/* MinneMUDAC 2025 Analytics Playbook — offline static site
   Theme-aware, no external dependencies. */
:root{
  --bg:#f6f7f9; --panel:#ffffff; --ink:#1a2230; --muted:#5b6675;
  --line:#e3e7ee; --brand:#1f5fa8; --brand-2:#2a9d8f; --accent:#e76f2a;
  --code-bg:#0f1626; --code-ink:#e6edf3; --chip:#eef3fb;
  --nov:#2a9d8f; --ug:#1f5fa8; --grad:#7b3fa0;
  --ok:#2a9d8f; --warn:#e0a100; --bad:#d1495b;
  --radius:12px; --shadow:0 1px 3px rgba(20,30,50,.08),0 8px 24px rgba(20,30,50,.06);
  --maxw:960px;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0d1117; --panel:#151b24; --ink:#e6edf3; --muted:#9aa7b8;
    --line:#242c38; --brand:#5aa2e6; --brand-2:#4fd1c5; --accent:#f0854a;
    --code-bg:#0a0f1a; --code-ink:#e6edf3; --chip:#1a2432;
    --shadow:0 1px 3px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35);
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.25;color:var(--ink);margin:1.6em 0 .5em}
h1{font-size:2rem;margin-top:.2em}
h2{font-size:1.5rem;padding-bottom:.3em;border-bottom:2px solid var(--line)}
h3{font-size:1.2rem}
h4{font-size:1.02rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-weight:700}
p{margin:.6em 0}
code{font-family:"SF Mono",ui-monospace,"Cascadia Code",Consolas,monospace;font-size:.9em}
:not(pre)>code{background:var(--chip);padding:.12em .4em;border-radius:5px;color:var(--accent)}

/* Layout */
.layout{display:grid;grid-template-columns:280px 1fr;min-height:100vh}
.sidebar{position:sticky;top:0;height:100vh;overflow-y:auto;background:var(--panel);
  border-right:1px solid var(--line);padding:20px 14px}
.brand{display:flex;gap:10px;align-items:center;margin-bottom:6px}
.brand .logo{width:38px;height:38px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:15px}
.brand b{font-size:15px;line-height:1.15}
.brand small{color:var(--muted);font-size:11.5px}
.nav{margin-top:14px}
.nav a{display:block;padding:7px 10px;border-radius:8px;color:var(--muted);
  font-size:14px;font-weight:500}
.nav a:hover{background:var(--chip);text-decoration:none;color:var(--ink)}
.nav a.active{background:var(--chip);color:var(--brand);font-weight:700}
.nav .group{font-size:11px;text-transform:uppercase;letter-spacing:.06em;
  color:var(--muted);margin:16px 10px 4px;font-weight:700;opacity:.75}
.nav a .dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:8px}
.dot.nov{background:var(--nov)} .dot.ug{background:var(--ug)} .dot.grad{background:var(--grad)}

.main{max-width:var(--maxw);margin:0 auto;padding:34px 30px 120px;width:100%}
.section{display:none;animation:fade .25s ease}
.section.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* Cards & callouts */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;margin:16px 0;box-shadow:var(--shadow)}
.grid{display:grid;gap:14px}
.grid.c2{grid-template-columns:1fr 1fr}
.grid.c3{grid-template-columns:1fr 1fr 1fr}
.callout{border-left:4px solid var(--brand);background:var(--chip);
  padding:12px 16px;border-radius:0 8px 8px 0;margin:14px 0}
.callout.tip{border-color:var(--ok)} .callout.warn{border-color:var(--warn)}
.callout.danger{border-color:var(--bad)}
.callout b{display:block;margin-bottom:2px}
.kbd{font-size:.85em;background:var(--chip);border:1px solid var(--line);
  border-bottom-width:2px;border-radius:5px;padding:1px 6px}

/* Pills / chips */
.pill{display:inline-block;font-size:11.5px;font-weight:700;padding:2px 9px;
  border-radius:999px;background:var(--chip);color:var(--muted);margin:2px 4px 2px 0}
.pill.nov{background:rgba(42,157,143,.14);color:var(--nov)}
.pill.ug{background:rgba(31,95,168,.14);color:var(--ug)}
.pill.grad{background:rgba(123,63,160,.16);color:var(--grad)}
.pill.py{background:rgba(48,105,152,.16);color:#4b8bbe}
.pill.r{background:rgba(30,110,190,.14);color:#276dc3}
.pill.now{background:rgba(209,73,91,.16);color:var(--bad)}
.pill.soon{background:rgba(224,161,0,.18);color:var(--warn)}

/* Checklist (to-do) */
/* 2026 to-do lists: unchecked boxes (pending), scoped so they don't inherit the
   green "done" checkmark that .checklist uses elsewhere on the site */
#challenge2026 .checklist,#agenda .checklist{margin:12px 0 2px}
#challenge2026 .checklist li,#agenda .checklist li{padding:8px 0 8px 28px;position:relative;border-bottom:1px dashed var(--line);font-size:14px}
#challenge2026 .checklist li::before,#agenda .checklist li::before{content:"\2610";position:absolute;left:2px;top:6px;color:var(--muted);font-weight:400;font-size:1.15em}
#challenge2026 .checklist li:last-child,#agenda .checklist li:last-child{border-bottom:none}

/* TeamUp join card (2026 team formation) */
.teamup{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;margin-top:14px}
.teamup .qrframe{background:#fff;padding:12px;border-radius:12px;border:3px solid var(--accent);line-height:0}
.teamup .qrframe img,.teamup .qrframe canvas{display:block;width:170px;height:170px}
.teamup .tu-body{min-width:0}
.teamup .roomcode{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-weight:800;
  font-size:26px;letter-spacing:.04em;color:var(--accent);word-break:break-all;margin-top:3px}
.teamup .tu-link{display:flex;gap:8px;margin:10px 0 2px}
.teamup .tu-link input,.teamup .setrow input{flex:1;min-width:0;font-family:ui-monospace,monospace;
  padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink)}
.teamup .tu-link input{font-size:12px}
.teamup .setrow{display:flex;gap:8px;margin-top:6px}
.teamup .setrow input{font-weight:700;font-size:15px;text-transform:uppercase;letter-spacing:.03em}
.teamup button{font:inherit;font-size:13px;font-weight:700;border:1px solid var(--line);
  background:var(--panel);color:var(--ink);border-radius:8px;padding:8px 12px;cursor:pointer;white-space:nowrap}
.teamup button:hover{border-color:var(--accent);color:var(--accent)}
.teamup button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.teamup button.primary:hover{filter:brightness(1.06);color:#fff}
@media (max-width:640px){.teamup{grid-template-columns:1fr;justify-items:center;text-align:center}}
@media print{
  body *{visibility:hidden}
  #teamup,#teamup *{visibility:visible}
  #teamup{position:absolute;left:0;top:0;width:100%;box-shadow:none;border:none}
  .teamup .no-print{display:none}
}

/* Tables */
table{border-collapse:collapse;width:100%;margin:14px 0;font-size:14px;
  overflow:hidden;border-radius:8px}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:8px}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line)}
th{background:var(--chip);font-weight:700;font-size:12.5px;text-transform:uppercase;
  letter-spacing:.03em;color:var(--muted)}
tr:last-child td{border-bottom:none}
td code{white-space:nowrap}

/* Steps */
.steps{counter-reset:step;list-style:none;padding:0;margin:14px 0}
.steps>li{counter-increment:step;position:relative;padding:2px 0 16px 46px;
  border-left:2px solid var(--line);margin-left:16px}
.steps>li:last-child{border-left-color:transparent}
.steps>li::before{content:counter(step);position:absolute;left:-16px;top:0;
  width:32px;height:32px;border-radius:50%;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:14px}
.steps>li h4{margin:.1em 0 .3em;color:var(--ink);text-transform:none;
  letter-spacing:0;font-size:1.05rem}

/* Code blocks with tabs */
.codeblock{margin:14px 0;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.code-tabs{display:flex;gap:2px;background:var(--panel);padding:6px 6px 0;border-bottom:1px solid var(--line)}
.code-tabs button{border:none;background:transparent;color:var(--muted);
  padding:6px 14px;border-radius:8px 8px 0 0;font-weight:700;font-size:13px;cursor:pointer}
.code-tabs button.active{background:var(--code-bg);color:var(--code-ink)}
.code-pane{display:none;position:relative}
.code-pane.active{display:block}
.code-pane pre{margin:0;background:var(--code-bg);color:var(--code-ink);
  padding:16px 16px;overflow-x:auto;font-size:13px;line-height:1.55}
.code-pane pre code{color:var(--code-ink);font-size:13px}
.copybtn{position:absolute;top:8px;right:8px;background:rgba(255,255,255,.08);
  color:#cdd6e0;border:1px solid rgba(255,255,255,.15);border-radius:6px;
  font-size:11px;padding:3px 9px;cursor:pointer;font-weight:600}
.copybtn:hover{background:rgba(255,255,255,.18)}
/* minimal syntax tint */
.c-com{color:#7d8aa0;font-style:italic}
.c-str{color:#9ece6a}
.c-kw{color:#7aa2f7}
.c-fn{color:#e0af68}
.c-num{color:#ff9e64}

/* rubric bars */
.rubric-row{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;
  padding:8px 0;border-bottom:1px dashed var(--line)}
.rubric-row:last-child{border-bottom:none}
.bar{height:9px;border-radius:5px;background:var(--chip);position:relative;min-width:120px;grid-column:1/-1}
.bar>span{position:absolute;left:0;top:0;bottom:0;border-radius:5px;background:var(--brand)}
.wt{font-weight:800;color:var(--brand);font-size:13px;white-space:nowrap}

.tag{font-size:11px;font-weight:700;padding:2px 7px;border-radius:5px;background:var(--chip);color:var(--muted)}

/* pipeline flow diagram */
.flow{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:18px 0}
.flow .node{border:1px solid var(--line);border-radius:10px;padding:9px 13px;
  font-size:13px;font-weight:700;background:var(--chip);color:var(--ink);text-align:center;line-height:1.3}
.flow .node small{display:block;font-weight:500;color:var(--muted);font-size:11px}
.flow .node.etl{background:rgba(31,95,168,.12);border-color:rgba(31,95,168,.3);color:var(--brand)}
.flow .node.eda{background:rgba(42,157,143,.14);border-color:rgba(42,157,143,.35);color:var(--brand-2)}
.flow .node.ml{background:rgba(231,111,42,.14);border-color:rgba(231,111,42,.35);color:var(--accent)}
.flow .node.raw{background:var(--panel)}
.flow .arr{color:var(--muted);font-weight:800;font-size:15px}
.flow .arr small{display:block;font-size:10px;font-weight:600;text-align:center;white-space:nowrap}
hr{border:none;border-top:1px solid var(--line);margin:26px 0}
.lead{font-size:1.12rem;color:var(--muted)}
.checklist{list-style:none;padding:0}
.checklist li{padding:5px 0 5px 30px;position:relative}
.checklist li::before{content:"✓";position:absolute;left:0;top:5px;color:var(--ok);font-weight:900}
.small{font-size:13px;color:var(--muted)}
.topbar{display:none}
.footer{color:var(--muted);font-size:13px;margin-top:40px;padding-top:16px;border-top:1px solid var(--line)}

/* Mobile */
@media(max-width:820px){
  .layout{grid-template-columns:1fr}
  .sidebar{position:fixed;z-index:40;left:0;top:0;width:280px;transform:translateX(-100%);
    transition:transform .25s ease;box-shadow:var(--shadow)}
  .sidebar.open{transform:none}
  .topbar{display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:30;
    background:var(--panel);border-bottom:1px solid var(--line);padding:10px 16px}
  .topbar button{background:var(--chip);border:1px solid var(--line);border-radius:8px;
    padding:6px 12px;font-size:18px;cursor:pointer;color:var(--ink)}
  .main{padding:20px 16px 100px}
  .grid.c2,.grid.c3{grid-template-columns:1fr}
  .scrim{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:35}
  .scrim.show{display:block}
}