.lic{--lic-hue:277;--lic-bg:oklch(0.985 0.004 var(--lic-hue));--lic-surface:oklch(1 0 0);--lic-surface-2:oklch(0.965 0.008 var(--lic-hue));--lic-line:oklch(0.9 0.012 var(--lic-hue));--lic-line-strong:oklch(0.82 0.02 var(--lic-hue));--lic-ink:oklch(0.22 0.03 var(--lic-hue));--lic-ink-2:oklch(0.38 0.03 var(--lic-hue));--lic-ink-3:oklch(0.5 0.025 var(--lic-hue));--lic-brand:oklch(0.51 0.21 var(--lic-hue));--lic-brand-ink:oklch(0.42 0.2 var(--lic-hue));--lic-brand-soft:oklch(0.95 0.035 var(--lic-hue));--lic-band:oklch(0.24 0.09 var(--lic-hue));--lic-band-2:oklch(0.32 0.14 var(--lic-hue));--lic-band-ink:oklch(0.97 0.01 var(--lic-hue));--lic-band-ink-2:oklch(0.82 0.05 var(--lic-hue));--lic-ok:oklch(0.52 0.13 155);--lic-ok-soft:oklch(0.95 0.045 155);--lic-bad:oklch(0.53 0.19 22);--lic-bad-soft:oklch(0.955 0.03 22);--lic-warn:oklch(0.62 0.14 70);--lic-warn-soft:oklch(0.96 0.05 85);--lic-shadow:0 1px 2px oklch(0.2 0.05 var(--lic-hue)/0.06),0 8px 24px -12px oklch(0.2 0.05 var(--lic-hue)/0.18);--lic-ease:cubic-bezier(0.22,1,0.36,1);--lic-z-sticky:20;--lic-z-overlay:40;background:var(--lic-bg);color:var(--lic-ink);font-family:var(--font-geist-sans),ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;min-height:100vh;-webkit-font-smoothing:antialiased}@media (prefers-color-scheme:dark){.lic{--lic-bg:oklch(0.17 0.018 var(--lic-hue));--lic-surface:oklch(0.205 0.022 var(--lic-hue));--lic-surface-2:oklch(0.24 0.026 var(--lic-hue));--lic-line:oklch(0.3 0.03 var(--lic-hue));--lic-line-strong:oklch(0.4 0.04 var(--lic-hue));--lic-ink:oklch(0.95 0.008 var(--lic-hue));--lic-ink-2:oklch(0.83 0.02 var(--lic-hue));--lic-ink-3:oklch(0.7 0.025 var(--lic-hue));--lic-brand:oklch(0.7 0.16 var(--lic-hue));--lic-brand-ink:oklch(0.8 0.12 var(--lic-hue));--lic-brand-soft:oklch(0.28 0.07 var(--lic-hue));--lic-band:oklch(0.22 0.07 var(--lic-hue));--lic-band-2:oklch(0.3 0.12 var(--lic-hue));--lic-ok:oklch(0.74 0.14 155);--lic-ok-soft:oklch(0.27 0.05 155);--lic-bad:oklch(0.72 0.15 22);--lic-bad-soft:oklch(0.28 0.06 22);--lic-warn:oklch(0.8 0.13 80);--lic-warn-soft:oklch(0.29 0.05 80);--lic-shadow:0 1px 2px oklch(0 0 0/0.3),0 12px 32px -16px oklch(0 0 0/0.6)}}:where(.lic) a{color:inherit}.lic :focus-visible{outline:2px solid var(--lic-brand);outline-offset:2px;border-radius:6px}.lic h1,.lic h2,.lic h3{text-wrap:balance}.lic-header{position:sticky;top:0;z-index:var(--lic-z-sticky);background:color-mix(in oklch,var(--lic-bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--lic-line)}.lic-header-inner{max-width:1160px;margin:0 auto;padding:0 16px;height:60px;gap:20px}.lic-header-inner,.lic-mark{display:flex;align-items:center}.lic-mark{gap:10px;text-decoration:none;font-weight:700;letter-spacing:-.01em;white-space:nowrap}.lic-mark-badge{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:linear-gradient(160deg,var(--lic-band-2),var(--lic-band));color:var(--lic-band-ink);font-size:13px;font-weight:800;box-shadow:inset 0 1px 0 oklch(1 0 0/.18)}.lic-mark small{display:block;font-weight:500;font-size:11.5px;color:var(--lic-ink-3);letter-spacing:0;line-height:1.1}.lic-nav{display:flex;gap:2px;margin-left:auto;overflow-x:auto;scrollbar-width:none}.lic-nav::-webkit-scrollbar{display:none}.lic-nav a{text-decoration:none;font-size:14px;font-weight:500;color:var(--lic-ink-2);padding:7px 12px;border-radius:8px;white-space:nowrap;transition:background .2s var(--lic-ease),color .2s var(--lic-ease)}.lic-nav a:hover{background:var(--lic-surface-2);color:var(--lic-ink)}.lic-nav a[aria-current=page]{background:var(--lic-brand-soft);color:var(--lic-brand-ink)}@media (max-width:760px){.lic-header-inner{height:auto;flex-wrap:wrap;padding-top:10px;gap:8px}.lic-nav{margin-left:0;width:calc(100% + 32px);margin-inline:-16px;padding:0 12px 8px}}.lic-wrap{max-width:1160px}.lic-narrow,.lic-wrap{margin:0 auto;padding:0 16px}.lic-narrow{max-width:760px}.lic-band{background:radial-gradient(120% 90% at 85% 0,var(--lic-band-2) 0,transparent 60%),var(--lic-band);color:var(--lic-band-ink);position:relative;overflow:hidden}.lic-band:after{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(oklch(1 0 0/.045) 1px,transparent 0),linear-gradient(90deg,oklch(1 0 0/.045) 1px,transparent 0);background-size:44px 44px;-webkit-mask-image:linear-gradient(180deg,black,transparent 85%);mask-image:linear-gradient(180deg,black,transparent 85%)}.lic-band>*{position:relative;z-index:1}.lic-band-muted{color:var(--lic-band-ink-2)}.lic-display{font-size:clamp(2.1rem,5.2vw,4rem);line-height:1.02;letter-spacing:-.035em;font-weight:750}.lic-h2{font-size:clamp(1.4rem,2.6vw,1.9rem);line-height:1.15;letter-spacing:-.02em;font-weight:700}.lic-lede{font-size:clamp(1.02rem,1.6vw,1.2rem);line-height:1.6;max-width:60ch}.lic-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:600;font-size:15px;line-height:1;padding:13px 20px;border-radius:11px;border:1px solid transparent;text-decoration:none;cursor:pointer;white-space:nowrap;transition:transform .18s var(--lic-ease),background .2s var(--lic-ease),border-color .2s var(--lic-ease),box-shadow .2s var(--lic-ease)}.lic-btn:active{transform:translateY(1px) scale(.99)}.lic-btn:disabled{opacity:.45;cursor:not-allowed}.lic-btn-primary{background:linear-gradient(180deg,color-mix(in oklch,var(--lic-brand) 88%,white),var(--lic-brand));color:white;box-shadow:inset 0 1px 0 oklch(1 0 0/.22),0 6px 18px -8px var(--lic-brand)}.lic-btn-primary:hover:not(:disabled){box-shadow:inset 0 1px 0 oklch(1 0 0/.22),0 10px 26px -10px var(--lic-brand)}.lic-btn-light{background:var(--lic-band-ink);color:var(--lic-band)}.lic-btn-light:hover{background:white}.lic-btn-ghost-light{border-color:oklch(1 0 0/.28);color:var(--lic-band-ink);background:oklch(1 0 0/.06)}.lic-btn-ghost-light:hover{background:oklch(1 0 0/.12)}.lic-btn-quiet{background:var(--lic-surface);border-color:var(--lic-line-strong);color:var(--lic-ink)}.lic-btn-quiet:hover:not(:disabled){background:var(--lic-surface-2)}.lic-btn-sm{padding:9px 14px;font-size:14px;border-radius:9px}.lic-panel{background:var(--lic-surface);border:1px solid var(--lic-line);border-radius:16px;box-shadow:var(--lic-shadow)}.lic-chip{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--lic-surface-2);color:var(--lic-ink-2)}.lic-chip-law{background:var(--lic-warn-soft);color:color-mix(in oklch,var(--lic-warn) 70%,var(--lic-ink))}.lic-muted{color:var(--lic-ink-2)}.lic-faint{color:var(--lic-ink-3)}.lic-meter{height:6px;border-radius:999px;background:var(--lic-surface-2);overflow:hidden}.lic-meter>span{display:block;width:100%;height:100%;border-radius:inherit;background:var(--lic-brand);transform-origin:left;transform:scaleX(var(--v,0));transition:transform .6s var(--lic-ease)}.lic-meter[data-tone=ok]>span{background:var(--lic-ok)}.lic-units{list-style:none;margin:0;padding:0;border-top:1px solid var(--lic-line)}.lic-unit-row{display:grid;grid-template-columns:64px 1fr 180px 20px;align-items:center;gap:20px;padding:20px 8px;border-bottom:1px solid var(--lic-line);text-decoration:none;transition:background .2s var(--lic-ease)}.lic-unit-row:hover{background:var(--lic-surface)}.lic-unit-row:hover .lic-unit-arrow{transform:translateX(3px);color:var(--lic-brand)}.lic-unit-num{font-size:30px;font-weight:300;letter-spacing:-.03em;color:var(--lic-ink-3);font-variant-numeric:tabular-nums}.lic-unit-title{font-weight:650;font-size:17px;letter-spacing:-.01em}.lic-unit-arrow{color:var(--lic-ink-3);transition:transform .25s var(--lic-ease),color .2s}@media (max-width:700px){.lic-unit-row{grid-template-columns:44px 1fr 16px;gap:12px}.lic-unit-row .lic-unit-meter{grid-column:2/3}.lic-unit-num{font-size:22px}}.lic-lesson{display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;align-items:start}.lic-lesson>aside{position:sticky;top:84px;align-self:start}.lic-toc{font-size:14px;max-height:calc(100vh - 110px);overflow:auto;padding-bottom:20px}.lic-toc a{display:flex;gap:10px;text-decoration:none;padding:6px 10px;border-radius:8px;color:var(--lic-ink-2);line-height:1.35}.lic-toc a:hover{background:var(--lic-surface-2);color:var(--lic-ink)}.lic-toc a[data-read=true] .lic-toc-dot{background:var(--lic-ok);border-color:var(--lic-ok)}.lic-toc-dot{flex:none;width:9px;height:9px;margin-top:5px;border-radius:50%;border:1.5px solid var(--lic-line-strong)}@media (max-width:960px){.lic-lesson{grid-template-columns:minmax(0,1fr);gap:24px}.lic-lesson>aside{position:static}.lic-toc{max-height:none}}.lic-section{scroll-margin-top:90px;padding:36px 0 12px;border-top:1px solid var(--lic-line)}.lic-section:first-child{border-top:0;padding-top:8px}.lic-prose{font-size:17px;line-height:1.72;color:var(--lic-ink);max-width:70ch;text-wrap:pretty}.lic-prose p{margin:0 0 1em}.lic-prose strong{font-weight:650;color:var(--lic-ink)}.lic-prose h3{font-size:1.12em;font-weight:700;letter-spacing:-.01em;margin:1.6em 0 .5em}.lic-prose h4{font-size:1em;font-weight:700;margin:1.4em 0 .4em}.lic-prose ol,.lic-prose ul{margin:0 0 1.1em;padding-left:1.3em}.lic-prose ul{list-style:disc}.lic-prose ol{list-style:decimal}.lic-prose ul ul{list-style:circle;margin:.3em 0 .4em}.lic-prose li{margin:.3em 0;padding-left:.2em}.lic-prose li::marker{color:var(--lic-brand)}.lic-prose blockquote{margin:1.2em 0;padding:14px 18px;background:var(--lic-brand-soft);border-radius:12px}.lic-prose blockquote p:last-child{margin:0}.lic-prose code{font-family:var(--font-geist-mono),ui-monospace,monospace;font-size:.9em;background:var(--lic-surface-2);padding:1px 5px;border-radius:5px}.lic-prose .lic-table-scroll{overflow-x:auto;margin:1.2em 0;border:1px solid var(--lic-line);border-radius:12px}.lic-prose table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.5}.lic-prose td,.lic-prose th{text-align:left;vertical-align:top;padding:10px 14px;border-bottom:1px solid var(--lic-line)}.lic-prose th{background:var(--lic-surface-2);font-weight:650}.lic-prose tr:last-child td{border-bottom:0}.lic-q-prompt{font-size:clamp(1.15rem,2.2vw,1.4rem);line-height:1.45;font-weight:600;letter-spacing:-.01em;text-wrap:pretty}.lic-opts{list-style:none;margin:0;padding:0;display:grid;gap:10px}.lic-opt{width:100%;display:grid;grid-template-columns:32px 1fr;gap:14px;align-items:start;text-align:left;font:inherit;font-size:16px;line-height:1.5;color:var(--lic-ink);background:var(--lic-surface);border:1.5px solid var(--lic-line);border-radius:13px;padding:14px 16px;cursor:pointer;transition:border-color .18s var(--lic-ease),background .18s var(--lic-ease),transform .18s var(--lic-ease)}.lic-opt:hover:not(:disabled){border-color:var(--lic-line-strong);background:var(--lic-surface-2)}.lic-opt:disabled{cursor:default}.lic-opt-key{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;font-weight:700;font-size:14px;background:var(--lic-surface-2);color:var(--lic-ink-2);transition:background .18s,color .18s}.lic-opt[data-state=selected]{border-color:var(--lic-brand);background:var(--lic-brand-soft)}.lic-opt[data-state=selected] .lic-opt-key{background:var(--lic-brand);color:white}.lic-opt[data-state=correct]{border-color:var(--lic-ok);background:var(--lic-ok-soft)}.lic-opt[data-state=correct] .lic-opt-key{background:var(--lic-ok);color:white}.lic-opt[data-state=wrong]{border-color:var(--lic-bad);background:var(--lic-bad-soft)}.lic-opt[data-state=wrong] .lic-opt-key{background:var(--lic-bad);color:white}.lic-opt[data-state=dim]{opacity:.55}.lic-feedback{border-radius:14px;padding:16px 18px;font-size:15.5px;line-height:1.6;animation:lic-rise .35s var(--lic-ease)}.lic-feedback[data-tone=ok]{background:var(--lic-ok-soft)}.lic-feedback[data-tone=bad]{background:var(--lic-bad-soft)}.lic-feedback-title{font-weight:700;display:flex;align-items:center;gap:8px;margin-bottom:4px}.lic-feedback[data-tone=ok] .lic-feedback-title{color:var(--lic-ok)}.lic-feedback[data-tone=bad] .lic-feedback-title{color:var(--lic-bad)}.lic-grid-nav{display:grid;grid-template-columns:repeat(auto-fill,minmax(38px,1fr));gap:6px}.lic-grid-nav button{font:inherit;font-size:13px;font-weight:600;font-variant-numeric:tabular-nums;height:36px;border-radius:8px;border:1px solid var(--lic-line);background:var(--lic-surface);color:var(--lic-ink-2);cursor:pointer;position:relative}.lic-grid-nav button[data-answered=true]{background:var(--lic-brand-soft);color:var(--lic-brand-ink);border-color:transparent}.lic-grid-nav button[data-current=true]{outline:2px solid var(--lic-brand);outline-offset:1px}.lic-grid-nav button[data-flag=true]:after{content:"";position:absolute;top:4px;right:4px;width:6px;height:6px;border-radius:50%;background:var(--lic-warn)}.lic-grid-nav button[data-result=ok]{background:var(--lic-ok-soft);color:var(--lic-ok);border-color:transparent}.lic-grid-nav button[data-result=bad]{background:var(--lic-bad-soft);color:var(--lic-bad);border-color:transparent}.lic-kbd{font-family:var(--font-geist-mono),ui-monospace,monospace;font-size:11.5px;padding:2px 6px;border-radius:5px;border:1px solid var(--lic-line-strong);background:var(--lic-surface);color:var(--lic-ink-2)}.lic-ring{--p:0;--tone:var(--lic-brand);width:148px;height:148px;place-items:center;background:conic-gradient(var(--tone) calc(var(--p) * 1%),var(--lic-surface-2) 0)}.lic-ring,.lic-ring>div{border-radius:50%;display:grid}.lic-ring>div{width:118px;height:118px;background:var(--lic-surface);place-items:center;text-align:center}.lic-card-stage{perspective:1400px}.lic-flip{position:relative;width:100%;min-height:300px;transform-style:preserve-3d;transition:transform .6s var(--lic-ease);cursor:pointer;border:0;background:none;padding:0;font:inherit;color:inherit;text-align:center}.lic-flip[data-flipped=true]{transform:rotateY(180deg)}.lic-face{position:absolute;inset:0;backface-visibility:hidden;border-radius:20px;padding:36px 28px;display:grid;place-items:center}.lic-face-front{background:linear-gradient(160deg,var(--lic-band-2),var(--lic-band));color:var(--lic-band-ink);box-shadow:var(--lic-shadow)}.lic-face-back{background:var(--lic-surface);border:1px solid var(--lic-line);transform:rotateY(180deg);box-shadow:var(--lic-shadow)}@keyframes lic-rise{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.lic-rise{animation:lic-rise .5s var(--lic-ease) both}.lic-stagger>*{animation:lic-rise .55s var(--lic-ease) both}.lic-stagger>:nth-child(2){animation-delay:40ms}.lic-stagger>:nth-child(3){animation-delay:80ms}.lic-stagger>:nth-child(4){animation-delay:.12s}.lic-stagger>:nth-child(5){animation-delay:.16s}.lic-stagger>:nth-child(n+6){animation-delay:.2s}@media (prefers-reduced-motion:reduce){.lic *,.lic :after,.lic :before{animation-duration:.01ms!important;animation-delay:0s!important;transition-duration:.01ms!important}.lic-flip{transition:none}}@media print{.lic-header,.lic-noprint,.lic-toc{display:none!important}.lic-lesson{grid-template-columns:1fr}}.lic-exam-grid{display:grid;gap:36px;grid-template-columns:minmax(0,1fr);align-items:start}@media (min-width:920px){.lic-exam-grid{grid-template-columns:minmax(0,1fr) 300px;gap:48px}.lic-exam-grid>aside{position:sticky;top:84px}}.lic-list{list-style:disc}.lic-list li::marker{color:var(--lic-brand)}@media (hover:none){.lic-keys{display:none!important}}.lic-account{flex:none}.lic-account-chip{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-size:14px;font-weight:600;padding:7px 12px;border-radius:999px;border:1px solid var(--lic-line-strong);background:var(--lic-surface);color:var(--lic-ink);transition:background .2s var(--lic-ease)}.lic-account-chip:hover{background:var(--lic-surface-2)}.lic-sync-dot{width:8px;height:8px;border-radius:50%;background:var(--lic-ok)}.lic-sync-dot[data-sync=saving]{background:var(--lic-warn)}.lic-sync-dot[data-sync=error]{background:var(--lic-bad)}@media (max-width:760px){.lic-account{order:2;margin-left:auto}.lic-nav{order:3}}.lic-field{display:grid;gap:6px;font-size:14px;font-weight:600}.lic-input{width:100%;font:inherit;font-size:16px;font-weight:400;padding:12px 14px;border-radius:11px;border:1px solid var(--lic-line-strong);background:var(--lic-surface);color:var(--lic-ink);transition:border-color .15s var(--lic-ease),box-shadow .15s var(--lic-ease)}.lic-input:focus{outline:none;border-color:var(--lic-brand);box-shadow:0 0 0 3px color-mix(in oklch,var(--lic-brand) 22%,transparent)}.lic-input::-moz-placeholder{color:var(--lic-ink-3)}.lic-input::placeholder{color:var(--lic-ink-3)}.lic-tabs{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;border-radius:12px;background:var(--lic-surface-2)}.lic-tabs button{font:inherit;font-size:14.5px;font-weight:600;padding:9px;border-radius:9px;border:0;cursor:pointer;background:transparent;color:var(--lic-ink-2)}.lic-tabs button[aria-selected=true]{background:var(--lic-surface);color:var(--lic-ink);box-shadow:var(--lic-shadow)}.lic-alert{border-radius:12px;padding:12px 14px;font-size:14.5px;line-height:1.5}.lic-alert[data-tone=bad]{background:var(--lic-bad-soft);color:color-mix(in oklch,var(--lic-bad) 75%,var(--lic-ink))}.lic-alert[data-tone=ok]{background:var(--lic-ok-soft);color:color-mix(in oklch,var(--lic-ok) 75%,var(--lic-ink))}