/* founder.curiosta.com: one small stylesheet, system fonts only (no web-font downloads) */
:root{
  --ink:#1c2430; --ink-2:#3a4555; --muted:#667183; --paper:#fbf8f2; --card:#fff; --line:#e7e1d5;
  --accent:#b4540f; --accent-soft:#fbe9da; --gold:#f4b860;
  --l1:#94560a; --l1s:#fbefdc; --l2:#0d6f86; --l2s:#dcf0f4; --l3:#6a43b5; --l3s:#ebe4f8; --l4:#1c7a45; --l4s:#dff2e6;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Charter,Georgia,serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","Helvetica Neue",Arial,sans-serif;
  --radius:14px; --shadow:0 1px 2px rgba(28,36,48,.05),0 6px 20px rgba(28,36,48,.06);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:18px;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--ink)}
h1,h2,h3{font-family:var(--serif);font-weight:700;line-height:1.18;letter-spacing:-.01em;margin:0 0 .5em}
h1{font-size:clamp(2rem,5vw,3.1rem)}
h2{font-size:clamp(1.5rem,3.2vw,2rem);margin-top:1.6em}
h3{font-size:1.25rem;margin-top:1.4em}
p{margin:0 0 1em}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.muted{color:var(--muted)}
.small{font-size:.86rem}
.eyebrow{display:block;font-size:.76rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:.6em}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:#fff;padding:8px 12px;z-index:99}
.draft-banner{background:#fff3c4;color:#5c4400;text-align:center;font-size:.8rem;padding:4px 10px;border-bottom:1px solid #f0dc8a}

/* top bar */
.topbar{background:var(--ink);color:#fff;position:sticky;top:0;z-index:20}
.topbar-in{display:flex;align-items:center;gap:20px;min-height:60px;flex-wrap:wrap}
.wordmark{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:600;letter-spacing:-.01em;font-size:1.02rem}
.wordmark:hover{color:#fff}
.wordmark b{font-weight:400;color:#c9d0db}
.logo{width:28px;height:28px;flex-shrink:0}
.mainnav{display:flex;gap:2px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.mainnav::-webkit-scrollbar{display:none}
.mainnav a{color:#d7dce4;text-decoration:none;font-size:.9rem;padding:7px 11px;border-radius:8px;white-space:nowrap;display:flex;align-items:center;gap:6px}
.mainnav a:hover{background:rgba(255,255,255,.08);color:#fff}
.mainnav a[aria-current]{background:rgba(255,255,255,.12);color:#fff}
.nav-n{display:inline-grid;place-items:center;width:18px;height:18px;border-radius:50%;background:var(--gold);color:var(--ink);font-size:.7rem;font-weight:800}
@media (max-width:860px){
  .topbar{position:static}
  .topbar-in{padding-top:10px;padding-bottom:6px;gap:6px}
  .mainnav{margin:0 -20px;padding:0 14px 4px;width:calc(100% + 40px)}
}

/* home hero */
.hero{padding:64px 0 24px}
.hero h1{max-width:20ch}
.hero h1 em{font-style:normal;color:var(--accent)}
.lede{font-size:1.2rem;color:var(--ink-2);max-width:62ch}
.byline-home{color:var(--muted);font-size:.95rem}

/* the staircase */
.ladder{margin:30px 0 10px}
.stairs{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:12px;align-items:end;position:relative}
.stairs>li{display:flex}
.step{display:flex;flex-direction:column;width:100%;text-decoration:none;color:var(--ink);background:var(--card);border:1px solid var(--line);border-top:6px solid var(--c);border-radius:var(--radius);padding:18px 18px 20px;box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s}
.step:hover{color:var(--ink);transform:translateY(-3px);box-shadow:0 12px 28px rgba(28,36,48,.12)}
.step .num{font-family:var(--serif);font-size:2.4rem;font-weight:700;line-height:1;color:var(--c)}
.step .name{font-family:var(--serif);font-size:1.35rem;font-weight:700;margin:6px 0 4px}
.step .eg{font-size:.88rem;color:var(--muted);margin:0}
.step .go{margin-top:auto;padding-top:14px;font-size:.88rem;font-weight:600;color:var(--c)}
.stairs>li:nth-child(1) .step{--c:var(--l1);min-height:210px;background:linear-gradient(var(--l1s),#fff 70%)}
.stairs>li:nth-child(2) .step{--c:var(--l2);min-height:270px;background:linear-gradient(var(--l2s),#fff 70%)}
.stairs>li:nth-child(3) .step{--c:var(--l3);min-height:330px;background:linear-gradient(var(--l3s),#fff 70%)}
.stairs>li:nth-child(4) .step{--c:var(--l4);min-height:390px;background:linear-gradient(var(--l4s),#fff 70%)}
.ground{height:8px;border-radius:4px;background:repeating-linear-gradient(90deg,var(--ink) 0 14px,transparent 14px 20px);opacity:.15;margin-top:12px}
.climb-svg{display:block;width:100%;height:56px;margin-bottom:-6px}
.ladder-caption{font-size:.9rem;color:var(--muted);margin-top:10px}
@media (max-width:760px){
  .stairs{grid-template-columns:1fr;gap:10px}
  .stairs>li .step{min-height:0 !important}
  .stairs>li:nth-child(2){padding-left:7%}
  .stairs>li:nth-child(3){padding-left:14%}
  .stairs>li:nth-child(4){padding-left:21%}
  .climb-svg,.ground{display:none}
  .step .go{padding-top:8px}
}

/* level detail blocks on home */
.levels{display:grid;gap:18px;margin:16px 0 0}
.level{background:var(--card);border:1px solid var(--line);border-left:6px solid var(--c);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow)}
.level h3{margin:0 0 .2em;font-size:1.45rem}
.level h3 a{color:var(--ink);text-decoration:none}
.level h3 a:hover{color:var(--c)}
.level .what{color:var(--ink-2);margin-bottom:14px}
.level .trio{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.level .trio div{background:var(--paper);border-radius:10px;padding:12px 14px;font-size:.95rem}
.level .trio b{display:block;font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--c);margin-bottom:4px}
.level.l1{--c:var(--l1)}.level.l2{--c:var(--l2)}.level.l3{--c:var(--l3)}.level.l4{--c:var(--l4)}
@media (max-width:760px){.level .trio{grid-template-columns:1fr}.level{padding:18px}}
.band{padding:40px 0}
.band-alt{background:#f3eee4;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.rules{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:10px}
.rules div{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.rules b{display:block;font-family:var(--serif);font-size:1.1rem;margin-bottom:4px}
@media (max-width:760px){.rules{grid-template-columns:1fr}}
.coming{border:2px dashed var(--line);border-radius:var(--radius);padding:22px 24px;background:#fff}

/* level tags + section heroes */
.lvl-tag{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:3px 10px;border-radius:999px}
.lvl-1{background:var(--l1s);color:var(--l1)}.lvl-2{background:var(--l2s);color:var(--l2)}
.lvl-3{background:var(--l3s);color:var(--l3)}.lvl-4{background:var(--l4s);color:var(--l4)}
.crumbs{font-size:.9rem;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted)}
.section-hero{padding:52px 0 34px;border-bottom:1px solid var(--line)}
.lvl-bg-1{background:linear-gradient(var(--l1s),var(--paper))}.lvl-bg-2{background:linear-gradient(var(--l2s),var(--paper))}
.lvl-bg-3{background:linear-gradient(var(--l3s),var(--paper))}.lvl-bg-4{background:linear-gradient(var(--l4s),var(--paper))}
.dek{font-size:1.2rem;color:var(--ink-2)}
.section-body{padding:30px 20px 50px}
.article-card{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow);margin-bottom:10px}
.article-card strong{font-family:var(--serif);font-size:1.3rem;line-height:1.25}
.article-card .go{font-weight:600;color:var(--accent);font-size:.92rem}
.article-card:hover{color:var(--ink);border-color:var(--accent)}
.topics{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.topics li{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 16px}
.topics li .soon{float:right;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:1px 8px;margin-left:10px}
.topics li .live{float:right;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:var(--l4);border-radius:999px;padding:1px 8px;margin-left:10px}

/* articles */
.article-wrap{padding-top:40px;padding-bottom:40px}
.article-wrap h1{font-size:clamp(1.9rem,4.4vw,2.7rem)}
.byline{font-size:.92rem;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:28px}
.prose{font-size:1.06rem}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin-bottom:.45em}
.prose strong{color:var(--ink)}
.prose blockquote{margin:1.4em 0;padding:4px 0 4px 18px;border-left:4px solid var(--gold);color:var(--ink-2);font-style:italic}
.prose table{width:100%;border-collapse:collapse;margin:1.2em 0 1.6em;font-size:.94rem;background:#fff;display:block;overflow-x:auto}
.prose th,.prose td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.prose th{background:#f3eee4;font-weight:700}
@media (max-width:420px){.prose th,.prose td{padding:8px 7px}}
.note,.example{border-radius:12px;padding:16px 20px;margin:1.5em 0;font-size:.98rem}
.note{background:var(--accent-soft);border:1px solid #f1cfb3}
.example{background:#fff;border:1px solid var(--line);border-left:5px solid var(--gold)}
.example > p:first-child,.note > p:first-child{margin-top:0}
.example > :last-child,.note > :last-child{margin-bottom:0}
.tag-hyp{display:inline-block;font-size:.7rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;background:var(--gold);color:var(--ink);border-radius:4px;padding:1px 7px;margin-right:6px;vertical-align:2px}
.formula{font-family:var(--serif);font-size:1.15rem;background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 18px;text-align:center;margin:1.2em 0}
.after{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.next-card{display:flex;flex-direction:column;text-decoration:none;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px}
.next-card strong{font-family:var(--serif);font-size:1.12rem}
.next-card:hover{border-color:var(--accent);color:var(--ink)}
@media (max-width:560px){.after{grid-template-columns:1fr}body{font-size:17px}}

.placeholder{background:#fffbe6;border:2px dashed #e6c34d;border-radius:10px;padding:12px 16px;color:#5c4400;font-size:.95rem}

/* footer */
.footer{background:#f1ece2;border-top:1px solid var(--line);padding:34px 0 18px;margin-top:30px;font-size:.94rem}
.footer-in{display:grid;grid-template-columns:2fr 1fr;gap:20px}
.f-name{font-weight:700;margin-bottom:4px}
.f-links{display:flex;flex-direction:column;gap:4px}
.footer .muted{color:#5c6677}
.footer a{color:#a24b0d}
@media (max-width:640px){.footer-in{grid-template-columns:1fr}}
@media print{.topbar,.footer,.draft-banner,.after{display:none}body{background:#fff}}
.prose dl{margin:0 0 1.5em}
.prose dt{margin-top:1.1em;font-family:var(--serif);font-size:1.12rem}
.prose dd{margin:.2em 0 0 0;color:var(--ink-2)}
.prose h2:first-child{margin-top:0}

/* ---------- business math pages ---------- */
.bm h2{scroll-margin-top:80px}
.bm-toc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:0 0 1.4em;font-size:.95rem}
.bm-toc ul{margin:.4em 0 0;padding-left:1.1em;columns:2;column-gap:28px}
@media (max-width:560px){.bm-toc ul{columns:1}}
.bm-topic{border-top:1px solid var(--line);margin-top:2em;padding-top:.4em}
.bm-hub{list-style:none;padding:0;display:grid;gap:10px}
.bm-hub li{margin:0}
.bm-hub .article-card strong{font-size:1.15rem}
.formula{text-align:left;display:flex;flex-direction:column;gap:6px;overflow-x:auto}
.formula .f-label{font-family:var(--sans);font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.formula .f-line{font-size:1.05rem;line-height:2.2}
.frac{display:inline-flex;flex-direction:column;vertical-align:middle;text-align:center;margin:0 .2em;line-height:1.25}
.frac .fn{border-bottom:1.5px solid currentColor;padding:0 .3em .1em}
.frac .fd{padding:.1em .3em 0}
.defs dt{font-weight:700;margin-top:.7em;font-family:var(--sans);font-size:1rem}
.defs dd{margin:.1em 0 0;color:var(--ink-2)}
.ex-head{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px}
.ex-head strong{font-family:var(--serif);font-size:1.08rem}
.lvl-badge{display:inline-block;font-size:.7rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;border-radius:4px;padding:1px 7px}
.lvl-badge.basic{background:var(--l4s);color:var(--l4)}
.lvl-badge.intermediate{background:var(--l2s);color:var(--l2)}
.lvl-badge.advanced{background:var(--l3s);color:var(--l3)}
.example ul{margin:.4em 0 .6em}
.example table{font-size:.9rem}
.rounding{font-size:.9rem}
.quiz{margin-top:2.4em;border-top:3px solid var(--ink);padding-top:.6em}
.qlist{list-style:none;padding:0;margin:0;counter-reset:qn}
.qlist > li{counter-increment:qn;margin:0 0 16px}
.q{border:1px solid var(--line);border-radius:14px;background:#fff;padding:16px 18px 12px;margin:0;min-width:0}
.q legend{padding:0;font-weight:600;line-height:1.5;display:block;width:100%;margin-bottom:10px}
.q legend::before{content:"Q" counter(qn) ". ";font-family:var(--serif);color:var(--accent)}
.q-meta{display:block;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.opts{display:grid;gap:8px}
.opt{display:flex;align-items:flex-start;gap:10px;border:1px solid var(--line);border-radius:10px;padding:10px 12px;cursor:pointer;background:var(--paper);font-size:1rem;line-height:1.45}
.opt:hover{border-color:var(--accent)}
.opt input{margin:.2em 0 0;accent-color:var(--accent);flex-shrink:0;width:18px;height:18px}
.opt-l{font-weight:700;color:var(--muted);min-width:1em}
.opt.opt-right{border-color:var(--l4);background:var(--l4s)}
.opt.opt-wrong{border-color:#c2412d;background:#fde8e4}
.q input:disabled + .opt-l{opacity:.8}
.q.is-right{border-color:var(--l4)}
.q.is-wrong{border-color:#e3a395}
.feedback{margin:10px 0 0;font-weight:600;font-size:.95rem}
.fb-right{color:var(--l4)}
.fb-wrong{color:#a8321f}
.reveal{margin-top:10px;font-size:.95rem}
.reveal summary{cursor:pointer;color:var(--accent);font-weight:600}
.reveal .ans{margin-top:.6em}
.whys-h{font-weight:600;margin-bottom:.2em}
.whys{margin-top:0}
.score{position:sticky;bottom:10px;background:var(--ink);color:#fff;border-radius:14px;padding:14px 18px;margin-top:12px;box-shadow:0 8px 24px rgba(0,0,0,.2);display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;justify-content:space-between}
.score[hidden]{display:none}
.score p{margin:0;font-weight:600}
.score.done{background:var(--l4)}
.btn{font:inherit;font-size:.9rem;font-weight:600;background:#fff;color:var(--ink);border:0;border-radius:8px;padding:8px 14px;cursor:pointer}
.js-on .nojs-hint{display:none}
.q legend{float:left;width:100%}
.q legend + *{clear:both}
@media (max-width:560px){
  .score{padding:10px 14px;bottom:6px;gap:6px 10px}
  .score p{font-size:.88rem}
  .btn{padding:6px 10px;font-size:.82rem}
  .formula .f-line{font-size:.98rem}
}
.prose .bm-hub{padding-left:0}

/* home level cards: link to business-math hub */
.level .bm-link{margin:.9rem 0 0}

/* Search interest (click-to-load Google Trends) */
.trends{margin:2.2rem 0 0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow)}
.trends h2{font-size:1.35rem;margin-bottom:.35em}
.trends .small{margin:.2em 0 .8em}
.trends-kw{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0 0 14px}
.trends-kw li{background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:3px 12px;font-size:.88rem;font-weight:600;color:var(--ink-2)}
.trends-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px}
.trends .trends-load{background:var(--ink);color:#fff;padding:9px 16px}
.trends .trends-load:hover{background:var(--accent)}
.trends .trends-load:disabled{opacity:.7;cursor:progress}
.trends-open{font-size:.92rem;font-weight:600}
.trends-frame{min-height:340px;margin:0 0 12px;overflow:hidden}
.trends-frame iframe{width:100%!important;max-width:100%}
.trends-note{margin:.8em 0 0}

/* Aspiration self-evaluation */
.self-eval .note{margin-bottom:1.4rem}
.se-q{border:1px solid var(--line);background:var(--card);border-radius:var(--radius);padding:16px 18px 12px;margin:0 0 14px;box-shadow:var(--shadow)}
.se-q legend{font-weight:700;padding:0 4px;font-size:1rem;line-height:1.4}
.se-n{color:var(--accent);margin-right:2px}
.se-opts{display:grid;gap:6px;margin-top:8px}
.se-opt{display:flex;gap:10px;align-items:flex-start;padding:7px 10px;border-radius:9px;cursor:pointer;font-size:.95rem;line-height:1.45}
.se-opt:hover{background:var(--paper)}
.se-opt input{margin-top:4px;flex:none;accent-color:var(--accent)}
.se-opt span:first-of-type{flex:1}
.se-lvl{flex:none;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:1px 8px;margin-top:2px}
.se-js .se-lvl,.se-js .se-guide{display:none}
.se-unanswered{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}
.se-actions{display:flex;gap:10px;margin:18px 0 6px}
.se-actions .se-go{background:var(--ink);color:#fff;padding:10px 18px;font-size:1rem}
.se-actions .se-go:hover{background:var(--accent)}
.se-actions .se-reset{border:1px solid var(--line)}
.se-missing{color:var(--accent);font-weight:600}
.se-result{background:var(--card);border:2px solid var(--ink);border-radius:var(--radius);padding:20px 22px;margin:22px 0;scroll-margin-top:80px}
.se-best{font-size:1.1rem}
.se-bars{display:grid;gap:6px;margin:12px 0 4px}
.se-bar{display:grid;grid-template-columns:14em 1fr 2.2em;align-items:center;gap:10px;font-size:.88rem}
.se-bar-t{background:var(--paper);border-radius:6px;height:12px;overflow:hidden}
.se-bar-t span{display:block;height:100%;background:var(--c,var(--accent))}
.se-bar-n{text-align:right;font-weight:700}
.se-l1{--c:var(--l1)}.se-l2{--c:var(--l2)}.se-l3{--c:var(--l3)}.se-l4{--c:var(--l4)}
.se-path{border-left:5px solid var(--c);background:var(--card);border-radius:10px;padding:12px 16px;margin:14px 0;box-shadow:var(--shadow)}
.se-path h3{font-size:1.1rem;margin-bottom:.4em}
.se-path dl{margin:0;display:grid;grid-template-columns:5.5em 1fr;gap:4px 10px;font-size:.93rem}
.se-path dt{font-weight:700;color:var(--c)}
.se-path dd{margin:0}
.se-links{font-size:.9rem;margin:.6em 0 0}
.se-guide{margin:26px 0;padding:16px 20px;border:2px dashed var(--line);border-radius:var(--radius);background:#fff}
.se-paths{margin-top:30px}
@media (max-width:560px){.se-bar{grid-template-columns:8.5em 1fr 2em}.se-path dl{grid-template-columns:1fr}.se-path dt{margin-top:6px}}
.self-check-link{margin:1.6rem 0 0;font-size:.95rem}
.band-self{padding-top:10px;padding-bottom:10px}
.self-card{background:var(--card);border:2px solid var(--ink);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow)}
.self-card .self-btn{display:inline-block;background:var(--ink);color:#fff;text-decoration:none;padding:10px 18px;font-size:1rem}
.self-card .self-btn:hover{background:var(--accent);color:#fff}
.se-result h2{margin-top:0}
.se-result>.se-path:first-of-type,.se-path h3{margin-top:0}

/* Events calendar */
.cal-wrap{max-width:900px}
.cal-note{margin-bottom:1.2rem}
.cal-note p{margin:.3em 0}
.cal-target{display:block;height:0;scroll-margin-top:84px}
.cal-filter{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:0 0 6px}
.cal-f-l{font-weight:700;font-size:.9rem;margin-right:4px}
.cal-filter a{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:var(--card);text-decoration:none;color:var(--ink);font-size:.9rem;font-weight:600}
.cal-filter a:hover{border-color:var(--ink)}
.cal-filter .nav-n{width:20px;height:20px;font-size:.75rem}
.cal-filter .f-all,#level-1:target~.cal-filter .f-1,#level-2:target~.cal-filter .f-2,#level-3:target~.cal-filter .f-3,#level-4:target~.cal-filter .f-4{background:var(--ink);color:#fff;border-color:var(--ink)}
.cal-target:target~.cal-filter .f-all{background:var(--card);color:var(--ink);border-color:var(--line)}
.cal-showing{font-size:.9rem;color:var(--muted);margin:4px 0 14px}
.cal-showing span{display:none}
.cal-showing .s-all,#level-1:target~.cal-showing .s-1,#level-2:target~.cal-showing .s-2,#level-3:target~.cal-showing .s-3,#level-4:target~.cal-showing .s-4{display:inline}
.cal-target:target~.cal-showing .s-all{display:none}
#level-1:target~.cal-sec .ev:not(.lv-1),#level-2:target~.cal-sec .ev:not(.lv-2),#level-3:target~.cal-sec .ev:not(.lv-3),#level-4:target~.cal-sec .ev:not(.lv-4){display:none}
#level-1:target~.cal-sec .cal-group:not(:has(.lv-1)),#level-2:target~.cal-sec .cal-group:not(:has(.lv-2)),#level-3:target~.cal-sec .cal-group:not(:has(.lv-3)),#level-4:target~.cal-sec .cal-group:not(:has(.lv-4)){display:none}
.cal-sec,.cal-key{margin:26px 0}
.cal-sec h2,.cal-key h2{margin-bottom:.3em}
.cal-month{font-size:1rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:22px 0 8px;font-family:var(--sans)}
.ev-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.ev{display:grid;grid-template-columns:150px 1fr;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px;box-shadow:var(--shadow);scroll-margin-top:84px}
.ev:target{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.ev-date strong{display:block;font-size:1rem;line-height:1.35}
.ev-tba,.ev-now{display:block;font-size:.78rem;color:var(--muted);margin-top:3px}
.ev-now{display:inline-block;background:var(--accent);color:#fff;border-radius:999px;padding:1px 8px;font-weight:700}
.ev-body h3{font-size:1.08rem;margin:0 0 .25em;line-height:1.35}
.ev-body p{margin:.25em 0;font-size:.93rem}
.ev-meta{color:var(--ink-2)}
.ev-k{font-weight:700}
.ev-foot{display:flex;flex-wrap:wrap;gap:6px 12px;align-items:center;justify-content:space-between}
.ev-lv{display:inline-flex;flex-wrap:wrap;gap:4px}
.ev-lv .lvl{font-size:.74rem;padding:1px 8px;border-radius:999px;font-weight:600}
.ev-link{font-weight:600;white-space:nowrap}
.ev-link::after{content:" \2197"}
.ev-src{font-size:.85rem;color:var(--muted);margin-top:4px}
.ev-src summary{cursor:pointer}
.badge{display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;border-radius:6px;padding:1px 7px;margin-right:4px;vertical-align:1px;white-space:nowrap}
.b-gov{background:#1c2430;color:#fff}
.b-govrec{background:#e6eef7;color:#1d4a7a;border:1px solid #b8cde4}
.b-ind{background:#f3ece0;color:#6b4a12;border:1px solid #e2d3b8}
.cal-key{border-top:3px solid var(--ink);padding-top:10px}
.upcoming-events{margin:2rem 0}
.upcoming-events h2{margin-bottom:.2em}
.ev-compact{grid-template-columns:130px 1fr;padding:12px 16px}
.ev-compact h3 a{text-decoration:none;color:var(--ink)}
.ev-compact h3 a:hover{text-decoration:underline}
@media (max-width:620px){.ev,.ev-compact{grid-template-columns:1fr;gap:4px}.cal-filter a{padding:5px 10px;font-size:.85rem}}
.self-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.self-grid .self-card{display:flex;flex-direction:column}
.self-grid .self-card p:last-child{margin-top:auto;margin-bottom:0}
@media (max-width:760px){.self-grid{grid-template-columns:1fr}}

/* Sub-levels */
.subs-mini{list-style:none;margin:10px 0 0;padding:8px 0 0;border-top:1px dashed var(--line);font-size:.78rem;color:var(--ink-2);display:grid;gap:2px}
.subs-mini li{line-height:1.35}
.subs-mini span{display:inline-block;min-width:2.1em;font-weight:700;color:var(--c)}
.sublevels{margin:2.2rem 0}
.sublevels h2{margin-bottom:.3em}
.draft-note{background:#fff8e6;border:1px solid #f0d9a0;border-radius:10px;padding:10px 14px;font-size:.93rem}
.sub-list{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:12px;counter-reset:none}
.sub{display:grid;grid-template-columns:64px 1fr;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px;box-shadow:var(--shadow);scroll-margin-top:84px}
.sub:target{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.sub-n{font-family:var(--serif);font-size:1.6rem;font-weight:700;color:var(--ink);line-height:1.1}
.sub-b h3{margin:0 0 .3em;font-size:1.12rem}
.sub-b p{margin:.3em 0;font-size:.95rem}
.sub-b dl{margin:.5em 0 0;display:grid;grid-template-columns:6.5em 1fr;gap:4px 10px;font-size:.92rem}
.sub-b dt{font-weight:700}
.sub-b dd{margin:0}
.sub-art{font-weight:600}
.se-subres{margin:12px 0;padding:12px 16px;border-radius:10px;background:var(--paper);border:1px solid var(--line)}
.se-subres h3{margin:0 0 .3em;font-size:1.08rem}
.se-subres p{margin:.3em 0;font-size:.95rem}
.se-subguide{font-size:.92rem}
.se-subguide ul{margin:.3em 0 .6em}
@media (max-width:560px){.sub{grid-template-columns:1fr;gap:4px}.sub-b dl{grid-template-columns:1fr}.sub-b dt{margin-top:6px}}
/* ---- ideas from books */
.idea{border-top:1px solid var(--line);padding-top:6px;margin-top:28px;scroll-margin-top:16px}
.idea h2{margin-top:.6em}
.try{background:var(--accent-soft);border:1px solid #f1cfb3;border-radius:12px;padding:12px 16px;margin:1.2em 0 0}
.idea-toc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 22px;margin:1.5em 0}
.idea-toc h2{font-size:1.1rem;margin:0 0 .4em}
.idea-toc ol{margin:0;padding-left:1.4em;columns:2;column-gap:28px}
.idea-toc li{break-inside:avoid;margin:.15em 0;font-size:.96rem}
@media (max-width:620px){.idea-toc ol{columns:1}}
.idea-articles{margin:1em 0 1.5em}
.book-list{margin:1.5em 0}
.from-books{margin-top:36px;padding:20px 22px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
.from-books h2{margin-top:0}
.from-books h3{font-size:1rem;margin:1em 0 .3em}
.from-books ul{margin:0;padding-left:1.2em}
.from-books li{margin:.2em 0}
.self-grid.three{grid-template-columns:repeat(3,1fr)}
@media (max-width:980px){.self-grid.three{grid-template-columns:1fr 1fr}}
@media (max-width:760px){.self-grid.three{grid-template-columns:1fr}}
/* ---- mind maps (/how-the-levels-connect/ and level-page mini-maps) */
.mm-legend{list-style:none;display:flex;flex-wrap:wrap;gap:6px 18px;padding:10px 14px;margin:1em 0;background:var(--card);border:1px solid var(--line);border-radius:12px;font-size:.92rem}
.mm-legend li{display:flex;align-items:center;gap:8px}
.mm-toc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px 20px;margin:1.2em 0}
.mm-toc ol{margin:0;padding-left:1.3em}
.mm-sec{padding-top:34px;padding-bottom:10px;scroll-margin-top:70px}
.mm-sec h2{font-family:var(--serif);font-size:1.6rem;line-height:1.25;margin:0 0 .5em}
.mm-intro,.mm-list-wrap{margin-left:auto;margin-right:auto}
.mm-hint{font-size:.92rem;color:var(--muted)}
@media (min-width:1000px){.mm-hint{display:none}}
.mm-fig{margin:1em 0}
.mm-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:6px}
.mm-scroll:focus{outline:2px solid var(--accent);outline-offset:2px}
.mm-svg{display:block;width:100%;height:auto;min-width:1000px}
.mm-svg.mm-main{min-width:1150px}
.mm-fig,.mm-outline,.mm-chain,.mm-split{scroll-margin-top:104px}
@media (min-width:1200px){.mm-fig-main{width:min(1340px,calc(100vw - 40px));margin-left:calc(50% - min(670px,50vw - 20px))}}
.mm-chain-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.mm-chain-scroll:focus{outline:2px solid var(--accent);outline-offset:2px}
.mm-chain-scroll .mm-svg.mm-small{min-width:380px}
.mm-swipe{display:none;margin:0 0 .3rem;font-size:.85rem;color:#4a5466}
@media (max-width:440px){.mm-swipe{display:block}}
.mm-svg.mm-small{min-width:0;max-width:440px;margin:0 auto}
.mm-svg a:hover rect,.mm-svg a:focus rect,.mm-mini-svg a:hover rect{stroke-width:3}
.mm-svg a:focus{outline:none}
.mm-svg a:focus rect{stroke:#b4540f}
.mm-l{font-size:11.5px;font-weight:600}
.mm-cap{font-size:.95rem;color:var(--ink-2);margin:.7em auto 0;max-width:760px}
.mm-outline{margin:1.2em 0}
.mm-outline h3{font-size:1.05rem;margin:0 0 .5em}
.mm-out-l{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:6px 0;padding:0 14px}
.mm-out-l summary{cursor:pointer;padding:10px 0;font-weight:700}
.mm-out-l ul{margin:.2em 0 .8em;padding-left:1.2em}
.mm-out-l li{margin:.3em 0}
.mm-flows{font-size:.9rem;color:var(--ink-2);list-style:disc}
.mm-pair{display:grid;grid-template-columns:1fr;gap:18px}
.mm-chains{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.mm-chain{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;margin:0}
.mm-chain h3{margin:0 0 .5em;font-size:1.15rem}
.mm-split .mm-fig-small{background:var(--paper);border-radius:10px;padding:8px 4px}
.mm-split ul{margin:.6em 0 0;padding-left:1.2em}
.mm-split li{margin:.3em 0}
.mm-climb-list li{margin:.5em 0}
.mm-mini{display:grid;grid-template-columns:minmax(0,320px) 1fr;gap:18px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px;margin:28px 0}
.mm-mini p{margin:0;font-size:.98rem}
.mm-mini-svg{display:block;width:100%;height:auto}
@media (max-width:640px){.mm-mini{grid-template-columns:1fr}.mm-sec h2{font-size:1.35rem}}

/* mobile nav: the last visible item fades out at the right edge, a cue that the row scrolls sideways;
   a trailing spacer means nothing real is faded once you reach the end */
@media (max-width:1000px){
  .mainnav{-webkit-mask-image:linear-gradient(to right,#000 calc(100% - 64px),transparent);mask-image:linear-gradient(to right,#000 calc(100% - 64px),transparent)}
  .mainnav::after{content:"";flex:0 0 60px}
}
.ev-nolink{font-size:.88rem;color:var(--muted)}