.quiz[data-astro-cid-g3nkklqa]{display:flex;flex-direction:column;gap:1rem}.quiz-title[data-astro-cid-g3nkklqa]{margin:0 0 var(--sp-3);font-size:var(--fs-7);letter-spacing:.01em;padding-bottom:.3rem;border-bottom:1px solid var(--rule);color:var(--ink)}.kicker[data-astro-cid-g3nkklqa]{font-family:DM Mono,Noto Sans KR,monospace;font-size:var(--fs-1);letter-spacing:.1em;color:var(--muted);margin-left:var(--sp-2);font-weight:500}.q-card[data-astro-cid-g3nkklqa]{position:relative;background:var(--card);border:1px solid var(--rule);border-radius:var(--r-lg);padding:1.1rem;overflow:visible}.q-head[data-astro-cid-g3nkklqa]{display:flex;align-items:center;gap:.55rem;margin-bottom:.7rem}.chip[data-astro-cid-g3nkklqa]{font-size:var(--fs-1);font-weight:700;padding:.15rem .6rem;border-radius:var(--r-pill);border:1px solid var(--rule);color:var(--muted)}.chip[data-astro-cid-g3nkklqa].lv-basic{color:var(--mint);border-color:rgba(var(--mint-rgb),.45);background:rgba(var(--mint-rgb),.1)}.chip[data-astro-cid-g3nkklqa].lv-exam{color:var(--ac);border-color:rgba(var(--ac-rgb),.45);background:rgba(var(--ac-rgb),.1)}.chip[data-astro-cid-g3nkklqa].lv-hard{color:#f5a742;border-color:#f5a74273;background:#f5a7421a}.q-idx[data-astro-cid-g3nkklqa]{font-family:DM Mono,monospace;font-size:var(--fs-3);color:var(--muted)}.q-text[data-astro-cid-g3nkklqa]{margin:0 0 .9rem;font-weight:600}.choices[data-astro-cid-g3nkklqa]{display:grid;gap:.5rem;max-width:640px}.choice[data-astro-cid-g3nkklqa]{display:flex;align-items:center;gap:.6rem;text-align:left;background:var(--surface);border:1px solid var(--rule);border-radius:var(--r-sm);padding:.55rem .75rem;cursor:pointer;color:var(--ink);font-size:var(--fs-6);transition:border-color var(--t-micro) var(--ease-glide)}.choice[data-astro-cid-g3nkklqa]:not(:disabled):hover{border-color:var(--ac)}.choice[data-astro-cid-g3nkklqa]:disabled{cursor:default}.choice[data-astro-cid-g3nkklqa].correct{border-color:var(--mint);background:rgba(var(--mint-rgb),.12)}.choice[data-astro-cid-g3nkklqa].wrong{border-color:var(--danger);background:rgba(var(--danger-rgb),.12)}.mark[data-astro-cid-g3nkklqa]{flex:none;width:1.3rem;text-align:center;font-family:DM Mono,monospace;color:var(--muted)}.correct[data-astro-cid-g3nkklqa] .mark[data-astro-cid-g3nkklqa]{color:var(--mint)}.wrong[data-astro-cid-g3nkklqa] .mark[data-astro-cid-g3nkklqa]{color:var(--danger)}.feedback[data-astro-cid-g3nkklqa]{margin-top:.8rem;padding:.7rem .85rem;border-radius:var(--r-sm);font-size:var(--fs-5);display:flex;flex-direction:column;gap:.3rem}[data-astro-cid-g3nkklqa][hidden]{display:none!important}.feedback[data-astro-cid-g3nkklqa].ok{background:rgba(var(--mint-rgb),.1)}.feedback[data-astro-cid-g3nkklqa].no{background:rgba(var(--ac-rgb),.08)}.feedback[data-astro-cid-g3nkklqa] .sol[data-astro-cid-g3nkklqa]{color:var(--muted)}.back[data-astro-cid-g3nkklqa]{margin-top:.55rem;padding-top:.55rem;border-top:1px dashed var(--rule)}.back-t[data-astro-cid-g3nkklqa]{margin:0 0 .4rem;font-size:var(--fs-3);color:var(--muted)}.back-list[data-astro-cid-g3nkklqa]{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.4rem}.back-list[data-astro-cid-g3nkklqa] a[data-astro-cid-g3nkklqa]{display:inline-flex;align-items:baseline;flex-wrap:wrap;gap:.4rem;padding:.3rem .6rem;border:1px solid var(--rule);border-radius:var(--r-pill);background:var(--surface);text-decoration:none;color:var(--ink);font-size:var(--fs-4);transition:border-color var(--t-micro) var(--ease-glide)}.back-list[data-astro-cid-g3nkklqa] a[data-astro-cid-g3nkklqa]:hover{border-color:var(--ac)}.back-list[data-astro-cid-g3nkklqa] a[data-astro-cid-g3nkklqa]:before{content:"↩";color:var(--ac)}.bt[data-astro-cid-g3nkklqa]{font-weight:600}.bv[data-astro-cid-g3nkklqa]{color:var(--muted);font-size:var(--fs-3)}.bg[data-astro-cid-g3nkklqa]{font-family:DM Mono,monospace;font-size:var(--fs-1);color:var(--muted)}.confetti[data-astro-cid-g3nkklqa]{position:absolute;top:1.5rem;left:50%;width:0;height:0;pointer-events:none}.confetti[data-astro-cid-g3nkklqa] span[data-astro-cid-g3nkklqa]{position:absolute;width:8px;height:8px;border-radius:2px;opacity:0;animation:pop-confetti .9s var(--ease-settle) forwards;animation-delay:var(--delay)}@keyframes pop-confetti{0%{opacity:1;transform:translate(0) rotate(0)}to{opacity:0;transform:translate(var(--dx),var(--dy)) rotate(var(--rot))}}.ex[data-astro-cid-5rebxwed]{display:flex;flex-direction:column;gap:1rem;margin-bottom:1.5rem}.ex-title[data-astro-cid-5rebxwed]{margin:0 0 var(--sp-3);font-size:var(--fs-7);letter-spacing:.01em;padding-bottom:.3rem;border-bottom:1px solid var(--rule);color:var(--ink)}.kicker[data-astro-cid-5rebxwed]{font-family:DM Mono,Noto Sans KR,monospace;font-size:var(--fs-1);letter-spacing:.1em;color:var(--muted);margin-left:var(--sp-2);font-weight:500}.ex-card[data-astro-cid-5rebxwed]{background:var(--card);border:1px solid var(--rule);border-radius:var(--r-lg);padding:1.1rem}.ex-head[data-astro-cid-5rebxwed]{display:flex;align-items:center;gap:.55rem;margin-bottom:.7rem}.chip[data-astro-cid-5rebxwed]{font-size:var(--fs-1);font-weight:700;padding:.15rem .6rem;border-radius:var(--r-pill);border:1px solid var(--rule);color:var(--muted)}.chip[data-astro-cid-5rebxwed].lv-basic{color:var(--mint);border-color:rgba(var(--mint-rgb),.45);background:rgba(var(--mint-rgb),.1)}.chip[data-astro-cid-5rebxwed].lv-exam{color:var(--ac);border-color:rgba(var(--ac-rgb),.45);background:rgba(var(--ac-rgb),.1)}.chip[data-astro-cid-5rebxwed].lv-hard{color:#f5a742;border-color:#f5a74273;background:#f5a7421a}.ex-idx[data-astro-cid-5rebxwed]{font-family:DM Mono,monospace;font-size:var(--fs-3);color:var(--muted)}.ex-q[data-astro-cid-5rebxwed]{margin:0;font-weight:600;line-height:1.7}.ex-hint[data-astro-cid-5rebxwed]{margin:.7rem 0 0;font-size:var(--fs-5);color:var(--muted)}.ex-steps[data-astro-cid-5rebxwed]{list-style:none;counter-reset:step;margin:1rem 0 0;padding:0;display:flex;flex-direction:column;gap:.85rem}.ex-step[data-astro-cid-5rebxwed]{counter-increment:step;position:relative;padding-left:2rem;animation:step-in .22s var(--ease-glide)}.ex-step[data-astro-cid-5rebxwed]:before{content:counter(step);position:absolute;left:0;top:.1rem;width:1.4rem;height:1.4rem;display:grid;place-items:center;border-radius:var(--r-pill);background:rgba(var(--ac-rgb),.12);color:var(--ac);font-family:DM Mono,monospace;font-size:var(--fs-2)}[data-astro-cid-5rebxwed][hidden]{display:none!important}@keyframes step-in{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.ex-math[data-astro-cid-5rebxwed]{font-size:var(--fs-7)}.ex-note[data-astro-cid-5rebxwed]{margin:.3rem 0 0;color:var(--muted);font-size:var(--fs-5);line-height:1.6}.ex-answer[data-astro-cid-5rebxwed]{display:flex;align-items:baseline;gap:.5rem;margin:1rem 0 0;padding:.6rem .8rem;border-radius:var(--r-sm);background:rgba(var(--mint-rgb),.1);font-weight:600}.ans-label[data-astro-cid-5rebxwed]{font-size:var(--fs-3);font-weight:700;color:var(--mint)}.ex-trap[data-astro-cid-5rebxwed]{margin:.6rem 0 0;font-size:var(--fs-5);line-height:1.6;color:var(--muted)}.trap-label[data-astro-cid-5rebxwed]{font-weight:700;color:#f5a742;margin-right:.35rem}.ex-controls[data-astro-cid-5rebxwed]{display:flex;align-items:center;gap:.5rem;margin-top:1rem;flex-wrap:wrap}.btn[data-astro-cid-5rebxwed]{background:var(--surface);border:1px solid var(--rule);color:var(--ink);border-radius:var(--r-sm);padding:.4rem .85rem;font-size:var(--fs-5);cursor:pointer;transition:border-color var(--t-micro) var(--ease-glide)}.btn[data-astro-cid-5rebxwed]:hover{border-color:var(--ac)}.btn[data-astro-cid-5rebxwed].primary{background:rgba(var(--ac-rgb),.12);border-color:rgba(var(--ac-rgb),.4);color:var(--ac);font-weight:600}.ex-counter[data-astro-cid-5rebxwed]{margin-left:auto;font-family:DM Mono,monospace;font-size:var(--fs-3);color:var(--muted)}@media(prefers-reduced-motion:reduce){.ex-step[data-astro-cid-5rebxwed]{animation:none}}.sub-body[data-astro-cid-lwsjntep]{margin-bottom:1.5rem}.sub-body[data-astro-cid-lwsjntep] astro-island{display:block;background:var(--surface);border:1px solid var(--rule);border-radius:var(--r-xl);padding:var(--sp-4);margin:var(--sp-6) 0}.sub-body[data-astro-cid-lwsjntep] astro-island>*{max-width:520px;margin-inline:auto}@media(max-width:480px){.sub-body[data-astro-cid-lwsjntep] astro-island{padding:var(--sp-3)}}.sub-body[data-astro-cid-lwsjntep] h2{font-size:var(--fs-7);letter-spacing:.01em;margin-top:2rem;padding-bottom:.3rem;border-bottom:1px solid var(--rule);color:var(--ink)}.sub-body[data-astro-cid-lwsjntep] h2:first-child{margin-top:0}.sub-body[data-astro-cid-lwsjntep] table{width:100%;border-collapse:collapse;margin:1rem 0;display:block;overflow-x:auto;font-variant-numeric:tabular-nums}.sub-body[data-astro-cid-lwsjntep] th,.sub-body[data-astro-cid-lwsjntep] td{border:1px solid var(--rule);padding:.5rem .75rem;text-align:left}.sub-body[data-astro-cid-lwsjntep] th{background:var(--card);font-size:var(--fs-4);color:var(--muted);font-weight:700}.sub-body[data-astro-cid-lwsjntep] tbody tr:nth-child(2n){background:rgba(var(--ac-rgb),.035)}@media(max-width:480px){.sub-body[data-astro-cid-lwsjntep] th,.sub-body[data-astro-cid-lwsjntep] td{padding:.35rem .5rem;font-size:var(--fs-4)}}.sub-body[data-astro-cid-lwsjntep] li{margin-bottom:.4rem}.sub-body[data-astro-cid-lwsjntep] .katex-display{overflow-x:auto;overflow-y:hidden;padding:.3rem 0}@media(max-width:768px){.sub-body[data-astro-cid-lwsjntep] p,.sub-body[data-astro-cid-lwsjntep] ul,.sub-body[data-astro-cid-lwsjntep] ol{overflow-x:auto;overflow-y:hidden}}.sub-body[data-astro-cid-lwsjntep] [data-astro-cid-lwsjntep]:is(h2,h3){scroll-margin-top:var(--sp-4)}.paid-slot[data-astro-cid-lwsjntep]{scroll-margin-top:var(--sp-4)}.rail[data-astro-cid-3oqcgbre]{display:none}@media(min-width:1320px){.rail[data-astro-cid-3oqcgbre]{display:block;position:fixed;top:50%;left:calc(50% + 480px + var(--sp-4));transform:translateY(-50%);width:140px;z-index:10}.rail[data-astro-cid-3oqcgbre] ol[data-astro-cid-3oqcgbre]{margin:0;padding:0;list-style:none}.rail[data-astro-cid-3oqcgbre] a[data-astro-cid-3oqcgbre]{display:flex;align-items:center;gap:var(--sp-2);padding:var(--sp-1) 0 var(--sp-1) var(--sp-2);border-left:2px solid var(--rule);color:var(--muted);font-size:var(--fs-3);line-height:1.4;transition:color var(--t-micro) var(--ease-glide),border-color var(--t-micro) var(--ease-glide)}.rail[data-astro-cid-3oqcgbre] a[data-astro-cid-3oqcgbre]:hover{color:var(--ink);text-decoration:none}.rail-dot[data-astro-cid-3oqcgbre]{width:6px;height:6px;flex:none;border-radius:50%;border:1px solid var(--rule);transition:background var(--t-micro) var(--ease-glide)}.rail[data-astro-cid-3oqcgbre] a[data-astro-cid-3oqcgbre][aria-current=true]{color:var(--ink);border-left-color:var(--ac)}.rail[data-astro-cid-3oqcgbre] a[data-astro-cid-3oqcgbre][aria-current=true] .rail-dot[data-astro-cid-3oqcgbre]{background:var(--ac);border-color:var(--ac)}}#예제[data-astro-cid-3oqcgbre],#퀴즈[data-astro-cid-3oqcgbre],#이어서[data-astro-cid-3oqcgbre],#완료[data-astro-cid-3oqcgbre]{scroll-margin-top:var(--sp-4)}.progress-track[data-astro-cid-3oqcgbre]{position:fixed;top:0;left:0;right:0;height:3px;background:transparent;z-index:50}.progress-bar[data-astro-cid-3oqcgbre]{height:100%;background:var(--ac);transform:scaleX(0);transform-origin:left center}.crumb[data-astro-cid-3oqcgbre]{display:flex;align-items:center;gap:.45rem;margin:0 0 1.25rem;font-size:var(--fs-5);color:var(--muted);flex-wrap:wrap}.crumb[data-astro-cid-3oqcgbre] span[data-astro-cid-3oqcgbre]{color:var(--rule)}.toc-mobile[data-astro-cid-3oqcgbre]{margin:0 0 1.5rem;border:1px solid var(--rule);border-radius:var(--r-md);background:var(--card)}@media(min-width:1320px){.toc-mobile[data-astro-cid-3oqcgbre]{display:none}}.toc-mobile[data-astro-cid-3oqcgbre] summary[data-astro-cid-3oqcgbre]{display:flex;align-items:center;gap:.5rem;padding:.6rem .9rem;cursor:pointer;font-size:var(--fs-5);font-weight:600;color:var(--ink);list-style:none}.toc-mobile[data-astro-cid-3oqcgbre] summary[data-astro-cid-3oqcgbre]::-webkit-details-marker{display:none}.toc-mobile[data-astro-cid-3oqcgbre] summary[data-astro-cid-3oqcgbre]:after{content:"▾";margin-left:auto;color:var(--muted);font-size:var(--fs-3);transition:transform var(--t-micro) var(--ease-glide)}.toc-mobile[data-astro-cid-3oqcgbre][open] summary[data-astro-cid-3oqcgbre]:after{transform:rotate(180deg)}.toc-count[data-astro-cid-3oqcgbre]{font-family:DM Mono,monospace;font-size:var(--fs-2);color:var(--muted)}.toc-mobile[data-astro-cid-3oqcgbre] ol[data-astro-cid-3oqcgbre]{margin:0;padding:.3rem .9rem .8rem;border-top:1px solid var(--rule);list-style:none;display:grid;gap:.1rem}.toc-mobile[data-astro-cid-3oqcgbre] a[data-astro-cid-3oqcgbre]{display:block;padding:.4rem .3rem;border-radius:var(--r-sm);color:var(--muted);font-size:var(--fs-5);text-decoration:none}.toc-mobile[data-astro-cid-3oqcgbre] a[data-astro-cid-3oqcgbre]:hover{color:var(--ink)}.toc-mobile[data-astro-cid-3oqcgbre] a[data-astro-cid-3oqcgbre][aria-current=true]{color:var(--ac);font-weight:700;background:rgba(var(--ac-rgb),.08)}.sub-head[data-astro-cid-3oqcgbre]{margin-bottom:1.75rem}.sub-num[data-astro-cid-3oqcgbre]{display:block;font-family:DM Mono,monospace;font-size:var(--fs-3);letter-spacing:.08em;color:var(--ac)}.sub-head[data-astro-cid-3oqcgbre] h1[data-astro-cid-3oqcgbre]{margin:.35rem 0 0;font-size:2rem;line-height:1.3;word-break:keep-all}.sub-sum[data-astro-cid-3oqcgbre]{margin:.7rem 0 0;color:var(--muted);font-size:.98rem;line-height:1.7}.teach[data-astro-cid-3oqcgbre]{margin:1rem 0 1.25rem;border:1px solid rgba(var(--mint-rgb),.3);border-radius:var(--r-md);background:rgba(var(--mint-rgb),.06)}.teach[data-astro-cid-3oqcgbre]>summary[data-astro-cid-3oqcgbre]{display:flex;align-items:center;gap:.5rem;padding:.6rem .9rem;cursor:pointer;font-size:var(--fs-5);font-weight:600;color:var(--ink);list-style:none}.teach[data-astro-cid-3oqcgbre]>summary[data-astro-cid-3oqcgbre]::-webkit-details-marker{display:none}.teach[data-astro-cid-3oqcgbre]>summary[data-astro-cid-3oqcgbre]:after{content:"▾";margin-left:auto;color:var(--muted);font-size:var(--fs-3);transition:transform var(--t-micro) var(--ease-glide)}.teach[data-astro-cid-3oqcgbre][open]>summary[data-astro-cid-3oqcgbre]:after{transform:rotate(180deg)}.teach-icon[data-astro-cid-3oqcgbre]{font-size:1rem}.teach-tag[data-astro-cid-3oqcgbre]{font-size:.66rem;font-weight:700;letter-spacing:.02em;color:var(--mint);border:1px solid rgba(var(--mint-rgb),.45);border-radius:var(--r-pill);padding:.05rem .42rem}.teach-body[data-astro-cid-3oqcgbre]{margin:0;padding:.2rem .9rem .9rem;border-top:1px solid rgba(var(--mint-rgb),.22)}.teach-body[data-astro-cid-3oqcgbre] dt[data-astro-cid-3oqcgbre]{margin-top:.85rem;font-size:var(--fs-3);font-weight:700;color:var(--mint)}.teach-body[data-astro-cid-3oqcgbre] dd[data-astro-cid-3oqcgbre]{margin:.3rem 0 0;font-size:var(--fs-5);line-height:1.75;color:var(--ink)}.teach-body[data-astro-cid-3oqcgbre] b{font-weight:700}.teach-q[data-astro-cid-3oqcgbre]{margin:0;padding:.5rem .75rem;border-left:3px solid var(--mint);background:var(--card);border-radius:0 8px 8px 0;font-weight:600}.teach-a[data-astro-cid-3oqcgbre]{margin:.45rem 0 0;font-size:var(--fs-5);line-height:1.7;color:var(--muted)}.sub-links[data-astro-cid-3oqcgbre]{margin-top:1.5rem;padding-top:1rem;border-top:1px dashed var(--rule)}.sl-title[data-astro-cid-3oqcgbre]{margin:0 0 .6rem;font-size:var(--fs-3);font-weight:700;letter-spacing:.02em;color:var(--muted)}.sl-list[data-astro-cid-3oqcgbre]{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.5rem}.sl-chip[data-astro-cid-3oqcgbre]{display:inline-block;font-size:var(--fs-4);font-weight:600;padding:.4rem .8rem;border:1px solid var(--rule);border-radius:var(--r-pill);background:var(--card);color:var(--ink);transition:border-color var(--t-micro) var(--ease-glide),transform var(--t-micro) var(--ease-glide)}.sl-slide[data-astro-cid-3oqcgbre]{border-color:rgba(var(--mint-rgb),.4);color:var(--mint)}.sl-chip[data-astro-cid-3oqcgbre]:hover{text-decoration:none;border-color:var(--ac);transform:translateY(-1px)}.sl-person[data-astro-cid-3oqcgbre]:hover{border-color:var(--mint)}.sl-life[data-astro-cid-3oqcgbre]:hover{border-color:#f5a742}.done-box[data-astro-cid-3oqcgbre]{margin-top:2.25rem;padding-top:1.5rem;border-top:1px solid var(--rule);text-align:center}.done-btn[data-astro-cid-3oqcgbre]{display:inline-flex;align-items:center;gap:.6rem;padding:.7rem 1.5rem;border:1px solid var(--rule);border-radius:var(--r-pill);background:var(--card);color:var(--ink);font-size:1rem;font-weight:600;cursor:pointer;transition:border-color var(--t-micro) var(--ease-glide),background var(--t-micro) var(--ease-glide)}.done-btn[data-astro-cid-3oqcgbre]:hover{border-color:var(--mint)}.done-btn[data-astro-cid-3oqcgbre].is-done{border-color:var(--mint);background:rgba(var(--mint-rgb),.14);color:var(--mint)}.done-mark[data-astro-cid-3oqcgbre]{font-family:DM Mono,monospace}.done-note[data-astro-cid-3oqcgbre]{margin:.65rem 0 0;font-size:var(--fs-3);color:var(--muted)}.sub-nav[data-astro-cid-3oqcgbre]{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-top:2.5rem}.sub-nav[data-astro-cid-3oqcgbre] a[data-astro-cid-3oqcgbre]{display:flex;flex-direction:column;gap:.25rem;padding:.85rem 1rem;border:1px solid var(--rule);border-radius:var(--r-lg);background:var(--card);text-decoration:none;color:var(--ink);transition:border-color var(--t-micro) var(--ease-glide)}.sub-nav[data-astro-cid-3oqcgbre] a[data-astro-cid-3oqcgbre]:hover{border-color:var(--ac)}.nav-next[data-astro-cid-3oqcgbre]{text-align:right}.nav-dir[data-astro-cid-3oqcgbre]{font-family:DM Mono,monospace;font-size:var(--fs-2);color:var(--ac)}.nav-title[data-astro-cid-3oqcgbre]{font-size:var(--fs-6);font-weight:600;line-height:1.4;word-break:keep-all}@media(max-width:768px){.sub-nav[data-astro-cid-3oqcgbre]{grid-template-columns:1fr}.nav-next[data-astro-cid-3oqcgbre]{text-align:left}.sub-head[data-astro-cid-3oqcgbre] h1[data-astro-cid-3oqcgbre]{font-size:1.6rem}}