:root{--bg:#f7f7fb;--card:#fff;--text:#202124;--muted:#5f6368;--brand:#3b4cca;--brand-dark:#26358c;--good:#0f7b3f;--bad:#b3261e;--line:#d9dbe7;--soft:#eef0ff;--warn:#fff4dc;--warn-border:#f4d28a}*{box-sizing:border-box}html,body{margin:0;padding:0}body{color:var(--text);background:linear-gradient(180deg, #ecefff 0%, var(--bg) 320px);font-family:Arial,Helvetica,sans-serif;line-height:1.45}body.quiz-locked,body.quiz-locked .q-title,body.quiz-locked .option span{-webkit-user-select:none;user-select:none}input,textarea{-webkit-user-select:text;user-select:text}a{color:var(--brand-dark)}.container{width:min(1100px,100% - 32px);margin:0 auto}header{padding:34px 0 22px}.hero{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:0 16px 45px #26358c1a}.eyebrow{color:var(--brand-dark);letter-spacing:.08em;text-transform:uppercase;font-size:12px;font-weight:700}h1{margin:8px 0 10px;font-size:clamp(28px,4vw,46px);line-height:1.05}h2{margin:0 0 12px;font-size:24px}h3{margin:0 0 8px;font-size:18px}p{margin:8px 0}.muted{color:var(--muted)}.small{font-size:13px}.nowrap{white-space:nowrap}.grid{gap:16px;display:grid}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;margin-bottom:18px;padding:22px;box-shadow:0 8px 28px #19235a0d}.pill-row{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.pill{border:1px solid var(--line);color:var(--muted);background:#fff;border-radius:999px;padding:8px 12px;font-size:13px;font-weight:700}label{margin:12px 0 6px;font-weight:700;display:block}input,select,textarea{border:1px solid var(--line);width:100%;color:var(--text);background:#fff;border-radius:10px;padding:11px 12px;font-family:inherit;font-size:15px}input:focus,select:focus,textarea:focus{border-color:var(--brand);outline:3px solid #3b4cca2e}.btn-row{flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;display:flex}button,.button{appearance:none;background:var(--brand);color:#fff;cursor:pointer;border:0;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:12px 16px;font-family:inherit;font-size:15px;font-weight:800;text-decoration:none;display:inline-flex}button.secondary{color:var(--brand-dark);background:#eef0ff;border:1px solid #cbd0ff}button.ghost{color:var(--brand-dark);border:1px solid var(--line);background:#fff}button.danger{color:var(--bad);background:#fde8e6;border:1px solid #fac5c0}button:disabled{opacity:.55;cursor:not-allowed}details summary{cursor:pointer;color:var(--brand-dark);font-weight:800}.notice{background:var(--warn);border:1px solid var(--warn-border);color:#6b4b00;border-radius:14px;margin-top:12px;padding:12px 14px}.notice.integrity{color:#7a271a;background:#fff5f4;border-color:#f0b6b1}.attestation{border:1px solid var(--line);background:#fff;border-radius:14px;align-items:flex-start;gap:10px;padding:12px;font-weight:600;display:flex}.attestation input{width:auto;margin-top:3px}.progress-wrap{z-index:20;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#f7f7fbeb;border-bottom:1px solid #d9dbe7bf;padding:10px 0;position:sticky;top:0}.progress-label{color:var(--muted);justify-content:space-between;margin-bottom:6px;font-size:13px;font-weight:700;display:flex}.progress-bar{background:#e7e8f2;border-radius:999px;height:10px;overflow:hidden}.progress-fill{background:var(--brand);border-radius:inherit;width:0%;height:100%;transition:width .2s}.quiz-card{border-left:5px solid #cbd0ff}.q-title{margin-bottom:10px;font-weight:800}.option{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:12px;align-items:flex-start;gap:10px;margin:8px 0;padding:10px;display:flex}.option:hover{background:#f9faff}.option.selected{border-color:var(--brand);background:#f4f6ff}.option input{width:auto;margin-top:3px}.hidden{display:none!important}.score-box{background:var(--soft);border:1px solid #cbd0ff;border-radius:18px;grid-template-columns:1fr auto;align-items:center;gap:14px;padding:22px;display:grid}.score-number{color:var(--brand-dark);text-align:right;font-size:48px;font-weight:900}.pass{color:var(--good);font-weight:900}.fail{color:var(--bad);font-weight:900}.review-item{border:1px solid var(--line);border-radius:14px;margin:10px 0;padding:12px}.review-item.correct{background:#f0fff5;border-color:#a7d9bb}.review-item.incorrect{background:#fff5f4;border-color:#f0b6b1}.review-label{font-weight:800}.certificate-card{outline-offset:-18px;text-align:center;color:#1f2430;background:#fff;border:10px double #26358c;border-radius:8px;outline:2px solid #d7b66d;flex-direction:column;justify-content:center;gap:10px;max-width:980px;min-height:650px;margin:0 auto;padding:56px 48px;display:flex}.cert-eyebrow{letter-spacing:.15em;text-transform:uppercase;color:#26358c;font-weight:900}.cert-title{color:#26358c;margin:4px 0;font-family:Georgia,Times New Roman,serif;font-size:clamp(36px,6vw,64px)}.cert-name{border-bottom:2px solid #d7b66d;margin:12px 0;padding:0 28px 8px;font-family:Georgia,Times New Roman,serif;font-size:clamp(30px,5vw,52px);font-weight:700;display:inline-block}.cert-meta{text-align:left;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px;display:grid}.cert-meta div{border-top:1px solid #cfd2dc;padding-top:8px;font-size:13px}.cert-meta strong{color:#26358c;font-size:14px;display:block}footer{color:var(--muted);padding:28px 0 44px;font-size:13px}@media (max-width:760px){.grid.two,.grid.three,.score-box{grid-template-columns:1fr}.score-number{text-align:left}.cert-meta{grid-template-columns:1fr}.hero,.card{padding:18px}.certificate-card{outline-offset:-10px;padding:36px 22px}}@media print{body{background:#fff}body *{visibility:hidden}#certificateSection,#certificateSection *{visibility:visible}#certificateSection{width:100%;margin:0;padding:0;position:absolute;top:0;left:0}#certificateSection .card{box-shadow:none;border:0;margin:0;padding:0}.no-print,.btn-row,#certificateNote{display:none!important}.certificate-card{page-break-inside:avoid;border-radius:0;width:100%;min-height:95vh}}