:root{--accent:#4338CA;--tint:color-mix(in oklab,var(--accent) 7%,var(--surface));--tint2:color-mix(in oklab,var(--accent) 14%,var(--surface))}
@media (prefers-color-scheme:dark){:root{--accent:#A5B4FC;--accent-ink:#1e1b4b}}
.muted{color:var(--muted)}

/* quick box */
.uc-q{position:relative;margin-bottom:14px}
.uc-q input{width:100%;min-height:52px;font-size:17px;padding:12px 16px 12px 44px;border-radius:14px;border:1.5px solid color-mix(in oklab,var(--accent) 30%,var(--line));background:var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5'/%3E%3C/svg%3E") no-repeat 14px center/20px}
.uc-qr{margin-top:8px;padding:12px 14px;border-radius:12px;background:var(--tint);display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;justify-content:space-between}
.uc-qr p{margin:0;font-size:17px}.uc-qr b{color:var(--accent);font-size:20px}

/* converter card */
.uc-card{border:1px solid var(--line);border-radius:var(--r-panel);background:var(--surface);padding:18px;box-shadow:var(--shadow)}
@media (max-width:600px){.uc-card{padding:14px}}
.uc-top{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;margin-bottom:14px}
.uc-top label{margin:0;font-size:14px;color:var(--muted);font-weight:600}
.uc-top select{width:auto;min-width:150px}
.uc-ing{display:inline-flex;align-items:center;gap:8px}
.uc-box{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center}
@media (max-width:700px){.uc-box{grid-template-columns:1fr}.uc-swap{justify-self:center;transform:rotate(0)}}
.uc-side{display:grid;gap:8px}
.uc-in{font-size:28px!important;font-weight:700;min-height:62px;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
@media (max-width:600px){.uc-in{font-size:24px!important;min-height:56px}}
.uc-swap{width:48px;height:48px;border-radius:50%;border:1px solid var(--line);background:var(--bg);color:var(--accent);display:grid;place-items:center;cursor:pointer;transition:background .15s}
.uc-swap svg{transform:rotate(90deg)}
@media (max-width:700px){.uc-swap svg{transform:none}}
.uc-swap:hover{background:var(--tint2)}
.uc-swap.spin1{animation:ucspin .35s cubic-bezier(.2,.8,.2,1)}
@keyframes ucspin{from{transform:rotate(-180deg)}to{transform:none}}
.uc-res{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding:12px 14px;border-radius:12px;background:var(--tint)}
.uc-eq{margin:0;font-size:18px;word-break:break-word}.uc-eq b{color:var(--accent);font-size:21px}
.uc-res .btn{flex:none;display:inline-flex;gap:6px;align-items:center}
.uc-sub{margin:10px 0 0;font-weight:600}
.uc-f{margin:8px 0 0;color:var(--muted);font-size:15px}
.uc-ftin{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line)}
.uc-ftin>b{display:block;font-size:14px;margin-bottom:8px}
.uc-ftin-row{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px}
.uc-ftin-row input{width:84px;text-align:right;font-variant-numeric:tabular-nums}
.uc-ftin-row #uccm{width:110px}
.uc-opt{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:14px}
.uc-opt label{margin:0;color:var(--muted)}.uc-opt select{width:auto;min-height:36px;padding:4px 30px 4px 10px}
.uc-all{margin-top:16px;border:1px solid var(--line);border-radius:var(--r-panel);background:var(--surface)}
.uc-all summary{cursor:pointer;padding:12px 16px;font-weight:700}
.uc-all .tablewrap{margin:0;border:0;border-top:1px solid var(--line);border-radius:0 0 var(--r-panel) var(--r-panel);max-height:420px;overflow:auto}
.uc-all th{font-weight:400}
.uc-all th button{background:none;border:0;padding:0;font:inherit;color:var(--text);cursor:pointer;text-align:left;text-decoration:underline;text-decoration-color:color-mix(in oklab,var(--text) 25%,transparent);text-underline-offset:3px}
.uc-all th button:hover{color:var(--accent)}
.uc-all td{font-variant-numeric:tabular-nums;word-break:break-all}
.uc-all tr.on th,.uc-all tr.on td{background:var(--tint2)}

/* blocks */
.blk{margin-top:32px}
.blk h2{margin-bottom:12px}
.pairs,.cats,.tools{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.pairs{grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}
.cats{grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}
.tools{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.pairs a,.cats a,.tools a{display:grid;gap:2px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);text-decoration:none;height:100%;transition:border-color .15s,background .15s}
.pairs a:hover,.cats a:hover,.tools a:hover{border-color:var(--accent);background:var(--tint)}
.pairs a[aria-current],.cats a[aria-current],.tools a[aria-current]{border-color:var(--accent);background:var(--tint2)}
.pairs b{font-size:16px;color:var(--accent)}
.pairs span,.cats span,.tools span{font-size:13px;color:var(--muted);overflow:hidden;text-overflow:ellipsis}
.cats a{grid-template-columns:auto 1fr;column-gap:10px;align-items:center}
.cats b{grid-column:2}.cats span{grid-column:2;white-space:nowrap}
.ci{grid-row:1/3;width:34px;height:34px;border-radius:10px;background:var(--tint2);position:relative}
.ci::after{content:attr(data-g);position:absolute;inset:0;display:grid;place-items:center;font-style:normal;font-weight:800;font-size:13px;color:var(--accent)}
.ci-length::after{content:"cm"}.ci-weight::after{content:"kg"}.ci-area::after{content:"m²"}.ci-volume::after{content:"L"}.ci-temperature::after{content:"°C"}.ci-speed::after{content:"km/h";font-size:9px}.ci-time::after{content:"h"}.ci-data::after{content:"GB";font-size:11px}.ci-datarate::after{content:"Mbps";font-size:9px}.ci-pressure::after{content:"psi";font-size:11px}.ci-energy::after{content:"kcal";font-size:10px}.ci-power::after{content:"kW"}.ci-fuel::after{content:"km/L";font-size:9px}.ci-angle::after{content:"°"}.ci-frequency::after{content:"Hz"}.ci-cooking::after{content:"cup";font-size:11px}
.tbl{width:100%}
.tbl.num td{font-variant-numeric:tabular-nums}
.tbl.num td:last-child{font-weight:600}
.ans .fx{font-size:20px;margin:0 0 6px}.ans code{background:var(--tint);padding:6px 10px;border-radius:8px;font-family:inherit;font-weight:700}

/* tools */
.tl{display:grid;gap:14px}
.tl+.tl{margin-top:16px}
.tl .field{margin-bottom:0}.tl .result{margin-top:0}.tl .grid2,.tl .grid3{align-items:start}
.tl .kv{display:block;margin:0}
.tl h3{margin:6px 0 0}
.h3{font-size:18px;margin:0}
.inrow{display:flex;gap:8px;align-items:center}
.inrow input{min-width:0;flex:1}.inrow select{width:auto}
.kv>div{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 16px;padding:8px 0;border-bottom:1px solid var(--line)}
.kv>div:last-child{border-bottom:0}
.kv dt{color:var(--muted)}.kv dd{margin:0;text-align:right}
.cmp{margin:0;line-height:1.5}
.sviz{border:1px solid var(--line);border-radius:12px;background:var(--bg);padding:8px}
.sviz svg{width:100%;max-width:560px;height:auto;display:block;margin:0 auto}
.sviz .s1{fill:color-mix(in oklab,var(--accent) 18%,transparent);stroke:var(--accent);stroke-width:2}
.sviz .s2{fill:none;stroke:#ea580c;stroke-width:2;stroke-dasharray:6 4}
.sviz .t1{fill:var(--accent);font-weight:700;font-size:14px}.sviz .t2{fill:#ea580c;font-weight:700;font-size:14px}
.brow{display:grid;grid-template-columns:120px 1fr auto;gap:10px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.brow:last-child{border-bottom:0}
.bl{font-weight:700;display:grid}.bl small{color:var(--muted);font-weight:400}
.brow code,.bres code{font-size:18px;word-break:break-all;font-variant-numeric:tabular-nums}
@media (max-width:600px){.brow{grid-template-columns:1fr auto}.brow .bl{grid-column:1/-1}}
.ib{display:inline-grid;place-items:center;width:34px;height:34px;border:0;border-radius:8px;background:transparent;color:var(--muted);cursor:pointer}
.ib:hover{background:var(--surface-2);color:var(--text)}
.words{font-size:22px;font-weight:700;line-height:1.5;word-break:keep-all;overflow-wrap:anywhere;margin:0 0 6px}
.chk{display:flex;align-items:center;gap:8px;font-weight:400}
.chk input{width:18px;height:18px;accent-color:var(--accent)}
.rgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:6px}
.rgrid div{display:flex;justify-content:space-between;gap:8px;padding:6px 10px;border:1px solid var(--line);border-radius:8px;background:var(--surface);font-variant-numeric:tabular-nums}
.rgrid span{font-weight:700;color:var(--accent);letter-spacing:.02em}
#rbig,#rdate{font-size:30px;font-weight:800;letter-spacing:.03em;word-break:break-all;margin:0}