@charset "UTF-8";
:root{color-scheme:dark;--bg:#050d16;--panel:#0b1927;--panel2:#102637;--text:#e9f2f6;--muted:#a4bdcd;--line:#254657;--control-line:#4b7f96;--accent:#83e7ff;--cyan:#83e7ff;--gold:#f1b784;--copper:#ecaa76;--sans:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--mono:ui-monospace,SFMono-Regular,Consolas,monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}button,input,textarea{font:inherit}button{cursor:pointer}button,a,input,summary,textarea{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,textarea:focus-visible{outline:2px solid var(--cyan);outline-offset:4px}button{border:1px solid var(--line);color:var(--text);background:var(--panel);border-radius:5px}button:hover{border-color:var(--accent)}[hidden]{display:none!important}.sr-only{position:absolute;clip:rect(0,0,0,0);width:1px;height:1px;overflow:hidden}.skip{position:fixed;left:16px;top:-80px;z-index:20;background:var(--accent);color:var(--bg);padding:12px}.skip:focus{top:10px}.topbar{height:74px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 32px;background:rgba(5,13,22,.97);position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:13px;font-weight:750;letter-spacing:.16em}.brand img{width:96px;height:auto;object-fit:contain;display:block;border:1px solid var(--line);border-radius:3px}.brand small{display:block;font-family:var(--mono);font-size:9px;color:var(--muted);letter-spacing:.14em;font-weight:400;line-height:1.3}.top-links{display:flex;align-items:center;gap:24px;font-size:13px;color:var(--muted)}.edition{font:10px var(--mono);letter-spacing:.12em;color:var(--accent)}.menu-toggle{display:none;padding:8px 12px}.shell{max-width:1600px;margin:auto;display:grid;grid-template-columns:248px minmax(0,1fr)}.sidebar{padding:32px 22px;border-right:1px solid var(--line);position:sticky;top:74px;height:calc(100dvh - 74px);overflow:auto;display:flex;flex-direction:column}.nav-label,.eyebrow{font:10px var(--mono);letter-spacing:.16em;color:var(--cyan);text-transform:uppercase}.nav-label{margin:26px 12px 9px;color:var(--muted)}.nav-label:first-child{margin-top:0}.sidebar a{display:flex;gap:12px;padding:10px 12px;margin:2px 0;border-radius:4px;font-size:13px;line-height:1.4;border-left:2px solid transparent}.sidebar a span{font:10px var(--mono);color:var(--muted);padding-top:3px}.sidebar a:hover{background:var(--panel)}.sidebar a[aria-current=page]{background:#102f40;color:var(--accent);border-left-color:var(--accent)}.sidebar-bottom{margin-top:auto;padding:36px 12px 8px;font-size:12px;color:var(--muted)}.sidebar-bottom strong{display:block;font-size:13px;color:var(--text);margin-bottom:6px}.sidebar-bottom p{margin:0}.main{min-width:0;padding:50px 5vw 30px;max-width:1300px;width:100%}.breadcrumb{font-size:12px;color:var(--muted);margin:0 0 22px}.breadcrumb a{text-decoration:underline;text-underline-offset:3px}.hero{display:block;padding:0 0 30px;border-bottom:1px solid var(--line)}h1,h2,h3{font-weight:650;line-height:1.18;letter-spacing:-.035em}h1{font-size:clamp(34px,4vw,54px);margin:15px 0 20px;max-width:760px}h1 em{font-style:normal;color:var(--accent)}.lead{color:var(--muted);max-width:660px;font-size:17px;line-height:1.7;margin:0}.meta-row{display:flex;gap:14px;flex-wrap:wrap;font:10px var(--mono);color:var(--muted);margin-top:22px}.meta-row span+span:before{content:"/";margin-right:14px;color:var(--line)}.section-top{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin:35px 0 15px}.section-top h2{font-size:23px;margin:0}.section-top p{font-size:12px;color:var(--muted);margin:0}.start-panel{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;padding:26px 28px;background:linear-gradient(110deg,#123448,#0b1927);border:1px solid #32647b;border-radius:7px;margin-top:28px}.start-panel h2{margin:6px 0 9px;font-size:24px}.start-panel p{font-size:14px;margin:0;max-width:550px;color:var(--muted)}.button{display:inline-flex;justify-content:center;align-items:center;gap:20px;padding:11px 17px;border:1px solid var(--line);border-radius:5px;font-size:12px;font-weight:600;white-space:nowrap;background:var(--panel);color:var(--text)}.button.primary{background:var(--accent);color:#06131e;border-color:var(--accent)}.button.primary:hover{background:#b8f2ff}.button.small{padding:8px 12px;font-size:11px}.search-row{display:flex;align-items:center;gap:12px;margin:24px 0 15px}.search{flex:1;position:relative}.search input{width:100%;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:5px;padding:12px 42px 12px 16px;font-size:13px}.search kbd{position:absolute;right:15px;top:12px;font:12px var(--mono);border:1px solid var(--line);padding:0 5px;border-radius:3px;color:var(--muted)}.filter-row{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:22px}.filter{padding:6px 11px;font-size:11px;background:transparent}.filter[aria-pressed=true]{color:var(--accent);border-color:#4387a0;background:#103044}.result-count{font-size:11px;color:var(--muted);min-width:68px;text-align:right}.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.guide-card{background:var(--panel);border:1px solid var(--line);border-radius:6px;overflow:hidden;position:relative}.guide-card>a{display:flex;flex-direction:column;height:100%;padding:24px}.guide-card:hover{border-color:#6dc8e3}.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.lesson-number{font:12px var(--mono);color:var(--accent);letter-spacing:.06em}.tag{font:9px var(--mono);color:var(--cyan);letter-spacing:.06em;padding:4px 6px;border:1px solid #32647b;border-radius:3px;display:inline-block}.tag.archive{color:var(--gold);border-color:#805c40}.guide-card h3{font-size:23px;margin:21px 0 10px}.guide-card p{font-size:13px;color:var(--muted);line-height:1.65;margin:0 0 18px}.card-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font:10px var(--mono);color:var(--muted)}.card-bottom b{font-size:20px;color:var(--accent)}.complete-label{display:none;color:var(--accent);font:10px var(--mono)}.is-complete .complete-label{display:inline}.no-results{border:1px dashed var(--line);padding:30px;text-align:center;color:var(--muted)}.note{display:flex;gap:15px;border:1px solid var(--line);border-left:3px solid var(--cyan);border-radius:4px;padding:20px 23px;background:var(--panel);font-size:13px;color:var(--muted);margin:30px 0}.note p{margin:0}.note strong{color:var(--text)}.note.warning{border-left-color:var(--gold)}.lower-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:30px}.compact-panel{padding:25px;border:1px solid var(--line);border-radius:6px}.compact-panel h2{font-size:21px;margin:10px 0}.compact-panel p{font-size:13px;color:var(--muted)}.inline-link{color:var(--accent);font-size:13px;text-decoration:underline;text-underline-offset:4px}.footer{margin-top:50px;padding:22px 0 5px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:10px}.footer p{margin:0;max-width:570px}.reading-layout{display:grid;grid-template-columns:minmax(0,740px) 180px;gap:40px}.reading{min-width:0}.lesson-header h1{font-size:clamp(32px,3.1vw,44px);margin:15px 0 18px}.lesson-header{padding-bottom:26px;border-bottom:1px solid var(--line)}.lesson-header .lead{font-size:16px}.lesson-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}.lesson-status{font-size:11px;color:var(--muted);margin:18px 0 0}.objectives{background:#0c2637;border:1px solid #2e566b;border-radius:5px;padding:24px 26px;margin:28px 0}.objectives h2{font-size:19px;margin:0 0 12px}.objectives ul{margin:0;padding-left:20px;color:#c4d7e2;font-size:14px}.objectives li+li{margin-top:5px}.lesson-section{margin:42px 0}.section-number{display:block;font:10px var(--mono);color:var(--cyan);letter-spacing:.1em;margin-bottom:8px}.lesson-section h2{font-size:26px;margin:0 0 18px}.lesson-section p{font-size:15px;line-height:1.85;color:#c4d7e2;margin:15px 0}.lesson-section ul,.lesson-section ol{padding-left:23px;color:#c4d7e2;font-size:15px;line-height:1.8}.lesson-section li{padding-left:5px;margin:10px 0}.steps{counter-reset:step;list-style:none!important;padding-left:0!important}.steps li{position:relative;padding-left:48px;min-height:36px;margin:20px 0}.steps li:before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;left:0;top:2px;background:#102c3e;border:1px solid #31596e;border-radius:4px;padding:4px 7px;font:11px var(--mono);color:var(--cyan)}.example{padding:22px 25px;border:1px solid #70543f;border-radius:5px;background:#1d2024;margin:24px 0}.example h3{font-size:16px;letter-spacing:-.015em;color:var(--accent);margin:0 0 10px}.example p{font-size:14px!important;margin:0!important;white-space:pre-line}.callout{padding:20px 23px;background:var(--panel);border-left:3px solid var(--cyan);margin:25px 0}.callout.warning{border-color:var(--gold)}.callout h3{font-size:16px;letter-spacing:0;margin:0 0 8px}.callout p{font-size:14px;margin:0}.table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--line);border-radius:5px}table{border-collapse:collapse;width:100%;font-size:13px;text-align:left}th,td{padding:13px 15px;vertical-align:top;border-bottom:1px solid var(--line)}th{background:var(--panel2);font-weight:600;color:var(--cyan)}td{color:#c4d7e2}tr:last-child td{border-bottom:0}.toc{position:sticky;top:108px;align-self:start;max-height:calc(100dvh - 140px);overflow:auto;font-size:11px}.toc summary{font:10px var(--mono);letter-spacing:.1em;color:var(--muted);list-style:none;cursor:pointer;margin-bottom:17px}.toc a{display:block;border-left:1px solid var(--line);padding:8px 0 8px 14px;color:var(--muted);line-height:1.5}.toc a:hover,.toc a[aria-current=location]{border-left-color:var(--accent);color:var(--accent)}.toc .progress-label{margin:22px 0 8px;color:var(--muted);font:9px var(--mono)}progress{appearance:none;width:100%;height:3px;border:0;background:var(--line)}progress::-webkit-progress-bar{background:var(--line)}progress::-webkit-progress-value{background:var(--accent)}progress::-moz-progress-bar{background:var(--accent)}.checklist{padding:25px;border:1px solid #31677c;background:#0d2533;border-radius:6px;margin:35px 0}.checklist h2{font-size:22px;margin:0 0 8px}.checklist>p{font-size:12px;color:var(--muted);margin:0 0 18px}.checklist label{display:flex;align-items:flex-start;gap:12px;font-size:14px;line-height:1.65;margin:13px 0;cursor:pointer}.checklist input{accent-color:var(--accent);width:17px;height:17px;flex:none;margin-top:4px}.checklist label:has(input:checked){color:var(--accent)}.checklist .button{margin-top:15px}.check-status{font-size:12px;color:var(--accent);margin-left:12px}.sources{border-top:1px solid var(--line);padding-top:24px;margin-top:34px}.sources h2{font-size:20px}.sources ul{padding-left:18px;font-size:12px}.sources li{margin:10px 0}.sources a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}.sources p{color:var(--muted);font-size:12px}.next-lesson{display:flex;align-items:center;justify-content:space-between;gap:25px;border:1px solid var(--line);border-radius:6px;padding:24px;margin-top:32px;background:var(--panel)}.next-lesson small{display:block;font:10px var(--mono);color:var(--muted);margin-bottom:8px}.next-lesson strong{font-size:18px;line-height:1.4}.next-lesson>span{color:var(--accent);font-size:24px}.copy-fallback{margin:20px 0}.copy-fallback textarea{width:100%;min-height:200px;background:var(--panel);color:var(--text);border:1px solid var(--line);padding:14px;font-size:12px}.status-toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--accent);color:#06131e;border:1px solid #b8f2ff;border-radius:5px;max-width:calc(100vw - 30px);padding:12px 20px;font-size:13px;z-index:30}.calculator{margin:25px 0;border:1px solid var(--line);border-radius:6px;padding:25px}.calculator h2{font-size:22px;margin:0 0 15px}.calculator form{display:flex;gap:15px;align-items:end;flex-wrap:wrap}.calculator label{display:flex;flex-direction:column;gap:6px;font-size:12px;max-width:150px}.calculator input{width:100%;padding:10px;color:var(--text);background:var(--panel);border:1px solid var(--line);border-radius:4px}.calc-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:20px}.calc-results div{border-top:1px solid var(--line);padding-top:10px}.calc-results span{display:block;font-size:11px;color:var(--muted)}.calc-results strong{font:13px var(--mono);overflow-wrap:anywhere}.error{color:#ffb1a6;font-size:13px}.text-page{max-width:850px}.text-page h2{font-size:25px;margin-top:35px}.text-page p{color:#c4d7e2;font-size:15px}.glossary-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 30px}.glossary-grid div{padding:20px 0;border-bottom:1px solid var(--line)}.glossary-grid dt{color:var(--cyan);font-size:16px;font-weight:600}.glossary-grid dd{margin:8px 0 0;font-size:14px;color:var(--muted)}
@media(min-width:1600px){.main{padding-left:70px;padding-right:70px}}
@media(max-width:1200px){.shell{grid-template-columns:220px minmax(0,1fr)}.sidebar{padding:28px 14px}.main{padding:35px 4vw}.reading-layout{grid-template-columns:minmax(0,1fr)}.toc{position:static;grid-row:1;max-height:none;border:1px solid var(--line);padding:15px 18px;border-radius:4px}.toc summary{pointer-events:auto;cursor:pointer;margin:0}.toc summary:after{content:" +";float:right}.toc[open] summary{margin-bottom:12px}.toc[open] summary:after{content:" −"}.toc .toc-links{columns:2}.toc a{break-inside:avoid}.toc .progress-label,.toc progress{display:none}.hero{grid-template-columns:1fr}.top-links{gap:18px}.lesson-header h1{font-size:39px}}
@media(max-width:780px){.topbar{height:66px;padding:0 20px}.brand img{width:65px;height:auto}.brand{font-size:11px;gap:9px}.top-links .edition,.top-links>a{display:none}.menu-toggle{display:block}.shell{display:block}.sidebar{display:none}.sidebar.open{display:flex;position:fixed;z-index:9;top:66px;left:0;width:min(320px,90vw);height:calc(100dvh - 66px);background:var(--bg);box-shadow:20px 0 60px #0008;border-right:1px solid var(--line);padding:25px}.main{padding:31px 22px 25px}.hero{padding-bottom:25px}h1{font-size:41px}.lead{font-size:15px}.meta-row{font-size:9px;gap:9px}.meta-row span+span:before{margin-right:9px}.start-panel{grid-template-columns:1fr;padding:22px;gap:18px}.start-panel .button{justify-self:start}.section-top h2{font-size:22px}.section-top p{display:none}.guide-grid{grid-template-columns:1fr 1fr;gap:11px}.guide-card>a{padding:18px}.guide-card h3{font-size:21px}.guide-card p{font-size:12px}.card-top{align-items:flex-start;gap:8px}.tag{font-size:8px}.lower-grid{grid-template-columns:1fr}.footer{display:block}.footer p+p{margin-top:14px}.lesson-header h1{font-size:36px}.lesson-section h2{font-size:25px}.lesson-section p,.lesson-section li{font-size:15px}.toc .toc-links{columns:1}.reading-layout{gap:25px}.lesson-section{margin:34px 0}.checklist{padding:21px}.glossary-grid{grid-template-columns:1fr}.calc-results{grid-template-columns:1fr}.calc-results strong{font-size:16px}.note{padding:19px}.lesson-actions .button{padding:9px 12px;font-size:11px}}
@media(max-width:500px){.guide-grid{grid-template-columns:1fr}.guide-card>a{padding:22px}.guide-card h3{font-size:23px;margin-top:16px}.guide-card p{font-size:13px}.guide-card .card-bottom{padding-top:13px}.card-top .tag{font-size:9px}.meta-row{line-height:1.8}.start-panel h2{font-size:23px}.main{padding-left:18px;padding-right:18px}.search-row{gap:8px}.search input{padding-left:12px}.search kbd{display:none}.lesson-header h1{font-size:34px}.next-lesson{padding:20px}.next-lesson strong{font-size:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{html{scroll-padding-top:0}body{background:white;color:#111;font:11pt/1.55 Georgia,serif}.topbar,.sidebar,.toc,.lesson-actions,.next-lesson,.footer,.status-toast,.copy-fallback,.checklist .button,.check-status,.calculator{display:none!important}.shell,.reading-layout{display:block}.main,.reading,.text-page{max-width:none;padding:0}.breadcrumb{font-size:9pt}.lesson-header h1{font-size:26pt}.lesson-section h2{font-size:18pt}.lesson-section p,.lesson-section li,.lead,.sources p,.sources a,.checklist label{color:#111!important;font-size:11pt}.objectives,.checklist,.example,.callout{background:white;border:1px solid #888;color:#111;break-inside:avoid;padding:14px}.objectives li,.example h3,.section-number,.tag,.eyebrow{color:#222}.lesson-section{margin:25px 0}a{color:#111}.sources a:after{content:" (" attr(href) ")";font-size:8pt;overflow-wrap:anywhere}.lesson-header{border-color:#888}h2,h3{break-after:avoid}.table-wrap{overflow:visible}th,td{color:#111;border-color:#888}th{background:#eee}.checklist input{appearance:none;width:12px;height:12px;border:1px solid #333}progress{display:none}}
.path-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.path-card{padding:20px;border:1px solid var(--line);border-radius:5px;background:#0b1d2c;display:flex;flex-direction:column}.path-card:hover{border-color:var(--accent)}.path-card h3{font-size:19px;margin:14px 0 10px;line-height:1.3}.path-card p{font-size:12px;line-height:1.7;color:var(--muted);margin:0 0 18px}.path-card .inline-link{font-size:11px;margin-top:auto}.path-card .eyebrow{font-size:9px}@media(max-width:780px){.path-grid{grid-template-columns:1fr}.path-card{padding:19px}.path-card h3{margin:10px 0 7px}.path-card p{margin-bottom:10px}}

@media print{.checklist input:checked:after{content:"✓";display:block;font:10px sans-serif;line-height:10px;color:#111}}

/* World-serpent identity: clear reading surfaces, cyan light, copper detail. */
body{background-color:var(--bg);background-image:radial-gradient(ellipse at 84% 0,rgba(18,74,104,.22),transparent 42rem)}
::selection{background:#18556c;color:#f2fcff}
.topbar{box-shadow:0 1px 0 rgba(131,231,255,.07),0 8px 24px #02070c66}
.brand{font-size:13px;letter-spacing:.12em;line-height:1.5}
.brand small{font-size:8px;letter-spacing:.09em;color:var(--copper)}
.edition{color:var(--copper)}
.shell{background:linear-gradient(90deg,#07121d 0,#07121d 248px,transparent 248px)}
.sidebar{scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.sidebar a[aria-current=page]{border-left-color:var(--copper);box-shadow:inset 0 0 18px #50b6d407}
.sidebar a:hover{color:var(--cyan)}
.nav-label{font-size:9px;letter-spacing:.13em}
.main{background:url('circuit-lines.svg') no-repeat right 12px/530px 330px;padding-top:34px}
.alliance-artwork{margin:0 0 28px;border:1px solid #32647b;background:#030b12;box-shadow:0 0 36px #2cbce50b,0 14px 40px #0004;position:relative;border-radius:5px}
.alliance-artwork img{display:block;width:100%;height:auto;aspect-ratio:1944/809;object-fit:contain;border-radius:4px}
.alliance-artwork:after{content:"";position:absolute;height:2px;bottom:-1px;left:12%;right:12%;background:linear-gradient(90deg,transparent,var(--cyan),var(--copper),transparent);pointer-events:none}
.hero-copy{padding:0 2px}
.hero-copy .eyebrow{color:var(--copper);margin-top:0}
.hero h1{font-size:clamp(32px,3.5vw,48px);margin:12px 0 16px;max-width:none}
.hero .lead{max-width:780px;font-size:16px}
.hero .meta-row{margin-top:18px}
.start-panel{background:linear-gradient(115deg,#123448,#0b1927 80%);box-shadow:inset 3px 0 0 var(--copper)}
.button{transition:border-color .16s,background-color .16s}
.button.primary{box-shadow:0 0 20px #58ccec16}
.guide-card,.path-card,.compact-panel{background:linear-gradient(140deg,#0e2233,var(--panel) 70%)}
.guide-card,.path-card{transition:border-color .16s,box-shadow .16s}
.guide-card:hover,.path-card:hover{box-shadow:0 0 22px #32c4e809}
.guide-card .lesson-number,.path-card .eyebrow{color:var(--copper)}
.card-bottom b{font-weight:400}
.section-top h2{padding-left:14px;border-left:2px solid var(--copper)}
.lesson-header{position:relative;padding-top:8px;border-top:1px solid #376079}
.lesson-header:before{content:"";position:absolute;left:0;top:-1px;width:76px;height:2px;background:linear-gradient(90deg,var(--cyan),var(--copper))}
.lesson-header>.tag{margin-top:15px}
.lesson-section{scroll-margin-top:94px}
.section-number{color:var(--copper)}
.objectives{box-shadow:inset 3px 0 0 #5abdd7}
.example{background:linear-gradient(110deg,#242324,#131d28);border-color:#70543f}
.example h3{color:var(--gold)}
.checklist{box-shadow:inset 0 2px 0 #5aacc6}
.toc a[aria-current=location]{border-left-color:var(--copper)}
th{background:#102637}tbody tr:nth-child(even){background:#0b1927}tbody tr:hover{background:#0e2534}
.table-wrap:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.footer{border-image:linear-gradient(90deg,#3a6c82,#79543d,transparent) 1}
.footer p:first-child{color:#b6cdd9}
.text-page>.alliance-artwork{margin-bottom:34px}
@media(max-width:1200px){.shell{background:linear-gradient(90deg,#07121d 0,#07121d 220px,transparent 220px)}.top-links .edition{display:none}.main{padding-top:28px}}
@media(max-width:780px){.shell{background:transparent}.main{padding-top:22px;background-size:370px auto}.topbar{padding:0 16px}.brand{font-size:11px;letter-spacing:.08em}.brand small{font-size:7px}.top-links{gap:0}.menu-toggle{font-size:11px;padding:9px 10px}.alliance-artwork{margin-bottom:24px}.hero h1{font-size:clamp(30px,6.3vw,42px)}.hero .lead{font-size:15px}.hero .meta-row{font-size:9px}.start-panel{margin-top:23px}.section-top h2{padding-left:11px}.section-top{margin-top:30px}.lesson-header:before{width:56px}.sidebar.open{background:#07121d}.footer{margin-top:38px}}
@media(max-width:380px){.brand{font-size:10px;gap:7px}.brand small{font-size:6px}.brand img{width:54px}.topbar{padding:0 12px}.menu-toggle{padding:8px;font-size:10px}.card-top{flex-wrap:wrap}.meta-row span+span:before{display:none}}
@media(prefers-reduced-motion:reduce){.button,.guide-card,.path-card{transition:none}}
@media print{body,.shell,.main{background:white!important;background-image:none!important}.alliance-artwork{display:none}.lesson-header,.objectives,.checklist{box-shadow:none}.lesson-header:before{display:none}.section-top h2{border-color:#888}.section-number,.example h3{color:#222}.example,.guide-card,.path-card,.compact-panel{background:white}.footer{border-image:none}tbody tr:nth-child(even),tbody tr:hover{background:white}}

.search input,.calculator input,.copy-fallback textarea{border-color:var(--control-line)}

/* Linked reference sections share the approved manual palette. */
.reference-nav{margin:2px 0 12px 17px;padding-left:10px;border-left:1px solid var(--line)}
.reference-nav a{font-size:11px;padding:7px 10px}
.reference-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:22px 0}
.reference-links a{display:block;border:1px solid var(--line);border-radius:5px;padding:15px;background:var(--panel);text-decoration:none}
.reference-links a:hover{border-color:var(--cyan)}
.reference-links strong{display:block;font-size:14px;line-height:1.5;color:var(--cyan)}
.reference-links a>span{display:block;font-size:12px;line-height:1.65;color:var(--muted);margin-top:5px}
.reference-links strong span{float:right;margin-left:7px}
@media(max-width:600px){.reference-links{grid-template-columns:1fr}.reference-nav{grid-column:1/-1}.table-wrap table{min-width:620px}}
@media print{.reference-links{display:block}.reference-links a{background:white;border-color:#888;margin:8px 0;break-inside:avoid}.reference-links strong,.reference-links a>span{color:#111}.reference-links a:after{content:" (" attr(href) ")";font-size:8pt}.table-wrap table{min-width:0}}