/* Learn-Guidewire — docs-style layout: navy sidebar, electric-blue accent, Inter + JetBrains Mono. */
:root{
  --bg:#f6f8fb;--paper:#ffffff;--sunk:#eef2f7;--ink:#0f1b2d;--ink-2:#334155;--muted:#5b6b80;--line:#e1e7ef;
  --accent:#3b82f6;--accent-ink:#1d4ed8;--accent-soft:#e8f0fe;--on-accent:#ffffff;
  --nav:#0b1b33;--nav-2:#13284a;--nav-line:#1d3358;--on-nav:#e6edf8;--on-nav-muted:#8fa3c2;
  --ok:#15803d;--ok-soft:#dcfce7;--bad:#b91c1c;--bad-soft:#fee2e2;--warn:#b45309;--warn-soft:#fef3c7;
  --dev:#7c3aed;--dev-soft:#ede9fe;
  --code-bg:#0b1b33;--code-ink:#dbe6f7;
  --shadow:0 1px 2px rgba(15,27,45,.05),0 8px 24px -14px rgba(15,27,45,.25);
  --radius:12px;--sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
  --side:288px;--top:60px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#08101f;--paper:#0e182b;--sunk:#13203a;--ink:#e6ecf5;--ink-2:#c3cede;--muted:#8fa0b8;--line:#1e2c45;
    --accent:#60a5fa;--accent-ink:#93c5fd;--accent-soft:#132a50;--on-accent:#06122a;
    --nav:#060d1a;--nav-2:#0f1d36;--nav-line:#172846;--on-nav:#e6edf8;--on-nav-muted:#7f94b5;
    --ok:#4ade80;--ok-soft:#0f2e1c;--bad:#f87171;--bad-soft:#3a1717;--warn:#fbbf24;--warn-soft:#33260b;
    --dev:#a78bfa;--dev-soft:#241a45;
    --code-bg:#050b16;--code-ink:#dbe6f7;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 28px -14px rgba(0,0,0,.7);color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#08101f;--paper:#0e182b;--sunk:#13203a;--ink:#e6ecf5;--ink-2:#c3cede;--muted:#8fa0b8;--line:#1e2c45;
  --accent:#60a5fa;--accent-ink:#93c5fd;--accent-soft:#132a50;--on-accent:#06122a;
  --nav:#060d1a;--nav-2:#0f1d36;--nav-line:#172846;--on-nav:#e6edf8;--on-nav-muted:#7f94b5;
  --ok:#4ade80;--ok-soft:#0f2e1c;--bad:#f87171;--bad-soft:#3a1717;--warn:#fbbf24;--warn-soft:#33260b;
  --dev:#a78bfa;--dev-soft:#241a45;
  --code-bg:#050b16;--code-ink:#dbe6f7;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 28px -14px rgba(0,0,0,.7);color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--top) + 20px)}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 var(--sans);font-feature-settings:"cv11","ss01";-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:var(--accent-ink);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--on-accent);padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
code,kbd{font-family:var(--mono);font-size:.86em;background:var(--sunk);border:1px solid var(--line);padding:.08em .38em;border-radius:6px}
h1,h2,h3,h4{line-height:1.25;letter-spacing:-.015em;color:var(--ink)}

/* ---------- Top bar ---------- */
.topbar{position:sticky;top:0;z-index:40;height:var(--top);background:var(--nav);color:var(--on-nav);border-bottom:1px solid var(--nav-line);display:flex;align-items:center;gap:12px;padding:0 16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--on-nav);text-decoration:none;font-weight:700;letter-spacing:-.01em;font-size:1.02rem;margin-right:auto}
.brand svg{width:30px;height:30px;flex:none}
.brand b{color:#60a5fa;font-weight:700}
.brand:hover{color:#fff}
.top-links{display:flex;align-items:center;gap:4px}
.top-links a{color:var(--on-nav-muted);text-decoration:none;font-size:.9rem;font-weight:500;padding:8px 12px;border-radius:8px}
.top-links a:hover,.top-links a[aria-current]{color:#fff;background:var(--nav-2)}
.icon-btn{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:9px;border:1px solid var(--nav-line);background:transparent;color:var(--on-nav);cursor:pointer}
.icon-btn:hover{background:var(--nav-2)}
.icon-btn svg{width:18px;height:18px}
.menu-btn{display:none}
.top-progress{position:absolute;left:0;bottom:-1px;height:2px;background:#60a5fa;width:0;transition:width .1s linear}

/* ---------- Shell ---------- */
.shell{display:grid;grid-template-columns:var(--side) minmax(0,1fr);min-height:calc(100vh - var(--top))}
.sidebar{position:sticky;top:var(--top);height:calc(100vh - var(--top));overflow-y:auto;background:var(--nav);color:var(--on-nav);border-right:1px solid var(--nav-line);padding:18px 14px 28px;scrollbar-width:thin;scrollbar-color:var(--nav-line) transparent}
.side-progress{background:var(--nav-2);border:1px solid var(--nav-line);border-radius:10px;padding:12px 14px;margin-bottom:18px}
.side-progress p{margin:0 0 8px;font-size:.8rem;color:var(--on-nav-muted)}
.side-progress strong{color:var(--on-nav)}
.meter{height:6px;border-radius:99px;background:var(--nav-line);overflow:hidden}
.meter i{display:block;height:100%;width:0;background:linear-gradient(90deg,#3b82f6,#60a5fa);border-radius:inherit;transition:width .4s}
.side-group{margin:0 0 16px}
.side-group h4{margin:0 0 6px;padding:0 10px;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.09em;color:var(--on-nav-muted);display:flex;justify-content:space-between;align-items:center}
.side-group h4 .tag{font-size:.62rem;letter-spacing:.06em;border:1px solid var(--nav-line);border-radius:99px;padding:1px 7px;text-transform:none;font-weight:600}
.side-group ol{list-style:none;margin:0;padding:0}
.side-group a{display:flex;align-items:center;gap:10px;padding:7px 10px;border-radius:8px;color:#c9d6ea;text-decoration:none;font-size:.88rem;line-height:1.35}
.side-group a:hover{background:var(--nav-2);color:#fff}
.side-group a[aria-current]{background:#1e3a6e;color:#fff;box-shadow:inset 3px 0 0 #60a5fa}
.side-group .num{font-family:var(--mono);font-size:.72rem;color:var(--on-nav-muted);width:20px;flex:none}
.side-group .st{margin-left:auto;width:16px;height:16px;flex:none;border-radius:50%;border:1.5px solid var(--nav-line);display:grid;place-items:center;font-size:.6rem;color:transparent}
.side-group [data-state="started"] .st{border-color:#60a5fa;background:radial-gradient(circle,#60a5fa 35%,transparent 40%)}
.side-group [data-state="done"] .st{border-color:#22c55e;background:#22c55e;color:#062a12;font-weight:800}
.side-extra{border-top:1px solid var(--nav-line);padding-top:14px;margin-top:6px}

.content{min-width:0;display:flex;flex-direction:column}
.page-head{padding:36px clamp(16px,4vw,56px) 26px;border-bottom:1px solid var(--line);background:var(--paper)}
.crumbs{font-size:.82rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--accent-ink)}
.page-head h1{margin:0 0 10px;font-size:clamp(1.8rem,3.2vw,2.5rem);font-weight:750;letter-spacing:-.025em;max-width:24ch}
.lede{margin:0;color:var(--ink-2);font-size:1.08rem;max-width:68ch}
.meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:.76rem;font-weight:600;padding:4px 10px;border-radius:99px;background:var(--sunk);color:var(--ink-2);border:1px solid var(--line);white-space:nowrap}
.chip.ok{background:var(--ok-soft);color:var(--ok);border-color:transparent}
.chip.go{background:var(--accent-soft);color:var(--accent-ink);border-color:transparent}
.chip.fn{background:var(--accent-soft);color:var(--accent-ink);border-color:transparent}
.chip.dev{background:var(--dev-soft);color:var(--dev);border-color:transparent}
.chip.found{background:var(--warn-soft);color:var(--warn);border-color:transparent}

.page-body{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:48px;padding:32px clamp(16px,4vw,56px) 56px;max-width:1180px}
.article{min-width:0;max-width:760px}
.article>h2{font-size:1.45rem;margin:2.4em 0 .6em;padding-top:.2em;display:flex;gap:12px;align-items:baseline}
.article>h2:first-child{margin-top:0}
.article>h2 .n{font-family:var(--mono);font-size:.8rem;color:var(--accent-ink);font-weight:500;flex:none}
.article h3{font-size:1.1rem;margin:1.7em 0 .4em}
.article p,.article li{color:var(--ink-2)}
.article li{margin:.25em 0}
.article strong{color:var(--ink)}
.article p code,.article li code{overflow-wrap:anywhere}

.toc{position:sticky;top:calc(var(--top) + 28px);align-self:start;font-size:.85rem;max-height:calc(100vh - var(--top) - 56px);overflow:auto}
.toc h4{margin:0 0 10px;font-size:.72rem;text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}
.toc ol{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.toc a{display:block;padding:5px 0 5px 14px;margin-left:-1px;border-left:2px solid transparent;color:var(--muted);text-decoration:none;line-height:1.35}
.toc a:hover{color:var(--ink)}
.toc a.active{color:var(--accent-ink);border-left-color:var(--accent);font-weight:600}

/* ---------- Content blocks ---------- */
.callout{border:1px solid var(--line);border-left:4px solid var(--accent);background:var(--paper);border-radius:10px;padding:14px 18px;margin:1.4em 0}
.callout p{margin:.3em 0}
.callout .lbl{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;font-weight:700;color:var(--accent-ink);margin-bottom:2px}
.callout.tip{border-left-color:var(--ok)}.callout.tip .lbl{color:var(--ok)}
.callout.warn{border-left-color:var(--warn)}.callout.warn .lbl{color:var(--warn)}
.callout.dev{border-left-color:var(--dev)}.callout.dev .lbl{color:var(--dev)}

.table-wrap{overflow-x:auto;margin:1.3em 0;border:1px solid var(--line);border-radius:10px;background:var(--paper)}
table{border-collapse:collapse;width:100%;font-size:.9rem}
th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--sunk);font-weight:600;color:var(--ink);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}
tr:last-child td{border-bottom:0}
td code{white-space:nowrap}

pre.code{background:var(--code-bg);color:var(--code-ink);border-radius:10px;padding:16px 18px;overflow-x:auto;font:13.5px/1.6 var(--mono);margin:1.3em 0;position:relative;border:1px solid var(--nav-line)}
pre.code code{background:none;border:0;padding:0;font-size:inherit;color:inherit}
pre.code[data-lang]::before{content:attr(data-lang);position:absolute;top:8px;right:12px;font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:#7f94b5}
.tk-k{color:#93c5fd}.tk-s{color:#86efac}.tk-c{color:#7f94b5;font-style:italic}.tk-t{color:#fcd34d}

.flow{display:flex;flex-wrap:wrap;align-items:stretch;gap:8px;margin:1.4em 0;padding:0;list-style:none}
.flow li{flex:1 1 120px;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:10px 12px;position:relative;font-size:.85rem;color:var(--ink-2);margin:0}
.flow li strong{display:block;font-size:.9rem;color:var(--ink)}
.flow li small{display:block;font-family:var(--mono);font-size:.72rem;color:var(--accent-ink);margin-bottom:2px}
.flow li:not(:last-child)::after{content:"→";position:absolute;right:-8px;top:50%;transform:translate(50%,-50%);color:var(--muted);font-size:.9rem;z-index:1}

.tree{font:13.5px/1.75 var(--mono);background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin:1.3em 0;white-space:pre;overflow-x:auto;color:var(--ink-2)}
.tree b{color:var(--accent-ink);font-weight:600}

.grid2,.grid3{display:grid;gap:14px;margin:1.3em 0}
.grid2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.card h3{margin:0 0 6px!important;font-size:1rem}
.card p{margin:0;font-size:.9rem}
.card ul{margin:.4em 0 0;padding-left:1.1em;font-size:.9rem}

/* ---------- Quiz ---------- */
.quiz{margin-top:3em;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px clamp(16px,3vw,28px);box-shadow:var(--shadow)}
.quiz-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.quiz-head h2{margin:0;font-size:1.3rem}
.q{border-top:1px solid var(--line);padding:18px 0}
.q-text{display:flex;gap:10px;font-weight:600;color:var(--ink);margin-bottom:10px}
.q-text>span{font-family:var(--mono);color:var(--accent-ink);font-weight:500}
.q-text>div,.opt>span:last-child,.explain{min-width:0;overflow-wrap:break-word}
.opts{display:grid;gap:8px}
.opt{display:flex;gap:12px;align-items:flex-start;text-align:left;width:100%;font:inherit;font-size:.93rem;color:var(--ink-2);background:var(--bg);border:1px solid var(--line);border-radius:9px;padding:10px 12px;cursor:pointer}
.opt:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft)}
.opt .k{font-family:var(--mono);font-size:.75rem;font-weight:600;width:22px;height:22px;flex:none;border-radius:6px;display:grid;place-items:center;background:var(--sunk);color:var(--muted);margin-top:1px}
.opt:disabled{cursor:default}
.opt.right{border-color:var(--ok);background:var(--ok-soft);color:var(--ink)}
.opt.right .k{background:var(--ok);color:#fff}
.opt.wrong{border-color:var(--bad);background:var(--bad-soft);color:var(--ink)}
.opt.wrong .k{background:var(--bad);color:#fff}
.explain{margin-top:10px;font-size:.9rem;color:var(--ink-2);background:var(--sunk);border-radius:8px;padding:10px 12px}
.quiz-foot{border-top:1px solid var(--line);padding-top:16px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.score{font-weight:600;color:var(--ink)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font:600 .92rem/1 var(--sans);padding:12px 18px;border-radius:9px;text-decoration:none;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--accent);color:var(--on-accent)}
.btn-primary:hover{filter:brightness(1.08);color:var(--on-accent)}
.btn-line{background:var(--paper);color:var(--ink);border-color:var(--line)}
.btn-line:hover{border-color:var(--accent);color:var(--accent-ink)}
.btn-ghost{background:rgba(255,255,255,.06);color:#e6edf8;border-color:rgba(255,255,255,.18)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-sm{padding:9px 13px;font-size:.84rem}

/* ---------- Module end ---------- */
.complete-box{margin-top:2.4em;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;background:var(--accent-soft);border-radius:var(--radius);padding:16px 20px}
.complete-box p{margin:0;color:var(--ink-2)}
.complete-box.done{background:var(--ok-soft)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.pager a{display:block;border:1px solid var(--line);background:var(--paper);border-radius:var(--radius);padding:14px 18px;text-decoration:none}
.pager a:hover{border-color:var(--accent)}
.pager small{display:block;color:var(--muted);font-size:.78rem}
.pager span{color:var(--ink);font-weight:600}
.pager .next{text-align:right;grid-column:2}

/* ---------- Home ---------- */
.home-hero{background:var(--nav);color:var(--on-nav);padding:56px clamp(16px,4vw,56px) 48px;position:relative;overflow:hidden}
.home-hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(59,130,246,.35),transparent 65%);pointer-events:none}
.home-hero .eyebrow{font:500 .78rem var(--mono);color:#60a5fa;letter-spacing:.06em;text-transform:uppercase;margin:0 0 12px}
.home-hero h1{color:#fff;font-size:clamp(2rem,4.2vw,3.1rem);margin:0 0 14px;max-width:20ch;letter-spacing:-.03em}
.home-hero h1 span{color:#60a5fa}
.home-hero p{color:#b8c7de;max-width:62ch;font-size:1.08rem;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;position:relative;z-index:1}
.stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:32px;position:relative;z-index:1}
.stats div{font-size:1.6rem;font-weight:750;color:#fff;line-height:1.1}
.stats span{display:block;font-size:.78rem;font-weight:500;color:var(--on-nav-muted);margin-top:4px}
.home-body{padding:36px clamp(16px,4vw,56px) 56px;max-width:1180px}
.home-body>h2{font-size:1.4rem;margin:2em 0 .3em}
.home-body>h2:first-child{margin-top:0}
.home-body>p.sub{color:var(--muted);margin:0 0 1em}
.tracks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.track{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:8px}
.track h3{margin:0;font-size:1.08rem}
.track p{margin:0;color:var(--ink-2);font-size:.92rem;flex:1}
.track .count{font:500 .78rem var(--mono);color:var(--muted)}
.mod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.mod-card{display:flex;flex-direction:column;gap:6px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;text-decoration:none;color:inherit;transition:border-color .15s,transform .15s}
.mod-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.mod-card .top{display:flex;justify-content:space-between;align-items:center;gap:8px}
.mod-card .num{font:600 .78rem var(--mono);color:var(--accent-ink)}
.mod-card h3{margin:0;font-size:1rem;color:var(--ink)}
.mod-card p{margin:0;font-size:.86rem;color:var(--muted);flex:1}
.mod-card[data-state="done"]{border-color:var(--ok)}
.group-title{display:flex;align-items:baseline;gap:10px;margin:28px 0 12px}
.group-title h3{margin:0;font-size:1.05rem}
.group-title span{color:var(--muted);font-size:.86rem}
.overall{display:flex;align-items:center;gap:18px;flex-wrap:wrap;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;margin:0 0 8px}
.overall .meter{flex:1;min-width:160px;background:var(--sunk)}
.overall small{color:var(--muted)}

/* ---------- Glossary ---------- */
.gl-tools{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 18px}
.gl-tools input{flex:1;min-width:220px;font:inherit;padding:11px 14px;border-radius:9px;border:1px solid var(--line);background:var(--paper);color:var(--ink)}
.gl-tools input:focus{outline:2px solid var(--accent);outline-offset:0;border-color:transparent}
.filters{display:flex;flex-wrap:wrap;gap:6px}
.filters button{font:600 .8rem var(--sans);padding:8px 12px;border-radius:99px;border:1px solid var(--line);background:var(--paper);color:var(--ink-2);cursor:pointer}
.filters button[aria-pressed="true"]{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}
.gl-list{display:grid;gap:10px}
.gl-item{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px 18px}
.gl-item h3{margin:0 0 4px;font-size:1rem;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.gl-item p{margin:0;color:var(--ink-2);font-size:.92rem}
.gl-item a{font-size:.82rem}
.gl-empty{color:var(--muted)}

/* ---------- Footer ---------- */
.site-foot{margin-top:auto;border-top:1px solid var(--line);padding:24px clamp(16px,4vw,56px) 32px;font-size:.84rem;color:var(--muted);background:var(--paper)}
.site-foot p{margin:.3em 0;max-width:90ch}
.site-foot a{color:var(--muted)}

/* ---------- Responsive ---------- */
@media (max-width:1180px){.page-body{grid-template-columns:minmax(0,1fr)}.toc{display:none}}
@media (max-width:980px){.tracks{grid-template-columns:1fr}.grid3{grid-template-columns:1fr 1fr}}
@media (max-width:860px){
  .shell{grid-template-columns:minmax(0,1fr)}
  .sidebar{position:fixed;left:0;top:var(--top);bottom:0;width:min(320px,86vw);height:auto;z-index:35;transform:translateX(-100%);transition:transform .2s ease;box-shadow:0 0 40px rgba(0,0,0,.4)}
  body.nav-open .sidebar{transform:none}
  body.nav-open::after{content:"";position:fixed;inset:var(--top) 0 0 0;background:rgba(3,8,18,.5);z-index:30}
  .menu-btn{display:inline-grid}
  .top-links a.hide-sm{display:none}
}
@media (max-width:600px){
  .grid2,.grid3{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}.pager .next{grid-column:1}
  .flow{flex-direction:column}.flow li:not(:last-child)::after{content:"↓";right:auto;left:50%;top:auto;bottom:-8px;transform:translate(-50%,50%)}
  .top-links a{padding:8px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.topbar,.sidebar,.toc,.quiz,#module-end{display:none}.shell{display:block}}