.lm{--lm-ink:#173e35;--lm-green:#196b5c;color:var(--lm-ink);background:#f7f7ef;min-height:100vh;font-family:inherit;line-height:1.55}.lm *{box-sizing:border-box}.lm a{color:inherit}.lm-header{max-width:1200px;margin:auto;padding:22px 28px;display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid #cddbd1}.lm-brand{text-decoration:none;font-size:23px;font-weight:800;white-space:nowrap}.lm-brand b{display:inline-grid;place-content:center;width:34px;height:34px;border-radius:10px;background:var(--lm-green);color:#fff}.lm-header nav{display:flex;gap:22px;flex-wrap:wrap}.lm-header nav a{text-decoration:none;font-weight:700;padding:6px 0;border-bottom:3px solid transparent}.lm-header nav a[aria-current]{border-color:var(--lm-green)}.lm-main{max-width:1160px;margin:auto;padding:30px 28px 60px}.lm-title{margin:16px 0 24px}.lm-title h1{font-size:clamp(27px,3.5vw,40px);line-height:1.15;margin:8px 0 12px;letter-spacing:-.025em}.lm-title p{margin:0;max-width:760px;font-size:17px}.lm-label{display:block;font-size:12px;letter-spacing:.08em;font-weight:800;text-transform:uppercase;margin:0 0 5px}.lm-grades{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 24px}.lm-grades a{border:1px solid #a4c2b2;border-radius:11px;background:#fffef9;min-width:110px;padding:11px 20px;font-weight:800;text-decoration:none;text-align:center}.lm-grades a[aria-current]{background:var(--lm-green);color:white;border-color:var(--lm-green)}.lm-resume{display:flex;align-items:center;justify-content:space-between;gap:24px;background:#e4eee3;padding:22px 26px;border:1px solid #bad0b8;border-radius:16px;margin-bottom:28px}.lm-resume h2{margin:0;font-size:23px;line-height:1.3}.lm-resume p{margin:8px 0 0}.lm-button{display:inline-flex;justify-content:center;align-items:center;text-decoration:none;border:1px solid #a1bfb0;background:#fffef9;min-height:46px;padding:10px 17px;border-radius:9px;font-weight:750;font-size:15px;text-align:center;gap:8px}.lm-button.lm-primary{color:#fff;background:var(--lm-green);border-color:var(--lm-green)}.lm-resume>.lm-button{flex-shrink:0}.lm-strands{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.lm-strand{display:flex;gap:19px;align-items:flex-start;padding:24px;border:1px solid #c6d8ce;background:#fffef9;border-radius:16px;text-decoration:none;transition:border-color .15s,box-shadow .15s}.lm-strand:hover{border-color:var(--lm-path);box-shadow:0 4px 14px #173e3510}.lm-symbol{display:grid;place-items:center;flex:0 0 57px;min-height:57px;border-radius:12px;background:color-mix(in srgb,var(--lm-path) 12%,white);color:var(--lm-path);font-size:25px;font-weight:800}.lm-strand h2{font-size:23px;line-height:1.2;margin:0 0 10px}.lm-strand p{margin:0 0 10px}.lm-strand .lm-count{font-size:14px;color:#4c675b}.lm-open{font-weight:800;color:var(--lm-path)}.lm-lessons{display:grid;gap:16px}.lm-lesson{display:grid;grid-template-columns:43px minmax(0,1fr);gap:18px;padding:24px;background:#fffef9;border:1px solid #c6d8ce;border-radius:14px}.lm-lesson h2{font-size:23px;line-height:1.3;margin:0 0 10px}.lm-lesson p{margin-top:0}.lm-step{display:grid;place-content:center;background:#e9efe7;border:1px solid #b6cbbc;width:40px;height:40px;border-radius:50%;font-weight:800}.lm-finished{border-color:#5a9570}.lm-finished .lm-step{background:#277848;color:#fff;border-color:#277848}.lm-evidence{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin:14px 0}.lm-status{font-size:14px;font-weight:800;color:#526d60}.lm-status.lm-done{background:#d9edcf;color:#245b30;padding:4px 9px;border-radius:5px}.lm-evidence small{font-size:14px}.lm-actions{display:flex;gap:10px;flex-wrap:wrap}.lm-game-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.lm-game{padding:24px;background:#fffef9;border:1px solid #c6d8ce;border-radius:14px}.lm-game h2{font-size:23px;line-height:1.25;margin:10px 0}.lm-game .lm-button{margin:5px 5px 0 0}.lm-teacher{margin-top:28px;padding:18px 22px;border:1px solid #c6d8ce;border-radius:12px;font-size:15px}.lm-teacher summary{cursor:pointer;font-weight:750}.lm-footer{max-width:1104px;padding:20px 0;margin:auto;border-top:1px solid #cddbd1;color:#4f695c;font-size:14px}.lm :focus-visible{outline:3px solid #335ad7;outline-offset:4px}.lm p,.lm h2{overflow-wrap:anywhere}@media(max-width:640px){.lm-header{padding:18px 18px;display:block}.lm-header nav{gap:18px;margin-top:15px;font-size:14px}.lm-main{padding:20px 16px 40px}.lm-title{margin-top:4px}.lm-title p{font-size:16px}.lm-grades{gap:8px}.lm-grades a{flex:1;min-width:0;padding:10px 9px;font-size:14px}.lm-resume{display:block;padding:20px}.lm-resume>.lm-button{margin-top:16px;width:100%}.lm-strands,.lm-game-grid{grid-template-columns:1fr}.lm-strand{padding:20px;gap:16px}.lm-strand h2{font-size:21px}.lm-symbol{flex-basis:47px;min-height:47px;font-size:21px}.lm-lesson{padding:20px 16px;gap:12px;grid-template-columns:33px minmax(0,1fr)}.lm-step{width:32px;height:32px}.lm-lesson h2{font-size:21px}.lm-lesson .lm-actions{margin-left:-45px;padding-top:5px}.lm-lesson .lm-button{flex:1}.lm-footer{margin:0 16px;padding:20px 0}.lm-game{padding:20px}}@media(prefers-reduced-motion:reduce){.lm *{transition:none!important}}

.lm-symbol{white-space:nowrap}.lm-symbol:has(+div h2){font-variant-numeric:tabular-nums}@media(max-width:640px){.lm-symbol{font-size:18px}}

.lm-label{font-size:14px}

/* A connected skill tree, with topic branches and preparation links. */
.lm-tree-hub{position:relative;margin-top:32px}.lm-tree-root{position:relative;width:max-content;max-width:100%;margin:0 auto 32px;padding:12px 24px;background:#173e35;color:white;border-radius:30px;font-weight:800}.lm-tree-root:after{content:"";position:absolute;top:100%;left:50%;height:32px;border-left:3px solid #91b6a3}.lm-branches{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 22px;padding:20px 0}.lm-branches:before{content:"";position:absolute;left:16.66%;right:16.66%;top:0;border-top:3px solid #91b6a3}.lm-branch{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;text-decoration:none;background:#fffef9;border:2px solid #c6d8ce;border-top:5px solid var(--lm-path);border-radius:18px;padding:22px;box-shadow:0 4px 0 #173e3509}.lm-branch:before{content:"";position:absolute;bottom:100%;height:25px;left:50%;border-left:3px solid #91b6a3}.lm-branch h2{font-size:22px;line-height:1.2;margin:2px 0}.lm-branch p{margin:0;font-size:16px}.lm-branch .lm-count{font-size:14px;margin-top:auto;padding-top:6px}.lm-branch .lm-symbol{width:64px;min-height:54px;flex:none}.lm-branch:hover{border-color:var(--lm-path)}.lm-tree-key{display:flex;gap:10px 24px;flex-wrap:wrap;font-size:14px;margin:20px 0 30px}.lm-tree-key span:last-child{color:#526d60}.lm-skill-tree{position:relative;isolation:isolate;padding:4px 0 20px}.lm-connections{position:absolute;inset:0;pointer-events:none;overflow:visible;z-index:-1}.lm-connections path{fill:none;stroke:var(--lm-path);stroke-width:3;opacity:.42}.lm-skill-level{display:flex;flex-wrap:wrap;justify-content:center;align-items:flex-start;gap:20px;margin-bottom:58px}.lm-skill{flex:0 1 calc(33.333% - 15px);min-width:0;border:2px solid #a4bcae;border-radius:18px;background:#fffef9;box-shadow:0 4px 0 #173e350c;overflow:hidden}.lm-skill summary{position:relative;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;padding:20px 16px;list-style:none}.lm-skill summary::-webkit-details-marker{display:none}.lm-node-dot{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;border:2px solid var(--lm-path);background:#fff;color:var(--lm-path);font-weight:800;font-size:27px}.lm-node-title{font-size:18px;line-height:1.3;font-weight:800}.lm-node-status{font-size:14px;color:#526d60}.lm-skill.lm-finished{border-color:#277848}.lm-finished .lm-node-dot{background:#277848;color:#fff}.lm-skill[open]{border-color:var(--lm-path)}.lm-skill[open] summary{background:#e9f1e9}.lm-node-body{padding:18px;border-top:1px solid #c6d8ce;font-size:16px}.lm-node-body p{margin:0 0 14px}.lm-node-body .lm-actions{display:grid;grid-template-columns:1fr}.lm-preparation{margin-bottom:18px;font-size:14px}.lm-preparation ul{margin:8px 0 0;padding-left:20px}.lm-preparation li{margin-bottom:8px}.lm-note{font-size:14px}.lm-node-body .lm-evidence{font-size:14px}.lm-skill summary:focus-visible{outline-offset:-5px}.lm-skill-level:last-child{margin-bottom:0}
@media(max-width:800px){.lm-branches{grid-template-columns:repeat(2,minmax(0,1fr))}.lm-branches:before{left:25%;right:25%}.lm-skill{flex-basis:calc(50% - 10px)}}
@media(max-width:520px){.lm-branches{grid-template-columns:1fr;margin-left:18px;padding-left:20px}.lm-branches:before{left:0;right:auto;top:0;bottom:0;border-top:0;border-left:3px solid #91b6a3}.lm-branch:before{left:-22px;top:50%;bottom:auto;width:20px;height:0;border-left:0;border-top:3px solid #91b6a3}.lm-tree-root{margin-left:0}.lm-tree-root:after{left:18px}.lm-skill-level{gap:22px;margin-bottom:44px}.lm-skill{flex-basis:100%;max-width:420px}.lm-node-title{font-size:19px}.lm-node-body .lm-actions{display:flex}.lm-node-body .lm-button{flex:1}.lm-tree-key{gap:10px 16px}}

/* Only semantic parent-child groups draw connectors: never adjacent grid cards. */
.lm-topic-map{margin:30px 0 40px}.lm-topic-map>h2,.lm-parallel>h2{font-size:25px;margin:0 0 10px}.lm-map-note{max-width:740px;margin:0 0 24px}.lm-topic-tree,.lm-topic-tree ul{display:flex;justify-content:center;align-items:flex-start;list-style:none;margin:0;padding:0;position:relative}.lm-topic-tree li{flex:1;min-width:0;position:relative;padding:32px 12px 0}.lm-topic-tree>li{padding-top:0}.lm-topic-tree ul{margin-top:30px}.lm-topic-tree ul:before{content:"";position:absolute;left:50%;top:-30px;height:30px;border-left:3px solid #91b6a3}.lm-topic-tree ul>li:before,.lm-topic-tree ul>li:after{content:"";position:absolute;top:0;width:50%;height:32px;border-top:3px solid #91b6a3}.lm-topic-tree ul>li:before{right:50%}.lm-topic-tree ul>li:after{left:50%;border-left:3px solid #91b6a3}.lm-topic-tree ul>li:first-child:before,.lm-topic-tree ul>li:last-child:after{border-top:0}.lm-topic-tree ul>li:only-child:before{display:none}.lm-topic-tree .lm-branch{max-width:350px;margin:auto;padding:18px 16px;gap:8px}.lm-topic-tree .lm-branch:before,.lm-parallel .lm-branch:before{display:none}.lm-topic-tree .lm-branch h2{font-size:21px}.lm-topic-tree .lm-branch .lm-symbol{width:48px;min-height:42px;font-size:22px}.lm-topic-tree .lm-branch p{font-size:16px}.lm-route-cue{font-size:14px;font-weight:750;color:#456251;border-bottom:1px solid #d4e0d8;padding-bottom:8px;width:100%}.lm-parallel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:22px}.lm-parallel .lm-branch{padding:22px}
@media(max-width:900px){.lm-topic-tree,.lm-topic-tree ul{display:block}.lm-topic-tree>li{padding:0}.lm-topic-tree ul{margin:0 0 0 12px;padding:22px 0 0 16px;border-left:3px solid #91b6a3}.lm-topic-tree ul:before{display:none}.lm-topic-tree ul>li{padding:0 0 22px}.lm-topic-tree ul>li:before,.lm-topic-tree ul>li:first-child:before,.lm-topic-tree ul>li:only-child:before{display:block;left:-16px;right:auto;top:30px;width:16px;height:0;border-top:3px solid #91b6a3}.lm-topic-tree ul>li:after{display:none}.lm-topic-tree .lm-branch{max-width:none;margin:0}.lm-topic-tree ul>li:last-child{padding-bottom:0}.lm-parallel-grid{grid-template-columns:1fr}.lm-route-cue{font-size:14px}}

/* Named continuations stay visible on the overview, including later secondary topics. */
.lm-jump{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:0 0 26px}.lm-jump>span{font-size:14px;font-weight:800;margin-right:4px}.lm-jump button{font:inherit;font-size:14px;cursor:pointer;padding:9px 12px;min-height:44px;border:1px solid #a4c2b2;border-radius:24px;background:#fffef9;color:var(--lm-ink)}.lm-jump button:hover{background:#e4eee3}.lm-branch{scroll-margin-top:24px}.lm-paths{max-width:350px;margin:0 auto;position:relative;padding-top:24px;text-align:left}.lm-paths:before{content:"";position:absolute;left:50%;top:0;height:24px;border-left:3px solid #91b6a3}.lm-paths-label{margin:0 0 14px;text-align:center;font-size:13px;font-weight:800;letter-spacing:.04em;color:#456251}.lm .lm-path-tree,.lm .lm-path-tree ul{display:block;list-style:none;margin:0;padding:0 0 0 16px;border-left:2px solid #91b6a3;position:relative}.lm .lm-path-tree ul{margin:18px 0 0 8px;padding-left:14px}.lm .lm-path-tree li{display:block;position:relative;padding:0;margin:0 0 18px;min-width:0}.lm .lm-path-tree li:last-child{margin-bottom:0}.lm .lm-path-tree li:before,.lm .lm-path-tree li:first-child:before,.lm .lm-path-tree li:only-child:before{content:"";display:block;position:absolute;top:25px;left:-16px;right:auto;width:16px;height:0;border:0;border-top:2px solid #91b6a3}.lm .lm-path-tree:before,.lm .lm-path-tree li:after,.lm .lm-path-tree ul:before{display:none}.lm .lm-path-tree ul li:before{left:-14px;width:14px}.lm-path-card{display:block;background:#fffef9;border:1px solid #c6d8ce;border-left:4px solid var(--lm-path);border-radius:12px;padding:14px 15px;text-decoration:none}.lm-path-card:hover{border-color:var(--lm-path);background:#f0f5ec}.lm-path-card h3{font-size:18px;line-height:1.3;margin:0 0 7px;overflow-wrap:anywhere}.lm-path-card p{font-size:14px;line-height:1.5;margin:0 0 10px}.lm-path-card>span{display:flex;justify-content:space-between;gap:8px;font-size:13px;color:#456251}.lm-path-card b{color:var(--lm-path);font-size:18px}.lm-path-parent{margin-top:18px!important}.lm-paths-short{max-width:720px}.lm-paths-short>.lm-path-tree{display:grid;grid-template-columns:1fr 1fr;gap:16px}.lm-paths-short>.lm-path-tree>li{margin:0}.lm-parallel-branch{min-width:0}.lm-parallel-branch .lm-paths{max-width:none;margin:0 12px}.lm-parallel-grid{align-items:start}
@media(max-width:900px){.lm-paths{max-width:none;margin-left:12px}.lm-paths-short>.lm-path-tree{display:block}.lm-paths-short>.lm-path-tree>li{margin-bottom:16px}.lm-paths{margin-bottom:24px}.lm .lm-path-tree ul{margin-left:0;padding-left:10px}.lm .lm-path-tree ul li:before{left:-10px;width:10px}.lm-jump button{flex-grow:1}.lm-path-card{padding:13px 12px}.lm-path-card h3{font-size:18px}}
/* Play page: sections of short cards, two across on phones. */
.lm-game-jump{display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 18px}
.lm-game-jump a{padding:8px 14px;border:1px solid #b8cdba;border-radius:999px;text-decoration:none;font-weight:700;font-size:14px;color:#1b5b4c;background:#fffef9}
.lm-game-section{margin:0 0 30px}.lm-game-section>h2{font-size:24px;margin:0 0 4px}.lm-game-section>p{margin:0 0 14px}
.lm-game-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))!important;gap:14px!important}
.lm-game{display:flex!important;gap:14px;align-items:flex-start;padding:18px!important}
.lm-game h3{font-size:19px;line-height:1.25;margin:4px 0 6px}
.lm-game p{margin:0 0 10px;font-size:15px;line-height:1.45}
.lm-game-mark{flex:0 0 auto;display:grid;place-items:center;min-width:48px;height:48px;padding:0 6px;border-radius:12px;background:#e7efe3;color:#196b5c;font-weight:800;font-size:17px}
@media(max-width:620px){
 .lm-game-grid{grid-template-columns:1fr 1fr!important;gap:10px!important}
 .lm-game{flex-direction:column;gap:8px;padding:12px!important}
 .lm-game .lm-label{display:none}
 .lm-game h3{font-size:16px}
 .lm-game p{font-size:13px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
 .lm-game-mark{min-width:40px;height:40px;font-size:15px}
 .lm-game .lm-button{min-height:40px;padding:8px 12px;font-size:14px}
}