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.6rem;border-radius:var(--radius,8px);color:var(--text-muted);text-decoration:none;font-size:.9rem;line-height:1.35}.rail-current>.rail-item,a.rail-item:hover{background:var(--surface-raised);color:var(--text)}.rail-current>.rail-item{font-weight:500}.rail-done>.rail-item{color:var(--text-muted)}.rail-locked{opacity:.45;cursor:default}.rail-index{display:inline-block;min-width:1.2em;color:var(--text-faint);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.rail-text{flex:1 1}.rail-mark{flex:none;width:16px;height:16px;margin-top:.15rem;border-radius:50%;border:1.5px solid var(--border-strong);display:grid;place-items:center;font-size:.6rem;line-height:1}.rail-mark-done{background:var(--success);border-color:var(--success);color:#0b0b0b}.rail-mark-current{border-color:var(--accent);box-shadow:inset 0 0 0 3px var(--accent)}.rail-pages{margin:.1rem 0 .5rem 2.1rem;border-left:1px solid var(--border)}.rail-page{display:block;width:100%;text-align:left;background:none;padding:.3rem .6rem;font-size:.82rem;color:var(--text-faint);cursor:pointer;border:none;border-left:2px solid transparent;margin-left:-1px;min-height:0}.rail-page:hover{color:var(--text)}.rail-page-done{color:var(--text-muted)}.rail-page-current{color:var(--text);border-left-color:var(--accent)}.player-scrim{display:none}.player-content{max-width:68ch;padding:2.5rem 1.5rem 4rem;margin:0 auto;width:100%}.player-module-index{margin:0 0 .4rem;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text-faint)}.player-title{margin:0 0 .5rem;font-size:clamp(1.5rem,3.5vw,2rem);line-height:1.2}.player-summary{margin:0 0 2rem;color:var(--text-muted)}.player-content .prose{font-size:1.05rem;line-height:1.75;margin-bottom:1.5rem}.player-content .prose p{margin:0 0 1.1rem}.player-content .prose p:last-child{margin-bottom:0}.player-content .prose ol,.player-content .prose ul{margin:0 0 1.1rem;padding-left:1.4rem}.player-content .prose li{margin-bottom:.4rem}.player-content .prose blockquote{margin:0 0 1.3rem;padding:.9rem 1.1rem;border:1px solid var(--border);border-left:3px solid var(--border-strong);border-radius:var(--radius,8px);background:var(--surface);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.88rem;line-height:1.6;color:var(--text-muted);overflow-x:auto}.player-content .callout{margin-bottom:1.6rem;font-size:1.02rem;line-height:1.7}.player-actions{display:flex;gap:.6rem;margin-top:2rem;flex-wrap:wrap}.check{position:relative;margin:2rem 0;padding:1.25rem;border:1px solid var(--border);border-radius:var(--radius,10px);background:var(--surface);transition:border-color .25s ease}.check-right{border-color:var(--success)}.check-wrong{border-color:var(--border-strong)}.check-label{margin:0 0 .6rem;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-faint)}.check-fieldset{border:none;margin:0;padding:0}.check-prompt{padding:0;margin-bottom:.9rem;font-weight:500;line-height:1.5}.check-options{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1rem}.check .option{position:relative}.check-feedback{margin-top:1rem;padding-top:.9rem;border-top:1px solid var(--border);animation:check-reveal .28s ease both}.check-feedback p{margin:.4rem 0 0;color:var(--text-muted);line-height:1.6}@keyframes check-reveal{0%{opacity:0;transform:translateY(-4px)}}.tick{width:18px;height:18px;flex:none;margin-left:auto;stroke:var(--success);stroke-dasharray:30;stroke-dashoffset:30;animation:tick-draw .22s ease-out .04s forwards}@keyframes tick-draw{to{stroke-dashoffset:0}}.celebrate{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:2}.quiz-question{border:none;padding:0;margin:0 0 1.75rem}.quiz-question legend{padding:0;margin-bottom:.6rem;line-height:1.5}.recap{text-align:center;padding:1.75rem 1.25rem;margin-bottom:2rem;border:1px solid var(--border);border-radius:var(--radius,10px);background:var(--surface)}.recap-pass{border-color:var(--success)}.recap-score{margin:0;font-size:3rem;font-weight:600;line-height:1;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.recap-pass .recap-score{color:var(--success)}.recap-verdict{margin:.5rem 0 0;color:var(--text-muted)}.recap-course{margin-top:1.25rem;padding-top:1.25rem;border-top:1px solid var(--border)}.recap-course p{margin:0 0 .75rem}@media (max-width:860px){.player-body{grid-template-columns:1fr}.rail{position:fixed;top:57px;bottom:0;left:0;width:min(310px,84vw);max-height:none;background:var(--surface);border-right:1px solid var(--border);transform:translateX(-100%);transition:transform .22s ease;z-index:30}[data-rail-open=true] .rail{transform:translateX(0)}[data-rail-open=true] .player-scrim{display:block;position:fixed;inset:57px 0 0;background:rgba(0,0,0,.55);border:none;z-index:25}.player-content{padding:1.75rem 1.1rem 3rem}.player-exit-text{display:none}.player-actions{position:-webkit-sticky;position:sticky;bottom:0;background:linear-gradient(to top,var(--bg) 65%,transparent);padding:1rem 0 .75rem;margin-top:1.5rem}.player-actions .btn{flex:1 1;min-height:46px}}@media (prefers-reduced-motion:reduce){.check-feedback,.player-fill,.rail,.tick{animation:none!important;transition:none!important}.tick{stroke-dashoffset:0}}.learn,.player-body{--bg:#faf7f1;--surface:#ffffff;--surface-raised:#f3ede2;--border:#e7ded0;--border-strong:#d3c6b2;--text:#1b1712;--text-muted:#5c5347;--text-faint:#8b8174;--accent:#8a6508;--accent-strong:#6d5006;--accent-deep:#573f05;--accent-dim:#f5e9c9;--on-accent:#ffffff;--success:#1c7a4b;--danger:#b3382c;background:var(--bg);color:var(--text)}.learn{min-height:calc(100vh - 57px)}.learn .card,.learn .stat,.player-body .card{background:var(--surface);border-color:var(--border);box-shadow:0 1px 2px rgba(27,23,18,.05),0 1px 8px rgba(27,23,18,.04)}.learn .alert-success,.player-body .alert-success{background:#e8f5ee;border-color:var(--success);color:#14452c}.learn .alert-error,.player-body .alert-error{background:#fbeceb;border-color:var(--danger);color:#6b1f18}.learn .alert-warning,.player-body .alert-warning{background:var(--accent-dim);border-color:#d9be6a;color:#4a3a12}.learn .alert-info,.player-body .alert-info{background:var(--surface-raised);color:var(--text)}.learn .badge{background:var(--surface-raised);color:var(--text-muted);border-color:var(--border)}.learn .btn-secondary,.player-body .btn-secondary{background:var(--surface);color:var(--text);border-color:var(--border-strong)}.learn .progress,.player-body .progress{background:var(--surface-raised)}.course-card{position:relative;overflow:hidden;padding-left:1.35rem}.course-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--subject,var(--accent))}.course-card[data-category=PHISHING]{--subject:#2f6fd0}.course-card[data-category=PASSWORDS]{--subject:#7a4fc4}.course-card[data-category=PHYSICAL_SECURITY]{--subject:#c2761b}.course-card[data-category=SOCIAL_ENGINEERING]{--subject:#c0453a}.course-card[data-category=FRAUD]{--subject:#1c7a4b}.course-card[data-category=DATA_PROTECTION]{--subject:#0f7f8c}.course-card .badge-subject{background:var(--subject,var(--accent));color:#ffffff;border-color:transparent}.player-body .rail{background:var(--surface);border-right-color:var(--border)}.player-body .rail-current>.rail-item,.player-body a.rail-item:hover{background:var(--surface-raised)}.player-body .check{background:var(--surface)}.player-body .prose blockquote{background:#fbf8f3;border-color:var(--border);border-left-color:var(--border-strong);color:#3d362d}.player-body .callout{background:var(--accent-dim);border-color:#e2cf9a;color:#3b3121}.player-body .option{background:var(--surface);border-color:var(--border)}.player-body .option-selected{border-color:var(--accent);background:var(--accent-dim)}.player-body .option-correct{border-color:var(--success);background:#e8f5ee}.player-body .option-wrong{border-color:var(--danger);background:#fbeceb}.player-body .recap{background:var(--surface)}@media (max-width:860px){.player-body .player-actions{background:linear-gradient(to top,var(--bg) 65%,transparent)}}