/* Outils — Découvertes Scientifiques : atelier de mesure (encre marine, papier, bleu cobalt, vert acide) */
.ot-main{--ink:#172b35;--paper:#f7f7ef;--muted:#506169;--line:#cdd5cf;--blue:#234ad9;--acid:#d8ed86;--navy:#102d38;--white:#fff;--warn:#9a3b12;--ok:#1f6b45;--soft:#eef2fb;font-family:Manrope,Arial,sans-serif;color:var(--ink);line-height:1.6;font-size:17px;padding:8px 0 72px;outline:0}
.ot-main *,.ot-main *::before,.ot-main *::after{box-sizing:border-box}
.ot-main [hidden]{display:none!important}
.ot-wrap{width:min(1180px,calc(100% - 40px));margin-inline:auto}
.ot-sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.ot-main a{color:var(--blue);text-underline-offset:3px}
.ot-main a:hover{color:var(--navy)}
.ot-main :focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:2px}
.ot-main h1,.ot-main h2,.ot-main h3{font-family:Manrope,Arial,sans-serif;color:var(--navy);letter-spacing:-.02em;line-height:1.12;margin:0}
.ot-crumb{margin:22px 0 10px;font-size:14px}
.ot-crumb ol{display:flex;flex-wrap:wrap;gap:4px 0;list-style:none;margin:0;padding:0}
.ot-crumb li+li::before{content:"/";margin:0 9px;color:var(--muted)}
.ot-crumb [aria-current]{color:var(--muted)}
.ot-kicker{display:inline-block;margin:10px 0 14px;padding:4px 10px;background:var(--acid);color:var(--navy);font-weight:800;font-size:12px;letter-spacing:.11em;text-transform:uppercase}
.ot-head h1,.ot-hubhead h1{font-size:clamp(34px,5.2vw,62px);font-weight:800;max-width:19ch}
.ot-lead{font-size:clamp(18px,2vw,21px);max-width:62ch;margin:18px 0 18px;color:#26404c}
.ot-badges,.ot-promises{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0 0 28px;padding:0}
.ot-badges li{border:1px solid var(--navy);padding:4px 11px;font-size:13px;font-weight:700;background:var(--white)}
/* panneau outil */
.ot-app{background:var(--white);border:1px solid var(--line);border-top:6px solid var(--navy);padding:clamp(16px,3vw,30px);margin:6px 0 34px;box-shadow:8px 8px 0 var(--soft)}
.ot-demo{margin:0 0 18px;font-size:14px;font-weight:700;color:var(--blue)}
.ot-noscript{background:#fff6e5;border:1px solid #e9c46a;padding:12px 14px;margin:0 0 12px}
.ot-grid2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px}
.ot-grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.ot-split{display:grid;grid-template-columns:minmax(260px,380px) minmax(0,1fr);gap:26px;align-items:start}
.ot-panel{border:1px solid var(--line);background:var(--paper);padding:16px 18px}
.ot-panel>h3{font-size:15px;text-transform:uppercase;letter-spacing:.09em;margin-bottom:10px;color:var(--navy)}
.ot-field{display:flex;flex-direction:column;gap:5px;margin:0 0 14px;font-weight:700;font-size:14px}
.ot-field small{font-weight:500;color:var(--muted);font-size:13px}
.ot-field input,.ot-field select,.ot-field textarea,.ot-input{font:inherit;font-weight:600;font-size:17px;padding:10px 12px;border:1.5px solid #8ea0a8;background:var(--white);color:var(--ink);border-radius:2px;min-height:46px;width:100%}
.ot-field textarea{min-height:140px;font-family:ui-monospace,Consolas,monospace;font-size:15px;line-height:1.5;resize:vertical}
.ot-field input:invalid,.ot-field [aria-invalid="true"]{border-color:var(--warn)}
.ot-row{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end}
.ot-row>*{flex:1 1 140px}
.ot-seg{display:flex;flex-wrap:wrap;gap:0;margin:0 0 14px;border:1.5px solid var(--navy);width:fit-content;max-width:100%}
.ot-seg label{position:relative;cursor:pointer;margin:0}
.ot-seg input{position:absolute;opacity:0;inset:0;cursor:pointer}
.ot-seg span{display:block;padding:9px 14px;font-weight:700;font-size:14px;border-right:1px solid var(--navy);min-height:44px;line-height:26px}
.ot-seg label:last-child span{border-right:0}
.ot-seg input:checked+span{background:var(--navy);color:var(--acid)}
.ot-seg input:focus-visible+span{outline:3px solid var(--blue);outline-offset:-3px}
.ot-btn,.ot-actions button,.ot-main button.ot-btn{font:inherit;font-weight:800;font-size:14px;padding:10px 16px;min-height:44px;border:1.5px solid var(--navy);background:var(--navy);color:var(--white);cursor:pointer;border-radius:2px}
.ot-actions button:hover,.ot-btn:hover{background:var(--blue);border-color:var(--blue)}
.ot-actions .ot-ghost,.ot-btn.ot-ghost{background:var(--white);color:var(--navy)}
.ot-actions .ot-ghost:hover{background:var(--soft);color:var(--navy)}
.ot-actions{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 0}
.ot-error{background:#fdeee8;border:1px solid var(--warn);color:#6b2508;padding:10px 14px;margin:0 0 14px;font-weight:700}
.ot-note{font-size:14px;color:var(--muted)}
.ot-out{background:var(--navy);color:#e8f3f1;padding:20px 22px;min-height:120px}
.ot-out .ot-big{font-size:clamp(28px,4.4vw,46px);font-weight:800;color:var(--acid);line-height:1.1;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
.ot-out .ot-sub{color:#b9ccd1;font-size:15px;margin:6px 0 0}
.ot-out dl{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;margin:14px 0 0}
.ot-out dt{color:#b9ccd1;font-size:14px}
.ot-out dd{margin:0;font-weight:700;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.ot-out a{color:var(--acid)}
.ot-table{width:100%;border-collapse:collapse;font-size:15px;font-variant-numeric:tabular-nums}
.ot-table th,.ot-table td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.ot-table thead th{background:var(--navy);color:var(--white);font-size:13px;letter-spacing:.05em;text-transform:uppercase;position:sticky;top:0}
.ot-table td.num,.ot-table th.num{text-align:right}
.ot-table tr.is-sel td{background:#eef6c9;font-weight:700}
.ot-scroll{overflow:auto;max-width:100%;max-height:440px;border:1px solid var(--line)}
.ot-chart{width:100%;height:auto;display:block;background:var(--white);border:1px solid var(--line)}
.ot-chart text{font-family:Manrope,Arial,sans-serif}
.ot-kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:0 0 16px}
.ot-kpi{background:var(--paper);border:1px solid var(--line);border-left:5px solid var(--blue);padding:9px 12px}
.ot-kpi span{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:800}
.ot-kpi b{display:block;font-size:20px;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;color:var(--navy)}
.ot-tabs{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 14px}
.ot-tabs button{font:inherit;font-weight:800;font-size:14px;padding:8px 14px;min-height:44px;border:1.5px solid var(--navy);background:var(--white);color:var(--navy);cursor:pointer}
.ot-tabs button[aria-pressed="true"]{background:var(--acid)}
.ot-range{width:100%;accent-color:var(--blue);min-height:36px}
/* sections statiques */
.ot-example,.ot-method,.ot-faq,.ot-links,.ot-guides,.ot-band{margin:44px 0}
.ot-main h2{font-size:clamp(24px,3vw,34px);font-weight:800;margin-bottom:14px}
.ot-main h3{font-size:18px;font-weight:800;margin:20px 0 8px}
.ot-example,.ot-method{max-width:78ch}
.ot-example table{display:block;overflow-x:auto;max-width:100%;border-collapse:collapse;width:100%;font-size:15px}
.ot-example th,.ot-example td{border:1px solid var(--line);padding:7px 10px;text-align:left}
.ot-example th{background:var(--soft)}
.ot-method li{margin:6px 0}
.ot-faq details{border-top:1px solid var(--line);padding:0}
.ot-faq details:last-of-type{border-bottom:1px solid var(--line)}
.ot-faq summary{cursor:pointer;font-weight:800;padding:14px 4px;list-style:none;display:flex;justify-content:space-between;gap:12px;min-height:44px}
.ot-faq summary::after{content:"+";font-size:22px;line-height:1;color:var(--blue)}
.ot-faq details[open] summary::after{content:"−"}
.ot-faq details>div{padding:0 4px 16px;max-width:75ch}
.ot-cta{border:1.5px dashed var(--navy);padding:16px 20px;display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;background:var(--white)}
.ot-cta p{margin:0;max-width:60ch;font-size:15px}
.ot-cta a{font-weight:800}
.ot-links-cols{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.ot-links ul,.ot-guides ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.ot-links li a,.ot-guides li a{display:block;border:1px solid var(--line);background:var(--white);padding:10px 14px;text-decoration:none;color:var(--ink)}
.ot-links li a:hover,.ot-guides li a:hover{border-color:var(--blue);background:var(--soft)}
.ot-links li b,.ot-guides li b{display:block;color:var(--navy)}
.ot-links li span,.ot-guides li span{font-size:14px;color:var(--muted)}
.ot-guides ul{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.ot-privacy{font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;max-width:80ch}
/* hub */
.ot-hubhead h1{max-width:20ch}
.ot-promises li{display:flex;flex-direction:column;border-left:4px solid var(--blue);padding:2px 14px;min-width:190px}
.ot-promises b{color:var(--navy)}
.ot-promises span{font-size:14px;color:var(--muted)}
.ot-filter{position:sticky;top:0;z-index:5;background:var(--paper);border-block:1px solid var(--navy);padding:14px 0 12px;margin:10px 0 26px}
.ot-filter label{font-weight:800;display:block;margin-bottom:6px}
.ot-filter input[type=search]{font:inherit;font-size:18px;font-weight:600;width:100%;max-width:560px;padding:11px 14px;min-height:48px;border:2px solid var(--navy);background:var(--white);border-radius:2px}
.ot-chips{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0 4px}
.ot-chips button{font:inherit;font-size:14px;font-weight:800;min-height:44px;padding:6px 14px;border:1.5px solid var(--navy);background:var(--white);color:var(--navy);cursor:pointer}
.ot-chips button[aria-pressed="true"]{background:var(--navy);color:var(--acid)}
.ot-count{margin:6px 0 0;font-size:14px;color:var(--muted)}
.ot-group{margin:0 0 40px}
.ot-group>h3{font-size:14px;letter-spacing:.14em;text-transform:uppercase;border-bottom:3px solid var(--navy);padding-bottom:8px;margin:0 0 18px}
.ot-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.ot-card{display:flex;flex-direction:column;height:100%;background:var(--white);border:1px solid var(--line);text-decoration:none;color:var(--ink);transition:transform .18s,box-shadow .18s}
.ot-card:hover{transform:translate(-3px,-3px);box-shadow:6px 6px 0 var(--navy);border-color:var(--navy);color:var(--ink)}
.ot-card-fig{display:block;background:linear-gradient(#e6ecf9 1px,transparent 1px) 0 0/100% 18px,linear-gradient(90deg,#e6ecf9 1px,transparent 1px) 0 0/18px 100%,#f3f6ff;border-bottom:1px solid var(--line);padding:10px}
.ot-thumb{display:block;width:100%;height:auto;max-height:150px}
.ot-card-body{display:flex;flex-direction:column;gap:6px;padding:14px 16px 16px;flex:1}
.ot-card-cat{font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--blue)}
.ot-card-name{font-size:20px;line-height:1.2;color:var(--navy)}
.ot-card-desc{font-size:15px;color:#33464f}
.ot-card-fmt{font-size:12px;color:var(--muted);letter-spacing:.04em}
.ot-card-go{margin-top:auto;padding-top:8px;font-weight:800;color:var(--blue)}
.ot-empty{padding:30px;border:2px dashed var(--navy);text-align:center}
.ot-band{background:var(--navy);color:#dfeeee;padding:clamp(20px,4vw,40px)}
.ot-band h2{color:var(--acid)}
.ot-band ul{margin:10px 0 0;padding-left:20px}
.ot-band a{color:var(--acid)}
@media (max-width:1000px){.ot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ot-split{grid-template-columns:minmax(0,1fr)}}
@media (max-width:700px){.ot-grid,.ot-grid2,.ot-links-cols{grid-template-columns:minmax(0,1fr)}.ot-grid3{grid-template-columns:1fr 1fr}.ot-filter{position:static}.ot-main{font-size:16px}.ot-seg span{padding:8px 11px}}
@media (max-width:420px){.ot-grid3{grid-template-columns:minmax(0,1fr)}}
@media (prefers-reduced-motion:reduce){.ot-card{transition:none}.ot-card:hover{transform:none}.ot-main *{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
@media print{.topline,.site-head,.foot,.ot-crumb,.ot-actions,.ot-filter,.ot-faq,.ot-links,.ot-cta,.ot-badges,.ot-demo,.skip{display:none!important}.ot-app{box-shadow:none;border:1px solid #000}.ot-out{background:#fff!important;color:#000!important;border:1px solid #000}.ot-out .ot-big{color:#000}.ot-out dt{color:#333}.ot-main{padding:0}}

.ot-split>*,.ot-grid2>*,.ot-links-cols>*{min-width:0}
.ot-out{overflow-wrap:anywhere}