:root{
  --navy:#0f2a4a;--navy-dark:#091b31;--navy-soft:#e7eef7;
  --red:#d81e05;--red-soft:#fdecea;--amber:#f2a900;--amber-soft:#fff5d6;
  --green:#1a7f4b;--green-soft:#e4f4ea;
  --ink:#172033;--ink-2:#4b5563;--ink-3:#6b7280;--line:#e3e8ef;--bg:#fff;--bg-2:#f6f8fb;
  --radius:4px;--shadow:0 1px 2px rgba(16,24,40,.06),0 8px 24px -12px rgba(16,24,40,.18);
  --font:'Noto Sans',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;--font-head:'Lato',var(--font);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:#1c4f8a;text-decoration:underline}
a:hover{color:var(--navy)}
.site-nav a,.btn,.brand,.module-list a,.footer-grid a,details.faq summary{text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-head);line-height:1.2;margin:0 0 .5em;font-weight:900;letter-spacing:0;color:var(--navy)}
h1{font-size:clamp(1.9rem,4vw,2.9rem)}h2{font-size:clamp(1.5rem,3vw,2.1rem)}h3{font-size:1.25rem}h4{font-size:1rem}
p{margin:0 0 1em}
ul,ol{padding-left:1.3em}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.section{padding:56px 0}
.section-tight{padding:32px 0}
.bg-2{background:var(--bg-2)}
.muted{color:var(--ink-3)}
.small{font-size:.875rem}
.tiny{font-size:.78rem}
.eyebrow{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.1em;font-size:.74rem;font-weight:700;color:var(--ink-2);margin-bottom:.6em}
.lead{font-size:1.15rem;color:var(--ink-2)}
.center{text-align:center}
hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;border-radius:4px;font-family:var(--font-head);padding:12px 22px;font-weight:700;font-size:1rem;border:2px solid transparent;cursor:pointer;font-family:inherit;line-height:1.2;transition:.15s;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:#b91804}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-dark)}
.btn-outline{background:#fff;color:var(--navy);border-color:var(--navy)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line)}
.btn-sm{padding:9px 16px;font-size:.9rem}
.btn-lg{padding:16px 30px;font-size:1.1rem}
.btn-block{display:flex;width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}

/* header */
.site-header{position:sticky;top:0;background:#fff;border-bottom:3px solid var(--navy);z-index:50}
.top-band{background:var(--navy);color:#dbe4ef;font-size:.74rem;letter-spacing:.02em;line-height:1.5;padding:5px 0}
.top-band .container{display:flex;justify-content:space-between}
.nav-row{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--navy)}
.brand:hover{text-decoration:none}
.wordmark{font-family:var(--font-head);font-size:1.3rem;letter-spacing:0;font-weight:900}
.wordmark b{color:var(--red)}
.site-nav{display:flex;align-items:center;gap:22px;white-space:nowrap}
.site-nav a{font-weight:600;color:var(--ink-2);font-size:.95rem}
.site-nav a:hover{color:var(--navy);text-decoration:none}
.site-nav .nav-cta{color:#fff}
.burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;align-items:center}
.burger span{display:block;width:22px;height:2px;background:var(--navy)}
@media(max-width:900px){
  .burger{display:flex}
  .site-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:12px 20px 20px;gap:4px}
  .site-nav.open{display:flex}
  .site-nav a{padding:10px 0;border-bottom:1px solid var(--line)}
  .site-nav .nav-cta{margin-top:10px;border:0}
}

/* hero */
.hero{background:var(--bg-2);border-bottom:1px solid var(--line);padding:56px 0 40px}
.hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:center}
.hero h1{margin-bottom:.4em}
.hero .lead{max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 14px}
.hero-note{font-size:.9rem;color:var(--ink-3)}
.check-list{list-style:none;padding:0;margin:18px 0}
.check-list li{padding-left:28px;position:relative;margin:8px 0}
.check-list li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:50%;background:var(--green-soft);border:2px solid var(--green)}
.check-list li::after{content:"";position:absolute;left:5px;top:10px;width:6px;height:9px;border-right:2px solid var(--green);border-bottom:2px solid var(--green);transform:rotate(45deg)}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr;gap:28px}}

/* certificate mock */
.cert-mock{background:#fff;border:1px solid var(--line);border-radius:4px;box-shadow:var(--shadow);padding:22px 24px;position:relative;aspect-ratio:1.414/1;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}
.cert-mock::before{content:"";position:absolute;inset:8px;border:2px solid var(--navy);border-radius:2px;pointer-events:none}
.cert-mock::after{content:"";position:absolute;left:8px;right:8px;top:8px;height:6px;background:var(--red)}
.cert-mock .cm-head{display:flex;align-items:center;justify-content:space-between;margin-top:8px}
.cert-mock .cm-title{font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);font-weight:700}
.cert-mock .cm-name{font-size:clamp(1.1rem,2.6vw,1.6rem);font-weight:800;color:var(--navy);margin:4px 0 2px}
.cert-mock .cm-course{font-weight:600;color:var(--ink-2);font-size:.9rem}
.cert-mock .cm-foot{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;font-size:.7rem;color:var(--ink-3)}
.cert-mock .cm-qr{width:54px;height:54px;flex:none}
.cert-mock .cm-stamp{position:absolute;right:26px;top:30%;width:70px;height:70px;border-radius:50%;border:3px solid var(--green);color:var(--green);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.6rem;text-align:center;line-height:1.1;transform:rotate(-12deg);opacity:.9}

/* cards & grids */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid-3,.grid-2,.grid-4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card h3{margin-top:.2em}
.step-num{width:36px;height:36px;border-radius:4px;font-family:var(--font-head);background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:12px}
.callout{background:var(--amber-soft);border-left:6px solid var(--amber);padding:14px 18px;border-radius:0;margin:20px 0}
.callout-blue{background:var(--navy-soft);border-left-color:var(--navy)}
.callout-red{background:var(--red-soft);border-left-color:var(--red)}
.callout-green{background:var(--green-soft);border-left-color:var(--green)}
.callout p:last-child{margin:0}

/* pricing */
.price-box{border:2px solid var(--navy);border-radius:4px;padding:28px;background:#fff;box-shadow:var(--shadow)}
.price-big{font-size:2.6rem;font-weight:800;color:var(--navy);line-height:1}
.price-big small{font-size:1rem;color:var(--ink-3);font-weight:600}
.price-row{display:flex;align-items:baseline;gap:10px;margin:8px 0 14px}
.compare-table{width:100%;border-collapse:collapse;font-size:.95rem}
.compare-table th,.compare-table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.compare-table th{font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-3)}
.compare-table td.yes{color:var(--green);font-weight:700}
.compare-table td.no{color:var(--ink-3)}

/* faq */
details.faq{border-bottom:1px solid var(--line);padding:4px 0}
details.faq summary{cursor:pointer;font-weight:700;padding:14px 0;list-style:none;position:relative;padding-right:30px;color:var(--navy)}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";position:absolute;right:4px;top:10px;font-size:1.4rem;color:var(--ink-3)}
details.faq[open] summary::after{content:"–"}
details.faq p{color:var(--ink-2)}

/* forms */
.form{display:grid;gap:14px}
.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1.5px solid #8a94a3;border-radius:4px;font:inherit;font-size:1rem;background:#fff}
.field input:focus,.field select:focus{outline:2px solid var(--navy);outline-offset:1px;border-color:var(--navy)}
.field .hint{font-size:.8rem;color:var(--ink-3);margin-top:4px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:var(--ink-2)}
.check input{margin-top:4px;width:18px;height:18px;flex:none}
.form-error{color:var(--red);font-weight:600;font-size:.9rem;display:none}
.form-error.show{display:block}
.form-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:600px){.form-2{grid-template-columns:1fr}}

/* course layout */
.course-wrap{display:grid;grid-template-columns:290px 1fr;gap:40px;max-width:1120px;margin:0 auto;padding:32px 20px 64px}
.course-side-inner{position:sticky;top:86px}
.module-list{list-style:none;padding:0;margin:0 0 18px}
.module-list li a{display:flex;gap:10px;align-items:flex-start;padding:9px 10px;border-radius:8px;color:var(--ink-2);font-size:.9rem;font-weight:500;line-height:1.35}
.module-list li a:hover{background:var(--bg-2);text-decoration:none}
.module-list li.active a{background:var(--navy-soft);color:var(--navy);font-weight:700}
.mnum{flex:none;width:22px;height:22px;border-radius:50%;border:2px solid #cfd6e0;font-size:.72rem;font-weight:800;display:flex;align-items:center;justify-content:center;color:var(--ink-3);margin-top:1px}
.module-list li.done .mnum{background:var(--green);border-color:var(--green);color:#fff}
.module-list li.done .mnum::before{content:"✓"}
.module-list li.done .mnum span{display:none}
.course-main{max-width:760px;min-width:0}
.course-main h1{font-size:clamp(1.6rem,3vw,2.3rem)}
.course-main h2{font-size:1.45rem;margin-top:1.8em}
.course-main h3{font-size:1.1rem;margin-top:1.4em}
.course-main p,.course-main li{color:var(--ink);font-size:1.02rem}
.module-meta{display:flex;gap:16px;font-size:.85rem;color:var(--ink-3);margin-bottom:20px}
.scenario{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin:20px 0}
.scenario .eyebrow{color:var(--navy)}
.keypoints{background:var(--navy-soft);border-radius:12px;padding:18px 22px;margin:28px 0}
.keypoints h3{margin-top:0}
.keypoints ul{margin:0}
.picto-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px;margin:18px 0}
.picto{border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;gap:12px;align-items:flex-start}
.picto img{width:64px;height:64px;flex:none}
.picto h4{margin:0 0 3px;font-size:.95rem}
.picto p{margin:0;font-size:.85rem;color:var(--ink-2)}
.label-demo{border:2px solid var(--navy);border-radius:8px;padding:14px 16px;background:#fff;display:grid;grid-template-columns:1fr auto;gap:12px;margin:18px 0;font-size:.9rem}
.label-demo .ld-title{font-weight:800;font-size:1.05rem;color:var(--navy)}
.label-demo .ld-signal{font-weight:800;color:var(--red);font-size:1rem;letter-spacing:.05em}
.label-demo .ld-pictos{display:flex;gap:6px}
.label-demo .ld-pictos img{width:46px;height:46px}
.label-demo .ld-annot{font-size:.75rem;color:var(--red);font-weight:700}
.sds-table{width:100%;border-collapse:collapse;font-size:.9rem;margin:14px 0}
.sds-table td,.sds-table th{border:1px solid var(--line);padding:8px 10px;vertical-align:top}
.sds-table th{background:var(--bg-2);width:44px;text-align:center}
.sds-table tr.hot td{background:var(--amber-soft)}
.kc{border:2px solid var(--navy);border-radius:12px;padding:18px 20px;margin:28px 0;background:#fff}
.kc .eyebrow{color:var(--navy)}
.kc .q{font-weight:700;margin-bottom:10px}
.kc label{display:flex;gap:10px;align-items:flex-start;padding:8px 10px;border-radius:8px;cursor:pointer;border:1px solid var(--line);margin-bottom:8px}
.kc label:hover{background:var(--bg-2)}
.kc input{margin-top:3px}
.kc .fb{display:none;margin-top:8px;padding:10px 12px;border-radius:8px;font-size:.92rem}
.kc.ok .fb-ok{display:block;background:var(--green-soft);color:var(--green)}
.kc.bad .fb-bad{display:block;background:var(--red-soft);color:var(--red)}
.module-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);flex-wrap:wrap}
@media(max-width:860px){
  .course-wrap{grid-template-columns:1fr;gap:20px;padding-top:16px}
  .course-side-inner{position:static}
  .course-side{order:2}
  .course-main{order:1}
  .module-list{display:none}
  .course-side.open .module-list{display:block}
}

/* exam */
.exam-q{border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:16px;background:#fff}
.exam-q .qn{font-size:.78rem;color:var(--ink-3);font-weight:700;text-transform:uppercase;letter-spacing:.06em}
.exam-q .qt{font-weight:700;margin:4px 0 10px;font-size:1.02rem}
.exam-q label{display:flex;gap:10px;align-items:flex-start;padding:9px 12px;border:1px solid var(--line);border-radius:8px;margin-bottom:8px;cursor:pointer}
.exam-q label:hover{background:var(--bg-2)}
.exam-q input{margin-top:3px}
.exam-q.unanswered{border-color:var(--red)}
.exam-bar{position:sticky;bottom:0;background:#fff;border-top:1px solid var(--line);padding:12px 0;margin-top:20px}
.exam-bar .container{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.score-ring{width:140px;height:140px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-direction:column;margin:0 auto 18px;font-weight:800;color:#fff}
.score-ring.pass{background:var(--green)}.score-ring.fail{background:var(--red)}
.score-ring b{font-size:2.2rem;line-height:1}.score-ring span{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em}
.hidden{display:none!important}

/* verify */
.verify-result{border:2px solid var(--green);border-radius:14px;padding:22px;background:var(--green-soft)}
.verify-result.invalid{border-color:var(--red);background:var(--red-soft)}
.verify-result dl{display:grid;grid-template-columns:140px 1fr;gap:6px 14px;margin:0}
.verify-result dt{color:var(--ink-3);font-size:.85rem;font-weight:600}
.verify-result dd{margin:0;font-weight:600}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}
.badge-green{background:var(--green);color:#fff}.badge-grey{background:#d1d5db;color:#374151}.badge-amber{background:var(--amber);color:#1f1300}

/* footer */
.site-footer{background:var(--navy-dark);color:#cbd5e1;margin-top:64px;padding:48px 0 24px;border-top:6px solid var(--red)}
.site-footer a{color:#e2e8f0}
.site-footer .brand{color:#fff}
.site-footer .wordmark{color:#fff}
.site-footer h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}
.site-footer .muted{color:#94a3b8}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-grid div a{display:block;margin:6px 0;font-size:.92rem}
.footer-bottom{border-top:1px solid #1e3a5f;margin-top:32px;padding-top:18px}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}

/* landing pages */
.lp-header{position:static}
.lp-hero{padding:48px 0 32px;background:linear-gradient(180deg,var(--navy-soft),#fff 80%)}
.lp-hero h1{font-size:clamp(1.8rem,4vw,2.6rem)}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:.88rem;color:var(--ink-2);margin-top:16px}
.trust-row span::before{content:"✓ ";color:var(--green);font-weight:800}

/* print */
@media print{.site-header,.site-footer,.course-side,.exam-bar,.no-print{display:none!important}}

/* mobile overflow guards */
.hero-grid>div,.grid-2>*,.grid-3>*,.grid-4>*{min-width:0}
@media(max-width:600px){.btn{white-space:normal;text-align:center}.hero-cta .btn{width:100%}.cert-mock{aspect-ratio:auto;gap:14px}.cm-stamp{display:none}}

/* institutional touches */
.section h2,.course-main h2{padding-bottom:6px;border-bottom:2px solid var(--line)}
.card{border-radius:4px;border-top:4px solid var(--navy)}
.picto,.scenario,.keypoints,.kc,.exam-q,.verify-result,.label-demo{border-radius:4px}
.hero .lead,.lead{font-family:var(--font);}