:root{--ink:#153d38;--muted:#526c65;--teal:#08786b;--dark:#063c37;--cream:#f6f7ef;--line:#d6e2d8;--mint:#e8f1e5;--gold:#f1d78b;--white:#fff;--radius:20px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:22px}
body{margin:0;background:var(--cream);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif;overflow-wrap:anywhere}
button,input{font:inherit}
button,a,input{touch-action:manipulation}
a{color:#076c60;text-underline-offset:4px}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,pre:focus-visible{outline:3px solid #ce9630!important;outline-offset:4px;box-shadow:none!important}
button:disabled,input:disabled{cursor:wait;opacity:.6}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{font-weight:760;letter-spacing:-.035em;line-height:1.16}
h1{font-size:clamp(36px,4.7vw,62px);margin-bottom:24px}
h1 em{font-style:normal;color:#c8e7b8}
h2{font-size:clamp(25px,3vw,36px);margin-bottom:12px}
h3{font-size:22px;margin-bottom:14px}
code{font-family:"Cascadia Code",Consolas,monospace;color:inherit;background:#e5ede2;padding:2px 5px;border-radius:4px;font-size:.88em}
.wrap{width:min(1200px,calc(100% - 64px));margin-inline:auto}
.skip-link{position:fixed;top:10px;left:12px;background:#fff;color:#063c37;padding:12px;z-index:100;transform:translateY(-180%)}
.skip-link:focus{transform:none}
.hero{color:#f5f7ea;background-color:var(--dark);background-image:linear-gradient(#ffffff06 1px,transparent 1px),linear-gradient(90deg,#ffffff06 1px,transparent 1px);background-size:30px 30px;padding:24px 0 46px}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none;font-size:20px;font-weight:750;line-height:1.2;min-height:44px}
.brand small{display:block;font-weight:650;font-size:10px;letter-spacing:.15em;margin-top:6px;color:#c1d9c6}
.brand-mark{font-size:40px;color:#b6e8c6;line-height:1}
.edition{font-size:12px;color:#c1d9c6;border:1px solid #688679;border-radius:50px;padding:6px 12px}
.hero-grid{display:grid;grid-template-columns:1.35fr .8fr;align-items:center;gap:70px;margin-top:58px}
.eyebrow{font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#3c7965;margin-bottom:12px}
.hero .eyebrow{color:#cfddab}
.hero-description{font-size:17px;line-height:1.7;max-width:650px;color:#d9e6d8;margin-bottom:28px}
.actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.btn{border-radius:9px;padding:11px 17px;font-weight:700;font-size:14px;min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;white-space:normal;border:1px solid transparent;transition:background .18s,transform .18s}
.btn.primary{background:#e8eeb8;color:#154c39;border-color:#e8eeb8}
.btn.primary:hover{background:#d4e48e;color:#103b2d}
.btn.ghost{color:#f4f5df;border-color:#76947c}
.btn.ghost:hover{background:#ffffff10}
.btn.secondary{color:var(--dark);background:white;border-color:#b8cabc}
.btn.secondary:hover{background:#e5efe0}
.hero-stack{background:#e1ecd60b;border:1px solid #729580;border-radius:22px;padding:25px;transform:rotate(-2deg);box-shadow:12px 12px 0 #041e1c33}
.hero-stack>div{display:grid;grid-template-columns:32px 1fr;align-items:center;gap:0 13px;border-bottom:1px solid #6888787d;padding:13px 0}
.hero-stack>div>span{grid-row:span 2;font:12px Consolas,monospace;color:#e7daa3;border:1px solid #7d9d82;border-radius:7px;padding:7px;text-align:center}
.hero-stack strong{font-size:18px}
.hero-stack small{color:#c7dccc;font-size:13px}
.hero-stack p{font-size:13px;margin:18px 0 0;color:#c7dccc}
.hero-stack code{background:#ffffff12;color:#e8efcf}
.boundary{display:flex;align-items:flex-start;gap:14px;background:#eaf1de;border:1px solid #cbd7b5;border-radius:12px;padding:18px 22px;margin:26px 0 40px;font-size:14px;line-height:1.6}
.boundary>span{flex:none;display:grid;place-items:center;width:23px;height:23px;border:1px solid #64806e;border-radius:50%;font-family:Georgia,serif;font-weight:bold}
.boundary p{margin:0}
.section-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:24px}
.section-heading p:last-child{margin-bottom:0;color:var(--muted);font-size:15px}
.section-heading .btn{flex-shrink:0}
.preset-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-bottom:22px}
.preset-card{position:relative;display:flex;align-items:center;gap:14px;border:1px solid var(--line);background:white;padding:20px;border-radius:14px;cursor:pointer;min-width:0;transition:border-color .2s,box-shadow .2s}
.preset-card:has(input:checked){border-color:var(--teal);box-shadow:inset 0 0 0 1px var(--teal);background:#f0f7e9}
.preset-card:has(input:focus-visible){outline:3px solid #ce9630;outline-offset:3px}
.preset-card input{width:18px;height:18px;flex:none;accent-color:var(--teal)}
.preset-card strong{display:block;font-size:17px;line-height:1.3}
.preset-card small{display:block;color:var(--muted);font-size:12px;line-height:1.5;margin-top:5px}
.preset-card>b{margin-left:auto;font-size:22px;color:#658779}
.preset-symbol{display:grid;place-items:center;flex:none;width:45px;height:45px;border-radius:11px;background:#e5e9f6;color:#43537a;font-size:15px;font-style:italic;font-weight:800}
.node-symbol{font-style:normal;background:#deebd2;color:#4c6b36}
.builder-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px;align-items:stretch}
.panel{border:1px solid var(--line);border-radius:var(--radius);background:white;padding:26px;min-width:0}
.panel-heading{display:flex;align-items:center;gap:10px;margin-bottom:24px;flex-wrap:wrap}
.panel-heading h3{font-size:17px;margin:0;letter-spacing:-.02em}
.panel-index{display:grid;place-items:center;flex:none;font:12px Consolas,monospace;width:26px;height:26px;border:1px solid #a8c1ae;border-radius:7px;background:#edf4e7}
.small-badge{font-size:10px;line-height:1.3;background:#f0f3e8;color:#4d6955;border-radius:4px;padding:5px 6px;margin-left:auto}
.field{margin-bottom:24px}
.field label{display:block;font-size:13px;font-weight:740;margin-bottom:8px}
.form-control{min-height:48px;border-radius:9px;border:1px solid #b5c9bc;font-size:16px;color:var(--ink);background:#fcfdf8;padding:10px 12px}
.form-control:focus{border-color:var(--teal);box-shadow:0 0 0 3px #08786b22}
.form-hint{font-size:12px;line-height:1.6;color:var(--muted);margin:7px 0 0}
.field-error{color:#9c3027;font-size:12px;margin:6px 0 0}
.form-control.is-invalid{border-color:#b34838;background-image:none;padding-right:12px}
.config-status{font-size:12px;line-height:1.55;color:#35604c;background:#edf4e8;border-radius:8px;padding:11px 13px}
.config-status.error{background:#fff0eb;color:#8d3029}
.topology{transition:opacity .15s}
.topology.invalid{opacity:.4}
.topology-node{display:flex;align-items:center;gap:12px;background:#f1f5eb;border:1px solid #bdd1bd;border-radius:12px;padding:14px;min-width:0;transition:box-shadow .15s,border-color .15s}
.topology-node>div{min-width:0}
.topology-node small{display:block;font-size:9px;font-weight:700;letter-spacing:.08em;color:#587760}
.topology-node strong{display:block;line-height:1.35;font-size:16px;margin:3px 0}
.topology-node code{background:transparent;padding:0;font-size:12px}
.node-icon{font:24px Consolas,monospace;flex:none;color:#38876b}
.browser-node{width:fit-content;min-width:255px;max-width:100%;margin:auto;background:#fffdf5;border-color:#d1d1ae}
.connection{text-align:center;font-size:10px;color:#577965;padding:5px 0}
.connection>span{font-size:22px;line-height:1;display:block}
.connection p{margin:2px 0 0}
.network-box{border:1px dashed #8fba9a;border-radius:14px;padding:15px;background:#f7faf1;min-width:0}
.network-label{display:flex;align-items:center;gap:7px;font-size:11px;font-weight:700;margin-bottom:13px}
.network-label small{font-weight:400;margin-left:auto;font-size:9px}
.service-pair{display:grid;grid-template-columns:1fr 64px 1fr;align-items:center}
.service-pair .topology-node{padding:13px 10px;gap:7px;min-height:106px;background:#fff}
.service-pair .node-icon{font-size:18px}
.service-pair .topology-node strong{font-size:14px}
.service-connection{text-align:center;min-width:0;color:#4a8266}
.service-connection>span{display:block;font-size:24px;line-height:1}
.service-connection small{font:9px Consolas,monospace;white-space:normal}
.health-note{font-size:10px;line-height:1.5;color:#4b7356;display:flex;gap:6px;margin:12px 0 0}
.health-note>span:first-child{font-weight:bold}
.volume-node{background:#eef1df;border-color:#ced3af}
.volume-node strong{font:13px Consolas,monospace;overflow-wrap:anywhere}
.volume-node div>span{font-size:10px;color:#637356;display:block;margin-top:4px}
.diagram-footnote{font-size:12px;line-height:1.6;border-top:1px solid var(--line);padding-top:15px;margin-top:19px}
.diagram-footnote strong{font-size:12px}
.diagram-footnote p{color:var(--muted);margin:3px 0 0}
.active-target{border-color:#08786b!important;box-shadow:0 0 0 3px #08786b28}
.source-section,.commands-section,.lessons-section{margin-top:58px}
.source-section .section-heading{align-items:flex-end}
.source-section .actions{justify-content:flex-end;flex-shrink:0;max-width:280px}
.source-section .actions .btn{width:100%;font-size:12px}
.source-panel{background:#0d3430;border:1px solid #1c5145;border-radius:14px;overflow:hidden;color:#e7efdc}
.source-tabs{display:flex;align-items:center;gap:4px;padding:10px;border-bottom:1px solid #38604f;flex-wrap:wrap}
.source-tabs [role=tab]{min-height:44px;padding:9px 14px;color:#c1d4c5;background:transparent;border:1px solid transparent;border-radius:8px;font-size:13px;font-weight:650}
.source-tabs [role=tab][aria-selected=true]{background:#d9e7c4;color:#153f33}
.source-tabs .copy-button{margin-left:auto}
.copy-button{border-color:#638475;color:#e9f1de;min-height:44px;padding:8px 12px;font-size:12px;background:#214d40}
.copy-button:hover{background:#3c6753;color:white;border-color:#92ab9a}
pre{margin:0}
.source-panel pre{padding:25px;overflow:auto;max-height:480px;min-height:260px;white-space:pre;font:13px/1.8 Consolas,"Cascadia Code",monospace;tab-size:2}
.source-panel code{color:inherit;background:none;padding:0;font-size:inherit}
.shell-choice{padding:15px 20px 0;display:flex;align-items:center;flex-wrap:wrap;gap:12px}
.shell-choice[hidden]{display:none}
.shell-choice label{font-size:12px;color:#d7e7cf}
.shell-choice select{font-size:16px;min-height:44px;max-width:100%;padding:8px 12px;border:1px solid #789682;border-radius:7px;background:#e7efdb;color:#163f32}
.filename-hint{font-size:12px;color:#506848;margin:14px 0 0}
.source-notes{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin:16px 0 0;font-size:12px;color:var(--muted)}
.source-notes p{margin:0}
.source-notes strong{color:var(--ink)}
.command-layout{display:grid;grid-template-columns:260px 1fr;gap:20px;align-items:start}
.command-menu{display:grid;gap:6px}
.command-menu button,.lesson-menu button{background:white;border:1px solid var(--line);border-radius:9px;padding:12px 14px;min-height:46px;text-align:left;color:var(--ink);font-size:12px;line-height:1.4;font-weight:650;display:flex;gap:10px;align-items:center}
.command-menu button:hover,.lesson-menu button:hover{border-color:#639d7a;background:#edf5e6}
.command-menu button[aria-pressed=true],.lesson-menu button[aria-pressed=true]{background:#0d574b;color:#f6f6e4;border-color:#0d574b}
.command-menu button>span,.lesson-menu button>span{font:10px Consolas,monospace;opacity:.8;flex:none}
.command-detail{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px;min-width:0;position:sticky;top:20px;min-height:340px}
.step-tag{display:block;color:#4e7d64;font-size:10px;font-weight:750;letter-spacing:.08em;margin-bottom:18px}
.command-detail h3{font-size:25px}
.command-detail>p,#command-description{color:var(--muted);font-size:15px}
.command-code-bar{background:#0d3430;border-radius:9px;padding:14px;display:flex;align-items:center;gap:14px;margin:25px 0 20px;min-width:0}
.command-code-bar>code{background:none;color:#e6ecd9;padding:0;display:block;white-space:pre-wrap;overflow-wrap:anywhere;font:13px/1.6 Consolas,monospace;flex:1;min-width:0}
.command-code-bar .copy-button{flex:none}
.command-detail .command-context{font-size:12px;line-height:1.7;margin-bottom:0}
.destructive{border:1px solid #dcc6b4;background:#f9f2e6;border-radius:12px;margin-top:20px;font-size:13px;color:#725036}
.destructive summary{cursor:pointer;min-height:50px;padding:14px 18px;font-weight:700}
.destructive>div{padding:0 18px 12px;max-width:900px}
.destructive p{margin:8px 0}
.destructive pre{padding:10px 0;white-space:pre-wrap;overflow-wrap:anywhere}
.destructive code{background:#f0e7d6}
.lesson-layout{display:grid;grid-template-columns:300px 1fr;gap:20px}
.lesson-menu{display:grid;gap:8px;align-content:start}
.lesson-menu button{padding:16px;font-size:13px;min-height:57px}
.lesson-detail{border:1px solid var(--line);border-radius:16px;background:#fff;padding:30px;min-width:0}
.lesson-detail h3{font-size:25px}
.lesson-detail>p,.lesson-detail li{font-size:14px;line-height:1.7;color:var(--muted)}
.lesson-detail ol{padding-left:20px;margin:22px 0}
.lesson-detail li{padding-left:4px;margin-bottom:10px}
.lesson-result{border-left:3px solid #80aa70;background:#f0f4e8;padding:14px 18px;font-size:13px;line-height:1.7}
.lesson-result p{margin:5px 0 0;color:#476345}
.persistence-section{display:grid;grid-template-columns:1fr 1fr;gap:55px;margin-top:58px;padding:35px;border:1px solid #c5d5bd;background:#ecf1df;border-radius:18px}
.persistence-section h2{font-size:29px}
.persistence-section p{color:#4f684c;font-size:13px}
.persistence-section>div>p:last-child{font-size:11px;margin-bottom:0}
.persistence-section ol{padding:0;margin:0;list-style:none;display:grid;gap:20px}
.persistence-section li{display:flex;gap:14px;align-items:flex-start;font-size:13px}
.persistence-section li>span{display:grid;place-items:center;flex:none;width:28px;height:28px;border-radius:50%;background:#0d574b;color:#f1f4df;font:12px Consolas,monospace}
.persistence-section li p{font-size:12px;margin:5px 0 0}
.persistence-section code{background:#dde8cf;font-size:11px;display:inline-block;margin-top:6px;overflow-wrap:anywhere}
.download-section{display:grid;grid-template-columns:1fr 260px;align-items:center;gap:40px;background:#063c37;color:#eef3df;border-radius:20px;margin:35px 0 25px;padding:35px}
.download-section .eyebrow{color:#b4d3a4}
.download-section h2{font-size:28px}
.download-section p:last-child{font-size:13px;color:#c6dbc9;margin-bottom:0}
.download-section .btn{width:100%}
.article-link{display:block;text-align:center;font-size:12px;color:#d7e3b7;padding:14px;min-height:44px}
.workshop-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:11px;color:#647661;padding:6px 0 25px}
.workshop-footer a{min-height:44px;display:flex;align-items:center;flex-shrink:0}
.toast-message{position:fixed;bottom:20px;left:50%;transform:translate(-50%,25px);opacity:0;pointer-events:none;background:#103f36;color:#f0f5e2;padding:12px 20px;border:1px solid #8daa8e;border-radius:12px;box-shadow:0 5px 35px #002a2630;z-index:50;font-size:13px;max-width:calc(100% - 30px);transition:opacity .2s,transform .2s}
.toast-message.visible{opacity:1;transform:translate(-50%,0)}
.noscript{position:fixed;bottom:0;left:0;width:100%;padding:15px;background:#fff0db;color:#633e14;font-size:13px;border-top:1px solid #bda175}
.embedded .hero{padding:13px 0}
.embedded .hero-grid,.embedded .edition{display:none}
.embedded .brand{font-size:17px}
.embedded .brand small{font-size:8px}
.embedded .brand-mark{font-size:30px}
.embedded .boundary{margin:18px 0 24px;padding:12px 16px;font-size:12px}
.embedded #builder>.section-heading h2{font-size:26px}
.embedded #builder>.section-heading .eyebrow{margin-bottom:6px}
.embedded .builder-grid .panel{padding:22px}
@media(min-width:901px){.embedded .field{margin-bottom:17px}.embedded .panel-heading{margin-bottom:17px}}
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