:root{--bg:#f6f7f9;--surface:#fff;--surface-2:#f0f2f5;--text:#1a1d21;--muted:#5b6573;--border:#d9dee4;--primary:#4f46e5;--primary-text:#fff;--correct-bg:#e6f6ec;--correct-border:#34a853;--correct-text:#11643a;--wrong-bg:#fdecec;--wrong-border:#e0463e;--wrong-text:#8a1c16;--radius:10px;--shadow:0 1px 3px #00000014}html[data-theme=dark]{--bg:#0f1216;--surface:#181c22;--surface-2:#20262e;--text:#e7ebf0;--muted:#9aa6b2;--border:#2c343d;--primary:#4f46e5;--primary-text:#fff;--correct-bg:#10301f;--correct-border:#2f8f57;--correct-text:#7fe0a6;--wrong-bg:#3a1714;--wrong-border:#c0473f;--wrong-text:#f0a9a3;--shadow:0 1px 3px #0006}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}a{color:inherit}.container{max-width:820px;margin:0 auto;padding:1.25rem}.nav{background:var(--surface);border-bottom:1px solid var(--border);z-index:10;align-items:center;gap:1rem;padding:.6rem 1.25rem;display:flex;position:sticky;top:0}.nav .brand{letter-spacing:-.01em;font-weight:700}.nav .spacer{flex:1}.nav a{color:var(--muted);border-radius:8px;padding:.3rem .55rem;font-weight:500;text-decoration:none}.nav a.active,.nav a:hover{color:var(--text);background:var(--surface-2)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:1rem;padding:1.25rem}h1{margin:.2rem 0 1rem;font-size:1.5rem}h2{margin:0 0 .75rem;font-size:1.15rem}.muted{color:var(--muted)}label{margin:.75rem 0 .3rem;font-size:.9rem;font-weight:600;display:block}input:not([type=checkbox]):not([type=radio]),select,textarea{border:1px solid var(--border);background:var(--surface);width:100%;color:var(--text);border-radius:8px;padding:.6rem .7rem;font-size:1rem}:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}html[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239aa6b2' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-position:right .7rem center;background-repeat:no-repeat;background-size:.7rem;border-radius:0;padding-right:2rem}input:not([type=checkbox]):not([type=radio]):focus-visible,textarea:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:1px;border-color:var(--primary)}select:focus,select:focus-visible{outline:none}.row{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.chips{flex-wrap:wrap;gap:.4rem;display:flex}.chip{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:999px;padding:.45rem .8rem;font-size:.92rem}.chip.active{background:var(--primary);border-color:var(--primary);color:var(--primary-text);font-weight:600}button{font:inherit;cursor:pointer;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:8px;padding:.55rem .95rem}button:hover{background:var(--surface-2)}button.primary{background:var(--primary);border-color:var(--primary);color:var(--primary-text);font-weight:600}button.primary:hover{filter:brightness(.96)}button:disabled{opacity:.5;cursor:not-allowed}.option{text-align:left;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);width:100%;margin:.45rem 0;padding:.7rem .85rem;display:block}.option:hover{background:var(--surface-2)}.option.selected{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary) inset}.option.correct{background:var(--correct-bg);border-color:var(--correct-border);color:var(--correct-text)}.option.wrong{background:var(--wrong-bg);border-color:var(--wrong-border);color:var(--wrong-text)}.option .expl{color:var(--muted);margin-top:.4rem;font-size:.88rem;display:block}.banner{border-radius:var(--radius);margin:.75rem 0;padding:.7rem .9rem}.banner.ok{background:var(--correct-bg);border:1px solid var(--correct-border);color:var(--correct-text)}.banner.bad{background:var(--wrong-bg);border:1px solid var(--wrong-border);color:var(--wrong-text)}.banner.info{background:var(--surface-2);border:1px solid var(--border);color:var(--muted)}.center{place-items:center;min-height:60vh;display:grid}.stem{white-space:pre-wrap;margin:.5rem 0 1rem;font-size:1.05rem}.q-img{border:1px solid var(--border);background:#fff;border-radius:6px;max-width:100%;height:auto;margin:.5rem 0;display:block}.nav{flex-wrap:wrap;row-gap:.4rem}.brand-link{text-decoration:none}.cert-select{background-position:right .6rem center;width:auto;padding:.35rem 1.7rem .35rem .6rem;font-size:.9rem}.cert-picker{align-items:center;gap:.4rem;margin:0;font-weight:500;display:inline-flex}.cert-label{color:var(--muted);white-space:nowrap;font-size:.85rem}.glossary-search{border-radius:0}.glossary-cat{width:auto}.goto{align-items:center;gap:.4rem;font-size:.9rem;display:inline-flex}.goto input[type=number]{-moz-appearance:textfield;width:6rem;padding:.35rem .5rem;font-size:.9rem}.goto input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.goto input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.goto button{padding:.35rem .7rem;font-size:.9rem}.link-btn{color:var(--primary);cursor:pointer;background:0 0;border:none;padding:.3rem 0;font-size:.9rem;text-decoration:underline}.link-btn:hover{filter:brightness(.9);background:0 0}.more-btn{color:var(--primary);border:1px solid var(--primary);cursor:pointer;background:0 0;border-radius:8px;margin-top:.6rem;padding:.3rem .75rem;font-size:.8rem;font-weight:500;display:inline-flex}.more-btn:hover{background:var(--primary);color:var(--primary-text)}.hero{color:#e7ebf0;border-radius:var(--radius);background:#11151b;border:1px solid #2c343d;margin-bottom:1.25rem;padding:1.25rem 1.4rem}.hero-title{margin-bottom:.9rem;font-weight:700}.hero-row{flex-wrap:wrap;gap:1.5rem;display:flex}.hero-item{min-width:110px}.hero-label{text-transform:uppercase;letter-spacing:.04em;color:#9aa6b2;font-size:.72rem}.hero-value{font-size:1.6rem;font-weight:700}.hero-value.accent{color:#34d399}.section-label{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:1.25rem 0 .6rem;font-size:.78rem;font-weight:700}.grid-2{grid-template-columns:1fr 1fr;gap:1rem;display:grid}@media (width<=640px){.grid-2{grid-template-columns:1fr}}.grid-2>.card{flex-direction:column;display:flex}.grid-2>.card>a:last-child{margin-top:auto}.metrics{grid-template-columns:repeat(4,1fr);gap:.8rem;display:grid}@media (width<=720px){.metrics{grid-template-columns:1fr 1fr}}.metric{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:.9rem}.metric .v{font-size:1.5rem;font-weight:700}.metric .l{color:var(--muted);font-size:.8rem}.tabs{border-bottom:1px solid var(--border);gap:.4rem;margin-bottom:1rem;display:flex}.tab{color:var(--muted);background:0 0;border:none;border-bottom:2px solid #0000;border-radius:0;padding:.5rem .8rem}.tab.active{color:var(--text);border-bottom-color:var(--primary);font-weight:600}.flip{text-align:center;cursor:pointer;place-items:center;min-height:220px;font-size:1.15rem;display:grid}.bar-row{grid-template-columns:170px 1fr 52px;align-items:center;gap:.6rem;margin:.4rem 0;font-size:.9rem;display:grid}.bar-track{background:var(--surface-2);border-radius:999px;height:10px;overflow:hidden}.bar-fill{background:var(--primary);height:100%}table.sessions{border-collapse:collapse;width:100%;font-size:.9rem}table.sessions th,table.sessions td{text-align:left;border-bottom:1px solid var(--border);padding:.45rem .5rem}table.sessions tbody tr{cursor:pointer}table.sessions tbody tr:hover td{background:var(--surface-2)}.qgrid{grid-template-columns:repeat(8,1fr);gap:.3rem;display:grid}.qgrid button{padding:.35rem 0;font-size:.8rem}.qgrid button.cur{background:var(--primary);border-color:var(--primary);color:var(--primary-text)}.qgrid button.done{border-color:var(--correct-border)}.timer{font-weight:700}.timer.low{color:var(--wrong-text)}html[data-accent=amber]{--primary:#f59e0b;--primary-text:#3a2503}html[data-accent=indigo]{--primary:#4f46e5;--primary-text:#fff}html[data-accent=violet]{--primary:#7c3aed;--primary-text:#fff}html[data-accent=navy]{--primary:#232f3e;--primary-text:#fff}html[data-theme=dark][data-accent=navy]{--primary:#3e5170}.accent-link{color:var(--primary);font-weight:500;text-decoration:none}.accent-link:hover{text-decoration:underline}.swatches{flex-wrap:wrap;gap:1.5rem;margin-top:.4rem;display:flex}.swatch{cursor:pointer;color:var(--muted);white-space:nowrap;background:0 0;border:none;flex-direction:column;align-items:center;gap:.35rem;min-width:3.6rem;padding:0;font-size:.78rem;display:inline-flex}.swatch .dot{border:2px solid var(--border);border-radius:999px;width:2.1rem;height:2.1rem}.swatch.active{color:var(--text);font-weight:600}.swatch.active .dot{border-color:var(--text);box-shadow:0 0 0 2px var(--surface), 0 0 0 4px var(--text)}.nav-toggle{display:none}.nav-links{display:contents}@media (width<=860px){.nav-toggle{margin-left:auto;font-size:1.15rem;display:inline-flex}.nav-links{flex-direction:column;flex-basis:100%;align-items:flex-start;gap:.15rem;padding-top:.3rem;display:none}.nav-links.open{display:flex}.nav-links .spacer{display:none}.nav-links .cert-picker{margin:.3rem 0}}@media (width<=560px){.qgrid{grid-template-columns:repeat(6,1fr)}}@media (width<=400px){.qgrid{grid-template-columns:repeat(5,1fr)}}