:root{font-family:system-ui,-apple-system,sans-serif;color:#16324b;background:#f2f6f8;--blue:#153f64;--teal:#087e87}*{box-sizing:border-box}body{margin:0;padding-bottom:100px}header{background:var(--blue);color:white;display:flex;justify-content:space-between;align-items:center;padding:18px max(18px,calc((100% - 1080px)/2));gap:12px}.brand{display:flex;gap:12px;color:white;text-decoration:none;align-items:center;font-size:24px;font-weight:700}.brand small{display:block;font-size:9px;letter-spacing:1.5px;margin-top:5px;font-weight:500}.logo{font-size:18px;border:1px solid #ffffff70;border-radius:10px;padding:12px 6px;color:#ecc77f}button,input,select{font:inherit}button{cursor:pointer;border:0;border-radius:9px;padding:12px 17px;background:var(--blue);color:white;font-weight:650}header button{background:#ffffff14;border:1px solid #ffffff50;font-size:12px}main{max-width:1080px;margin:auto;padding:27px 18px}.hero{background:linear-gradient(110deg,#153f64,#156b72);border-radius:18px;padding:30px;color:white;margin-bottom:25px}.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:700;color:#bce3df}.hero h1{font-size:clamp(27px,5vw,38px);line-height:1.15;margin:13px 0}.hero p{line-height:1.65;color:#dbedef;max-width:660px;font-size:14px}.hero a{display:inline-block;color:var(--blue);background:white;padding:12px 17px;text-decoration:none;border-radius:9px;font-weight:650;margin-top:8px}.section{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:22px 0 16px}h2{font-size:23px;margin:0}h3{font-size:17px;margin-top:0}.muted{font-size:13px;line-height:1.6;color:#62788a}.badge{font-size:10px;background:#e1eeeb;padding:6px 9px;border-radius:7px;color:#187267;white-space:nowrap}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.card{cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-decoration:none;color:inherit;text-align:center;background:white;border:1px solid #dfe7ed;border-radius:15px;padding:18px 10px;min-height:158px;box-shadow:0 3px 10px #153f6405}.card:hover{border-color:var(--teal);box-shadow:0 4px 15px #153f6415}.card svg{width:108px;height:78px}.card strong{font-size:15px}.card span{font-size:11px;color:#6b7e8f}.panel{border:1px solid #dfe7ed;border-radius:15px;background:white;padding:22px;margin-bottom:18px}.layout{display:grid;grid-template-columns:1.05fr 1fr;gap:20px;align-items:start}.diagram{text-align:center;background:#f0f6f7;border-radius:10px;padding:10px;margin-bottom:20px}.diagram svg{width:100%;height:190px;max-width:420px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field label{display:block;font-size:12px;font-weight:600;margin-bottom:7px}.input-wrap{display:flex;border:1px solid #c7d6e0;border-radius:8px;overflow:hidden}.input-wrap:focus-within{outline:2px solid #087e8760}.input-wrap input{width:100%;min-width:0;background:white;border:0;padding:12px;color:#16324b}.input-wrap span{padding:13px 10px;background:#edf4f7;font-size:12px;white-space:nowrap}select{width:100%;border:1px solid #c7d6e0;border-radius:8px;padding:12px;color:#16324b;background:white}fieldset{border:0;padding:0;margin:20px 0}legend{font-size:14px;font-weight:700;border-bottom:1px solid #e2eaf0;padding:0 0 10px;width:100%;margin-bottom:15px}.actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}.secondary{background:#e6f1f2;color:#17616a}.notice{background:#fff9ec;border-left:3px solid #d7b164;border-radius:4px;font-size:12px;line-height:1.7;padding:12px 14px;margin-top:18px}.result-number{font-size:32px;font-weight:750;color:var(--teal);margin:15px 0}.result-number small{font-size:16px}table{width:100%;border-collapse:collapse;font-size:13px}td,th{padding:12px 5px;border-bottom:1px solid #e5ecf1;text-align:left}td:last-child{text-align:right;font-variant-numeric:tabular-nums;font-weight:600}.error{color:#ad2828;font-size:13px;line-height:1.5}.back{background:none;color:var(--blue);padding:0;margin-bottom:18px;font-size:13px}nav{position:fixed;bottom:0;left:0;right:0;display:flex;justify-content:center;background:#fff;border-top:1px solid #dbe5ed;padding:7px 4px max(8px,env(safe-area-inset-bottom));z-index:10}nav a{width:110px;min-width:60px;text-align:center;text-decoration:none;color:#718595;font-size:11px;border-radius:9px;padding:9px 4px}nav a b{display:block;font-size:21px;font-weight:400;margin-bottom:4px}nav a.active{color:#087e87;background:#e5f2f0}#toast{display:none;position:fixed;bottom:98px;left:50%;transform:translateX(-50%);background:var(--blue);color:white;padding:14px 20px;border-radius:10px;z-index:20;max-width:90%;font-size:13px}.saved-row{display:flex;justify-content:space-between;gap:12px;align-items:center}.summary{font-size:12px;line-height:1.7}.empty{padding:28px;text-align:center;color:#62788a}footer{font-size:11px;text-align:center;color:#718595;padding-top:25px}.sr-only{position:absolute;width:1px;height:1px;clip:rect(0,0,0,0);overflow:hidden}@media(max-width:680px){header{padding:14px}.brand{font-size:19px}.brand small{font-size:8px}.logo{font-size:16px}.hero{padding:23px}.grid{gap:10px}.card{min-height:140px;padding:14px 6px}.card strong{font-size:12px}.card span{font-size:10px}.card svg{width:85px;height:65px}.layout{grid-template-columns:1fr}.panel{padding:17px}main{padding:20px 13px}h2{font-size:21px}}@media print{body{background:white;padding:0}header,nav,form,.back,.actions,footer,#toast{display:none!important}main{max-width:none;padding:0}.layout{display:block}.panel{padding:0;border:0}.result-panel{break-inside:avoid}.result-panel:before{content:'HKL STRUCTURE — HKL EXPERTISE';display:block;font-size:19px;font-weight:bold;margin-bottom:20px}.notice{border:1px solid #ccc}h2{margin-bottom:20px}}
.design-module-list{display:grid;gap:13px;max-width:760px;margin:24px auto}.design-module{display:flex;align-items:center;gap:16px;background:#fff;color:#16324b;border:1px solid #d7e2e9;border-radius:14px;padding:16px;text-decoration:none;min-height:102px;box-shadow:0 3px 12px #153f6405}.design-module:hover{border-color:#087e87}.design-module-icon{display:flex;align-items:center;justify-content:center;background:#eef5f7;border-radius:12px;flex:none;width:82px;height:75px}.design-module-icon svg{width:82px;height:65px}.design-module strong{font-size:18px;display:block}.design-module small{font-size:13px;line-height:1.5;display:block;color:#62788a;margin-top:5px}.design-module>b{margin-left:auto;font-size:28px;color:#688395}html[data-hkl-theme=dark] .design-module{background:#192b3b;color:#e0eaf1;border-color:#385064}html[data-hkl-theme=dark] .design-module small{color:#acc0d0}@media(max-width:430px){.design-module{padding:13px;gap:12px}.design-module-icon{width:65px;height:65px}.design-module-icon svg{width:65px}.design-module strong{font-size:16px}}

/* Visuels photographiques des outils, séparés des schémas cotés. */
.card .tool-photo{display:block;width:100%;height:auto;aspect-ratio:1;object-fit:contain;border-radius:10px;background:#e7e4df}.card:has(.tool-photo){justify-content:flex-start;padding:9px;gap:12px}.card:has(.tool-photo) strong{min-height:38px;display:flex;align-items:center;justify-content:center}.card:has(.tool-photo) span{padding:0 3px 6px}.design-module-icon{overflow:hidden}.design-module-icon .tool-photo{width:100%;height:100%;object-fit:contain;border-radius:10px}@media(max-width:680px){.card:has(.tool-photo){padding:6px;gap:8px}.card:has(.tool-photo) strong{min-height:34px;font-size:12px;line-height:1.3}.card .tool-photo{border-radius:7px}}

.structure-tools{grid-template-columns:repeat(2,minmax(0,1fr));max-width:700px}.structure-tools .tool-photo{max-height:190px}.structure-tools .card{padding:10px}.structure-tools + section{margin-top:28px}#metre-heading{margin-top:8px}