:root{--bg:#f4f9ee;--card:#fff;--ink:#23301c;--ink-soft:#5f6b57;--line:#d9e6cf;--green:#5cb85c;--green-deep:#3f9a3f;--green-soft:#e6f4e0;--yellow:#f7c948;--yellow-soft:#fff5cf;--orange:#f0803c;--orange-soft:#ffe9dc;--blue:#4a7fd6;--blue-soft:#e4edfb;--red:#e0524f;--red-soft:#fde3e2;--radius:18px;--shadow:0 2px 12px #32501e14}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg);color:var(--ink);word-break:keep-all;-webkit-text-size-adjust:100%;font-family:Pretendard,Apple SD Gothic Neo,Malgun Gothic,system-ui,sans-serif;font-size:19px;line-height:1.7}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer;color:inherit;background:0 0;border:none}textarea,input,select{font:inherit;color:inherit}.shell{max-width:900px;margin:0 auto;padding:16px 16px 90px}.topbar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px;display:flex}.topbar .brand{color:var(--green-deep);align-items:center;gap:6px;font-size:1.05rem;font-weight:800;display:flex}.topbar .brand small{color:var(--ink-soft);font-size:.8rem;font-weight:600}.topbar nav{flex-wrap:wrap;gap:4px;margin-left:auto;display:flex}.topbar nav a{color:var(--ink-soft);border-radius:999px;padding:6px 11px;font-size:.9rem;font-weight:600}.topbar nav a.active,.topbar nav a:hover{background:var(--green-soft);color:var(--green-deep)}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;padding:20px}.card.soft{background:var(--green-soft);box-shadow:none}.card.yellow{background:var(--yellow-soft);box-shadow:none}.card h1,.card h2{line-height:1.3}h1{font-size:1.55rem;font-weight:800}h2{margin-bottom:10px;font-size:1.2rem;font-weight:800}h3{margin-bottom:6px;font-size:1rem;font-weight:800}.muted{color:var(--ink-soft);font-size:.93rem}.tiny{color:var(--ink-soft);font-size:.82rem}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.spread{justify-content:space-between}.stack{flex-direction:column;gap:10px;display:flex}.btn{background:var(--green);color:#fff;border-radius:14px;justify-content:center;align-items:center;gap:6px;min-height:48px;padding:12px 20px;font-size:1.02rem;font-weight:800;transition:transform 60ms,background .15s;display:inline-flex}.btn:hover{background:var(--green-deep)}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.secondary{color:var(--green-deep);border:2px solid var(--green);background:#fff}.btn.secondary:hover{background:var(--green-soft)}.btn.ghost{color:var(--ink-soft);border:2px solid var(--line);background:0 0}.btn.ghost:hover{background:#fff}.btn.yellow{background:var(--yellow);color:var(--ink)}.btn.yellow:hover{background:#edb92f}.btn.small{border-radius:11px;min-height:38px;padding:8px 14px;font-size:.9rem}.btn.block{width:100%}.tag{background:var(--green-soft);color:var(--green-deep);border-radius:999px;padding:2px 10px;font-size:.8rem;font-weight:700;display:inline-block}.tag.sub-ko{color:#b95a1f;background:#ffe9dc}.tag.sub-ma{color:#2e5db3;background:#e4edfb}.tag.sub-so{color:#8a6200;background:#fff1c2}.tag.sub-sc{color:#1f7a63;background:#e3f3ef}.tag.sub-etc{color:#5b4a9e;background:#ece9f7}.part-block{margin-bottom:16px}.part-head{align-items:baseline;gap:10px;margin-bottom:8px;display:flex}.part-head h2{margin:0}.word-grid{grid-template-columns:repeat(5,1fr);gap:8px;display:grid}.word-cell{border:2px solid var(--line);text-align:center;background:#fff;border-radius:14px;flex-direction:column;justify-content:center;align-items:center;gap:2px;min-height:74px;padding:10px 6px;transition:transform 80ms;display:flex}.word-cell:hover{border-color:var(--green);transform:translateY(-2px)}.word-cell .num{color:var(--ink-soft);font-size:.72rem;font-weight:700}.word-cell .w{font-size:.98rem;font-weight:800;line-height:1.25}.word-cell.done{background:var(--green-soft);border-color:var(--green)}.word-cell.done .num:before{content:"✓ ";color:var(--green-deep)}.word-cell.today{border-color:var(--yellow);background:var(--yellow-soft);box-shadow:0 0 0 3px #f7c94859}@media (max-width:520px){.word-grid{grid-template-columns:repeat(4,1fr)}.word-cell .w{font-size:.9rem}}.progress-bar{background:#e5eddc;border-radius:999px;height:12px;overflow:hidden}.progress-bar>span{background:linear-gradient(90deg, var(--green), #8ed17a);border-radius:999px;height:100%;transition:width .4s;display:block}.hero{background:linear-gradient(135deg,#fff8dd,#eaf7e1);border-radius:22px;margin-bottom:18px;padding:22px 22px 20px;position:relative;overflow:hidden}.hero .label{color:var(--orange);letter-spacing:.02em;font-size:.9rem;font-weight:800}.hero .big{margin:4px 0 6px;font-size:2.4rem;font-weight:900;line-height:1.2}.hero .sub{color:var(--ink-soft);margin-bottom:14px}.steps{gap:6px;margin-bottom:16px;display:flex}.steps span{background:#dfe9d4;border-radius:999px;flex:1;height:8px}.steps span.on{background:var(--green)}.steps span.cur{background:var(--yellow)}.step-title{align-items:center;gap:10px;margin-bottom:12px;display:flex}.step-title .badge{background:var(--yellow);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;font-weight:900;display:inline-flex}.word-header{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:14px;display:flex}.word-header .word-big{background:var(--green-soft);color:var(--green-deep);border-radius:14px;padding:4px 18px;font-size:2rem;font-weight:900}.story{white-space:pre-line;font-size:1.08rem;line-height:1.9}.story mark,.hl{background:var(--yellow-soft);color:#a34a00;border-radius:4px;padding:0 3px;font-weight:800}.story-wrap{align-items:flex-start;gap:18px;display:flex}.story-img{border:2px solid var(--line);border-radius:14px;flex-shrink:0;width:240px;max-width:40%}@media (max-width:600px){.story-wrap{flex-direction:column;align-items:center}.story-img{width:100%;max-width:320px}}.hero-img{border:2px solid #fff;border-radius:12px;flex-shrink:0;width:120px}.story-title{color:var(--green-deep);text-align:center;margin-bottom:12px;font-size:1.15rem;font-weight:800}.def-box{border:2px solid var(--green);border-radius:16px;margin-bottom:12px;padding:16px}.def-box .def{font-size:1.15rem;font-weight:800;line-height:1.5}.def-box .ety{color:var(--ink-soft);margin-top:6px;font-size:.9rem}.kv{grid-template-columns:84px 1fr;align-items:start;gap:8px 12px;margin-top:12px;display:grid}.kv .k{background:var(--green-soft);text-align:center;color:var(--green-deep);border-radius:10px;padding:4px 8px;font-size:.9rem;font-weight:800}.kv .rel{flex-direction:column;gap:4px;display:flex}.kv .rel b{color:var(--green-deep);margin-right:6px}@media (max-width:420px){.kv{grid-template-columns:1fr}}.q-prompt{white-space:pre-line;margin-bottom:12px;font-weight:800;line-height:1.55}.opt{text-align:left;border:2px solid var(--line);background:#fff;border-radius:14px;align-items:flex-start;gap:10px;width:100%;margin-bottom:8px;padding:12px 14px;line-height:1.5;display:flex}.opt:hover{border-color:var(--green)}.opt .lab{color:var(--green-deep);flex-shrink:0;min-width:2em;font-weight:800}.opt.sel{border-color:var(--green);background:var(--green-soft)}.opt.right{border-color:var(--green-deep);background:var(--green-soft)}.opt.wrong{border-color:var(--red);background:var(--red-soft)}.opt.missed{border-style:dashed;border-color:var(--green-deep)}.sub-item{border-top:1px dashed var(--line);padding:10px 0}.sub-item:first-of-type{border-top:none}.sub-item .text{white-space:pre-line;margin-bottom:8px}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{border:2px solid var(--line);background:#fff;border-radius:999px;padding:8px 14px;font-size:.95rem;font-weight:700}.chip:hover{border-color:var(--green)}.chip.sel{background:var(--green-soft);border-color:var(--green);color:var(--green-deep)}.chip.right{background:var(--green-deep);border-color:var(--green-deep);color:#fff}.chip.wrong{background:var(--red-soft);border-color:var(--red);color:var(--red)}.ox-row{border-top:1px dashed var(--line);align-items:center;gap:8px;padding:10px 0;display:flex}.ox-row:first-of-type{border-top:none}.ox-row .text{flex:1}.ox-btn{border:2px solid var(--line);background:#fff;border-radius:12px;width:44px;height:44px;font-size:1.2rem;font-weight:900}.ox-btn.sel{border-color:var(--green);background:var(--green-soft)}.ox-btn.right{background:var(--green-deep);border-color:var(--green-deep);color:#fff}.ox-btn.wrong{background:var(--red-soft);border-color:var(--red);color:var(--red)}.feedback{border-radius:14px;margin-top:12px;padding:12px 14px;line-height:1.55}.feedback.ok{background:var(--green-soft);color:var(--green-deep)}.feedback.no{background:var(--yellow-soft);color:#7a5200}.feedback.info{background:var(--blue-soft);color:#2e5db3}.raw{white-space:pre-wrap;background:#f7faf4;border-radius:12px;padding:12px;font-size:.95rem;line-height:1.6}textarea.sentence{border:2px solid var(--line);resize:vertical;background:#fff;border-radius:14px;width:100%;min-height:110px;padding:12px 14px;font-size:1.05rem;line-height:1.6}textarea.sentence:focus{border-color:var(--green);outline:none}input.text{border:2px solid var(--line);background:#fff;border-radius:12px;width:100%;padding:10px 14px;font-size:1.05rem}input.text:focus{border-color:var(--green);outline:none}.flash{min-height:220px;box-shadow:var(--shadow);text-align:center;cursor:pointer;border:2px solid var(--line);-webkit-user-select:none;user-select:none;background:#fff;border-radius:22px;justify-content:center;align-items:center;padding:24px;display:flex}.flash.back{background:var(--green-soft);border-color:var(--green)}.flash .front-word{font-size:2.2rem;font-weight:900}.flash .back-def{font-size:1.15rem;font-weight:700;line-height:1.6}.record-list{flex-direction:column;gap:10px;display:flex}.record{border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px 14px}.record .head{align-items:baseline;gap:8px;margin-bottom:4px;display:flex}.record .head b{font-size:1.05rem}.record .sent{line-height:1.6}.stat-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.stat{text-align:center;border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px}.stat .n{color:var(--green-deep);font-size:1.6rem;font-weight:900}.stat .l{color:var(--ink-soft);font-size:.85rem}.footer{color:var(--ink-soft);text-align:center;margin-top:40px;font-size:.8rem;line-height:1.6}.celebrate{text-align:center;padding:24px 12px}.celebrate .emoji{font-size:3rem}.sr{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}table.list{border-collapse:collapse;width:100%;font-size:.95rem}table.list th,table.list td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:8px 6px}table.list th{background:var(--green-soft);font-size:.85rem}@media print{.no-print,.topbar,.footer{display:none!important}body{background:#fff;font-size:13px}.shell{max-width:none;padding:0}.card{box-shadow:none;break-inside:avoid;border:1px solid #ccc}}