/* Servobay — engineering workbench / CAD sheet */
:root{
  --bg:#18202a; --bg2:#1d2631; --bg3:#222d3a; --line:rgba(226,221,208,.12); --line2:rgba(226,221,208,.22);
  --grid:rgba(160,180,200,.055); --grid2:rgba(160,180,200,.1);
  --chalk:#e4dfd3; --chalk2:#b9b6ad; --mute:#8794a1; --o:#b8693a; --o2:#d08a5c; --ok:#8fae8a; --bad:#c7705e;
  --sans:'Space Grotesk',system-ui,sans-serif; --mono:'IBM Plex Mono',ui-monospace,monospace;
  --r:4px; --pad:clamp(16px,4vw,56px); --max:1320px;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--chalk);font:16px/1.6 var(--sans);overflow-x:hidden;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px),
  linear-gradient(var(--grid2) 1px,transparent 1px),linear-gradient(90deg,var(--grid2) 1px,transparent 1px);
  background-size:16px 16px,16px 16px,80px 80px,80px 80px;background-attachment:fixed}
a{color:inherit}
code,pre,.mono{font-family:var(--mono)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--o);color:#fff;padding:8px 12px;z-index:200}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--o2);outline-offset:3px}
.muted{color:var(--mute)}
.mono-wrap{word-break:break-all;overflow-wrap:anywhere}

/* ---------- title-block nav ---------- */
.tb{position:sticky;top:0;z-index:50;background:rgba(24,32,42,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line2)}
.tb__in{max-width:var(--max);margin:0 auto;padding:0 var(--pad);height:60px;display:flex;align-items:center;gap:24px}
.tb__brand{display:flex;align-items:center;gap:10px;text-decoration:none;min-width:0}
.tb__mark{width:28px;height:28px;fill:none;stroke:var(--chalk);stroke-width:1.6;stroke-linecap:round}
.tb__mark circle:last-of-type{stroke:var(--o)}
.tb__name{font-weight:700;letter-spacing:.02em;font-size:18px}
.tb__dwg{font:500 10.5px var(--mono);color:var(--mute);border-left:1px solid var(--line2);padding-left:10px;letter-spacing:.06em;white-space:nowrap}
.tb__nav{position:relative;display:flex;gap:2px;margin-left:auto}
.tb__nav a{font:500 13px var(--sans);text-decoration:none;color:var(--chalk2);padding:8px 11px;border-radius:var(--r);transition:color .2s}
.tb__nav a i{font:500 10px var(--mono);font-style:normal;color:var(--mute);margin-right:6px}
.tb__nav a:hover,.tb__nav a.is-on{color:var(--chalk)}
.tb__ind{position:absolute;bottom:-11px;left:0;height:2px;width:0;background:var(--o);transition:transform .35s cubic-bezier(.2,.8,.2,1),width .35s cubic-bezier(.2,.8,.2,1)}
.tb__right{display:flex;align-items:center;gap:10px;margin-left:8px}
.tb__x{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--line2);border-radius:var(--r)}
.tb__x svg{width:14px;height:14px;stroke:var(--chalk);stroke-width:2}
.tb__menu{display:none;width:38px;height:38px;border:1px solid var(--line2);background:transparent;border-radius:var(--r);color:var(--chalk);cursor:pointer}
.tb__menu svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.8;fill:none}

/* ---------- wallet ---------- */
.wb{position:relative}
.wb-btn{font:600 13px var(--mono);letter-spacing:.02em;color:var(--chalk);background:transparent;border:1px solid var(--o);padding:8px 14px;border-radius:var(--r);cursor:pointer;white-space:nowrap;transition:transform .12s,background .2s}
.wb-btn:hover{background:rgba(184,105,58,.14)}
.wb-btn:active{transform:scale(.97)}
.wb-btn.is-on{background:var(--o);color:#14191f;border-color:var(--o)}
.wb-menu{position:absolute;right:0;top:calc(100% + 8px);z-index:300;width:270px;max-width:calc(100vw - 24px);background:var(--bg3);border:1px solid var(--line2);border-radius:var(--r);padding:8px;box-shadow:0 16px 40px rgba(0,0,0,.45)}
.wb-item{display:flex;align-items:center;gap:10px;width:100%;text-align:left;font:500 13px var(--sans);color:var(--chalk);background:transparent;border:0;padding:9px 10px;border-radius:3px;cursor:pointer;text-decoration:none}
.wb-item:hover{background:rgba(226,221,208,.07)}
.wb-item img{width:18px;height:18px;border-radius:3px}
.wb-addr{font:12px var(--mono);word-break:break-all;padding:8px 10px;color:var(--chalk2);border-bottom:1px dashed var(--line2)}
.wb-bal{font:600 13px var(--mono);padding:8px 10px;color:var(--o2)}
.wb-note{font-size:12px;color:var(--mute);padding:8px 10px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 14px var(--sans);color:var(--chalk);background:transparent;border:1px solid var(--line2);padding:11px 18px;border-radius:var(--r);cursor:pointer;text-decoration:none;transition:transform .12s,border-color .2s,background .2s}
.btn:hover{border-color:var(--chalk2)}
.btn:active{transform:translateY(1px) scale(.985)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn--o{background:var(--o);border-color:var(--o);color:#141a20}
.btn--o:hover{background:var(--o2);border-color:var(--o2)}
.btn--sm{padding:8px 13px;font-size:13px}
.lnk{background:none;border:0;color:var(--o2);font:500 12px var(--mono);cursor:pointer;padding:2px;text-decoration:underline;text-underline-offset:3px}
.row2{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

/* ---------- hero ---------- */
main{display:block}
.hero{max-width:var(--max);margin:0 auto;padding:clamp(32px,6vw,72px) var(--pad) 48px;display:grid;grid-template-columns:5fr 7fr;gap:clamp(24px,4vw,56px);align-items:center;min-height:calc(100vh - 60px)}
.hero>*{min-width:0}
.tag{font:500 11.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--chalk2);margin:0 0 18px;display:flex;gap:10px;align-items:center}
.tag__k{color:var(--o2);border:1px solid rgba(184,105,58,.5);padding:2px 7px;border-radius:2px}
.hero__h{font-weight:600;font-size:clamp(38px,4.4vw,66px);line-height:.98;letter-spacing:-.035em;margin:0 0 22px}
.hero__h .w{display:inline-block;opacity:0;transform:translateY(.4em);transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1)}
.hero__h .w--o{color:var(--o2)}
.is-in .hero__h .w{opacity:1;transform:none}
.hero__sub{font-size:clamp(16px,1.35vw,19px);color:var(--chalk2);max-width:34em;margin:0 0 26px}
.rv-h{opacity:0;transform:translateY(14px);transition:opacity .8s,transform .8s cubic-bezier(.2,.8,.2,1)}
.is-in .rv-h{opacity:1;transform:none}
.is-in .rv-h:nth-of-type(1){transition-delay:.55s}
.is-in .hero__cta{transition-delay:.7s}
.is-in .ca{transition-delay:.8s}
.is-in .hero__dims{transition-delay:.9s}
.is-in .hero__fig{transition-delay:.35s}
.hero__cta{display:flex;flex-wrap:wrap;gap:10px}
.ca{display:flex;align-items:center;gap:10px;margin-top:18px;border:1px dashed var(--line2);padding:8px 10px;border-radius:var(--r);max-width:100%}
.ca__k{font:600 11px var(--mono);color:var(--o2)}
.ca__v{font-size:12px;color:var(--chalk2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0;flex:1}
.ca__b{position:relative;font:500 12px var(--mono);color:var(--chalk);background:var(--bg3);border:1px solid var(--line2);border-radius:3px;padding:5px 10px;cursor:pointer;overflow:hidden;white-space:nowrap}
.ca__b .c2{position:absolute;inset:0;display:grid;place-items:center;background:var(--ok);color:#13181d;transform:translateY(100%);transition:transform .25s}
.ca__b.is-done .c2{transform:none}
.ca__b:disabled{opacity:.4}
.hero__dims{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin:34px 0 0;border-top:1px solid var(--line2)}
.hero__dims div{padding:12px 12px 0 0;border-right:1px dashed var(--line);min-width:0}
.hero__dims div:last-child{border-right:0}
.hero__dims dt{font:500 10.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--mute)}
.hero__dims dd{margin:4px 0 0;font-size:14px;font-weight:500}
.hero__fig{position:relative;margin:0;aspect-ratio:7/5.4;border:1px solid var(--line2);background:rgba(17,23,31,.6);border-radius:var(--r)}
.hero__fig canvas{position:absolute;inset:0;width:100%;height:100%}
.hero__fig::before,.hero__fig::after{content:"";position:absolute;width:14px;height:14px;border:1px solid var(--o);pointer-events:none}
.hero__fig::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.hero__fig::after{bottom:-1px;right:-1px;border-left:0;border-top:0}
.titleblock{position:absolute;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,auto);border-top:1px solid var(--line2);border-left:1px solid var(--line2);background:rgba(24,32,42,.92);font:11px var(--mono);color:var(--chalk2)}
.titleblock span{padding:6px 10px;border-right:1px solid var(--line);white-space:nowrap}
.titleblock span:last-child{border-right:0}
.titleblock b{font-weight:500;color:var(--mute);margin-right:4px}
.titleblock em{font-style:normal;color:var(--chalk)}

/* ---------- section headings ---------- */
.sh{font-size:clamp(22px,2.4vw,30px);font-weight:600;letter-spacing:-.015em;margin:0 0 18px;display:flex;align-items:center;flex-wrap:wrap;gap:12px}
.sh i{font:500 11px var(--mono);font-style:normal;color:var(--o2);border:1px solid rgba(184,105,58,.5);padding:3px 7px;border-radius:2px;letter-spacing:.08em}
.live{display:inline-flex;align-items:center;gap:7px;font:500 11px var(--mono);color:var(--ok);letter-spacing:.04em;text-transform:uppercase}
.dot{width:7px;height:7px;border-radius:50%;background:var(--ok);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}

.rv{opacity:0;transform:translateY(26px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.rv.is-vis{opacity:1;transform:none}

/* ---------- clock ---------- */
.clock{max-width:var(--max);margin:0 auto 24px;padding:28px var(--pad)}
.clock__head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;border-bottom:1px solid var(--line2);padding-bottom:6px;margin-bottom:0}
.clock__note{color:var(--mute);font-size:14px;margin:0 0 18px;max-width:40em}
.clock__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr)) minmax(0,1.6fr);border-bottom:1px solid var(--line2)}
.gauge{padding:18px 18px 16px 0;border-right:1px dashed var(--line);display:flex;flex-direction:column;gap:2px;min-width:0}
.gauge+.gauge{padding-left:18px}
.gauge:last-child{border-right:0}
.gauge__k{font:500 10.5px var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--mute)}
.gauge__v{font:500 clamp(22px,2.4vw,32px)/1.2 var(--mono);color:var(--chalk);letter-spacing:-.02em;min-height:1.2em;transition:color .5s}
.gauge__v.flash{color:var(--o2)}
.gauge__u{font:11px var(--mono);color:var(--mute)}
.spark{width:100%;height:56px;margin-top:6px}
.spark path{fill:none;stroke:var(--o2);stroke-width:1.5;vector-effect:non-scaling-stroke}
.spark .base{stroke:var(--line2);stroke-dasharray:3 4}
.sk:empty::before,.sk.is-load{color:transparent;background:linear-gradient(90deg,rgba(226,221,208,.05),rgba(226,221,208,.14),rgba(226,221,208,.05));background-size:200% 100%;animation:shim 1.3s infinite;border-radius:3px}
@keyframes shim{to{background-position:-200% 0}}

/* ---------- sheet ---------- */
.sheet{max-width:var(--max);margin:0 auto;padding:clamp(48px,7vw,96px) var(--pad) 24px}
.sheet__h{display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:start;border-top:1px solid var(--line2);padding-top:22px;margin-bottom:26px}
.sheet__no{font:500 clamp(40px,5vw,64px)/.9 var(--mono);color:transparent;-webkit-text-stroke:1px var(--o2);letter-spacing:-.04em}
.sheet__h h2{font-size:clamp(26px,3vw,40px);font-weight:600;letter-spacing:-.025em;margin:0 0 6px;line-height:1.1}
.sheet__h p{margin:0;color:var(--chalk2);max-width:46em}
.bench{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px}
.bench--traj{grid-template-columns:340px minmax(0,1fr)}
.bench--pid{grid-template-columns:minmax(0,1fr) 340px}
.bench>*{min-width:0}
.bench__cv{position:relative;border:1px solid var(--line2);background:rgba(17,23,31,.65);border-radius:var(--r);aspect-ratio:16/11;width:100%}
.bench__cv canvas{position:absolute;inset:0;width:100%;height:100%;cursor:crosshair;touch-action:none}
.bench__hint{position:absolute;left:12px;bottom:10px;font:11px var(--mono);color:var(--mute);pointer-events:none}
.bench__side{display:flex;flex-direction:column;gap:14px}
.fs{border:1px solid var(--line2);border-radius:var(--r);padding:12px 14px 14px;margin:0;background:rgba(29,38,49,.7)}
.fs legend{font:500 11px var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--chalk2);padding:0 6px;display:flex;gap:8px;align-items:center}
.badge{font:500 10px var(--mono);color:var(--o2);border:1px solid rgba(184,105,58,.5);padding:1px 5px;border-radius:2px;text-transform:lowercase;letter-spacing:.04em}
.sl{display:grid;grid-template-columns:minmax(0,1fr) 72px;grid-template-rows:auto auto;column-gap:10px;margin-top:8px;font-size:13px;color:var(--chalk2)}
.sl span{grid-column:1/2}
.sl output{grid-column:2;grid-row:1/3;align-self:center;text-align:right;font:500 12.5px var(--mono);color:var(--chalk)}
.sl input{grid-column:1;width:100%}
input[type=range]{-webkit-appearance:none;appearance:none;height:18px;background:transparent;cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:2px;background:var(--line2)}
input[type=range]::-moz-range-track{height:2px;background:var(--line2)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;margin-top:-5px;background:var(--bg);border:2px solid var(--o2);border-radius:1px;transform:rotate(45deg);transition:transform .15s}
input[type=range]::-moz-range-thumb{width:10px;height:10px;background:var(--bg);border:2px solid var(--o2);border-radius:1px}
input[type=range]:active::-webkit-slider-thumb{transform:rotate(45deg) scale(1.3)}
.seg{position:relative;display:grid;grid-template-columns:1fr 1fr;margin-top:12px;border:1px solid var(--line2);border-radius:3px}
.seg__b{position:relative;z-index:1;background:none;border:0;color:var(--chalk2);font:500 12.5px var(--sans);padding:7px;cursor:pointer;transition:color .25s}
.seg__b.is-on{color:#141a20}
.seg__ind{position:absolute;top:2px;bottom:2px;left:2px;width:calc(50% - 4px);background:var(--o2);border-radius:2px;transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.seg[data-pos="1"] .seg__ind{transform:translateX(calc(100% + 4px))}
.num{display:grid;grid-template-columns:72px minmax(0,1fr) 54px;gap:8px;align-items:center;margin-top:8px;font-size:13px;color:var(--chalk2)}
.num em{font:11px var(--mono);font-style:normal;color:var(--mute)}
input[type=number],input[type=text],textarea{width:100%;font:13px var(--mono);color:var(--chalk);background:var(--bg);border:1px solid var(--line2);border-radius:3px;padding:8px 10px;transition:border-color .2s,box-shadow .2s;min-width:0}
input:focus,textarea:focus{outline:none;border-color:var(--o2);box-shadow:0 0 0 3px rgba(184,105,58,.18)}
textarea{resize:vertical}
.chk{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--chalk2);margin-top:10px}
.chk input{accent-color:var(--o)}
.readout{width:100%;border-collapse:collapse;font-size:13px}
.readout th{text-align:left;font-weight:400;color:var(--mute);padding:6px 0;border-bottom:1px dashed var(--line)}
.readout td{text-align:right;font:500 13px var(--mono);padding:6px 0;border-bottom:1px dashed var(--line);color:var(--chalk)}
.readout--phases th,.readout--phases td{text-align:left}
.readout--phases td:last-child,.readout--phases th:last-child{text-align:right}
.readout--phases thead th{font:500 10.5px var(--mono);text-transform:uppercase;letter-spacing:.08em}
.st-ok{color:var(--ok)!important}.st-bad{color:var(--bad)!important}.st-warn{color:var(--o2)!important}
.kv{font:12.5px var(--mono);color:var(--chalk2);margin:0}
.wps{border:1px solid var(--line2);border-radius:var(--r);padding:10px 14px;background:rgba(29,38,49,.7)}
.wps__h{display:flex;justify-content:space-between;font:500 11px var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--chalk2)}
.wps__l{margin:8px 0;padding-left:18px;font:12px var(--mono);color:var(--chalk2);max-height:110px;overflow:auto}
.plots{display:grid;gap:10px}
.plot{border:1px solid var(--line2);border-radius:var(--r);background:rgba(17,23,31,.6);padding:8px 10px 6px;position:relative}
.plot__k{font:500 11px var(--mono);color:var(--chalk2);text-transform:uppercase;letter-spacing:.06em}
.plot__k em{font-style:normal;color:var(--mute);text-transform:none}
.plot svg{display:block;width:100%;height:96px}
.plot svg .ax{stroke:var(--line2);stroke-width:1;vector-effect:non-scaling-stroke}
.plot svg .zero{stroke:var(--line2);stroke-dasharray:3 4;vector-effect:non-scaling-stroke}
.plot svg .ph{stroke:var(--line);vector-effect:non-scaling-stroke}
.plot svg .cv{fill:none;stroke:var(--chalk);stroke-width:1.6;vector-effect:non-scaling-stroke}
.plot svg .cv--o{stroke:var(--o2)}
.plot svg text{font:9px var(--mono);fill:var(--mute)}
.plotbig{align-self:start;border:1px solid var(--line2);border-radius:var(--r);background:rgba(17,23,31,.65);padding:12px}
.plotbig svg{display:block;width:100%;height:auto}
#pidSvg .ax{stroke:var(--line2)}#pidSvg .gl{stroke:var(--line);stroke-dasharray:2 5}
#pidSvg .sp{fill:none;stroke:var(--chalk2);stroke-dasharray:6 4;stroke-width:1.2}
#pidSvg .y{fill:none;stroke:var(--o2);stroke-width:2}
#pidSvg .u{fill:none;stroke:#7f95a8;stroke-width:1.1;opacity:.8}
#pidSvg .band{fill:rgba(143,174,138,.08);stroke:rgba(143,174,138,.35);stroke-dasharray:3 3}
#pidSvg text{font:10px var(--mono);fill:var(--mute)}
#pidSvg .mk{stroke:var(--chalk);stroke-dasharray:2 3}
#pidSvg .mkt{fill:var(--chalk2)}
.draw-in{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);animation:drawk 1.1s cubic-bezier(.4,.1,.2,1) forwards}
@keyframes drawk{to{stroke-dashoffset:0}}
.legend{display:flex;flex-wrap:wrap;gap:16px;margin-top:8px;font:11.5px var(--mono);color:var(--chalk2)}
.lg::before{content:"";display:inline-block;width:18px;height:0;border-top:2px solid;margin-right:7px;vertical-align:middle}
.lg--sp::before{border-color:var(--chalk2);border-top-style:dashed}.lg--y::before{border-color:var(--o2)}.lg--u::before{border-color:#7f95a8}.lg--b::before{border-color:var(--ok);border-top-style:dotted}

/* ---------- exploded (pinned wow) ---------- */
.explode{position:relative;height:340vh;margin-top:60px}
.explode__pin{position:sticky;top:60px;height:calc(100vh - 60px);max-width:var(--max);margin:0 auto;padding:0 var(--pad);display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center}
.explode__pin>*{min-width:0}
.explode__h{font-size:clamp(30px,3.6vw,52px);font-weight:600;letter-spacing:-.03em;line-height:1.05;margin:0 0 24px}
.explode__steps{list-style:none;margin:0;padding:0;counter-reset:s}
.explode__steps li{counter-increment:s;position:relative;padding:12px 0 12px 44px;border-top:1px dashed var(--line);color:var(--mute);transition:color .4s}
.explode__steps li::before{content:counter(s,upper-alpha);position:absolute;left:0;top:12px;font:500 12px var(--mono);width:26px;height:26px;display:grid;place-items:center;border:1px solid var(--line2);border-radius:2px;transition:border-color .4s,color .4s}
.explode__steps li b{color:var(--chalk2);font-weight:600;transition:color .4s}
.explode__steps li.is-on{color:var(--chalk2)}
.explode__steps li.is-on b{color:var(--chalk)}
.explode__steps li.is-on::before{border-color:var(--o2);color:var(--o2)}
.explode__art svg{width:100%;height:auto;max-height:calc(100vh - 140px)}
.exg{transition:transform .9s cubic-bezier(.2,.8,.2,1),opacity .6s}
.exg .pt{fill:rgba(36,47,60,.9);stroke:var(--chalk);stroke-width:1.4}
.exg .pt--o{fill:none;stroke:var(--o2)}
.exg .pt--line{fill:none}
.exg .cl{fill:none;stroke:var(--mute);stroke-width:1;stroke-dasharray:4 3}
.exg .ct{font:500 11px var(--mono);fill:var(--chalk2);letter-spacing:.06em}
.exg .dim{stroke:var(--o2);stroke-width:1}
.exg .dt{font:600 12px var(--mono);fill:var(--o2)}
.ar{fill:var(--o2)}
.exg .wave{fill:none;stroke:var(--chalk2);stroke-width:1.4}
.exg .wave--o{stroke:var(--o2)}
.exg.is-dim{opacity:.28}
.exg.is-hl .pt{stroke:var(--o2)}

/* ---------- receipt ---------- */
.rc{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:20px}
.rc>*{min-width:0}
.rc__main,.rc__side{border:1px solid var(--line2);border-radius:var(--r);background:rgba(29,38,49,.72);padding:18px}
.field{display:flex;flex-direction:column;gap:6px;font:500 11px var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--chalk2)}
.field input{text-transform:none;letter-spacing:0}
.rc__hash{display:flex;align-items:center;gap:12px;margin:16px 0 10px;padding:10px 12px;border:1px dashed var(--line2);border-radius:3px}
.rc__k{font:600 11px var(--mono);color:var(--o2)}
.rc__hash code{flex:1;font-size:12.5px;color:var(--chalk);min-width:0}
.rc__json{margin:0;max-height:300px;overflow:auto;font:12px/1.55 var(--mono);color:var(--chalk2);background:var(--bg);border:1px solid var(--line);border-radius:3px;padding:12px;white-space:pre-wrap;word-break:break-all}
.rc__json:empty{display:none}
.h3{font-size:18px;margin:0 0 6px}
.rc__side p{font-size:14px;margin:0 0 10px}
.rc__side .btn{margin-top:10px}
.checks{list-style:none;margin:14px 0 0;padding:0;font:12.5px var(--mono)}
.checks li{display:flex;gap:10px;padding:7px 0;border-bottom:1px dashed var(--line);word-break:break-word}
.checks li::before{content:"";flex:0 0 9px;height:9px;margin-top:5px;border:1.5px solid var(--mute);transform:rotate(45deg)}
.checks li.ok::before{border-color:var(--ok);background:var(--ok)}
.checks li.bad::before{border-color:var(--bad);background:var(--bad)}
.err,.ok{margin-top:12px;padding:10px 12px;border-radius:3px;font:13px var(--mono);display:flex;flex-wrap:wrap;gap:10px;align-items:center;word-break:break-word}
.err{border:1px solid rgba(199,112,94,.5);color:#e2a596;background:rgba(199,112,94,.08)}
.ok{border:1px solid rgba(143,174,138,.5);color:#b9d1b5;background:rgba(143,174,138,.08)}
.err button{font:500 12px var(--mono);background:none;border:1px solid currentColor;color:inherit;border-radius:3px;padding:3px 9px;cursor:pointer}
.ok a{color:var(--chalk)}
.sheetx{position:fixed;inset:0;z-index:400;background:rgba(10,14,19,.7);display:grid;place-items:center;padding:16px}
.sheetx__box{width:min(560px,100%);background:var(--bg2);border:1px solid var(--o);border-radius:var(--r);padding:22px;animation:pop .3s cubic-bezier(.2,.8,.2,1)}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98)}}
.sheetx h3{margin:0 0 14px;font-size:19px}
.sheetx__list{list-style:none;margin:0;padding:0}
.sheetx__list li{display:grid;grid-template-columns:140px minmax(0,1fr);gap:12px;padding:8px 0;border-bottom:1px dashed var(--line);font-size:13px}
.sheetx__list span{color:var(--mute)}
.sheetx__list code{font-size:12.5px;word-break:break-all}
.sheetx__warn{font-size:13px;color:var(--o2);margin:14px 0 4px}

/* ---------- log ---------- */
.lookup{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap;margin-bottom:14px}
.field--grow{flex:1;min-width:0}
.logsum{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line2);border-bottom:1px solid var(--line2);margin-bottom:14px}
.logsum div{padding:12px 14px 12px 0;border-right:1px dashed var(--line);min-width:0}
.logsum div+div{padding-left:14px}
.logsum div:last-child{border-right:0}
.logsum span{display:block;font:500 10.5px var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--mute)}
.logsum b{font:500 20px var(--mono);word-break:break-all}
.tablewrap{overflow-x:auto;border:1px solid var(--line2);border-radius:var(--r);background:rgba(29,38,49,.6)}
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th{text-align:left;font:500 10.5px var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--mute);padding:10px 14px;border-bottom:1px solid var(--line2);white-space:nowrap}
.tbl td{padding:9px 14px;border-bottom:1px dashed var(--line);vertical-align:top}
.tbl td code{font-size:12px;word-break:break-all}
.tbl tr.is-sb td{background:rgba(184,105,58,.08)}
.tbl tr.is-sb td:first-child{box-shadow:inset 2px 0 0 var(--o)}
.tbl a{color:var(--o2);font:12px var(--mono)}
.tbl .memo{max-width:440px;word-break:break-word}
.kind{font:500 11px var(--mono);padding:2px 8px;border-radius:2px;border:1px solid;white-space:nowrap}
.kind--m{color:var(--chalk);border-color:var(--line2)}
.kind--s{color:var(--o2);border-color:rgba(184,105,58,.5)}
.kind--l{color:var(--ok);border-color:rgba(143,174,138,.5)}
.kind--c{color:#a9b9c9;border-color:rgba(169,185,201,.4)}
.shim td{height:34px;background:linear-gradient(90deg,rgba(226,221,208,.02),rgba(226,221,208,.08),rgba(226,221,208,.02));background-size:200% 100%;animation:shim 1.3s infinite}

/* ---------- how / spec / faq ---------- */
.how,.spec,.faq{max-width:var(--max);margin:0 auto;padding:clamp(48px,7vw,96px) var(--pad) 0}
.how__l{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line2)}
.how__l li{padding:22px 22px 10px 0;border-right:1px dashed var(--line);min-width:0}
.how__l li+li{padding-left:22px}
.how__l li:last-child{border-right:0}
.how__l svg{width:80px;height:50px;fill:none;stroke:var(--o2);stroke-width:1.6;stroke-linecap:round}
.how__l circle{fill:var(--bg)}
.how__l h3{font-size:19px;margin:12px 0 6px}
.how__l p{margin:0;color:var(--chalk2);font-size:14.5px}
.faq__l{border-top:1px solid var(--line2)}
.faq details{border-bottom:1px dashed var(--line);padding:4px 0}
.faq summary{cursor:pointer;list-style:none;padding:14px 30px 14px 0;font-weight:500;font-size:17px;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:6px;top:22px;width:9px;height:9px;border-right:1.5px solid var(--o2);border-bottom:1.5px solid var(--o2);transform:rotate(45deg);transition:transform .3s}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq details p{margin:0 0 14px;color:var(--chalk2);max-width:52em}
.faq code{font-size:13px;color:var(--o2)}

.ft{margin-top:100px;border-top:1px solid var(--line2);background:rgba(17,23,31,.7)}
.ft__in{max-width:var(--max);margin:0 auto;padding:36px var(--pad) 40px;display:grid;grid-template-columns:1fr 2fr;gap:18px 40px}
.ft__brand p{color:var(--mute);margin:4px 0 0;font-size:14px}
.ft__honest{margin:0;font-size:14px;color:var(--chalk2)}
.ft__honest b{color:var(--chalk)}
.ft__links{display:flex;gap:18px;align-items:center;font:500 13px var(--mono)}
.ft__links a{color:var(--o2)}
.ft__small{font:11px var(--mono);color:var(--mute);margin:0;grid-column:1/-1}
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);z-index:500;background:var(--bg3);border:1px solid var(--o);color:var(--chalk);font:13px var(--mono);padding:10px 16px;border-radius:var(--r);max-width:calc(100vw - 32px)}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .tb__dwg{display:none}
  .bench,.bench--traj,.bench--pid{grid-template-columns:minmax(0,1fr)}
  .clock__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gauge{border-bottom:1px dashed var(--line);padding-left:0!important;padding-right:12px}
  .gauge:nth-child(even){padding-left:14px!important}
  .gauge--wide{grid-column:1/-1}
}
@media (max-width:900px){
  .tb__menu{display:grid;place-items:center}
  .tb__nav{position:fixed;top:60px;left:0;right:0;flex-direction:column;background:var(--bg2);border-bottom:1px solid var(--line2);padding:10px var(--pad) 16px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;margin:0}
  .tb__nav.is-open{opacity:1;transform:none;pointer-events:auto}
  .tb__nav a{padding:12px 4px;border-bottom:1px dashed var(--line);font-size:15px}
  .tb__ind{display:none}
  .tb__right{margin-left:auto}
  .hero{grid-template-columns:minmax(0,1fr);min-height:0}
  .hero__fig{aspect-ratio:1/1}
  .bench__cv{aspect-ratio:1/1}
  .explode{height:auto}
  .explode__pin{position:relative;top:0;height:auto;grid-template-columns:minmax(0,1fr);padding-top:20px}
  .rc{grid-template-columns:minmax(0,1fr)}
  .how__l{grid-template-columns:repeat(2,minmax(0,1fr))}
  .how__l li:nth-child(odd){padding-left:0}
  .how__l li:nth-child(2){border-right:0}
  .ft__in{grid-template-columns:minmax(0,1fr)}
  .logsum{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:560px){
  .tb__in{gap:10px}
  .tb__name{font-size:16px}
  .wb-btn{padding:7px 10px;font-size:12px}
  .hero__dims{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero__dims div:nth-child(2){border-right:0}
  .titleblock{grid-template-columns:repeat(3,auto)}
  .titleblock span:nth-child(1),.titleblock span:nth-child(5){display:none}
  .how__l{grid-template-columns:minmax(0,1fr)}
  .how__l li{padding-left:0!important;border-right:0;border-bottom:1px dashed var(--line)}
  .sheet__h{grid-template-columns:minmax(0,1fr);gap:6px}
  .sheetx__list li{grid-template-columns:minmax(0,1fr);gap:2px}
  .num{grid-template-columns:64px minmax(0,1fr) 48px}
  .tbl th:nth-child(3),.tbl td:nth-child(3){display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .rv,.rv-h,.hero__h .w{opacity:1!important;transform:none!important}
}
section[id]{scroll-margin-top:72px}

/* plain-language pass */
.hero__tech{font:12.5px/1.6 var(--mono);color:var(--mute);max-width:46em;margin:-12px 0 24px;border-left:2px solid var(--line2);padding-left:12px}
.is-in .hero__tech{transition-delay:.62s}
.steps3{max-width:var(--max);margin:0 auto;padding:8px var(--pad) 30px}
.steps3__l{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line2);border-radius:var(--r);background:rgba(29,38,49,.7)}
.steps3__l li{position:relative;padding:22px 22px 20px 70px;border-right:1px dashed var(--line);min-width:0}
.steps3__l li:last-child{border-right:0}
.steps3__n{position:absolute;left:20px;top:20px;width:34px;height:34px;border:1.5px solid var(--o2);border-radius:50%;display:grid;place-items:center;font:600 15px var(--mono);color:var(--o2)}
.steps3__l svg{position:absolute;right:16px;top:16px;width:60px;height:40px;fill:none;stroke:rgba(208,138,92,.55);stroke-width:1.6}
.steps3__l b{display:block;font-size:18px;margin-bottom:4px}
.steps3__l p{margin:0;color:var(--chalk2);font-size:14.5px;max-width:22em}
.steps3__safe{margin:12px 0 0;font:12.5px var(--mono);color:var(--ok)}
.wtd{color:var(--chalk)!important;font-weight:500;margin-bottom:6px!important}
.btn--ex{margin-top:12px;border-color:var(--o2);color:var(--o2)}
.btn--ex:hover{background:rgba(184,105,58,.12)}
abbr[title]{text-decoration:underline dotted var(--o2);text-underline-offset:3px;cursor:help}
.verdict{margin:10px 0 0;font-size:14.5px;color:var(--chalk);border-left:2px solid var(--o2);padding:4px 0 4px 10px}
.verdict:empty{display:none}
.gloss{display:grid;grid-template-columns:200px minmax(0,1fr);gap:6px 16px;margin:0 0 14px;font-size:14.5px}
.gloss dt{font:500 13px var(--mono);color:var(--o2)}
.gloss dd{margin:0;color:var(--chalk2)}
@media (max-width:900px){.steps3__l{grid-template-columns:minmax(0,1fr)}.steps3__l li{border-right:0;border-bottom:1px dashed var(--line)}.gloss{grid-template-columns:minmax(0,1fr)}.gloss dd{margin-bottom:6px}}