/* 3dp calc3 start */
.z3-calc{position:relative}
.z3-calc .z3-hd h2{background:linear-gradient(90deg,#0b1220 0%,#1d6ae5 60%,#0ea5b7 100%);-webkit-background-clip:text;background-clip:text;color:transparent!important;letter-spacing:-.03em}
.z3-calc .z3-step{box-shadow:0 1px 2px rgba(15,23,42,.04),0 12px 32px -18px rgba(15,23,42,.18);transition:box-shadow .25s}
.z3-calc .z3-step:focus-within{box-shadow:0 0 0 1px rgba(47,123,255,.35),0 18px 40px -18px rgba(29,106,229,.35)}
.z3-calc .z3-step h3 em{background:linear-gradient(135deg,#1d6ae5,#0ea5b7);color:#fff}
.z3-calc .z3-svc{position:relative;transition:transform .2s,box-shadow .2s,border-color .2s,background .2s}
.z3-calc .z3-svc:hover{transform:translateY(-2px);box-shadow:0 14px 30px -18px rgba(29,106,229,.55)}
.z3-calc .z3-svc.on{background:linear-gradient(180deg,rgba(47,123,255,.10),rgba(47,123,255,.04))}
.z3-calc .z3-svc.on::after{content:"";position:absolute;top:14px;right:14px;width:22px;height:22px;border-radius:50%;background:#1d6ae5 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/14px no-repeat}
.z3-calc .z3-svc.on i{background:#1d6ae5;color:#fff}
.z3-calc .z3-sum{border:1px solid rgba(29,106,229,.28);box-shadow:0 24px 60px -30px rgba(29,106,229,.45);background:linear-gradient(180deg,#fff,#f6f9fe)}
.z3-calc .z3-big b{font-variant-numeric:tabular-nums}
/* buy box */
.z3-calc .z3-buy{display:flex;flex-direction:column;gap:10px;padding:16px;border-radius:18px;background:#0b1220;color:#e7edf7;box-shadow:0 18px 40px -22px rgba(11,18,32,.8)}
.z3-calc .z3-bp{display:grid;grid-template-columns:1fr auto;align-items:end;gap:2px 12px}
.z3-calc .z3-bp span{font:600 12px Inter,sans-serif;letter-spacing:.1em;text-transform:uppercase;color:#93a4bd}
.z3-calc .z3-bp b{grid-row:1/3;grid-column:2;font:700 34px/1 "Plus Jakarta Sans",Inter,sans-serif;color:#fff;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.z3-calc .z3-bp small{font-size:12px;line-height:1.45;color:#a9b6c9}
.z3-calc .z3-zn{display:flex;flex-direction:column;gap:6px;margin:4px 0 0}
.z3-calc .z3-zn span{font:500 12.5px Inter,sans-serif;color:#a9b6c9}
.z3-calc .z3-zn textarea{width:100%;box-sizing:border-box;min-height:46px;resize:vertical;border-radius:12px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);color:#fff;padding:10px 12px;font:500 14px/1.45 Inter,sans-serif}
.z3-calc .z3-zn textarea::placeholder{color:#7f8da3}
.z3-calc .z3-zn textarea:focus{outline:none;border-color:#5b9bff;box-shadow:0 0 0 3px rgba(91,155,255,.25)}
.z3-calc .z3-buy .z3-btn{width:100%;justify-content:center;height:54px;font-size:16px;border-radius:14px;cursor:pointer;border:0}
.z3-calc .z3-buy .z3-btn.p{background:linear-gradient(135deg,#2f7bff,#1d6ae5 55%,#0ea5b7);color:#fff!important;box-shadow:0 10px 26px -10px rgba(47,123,255,.8)}
.z3-calc .z3-buy .z3-btn.s{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);color:#fff!important}
.z3-calc .z3-buy .z3-btn.s:hover{background:rgba(255,255,255,.14)}
.z3-calc .z3-buy .z3-btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.z3-calc .z3-buy.busy .z3-btn{cursor:progress}
.z3-calc .z3-buy.q .z3-bp b{font-size:26px;color:#93a4bd}
.z3-calc .z3-msg{font:500 13.5px/1.5 Inter,sans-serif;padding:10px 12px;border-radius:12px}
.z3-calc .z3-msg.ok{background:rgba(34,160,107,.16);color:#bff0d8}
.z3-calc .z3-msg.bad{background:rgba(226,103,79,.18);color:#ffd2c8}
.z3-calc .z3-msg a{color:#fff!important;font-weight:600;text-decoration:underline!important;margin-left:6px;white-space:nowrap}
.z3-calc .z3-crd{font-size:11.5px;line-height:1.5;color:#8b9ab0}
.z3-calc a.z3-form-go{display:block;text-align:center;font:600 14px Inter,sans-serif;color:#1d6ae5!important;padding:6px 0}
.z3-calc .z3-buy.q~a.z3-form-go{background:#1d6ae5;color:#fff!important;border-radius:12px;padding:14px}
.z3-calc .z3-mbar{display:none}
@media (max-width:900px){
 .z3-calc .z3-mbar{display:flex;align-items:center;gap:12px;position:fixed;left:10px;right:10px;bottom:10px;z-index:900;padding:10px 10px 10px 16px;border-radius:16px;background:rgba(11,18,32,.96);color:#fff;box-shadow:0 16px 40px -10px rgba(11,18,32,.6);transition:transform .25s,opacity .25s}
 .z3-calc .z3-mbar div{flex:1;min-width:0}
 .z3-calc .z3-mbar small{display:block;font-size:11px;color:#a9b6c9;text-transform:uppercase;letter-spacing:.08em}
 .z3-calc .z3-mbar b{font:700 22px/1.1 "Plus Jakarta Sans",Inter,sans-serif;font-variant-numeric:tabular-nums}
 .z3-calc .z3-mbar .z3-btn{height:46px;padding:0 18px;font-size:15px;border:0;background:linear-gradient(135deg,#2f7bff,#1d6ae5);color:#fff!important;border-radius:12px}
 .z3-calc .z3-mbar.off1,.z3-calc .z3-mbar.off2{transform:translateY(130%);opacity:0;pointer-events:none}
}
@media (max-width:900px){body:has(.z3-mbar:not(.off1):not(.off2)) .scroll-top{bottom:86px!important}}
/* 3dp calc3 end */
/* 3dp calc4 start */
.z3-calc .z3-pvc.z3-3d{display:block;padding:0;min-height:0;height:440px;position:relative;background:radial-gradient(120% 90% at 50% 10%,#ffffff 0%,#eef3f9 55%,#dde5ef 100%)}
.z3-calc .z3-pvc.z3-3d canvas{width:100%!important;height:100%!important;display:block;cursor:grab;touch-action:none;outline:none}
.z3-calc .z3-pvc.z3-3d canvas:active{cursor:grabbing}
.z3-calc .z3-3dui{position:absolute;top:10px;right:10px;display:flex;gap:6px;z-index:2}
.z3-calc .z3-3dui button{width:34px;height:34px;border-radius:10px;border:1px solid rgba(15,23,42,.12);background:rgba(255,255,255,.85);backdrop-filter:blur(6px);font:600 16px/1 Inter,sans-serif;color:#334155;cursor:pointer;transition:.15s}
.z3-calc .z3-3dui button:hover{border-color:#1d6ae5;color:#0b1220}
.z3-calc .z3-3dui button.on{background:#1d6ae5;color:#fff;border-color:#1d6ae5}
.z3-calc .z3-3dlab{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:1}
.z3-calc .z3-3dlab span{position:absolute;left:0;top:0;white-space:nowrap;font:600 12.5px/1 Inter,sans-serif;color:#0b1220;background:rgba(255,255,255,.88);border:1px solid rgba(15,23,42,.12);padding:4px 7px;border-radius:7px;box-shadow:0 2px 8px rgba(15,23,42,.08)}
.z3-calc .z3-3dlab span.b{font-weight:500;font-size:11.5px;color:#475569;background:rgba(255,255,255,.7)}
.z3-calc .z3-3dlab span.m{background:#0b1220;color:#fff;border-color:#0b1220}
.z3-calc .z3-3dload{display:grid;place-items:center;align-content:center;gap:10px;height:100%;min-height:320px;color:#5b6676;font:500 13px Inter,sans-serif}
.z3-calc .z3-3dload i{width:30px;height:30px;border-radius:50%;border:3px solid rgba(15,23,42,.12);border-top-color:#1d6ae5;animation:z3spin 1s linear infinite}
@keyframes z3spin{to{transform:rotate(360deg)}}
.z3-calc .z3-pvc.z3-3d .z3-pvhint{transition:opacity .4s}
/* options */
.z3-calc details.z3-more{border:1px dashed rgba(15,23,42,.16);border-radius:14px;padding:4px 14px;margin:6px 0 12px;background:rgba(255,255,255,.6)}
.z3-calc details.z3-more>summary{cursor:pointer;list-style:none;font:600 14px Inter,sans-serif;color:#1d6ae5;padding:10px 0}
.z3-calc details.z3-more>summary::-webkit-details-marker{display:none}
.z3-calc details.z3-more>summary::before{content:"+";display:inline-grid;place-items:center;width:20px;height:20px;margin-right:8px;border-radius:6px;background:rgba(29,106,229,.1);transition:transform .2s}
.z3-calc details.z3-more[open]>summary::before{content:"–"}
.z3-calc details.z3-more>div{padding:4px 0 10px}
.z3-calc [data-if][hidden]{display:none!important}
/* map v8 */
.z3-calc .z3-mapbox{background:linear-gradient(180deg,#f7fbff,#eef4fb)}
.z3-calc .z3map.z3eu .z3land path.z3c{stroke:#fff;stroke-width:.7}
.z3-calc .z3map .z3land path.z3c:not(.z3k){fill:#e6ebf1!important;fill-opacity:1}
.z3-calc .z3map.z3globe{cursor:grab;touch-action:none}
.z3-calc .z3map.z3globe:active{cursor:grabbing}
.z3-calc .z3map.z3globe .z3grat{stroke:rgba(29,79,145,.12);stroke-width:.5}
.z3-calc .z3map.z3globe .z3glob{stroke:rgba(29,79,145,.25);stroke-width:1}
.z3-calc .z3map.z3globe .z3land path.z3c{stroke:rgba(255,255,255,.85);stroke-width:.5}
.z3-calc .z3map .z3parcel rect{fill:#c8975a;stroke:#6b4423;stroke-width:1.2}
.z3-calc .z3map .z3parcel path{stroke:#6b4423;stroke-width:1.2;fill:none}
.z3-calc .z3map .z3arc{stroke-width:2.8}
.z3-calc .z3-mhint{position:absolute;right:12px;bottom:10px;font:500 12px Inter,sans-serif;color:#5b6676;background:rgba(255,255,255,.8);padding:4px 8px;border-radius:8px;pointer-events:none}
@media (max-width:640px){.z3-calc .z3-pvc.z3-3d{height:340px}.z3-calc .z3-3dlab span{font-size:11px;padding:3px 5px}}
/* colour swatches */
.z3-calc .z3-sw8{display:flex;flex-wrap:wrap;gap:8px}
.z3-calc .z3-sw8 label{position:relative;cursor:pointer;margin:0}
.z3-calc .z3-sw8 input{position:absolute;opacity:0;pointer-events:none}
.z3-calc .z3-sw8 i{display:block;width:34px;height:34px;border-radius:50%;border:2px solid rgba(15,23,42,.15);box-shadow:inset 0 -3px 6px rgba(0,0,0,.18);transition:transform .15s}
.z3-calc .z3-sw8 span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.z3-calc .z3-sw8 label:hover i{transform:scale(1.08)}
.z3-calc .z3-sw8 input:checked+i{border-color:#0b1220;box-shadow:0 0 0 3px #fff,0 0 0 5px #1d6ae5}
.z3-calc .z3-sw8 input:focus-visible+i{outline:2px solid #1d6ae5;outline-offset:3px}
.z3-calc .z3-cols>.z3-f>span em,.z3-calc .z3-cols .z3-f>span em{font-style:normal;display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:#0b1220;color:#fff;font:700 11px Inter,sans-serif;margin-left:4px}
.z3-calc .z3-paintH{font:500 13px/1.5 Inter,sans-serif;color:#1d6ae5;background:rgba(29,106,229,.07);border-radius:10px;padding:8px 12px;margin:0 0 12px}
/* paint toolbar in 3D */
.z3-calc .z3-paint{position:absolute;left:10px;top:10px;z-index:2;display:flex;flex-direction:column;gap:6px;padding:10px;border-radius:14px;background:rgba(255,255,255,.92);border:1px solid rgba(15,23,42,.12);backdrop-filter:blur(8px);max-width:210px;box-shadow:0 8px 24px -12px rgba(15,23,42,.35)}
.z3-calc .z3-paint[hidden]{display:none}
.z3-calc .z3-paint b{font:700 12px Inter,sans-serif;color:#0b1220;text-transform:uppercase;letter-spacing:.06em}
.z3-calc .z3-paint .pc,.z3-calc .z3-paint .ps,.z3-calc .z3-paint .pa{display:flex;gap:6px;flex-wrap:wrap}
.z3-calc .z3-paint .pc button{width:30px;height:30px;border-radius:50%;border:2px solid rgba(15,23,42,.2);cursor:pointer}
.z3-calc .z3-paint .pc button.on{box-shadow:0 0 0 3px #fff,0 0 0 5px #1d6ae5}
.z3-calc .z3-paint .ps button,.z3-calc .z3-paint .pa button{height:28px;min-width:28px;padding:0 8px;border-radius:8px;border:1px solid rgba(15,23,42,.15);background:#fff;font:600 12px Inter,sans-serif;color:#334155;cursor:pointer}
.z3-calc .z3-paint .ps button.on,.z3-calc .z3-paint .pa button.on{background:#1d6ae5;color:#fff;border-color:#1d6ae5}
.z3-calc .z3-paint small{font:500 11.5px/1.4 Inter,sans-serif;color:#5b6676}
@media (max-width:640px){.z3-calc .z3-paint{max-width:160px;padding:8px}.z3-calc .z3-paint .pc button{width:26px;height:26px}}
/* 3dp calc4 end */
/* 3dp calc9: weight panel + polish (2026-10) */
.z3-calc .z3-cpn{margin:12px 0 4px}
.z3-calc .z3-cpn label{display:flex;flex-direction:column;gap:6px;margin:0}
.z3-calc .z3-cpn label>span:first-child{font:600 12px Inter,sans-serif;letter-spacing:.06em;text-transform:uppercase;color:#64748b}
.z3-calc .z3-cpi{display:flex;gap:8px}
.z3-calc .z3-cpi input{flex:1;min-width:0;height:42px;box-sizing:border-box;border:1px solid #d5dde8;border-radius:12px;padding:0 12px;font:500 15px Inter,sans-serif;color:#0b1220;background:#fff}
.z3-calc .z3-cpi input::placeholder{color:#94a3b8}
.z3-calc .z3-cpi input:focus{outline:none;border-color:#1d6ae5;box-shadow:0 0 0 3px rgba(29,106,229,.18)}
.z3-calc .z3-cpb{flex:none;height:42px;padding:0 16px;border:1px solid #1d6ae5;border-radius:12px;background:#fff;color:#1d6ae5;font:600 14px Inter,sans-serif;cursor:pointer}
.z3-calc .z3-cpb:hover{background:#1d6ae5;color:#fff}
.z3-calc .z3-cpm{display:block;margin-top:6px;font-size:12.5px;line-height:1.4}
.z3-calc .z3-cpm:empty{display:none}
.z3-calc .z3-cpm.ok{color:#15803d}
.z3-calc .z3-cpm.bad{color:#b91c1c}
.z3-calc .z3-crd a{color:inherit;text-decoration:underline}
.z3-calc .z3-form-go[hidden]{display:none!important}
.z3-calc .z3-big b,.z3-calc .z3-rows b,.z3-calc .z3-bp b,.z3-calc .z3-mbv{white-space:nowrap}
.z3-calc .z3-rows>div{transition:background .2s}
.z3-calc .z3-rows>div:hover{background:rgba(29,106,229,.04)}
.z3-calc .z3-tools{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 4px}
.z3-calc .z3-tb{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 14px;border-radius:999px;border:1px solid rgba(15,23,42,.16);background:#fff;color:#0b1220;font:600 13.5px Inter,sans-serif;cursor:pointer}
.z3-calc .z3-tb svg{width:16px;height:16px}
.z3-calc .z3-tb:hover{border-color:#1d6ae5;color:#1d6ae5}
.z3-calc .z3-dsg,.z3-calc .z3-find{margin:10px 0 16px;padding:16px;border:1px solid #dbe3ee;border-radius:16px;background:#f8fafc}
.z3-calc .z3-dsg[hidden],.z3-calc .z3-find[hidden]{display:none}
.z3-calc .z3-dg{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:16px}
@media (max-width:760px){.z3-calc .z3-dg{grid-template-columns:1fr}}
.z3-calc .z3-dgc label{display:flex;flex-direction:column;gap:4px;margin:0 0 8px;font:500 12.5px Inter,sans-serif;color:#475569}
.z3-calc .z3-dgc input,.z3-calc .z3-dgc select{height:38px;border:1px solid #d5dde8;border-radius:10px;padding:0 10px;font:500 14px Inter,sans-serif;background:#fff;color:#0b1220;box-sizing:border-box;width:100%}
.z3-calc .z3-dg2{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:8px}
.z3-calc .z3-dg2 label[hidden]{display:none}
.z3-calc .z3-dgh{margin:10px 0 6px;font:700 12px Inter,sans-serif;letter-spacing:.06em;text-transform:uppercase;color:#64748b}
.z3-calc .z3-dgr{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:6px}
.z3-calc .z3-dgr>input[type=text]{flex:1 1 140px;width:auto}
.z3-calc .z3-dgr select{flex:0 0 auto;width:auto}
.z3-calc .z3-dgs{flex-direction:row!important;align-items:center;margin:0!important}
.z3-calc .z3-dgs input{width:72px!important}
.z3-calc .z3-dgs small{font-size:11.5px;color:#64748b;max-width:90px;line-height:1.2}
.z3-calc .z3-dgr button{width:32px;height:32px;border-radius:8px;border:1px solid #e2e8f0;background:#fff;color:#b91c1c;font:700 16px/1 Inter,sans-serif;cursor:pointer}
.z3-calc .z3-dga{height:32px;padding:0 12px;border-radius:999px;border:1px dashed #94a3b8;background:none;color:#1d6ae5;font:600 13px Inter,sans-serif;cursor:pointer}
.z3-calc .z3-dgp{display:flex;flex-direction:column;gap:6px}
.z3-calc .z3-dgv{width:100%;height:280px;background:#fff;border:1px solid #e2e8f0;border-radius:12px;touch-action:none}
.z3-calc .z3-dgv .o{fill:#e9d3ae;stroke:#b08850;stroke-width:.4;vector-effect:non-scaling-stroke}
.z3-calc .z3-dgv .a{fill:#f1f5f9;stroke:#94a3b8;stroke-dasharray:3 3;vector-effect:non-scaling-stroke}
.z3-calc .z3-dgv .h{fill:#fff;stroke:#b91c1c;stroke-width:1;vector-effect:non-scaling-stroke;cursor:move}
.z3-calc .z3-dgv .t{fill:#3b2a17;cursor:move;user-select:none}
.z3-calc .z3-dgv .t.c{fill:#fff;stroke:#b91c1c;stroke-width:1;vector-effect:non-scaling-stroke}
.z3-calc .z3-dgp small{font-size:12px;color:#64748b}
.z3-calc .z3-dgb{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.z3-calc .z3-dgb .z3-btn{height:44px}
.z3-calc .z3-dgn{display:block;margin-top:8px;font-size:12.5px;color:#15803d}
.z3-calc .z3-dgn:empty{display:none}
.z3-calc .z3-fd{display:flex;gap:8px}
.z3-calc .z3-fd input{flex:1;min-width:0;height:44px;border:1px solid #d5dde8;border-radius:12px;padding:0 12px;font:500 15px Inter,sans-serif;background:#fff;color:#0b1220}
.z3-calc .z3-fd .z3-btn{height:44px}
.z3-calc .z3-fl{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.z3-calc .z3-fl button{display:flex;flex-direction:column;align-items:flex-start;gap:1px;padding:8px 14px;border-radius:12px;border:1px solid #d5dde8;background:#fff;color:#0b1220;cursor:pointer;text-align:left}
.z3-calc .z3-fl button b{font:700 14px Inter,sans-serif}
.z3-calc .z3-fl button small{font-size:11.5px;color:#64748b}
.z3-calc .z3-fl button:hover{border-color:#1d6ae5}
.z3-calc .z3-fn{display:block;font-size:12.5px;line-height:1.5;color:#64748b}
/* 3dp: theme forces input[type=file]{display:block}; keep the hidden native input hidden */
.z3-drop input[type=file][hidden]{display:none!important}
.z3-fsteps{display:flex;gap:8px;margin:0 0 12px;padding:0;list-style:none}
.z3-fsteps li{flex:1;display:flex;align-items:center;gap:8px;margin:0;padding:8px 10px;border:1px solid #e2e8f0;border-radius:12px;background:#fff;font:600 13px/1.3 Inter,sans-serif;color:#0b1220}
.z3-fsteps li b{flex:none;display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:#1d6ae5;color:#fff;font:700 12px Inter,sans-serif}
.z3-fm{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:0 0 8px;font:500 13px/1.4 Inter,sans-serif;color:#334155}
.z3-ftag{padding:2px 9px;border-radius:999px;background:#e8f0fd;color:#1d4fb8;font:700 12px Inter,sans-serif}
.z3-fx{color:#64748b}.z3-fx a{color:#1d6ae5;font-weight:600}
@media (max-width:560px){.z3-fsteps{flex-direction:column;gap:6px}}
/* ---- 3dp calc 10: grouped steps, bigger map, carriers by weight, effects ---- */
.z3-calc .z3-step.rv{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s cubic-bezier(.2,.7,.2,1),box-shadow .25s}
.z3-calc .z3-step.rv.in{opacity:1;transform:none}
.z3-calc .z3-step h3 em{box-shadow:0 0 0 4px rgba(29,106,229,.12)}
.z3-calc .z3-mapwrap{grid-template-columns:1fr!important;gap:16px}
.z3-calc .z3-mapbox{min-height:360px;border-radius:18px;box-shadow:inset 0 0 0 1px rgba(15,23,42,.06),0 18px 40px -26px rgba(15,23,42,.35)}
.z3-calc .z3-mapbox svg.z3map{max-height:620px!important;min-height:360px}
.z3-calc .z3-car{display:block}
.z3-calc .z3-crs{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.z3-calc .z3-cr{transition:border-color .15s,transform .18s,box-shadow .18s}
.z3-calc .z3-cr:hover{transform:translateY(-2px);box-shadow:0 10px 22px -16px rgba(15,23,42,.45)}
.z3-calc .z3-legend{display:grid!important;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:8px}
.z3-calc .z3-lz{border:1px solid var(--z3bd,#e3e7ec);border-radius:12px;padding:8px 10px;background:#fff;transition:transform .15s,border-color .15s}
.z3-calc .z3-lz:hover{transform:translateY(-1px);border-color:#94a3b8}
.z3-calc .z3-lmsg{padding:10px 12px;border-radius:12px;background:#fff7e6;border:1px solid #f3d38a;color:#5c4100}
.z3-calc .z3-wtb{display:block;margin-top:12px;padding:12px;border:1px dashed var(--z3bd,#d6dbe1);border-radius:14px;background:linear-gradient(180deg,#fff,#f7f9fb)}
.z3-calc .z3-wtb>p{margin:0 0 8px;font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:#475569}
.z3-calc .z3-wtl{display:flex;gap:6px}
.z3-calc .z3-wtl span{position:relative;flex:1;display:flex;flex-direction:column;gap:2px;padding:8px 10px 12px;border-radius:10px;background:#eef2f6;color:#334155;overflow:hidden;transition:background .25s,color .25s}
.z3-calc .z3-wtl span b{font-size:12.5px}.z3-calc .z3-wtl span em{font-style:normal;font-size:13px;font-weight:700}
.z3-calc .z3-wtl span.on{background:#1d6ae5;color:#fff}
.z3-calc .z3-wtl span i{position:absolute;bottom:4px;width:8px;height:8px;margin-left:-4px;border-radius:50%;background:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.35);animation:z3pin 1.6s ease-in-out infinite}
.z3-calc .z3-wtb small{display:block;margin-top:6px;color:#64748b;font-size:12px}
@keyframes z3pin{50%{box-shadow:0 0 0 6px rgba(255,255,255,.12)}}
.z3-calc .z3-tt.pulse,.z3-calc .z3-bpv.pulse{animation:z3pulse .5s ease}
@keyframes z3pulse{0%{transform:scale(1)}40%{transform:scale(1.06);text-shadow:0 0 18px rgba(29,106,229,.45)}100%{transform:scale(1)}}
.z3-calc .z3-tt{display:inline-block;transform-origin:right center}
/* layer preview (slicer) */
.z3-calc .z3-slc{position:absolute;left:12px;right:12px;bottom:12px;z-index:3;display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:12px;background:rgba(255,255,255,.9);backdrop-filter:blur(6px);box-shadow:0 8px 20px -14px rgba(15,23,42,.5);font:500 12.5px Inter,sans-serif;color:#1e293b}
.z3-calc .z3-slc input{flex:1;accent-color:#1d6ae5}
.z3-calc .z3-slc b{white-space:nowrap;min-width:130px;text-align:right}
.z3-calc .z3-slc[hidden]{display:none}
.z3-calc .z3-slch{display:block;margin-top:6px;color:#64748b;font-size:12px}
@media (prefers-reduced-motion:reduce){.z3-calc .z3-step.rv{opacity:1;transform:none;transition:none}.z3-calc .z3-tt.pulse{animation:none}.z3-calc .z3-wtl span i{animation:none}}
/* ---- hero with logo and live workshop clips ---- */
.z3-calc .z3-hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:28px;align-items:center;margin:0 0 26px}
.z3-calc .z3-hero .z3-hd{margin:0}
.z3-calc .z3-logo{height:26px;width:auto;margin-right:10px;vertical-align:middle}
.z3-calc .z3-trust{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:8px}
.z3-calc .z3-trust li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:#334155}
.z3-calc .z3-trust svg{width:20px;height:20px;flex:none;padding:3px;border-radius:50%;background:#e8f2ec;fill:none;stroke:#2f4b3c;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.z3-calc .z3-heroviz{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.z3-calc .z3-heroviz figure{position:relative;margin:0;aspect-ratio:4/3;border-radius:16px;overflow:hidden;background:linear-gradient(135deg,#1d2a24,#0f1a14);box-shadow:0 14px 30px -18px rgba(15,23,42,.55);transform:translateZ(0);transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.z3-calc .z3-heroviz figure:nth-child(2){transform:translateY(14px)}.z3-calc .z3-heroviz figure:nth-child(4){transform:translateY(14px)}
.z3-calc .z3-heroviz figure:hover{transform:translateY(-3px) scale(1.02)}
.z3-calc .z3-heroviz video{width:100%;height:100%;object-fit:cover;display:block}
.z3-calc .z3-heroviz figcaption{position:absolute;left:8px;bottom:8px;padding:4px 9px;border-radius:999px;background:rgba(10,15,12,.62);backdrop-filter:blur(4px);color:#fff;font:600 12px Inter,sans-serif}
.z3-calc .z3-heroviz figure.noimg video{display:none}
@media (max-width:860px){.z3-calc .z3-hero{grid-template-columns:1fr}.z3-calc .z3-heroviz figure:nth-child(n){transform:none}}
/* automatic file check (1.15) */
.z3-calc .z3-fcheck{margin:10px 0 4px;padding:12px 14px;border:1px solid var(--z3bd,#e3dbcf);border-radius:12px;background:rgba(255,255,255,.6);font-size:13.5px;line-height:1.45}
.z3-calc .z3-fcheck ul{list-style:none;margin:6px 0 0;padding:0}
.z3-calc .z3-fcheck li{position:relative;padding:3px 0 3px 22px}
.z3-calc .z3-fcheck li:before{position:absolute;left:0;top:3px;font-weight:700}
.z3-calc .z3-fcheck li.ok:before{content:"✓";color:#2f7d4f}
.z3-calc .z3-fcheck li.warn:before{content:"!";color:#b45309}
.z3-calc .z3-fcheck li.bad:before{content:"✕";color:#b42318}
.z3-calc .z3-fcheck li.warn{color:#7c4a03}.z3-calc .z3-fcheck li.bad{color:#912018}
.z3-calc .z3-fc-sup{margin-left:6px;padding:3px 10px;border-radius:999px;border:1px solid currentColor;background:transparent;color:inherit;font:inherit;font-size:12.5px;cursor:pointer}
.z3-calc .z3-fc-ok{margin-left:6px;color:#2f7d4f;font-weight:600}
.z3-calc .z3-fc-note,.z3-calc .z3-fc-run{margin:6px 0 0;color:#6b6257;font-size:12px}
html[data-theme="dark"] .z3-calc .z3-fcheck{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.12)}
html[data-theme="dark"] .z3-calc .z3-fcheck li.warn{color:#f5c27a}html[data-theme="dark"] .z3-calc .z3-fcheck li.bad{color:#f19a91}
html[data-theme="dark"] .z3-calc .z3-fc-note,html[data-theme="dark"] .z3-calc .z3-fc-run{color:#a8a29e}