.lesson-viewer{--lv-void:#080b12;--lv-panel:#0e131e;--lv-raised:#141c26;--lv-raised-2:#18212d;--lv-hairline:#1e2838;--lv-hairline-soft:#1a2330;--lv-ink:#e8ecf2;--lv-body:#b0b8c8;--lv-dim:#6c7889;--lv-amber:#ffb020;--lv-amber-bright:#ffc247;--lv-amber-dim:#8a6a2a;--lv-tip:var(--lv-amber);--lv-analogy:#a78bfa;--lv-key:#ffc247;--lv-problem:#2dd4bf;--lv-note:#60a5fa;--lv-force-blue:#5b9be6;--lv-force-red:#f27d7d;--lv-ok:#4fd08a;--lv-warn:#ffb020;--lv-f-display:"Space Grotesk", system-ui, -apple-system, sans-serif;--lv-f-body:system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--lv-f-mono:"JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;--lv-fs-eyebrow:.64rem;--lv-fs-h1:clamp(1.05rem, .92rem + .5vw, 1.3rem);--lv-fs-h2:.98rem;--lv-fs-h3:.88rem;--lv-fs-body:.86rem;--lv-lh-body:1.55;--lv-measure:600px;--lv-rail:170px;--lv-left-rail:160px;--lv-pad:clamp(12px, 2vw, 22px);background:var(--lv-void);color:var(--lv-body);font-family:var(--lv-f-body);font-size:var(--lv-fs-body);line-height:var(--lv-lh-body);background-image:radial-gradient(900px 500px at 78% -8%,#ffb0200d,transparent 60%),linear-gradient(var(--lv-hairline) 1px,transparent 1px),linear-gradient(90deg,var(--lv-hairline) 1px,transparent 1px);background-size:auto,44px 44px,44px 44px;min-height:100vh}.lesson-viewer.lv-embedded{background:0 0;min-height:0}.lesson-viewer.lv-embedded .lv-quickref,.lesson-viewer.lv-embedded .lv-chapternav{top:90px}.lesson-viewer h1,.lesson-viewer h2,.lesson-viewer h3{font-family:var(--lv-f-display);color:var(--lv-ink);margin:0}.lesson-viewer h1{font-weight:700;font-size:var(--lv-fs-h1);letter-spacing:-.01em;margin-bottom:6px;line-height:1.16}.lesson-viewer h2{font-weight:600;font-size:var(--lv-fs-h2);margin-bottom:10px;padding-left:14px;line-height:1.25;position:relative}.lesson-viewer h2:before{content:"";background:var(--lv-amber);width:5px;height:5px;position:absolute;top:7px;left:0;transform:rotate(45deg)}.lesson-viewer h3{font-weight:600;font-size:var(--lv-fs-h3);margin:12px 0 6px}.lesson-viewer p{max-width:66ch;margin:0 0 10px}.lesson-viewer strong{color:var(--lv-ink);font-weight:600}.lesson-viewer em{color:#c3cddb}.lesson-viewer .lv-topbar{padding:9px var(--lv-pad);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--lv-hairline);z-index:30;background:#090c11d1;align-items:center;gap:12px;display:flex;position:sticky;top:0}.lesson-viewer .lv-back{color:var(--lv-dim);cursor:pointer;background:0 0;border:none;border-radius:7px;padding:5px;display:flex}.lesson-viewer .lv-back:hover{color:var(--lv-ink);background:var(--lv-raised)}.lesson-viewer .lv-brandmark{width:26px;height:26px;color:var(--lv-amber);background:#ffb0201a;border:1px solid #ffb02045;border-radius:6px;place-items:center;display:grid}.lesson-viewer .lv-brand{font-family:var(--lv-f-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--lv-ink);font-size:.68rem;font-weight:600}.lesson-viewer .lv-progress{padding:8px var(--lv-pad);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--lv-hairline-soft);z-index:15;background:#090c11b8;position:sticky;top:44px}.lesson-viewer .lv-progress-label{font-family:var(--lv-f-mono);font-size:var(--lv-fs-eyebrow);letter-spacing:.14em;text-transform:uppercase;color:var(--lv-amber);margin-bottom:6px}.lesson-viewer .lv-track{background:var(--lv-hairline);border-radius:2px;max-width:620px;height:2px;position:relative}.lesson-viewer .lv-track .lv-fill{background:linear-gradient(90deg,var(--lv-amber),var(--lv-amber-bright));border-radius:2px;position:absolute;inset:0 auto 0 0}.lesson-viewer .lv-dots{gap:8px;margin-top:8px;display:flex}.lesson-viewer .lv-dots i{background:var(--lv-hairline);border:1px solid var(--lv-hairline);border-radius:50%;width:7px;height:7px;font-style:normal}.lesson-viewer .lv-dots i.lv-done{background:var(--lv-amber-dim)}.lesson-viewer .lv-dots i.lv-now{background:var(--lv-amber);box-shadow:0 0 0 3px #ffb0202e}.lesson-viewer .lv-shell{z-index:1;min-height:0;max-width:calc(var(--lv-measure) + var(--lv-rail) + 40px);width:100%;padding:clamp(10px,2vh,20px) var(--lv-pad) 0;grid-template-columns:minmax(0,var(--lv-measure)) var(--lv-rail);flex:1;justify-content:center;gap:24px;margin:0 auto;display:grid;position:relative}.lesson-viewer .lv-shell.lv-with-sidebar{grid-template-columns:var(--lv-left-rail) minmax(0,var(--lv-measure)) var(--lv-rail);max-width:calc(var(--lv-left-rail) + var(--lv-measure) + var(--lv-rail) + 56px)}@media(max-width:1080px){.lesson-viewer .lv-shell{grid-template-columns:minmax(0,var(--lv-measure));max-width:var(--lv-measure)}.lesson-viewer .lv-quickref,.lesson-viewer .lv-chapternav{display:none}.lesson-viewer .lv-quickref-fab{display:flex}}.lesson-viewer .lv-lessoncol,.lesson-viewer .lv-slidewrap{flex-direction:column;min-width:0;display:flex}.lesson-viewer .lv-slides{touch-action:pan-y}.lesson-viewer .lv-slide{flex-direction:column;padding-right:4px;animation:.32s lv-rise;display:none}.lesson-viewer .lv-slide.lv-active{display:flex}@keyframes lv-rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.lesson-viewer .lv-scrolldeck{gap:0}.lesson-viewer .lv-scrollchapter{scroll-margin-top:110px}.lesson-viewer .lv-scrollchapter+.lv-scrollchapter{border-top:1px solid var(--lv-hairline);margin-top:26px;padding-top:22px}.lesson-viewer .lv-scrolldeck-complete{border-top:1px solid var(--lv-hairline);justify-content:center;margin-top:26px;padding-top:22px;display:flex}.lesson-viewer .lv-chapternav{flex-direction:column;align-self:start;gap:14px;display:flex;position:sticky;top:100px}.lesson-viewer .lv-chapternav-title{font-family:var(--lv-f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--lv-dim);margin:0;padding:0 10px;font-size:.62rem}.lesson-viewer .lv-chapternav-list{flex-direction:column;gap:1px;display:flex}.lesson-viewer .lv-chapternav-item{text-align:left;border:none;border-left:2px solid var(--lv-hairline);cursor:pointer;width:100%;color:var(--lv-dim);font-family:var(--lv-f-body);background:0 0;border-radius:0 7px 7px 0;align-items:baseline;gap:8px;padding:6px 10px;font-size:.78rem;line-height:1.3;transition:background .15s,border-color .15s,color .15s;display:flex}.lesson-viewer .lv-chapternav-item:hover{color:var(--lv-ink);background:var(--lv-raised)}.lesson-viewer .lv-chapternav-item.lv-active{color:var(--lv-ink);border-left-color:var(--lv-amber);background:color-mix(in srgb,var(--lv-amber) 10%,transparent);font-weight:600}.lesson-viewer .lv-chapternav-num{font-family:var(--lv-f-mono);color:var(--lv-dim);flex-shrink:0;font-size:.66rem}.lesson-viewer .lv-chapternav-item.lv-active .lv-chapternav-num{color:var(--lv-amber)}.lesson-viewer .lv-chapternav-progress-label{font-family:var(--lv-f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--lv-dim);margin-bottom:6px;font-size:.62rem}.lesson-viewer .lv-meta{justify-content:space-between;align-items:center;gap:10px;margin-bottom:6px;display:flex}.lesson-viewer .lv-eyebrow{font-family:var(--lv-f-mono);font-size:var(--lv-fs-eyebrow);letter-spacing:.14em;text-transform:uppercase;color:var(--lv-amber);margin:0}.lesson-viewer .lv-readtime{font-family:var(--lv-f-mono);letter-spacing:.06em;color:var(--lv-dim);white-space:nowrap;font-size:.64rem}.lesson-viewer .lv-lede{color:#c3cddb;margin:0 0 4px;font-size:.92rem}.lesson-viewer .lv-tbl-wrap{border:1px solid var(--lv-hairline);border-radius:10px;margin:10px 0;overflow:auto hidden}.lesson-viewer table{border-collapse:collapse;width:100%;font-size:.78rem}.lesson-viewer thead th{background:var(--lv-raised-2);color:var(--lv-ink);text-align:left;font-weight:600;font-family:var(--lv-f-mono);letter-spacing:.06em;text-transform:uppercase;border-bottom:1px solid var(--lv-hairline);white-space:nowrap;padding:7px 12px;font-size:.64rem}.lesson-viewer tbody td{border-bottom:1px solid var(--lv-hairline-soft);color:var(--lv-body);padding:6px 12px}.lesson-viewer tbody tr:last-child td{border-bottom:none}.lesson-viewer tbody tr:nth-child(2n){background:#ffffff03}.lesson-viewer tbody td:first-child{color:var(--lv-ink);font-family:var(--lv-f-mono);font-size:.76rem}.lesson-viewer .lv-callout{--c:var(--lv-amber);background:color-mix(in srgb,var(--c) 8%,var(--lv-panel));border:1px solid color-mix(in srgb,var(--c) 26%,var(--lv-hairline));border-left:3px solid var(--c);border-radius:10px;grid-template-columns:auto 1fr;gap:10px;margin:10px 0;padding:10px 12px;display:grid}.lesson-viewer .lv-callout .lv-ico{font-size:.92rem;line-height:1.5}.lesson-viewer .lv-callout .lv-h{font-family:var(--lv-f-display);color:var(--lv-ink);margin:0 0 2px;font-size:.82rem;font-weight:600}.lesson-viewer .lv-callout p{max-width:none;margin:0;font-size:.8rem}.lesson-viewer .lv-callout.lv-tip{--c:var(--lv-tip)}.lesson-viewer .lv-callout.lv-analogy{--c:var(--lv-analogy)}.lesson-viewer .lv-callout.lv-key{--c:var(--lv-key)}.lesson-viewer .lv-callout.lv-problem{--c:var(--lv-problem)}.lesson-viewer .lv-callout.lv-note{--c:var(--lv-note)}.lesson-viewer .lv-spec{--c:var(--lv-force-blue);border:1px solid var(--lv-hairline);border-left:3px solid color-mix(in srgb,var(--c) 55%,var(--lv-hairline));background:var(--lv-panel);border-radius:10px;margin:8px 0;padding:10px 12px}.lesson-viewer .lv-spec.lv-red{--c:var(--lv-force-red)}.lesson-viewer .lv-spec .lv-head{align-items:center;gap:7px;margin:0 0 6px;display:flex}.lesson-viewer .lv-spec .lv-dot{background:var(--c);border-radius:50%;flex:none;width:9px;height:9px}.lesson-viewer .lv-spec .lv-head h3{margin:0;font-size:.84rem}.lesson-viewer .lv-spec ul{flex-direction:column;gap:4px;margin:0;padding:0;list-style:none;display:flex}.lesson-viewer .lv-spec ul li{color:var(--lv-body);font-size:.8rem;line-height:1.45}.lesson-viewer .lv-grid2{grid-template-columns:1fr 1fr;gap:10px;display:grid}@media(max-width:620px){.lesson-viewer .lv-grid2{grid-template-columns:1fr}}.lesson-viewer .lv-marklist{flex-direction:column;gap:5px;margin:8px 0;padding:0;list-style:none;display:flex}.lesson-viewer .lv-marklist li{grid-template-columns:auto 1fr;align-items:start;gap:8px;font-size:.82rem;display:grid}.lesson-viewer .lv-illus{border:1px solid var(--lv-hairline);background:var(--lv-panel);border-radius:10px;margin:10px 0;padding:10px 12px 8px}.lesson-viewer .lv-illus svg{width:100%;height:auto;display:block}.lesson-viewer .lv-illus .lv-cap{font-family:var(--lv-f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--lv-dim);text-align:center;margin-top:6px;font-size:.6rem}.lesson-viewer .lv-term{border-bottom:1px dotted var(--lv-dim);cursor:help;color:var(--lv-ink);font-weight:500;position:relative}.lesson-viewer .lv-term:hover,.lesson-viewer .lv-term:focus{color:var(--lv-amber-bright);border-color:var(--lv-amber)}.lesson-viewer .lv-tooltip{background:var(--lv-raised-2);border:1px solid var(--lv-hairline);color:var(--lv-body);z-index:40;pointer-events:none;border-radius:8px;width:210px;margin-bottom:9px;padding:8px 10px;font-size:.74rem;line-height:1.45;display:none;position:absolute;bottom:100%;left:50%;transform:translate(-50%);box-shadow:0 10px 28px #00000073}.lesson-viewer .lv-tooltip:after{content:"";border:6px solid #0000;border-top-color:var(--lv-hairline);position:absolute;top:100%;left:50%;transform:translate(-50%)}.lesson-viewer .lv-tooltip:before{content:"";border:5px solid #0000;border-top-color:var(--lv-raised-2);z-index:1;position:absolute;top:calc(100% - 1px);left:50%;transform:translate(-50%)}.lesson-viewer .lv-term:hover .lv-tooltip,.lesson-viewer .lv-term:focus .lv-tooltip,.lesson-viewer .lv-tooltip.lv-open{display:block}.lesson-viewer .lv-tooltip b{color:var(--lv-amber-bright);font-family:var(--lv-f-mono);letter-spacing:.06em;text-transform:uppercase;margin-bottom:3px;font-size:.64rem;display:block}.lesson-viewer .lv-formula-card{border:1px solid var(--lv-hairline);background:var(--lv-panel);border-radius:10px;margin:10px 0;padding:12px 14px}.lesson-viewer .lv-formula{text-align:center;font-family:var(--lv-f-mono);color:var(--lv-ink);margin:0}.lesson-viewer .lv-formula.lv-md{font-size:.98rem}.lesson-viewer .lv-formula.lv-sm{font-size:.92rem}.lesson-viewer .lv-missionbrief{background:color-mix(in srgb,var(--lv-note) 10%,var(--lv-panel));border:1px solid color-mix(in srgb,var(--lv-note) 32%,var(--lv-hairline));border-radius:9px;flex-wrap:wrap;align-items:baseline;gap:5px;margin:0 0 14px;padding:7px 12px;display:flex}.lesson-viewer .lv-missionbrief .lv-h{font-family:var(--lv-f-display);color:var(--lv-note);flex-shrink:0;margin:0;font-size:.8rem;font-weight:700}.lesson-viewer .lv-missionbrief p{max-width:none;color:var(--lv-body);margin:0;font-size:.8rem}.lesson-viewer .lv-qcheck{border:1px solid var(--lv-hairline);background:var(--lv-raised);border-radius:10px;margin:12px 0;padding:12px 14px}.lesson-viewer .lv-qcheck .lv-q{font-family:var(--lv-f-display);color:var(--lv-ink);align-items:flex-start;gap:6px;margin:0 0 8px;font-size:.84rem;font-weight:600;display:flex}.lesson-viewer .lv-qcheck .lv-opts{flex-direction:column;gap:6px;display:flex}.lesson-viewer .lv-qcheck .lv-opt{text-align:left;border:1px solid var(--lv-hairline);background:var(--lv-panel);color:var(--lv-body);cursor:pointer;font-size:.8rem;font-family:var(--lv-f-body);border-radius:8px;padding:7px 10px}.lesson-viewer .lv-qcheck .lv-opt:hover:not(:disabled){border-color:var(--lv-amber-dim)}.lesson-viewer .lv-qcheck .lv-opt.lv-correct{border-color:var(--lv-ok);background:color-mix(in srgb,var(--lv-ok) 12%,var(--lv-panel));color:var(--lv-ink)}.lesson-viewer .lv-qcheck .lv-opt.lv-wrong{border-color:var(--lv-force-red);background:color-mix(in srgb,var(--lv-force-red) 12%,var(--lv-panel));color:var(--lv-ink)}.lesson-viewer .lv-qcheck .lv-opt:disabled{cursor:default}.lesson-viewer .lv-qcheck .lv-fb{color:var(--lv-dim);margin-top:8px;font-size:.78rem}.lesson-viewer .lv-calc{border:1px solid var(--lv-amber-dim);background:color-mix(in srgb,var(--lv-amber) 6%,var(--lv-panel));border-radius:10px;margin:12px 0;padding:12px 14px}.lesson-viewer .lv-calc-head{font-family:var(--lv-f-display);color:var(--lv-ink);align-items:center;gap:6px;margin-bottom:8px;font-size:.86rem;font-weight:600;display:flex}.lesson-viewer .lv-calc-row{grid-template-columns:100px 1fr 56px;align-items:center;gap:8px;margin-bottom:6px;display:grid}.lesson-viewer .lv-calc-row label{color:var(--lv-dim);font-size:.74rem;font-family:var(--lv-f-mono)}.lesson-viewer .lv-calc-row input[type=range]{width:100%;accent-color:var(--lv-amber)}.lesson-viewer .lv-calc-row .lv-val{font-family:var(--lv-f-mono);color:var(--lv-ink);text-align:right;font-size:.76rem}.lesson-viewer .lv-calc-result{border-top:1px solid var(--lv-hairline-soft);text-align:center;color:var(--lv-body);margin-top:8px;padding-top:8px;font-size:.86rem}.lesson-viewer .lv-calc-result strong{color:var(--lv-amber-bright);font-family:var(--lv-f-mono);font-size:.98rem}.lesson-viewer .lv-calc-bar-wrap{margin-top:8px}.lesson-viewer .lv-quickref{align-self:start;position:sticky;top:100px}.lesson-viewer .lv-quickref .lv-card{border:1px solid var(--lv-hairline);border-left:3px solid var(--lv-amber);background:linear-gradient(160deg,color-mix(in srgb,var(--lv-amber) 9%,var(--lv-panel)),color-mix(in srgb,var(--lv-amber) 8%,var(--lv-panel)));border-radius:12px;padding:12px;box-shadow:0 10px 26px -14px #0000008c}.lesson-viewer .lv-quickref .lv-cap{font-family:var(--lv-f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--lv-dim);margin-bottom:8px;font-size:.6rem}.lesson-viewer .lv-quickref .lv-formula-line{text-align:center;color:var(--lv-ink);font-size:.92rem;font-family:var(--lv-f-mono);margin:4px 0 10px}.lesson-viewer .lv-quickref dl{flex-direction:column;gap:5px;margin:0;display:flex}.lesson-viewer .lv-quickref dl div{justify-content:space-between;gap:8px;font-size:.74rem;display:flex}.lesson-viewer .lv-quickref dl dt{color:var(--lv-dim);font-family:var(--lv-f-mono);margin:0}.lesson-viewer .lv-quickref dl dd{color:var(--lv-body);text-align:right;margin:0}.lesson-viewer .lv-quickref .lv-divider{background:var(--lv-hairline);height:1px;margin:10px 0}.lesson-viewer .lv-quickref .lv-re-val{font-family:var(--lv-f-mono);color:var(--lv-amber-bright);text-align:center;font-size:.9rem;font-weight:600}.lesson-viewer .lv-quickref .lv-re-lbl{text-align:center;color:var(--lv-dim);margin-top:2px;font-size:.66rem}.lesson-viewer .lv-quickref-fab{z-index:45;background:var(--lv-amber);color:#1a1204;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;display:none;position:fixed;bottom:20px;right:20px;box-shadow:0 10px 28px -8px #0009}.lesson-viewer .lv-quickref-drawer-backdrop{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:50;background:#06080c99;justify-content:flex-end;display:flex;position:fixed;inset:0}.lesson-viewer .lv-quickref-drawer{background:var(--lv-void);border-left:1px solid var(--lv-hairline);width:min(300px,86vw);height:100%;padding:52px 14px 20px;animation:.22s both lv-drawer-in;position:relative;overflow-y:auto}@keyframes lv-drawer-in{0%{transform:translate(100%)}to{transform:translate(0)}}.lesson-viewer .lv-quickref-drawer-close{background:var(--lv-raised);color:var(--lv-dim);cursor:pointer;border:none;border-radius:7px;justify-content:center;align-items:center;width:28px;height:28px;display:flex;position:absolute;top:10px;right:10px}.lesson-viewer .lv-quickref-drawer-close:hover{color:var(--lv-ink);background:var(--lv-raised-2)}.lesson-viewer .lv-slidenav{padding:10px var(--lv-pad) 14px;border-top:1px solid var(--lv-hairline);max-width:calc(var(--lv-measure) + var(--lv-rail) + 40px);justify-content:space-between;align-items:center;gap:12px;width:100%;margin:0 auto;display:flex}.lesson-viewer .lv-btn{font-family:var(--lv-f-body);cursor:pointer;border:1px solid var(--lv-hairline);background:var(--lv-raised);color:var(--lv-body);border-radius:9px;padding:8px 15px;font-size:.8rem;font-weight:600}.lesson-viewer .lv-btn:hover:not(:disabled){color:var(--lv-ink);background:var(--lv-raised-2)}.lesson-viewer .lv-btn.lv-primary{background:linear-gradient(180deg,var(--lv-amber-bright),var(--lv-amber));color:#1a1204;border:none}.lesson-viewer .lv-btn.lv-primary:hover{filter:brightness(1.05)}.lesson-viewer .lv-btn:disabled{opacity:.35;cursor:not-allowed}.lesson-viewer .lv-slidedots{align-items:center;gap:7px;display:flex}.lesson-viewer .lv-slidedots button{background:var(--lv-hairline);cursor:pointer;border:none;border-radius:50%;width:6px;height:6px;padding:0}.lesson-viewer .lv-slidedots button.lv-active{background:var(--lv-amber);border-radius:3px;width:18px;transition:all .2s}.lesson-viewer .lv-quiz-shell{max-width:var(--lv-measure);width:100%;margin:0 auto;padding:clamp(16px,3vh,28px) 0 44px}.lesson-viewer .lv-quiz-card{background:var(--lv-panel);border:1px solid var(--lv-hairline);border-radius:14px;padding:18px 20px 20px}.lesson-viewer .lv-quiz-head{align-items:center;gap:10px;margin-bottom:10px;display:flex}.lesson-viewer .lv-quiz-close{color:var(--lv-dim);cursor:pointer;background:0 0;border:none;border-radius:6px;flex-shrink:0;padding:3px;display:flex}.lesson-viewer .lv-quiz-close:hover{color:var(--lv-ink);background:var(--lv-raised)}.lesson-viewer .lv-quiz-eyebrow{font-family:var(--lv-f-mono);font-size:var(--lv-fs-eyebrow);letter-spacing:.14em;text-transform:uppercase;color:var(--lv-amber);flex:1;margin:0}.lesson-viewer .lv-quiz-counter{font-family:var(--lv-f-mono);color:var(--lv-dim);white-space:nowrap;flex-shrink:0;font-size:.68rem}.lesson-viewer .lv-quiz-track{background:var(--lv-hairline);border-radius:2px;height:4px;margin-bottom:16px;position:relative;overflow:hidden}.lesson-viewer .lv-quiz-track-fill{background:linear-gradient(90deg,var(--lv-amber),var(--lv-amber-bright));border-radius:2px;transition:width .3s;position:absolute;inset:0 auto 0 0}.lesson-viewer .lv-quiz-question{font-family:var(--lv-f-display);color:var(--lv-ink);margin:0 0 14px;font-size:.94rem;font-weight:600}.lesson-viewer .lv-quiz-opts{flex-direction:column;gap:8px;display:flex}.lesson-viewer .lv-quiz-opt{text-align:left;border:1px solid var(--lv-hairline);background:var(--lv-raised);width:100%;color:var(--lv-body);font-family:var(--lv-f-body);cursor:pointer;border-radius:9px;align-items:center;gap:10px;padding:9px 12px;font-size:.82rem;display:flex}.lesson-viewer .lv-quiz-opt:hover:not(:disabled){border-color:var(--lv-amber-dim)}.lesson-viewer .lv-quiz-opt:disabled{cursor:default}.lesson-viewer .lv-quiz-opt.lv-quiz-correct{border-color:var(--lv-ok);background:color-mix(in srgb,var(--lv-ok) 14%,var(--lv-panel));color:var(--lv-ink)}.lesson-viewer .lv-quiz-opt.lv-quiz-wrong{border-color:var(--lv-force-red);background:color-mix(in srgb,var(--lv-force-red) 14%,var(--lv-panel));color:var(--lv-ink)}.lesson-viewer .lv-quiz-opt-dot{border:1.5px solid var(--lv-hairline);color:#0000;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:18px;height:18px;display:flex}.lesson-viewer .lv-quiz-opt.lv-quiz-correct .lv-quiz-opt-dot{border-color:var(--lv-ok);background:var(--lv-ok);color:var(--lv-void)}.lesson-viewer .lv-quiz-opt.lv-quiz-wrong .lv-quiz-opt-dot{border-color:var(--lv-force-red);background:var(--lv-force-red);color:var(--lv-void)}.lesson-viewer .lv-quiz-reasoning{border:1px solid var(--lv-hairline);background:var(--lv-raised);border-radius:9px;margin-top:14px;padding:10px 12px;font-size:.8rem}.lesson-viewer .lv-quiz-reasoning p{margin:0}.lesson-viewer .lv-quiz-reasoning strong{font-weight:700}.lesson-viewer .lv-quiz-reasoning.lv-quiz-reasoning-ok{border-color:color-mix(in srgb,var(--lv-ok) 40%,var(--lv-hairline));color:var(--lv-ink)}.lesson-viewer .lv-quiz-reasoning.lv-quiz-reasoning-ok strong{color:var(--lv-ok)}.lesson-viewer .lv-quiz-reasoning.lv-quiz-reasoning-bad{border-color:color-mix(in srgb,var(--lv-force-red) 40%,var(--lv-hairline));color:var(--lv-ink)}.lesson-viewer .lv-quiz-reasoning.lv-quiz-reasoning-bad strong{color:var(--lv-force-red)}.lesson-viewer .lv-quiz-correct-answer{color:var(--lv-body);margin-top:6px;font-size:.78rem}.lesson-viewer .lv-result-shell{max-width:var(--lv-measure);width:100%;margin:0 auto;padding:clamp(16px,3vh,28px) 0 44px}.lesson-viewer .lv-result-score{margin-bottom:18px}.lesson-viewer .lv-result-score-label{font-family:var(--lv-f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--lv-amber);margin:0 0 4px;font-size:.62rem}.lesson-viewer .lv-result-score.lv-result-pass .lv-result-score-label{color:var(--lv-ok)}.lesson-viewer .lv-result-score-num{font-family:var(--lv-f-display);color:var(--lv-ink);font-size:1.5rem;font-weight:700}.lesson-viewer .lv-result-score-track{background:var(--lv-hairline);border-radius:3px;height:6px;margin-top:10px;position:relative;overflow:hidden}.lesson-viewer .lv-result-score-fill{background:linear-gradient(90deg,var(--lv-amber),var(--lv-amber-bright));border-radius:3px;transition:width .3s;position:absolute;inset:0 auto 0 0}.lesson-viewer .lv-result-score.lv-result-pass .lv-result-score-fill{background:linear-gradient(90deg,var(--lv-ok),#6be0a6)}.lesson-viewer .lv-result-list{flex-direction:column;gap:7px;display:flex}.lesson-viewer .lv-result-item{background:color-mix(in srgb,var(--lv-ok) 8%,var(--lv-panel));border:1px solid color-mix(in srgb,var(--lv-ok) 28%,var(--lv-hairline));border-radius:10px}.lesson-viewer .lv-result-item.lv-result-wrong{background:color-mix(in srgb,var(--lv-force-red) 9%,var(--lv-panel));border-color:color-mix(in srgb,var(--lv-force-red) 30%,var(--lv-hairline))}.lesson-viewer .lv-result-item-head{cursor:default;align-items:center;gap:8px;padding:8px 12px;display:flex}.lesson-viewer .lv-result-item.lv-result-wrong .lv-result-item-head{cursor:pointer}.lesson-viewer .lv-result-item-icon{flex-shrink:0}.lesson-viewer .lv-result-item.lv-result-correct .lv-result-item-icon{color:var(--lv-ok)}.lesson-viewer .lv-result-item.lv-result-wrong .lv-result-item-icon{color:var(--lv-force-red)}.lesson-viewer .lv-result-item-line{min-width:0;color:var(--lv-ink);flex:1;font-size:.8rem}.lesson-viewer .lv-result-item-expand{color:var(--lv-dim);flex-shrink:0}.lesson-viewer .lv-result-review-inline{color:var(--lv-amber-bright);cursor:pointer;background:0 0;border:none;align-items:center;gap:5px;margin:-2px 0 0;padding:0 12px 8px;font-size:.76rem;font-weight:600;display:flex}.lesson-viewer .lv-result-review-inline:hover{color:var(--lv-amber)}.lesson-viewer .lv-result-item-body{border-top:1px solid var(--lv-hairline-soft);margin-top:2px;padding:0 12px 12px}.lesson-viewer .lv-result-item-body dl{flex-direction:column;gap:6px;margin:10px 0 0;display:flex}.lesson-viewer .lv-result-item-body dt{font-family:var(--lv-f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--lv-dim);margin:0 0 2px;font-size:.62rem}.lesson-viewer .lv-result-item-body dd{color:var(--lv-body);margin:0;font-size:.8rem}.lesson-viewer .lv-result-actions{flex-wrap:wrap;gap:10px;margin-top:22px;display:flex}.lesson-viewer .lv-result-actions .lv-btn{flex:1;min-width:160px}@media(prefers-reduced-motion:reduce){.lesson-viewer .lv-slide{animation:none}}