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@media(max-width:760px){.product-line summary{grid-template-columns:28px minmax(0,1fr) 20px;gap:13px}.product-line summary strong{font-size:14px}.product-line summary small{font-size:11px}.product-line-body{display:block;padding:0 0 24px 41px}.product-line-body>div{margin-bottom:20px}.product-course{display:block}.product-number{font-size:23px}}
.lesson-figure{margin:22px 0 35px;padding:22px;background:#edf2ea;border:1px solid #dae3d6;border-radius:4px}.lesson-figure figcaption{font-size:12px;font-weight:500;margin-bottom:20px}.lesson-figure>p{font-size:11px;color:var(--muted);line-height:1.8;margin:17px 0 0}.lesson-figure>svg{display:block;max-width:420px;width:100%;margin:auto}.flow-blocks{display:flex;align-items:center;gap:9px}.flow-blocks div{flex:1;padding:14px 5px;text-align:center;font-size:11px;min-width:0;border:1px solid #c6d6bf;background:#fafcf7;border-radius:3px}.flow-blocks span{color:#85a679;font-size:18px}.truth-table{width:100%;border-collapse:collapse;text-align:center;font-size:12px}.truth-table th,.truth-table td{padding:9px;border-bottom:1px solid #d4dfce}.truth-table th{font-weight:500}
@media(max-width:760px){.lesson-figure{padding:18px}.flow-blocks{flex-direction:column;gap:5px}.flow-blocks div{width:100%;padding:10px;font-size:12px}.flow-blocks span{transform:rotate(90deg);line-height:1}.truth-table th,.truth-table td{padding:8px 4px;font-size:11px}}
.lesson-section p+p{margin-top:17px}.learning-goals h2{font-size:15px;font-weight:500;margin:0 0 12px}.learning-goals ul{padding-left:20px;margin:0;font-size:13px;line-height:1.9}.learning-goals li+li{margin-top:7px}.learning-goals>p{font-size:11px;color:var(--muted);margin-top:12px}.lesson-table-wrap{max-width:100%;overflow-x:auto;margin:25px 0 8px;border-top:1px solid var(--line)}.lesson-table{border-collapse:collapse;min-width:590px;width:100%;font-size:12px;line-height:1.85;text-align:left}.lesson-table caption{text-align:left;padding:14px 0;font-size:12px;font-weight:500;color:var(--ink)}.lesson-table caption span{display:block;font-weight:400;font-size:10px;color:var(--muted);margin-top:4px}.lesson-table th{font-weight:500;background:#edf2ea}.lesson-table th,.lesson-table td{padding:13px 14px;vertical-align:top;border-bottom:1px solid var(--line)}.lesson-table td:first-child{color:var(--accent);font-weight:500;width:24%}.lesson-table td{color:#425653}.chapter-review details{border-top:1px solid var(--line);padding:16px 0}.chapter-review details:last-child{border-bottom:1px solid var(--line)}.chapter-review summary{cursor:pointer;font-size:14px;font-weight:500;line-height:1.8}.chapter-review details p{font-size:13px;line-height:1.95;margin:14px 0 0;padding:15px 18px;background:#edf2ea}.chapter-review>p{font-size:12px}
@media(max-width:760px){.lesson-table{font-size:12px;min-width:565px}.lesson-table th,.lesson-table td{padding:11px 12px}.lesson-table-wrap{margin-top:20px}.lesson-section p+p{margin-top:17px}.learning-goals ul{font-size:12px}.chapter-review summary{font-size:13px}.chapter-review details p{font-size:13px;padding:14px}}
.lesson-gallery{margin:30px 0 36px}.lesson-gallery>h2{font-size:18px;font-weight:500;margin:0 0 9px}.gallery-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:23px;margin-top:24px}.lesson-image{margin:26px 0 18px;min-width:0}.lesson-image .image-link{display:block;background:#fff;border:1px solid var(--line);padding:16px;cursor:zoom-in;border-radius:4px}.lesson-image img{display:block;width:100%;height:auto;max-height:650px;object-fit:contain;margin:auto}.lesson-image figcaption{padding-top:12px}.lesson-image h3{font-size:14px;font-weight:500;margin:0 0 4px}.lesson-image .image-model{display:block;color:var(--accent);font-size:11px;overflow-wrap:anywhere}.lesson-image .image-kind{display:block;font-size:10px;color:var(--muted);margin:4px 0}.lesson-image figcaption p{font-size:12px;line-height:1.85;margin:8px 0}.lesson-image figcaption small{display:block;color:var(--muted);font-size:10px}.lesson-image figcaption small a{color:var(--accent)}.gallery-item{margin:0}.gallery-item .image-link{height:195px;padding:18px;display:flex;align-items:center;justify-content:center}.gallery-item img{max-height:155px;width:auto;max-width:100%}.gallery-item:nth-child(2) img{max-height:125px}.gallery-item figcaption p{font-size:11px}.lesson-gallery>p{font-size:11px;line-height:1.8}
@media(max-width:760px){.gallery-grid{gap:12px}.gallery-item .image-link{height:125px;padding:10px}.gallery-item img{max-height:95px}.gallery-item:nth-child(2) img{max-height:85px}.gallery-item h3{font-size:13px}.gallery-item .image-model{font-size:10px}.gallery-item figcaption p{font-size:11px;line-height:1.8}.gallery-item .image-kind{font-size:9px}.lesson-image .image-link{padding:10px}.lesson-gallery>h2{font-size:17px}.lesson-image figcaption p{font-size:12px}.gallery-item figcaption p{font-size:11px}}
.action-cue{padding:24px 27px;margin:28px 0 34px;background:#eef2ea;border-left:3px solid #9ab295}.action-cue.ready{background:#e4f0e8;border-color:var(--accent)}.action-cue h2{font-size:19px;font-weight:500;margin:0 0 10px}.action-cue>p:not(.eyebrow){font-size:13px;line-height:1.85;margin:0 0 10px}.action-cue>small{display:block;font-size:11px;color:var(--muted);line-height:1.8}.action-cue .primary-link{margin-top:18px;font-size:12px;padding:9px 14px}.action-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:28px 0 35px}.action-tabs a{padding:18px 15px;border-right:1px solid var(--line);min-width:0}.action-tabs a:last-child{border-right:0}.action-tabs a.selected{background:var(--accent-soft)}.action-tabs span{display:block;font:23px var(--serif);color:#8eaa93}.action-tabs strong{display:block;font-size:13px;font-weight:500;margin:7px 0}.action-tabs small{font-size:10px;color:var(--muted)}.action-guide{max-width:860px;margin:auto}.action-guide>h2{font-size:25px;font-weight:500;line-height:1.5}.action-guide>p{font-size:14px;line-height:1.9}.action-guide h3{font-size:19px;font-weight:500;margin:28px 0 15px}.action-guide h4{font-size:15px;font-weight:500;margin:0 0 9px}.action-steps ol{padding:0;list-style:none;counter-reset:steps}.action-steps li{counter-increment:steps;padding:20px 0 20px 43px;border-top:1px solid var(--line);position:relative}.action-steps li::before{content:counter(steps,decimal-leading-zero);position:absolute;left:0;top:18px;font:24px var(--serif);color:#9fb39f}.action-steps p{font-size:14px;line-height:1.95;margin:0}.action-questions ul,.action-outputs ul{padding-left:21px;font-size:14px;line-height:1.9}.action-questions li,.action-outputs li{margin:9px 0}.action-template{margin:24px 0}.action-template>div{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:9px}.action-template h4{margin:0}.action-template button{font-size:11px;white-space:nowrap}.action-template textarea{width:100%;font-size:13px;line-height:1.9;background:#fff;color:#3c5650;min-height:120px}.action-guide .intro-box{font-size:12px}.action-guide .term-links{margin-bottom:0}.action-guide .note-box h2{font-size:19px}
@media(max-width:760px){.action-cue{padding:21px 19px}.action-cue h2{font-size:18px}.action-tabs{display:block}.action-tabs a{display:grid;grid-template-columns:30px minmax(0,1fr) 75px;gap:12px;align-items:center;border:0;border-bottom:1px solid var(--line);padding:14px 9px}.action-tabs a:last-child{border-bottom:0}.action-tabs strong{font-size:12px;margin:0}.action-tabs small{text-align:right;font-size:10px}.action-guide>h2{font-size:22px}.action-steps li{padding-left:35px}.action-steps p{font-size:14px}.action-guide h3{font-size:18px}.action-guide h4{font-size:14px}.action-template textarea{font-size:16px}.action-questions ul,.action-outputs ul{font-size:14px}.action-template button{padding:8px 10px;min-height:40px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before{animation:none!important;transition:none!important}}

/* The route stays readable and interactive without a GPU or network dependency. */
.route-home{display:flex;align-items:center;gap:24px;padding:22px 0;border-block:1px solid var(--line);margin:0 0 28px}.route-home-scale{font:30px var(--serif);color:var(--accent);white-space:nowrap}.route-home-scale i{font:18px var(--sans);font-style:normal}.route-home strong{font-size:16px;font-weight:500}.route-home small{display:block;color:var(--muted);font-size:12px;margin-top:5px}.route-home .arrow{margin-left:auto}.route-overview{background:#132f2c;color:#eaf3e9;padding:30px 30px 19px;position:relative;overflow:hidden}.route-top{display:flex;align-items:center;justify-content:space-between;gap:25px}.route-top .eyebrow{color:#9cbdb0;margin-bottom:10px}.route-top h2{font:30px/1.3 var(--serif);margin:0 0 10px}.route-top p:not(.eyebrow){font-size:12px;color:#bbd0c6;max-width:490px;margin:0}.route-scale{font:46px var(--serif);white-space:nowrap;color:#c5dcc7}.route-scale span{font:24px var(--sans);color:#85bda4;padding:0 10px}.route-map{position:relative;margin-top:30px}.route-map>svg{position:absolute;inset:0;width:100%;height:320px;pointer-events:none}.route-track{fill:none;stroke:#6b9584;stroke-width:1.5;vector-effect:non-scaling-stroke}.practice-track{stroke-dasharray:6 7}.route-nodes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-template-rows:160px 160px;position:relative}.route-node{grid-column:var(--route-col);grid-row:var(--route-row);display:flex;flex-direction:column;align-items:center;text-align:center;padding:18px 8px 10px;border-radius:4px;min-width:0;transition:background .18s,transform .18s}.route-node:hover{background:#ffffff0c;transform:translateY(-3px)}.route-pin{display:grid;place-items:center;flex:none;position:relative;width:32px;height:32px;border:1px solid #6b9584;border-radius:50%;font-size:11px;background:#132f2c;color:#aac9b9;transition:background .18s,box-shadow .18s}.route-node.selected .route-pin{border-color:#c6e0ba;background:#c6e0ba;color:#132f2c;box-shadow:0 0 0 5px #c6e0ba18}.route-node.done:not(.selected) .route-pin{color:#c6e0ba;border-color:#a2c1a4}.route-range{font:20px var(--serif);margin-top:11px;line-height:1.3;color:#a0bda5}.route-node strong{font-size:13px;font-weight:500;margin-top:4px}.route-node small{font-size:10px;color:#a6c2b3;margin-top:4px}.route-node.selected strong,.route-node.selected .route-range{color:#e6f0dd}.route-node:focus-visible{outline-color:#c6e0ba;outline-offset:-2px}.route-legend{display:flex;gap:20px;flex-wrap:wrap;border-top:1px solid #36514a;padding-top:14px;font-size:10px;color:#abc3b6}.route-legend i{display:inline-block;width:15px;border-top:1px solid #91b7a3;vertical-align:middle;margin-right:7px}.route-legend i.dashed{border-top-style:dashed}.route-planner{display:grid;grid-template-columns:auto 1fr;gap:10px 35px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line)}.route-planner 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var(--serif);margin-right:20px;color:var(--accent);white-space:nowrap}.route-detail-head p:not(.eyebrow){font-size:13px;line-height:1.9;max-width:620px;margin:12px 0 0}.route-effort{flex:none;text-align:right;color:var(--accent)}.route-effort strong{display:block;font:32px var(--serif)}.route-effort strong small{font:11px var(--sans);color:var(--muted)}.route-effort>span{display:block;font-size:11px;color:var(--muted);margin-top:5px}.route-status{padding:16px 20px;background:#edf2ea;display:flex;gap:20px;align-items:baseline;font-size:12px}.route-status strong{font-weight:500;flex:none}.route-status span{color:#56695f;font-size:11px}.route-detail h3{font-size:18px;font-weight:500;margin:30px 0 17px}.route-skill-labels,.route-skill{display:grid;grid-template-columns:1fr 1.2fr 1.65fr;gap:24px}.route-skill-labels{font-size:10px;color:var(--muted);padding:0 0 12px}.route-skill{border-top:1px solid var(--line);padding:19px 0}.route-skill:last-child{border-bottom:1px solid var(--line)}.route-skill h4{font-size:13px;line-height:1.8;font-weight:500;margin:0;color:var(--accent)}.route-skill p{font-size:12px;line-height:1.95;margin:0}.route-skill p:nth-child(2){color:var(--muted)}.route-mobile-label{display:none}.route-method{display:grid;grid-template-columns:1fr 1fr;gap:45px}.route-method p,.route-method li{font-size:13px;line-height:2}.route-method ol{padding-left:20px}.route-method li+li{margin-top:8px}.route-method blockquote{margin:20px 0;padding:15px 0 15px 18px;border-left:2px solid #9eb99d;font-size:13px;line-height:1.95;color:#456455}.route-method blockquote span{display:block;font-size:10px;color:var(--muted);margin-bottom:6px}.text-link,.route-review-links a{color:var(--accent);font-size:12px}.route-boundary{font-size:11px;color:var(--muted);line-height:1.9;margin:24px 0;padding:16px 0;border-block:1px solid var(--line)}.route-courses,.route-references{margin:24px 0}.route-courses>summary,.route-references>summary,.route-all-courses>summary{cursor:pointer;font-size:13px;padding:14px 0}.route-courses .text-link{display:inline-block;margin-top:14px}.route-review-links{display:flex;gap:24px;flex-wrap:wrap}.route-note-hint{font-size:11px;line-height:1.9;margin-top:-20px}.route-all-courses{border-top:1px solid var(--line);margin-top:22px}.route-detail-head h2{scroll-margin-top:24px}.route-detail{animation:arrive .22s ease-out}
@media(max-width:1020px){.route-scale{display:none}.route-overview{padding:25px 20px 18px}.route-skill-labels,.route-skill{gap:18px}.route-method{gap:28px}.route-node strong{font-size:12px}.route-node small{font-size:9px}.route-status{display:block}.route-status span{display:block;margin-top:6px}}
@media(max-width:760px){.route-home{gap:16px}.route-home-scale{font-size:23px}.route-home strong{font-size:14px}.route-home small{font-size:11px}.route-overview{padding:24px 20px 19px}.route-top h2{font-size:25px}.route-top p:not(.eyebrow){font-size:12px;line-height:1.9}.route-map{margin-top:21px}.route-map>svg{display:none}.route-nodes{display:flex;flex-direction:column}.route-node{position:relative;display:grid;grid-template-columns:32px 60px minmax(0,1fr);gap:0 13px;align-items:center;text-align:left;padding:12px 0;min-height:75px}.route-node::before{content:'';position:absolute;left:16px;top:0;bottom:0;border-left:1px solid #6b9584}.route-node:nth-child(n+5)::before{border-left-style:dashed}.route-node:first-child::before{top:50%}.route-node:last-child::before{bottom:50%}.route-pin{grid-column:1;grid-row:1/3;z-index:1}.route-range{grid-column:2;grid-row:1/3;font-size:19px;margin:0}.route-node strong{grid-column:3;grid-row:1;font-size:13px;align-self:end;margin:0}.route-node small{grid-column:3;grid-row:2;font-size:10px;align-self:start;margin-top:3px}.route-node:hover{transform:none}.route-node.selected{background:#ffffff08}.route-legend{gap:10px 20px;font-size:9px}.route-planner{grid-template-columns:1fr;gap:15px;padding:23px 0}.route-planner label,.route-planner select{font-size:13px}.route-planner select{min-height:44px}.route-planner output strong{font-size:16px}.route-planner output span{font-size:11px}.route-recommend{font-size:12px;gap:5px;padding-bottom:24px}.route-recommend>span{flex-basis:100%}.route-recommend>a{padding:6px 0}.route-detail-head{display:block;padding-top:24px}.route-detail-head h2{font-size:21px;scroll-margin-top:8px}.route-detail-head h2>span{font-size:25px;margin-right:12px}.route-detail-head p:not(.eyebrow){font-size:13px}.route-effort{display:flex;align-items:baseline;gap:18px;text-align:left;margin-top:17px}.route-effort strong{font-size:27px}.route-detail h3{font-size:17px;margin-top:26px}.route-skill-labels{display:none}.route-skill{display:block;padding:19px 0}.route-skill h4{font-size:14px;margin-bottom:6px}.route-skill p{font-size:13px}.route-skill p+p{margin-top:9px}.route-mobile-label{display:inline;color:var(--accent)}.route-method{display:block}.route-method p,.route-method li{font-size:14px}.route-method blockquote{font-size:14px}.route-status{padding:15px;font-size:12px}.route-detail .note-box textarea{font-size:16px}.route-courses>summary,.route-references>summary,.route-all-courses>summary{font-size:12px;min-height:44px}.route-home .arrow{flex:none}.route-boundary{font-size:11px}}
.route-back{display:none}
@media(max-width:760px){.route-back{display:inline-block;font-size:12px;min-height:44px;margin:0 0 19px;background:transparent;border-color:#c9d6c9}}