/* AC3 Optimus Operator Course — stylesheet
   Tokens: ink (navy, monitor panels) · paper · text · steel · trace red (AP, the single accent) · helium blue · trace green */
:root{
  --ink:#142238;--ink-2:#1d2d47;--paper:#f6f7f9;--white:#fff;--fg:#1e2733;--muted:#5f6b7a;--line:#d8dde4;--line-2:#e8ebef;
  --accent:#c9303a;--accent-ink:#a8262f;--blue:#2e6fbe;--ok:#1e8a4c;--bad:#b3261e;--warn:#b7791f;
  --ff:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--fd:"IBM Plex Serif",Georgia,"Times New Roman",serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.55 var(--ff);background:var(--paper);color:var(--fg)}
a{color:var(--blue)}
h1,h2,h3{font-family:var(--fd);font-weight:600;letter-spacing:-.01em;color:var(--ink)}
h1{font-size:1.9rem;line-height:1.2;margin:.2rem 0 1rem}h2{font-size:1.25rem;margin:1.6rem 0 .5rem}h3{font-size:1.05rem;margin:1rem 0 .3rem}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* header */

.brand{font-family:var(--fd);font-weight:600;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:.55rem;font-size:1.05rem}
.brand span{font-weight:400;color:var(--muted);font-family:var(--ff);font-size:.95rem}
.brand .mark{width:22px;height:22px;border-radius:5px;background:var(--ink);position:relative;flex:none}
.brand .mark::after{content:"";position:absolute;left:4px;right:4px;top:12px;height:2px;background:var(--accent);box-shadow:0 -5px 0 0 var(--accent);clip-path:polygon(0 100%,25% 100%,32% 0,45% 0,52% 100%,100% 100%,100% 120%,0 120%)}




.linkbtn{background:none;border:0;font:inherit;cursor:pointer;padding:0}


/* layout */
.layout{display:flex;gap:1.2rem;max-width:1320px;margin:1.5rem auto;padding:0 1.2rem;align-items:flex-start}
.layout main{flex:1 1 0;min-width:0;margin:0;padding:0;max-width:980px}
body.public .layout{display:block;max-width:1120px}
body.public .layout main{max-width:none}
footer{max-width:1120px;margin:3rem auto;padding:0 1.2rem;color:var(--muted);font-size:.85rem;border-top:1px solid var(--line);padding-top:1rem}
footer .tmnote{font-size:.75rem;color:#8a929b}

/* buttons & forms */
button,.btn{display:inline-block;background:var(--accent);color:#fff;border:0;border-radius:6px;padding:.55rem 1rem;font:inherit;font-size:.95rem;font-weight:500;cursor:pointer;text-decoration:none;margin-top:.4rem;line-height:1.2}
button:hover,.btn:hover{background:var(--accent-ink)}
.btn.ghost{background:var(--white);color:var(--ink);border:1px solid var(--line);font-weight:500}
.btn.ghost:hover{border-color:var(--ink);background:var(--white)}
.btn.ghost.disabled{opacity:.4;cursor:default}
button.small{padding:.25rem .6rem;font-size:.8rem;background:var(--muted)}button.small:hover{background:var(--ink)}
.quiet{color:var(--muted);margin-left:.6rem;font-size:.95rem}
label{display:block;margin:.6rem 0;font-size:.95rem}
input[type=text],input[type=password],input:not([type]),select,textarea{width:100%;padding:.55rem .6rem;border:1px solid var(--line);border-radius:6px;font:inherit;font-size:1rem;background:var(--white);margin-top:.2rem}
.card{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:1.2rem 1.4rem;margin-bottom:1rem}
.narrow{max-width:460px;margin:2.5rem auto}
.auth .kinds{border:0;padding:0;margin:0 0 .6rem}.auth legend{font-weight:600;margin-bottom:.3rem}
.kind{display:flex;gap:.6rem;align-items:flex-start;padding:.55rem .6rem;border:1px solid var(--line);border-radius:6px;margin:.3rem 0;cursor:pointer}
.kind:has(input:checked){border-color:var(--ink);background:#f3f5f9}
.kind input{margin-top:.25rem}.kind small{color:var(--muted)}
.kind-fields{padding:.2rem .6rem .4rem;border-left:2px solid var(--line)}
.flash{padding:.6rem .9rem;border-radius:6px;margin-bottom:1rem}.flash.err{background:#fde8e6;color:var(--bad)}.flash.ok{background:#e3f4e8;color:var(--ok)}
.muted{color:var(--muted)}.cite{color:var(--muted);font-size:.85rem}.fine{font-size:.85rem}

/* tables */
table.grid{width:100%;border-collapse:collapse;background:var(--white);border:1px solid var(--line)}
.grid th,.grid td{padding:.6rem .75rem;border-bottom:1px solid var(--line-2);text-align:left;vertical-align:top}
.grid th{background:#f0f2f5;font-size:.82rem;font-weight:600;color:var(--muted)}
.bar{height:6px;background:#e9ecf0;border-radius:3px;margin-top:4px}.bar span{display:block;height:6px;background:var(--ok);border-radius:3px}
.actions .btn{margin-right:.3rem;padding:.35rem .7rem;font-size:.85rem}
.tablewrap{overflow-x:auto;margin:.6rem 0}table.grid.small{font-size:.85rem}table.grid.small th,table.grid.small td{padding:.35rem .5rem}
.team .mgr td{background:#fafbfc}
.teamhead{display:flex;gap:1.5rem;align-items:flex-start;justify-content:space-between;flex-wrap:wrap;margin-bottom:1rem}
.codebox{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:.9rem 1.1rem;min-width:300px}
.codebox .code{font-family:var(--fd);font-size:2rem;letter-spacing:.18em;color:var(--ink)}
.codebox .link{font-size:.8rem;word-break:break-all}

/* reading / nodes */
article.node{background:var(--white);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:6px;padding:1rem 1.2rem;margin-bottom:.9rem;position:relative}
article.node.read{border-left-color:var(--ok)}
.node code,.cite code,.itemid code{background:#f0f2f5;padding:0 .35rem;border-radius:4px;font-size:.85rem}
.statement{font-weight:600}
.diff{font-size:.7rem;padding:.1rem .4rem;border-radius:4px;background:#e9ecf0;margin-left:.4rem;vertical-align:middle}.d2{background:#fff1d6}.d3{background:#fde8e6}
.tick{color:var(--ok);font-size:.85rem}
.itemid{font-size:.8rem;color:var(--muted);margin:0 0 .5rem}.itemid .small{margin:0 0 0 .5rem;vertical-align:middle;padding:.15rem .5rem}
.callout{background:#fff6e5;border:1px solid #ead9b0;border-radius:8px;padding:.7rem 1rem;margin:.5rem 0 1rem}
.node-actions{display:flex;gap:.5rem;align-items:center}.node-actions form{margin:0}
.doc{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:1.4rem 2rem 1.6rem;max-width:860px}
.doc h1{font-size:1.7rem;margin:.2rem 0 .8rem}.doc h2{font-size:1.25rem;margin:1.5rem 0 .5rem;padding-bottom:.25rem;border-bottom:1px solid var(--line)}
.doc h3{font-size:1.02rem;margin:1rem 0 .3rem}.doc p{margin:.45rem 0}.doc ul,.doc ol{margin:.3rem 0 .6rem 1.4rem}
.doc section.node{border:0;border-left:0;padding:0;margin:0 0 1.2rem;background:transparent}
.doc section.node.read h2::after{content:" ✓";color:var(--ok)}
.doc .small-id{font-size:.75rem;font-weight:400;color:var(--muted)}
.crumbs{font-size:.85rem;color:var(--muted)}
ol.doc-steps li{margin:.5rem 0}ol.doc-steps .why{color:#3b4350;margin:.1rem 0 0 0}
dl.controls dt{font-weight:600;margin-top:.6rem}dl.controls dd{margin:.15rem 0 0 1.2rem}
sup.ref{font-size:.7em;line-height:0;margin-left:1px}sup.ref a{color:var(--accent);text-decoration:none}a.refhover{cursor:help}
ol.reflist{font-size:.82rem;color:#444;margin:.3rem 0 0 1.4rem}ol.reflist li{margin:.2rem 0}
.refhead{font-size:.95rem;margin:1rem 0 .2rem}
ol.proclist{margin:.3rem 0 1rem 1.4rem}ol.proclist li{margin:.45rem 0}
figure.tracing{margin:.6rem 0}figure.tracing img{width:100%;height:auto;border-radius:6px;border:1px solid var(--line);display:block}figure.tracing figcaption{font-size:.8rem;margin-top:.25rem}
.figrow{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:.8rem;margin:.6rem 0}.figrow figure.tracing{margin:0}
.procbtn{margin:.6rem 0}
abbr.acr{text-decoration:underline dotted #9aa3ad;cursor:help;outline:none}abbr.acr:focus{background:#fff1d6}
.tip{position:absolute;z-index:50;max-width:360px;background:var(--ink);color:#fff;font-size:.85rem;line-height:1.4;padding:.5rem .7rem;border-radius:6px;box-shadow:0 4px 14px rgba(0,0,0,.25)}

/* cards & quiz */
.flash-card .back{display:none}.flash-card.flipped .back{display:block}
h3.series{margin:0 0 .4rem;font-size:.95rem;color:var(--accent-ink);font-family:var(--ff);font-weight:600}
.rate button{margin-right:.4rem}.rate .again{background:var(--bad)}.rate .hard{background:var(--warn)}.rate .good{background:var(--ok)}.rate .easy{background:var(--blue)}
.decknav{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap}.decknav .keys{font-size:.78rem;margin-left:auto}
.stem{font-weight:600;font-size:1.05rem}
.opt{display:block;padding:.55rem .75rem;border:1px solid var(--line);border-radius:6px;margin:.35rem 0;cursor:pointer;background:var(--white)}
.opt.right{background:#e3f4e8;border-color:var(--ok)}.opt.wrong{background:#fde8e6;border-color:var(--bad)}
.verdict{font-weight:700}.ok{color:var(--ok)}.bad{color:var(--bad)}
.rationale p{margin:.5rem 0;padding:.5rem .7rem;border-left:3px solid var(--line);background:#fafbfc}
.rationale p.ok{border-left-color:var(--ok);background:#f1faf4;color:var(--fg)}

/* scratchpad */
.pad{flex:0 0 300px;position:sticky;top:7.2rem;background:#fffbe6;border:1px solid #e6d9a3;border-radius:8px;padding:.6rem .7rem;height:calc(100vh - 8.5rem);display:flex;flex-direction:column}
.pad-head{display:flex;justify-content:space-between;font-size:.85rem;margin-bottom:.4rem}.pad-head .small{background:#8a7a3a;padding:.1rem .45rem}
.pad textarea{flex:1;width:100%;resize:none;border:0;background:transparent;font:14px/1.45 ui-monospace,Menlo,Consolas,monospace;outline:none;margin:0}
body.pad-hidden .pad{display:none}
.pad-tab{display:none;position:fixed;right:0;top:40%;z-index:40;background:#fffbe6;border:1px solid #e6d9a3;border-right:0;border-radius:8px 0 0 8px;padding:.5rem .6rem;font-size:.85rem;cursor:pointer;color:var(--fg);box-shadow:-2px 2px 8px rgba(0,0,0,.08);margin:0}
body.pad-hidden .pad-tab{display:block}

/* modals */
.modal{border:1px solid var(--line);border-radius:10px;padding:0;width:min(720px,92vw);max-height:85vh}
.modal::backdrop{background:rgba(20,34,56,.45)}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:.7rem 1rem;border-bottom:1px solid var(--line);background:#f0f2f5}
.modal-body{overflow:auto;max-height:calc(85vh - 3.2rem);padding:.8rem 1.2rem}
.modal dl{margin:0}.modal dt{font-weight:600;margin-top:.6rem}.modal dd{margin:.1rem 0 0 1rem;color:#333}
.fb-body label{margin:.5rem 0}

/* ---------- landing page ---------- */
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:2.5rem;align-items:center;padding:2.5rem 0 2rem}
.hero h1{font-size:2.6rem;line-height:1.1;margin:0 0 1rem;max-width:24ch}
.hook{font-family:var(--fd);font-size:1.12rem;line-height:1.45;color:var(--accent-ink);margin:0 0 .9rem;max-width:50ch}
.lede{font-size:1.05rem;max-width:56ch;color:#2b3542;margin:0 0 .9rem}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:.5rem;margin:.4rem 0 1.2rem}
.proof{list-style:none;margin:0;padding:0;max-width:52ch;color:var(--muted);font-size:.93rem}
.proof li{padding:.3rem 0 .3rem 1.1rem;border-left:2px solid var(--line);margin:.2rem 0}
.monitor{background:var(--ink);border-radius:10px;padding:.8rem .8rem .5rem;box-shadow:0 18px 40px -22px rgba(20,34,56,.6)}
.monitor svg{width:100%;height:auto;display:block;border-radius:6px}
.monitor .lab{font:600 11px var(--ff)}.monitor .ecg{fill:#55e07a;stroke:#55e07a}.monitor .ap{fill:#ff6b6b;stroke:#ff6b6b}.monitor .bpw{fill:#6fb3ff;stroke:#6fb3ff}
.monitor .tag{font:600 10px var(--ff);fill:#ffd166}
.monitor .ln{fill:none;stroke-width:2;stroke-linejoin:round;stroke-linecap:round;stroke-dasharray:2000;stroke-dashoffset:2000;animation:draw 2.4s ease-out forwards}
.monitor .ln.ap{animation-delay:.2s}.monitor .ln.bpw{animation-delay:.4s}
@keyframes draw{to{stroke-dashoffset:0}}
.monitor-foot{color:#9fb0c8;font-size:.75rem;margin:.5rem .2rem 0}
.audiences,.inside,.manager,.pricing{padding:1.8rem 0;border-top:1px solid var(--line)}
.audiences h2,.inside h2,.manager h2,.pricing h2{font-size:1.5rem;margin:0 0 1rem}
.aud{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.aud>div{padding:.2rem 1.4rem .4rem 0;border-right:1px solid var(--line)}
.aud>div+div{padding-left:1.4rem}.aud>div:last-child{border-right:0;padding-right:0}
.aud h3{margin:.2rem 0 .4rem;font-size:1.1rem}.aud p{margin:0;color:#2b3542;font-size:.95rem}
ol.path{margin:0;padding:0 0 0 1.3rem;max-width:70ch}ol.path li{margin:.5rem 0;padding-left:.3rem}
.manager p{max-width:70ch}
.plans{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem;max-width:900px}.plans.three{grid-template-columns:1fr 1.15fr 1fr;max-width:1060px;align-items:start}
.plan.featured{border-color:var(--ink);box-shadow:0 10px 30px -18px rgba(20,34,56,.5)}
.plan{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:1.2rem 1.4rem}
.plan h3{margin:0 0 .4rem;font-size:1.25rem}.plan p{margin:.3rem 0}.plan .price{color:var(--muted);font-size:.9rem;margin-bottom:.6rem}

@media (max-width:900px){
  .layout{flex-direction:column}.pad{position:static;flex:none;width:100%;height:220px}
  .hero{grid-template-columns:1fr;gap:1.4rem;padding:1.4rem 0 1rem}.hero h1{font-size:1.9rem}
  .aud{grid-template-columns:1fr}.aud>div{border-right:0;border-bottom:1px solid var(--line);padding:1rem 0!important}.aud>div:last-child{border-bottom:0}
  .plans,.plans.three{grid-template-columns:1fr}
}

label.check{display:flex;gap:.5rem;align-items:center}label.check input{width:auto;margin:0}
.stats{display:flex;flex-wrap:wrap;gap:.6rem;margin:.5rem 0 1rem}.stats div{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:.6rem .9rem;min-width:120px}.stats strong{display:block;font-family:var(--fd);font-size:1.5rem;color:var(--ink)}.stats span{font-size:.8rem;color:var(--muted)}
form.inline{display:inline-flex;gap:.3rem;align-items:center;margin:0}form.inline input,form.inline select{width:auto;margin:0;padding:.25rem .4rem;font-size:.85rem}form.inline button{margin:0}tr.done td{color:var(--muted)}
footer.site{max-width:1120px;margin:3rem auto 1.5rem;padding:1.4rem 1.2rem 0;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
.foot-cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:1.5rem;margin-bottom:1.2rem}
.foot-cols a,.foot-link{display:block;color:var(--fg);text-decoration:none;margin:.25rem 0;font-size:.92rem;text-align:left}
.foot-cols a:hover,.foot-link:hover{color:var(--accent-ink);text-decoration:underline}
.foot-h{font-weight:600;color:var(--ink);margin:0 0 .4rem}.foot-brand{font-family:var(--fd);font-weight:600;font-size:1.1rem;color:var(--ink);margin:0 0 .3rem}
footer.site .fine{font-size:.8rem;margin:.4rem 0}
@media (max-width:760px){.foot-cols{grid-template-columns:1fr 1fr}}
section[id],p[id]{scroll-margin-top:7.5rem}
.abbrkey{font-size:.85rem;color:var(--muted);margin:-.2rem 0 .6rem}
/* ---------- infographics ---------- */
ul.iglist{list-style:none;padding:0;margin:1rem 0}ul.iglist li{padding:.7rem 0;border-top:1px solid var(--line)}
.ig{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:1.6rem 1.8rem;max-width:1100px}
.ig-head h1{font-size:1.7rem;margin:0 0 .5rem;max-width:34ch}
.ig-head .lede{font-size:1rem;max-width:70ch;margin:0 0 .4rem}
.ig-legend{display:flex;gap:.5rem;margin:.8rem 0 0}
.ig-legend .k{font-size:.78rem;font-weight:600;padding:.15rem .55rem;border-radius:4px}
.k.do,.c.do h3{color:var(--ink);background:#e8edf5}.k.ex,.c.ex h3{color:#1e6b3e;background:#e3f4e8}.k.pr,.c.pr h3{color:var(--accent-ink);background:#fbe9ea}
ol.ig-flow{list-style:none;margin:1.4rem 0 0;padding:0}
.ig-stage{display:grid;grid-template-columns:44px 1fr;gap:0 .9rem}
.ig-rail{position:relative;display:flex;justify-content:center}
.ig-rail::before{content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;background:var(--line);transform:translateX(-50%)}
.ig-stage:first-child .ig-rail::before{top:18px}.ig-stage.end .ig-rail::before{bottom:auto;height:18px}
.ig-n{position:relative;z-index:1;width:36px;height:36px;border-radius:50%;background:var(--ink);color:#fff;font-family:var(--fd);font-weight:600;display:flex;align-items:center;justify-content:center;margin-top:.1rem}
.ig-n.done{background:var(--ok)}
.ig-stage.oos .ig-n{background:#fff;color:var(--muted);border:2px dashed var(--muted)}
.ig-body{padding:0 0 1.4rem}
.ig-body h2{margin:.35rem 0 .1rem;font-size:1.15rem}
.ig-meta{color:var(--muted);font-size:.85rem;margin:0 0 .6rem}
.ig-decision{display:flex;gap:.6rem;align-items:flex-start;background:#fff6e5;border:1px solid #ead9b0;border-radius:6px;padding:.5rem .7rem;font-size:.92rem;margin:0 0 .6rem}
.diamond{flex:none;width:12px;height:12px;background:var(--warn);transform:rotate(45deg);margin-top:.35rem}
.ig-cols{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:.7rem}
.ig-cols .c{border:1px solid var(--line-2);border-radius:6px;padding:.1rem .7rem .5rem;font-size:.9rem;background:#fcfcfd}
.ig-cols .c h3{display:inline-block;font-family:var(--ff);font-size:.75rem;font-weight:600;padding:.12rem .5rem;border-radius:4px;margin:.55rem 0 .3rem}
.ig-cols ul{margin:0;padding-left:1.1rem}.ig-cols li{margin:.25rem 0}
.ig-cols dl{margin:0}.ig-cols dt{font-weight:600;margin-top:.4rem}.ig-cols dd{margin:.1rem 0 0}
.proclink{display:inline-block;font-size:.8rem;margin-left:.2rem}
figure.tracing.mini{margin:.5rem 0 0}figure.tracing.mini img{border-radius:4px}
.ig-stage.oos .c{background:#fafafa;color:#4b5563}
@media (max-width:900px){.ig{padding:1.1rem}.ig-cols{grid-template-columns:1fr}}
@media print{
  header.top,footer.site,.pad,.pad-tab,.noprint,#tip{display:none!important}
  body{background:#fff}.layout{display:block;margin:0;padding:0;max-width:none}
  .ig{border:0;padding:0;max-width:none}.ig-stage{break-inside:avoid}
  .ig-cols{grid-template-columns:1fr 1fr 1.15fr}.ig-cols .c{background:#fff}
  a{color:inherit;text-decoration:none}
}
.ig-overview{margin:1.2rem 0 .4rem}
.ig-overview ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.45rem;counter-reset:none}
.ig-overview li a{display:flex;flex-direction:column;gap:.25rem;height:100%;padding:.55rem .6rem .6rem;border:1px solid var(--line);border-radius:6px;background:#fcfcfd;text-decoration:none;color:var(--fg);position:relative}
.ig-overview li a:hover{border-color:var(--ink)}
.ig-overview .ovn{width:24px;height:24px;border-radius:50%;background:var(--ink);color:#fff;font:600 .8rem var(--fd);display:flex;align-items:center;justify-content:center}
.ig-overview .ovt{font-size:.85rem;line-height:1.3}
.ig-overview .ovb{font-size:.72rem;font-weight:600;color:#8a5a00;background:#fff6e5;border:1px solid #ead9b0;border-radius:4px;padding:0 .35rem;align-self:flex-start}
.ig-overview li.oos a{border-style:dashed;color:var(--muted)}.ig-overview li.oos .ovn{background:#fff;color:var(--muted);border:2px dashed var(--muted)}
.ig-overview li.goal a{border-color:var(--ok);background:#f1faf4}.ig-overview li.goal .ovn{background:var(--ok)}
.ig-legend{align-items:center}
.ig-stage{scroll-margin-top:7.5rem}
@media print{.ig-overview{break-after:page}.ig-overview ol{grid-template-columns:repeat(4,1fr)}}

.ig-note{background:#e8edf5;border-left:3px solid var(--ink);border-radius:4px;padding:.5rem .75rem;font-size:.92rem;font-weight:500;margin:0 0 .6rem}
ul.ticks{list-style:none;padding-left:0}ul.ticks li{margin:.35rem 0}
ul.ticks label{display:flex;gap:.5rem;align-items:flex-start;margin:0;font-size:inherit;cursor:pointer}
ul.ticks input.tick{width:1.05rem;height:1.05rem;margin:.2rem 0 0;flex:none;accent-color:var(--ok)}
.signoff{display:flex;flex-wrap:wrap;gap:1rem 2rem;margin:1rem 0 .4rem;padding:.8rem 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:.95rem}
@media print{.ig-check .ig-overview{break-after:auto}.ig-check .ig-cols{grid-template-columns:1.2fr 1fr 1fr}}
/* ---------- troubleshooting ---------- */
.ts{max-width:900px}
.ts .lede{font-size:1.02rem;max-width:68ch}
.ts-emerg{background:#fbe9ea;border-left:3px solid var(--accent);border-radius:4px;padding:.6rem .8rem;font-size:.93rem;max-width:80ch}
.ts-form fieldset{border:0;padding:0;margin:.4rem 0 .8rem}.ts-form legend{font-weight:600;margin-bottom:.35rem}
.pill{display:inline-flex;align-items:center;gap:.35rem;border:1px solid var(--line);border-radius:999px;padding:.3rem .75rem;margin:.2rem .3rem .2rem 0;font-size:.92rem;cursor:pointer;background:var(--white)}
.pill:has(input:checked){border-color:var(--ink);background:#eef2f8}.pill input{margin:0}
.ts-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.4rem 1rem;margin:.2rem 0 .6rem}
.ts-row label small{display:block;margin-top:.15rem}
.ts-answers{margin-top:1.5rem}
.tcard{background:var(--white);border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:6px;padding:.4rem 1rem .6rem;margin:.6rem 0}
.tcard.warn{border-left-color:var(--warn)}.tcard.ok{border-left-color:var(--ok)}
.tcard h3{margin:.5rem 0 .3rem;font-size:1.02rem}.tcard ul{margin:.2rem 0 .3rem 1.1rem;padding:0}.tcard li{margin:.25rem 0}
.ts-sub{margin:1.4rem 0 .4rem;font-size:1.05rem}
details.faq{background:var(--white);border:1px solid var(--line);border-radius:6px;margin:.35rem 0}
details.faq summary{cursor:pointer;padding:.6rem .9rem;font-weight:600;list-style-position:inside}
details.faq[open] summary{border-bottom:1px solid var(--line-2)}
.faq-a{padding:.2rem .9rem .6rem}.faq-a p{margin:.45rem 0}
.faq-links{display:flex;flex-wrap:wrap;gap:.4rem .9rem;align-items:center}.faq-links .quiet{margin:0;font-size:.85rem}

/* ---------- header: two rows ---------- */
header.top{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.hrow{max-width:1320px;margin:0 auto;padding:0 1.4rem;display:flex;align-items:center}
.hrow-1{justify-content:space-between;min-height:56px;gap:1rem}
.hright{display:flex;align-items:center;gap:.6rem}
.hlink{color:var(--fg);text-decoration:none;font-size:.95rem;padding:.35rem .4rem}.hlink:hover{color:var(--accent-ink)}
.small-cta{margin:0;padding:.4rem .85rem;font-size:.9rem;color:#fff}
.mainnav{gap:.2rem;min-height:44px;border-top:1px solid var(--line-2);flex-wrap:wrap}
.mainnav a,.mainnav .linkbtn{color:var(--fg);text-decoration:none;font-size:.93rem;padding:.65rem .7rem;margin:0;border-bottom:2px solid transparent;line-height:1.2}
.mainnav a:hover,.mainnav .linkbtn:hover{color:var(--accent-ink)}
.mainnav a[aria-current="page"]{color:var(--ink);font-weight:600;border-bottom-color:var(--accent)}
.mainnav a:first-child{margin-left:-.7rem}
.navsep{flex:1}
.linkbtn{background:none;border:0;font:inherit;cursor:pointer;padding:0;color:var(--fg)}
/* account menu */
details.acct{position:relative}
details.acct summary{list-style:none;display:flex;align-items:center;gap:.45rem;cursor:pointer;padding:.3rem .55rem .3rem .3rem;border:1px solid var(--line);border-radius:999px;font-size:.92rem;color:var(--fg)}
details.acct summary::-webkit-details-marker{display:none}
details.acct summary::after{content:"";width:6px;height:6px;border-right:1.5px solid var(--muted);border-bottom:1.5px solid var(--muted);transform:rotate(45deg);margin:0 .15rem .2rem .1rem}
details.acct[open] summary{border-color:var(--ink)}
.avatar{width:26px;height:26px;border-radius:50%;background:var(--ink);color:#fff;font:600 .8rem var(--fd);display:flex;align-items:center;justify-content:center}
.acct-menu{position:absolute;right:0;top:calc(100% + 6px);min-width:230px;background:var(--white);border:1px solid var(--line);border-radius:8px;box-shadow:0 12px 30px -12px rgba(20,34,56,.35);padding:.4rem 0;z-index:60}
.acct-menu a{display:block;padding:.5rem .9rem;color:var(--fg);text-decoration:none;font-size:.93rem}
.acct-menu a:hover,.acct-menu a:focus{background:#f3f5f9;color:var(--ink)}
.acct-who{margin:0;padding:.45rem .9rem .6rem;border-bottom:1px solid var(--line-2);font-size:.88rem;line-height:1.35}
/* hamburger */
.hamburger{display:none;background:none;border:1px solid var(--line);border-radius:6px;color:var(--fg);padding:.4rem .6rem;margin:0;align-items:center;gap:.4rem;font-size:.9rem}
.hamburger:hover{background:#f3f5f9}
.hb,.hb::before,.hb::after{display:block;width:16px;height:2px;background:var(--ink);border-radius:1px;position:relative;transition:transform .15s}
.hb::before,.hb::after{content:"";position:absolute;left:0}.hb::before{top:-5px}.hb::after{top:5px}
body.nav-open .hb{background:transparent}body.nav-open .hb::before{top:0;transform:rotate(45deg)}body.nav-open .hb::after{top:0;transform:rotate(-45deg)}
@media (max-width:860px){
  .brand > span:not(.mark){display:none}
  .hamburger{display:inline-flex}
  .acct-label{display:none}
  .mainnav{display:none;flex-direction:column;align-items:stretch;padding:.3rem 0 .6rem}
  body.nav-open .mainnav{display:flex}
  .mainnav a,.mainnav .linkbtn{padding:.7rem 1.4rem;border-bottom:0;border-left:3px solid transparent;text-align:left;font-size:1rem}
  .mainnav a:first-child{margin-left:0}
  .mainnav a[aria-current="page"]{border-left-color:var(--accent);background:#f6f7f9}
  .navsep{flex:none;height:1px;background:var(--line-2);margin:.3rem 1.4rem}
  .hrow{padding:0 1rem}
  header.top{position:static}
}
@media (max-width:640px){.grid th:nth-child(3),.grid td:nth-child(3){display:none}.small-cta{padding:.35rem .6rem}}
.brand,.small-cta,.hlink{white-space:nowrap}
.mainnav .nav-auth{display:none}
@media (max-width:480px){
  .hlink{display:none}
  .mainnav .nav-auth{display:block;border-top:1px solid var(--line-2);margin-top:.3rem}
  .hb-label{display:none}
  .hamburger{padding:.5rem .55rem}
  .hright{gap:.4rem}
}
abbr.mcode{text-decoration:none;font-weight:600;color:var(--ink);cursor:help}
abbr.mcode.chip{display:inline-block;font-size:.72rem;padding:.05rem .4rem;border:1px solid var(--line);border-radius:4px;background:#f3f5f9;vertical-align:middle}
.pill.planned{border-style:dashed}.pill small{font-size:.75rem}
.planned-note{margin:-.4rem 0 .6rem}
[hidden]{display:none!important}

/* registration steps, honeypot */
.step-label{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 .2rem}
.step-label a{text-transform:none;letter-spacing:0;margin-left:.4rem}
.type-cards{display:grid;gap:.6rem;margin:.8rem 0 1rem}
.type-card{display:grid;grid-template-columns:1fr auto;gap:.15rem .8rem;padding:.9rem 1rem;border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--fg);background:var(--white)}
.type-card strong{color:var(--ink);font-family:var(--fd);font-size:1.05rem}
.type-card span{grid-column:1;color:var(--muted);font-size:.92rem}
.type-card .type-go{grid-column:2;grid-row:1/3;align-self:center;color:var(--accent);font-size:1.3rem}
.type-card:hover,.type-card:focus-visible{border-color:var(--ink);background:#f3f5f9}
input[type=email]{width:100%;padding:.55rem .6rem;border:1px solid var(--line);border-radius:6px;font:inherit;font-size:1rem;background:var(--white);margin-top:.2rem}
hr.soft{border:0;border-top:1px solid var(--line-2);margin:1rem 0 .6rem}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.verify-note{display:flex;gap:.8rem;align-items:center;justify-content:space-between;flex-wrap:wrap;background:#fff8e6;border:1px solid #f0d9a8;border-radius:6px;padding:.6rem .9rem;margin-bottom:1rem;font-size:.92rem}
.verify-note form{margin:0}.verify-note button{margin:0}

/* show / hide password */
.pw-wrap{position:relative;display:block}
.pw-wrap input{padding-right:4.2rem}
.pw-toggle{position:absolute;right:.35rem;top:50%;transform:translateY(-50%);margin:.1rem 0 0;background:transparent;color:var(--blue);border:0;padding:.3rem .5rem;font-size:.85rem;font-weight:500}
.pw-toggle:hover{background:#eef3fa;color:var(--ink)}
.field-hint{margin:-.2rem 0 .7rem}

/* ---------- dashboard ---------- */
.dash{max-width:1040px;margin:0 auto}
.dash-head h1{margin-bottom:.1rem}.dash-head p{margin-top:0}
.dash-card{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:1.1rem 1.25rem;margin-bottom:1rem;position:relative}
.dash-card h2{font-size:1.15rem;margin:0 0 .6rem}
.dash-card-head{display:flex;flex-wrap:wrap;gap:.4rem 1rem;align-items:baseline;justify-content:space-between;margin-bottom:.5rem}
.dash-card-head h2{margin:0}.dash-card-head p{margin:0}
.dash-two{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.dash-two .dash-card{margin-bottom:1rem}
@media (max-width:760px){.dash-two{grid-template-columns:1fr;gap:0}}

.next-list{list-style:none;margin:0;padding:0;counter-reset:nx}
.next{display:flex;gap:1rem;align-items:center;justify-content:space-between;padding:.75rem 0;border-top:1px solid var(--line-2);counter-increment:nx}
.next:first-child{border-top:0;padding-top:.2rem}
.next>div:first-child{position:relative;padding-left:2.1rem}
.next>div:first-child::before{content:counter(nx);position:absolute;left:0;top:.05rem;width:1.5rem;height:1.5rem;border-radius:50%;background:var(--ink);color:#fff;font-size:.8rem;display:grid;place-items:center;font-weight:600}
.next:not(:first-child)>div:first-child::before{background:var(--line);color:var(--ink)}
.next p{margin:.15rem 0 0;font-size:.9rem}
.next-go{display:flex;align-items:center;gap:.7rem;flex:none}.next-go .btn{margin:0}
@media (max-width:560px){.next{flex-direction:column;align-items:stretch}.next-go{justify-content:space-between;padding-left:2.1rem}}

.tiles{display:grid;grid-template-columns:repeat(6,1fr);gap:.6rem;margin-bottom:1rem}
.tile{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:.8rem .9rem;display:flex;flex-direction:column;gap:.15rem}
.tile-n{font-family:var(--fd);font-size:1.6rem;font-weight:600;color:var(--ink);line-height:1.1}
.tile-n small{font-size:.9rem;color:var(--muted);font-weight:500}
.tile-l{font-size:.8rem;color:var(--muted);line-height:1.3}
@media (max-width:900px){.tiles{grid-template-columns:repeat(3,1fr)}}
@media (max-width:480px){.tiles{grid-template-columns:repeat(2,1fr)}}

/* heatmap: sequential single-hue blue (dataviz reference ramp 150/300/450/650), gray = no activity */
.heat-scroll{overflow-x:auto;padding-bottom:.3rem}
.heat{--hc:13px;--hg:3px;display:inline-block;min-width:max-content}
.heat-months{display:grid;column-gap:var(--hg);margin-left:2.1rem;font-size:.72rem;color:var(--muted);height:1rem}
.heat-months span{white-space:nowrap}
.heat-body{display:flex;gap:.4rem}
.heat-days{display:grid;grid-template-rows:repeat(7,var(--hc));row-gap:var(--hg);font-size:.68rem;color:var(--muted);width:1.7rem;line-height:var(--hc)}
.heat-grid{display:grid;grid-template-rows:repeat(7,var(--hc));grid-auto-flow:column;gap:var(--hg)}
.hc{display:inline-block;width:var(--hc);height:var(--hc);border-radius:3px;background:#e8ebef}
.hc.l1{background:#b7d3f6}.hc.l2{background:#6da7ec}.hc.l3{background:#2a78d6}.hc.l4{background:#104281}
.hc.empty{background:transparent}
.hc.today{outline:2px solid var(--ink);outline-offset:1px}
.heat-grid .hc[data-tip]{cursor:default}
.heat-legend{display:flex;align-items:center;gap:4px;justify-content:flex-end;margin-top:.4rem}
.heat-legend .hc{--hc:11px;width:11px;height:11px}
.heat-tip{position:fixed;transform:translate(-50%,-100%);background:var(--ink);color:#fff;font-size:.78rem;padding:.3rem .55rem;border-radius:5px;pointer-events:none;white-space:nowrap;z-index:50}
.heat-list{columns:2;font-size:.85rem;margin:.4rem 0 0;padding-left:1.1rem}

.fc-list{list-style:none;padding:0;margin:.4rem 0 .6rem}
.fc-list li{display:grid;grid-template-columns:4.2rem 1fr 2rem;gap:.6rem;align-items:center;padding:.18rem 0;font-size:.88rem}
.fc-day{color:var(--muted)}.fc-n{text-align:right;font-variant-numeric:tabular-nums;color:var(--ink)}
.fc-bar{height:10px;background:#f0f2f5;border-radius:0 4px 4px 0}
.fc-bar span{display:block;height:100%;background:#2a78d6;border-radius:0 4px 4px 0;min-width:0}

.hard-list{list-style:none;margin:0;padding:0}
.hard-list li{padding:.5rem 0;border-top:1px solid var(--line-2);display:flex;flex-direction:column;gap:.1rem}
.hard-list li:first-child{border-top:0}
.hard-list a{text-decoration:none;color:var(--fg)}.hard-list a:hover{color:var(--blue);text-decoration:underline}
.dash-table td{vertical-align:middle}.nowrap{white-space:nowrap}
@media (min-width:900px){.heat{--hc:17px;--hg:4px}}