@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;600;700;800&display=swap');
:root{font-family:'Noto Sans KR',sans-serif;color:#233e35;background:#f7f8f5;font-synthesis:none;--green:#214d40;--muted:#7c8880;--line:#e2e7df;--cream:#e8edce}
*{box-sizing:border-box}body{margin:0}button,a,input,select{-webkit-tap-highlight-color:transparent}button,select{font:inherit}button{cursor:pointer;border:0;background:none;color:inherit;touch-action:manipulation;min-height:44px}button:disabled{opacity:.35;cursor:default}button:focus-visible,a:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #a3bd61;outline-offset:3px}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin:0}h1{font-size:32px;letter-spacing:-1.4px;font-weight:700}h2{font-size:20px;letter-spacing:-.65px}h3{font-size:16px}p{line-height:1.8}small{font-size:12px;font-weight:400}.sidebar{position:fixed;inset:0 auto 0 0;width:230px;background:#fff;border-right:1px solid var(--line);padding:36px 20px;display:flex;flex-direction:column;z-index:5}.brand{display:flex;align-items:center;gap:7px;font-size:22px;letter-spacing:-1px;margin-bottom:58px;white-space:nowrap}.brand 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40px;border-radius:12px;margin-bottom:25px}.result-hero strong{display:block;font-size:70px;letter-spacing:-4px}.result-hero small{font-size:18px;letter-spacing:0;color:#7b8a70}.result-hero p{font-size:13px;color:#7d8b72;margin:8px 0 15px}.library-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.library-card{text-align:left;background:#fff;border:1px solid var(--line);border-radius:9px;padding:18px;position:relative}.library-card>span{display:block;font-size:10px;color:var(--muted)}.library-card strong{display:block;font-size:24px;margin:7px 0}.library-card small{font-size:10px;color:#819171}.library-card i{position:absolute;right:12px;bottom:17px;font-size:9px;color:#b47b5d;font-style:normal}dialog{border:1px solid var(--line);border-radius:14px;padding:32px;width:min(850px,94vw);max-height:92dvh;color:#233e35}dialog::backdrop{background:#17352788;backdrop-filter:blur(3px)}dialog h2{margin-bottom:14px}dialog p{font-size:13px;color:var(--muted)}.modal-close{position:sticky;float:right;top:0;background:#eff2e9;border-radius:50%;font-size:25px;width:44px;height:44px;z-index:3}.modal-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:25px}.review-head{margin-bottom:20px}.review-head h2{margin-top:10px}.review-practice{padding:22px;background:#f5f7f1;border-radius:8px;margin:20px 0}.review-practice .answers{margin:15px 0}details{margin:20px 0}summary{cursor:pointer;min-height:48px;padding:15px;border:1px solid var(--line);border-radius:8px;font-size:14px}.solution{padding:15px 0}.solution p{margin:12px 0}.loading{padding:15vh 30px;text-align:center}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%) translateY(120px);opacity:0;transition:.2s;background:#244b3f;color:#fff;border-radius:10px;padding:15px 25px;font-size:13px;z-index:100;max-width:90vw;box-shadow:0 5px 20px #0002}#toast.show{transform:translateX(-50%) translateY(0);opacity:1}
@media(min-width:1600px){main{padding-top:48px}.hero{min-height:350px}.hero h2{font-size:39px}.hero p{font-size:14px}.hero-art{min-height:280px}.stats{padding:28px 0}}
@media(max-width:1200px){.sidebar{width:190px;padding:30px 14px}.brand{font-size:20px}.workspace{margin-left:190px}main{padding:30px 25px}.hero{padding:28px}.stats article{padding:0 18px}.category-card{padding:18px}.exam-layout{grid-template-columns:minmax(0,1fr) 215px;gap:15px}.answer-sheet{padding:16px}.number-grid{gap:5px}.answer-bar{gap:12px;padding:18px}.answers{gap:8px}.answers button{width:46px;height:46px}.question-top{padding:15px 18px 0}.question-label{margin:10px 18px 15px}header{padding:0 25px}footer{margin:0 25px}.time-label{font-size:9px}.library-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:1000px){.sidebar{width:80px;padding:26px 10px}.brand{font-size:0;justify-content:center;margin-bottom:35px}.brand b,.workspace-label,.sidebar-foot{display:none}.brandmark{font-size:23px;margin:0}nav button{font-size:0;display:grid;justify-content:center;gap:6px;padding:13px 8px}nav button span{font-size:24px}nav small{display:none}.workspace{margin-left:80px}.hero{grid-template-columns:1.2fr 1fr}.hero-art{transform:scale(.85)}.hero h2{font-size:30px}.hero-actions{gap:10px}.bottom-grid{grid-template-columns:1.3fr 1fr}.exam-layout{grid-template-columns:minmax(0,1fr)}.answer-sheet{position:static}.number-grid{grid-template-columns:repeat(10,1fr);gap:8px}.number-grid button{min-height:44px}.answer-sheet .wide{max-width:300px;display:block;margin:auto}.legend{justify-content:flex-start;gap:25px}.answer-sheet p{margin-bottom:0}.stats article{padding:0 14px}.stats strong{font-size:30px}.stats article>span{font-size:11px}}
@media(max-width:760px){header{height:62px;padding:0 20px}.save-status{font-size:0}.save-status i{width:7px;height:7px}main{padding:25px 20px}.date-label{display:none}h1{font-size:28px}.hero{grid-template-columns:1fr;min-height:0;padding:28px}.hero-art{display:none}.hero h2{font-size:32px}.hero-actions{margin-top:22px;gap:15px}.hero p{font-size:13px}.category-grid{grid-template-columns:repeat(2,1fr)}.stats{grid-template-columns:repeat(2,1fr);gap:24px 0;padding:22px 0}.stats article:nth-child(2){border:0}.stats article{padding:0 22px}.bottom-grid{grid-template-columns:1fr}.tip{padding:24px}.tip h2 br{display:none}.tip p{max-width:none}footer{flex-direction:column;align-items:flex-start;margin:0 20px;line-height:1.8;font-size:10px}.exam-heading{flex-wrap:wrap;gap:14px}.exam-heading h1{font-size:22px}.exam-heading .timer{font-size:20px}.exam-heading>.outline{min-height:40px;padding:8px 12px;font-size:11px}.answer-bar{flex-wrap:wrap;gap:12px}.answer-bar>span{width:100%}.question-top .flag{margin-left:0}.question-top{gap:8px}.question-label{gap:10px}.question-label h2{font-size:18px}.question-bottom{padding:15px}.question-bottom .primary,.question-bottom .outline{padding:10px 12px}.number-grid{grid-template-columns:repeat(10,1fr);gap:5px}.review-row{gap:10px;flex-wrap:wrap}.row-meta{font-size:10px}.result-hero{gap:25px;padding:25px;flex-wrap:wrap}.result-hero strong{font-size:55px}.result-hero h2{font-size:18px}.library-grid{grid-template-columns:repeat(3,1fr)}.panel{padding:20px}.section-heading{align-items:flex-start}.section-heading>span{font-size:10px}dialog{padding:20px}.filters button{font-size:11px;padding:8px 12px}}
@media(max-width:520px){.sidebar{position:static;width:100%;height:auto;padding:12px 15px;border-right:0;border-bottom:1px solid var(--line);display:block}.brand{font-size:18px;margin:0 0 12px;justify-content:flex-start}.brand b{display:inline}.brandmark{font-size:18px;width:29px;height:30px;margin-right:4px}nav{display:flex;gap:3px}nav button{font-size:11px;display:flex;gap:6px;flex:1;justify-content:center;padding:9px 5px;min-height:44px}nav button span{font-size:17px;width:17px}.workspace{margin-left:0}header{height:49px;font-size:10px}main{padding:24px 15px}.hero{padding:24px}.hero h2{font-size:30px}.hero-actions{align-items:flex-start;flex-direction:column}.stats article>span{font-size:12px}.category-card{padding:18px}.number-grid{grid-template-columns:repeat(5,1fr);gap:8px}.question-top .muted{font-size:10px}.original{padding:0 4px 15px}.question-label{margin:10px 14px 15px}.answer-bar{padding:16px}.answers button{width:48px;height:48px}.answer-bar .text-link{margin-left:0}.question-bottom>span{font-size:10px}.review-row .pill{font-size:10px}.review-row .row-meta{display:none}.status{margin-left:auto}.library-grid{grid-template-columns:repeat(3,1fr);gap:8px}.library-card{padding:13px}.library-card>span{font-size:9px}.exam-heading>.outline{margin-left:auto}.exam-heading>div:first-child{flex-basis:60%}footer{margin:0 15px}}
@media(pointer:coarse){.number-grid button{min-height:44px}.flag,.text-link{min-height:44px}.stats .text-link{min-height:30px}.question-image{touch-action:pan-x pan-y pinch-zoom}}

.source-note{padding:12px 15px;background:#fff5df;border:1px solid #eadbb2;border-radius:6px;font-size:12px;color:#88703e;margin:12px 0;line-height:1.7}