:root{--green:#1d4d45;--green-2:#3f7a6c;--green-soft:#e7efed;--orange:#ee9b2f;--orange-ink:#9a5a17;--soft:#fdf3e4;--soft-line:#f3d9b1;--ink:#1f2a28;--muted:#56635f;--bg:#fbfaf7;--line:#e6e2d9;--danger:#a4372b;--shadow:0 1px 2px #1d4d450a, 0 8px 24px #1d4d450d;--tab-h:64px}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--ink);margin:0}body{letter-spacing:-.01em;word-break:keep-all;-webkit-tap-highlight-color:transparent;font-family:Pretendard,-apple-system,Apple SD Gothic Neo,Noto Sans KR,sans-serif;font-size:16px;line-height:1.65}main{max-width:480px;margin:0 auto;padding:24px 16px 64px}body:has(.tabbar) main{padding-bottom:calc(var(--tab-h) + 40px + env(safe-area-inset-bottom))}h1{color:var(--green);letter-spacing:-.02em;margin:8px 0 12px;font-size:26px;line-height:1.35}h2{color:var(--green);font-size:18px;line-height:1.4}h3{color:var(--green);margin:0 0 8px;font-size:16px}p{margin:0 0 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#1d4d452e}.btn:active{transform:scale(.98)}.btn:disabled{box-shadow:none;cursor:default;background:#b8c4c1}.btn-kakao{color:#000000d9;box-shadow:none;background:#fee500}.btn-sub{color:var(--green);border:1px solid var(--green);box-shadow:none;background:#fff}.btn-danger{background:var(--danger);box-shadow:none}.btn+.btn{margin-top:10px}.link{color:var(--green);cursor:pointer;background:0 0;border:0;padding:0;font-size:14px;text-decoration:underline}.more{color:var(--green);align-items:center;gap:2px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.back{color:var(--muted);border-radius:999px;align-items:center;gap:2px;margin-left:-4px;padding:4px 10px 4px 4px;font-size:14px;text-decoration:none;display:inline-flex}.back:hover{background:var(--green-soft)}main>a.link:first-child{color:var(--muted);font-size:14px;text-decoration:none}.tiles{grid-template-columns:1fr 1fr;gap:10px;margin:16px 0;display:grid}.tile{border:1px solid var(--line);color:var(--ink);box-shadow:var(--shadow);background:#fff;border-radius:18px;flex-direction:column;gap:10px;padding:16px;text-decoration:none;display:flex}.tile b{font-size:15px;display:block}.tile small{color:var(--muted);margin-top:2px;font-size:13px;line-height:1.45;display:block}.tile .ico{background:var(--green-soft);width:40px;height:40px;color:var(--green);border-radius:12px;place-items:center;display:inline-grid}.tile.orange .ico{background:var(--soft);color:var(--orange-ink)}.tile.rose .ico{color:#9a3b17;background:#fbeee6}.list{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:18px;margin:16px 0;overflow:hidden}.row{color:var(--ink);border-top:1px solid var(--line);text-align:left;background:0 0;align-items:center;gap:12px;width:100%;padding:14px 16px;font-size:16px;text-decoration:none;display:flex}.row:first-child{border-top:0}.row .ico{background:var(--green-soft);width:36px;height:36px;color:var(--green);border-radius:11px;flex:none;place-items:center;display:inline-grid}.row .txt{flex:1;min-width:0}.row .txt small{color:var(--muted);font-size:13px;display:block}.row>.icon:last-child{color:#a9b3b0}.row .num{background:var(--soft);width:28px;height:28px;color:var(--orange-ink);border-radius:50%;flex:none;place-items:center;font-size:14px;font-weight:700;display:inline-grid}.lesson-row{border-bottom:1px solid var(--line);color:var(--ink);padding:12px 0;text-decoration:none;display:block}.lesson-row:last-child{border-bottom:0}label{margin-bottom:6px;font-size:14px;font-weight:600;display:block}.input{width:100%;font:inherit;border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:12px;margin-bottom:12px;padding:13px 14px;font-size:16px;display:block}.input:focus{outline:2px solid var(--green);border-color:#0000}.search{position:relative}.search .icon{color:var(--muted);position:absolute;top:15px;left:14px}.search .input{padding-left:42px}.q{margin:20px 0 8px;font-weight:600}.opts{gap:8px;display:grid}.opt{text-align:left;border:1px solid var(--line);width:100%;color:var(--ink);cursor:pointer;background:#fff;border-radius:14px;padding:13px 14px;font-size:15px;transition:border-color .15s,background .15s;display:block}.opt[aria-pressed=true]{border-color:var(--green);background:var(--green-soft);box-shadow:inset 0 0 0 1px var(--green);font-weight:600}.opt:disabled{opacity:.55}.opts-row{grid-template-columns:repeat(3,1fr);gap:6px;display:grid}.opts-row .opt{text-align:center;padding:11px 4px;font-size:14px}.chips{flex-wrap:wrap;gap:6px;margin:6px 0 12px;display:flex}.chip{background:#f3efe6;border-radius:999px;padding:4px 12px;font-size:13px}.chip.strength{background:var(--green-soft);color:var(--green);font-weight:600}.tag{color:var(--green);background:var(--green-soft);border-radius:999px;align-items:center;gap:4px;padding:2px 10px;font-size:13px;font-weight:600;display:inline-flex}.tag.orange{color:var(--orange-ink);background:var(--soft)}.nav{gap:10px;margin-top:24px;display:flex}.nav .btn{flex:1;margin-top:0}.progress{background:var(--line);border-radius:999px;height:6px;margin:4px 0 12px;overflow:hidden}.progress span{background:var(--green);border-radius:999px;height:100%;transition:width .25s;display:block}.prose p{margin:0 0 6px}.prose .li{position:relative}.prose .mark{color:var(--orange);margin-left:-16px;position:absolute}.sec{margin:26px 0}.sec>h2{margin:0 0 12px;font-size:17px}.lesson-head{align-items:center;gap:12px;margin:14px 0 4px;display:flex}.lesson-head .step{margin:0}details{margin:8px 0}summary{cursor:pointer;color:var(--green);font-size:14px;font-weight:600}.lock-card{text-align:center}.lock-card .ico{background:var(--green-soft);width:48px;height:48px;color:var(--green);border-radius:50%;place-items:center;margin-bottom:8px;display:inline-grid}.months{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.month{text-align:center;border:1.5px solid var(--line);color:var(--ink);background:#fff;border-radius:16px;flex-direction:column;align-items:center;gap:6px;padding:12px 4px 10px;font-size:13px;font-weight:600;text-decoration:none;display:flex;position:relative}.month[aria-current=page]{border-color:var(--green);background:var(--green-soft)}.month .dot{margin:0;position:absolute;top:8px;right:8px}.dot{background:var(--orange);vertical-align:middle;border-radius:50%;width:8px;height:8px;margin-left:4px;display:inline-block}.theme-list{gap:10px;margin:0;padding:0;list-style:none;display:grid}.theme-list li{align-items:center;gap:12px;font-size:15px;display:flex}.theme-list small{color:var(--muted);font-size:12px;display:block}.empty{text-align:center;padding:8px 0 16px}.empty .illust{max-width:240px}.tabbar{z-index:10;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);background:#fffffff5;position:fixed;bottom:0;left:0;right:0}.tabbar nav{max-width:480px;height:var(--tab-h);grid-template-columns:repeat(5,1fr);margin:0 auto;display:grid}.tabbar a{color:#8a9692;flex-direction:column;justify-content:center;align-items:center;gap:3px;font-size:11px;font-weight:500;text-decoration:none;display:flex}.tabbar a[aria-current=page]{color:var(--green);font-weight:700}.tabbar a[aria-current=page] .icon{stroke-width:2.2px}.illust.small{max-width:220px}.saybox{border-radius:12px;align-items:flex-start;gap:8px;margin:10px 0 0;padding:12px 14px;display:flex}.saybox .icon{margin-top:3px}.saybox b{margin-right:4px}.saybox.ok{background:var(--green-soft);color:var(--green)}.saybox.no{color:#9a3b17;background:#fbeee6}button.row{border:0;border-top:1px solid var(--line);color:var(--ink)}button.row:first-child{border-top:0}