:root{--grey:#808285;--red:#D91E37;--navy:#213368;--blue:#009FE3;--white:#fff;--ink:#20252b;--pale:#f4f6f8;--line:#d9dde2;--green:#1f7a4d;--amber:#b86a00}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--pale);color:var(--ink);line-height:1.48}button,input{font:inherit}.topbar{height:8px;background:linear-gradient(90deg,var(--red) 0 35%,var(--blue) 35% 65%,var(--navy) 65%)}.wrap{max-width:960px;margin:0 auto;padding:0 18px}.header{background:var(--navy);color:#fff}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0}.brand{font-weight:700;letter-spacing:.2px;font-size:30px}.badge{background:#fff;color:var(--navy);padding:7px 10px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap}.hero{background:#fff;padding:28px 0 23px;border-bottom:1px solid var(--line)}h1{font-size:31px;line-height:1.12;margin:0 0 10px;color:var(--navy)}h2{font-size:22px;color:var(--navy);margin:0 0 10px}h3{font-size:17px;color:var(--navy);margin:0 0 8px}.intro{font-size:17px;max-width:760px;margin:0}.meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.pill{border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 9px;font-size:12px}.section{padding:20px 0}.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;box-shadow:0 2px 8px rgba(33,51,104,.05)}.knowledge{display:grid;grid-template-columns:1fr 1fr;gap:10px 28px;margin:0;padding-left:20px}.knowledge li{margin:7px 0}.alert{border-left:5px solid var(--red);background:#fff5f6;padding:13px 14px;border-radius:8px;margin-top:15px}.alert.blue{border-left-color:var(--blue);background:#f0faff}.alert.good{border-left-color:var(--green);background:#f2faf6}.alert.warn{border-left-color:var(--amber);background:#fff9ed}.device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.device-card{display:flex;flex-direction:column}.device-photo,.device-svg{width:100%;height:270px;object-fit:contain;border-radius:9px;background:#fafafa;border:1px solid var(--line);padding:8px}.device-photo{object-fit:contain}.caption{font-size:12px;color:#646a70;margin-top:7px}.source-note{font-size:11px;color:#777;margin-top:5px}.feature-list{margin:0;padding-left:20px}.feature-list li{margin:7px 0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field label{display:block;font-weight:700;font-size:13px;margin-bottom:5px}.field input{width:100%;padding:11px 12px;border:1px solid #bfc5cc;border-radius:7px;background:#fff}.quiz-item{padding:15px 0;border-top:1px solid var(--line)}.quiz-item:first-child{border-top:0}.q{font-weight:700;margin-bottom:9px}.option{display:block;padding:9px 10px;margin:6px 0;border:1px solid var(--line);border-radius:7px;cursor:pointer;background:#fff}.option:hover{border-color:var(--blue)}.option input{margin-right:8px}.ack{display:flex;gap:10px;align-items:flex-start;margin-top:16px;font-size:14px}.ack input{margin-top:4px}.btn{border:0;border-radius:8px;padding:12px 18px;font-weight:700;cursor:pointer}.btn-primary{background:var(--red);color:#fff}.btn-primary:hover{filter:brightness(.94)}.btn-secondary{background:var(--navy);color:#fff}.btn-light{background:#fff;color:var(--navy);border:1px solid var(--navy)}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.result{display:none;margin-top:18px}.result.show{display:block}.score{font-size:34px;font-weight:700;color:var(--navy)}.small{font-size:12px;color:#666}.footer{background:var(--navy);color:#fff;margin-top:25px;padding:18px 0;font-size:12px}.lock{min-height:72vh;display:grid;place-items:center}.lock-card{max-width:430px;width:100%;text-align:center}.lock-card .brand-lock{font-size:22px;font-weight:700;color:var(--navy);margin-bottom:6px}.error{color:var(--red);font-size:13px;margin-top:8px;display:none}.error.show{display:block}.certificate{display:none}.certificate-wrap{max-width:900px;margin:25px auto;padding:0 18px}.certificate-sheet{background:#fff;border:8px solid var(--navy);outline:3px solid var(--red);outline-offset:-16px;padding:55px 55px 45px;min-height:720px;text-align:center;position:relative}.certificate-sheet:before{content:"";position:absolute;top:0;left:0;right:0;height:7px;background:linear-gradient(90deg,var(--red) 0 35%,var(--blue) 35% 65%,var(--navy) 65%)}.certificate-logo{font-size:25px;font-weight:700;color:var(--navy);margin-bottom:8px}.certificate-title{font-size:30px;color:var(--navy);margin:25px 0 10px}.certificate-subtitle{font-size:16px;color:var(--grey)}.certificate-name{font-size:28px;font-weight:700;margin:28px 0 10px;color:var(--red)}.certificate-rule{height:1px;background:var(--line);margin:20px auto;max-width:620px}.certificate-table{margin:0 auto;text-align:left;max-width:600px;width:100%;font-size:14px}.certificate-table div{display:flex;border-bottom:1px solid #eee;padding:8px 0}.certificate-table strong{width:190px;color:var(--navy)}.certificate-result{margin:25px auto;padding:14px;border-radius:8px;background:#f2faf6;color:var(--green);font-weight:700;max-width:600px}.certificate-foot{position:absolute;left:55px;right:55px;bottom:30px;font-size:11px;color:#777}.print-actions{max-width:900px;margin:18px auto 30px;padding:0 18px;display:flex;gap:10px;justify-content:center}.print-actions .btn{min-width:180px}.hidden{display:none!important}
@media(max-width:680px){.brand{font-size:25px}h1{font-size:27px}.device-grid,.form-grid,.knowledge{grid-template-columns:1fr}.header-inner{align-items:flex-start}.badge{font-size:11px}.device-photo,.device-svg{height:230px}.card{padding:15px}.section{padding:16px 0}.wrap{padding:0 14px}.btn{width:100%}.actions{display:grid}.certificate-sheet{padding:45px 25px 70px;min-height:650px}.certificate-title{font-size:25px}.certificate-name{font-size:23px}.certificate-table div{display:block}.certificate-table strong{display:block;width:auto;margin-bottom:3px}.certificate-foot{left:25px;right:25px}}
@media print{body{background:#fff}.no-print,.topbar,.header,.footer,.hero,.training-content,.print-actions{display:none!important}.certificate{display:block!important}.certificate-wrap{margin:0;padding:0;max-width:none}.certificate-sheet{box-shadow:none;min-height:0;height:270mm;border:8px solid var(--navy);outline:3px solid var(--red);outline-offset:-16px}.certificate-foot{bottom:25px}}