.etu-grid{display:grid;grid-template-columns:minmax(300px,400px) 1fr;gap:18px;align-items:start;margin-top:8px}
.etu-form h3,.etu-out h3{font-size:15px;letter-spacing:.06em;text-transform:uppercase;color:var(--light,#F39C1B);margin:4px 0 10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.etu-form .biz-form>div{margin-bottom:10px}.etu-2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.etu-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.etu-form label{font-size:12px}.etu-info{font-size:13px;color:var(--muted);margin:2px 0 8px;line-height:1.45}.etu-info b{color:var(--txt)}.etu-warn{color:#ffb347!important;font-weight:600}
.etu-imp{display:block;border:1px dashed var(--line);border-radius:10px;padding:9px 12px;font-size:13px;cursor:pointer;margin-bottom:14px;text-align:center}.etu-imp:hover{border-color:var(--light)}.etu-imp input{position:absolute;width:1px;height:1px;opacity:0}
.etu-btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}.etu-btns .btn{width:100%;justify-content:center}
.etu-out{display:grid;gap:18px;min-width:0}.etu-out .panelbox{min-width:0}.etu-2c{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.etu-tab{width:100%;border-collapse:collapse;font-size:14px;margin-bottom:10px}.etu-tab th{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);text-align:left;padding:6px 8px;border-bottom:1px solid var(--line)}
.etu-tab td{padding:8px;border-bottom:1px solid var(--line-soft)}.etu-tab td:nth-child(n+2){white-space:nowrap}.etu-tab .etu-sub td{color:var(--muted);font-size:13px}
.etu-y{color:#3FD07A;font-weight:700;font-size:17px}.etu-n{color:#ff5a5a;font-weight:700;font-size:17px}
.etu-badge{font-size:12px;letter-spacing:.04em;text-transform:none;padding:3px 10px;border-radius:20px}.etu-badge.ok{background:rgba(63,208,122,.16);color:#3FD07A}.etu-badge.ko{background:rgba(255,90,90,.16);color:#ff6b6b}
.etu-pm{font-size:13px;color:var(--muted);margin:0 0 8px}.etu-pm b{color:var(--txt)}.etu-msg{font-size:13.5px;color:#52e39a;font-weight:600;margin:0 0 10px;min-height:1px}
.etu-out canvas{width:100%;height:auto;display:block;border-radius:10px}.etu-leg{font-size:12px;color:var(--muted);margin-top:6px}
html[data-theme=light] .etu-out canvas{filter:none}
@media(max-width:980px){.etu-grid{grid-template-columns:1fr}.etu-2c{grid-template-columns:1fr}}
@media(max-width:420px){.etu-3{grid-template-columns:1fr 1fr}.etu-tab{font-size:13px}.etu-tab td{padding:6px 4px}}
.etu-z{margin-bottom:14px}.etu-z h4{font-size:14px;margin:0 0 6px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.etu-pm{line-height:1.7}
.etu-cat{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;max-height:330px;overflow:auto;padding:2px 2px 6px;margin:2px 0 12px}
.etu-card{all:unset;box-sizing:border-box;cursor:pointer;display:flex;flex-direction:column;align-items:center;text-align:center;gap:2px;padding:7px 5px 8px;border:1px solid var(--line);border-radius:10px;background:var(--panel-solid,transparent);transition:border-color .15s,transform .15s}
.etu-card:hover{border-color:var(--light);transform:translateY(-1px)}.etu-card.on{border-color:var(--light);box-shadow:0 0 0 2px rgba(243,156,27,.35)}
.etu-card img{width:100%;height:64px;object-fit:contain;margin-bottom:3px}.etu-card b{font-size:12px;line-height:1.2}.etu-card small{font-size:10.5px;color:var(--muted);line-height:1.2}
.etu-card i{font-style:normal;font-size:10px;color:#3FD07A;margin-top:2px}.etu-card.nop i{color:var(--muted)}.etu-card.nop img{opacity:.6}
.etu-3rd{border-style:dashed}.etu-up{width:100%;height:64px;display:grid;place-items:center;color:var(--light)}.etu-up svg{width:34px;height:34px}.etu-3rd i{color:var(--light)}
.etu-3p{border:1px solid var(--line);border-radius:10px;padding:10px;margin-bottom:12px}.etu-ph img{display:none;max-width:100%;max-height:140px;margin:0 auto 6px}
.etu-chk{font-size:12.5px;line-height:1.45;margin:-2px 0 12px;display:flex;flex-direction:column;gap:2px}.etu-chk b{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.etu-chk .w{color:#ffb347}.etu-chk .o{color:#3FD07A}.etu-chk .i{color:var(--muted)}
html[data-theme=light] .etu-chk .w,body.day .etu-chk .w{color:#a55800}
@media(max-width:420px){.etu-cat{grid-template-columns:repeat(2,1fr)}}
.etu-lk{display:flex;flex-wrap:wrap;gap:6px 12px;font-size:12.5px;color:var(--muted);margin:4px 0 10px;align-items:center}.etu-lk label{display:inline-flex;gap:5px;align-items:center;font-size:12.5px;text-transform:none;letter-spacing:0;margin:0;cursor:pointer}.etu-lk input{width:auto;margin:0}
.etu-fix{margin:4px 0 10px}.etu-fix p{color:#ff6b6b;font-weight:600;font-size:13.5px;margin:0 0 8px}.etu-bar{height:6px;border-radius:4px;background:rgba(128,128,128,.25);overflow:hidden}.etu-bar i{display:block;height:100%;background:var(--light);transition:width .2s}
.etu-undo{all:unset;cursor:pointer;margin-left:8px;font-size:12px;text-decoration:underline;color:var(--muted)}.etu-err{color:#ff6b6b}
.etu-auto{display:flex!important;gap:7px;align-items:center;font-size:13px!important;text-transform:none!important;letter-spacing:0!important;margin:0 0 10px!important;cursor:pointer;color:var(--txt)}.etu-auto input{width:auto;margin:0}
.etu-tab td.etu-obj{color:#e8890a;font-weight:600}
.etu-rs{max-width:320px;margin:4px 0 10px}.etu-rs label{font-size:11.5px}
.etu-3btn{all:unset;box-sizing:border-box;cursor:pointer;display:flex;align-items:center;gap:12px;width:100%;padding:11px 14px;margin:0 0 12px;border:1.5px dashed var(--light);border-radius:12px;background:rgba(243,156,27,.08);color:var(--txt);transition:background .15s}
.etu-3btn:hover{background:rgba(243,156,27,.16)}.etu-3btn.on{border-style:solid;box-shadow:0 0 0 2px rgba(243,156,27,.35)}
.etu-3btn svg{width:26px;height:26px;color:var(--light);flex:none}.etu-3btn span{display:flex;flex-direction:column;line-height:1.3}.etu-3btn b{font-size:14px}.etu-3btn small{font-size:12px;color:var(--muted)}
#etu [hidden]{display:none!important}
.etu-card.etu-gen .etu-up{height:64px}
.etu-share{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}.etu-share .btn{display:inline-flex;align-items:center;gap:8px;flex:1 1 150px;justify-content:center}.etu-share svg{width:20px;height:20px;flex:none}
.etu-share .etu-wa{border-color:rgba(37,211,102,.6);color:#1fa855}.etu-share .etu-wa:hover{background:rgba(37,211,102,.1)}.etu-share .etu-em{border-color:rgba(76,126,243,.55);color:#3d6fe0}.etu-share .etu-em:hover{background:rgba(76,126,243,.1)}
#etu-shn{margin-top:8px;color:#e8890a}
#etu .etu-aim{margin-top:10px;border:1px solid rgba(243,156,27,.35);border-radius:8px;padding:8px 10px}
#etu .etu-aim summary{cursor:pointer;font-weight:600;color:#F39C1B}
#etu .etu-scr{overflow-x:auto;max-height:420px;overflow-y:auto}
#etu .etu-scr table{min-width:520px}
#etu input:disabled{opacity:.55}
/* ---------- colonne verticale « Votre rapport » (PDF · WhatsApp · e-mail) ---------- */
#etu .etu-act-in{border:1px solid var(--line);border-top:3px solid var(--light,#E8890A);border-radius:12px;background:var(--panel-solid,#161D26);padding:16px;display:flex;flex-direction:column;gap:10px;box-shadow:0 14px 34px -18px rgba(0,0,0,.55)}
#etu .etu-act-n{font:600 10.5px var(--font-mono,'JetBrains Mono',monospace);letter-spacing:.18em;text-transform:uppercase;color:var(--light,#E8890A)}
#etu .etu-act-t{font:600 18px/1.15 var(--font-display,'Space Grotesk',sans-serif);color:var(--txt)}
#etu .etu-act-in>p{margin:0;font-size:12.5px;color:var(--muted)}
#etu .etu-act .etu-rs{max-width:none;margin:2px 0 0}
#etu .etu-act .etu-share{flex-direction:column;gap:8px;margin:0}
#etu .etu-act .etu-share .btn{flex:none;width:100%;justify-content:flex-start;padding:12px 14px;font-size:14px}
#etu .etu-act #etu-shn{margin:0;font-size:12px}
@media (min-width:981px){#etu .etu-act{position:static;margin-top:16px}#etu .etu-act .etu-share{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}#etu .etu-act .etu-share .btn{justify-content:center;padding:11px 6px;font-size:13px;min-width:0}}
@media (max-width:980px){
 #etu .etu-act{position:fixed;left:0;right:0;bottom:0;z-index:70}
 #etu .etu-act-in{flex-direction:row;flex-wrap:wrap;align-items:center;gap:8px 12px;border-radius:14px 14px 0 0;border-inline:0;border-bottom:0;padding-block:10px calc(10px + env(safe-area-inset-bottom,0px));padding-left:max(12px,env(safe-area-inset-left,0px));padding-right:max(12px,env(safe-area-inset-right,0px))}
 #etu .etu-act-n,#etu .etu-act-in>p{display:none}
 #etu .etu-act-t{font-size:14px;flex:0 0 auto}
 #etu .etu-act .etu-rs{flex:0 1 200px;margin:0}#etu .etu-act .etu-rs label{display:none}
 #etu .etu-act .etu-share{flex-direction:row;flex:1 1 360px}
 #etu .etu-act .etu-share .btn{flex:1 1 0;justify-content:center;padding:10px 8px;font-size:13px;min-width:0}
 #etu .etu-act #etu-shn{flex:1 1 100%}
 body:has(#etu .etu-act) .wa-fab{bottom:136px!important}body:has(#etu .etu-act) .rail{bottom:188px!important}body:has(#etu .etu-act) .ub-homef{bottom:88px!important}
 #etu{padding-bottom:90px}}
@media (max-width:620px){#etu .etu-act-t,#etu .etu-act .etu-rs{display:none}#etu .etu-act .etu-share .btn span{font-size:12px}}
/* facteur de maintenance CIE 154 */
#etu .etu-mfd{margin:4px 0 10px;border:1px solid var(--line,rgba(140,150,160,.35));border-radius:8px;padding:8px 10px}
#etu .etu-mfd summary{cursor:pointer;font-weight:600;color:var(--accent,#E8890A)}
#etu .etu-mfd[open] summary{margin-bottom:8px}
#etu .etu-mfd .etu-info{margin:6px 0 0;font-variant-numeric:tabular-nums}
#etu #etu-mf:disabled{opacity:.75}
/* rapport bloqué tant que l'étude n'est pas conforme */
#etu .etu-share.etu-lk .btn{opacity:.42;filter:grayscale(.7);cursor:not-allowed}
#etu #etu-shn .etu-err{display:block;margin-bottom:8px}
#etu #etu-shn #etu-fixr{width:100%;justify-content:center}
#etu #etu-pwb{background:#E8890A;border-color:#E8890A;color:#14181d;font-weight:700}
#etu .etu-fix p b{color:#3FBF84}
:root[data-theme=day] #etu .etu-fix p b{color:#2E7D5B}
/* interrupteur cadenas export */
#etu .etu-blkt{display:inline-flex;align-items:center;gap:7px;margin:4px 0 8px;padding:7px 11px;border-radius:999px;border:1px solid rgba(63,191,132,.55);background:rgba(63,191,132,.1);color:#3FBF84;font-family:inherit;font-weight:600;font-size:12.5px;line-height:1.25;cursor:pointer;text-align:start}
#etu .etu-blkt svg{width:16px;height:16px;flex:none}
#etu .etu-blkt:not(.on){border-color:rgba(232,137,10,.6);background:rgba(232,137,10,.1);color:#E8890A}
:root[data-theme=day] #etu .etu-blkt{color:#2E7D5B;border-color:rgba(46,125,91,.5)}
:root[data-theme=day] #etu .etu-blkt:not(.on){color:#B5651D;border-color:rgba(200,118,44,.6)}
#etu .etu-fix .etu-blkt{margin:8px 0 0;margin-inline-start:8px;vertical-align:middle}
#etu .etu-act .etu-blkt{width:100%}
#etu input.etu-need{border-color:#e0604c!important;box-shadow:0 0 0 3px rgba(224,96,76,.25)}
/* assistant de classes, enregistrer/ouvrir, contrôles de cohérence */
#etu .etu-cs h5{margin:10px 0 6px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent,#E8890A)}
#etu .etu-cs .etu-cs-g{display:grid;grid-template-columns:1fr;gap:6px}
@media (max-width:520px){#etu .etu-cs .etu-cs-g{grid-template-columns:1fr}}
#etu .etu-cs #etu-csa{margin-top:8px;width:100%;justify-content:center}
#etu .etu-sv{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
#etu .etu-sv .btn{display:inline-flex;align-items:center;gap:7px;flex:1 1 150px;justify-content:center;font-size:13px}
#etu .etu-sv svg{width:16px;height:16px}
#etu .etu-cc{margin-top:10px;font-size:13px;line-height:1.5}
#etu .etu-cc ul{margin:6px 0 0;padding-inline-start:18px;color:#E8A04A}
#etu .etu-cc p{margin:6px 0 0;color:#3FBF84}
:root[data-theme=day] #etu .etu-cc ul{color:#B5651D}
:root[data-theme=day] #etu .etu-cc p{color:#2E7D5B}
/* plan libre : tableau des mâts */
#etu .etu-fph{margin:12px 0 6px;font-size:13px}
#etu .etu-fptab{width:100%;font-size:12px}
#etu .etu-fptab th,#etu .etu-fptab td{padding:3px 2px;text-align:center}
#etu .etu-fptab input{width:100%;min-width:0;padding:4px 3px;font-size:12px}
#etu #etu-fpt{max-height:320px;overflow:auto}
#etu .etu-fpd{background:none;border:0;color:#e0604c;cursor:pointer;font-size:14px;padding:2px 6px}
#etu #etu-plan{cursor:crosshair}
#etu .etu-lct{font-size:12px;width:100%}
#etu .etu-lct td:not(:first-child),#etu .etu-lct th:not(:first-child){text-align:end;white-space:nowrap}
#etu #etu-lc .etu-2,#etu #etu-ob .etu-2{grid-template-columns:1fr 1fr}
/* vue 3D */
body.etu-3d-on{overflow:hidden}
.etu-3d{position:fixed;inset:0;z-index:100000;background:#0b0f14;display:flex;flex-direction:column;padding:env(safe-area-inset-top,0) env(safe-area-inset-right,0) env(safe-area-inset-bottom,0) env(safe-area-inset-left,0)}
.etu-3d-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:10px 14px;background:#161D26;color:#e8e4da;font-size:13px}
.etu-3d-bar b{font-size:15px;margin-inline-end:8px}
.etu-3d-bar .btn{padding:6px 12px;font-size:13px;border:1px solid rgba(255,255,255,.2);background:transparent;color:#e8e4da;border-radius:6px;cursor:pointer}
.etu-3d-bar .btn.on{background:#E8890A;border-color:#E8890A;color:#111}
.etu-3d-h{flex:1 1 220px;opacity:.65;font-size:12px}
.etu-3d-x{margin-inline-start:auto}
.etu-3d-c{flex:1;min-height:0;position:relative}
.etu-3d-c canvas{display:block;width:100%!important;height:100%!important}
.etu-3d-c .etu-info{color:#ccc;padding:20px}
/* compte en ligne */
.etu-acc{position:fixed;inset:0;z-index:100001;background:rgba(5,8,12,.72);display:flex;align-items:flex-start;justify-content:center;overflow:auto;padding:max(16px,env(safe-area-inset-top,0px)) 16px 24px}
.etu-acc-in{position:relative;width:100%;max-width:520px;margin-top:6vh;background:#161D26;color:#ECE7DC;border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:22px 20px;font-size:14px}
:root[data-theme=day] .etu-acc-in{background:#FBFAF6;color:#1F2326;border-color:rgba(0,0,0,.12)}
.etu-acc-in h3{margin:0 0 12px;font-size:18px}.etu-acc-in h4{margin:16px 0 8px;font-size:14px}
.etu-acc-x{position:absolute;top:10px;inset-inline-end:12px;background:none;border:0;color:inherit;font-size:18px;cursor:pointer}
.etu-acc-t{display:flex;gap:6px;margin-bottom:12px}.etu-acc-t button{flex:1;padding:8px;border:1px solid rgba(232,137,10,.5);background:transparent;color:inherit;border-radius:8px;cursor:pointer}.etu-acc-t button.on{background:#E8890A;color:#111;border-color:#E8890A}
#etu-accf{display:grid;gap:10px}#etu-accf label{display:grid;gap:4px;font-size:13px}#etu-accf input{padding:9px 10px;border-radius:8px;border:1px solid rgba(127,127,127,.4);background:transparent;color:inherit;font:inherit}
.etu-acc-in .etu-tab{width:100%}.etu-acc-in .etu-tab td{padding:6px 4px;vertical-align:middle}.etu-acc-m{margin:10px 0 0;min-height:1em}
.etu-acc-in .etu-sv{display:flex;gap:8px;flex-wrap:wrap}.etu-acc-in .btn{cursor:pointer}
.etu-accv{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px}
.etu-accvb{background:none;border:1px solid rgba(127,127,127,.35);border-radius:6px;color:inherit;font-size:11.5px;padding:3px 6px;cursor:pointer}
.etu-acca{color:#E8890A}
#etu .etu-mpt{display:inline-flex;gap:4px;margin-inline-start:10px;vertical-align:middle}
#etu .etu-mpt button{font-size:11.5px;padding:3px 8px;border-radius:6px;border:1px solid rgba(232,137,10,.5);background:transparent;color:inherit;cursor:pointer;letter-spacing:0;text-transform:none}
#etu .etu-mpt button.on{background:#E8890A;color:#111;border-color:#E8890A}
#etu .etu-mtl{display:block;margin-top:12px;font-size:12.5px;color:var(--accent,#E8890A);text-decoration:underline;text-underline-offset:3px}
/* obstacles */
#etu .etu-oxb{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
#etu .etu-oxb .btn{padding:5px 9px;font-size:12px;min-height:0;letter-spacing:0;text-transform:none}
#etu #etu-obx{min-width:0;max-width:100%}
#etu .etu-oxc{border:1px solid rgba(128,128,128,.28);border-radius:8px;padding:8px;margin:6px 0}
#etu .etu-oxh{display:flex;align-items:center;gap:8px;margin-bottom:6px}
#etu .etu-oxh b{font-size:12px;opacity:.7;min-width:16px}
#etu .etu-oxh select{flex:1;min-width:0;padding:5px 6px;font-size:13px}
#etu .etu-oxg{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
#etu .etu-oxg label{display:flex;flex-direction:column;gap:2px;font-size:10.5px;opacity:.95;min-width:0}
#etu .etu-oxg input{width:100%;min-width:0;padding:5px 6px;font-size:13px}
#etu .etu-oxg input:disabled{opacity:.35}
#etu .etu-oxg label span{text-transform:none;letter-spacing:0}
#etu .etu-tnt{width:100%;font-size:12px}
#etu .etu-tnt th,#etu .etu-tnt td{padding:4px 5px;text-align:left;white-space:nowrap}
#etu #etu-tnc{width:100%;height:auto;margin-top:8px;border-radius:6px}
#etu #etu-tunres .etu-err{color:#e0604c;font-size:12.5px}
#etu .etu-dxi2{font-weight:inherit}
#etu textarea#etu-nt{width:100%;min-height:96px;resize:vertical;font:inherit;font-size:13px;line-height:1.45;padding:9px 11px;box-sizing:border-box;border:1px solid var(--line,#d9d4c8);border-radius:8px;background:var(--panel-solid,#141a22);color:var(--txt,inherit)}
[data-theme=day] #etu textarea#etu-nt{background:#fff;color:#1f2326}
#etu #etu-cpsm{margin:-6px 0 10px}
/* aide contextuelle (i) */
#etu .etu-i{all:unset;box-sizing:border-box;display:inline-flex;align-items:center;justify-content:center;width:17px;height:17px;margin-left:5px;border-radius:50%;border:1.3px solid currentColor;color:var(--light,#E8890A);font:italic 700 11px/1 Georgia,serif;cursor:pointer;vertical-align:1px;letter-spacing:0;text-transform:none;flex:none}
#etu .etu-i:hover,#etu .etu-i:focus-visible{background:var(--light,#E8890A);color:#fff}
.etu-pop{position:absolute;z-index:9999;background:#1d232b;color:#eef2f6;border-radius:10px;padding:12px 30px 12px 14px;font:13.5px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif;box-shadow:0 10px 30px rgba(0,0,0,.35);text-transform:none;letter-spacing:0}
.etu-pop p{margin:0}.etu-pop .etu-pops{margin-top:8px;padding-top:8px;border-top:1px solid rgba(255,255,255,.15);font-size:12.5px;color:#cfd8e3}
.etu-pop .etu-popx{all:unset;position:absolute;top:6px;right:10px;cursor:pointer;font-size:18px;color:#cfd8e3}
/* vignettes puissance / luminaire piéton */
#etu .etu-pv,#etu .etu-pcat{display:flex;gap:8px;flex-wrap:wrap;margin:4px 0 10px}
#etu .etu-pvi,#etu .etu-pci{all:unset;box-sizing:border-box;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px;width:84px;padding:6px 4px;border:1.5px solid var(--line,#d9d4c8);border-radius:10px;background:var(--card,#fff);text-align:center;transition:border-color .15s,box-shadow .15s}
#etu .etu-pvi img,#etu .etu-pci img{height:56px;max-width:72px;object-fit:contain}
#etu .etu-pvi span{font-size:11.5px;font-weight:600}#etu .etu-pvi small,#etu .etu-pci small{font-size:10.5px;opacity:.8;line-height:1.2}
#etu .etu-pvi.on,#etu .etu-pci.on{border-color:var(--light,#E8890A);box-shadow:0 0 0 2px rgba(232,137,10,.25)}
#etu .etu-pcs{height:56px;display:flex;align-items:center;font-size:26px;opacity:.6}
#etu .etu-pcat{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;scroll-snap-type:x proximity}#etu .etu-pci{flex:none;scroll-snap-align:start}

#etu .etu-form,#etu .etu-grid>*{min-width:0}
#etu .etu-cpsw{border:1px solid var(--line,#d9d4c8);border-radius:12px;padding:10px 12px;margin:-4px 0 14px;display:grid;gap:8px}
#etu .etu-cwt{font-weight:700;font-size:13px}#etu .etu-cwh{font-size:12px;opacity:.8;margin:0;line-height:1.4}
#etu .etu-cwr{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;padding:8px;border-radius:10px;border:1px solid var(--line,#d9d4c8)}
#etu .etu-cwr.onr,#etu .etu-cwr.onp{border-color:var(--light,#E8890A);box-shadow:0 0 0 2px rgba(232,137,10,.18)}
#etu .etu-cwk{font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:2px 7px;border-radius:20px;background:rgba(127,127,127,.15)}
#etu .etu-cwk.kr{background:rgba(232,137,10,.18)}#etu .etu-cwk.kp{background:rgba(46,160,90,.18)}
#etu .etu-cwv{display:flex;align-items:center;gap:4px;font-size:13px;font-weight:600;margin:0}#etu .etu-cwv input{width:74px;padding:4px 6px;font-size:14px}
#etu .etu-cwhh,#etu .etu-cwn{font-size:12px;opacity:.75}
#etu .etu-cwb{display:flex;gap:6px;margin-left:auto}#etu .etu-cwb button{all:unset;cursor:pointer;font-size:12px;font-weight:600;padding:4px 10px;border-radius:8px;border:1px solid var(--line,#d9d4c8)}
#etu .etu-cwb button.on{border-color:var(--light,#E8890A);background:rgba(232,137,10,.15)}
#etu .etu-cwx{flex-basis:100%;font-size:11px;opacity:.7;line-height:1.35;min-width:0;overflow-wrap:anywhere}
#etu .etu-cwb button.etu-cwdel{padding:4px 8px;color:#c0392b;border-color:rgba(192,57,43,.35)}#etu .etu-cwb button.etu-cwdel:hover{background:rgba(192,57,43,.1)}
#etu .etu-form details{max-width:100%;min-width:0;overflow-x:auto}
#etu .etu-form .etu-tab{max-width:100%}
#etu .etu-lct{table-layout:fixed;width:100%;font-size:12.5px}#etu .etu-lct th,#etu .etu-lct td{overflow-wrap:anywhere;padding:5px 4px}#etu .etu-lct th:first-child,#etu .etu-lct td:first-child{width:34%}
#etu .etu-lct td,#etu .etu-lct th{white-space:normal!important}#etu .etu-lct td:not(:first-child){font-size:11.5px;text-align:right;overflow-wrap:normal;word-break:normal}#etu .etu-lct th:not(:first-child){text-align:right}
@media (min-width:981px){#etu .etu-grid{align-items:start}#etu .etu-out{position:sticky;top:var(--etu-top,12px);max-height:calc(100vh - var(--etu-top,12px) - 12px);max-height:calc(100dvh - var(--etu-top,12px) - 12px);overflow-y:auto;overscroll-behavior:contain;padding-right:6px;scrollbar-width:thin;border-radius:12px}}
#etu .etu-act .etu-optb{width:100%;justify-content:center;padding:12px 14px;font-size:14px;margin:0}
#etu .etu-act .etu-optb.etu-optoff{opacity:.55;background:transparent;color:var(--muted);border:1px dashed var(--line);box-shadow:none;cursor:not-allowed}
#etu .etu-optm{margin:0;font-size:12.5px;line-height:1.45;padding:9px 11px;border-radius:10px;border:1px solid rgba(232,137,10,.45);background:rgba(232,137,10,.1);color:var(--txt)}#etu .etu-optm b{display:block;margin-bottom:2px;color:var(--light,#E8890A)}
@media (max-width:980px){#etu .etu-act .etu-optb{flex:1 1 100%;padding:9px}#etu .etu-optm{flex:1 1 100%}}
@media (min-width:981px){#etu .etu-act .etu-share .btn{font-size:12.5px;gap:6px;padding:10px 4px}#etu .etu-act .etu-share .btn svg{flex:none;width:16px;height:16px}}
#etu .etu-phx{display:grid;gap:6px;border-top:1px solid var(--line);padding-top:10px}#etu .etu-phxt{font-size:12px;font-weight:600;color:var(--muted)}
#etu .etu-phxb{display:flex;flex-wrap:wrap;gap:6px}#etu .etu-phxb .btn{flex:1 1 70px;justify-content:center;padding:8px 6px;font-size:12.5px;min-width:0;margin:0}
#etu .etu-phxm{margin:0;font-size:11.5px;color:var(--muted);overflow-wrap:anywhere}#etu .etu-phxm:empty{display:none}
@media (max-width:980px){#etu .etu-phx{flex:1 1 100%;border-top:0;padding-top:0}#etu .etu-phxt{display:none}}
/* écrans tactiles : zones à toucher d'au moins 32–44 px sans changer le dessin (audit n° 45) */
@media (pointer:coarse),(max-width:760px){
 .etu-i{position:relative}
 .etu-i::after{content:"";position:absolute;left:50%;top:50%;width:36px;height:36px;transform:translate(-50%,-50%);border-radius:50%}
 .etu-undo{display:inline-flex;align-items:center;min-height:32px;padding:0 6px}
 .etu-mpt button{min-height:34px}
}

/* listes déroulantes : ouverture immédiate, sans animation de bordure */
#etu select{transition:none!important}
/* listes déroulantes D-SLS (ordinateur) : remplace l'affichage de la liste native (fond blanc au démarrage, liste plein écran) */
#etu select.etu-snat{position:absolute!important;width:1px!important;height:1px!important;opacity:0!important;pointer-events:none!important;overflow:hidden;clip:rect(0 0 0 0);margin:0;padding:0;border:0}
#etu .etu-sb{display:flex;align-items:center;width:100%;min-width:0;background:var(--panel-solid,#141a22);border:1px solid var(--line,#2a3340);border-radius:0;color:var(--txt,#ECE7DC);font-family:var(--font-display,inherit);text-align:start;padding-right:34px!important;position:relative;cursor:pointer;line-height:1.3;box-sizing:border-box;contain:inline-size}
#etu .etu-sb .etu-sbt{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#etu .etu-sb::after{content:"";position:absolute;inset-inline-end:13px;top:50%;width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:translateY(-70%) rotate(45deg);opacity:.75}
#etu .etu-sb[aria-expanded=true],#etu .etu-sb:focus-visible{border-color:var(--light,#E8890A);outline:none;box-shadow:0 0 0 3px rgba(232,137,10,.14)}
#etu .etu-sb:disabled{opacity:.5;cursor:default}
#etu .etu-sb[hidden]{display:none}
.etu-sp{position:fixed;z-index:2147483000;overflow-y:auto;overscroll-behavior:contain;background:var(--panel-solid,#141a22);border:1px solid var(--light,#E8890A);box-shadow:0 14px 36px rgba(0,0,0,.45);padding:4px 0;font-family:var(--font-display,inherit);font-size:14px;color:var(--txt,#ECE7DC);max-width:min(560px,calc(100vw - 8px))}
.etu-sp .etu-so{padding:7px 14px;cursor:pointer;white-space:normal;line-height:1.3}
.etu-sp .etu-so.ind{padding-inline-start:26px}
.etu-sp .etu-so.hl{background:rgba(232,137,10,.18)}
.etu-sp .etu-so.on{color:var(--light,#E8890A);font-weight:600}
.etu-sp .etu-so.dis{opacity:.45;cursor:default}
.etu-sp .etu-sg{padding:8px 14px 4px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted,#8a9aab)}
#etu .etu-grid>*{min-width:0}
/* coins arrondis (v43) */
#etu .btn,#etu .etu-sb,#etu input:not([type=checkbox]):not([type=radio]):not([type=range]),#etu textarea,#etu select{border-radius:10px!important}
#etu .panelbox{border-radius:14px!important}
#etu input[type=checkbox]{border-radius:4px!important}
.etu-sp{border-radius:10px}
.etu-sp .etu-so{border-radius:6px;margin:0 4px}
/* bilan énergétique : bandeau de réduction (v45) */
#etu .etu-lcban{display:grid;grid-template-columns:auto 1fr;gap:2px 14px;align-items:center;padding:12px 14px;margin:4px 0 12px;border-radius:12px;background:linear-gradient(135deg,rgba(46,160,90,.18),rgba(46,160,90,.06));border:1px solid rgba(46,160,90,.45)}
#etu .etu-lcban b{grid-row:span 2;font-size:30px;line-height:1;font-weight:800;color:#2ea05a;letter-spacing:-.02em}
#etu .etu-lcban span{font-weight:700;font-size:14px}
#etu .etu-lcban small{font-size:12px;opacity:.85;line-height:1.4}
#etu .etu-lcok{color:#2ea05a}
#etu .etu-cwk.ku{background:rgba(127,127,127,.22)}
#etu #etu-bq .btn{justify-self:start}
/* défilement : la colonne de résultats défile, puis entraîne toute la page à ses extrémités (v46) */
@media (min-width:981px){#etu .etu-out{overscroll-behavior:auto!important}}
#etu .etu-bqc{font-size:11px;font-weight:700;padding:2px 8px;border-radius:20px}
#etu .etu-bqc.ok{background:rgba(46,160,90,.18);color:#2ea05a}
#etu .etu-bqc.wa{background:rgba(232,137,10,.18);color:#c87410}
#etu .etu-bqc.ko{background:rgba(192,57,43,.15);color:#c0392b}
/* PDF allégé (v48) */
#etu .etu-share .etu-lite{flex-basis:100%;grid-column:1/-1;font-size:13px;border-style:dashed}
/* retirer le document importé (v49) */
#etu .etu-cpsx{display:inline-flex;align-items:center;gap:6px;margin-top:8px;padding:6px 10px;font:inherit;font-size:12px;font-weight:600;color:#c0392b;background:transparent;border:1px solid rgba(192,57,43,.4);border-radius:8px;cursor:pointer;max-width:100%;text-align:start}
#etu .etu-cpsx:hover{background:rgba(192,57,43,.1)}
#etu .etu-cpsx svg{width:15px;height:15px;flex:none}
#etu .etu-cpsx span{overflow:hidden;text-overflow:ellipsis}
/* type d'étude + type de voie côte à côte (v50) */
#etu .etu-typ{align-items:end}
#etu .etu-typ.one{grid-template-columns:1fr}
#etu .etu-typ>div[hidden]{display:none}
/* solution automatique dans le formulaire de calcul (v51) */
#etu .etu-btns{display:grid;gap:8px}
#etu .etu-btns .etu-optb{width:100%;justify-content:center;padding:12px 14px;font-size:14px;margin:0}
#etu .etu-btns .etu-optb.etu-optoff{opacity:.55;background:transparent;color:var(--muted);border:1px dashed var(--line);box-shadow:none;cursor:not-allowed}
/* luminaires en série (v52) */
#etu .etu-sh{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--light,#E8890A);margin:6px 0 10px;padding-bottom:6px;border-bottom:1px solid var(--line,#d9d4c8)}
#etu .etu-ser{margin:18px 0 6px;padding:12px;border:1px solid var(--line,#d9d4c8);border-radius:12px}
#etu .etu-ser[hidden]{display:none}
#etu .etu-ser .etu-pdb{margin-top:8px}
/* carte « Étape 2 · Calcul et projet » (v53) */
#etu .etu-calc{margin:16px 0 4px;padding:16px;border:1px solid var(--line,#d9d4c8);border-top:3px solid #2ea05a;border-radius:12px;background:var(--panel-solid,#161D26);display:flex;flex-direction:column;gap:10px;box-shadow:0 14px 34px -18px rgba(0,0,0,.45)}
#etu .etu-calc-n{font:600 10.5px var(--font-mono,'JetBrains Mono',monospace);letter-spacing:.18em;text-transform:uppercase;color:#2ea05a}
#etu .etu-calc-t{font:600 18px/1.15 var(--font-display,'Space Grotesk',sans-serif);color:var(--txt)}
#etu .etu-calc-s{margin:0;font-size:12.5px;color:var(--muted)}
#etu .etu-calc .etu-sv{margin:0}
#etu .etu-calc .etu-btns .etu-optb:not(.etu-optoff){background:#2ea05a!important;border-color:#2ea05a!important;color:#fff!important;font-weight:700}
#etu .etu-calc .etu-btns .etu-optb:not(.etu-optoff):hover{background:#268a4d}
/* luminaire ajouté en option + inventaire du plan DXF (v54) */
#etu .etu-ser label.etu-pdl{display:none!important}
#etu .etu-ser .etu-addl{width:100%;justify-content:center;border-style:dashed;font-weight:600}
#etu .etu-ser .etu-rml{display:block;margin:0 0 10px auto;font:inherit;font-size:12px;font-weight:600;color:#c0392b;background:transparent;border:1px solid rgba(192,57,43,.4);border-radius:8px;padding:4px 10px;cursor:pointer}
#etu .etu-ser .etu-rml[hidden],#etu .etu-ser .etu-addl[hidden]{display:none}
#etu .etu-dqr{cursor:pointer}
#etu .etu-dqr input{width:auto;margin:0}
#etu .etu-dqb{display:flex;flex-wrap:wrap;gap:8px}
#etu .etu-dqb .btn{flex:1 1 180px;justify-content:center}
/* luminaires du projet : N modèles (v57) */
#etu .etu-ml{margin-top:14px}
#etu .etu-mln{max-width:260px}
#etu .etu-mlrow{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:8px 10px;align-items:end;margin-bottom:8px}
#etu .etu-mlrow>.etu-cwk{grid-column:1/-1;justify-self:start}
#etu .etu-mlrow .etu-mlm{grid-column:1/-1;display:grid;gap:4px;margin:0;min-width:0}
#etu .etu-mlrow .etu-mlm select,#etu .etu-mlrow .etu-mlm .etu-sb{width:100%}
#etu .etu-mlrow .etu-cwv{display:grid;gap:4px;margin:0;min-width:0;font-size:12px;font-weight:600}
#etu .etu-mlrow .etu-cwv input{width:100%}
/* catalogue : « + » pour ajouter un modèle aux luminaires du projet (cadre vert) (v59) */
#etu .etu-card{position:relative}
#etu .etu-cadd{position:absolute;top:5px;inset-inline-end:5px;z-index:2;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font:700 16px/1 system-ui,sans-serif;color:#2ea05a;background:var(--panel-solid,#fff);border:1.5px solid #2ea05a;box-shadow:0 2px 6px rgba(0,0,0,.25);cursor:pointer;transition:transform .15s,background .15s}
#etu .etu-cadd:hover{transform:scale(1.12);background:#2ea05a;color:#fff}
#etu .etu-card.add{border-color:#2ea05a;box-shadow:0 0 0 2px rgba(46,160,90,.45)}
#etu .etu-card.add .etu-cadd{background:#2ea05a;color:#fff}
#etu .etu-card.on.add{box-shadow:0 0 0 2px rgba(243,156,27,.45),0 0 0 5px rgba(46,160,90,.45)}
#etu .etu-cath{margin:-4px 0 12px}
#etu .etu-k-or{color:var(--light,#E8890A)}#etu .etu-k-gr{color:#2ea05a}
#etu .etu-mlrow.etu-flash{animation:etuFl 1.4s ease}
@keyframes etuFl{0%,40%{box-shadow:0 0 0 3px rgba(46,160,90,.6);border-color:#2ea05a}100%{box-shadow:none}}