*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{color:#222;min-height:100dvh;padding-bottom:env(safe-area-inset-bottom);background:#f3f5f9;margin:0;font-family:Pretendard,Apple SD Gothic Neo,Malgun Gothic,Noto Sans KR,sans-serif}a{color:#2d4bd8}header.top{padding:12px 16px;padding-top:calc(12px + env(safe-area-inset-top));color:#fff;z-index:20;background:#2d4bd8;justify-content:space-between;align-items:center;gap:8px;display:flex;position:sticky;top:0}header.top button,header.top a.hb{color:#fff;background:#fff3;border:0;border-radius:8px;margin:2px;padding:8px 14px;font-size:15px;text-decoration:none}nav.tabs{background:#fff;border-bottom:1px solid #ddd;gap:4px;padding:8px;display:flex;overflow-x:auto}nav.tabs a{color:#222;white-space:nowrap;background:#fff;border:1px solid #ccd;border-radius:8px;padding:8px 14px;font-size:15px;text-decoration:none}nav.tabs a.on,.seg button.on{color:#fff;background:#2d4bd8;border-color:#2d4bd8}main{max-width:1000px;margin:auto;padding:12px}.card{background:#fff;border-radius:12px;margin-bottom:12px;padding:16px;box-shadow:0 1px 3px #0001}.card h3{margin-top:0}button{cursor:pointer;color:inherit;background:#fff;border:1px solid #ccd;border-radius:8px;margin:2px;padding:8px 14px;font-family:inherit;font-size:15px}a.btnlink{color:#222;background:#fff;border:1px solid #ccd;border-radius:8px;margin:2px;padding:8px 14px;font-size:15px;text-decoration:none;display:inline-block}button.primary{color:#fff;background:#2d4bd8;border:0}button.danger{color:#d33}button.sm{padding:3px 8px;font-size:12px}button:disabled{cursor:not-allowed;opacity:.6}input,select,textarea{color:#222;background:#fff;border:1px solid #ccd;border-radius:8px;width:100%;margin-top:4px;padding:9px;font-family:inherit;font-size:16px}.grid{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px;margin-bottom:10px;display:grid}label{color:#555;font-size:13px}.chk{color:#222;align-items:center;gap:4px;margin-right:12px;font-size:15px;display:inline-flex}.chk input{width:auto;margin:0}.tbl{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:center;border-bottom:1px solid #eee;padding:8px}th{background:#f7f8fb}.login{text-align:center;background:#fff;border-radius:16px;max-width:380px;margin:60px auto;padding:28px;box-shadow:0 2px 10px #0001}.login form{flex-direction:column;gap:2px;display:flex}.seg{margin:16px 0;display:flex}.seg button{flex:1}.hint{color:#888;font-size:12px;line-height:1.6}.err{color:#d33;margin:6px 0;font-size:13px}.okmsg{color:#12915f;white-space:pre-line;margin:6px 0;font-size:13px}.bar{background:#e5e8f0;border-radius:5px;height:10px;margin-top:4px;overflow:hidden}.bar i{background:#2d4bd8;height:100%;display:block}.bar.g i{background:#3a9d5d}.stat{flex-wrap:wrap;gap:16px;display:flex}.stat>div{flex:1;min-width:140px}.hogrid{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.ho{text-align:center;background:#fff;border:2px solid #dde;border-radius:10px;margin:0;padding:12px 4px}.ho small{color:#777;margin-top:3px;font-size:11px;display:block}.ho.cur{border-color:#2d4bd8}.ho.sel{background:#eef1ff}.ho.done{background:#e8f6ec}.ho.none{opacity:.4}.q{background:#fff;border:1px solid #e3e6ef;border-radius:10px;margin-bottom:10px;padding:12px}.q.correct,.q.ok{background:#f2fbf5;border-color:#3a9d5d}.q.wrong{background:#fff4f4;border-color:#d33}.q.pending,.q.photo{background:#fffaf0;border-color:#e08a00}.exlist{flex-wrap:wrap;gap:6px;margin-top:6px;display:flex}.exlist span{color:#2d4bd8;background:#f1f4ff;border:1px solid #dbe2ff;border-radius:8px;padding:3px 9px;font-size:13px;font-weight:700}.blanks{flex-direction:column;gap:8px;margin:10px 0 4px;display:flex}.bk{align-items:center;gap:10px;display:flex}.bkl{text-align:right;color:#6b7386;flex:none;min-width:40px;font-size:14px;font-weight:700}.bk input{color:#232838;background:#f7f8fb;border:1.5px solid #d7dce8;border-radius:22px;flex:1;min-width:0;margin:0;padding:11px 18px;font-size:16px}.bk input::placeholder{color:#aab1c4}.bk input:focus{background:#fff;border-color:#2d4bd8;outline:none;box-shadow:0 0 0 3px #2d4bd81a}.bkv{color:#2d4bd8;background:#f7f8fb;border:1.5px solid #d7dce8;border-radius:22px;flex:1;min-width:0;padding:11px 18px;font-size:15px;font-weight:700}.bkv.ok{color:#12915f;background:#f3fbf7;border-color:#b7e3cd}.bkv.no{color:#c0271c;background:#fdf6f5;border-color:#f0c4bd}.qh{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:8px;display:flex}.tag{background:#eef;border-radius:10px;padding:2px 8px;font-size:12px}.tag.a{color:#2d4bd8;background:#e8f0ff}.tag.i{color:#555;background:#eef0f5}.okc{color:#3a9d5d;font-weight:700}.ng{color:#d33;font-weight:700}.warn{color:#e08a00;font-weight:700}.mc{flex-wrap:wrap;gap:4px;display:flex}.mc button{border-radius:50%;width:54px;height:54px;font-size:20px}.mc button.x{color:#d33;opacity:1;background:#fdd;text-decoration:line-through}.mc button.o{color:#fff;opacity:1;background:#3a9d5d}.answer{color:#d33;background:#fff;border:1px dashed #d33;border-radius:8px;margin-top:8px;padding:8px;font-weight:700;overflow:hidden}.model{color:#2a7a46;white-space:pre-wrap;background:#fff;border:1px dashed #3a9d5d;border-radius:8px;margin-top:8px;padding:8px}.tries{color:#888;margin-top:6px;font-size:12px}.row{align-items:center;gap:6px;display:flex}.row input{flex:1;margin:0}.logo{width:auto;height:26px;display:block}.lgb{align-items:center;gap:9px;min-width:0;display:flex}.lgb b{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.lg{width:100%;max-width:320px;height:auto;margin:0 auto 2px;display:block}.ch{width:118px;height:auto;margin:2px auto 6px;display:block}.ch2{float:right;width:60px;height:auto;margin:-8px 0 2px 8px}.ch3{flex:none;width:30px;height:auto;margin-left:auto}.ch4{float:left;width:62px;height:auto;margin:-10px 10px -4px 0}.cheertxt{color:#e08a00;font-size:13px}.phs{flex-wrap:wrap;gap:8px;margin:6px 0;display:flex}.phs img{object-fit:cover;border:1px solid #ddd;border-radius:8px;width:96px;height:96px}.phs.big img{cursor:zoom-in;width:170px;height:auto}.shbtn{color:#2d4bd8;cursor:pointer;background:#f6f8ff;border:1px dashed #2d4bd8;border-radius:10px;align-items:center;gap:6px;padding:10px 16px;font-size:14px;font-weight:700;display:inline-flex}.shbtn input{display:none}.ov{z-index:50;background:#0007;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.md{text-align:center;background:#fff;border-radius:18px;width:100%;max-width:400px;padding:24px 20px;box-shadow:0 8px 30px #0003}.ci{background:#e6f7f1;border-radius:50%;justify-content:center;align-items:center;width:104px;height:104px;margin:0 auto 14px;display:flex}.ci img{width:84px;height:auto;display:block}.md h3{margin:0 0 10px;font-size:19px}.md p{color:#777;white-space:pre-line;margin:0 0 14px;font-size:14px;line-height:1.65}.warnbox{text-align:left;background:#fff4e5;border-radius:12px;align-items:flex-start;gap:8px;margin:0 0 16px;padding:11px 12px;display:flex}.warnbox b{color:#c2410c;font-size:13px;line-height:1.5}.wi{color:#fff;text-align:center;background:#f97316;border-radius:50%;flex:none;width:20px;height:20px;font-size:13px;font-weight:700;line-height:20px}.cta{color:#fff;background:#12915f;border:0;border-radius:12px;width:100%;margin:0;padding:15px;font-size:16px;font-weight:700}.later{color:#999;background:0 0;border:0;width:100%;margin:0;padding:11px;font-size:13px;display:block}.study{text-align:center;padding:4px 0 8px}.stag{color:#6d28d9;background:#ede9fe;border-radius:12px;margin-bottom:12px;padding:4px 13px;font-size:12px;font-weight:700;display:inline-block}.study h3{color:#12915f;margin:0 0 10px;font-size:19px}.study p{color:#777;text-align:left;margin:0 0 8px;font-size:13px;line-height:1.75}.study p b{color:#fff;background:#1f2937;border-radius:6px;padding:2px 7px}.tmr{color:#12915f;letter-spacing:2px;font-variant-numeric:tabular-nums;margin:22px 0 20px;font-size:52px;font-weight:700}.pbtn{color:#555;background:#f1f0f7;border:0;border-radius:12px;width:100%;margin:0 0 9px;padding:14px;font-size:15px}.abtn{color:#fff;background:#1f2937;border:0;border-radius:12px;width:100%;margin:0;padding:16px;font-size:16px;font-weight:700}.tip{text-align:left;background:#fffbeb;border-radius:12px;align-items:flex-start;gap:8px;margin:16px 0 0;padding:12px;display:flex}.tip span{color:#b45309;font-size:12.5px;font-weight:700;line-height:1.6}.badge{color:#2d4bd8;background:#e8f0ff;border-radius:11px;align-items:center;gap:5px;margin:2px 0 6px;padding:4px 11px;font-size:12px;font-weight:700;display:inline-flex}.fbar{padding:10px 14px;padding-bottom:calc(10px + env(safe-area-inset-bottom));z-index:40;background:#fff;border-top:1px solid #e3e6ef;align-items:center;gap:10px;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -2px 12px #0001}.fbar button{margin:0}.fbar .ex{color:#555;background:0 0;border:0;padding:12px 8px;font-size:15px;font-weight:700}.fbar .sb{color:#fff;background:#12915f;border:0;border-radius:12px;flex:1;padding:15px;font-size:16px;font-weight:700}.pad{padding-bottom:86px}.wknav{top:calc(56px + env(safe-area-inset-top));z-index:6;background:#fff;border-bottom:1px solid #eef0f6;align-items:center;gap:8px;margin:12px 0 2px;padding:8px 0;display:flex;position:sticky;overflow-x:auto}.wknav>b{color:#7b8296;white-space:nowrap;font-size:12px}.wkbtn{color:#454b5e;background:#f7f8fb;border:1px solid #dfe3ee;border-radius:10px;flex:1;min-width:48px;padding:9px 0;font-size:13px;font-weight:700}.wkbtn.on{color:#fff;background:#2d4bd8;border-color:#2d4bd8}.wk{color:#2d4bd8;border-bottom:2px solid #e8f0ff;margin:16px 0 8px;padding-bottom:4px;scroll-margin-top:120px;font-size:13px;font-weight:700}.modes{flex-direction:column;gap:12px;margin-top:8px;display:flex}.mode{text-align:left;background:#fff;border:1.5px solid #d7dce8;border-radius:16px;align-items:center;gap:14px;width:100%;padding:16px;display:flex}.mode:hover{background:#f7f8fb;border-color:#2d4bd8}.mode img{object-fit:contain;flex:none;width:62px;height:62px}.mode b{color:#232838;font-size:16px;display:block}.mode small{color:#7b8296;margin-top:4px;font-size:13px;display:block}header.top .mtag{color:#454b5e;background:#fff;border-radius:999px;align-items:center;gap:6px;margin:0 4px 0 auto;padding:6px 13px;font-size:13px;font-weight:700;display:inline-flex}.mtag img{object-fit:contain;width:20px;height:20px}.mgrp{margin-bottom:14px}.mgrp>b{color:#454b5e;margin-bottom:7px;font-size:13px;display:block}.mchips{flex-wrap:wrap;gap:6px;display:flex}.uchip{color:#454b5e;background:#f7f8fb;border:1px solid #dfe3ee;border-radius:10px;align-items:center;gap:5px;padding:6px 10px;font-size:12px;display:inline-flex}.uchip img{object-fit:contain;width:16px;height:16px}.uchip.home{color:#a3610a;background:#fdf3e3;border-color:#e8b06a}.uchip.class{color:#2d4bd8;background:#eef2ff;border-color:#b9c4e8}.grp{background:#f7f8fb;border-left:4px solid #2d4bd8;border-radius:6px;flex-wrap:wrap;align-items:center;gap:8px;margin:18px 0 8px;padding:9px 12px;font-size:13px;font-weight:700;display:flex}.u{cursor:pointer;text-align:left;width:100%;font-size:inherit;background:#fff;border:1px solid #e3e6ef;border-radius:12px;margin-bottom:10px;padding:12px 14px;display:block}.u.done{background:#f7fdf9;border-color:#bfe6cd}.u.phu{border-left:3px solid #c2740a}.u.phu .ub{color:#c2740a;background:#fdf3e3}.uh{justify-content:space-between;align-items:center;gap:8px;display:flex}.ub{color:#0f8a6a;white-space:nowrap;background:#e3f7f1;border-radius:12px;padding:3px 10px;font-size:12px;font-weight:700}.up{color:#2d4bd8;white-space:nowrap;background:#e8f0ff;border-radius:12px;padding:3px 10px;font-size:12px}.ut{margin:9px 0 2px;font-size:16px;font-weight:700}.um{color:#888;font-size:12px;line-height:1.5}.ubar{background:#e5e8f0;border-radius:4px;height:8px;margin:9px 0 7px;overflow:hidden}.ubar i{background:#3a9d5d;height:100%;display:block}.uf{color:#666;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;font-size:12px;display:flex}.uf .ubtn{color:#0f8a6a;background:#fff;border:1px solid #7fd0bb;border-radius:8px;margin:0;padding:6px 14px;font-size:13px;font-weight:700}.offline{left:50%;top:calc(8px + env(safe-area-inset-top));z-index:100;color:#fff;background:#1f2937;border-radius:999px;padding:8px 14px;font-size:13px;font-weight:700;position:fixed;transform:translate(-50%);box-shadow:0 4px 14px #0003}.install{text-align:left;color:#2d4bd8;background:#eef1ff;border:1px solid #d6ddff;border-radius:12px;justify-content:space-between;align-items:center;gap:10px;margin:14px 0 0;padding:10px 12px;font-size:13px;display:flex}.install button{white-space:nowrap;margin:0}.busy{z-index:60;cursor:progress;background:#fff6;position:fixed;inset:0}.pwbox{background:#f3fbf7;border:1px solid #b7e3cd;border-radius:10px;margin:10px 0;padding:12px;font-size:15px;line-height:1.7}.pwbox code{color:#12915f;letter-spacing:1px;font-size:17px;font-weight:700}