color:#1B7A3E}
@media (prefers-color-scheme:dark){.jmsg.bad{color:#FF8A80}.jmsg.ok{color:#7FD99A}}
.hdr-actions{display:flex;align-items:center;gap:8px}
.iconbtn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:2px solid var(--ink);border-radius:4px;background:transparent;color:var(--ink);cursor:pointer}
.iconbtn svg{fill:currentColor}
.iconbtn[aria-expanded=true]{background:var(--accent);color:var(--on-accent)}
header.top{position:relative}
.menu{position:absolute;right:18px;top:62px;z-index:20;width:min(430px,calc(100vw - 36px));max-height:min(78vh,640px);overflow:auto;background:var(--panel);border:2px solid var(--ink);border-radius:4px;box-shadow:5px 5px 0 var(--accent);padding:6px 16px 14px}
.menu p.mg{margin:14px 0 4px;font-weight:700;font-size:.95rem}
.menu ul{list-style:none;margin:0;padding:0}
.menu a{display:block;padding:7px 0;text-decoration:none;border-bottom:1px solid var(--line)}
.menu a:hover{text-decoration:underline}
.menu .quick{display:flex;flex-wrap:wrap;gap:6px 14px;margin:2px 0}
.menu .quick a{border:0;padding:3px 0;font-size:.92rem;color:var(--ink2)}
h3{font-size:1.02rem;margin:22px 0 4px;font-weight:700}
canvas.pv{max-width:100%;height:auto;border:1px solid var(--line)}