:root{
  --ink:#14213d; --ink2:#2b3a55; --text:#1f2633; --muted:#5d6676; --bg:#f7f4ee; --paper:#ffffff; --line:#e4ded2;
  --gold:#d9a441; --gold2:#b8862b; --teal:#2a6f6a; --teal-bg:#e8f2f0; --red:#a63d32; --red-bg:#fbeeec; --code:#f1ede4;
  --serif: "Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --sans: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono: ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r:14px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.6 var(--sans);overflow-x:hidden}
a{color:var(--teal)}
a:focus-visible,button:focus-visible,textarea:focus-visible,summary:focus-visible,pre:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:8px 12px;z-index:50}
.skip:focus{left:8px;top:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.muted{color:var(--muted);font-size:.92em}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}

/* top bar */
.topbar{position:sticky;top:0;z-index:20;background:var(--ink);color:#fff;box-shadow:0 1px 0 rgba(0,0,0,.2)}
.topbar-in{display:flex;align-items:center;gap:16px;justify-content:space-between;max-width:1200px;margin:0 auto;padding:10px 16px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;min-width:0;flex:1 1 auto;overflow:hidden}
.mark{flex:none;width:34px;height:34px;border-radius:9px;background:var(--gold);color:var(--ink);display:grid;place-items:center;font:700 19px/1 var(--serif)}
.brand-txt{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-txt>span{font:600 15px/1.2 var(--sans);letter-spacing:.02em}
.brand-txt small{font-size:12px;color:#c9d1e0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.prog{flex:none;width:118px}
.prog-txt{display:flex;justify-content:space-between;font-size:11.5px;color:#c9d1e0;margin-bottom:4px;gap:6px}
.prog-pct{color:var(--gold);font-weight:700}
.prog-bar{height:6px;border-radius:6px;background:rgba(255,255,255,.18);overflow:hidden}
.prog-bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold),#f0cf7f);border-radius:6px;transition:width .5s}

/* layout */
.layout{max-width:1200px;margin:0 auto}
.side{padding:12px 16px 0}
.steps{background:var(--paper);border:1px solid var(--line);border-radius:var(--r)}
.steps summary{cursor:pointer;list-style:none;padding:12px 16px;font-weight:600;display:flex;justify-content:space-between;align-items:center}
.steps summary::-webkit-details-marker{display:none}
.steps summary::after{content:"\25BE";color:var(--muted);margin-left:8px}
.steps[open] summary::after{content:"\25B4"}
.steps summary span{margin-left:auto;color:var(--muted);font-weight:500;font-size:.9em}
.grp{padding:4px 12px 10px}
.grp-h{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:8px 6px 4px;font-weight:700}
.grp ol{list-style:none;margin:0;padding:0}
.grp a{display:flex;align-items:baseline;gap:8px;padding:7px 8px;border-radius:9px;color:var(--text);text-decoration:none;font-size:14.5px;line-height:1.35}
.grp a:hover{background:#f3efe6}
.grp a.cur{background:#efe7d6;font-weight:600}
.grp a.lock{color:#8a909b}
.sid{font:600 12px/1 var(--mono);color:var(--muted);min-width:28px}
.st{flex:none;width:14px;height:14px;border-radius:50%;border:2px solid #b9b2a3;position:relative;top:2px}
.st-done{background:var(--teal);border-color:var(--teal)}
.st-done::after{content:"";position:absolute;left:3px;top:0;width:4px;height:7px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}
.st-open{border-color:var(--gold2)}
.st-lock{border-radius:3px;border-color:#cfc8b9;background:#ece7dc}

main{outline:none;min-width:0}
.page{padding-top:22px;padding-bottom:40px}
.crumb{margin:0 0 6px;font-size:13px;letter-spacing:.04em;color:var(--muted);text-transform:uppercase;font-weight:600}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);line-height:1.2}
h1{font-size:30px;margin:0 0 18px;font-weight:700}
.badge{display:inline-block;vertical-align:middle;font:700 12px/1 var(--sans);letter-spacing:.05em;background:var(--ink);color:var(--gold);padding:6px 9px;border-radius:999px;margin-right:10px;position:relative;top:-3px}
.lede-s{font-size:18px;color:var(--ink2)}

/* hero */
.hero{background:radial-gradient(1000px 400px at 80% -10%,#25365c 0%,var(--ink) 60%);color:#fff;padding:52px 0 46px;margin-top:12px}
.hero h1{color:#fff;font-size:40px;margin:6px 0 12px;letter-spacing:-.01em}
.kicker{margin:0;color:var(--gold);font-size:13px;letter-spacing:.12em;text-transform:uppercase;font-weight:700}
.lede{font-size:19px;color:#dfe5f0;margin:0 0 26px;max-width:560px}
.hero-prog{color:#c9d1e0;font-size:14px;margin:14px 0 0}
.how,.need{margin-top:6px}
.how h2,.wrap>h2{font-size:24px;margin:34px 0 12px}
.how-list{counter-reset:h;list-style:none;padding:0;margin:0 0 14px;display:grid;gap:10px}
.how-list li{counter-increment:h;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px 14px 56px;position:relative}
.how-list li::before{content:counter(h);position:absolute;left:16px;top:14px;width:28px;height:28px;border-radius:50%;background:var(--ink);color:var(--gold);display:grid;place-items:center;font:700 14px/1 var(--sans)}
.need{padding-left:20px}
.need li{margin:4px 0}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;min-height:46px;padding:11px 20px;border-radius:999px;background:var(--ink);color:#fff;text-decoration:none;font:600 16px/1.2 var(--sans);border:0;cursor:pointer}
.btn:hover{background:var(--ink2)}
.btn-gold{background:var(--gold);color:var(--ink)}
.btn-gold:hover{background:#e5b45a}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{background:#efe9dd}
.btn.dis{color:#9aa0aa;cursor:not-allowed}
.btn:disabled{opacity:.7;cursor:wait}
.linkbtn{background:none;border:0;color:var(--teal);text-decoration:underline;cursor:pointer;font:inherit;padding:4px}

/* lesson content */
.lesson{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:6px 20px 14px}
.lesson h2{font-size:24px;margin:22px 0 10px}
.lesson h3{font-size:22px;margin:24px 0 8px}
.lesson h4{font-size:18.5px;margin:22px 0 6px}
.lesson p,.lesson li{max-width:68ch}
.lesson ul,.lesson ol{padding-left:22px}
.lesson li{margin:5px 0}
sup.fn a{text-decoration:none;font-size:.75em;font-weight:700;padding:0 2px}
.tbl{overflow-x:auto;margin:14px 0;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{text-align:left;vertical-align:top;padding:9px 10px;border-bottom:1px solid var(--line)}
th{background:#f4efe5;font-weight:700;color:var(--ink)}
.tip{background:#fbf6ea;border-left:4px solid var(--gold);border-radius:10px;padding:2px 16px;margin:16px 0}
.tip-h{font-weight:700;color:var(--ink);margin-top:12px}
.example{border-radius:10px;padding:10px 14px;margin:12px 0;font-size:15.5px}
.example p{margin:4px 0}
.example.bad{background:var(--red-bg);border-left:4px solid var(--red)}
.example.good{background:var(--teal-bg);border-left:4px solid var(--teal)}
.ex-h{font-weight:700;font-size:14px}
.prompt,.cp{border:1px solid #d8d0bf;border-radius:12px;overflow:hidden;margin:16px 0;background:var(--code)}
.prompt-h,.cp-h{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:8px 8px 8px 14px;background:#e9e2d3;font-size:13px;font-weight:700;color:var(--ink2);letter-spacing:.02em}
.prompt-b{padding:4px 14px 6px;font-size:15.5px}
.copy{flex:none;background:var(--ink);color:#fff;border:0;border-radius:999px;padding:8px 14px;min-height:36px;font:600 13px/1 var(--sans);cursor:pointer}
.copy.ok{background:var(--teal)}
.checklist{list-style:none;padding-left:0!important}
.checklist li::before{content:"";display:inline-block;width:14px;height:14px;border:2px solid var(--muted);border-radius:3px;margin-right:10px;vertical-align:-2px}
.source{font-size:14.5px;color:var(--ink2)}

/* task + check */
.task{margin:22px 0;background:#fffdf8;border:1px solid #e8d9b5;border-radius:var(--r);padding:4px 20px 12px}
.task h2,.check h2{font-size:22px;margin:18px 0 8px}
code{font:14px/1.4 var(--mono);background:var(--code);padding:2px 6px;border-radius:5px;word-break:break-word}
.check{background:var(--paper);border:2px solid var(--ink);border-radius:var(--r);padding:4px 20px 20px;margin:22px 0}
.check-how{padding-left:20px}
.check-how li{margin:6px 0}
.cid{font:600 12px/1 var(--mono);color:var(--muted);margin-left:6px;white-space:nowrap}
.cp-b{margin:0;padding:12px 14px;font:13px/1.5 var(--mono);white-space:pre-wrap;word-break:break-word;max-height:260px;overflow:auto;color:#2b2f38}
.lbl{display:block;font-weight:700;margin:18px 0 6px;color:var(--ink)}
textarea{width:100%;border:1.5px solid #cfc7b6;border-radius:12px;padding:12px;font:14px/1.45 var(--mono);background:#fffefa;color:var(--text);resize:vertical;min-height:150px}
.row{display:flex;gap:14px;align-items:center;margin-top:12px;flex-wrap:wrap}
.passed-b{background:var(--teal-bg);color:var(--teal);font-weight:600;padding:10px 14px;border-radius:10px}
.res{margin-top:18px;border-radius:12px;padding:6px 16px 14px}
.res-h{font:700 18px/1.3 var(--sans);margin:12px 0}
.res.pass{background:var(--teal-bg);border:1.5px solid #9cc7c1}
.res.pass .res-h{color:var(--teal)}
.res.fail{background:var(--red-bg);border:1.5px solid #e2b3ad}
.res.fail .res-h{color:var(--red)}
.issues{padding-left:22px;margin:0}
.issues li{margin:0 0 12px}
.iss{margin:0 0 4px;font-weight:600}
.fix{margin:0;background:#fff;border-radius:8px;padding:8px 10px;font-size:15.5px}
.notes{background:#fff;border-radius:10px;padding:2px 14px;margin-top:12px;font-size:15px}
.notes-h{font-weight:700;color:var(--ink2);margin:10px 0 4px}
.locked{background:var(--paper);border:1px dashed #c9c0ae;border-radius:var(--r);padding:16px 20px}
.lock-ic{display:inline-block;width:12px;height:12px;border-radius:3px;background:var(--muted);margin-right:8px}
.pn{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:8px}

/* choose */
.cards{display:grid;gap:12px;margin-top:18px}
.card{display:flex;flex-direction:column;gap:4px;text-align:left;background:var(--paper);border:1.5px solid var(--line);border-radius:var(--r);padding:16px 18px;cursor:pointer;font:inherit;color:var(--text)}
.card:hover{border-color:var(--gold2)}
.card.sel{border-color:var(--ink);box-shadow:0 0 0 2px var(--ink) inset}
.card-l{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--gold2)}
.card-t{font:700 19px/1.25 var(--serif);color:var(--ink)}
.card-d{color:var(--muted);font-size:15px}
.card-n{font-size:13px;color:var(--teal);font-weight:600}

.foot{border-top:1px solid var(--line);margin-top:30px}
.foot-in{max-width:1200px;margin:0 auto;padding:18px 20px 30px;font-size:14px}
.foot p{margin:4px 0}

@media (min-width:700px){ .cards{grid-template-columns:1fr 1fr} h1{font-size:34px} .hero h1{font-size:50px} }
@media (min-width:960px){
  .layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:8px;align-items:start}
  .side{position:sticky;top:64px;max-height:calc(100vh - 70px);overflow:auto;padding:18px 0 18px 16px}
  .steps summary{display:none}
  .hero{border-radius:var(--r);margin:18px 16px 0}
  .prog{width:220px}
}
@media (max-width:520px){
  .topbar-in{padding:9px 12px;gap:10px}
  .prog{width:84px}
  .prog-word{display:none}
  .prog-txt{font-size:11px}
  .check{padding:4px 14px 16px}
  .lesson,.task{padding-left:16px;padding-right:16px}
  .res{padding:4px 12px 12px}
  .issues{padding-left:18px}
  .cp-b{font-size:12.5px}
}
@media (max-width:380px){ .brand-txt small{display:none} body{font-size:16px} }

/* Stuck? box */
.stuck{margin:22px 0}
.stuck details{background:var(--paper);border:1.5px dashed var(--teal);border-radius:var(--r)}
.stuck summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;padding:14px 18px;color:var(--ink);font-size:16px}
.stuck summary::-webkit-details-marker{display:none}
.stuck summary::after{content:"+";margin-left:auto;font:600 22px/1 var(--sans);color:var(--teal)}
.stuck details[open] summary::after{content:"\2212"}
.stuck-ic{flex:none;display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--teal);color:#fff;font:700 16px/1 var(--sans)}
.stuck-b{padding:0 18px 18px}
.stuck-b textarea{min-height:96px}
.help{margin-top:16px;background:var(--teal-bg);border-radius:12px;padding:6px 16px 12px}
.help-h{font:700 17px/1.35 var(--sans);color:var(--ink);margin:12px 0 6px}
.help-n{font-weight:700;color:var(--teal);margin:12px 0 4px}
.help ol{padding-left:22px;margin:6px 0}
.help li{margin:6px 0}
.help.triage{background:#fffdf8;border:1px solid #e8d9b5}
.side-note{font-size:13.5px;color:var(--muted);padding:4px 10px 6px 34px;line-height:1.4}


/* ===== lesson format: slides -> video -> read more -> quiz -> do it ===== */
.sec-h{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:26px 0 10px}
.sec-h h2{display:flex;align-items:center;gap:10px;font-size:22px;margin:0}
.sec-ic{flex:none;width:28px;height:28px;border-radius:50%;background:var(--ink);color:var(--gold);display:grid;place-items:center;font:700 14px/1 var(--sans)}
.deck-n{font-size:13px;color:var(--muted);font-weight:600;white-space:nowrap}
.deck{margin-top:8px}
.deck-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none;border-radius:18px;overscroll-behavior-x:contain}
.deck-track::-webkit-scrollbar{display:none}
.slide{flex:0 0 100%;scroll-snap-align:start;scroll-snap-stop:always;background:linear-gradient(160deg,#14213d 0%,#22345c 100%);color:#fff;padding:22px 22px 26px;min-height:300px;box-sizing:border-box}
.slide-k{margin:0 0 6px;font:700 12px/1 var(--sans);letter-spacing:.08em;color:var(--gold)}
.slide h3{font:600 24px/1.25 var(--serif);margin:0 0 14px;color:#fff}
.slide ul{list-style:none;margin:0;padding:0}
.slide li{position:relative;padding-left:22px;margin:0 0 11px;font-size:17px;line-height:1.45;color:#e9edf5}
.slide li::before{content:"";position:absolute;left:2px;top:.55em;width:9px;height:9px;border-radius:50%;background:var(--gold)}
.deck-nav{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:10px}
.dbtn{width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:var(--paper);color:var(--ink);font-size:20px;cursor:pointer;flex:none}
.dbtn:disabled{opacity:.35;cursor:default}
.dots{display:flex;gap:4px;flex-wrap:wrap;justify-content:center}
.dot{width:24px;height:24px;border:0;background:transparent;padding:0;cursor:pointer;display:grid;place-items:center}
.dot::after{content:"";width:9px;height:9px;border-radius:50%;background:#cfc6b4;transition:all .2s}
.dot.on::after{background:var(--ink);width:20px;border-radius:6px}

.watch .vbox{border-radius:16px;overflow:hidden;background:#0d1526;aspect-ratio:16/9}
.watch video{display:block;width:100%;height:100%;background:#0d1526}
.vmeta{margin:8px 2px 0}
.vtitle{margin:0;font-weight:700;color:var(--ink)}
.vmeta .muted{margin:2px 0 0}
.vlist{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:8px}
.vlist button{width:100%;display:flex;align-items:center;gap:12px;text-align:left;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:10px 14px;font:15px/1.35 var(--sans);color:var(--text);cursor:pointer;min-height:46px}
.vlist button.on{border-color:var(--ink);box-shadow:inset 3px 0 0 var(--gold)}
.vnum{flex:none;width:24px;height:24px;border-radius:50%;background:var(--code);display:grid;place-items:center;font-weight:700;font-size:13px}
.vdur{margin-left:auto;color:var(--muted);font-size:13px}
.vsoon{display:flex;gap:16px;align-items:flex-start;background:var(--paper);border:1px dashed #c9c0ae;border-radius:16px;padding:18px 20px}
.vsoon p{margin:0 0 4px}
.vsoon-t{font-weight:700;color:var(--ink);font-size:18px}
.play-ic{flex:none;width:44px;height:44px;border-radius:50%;background:var(--ink);position:relative}
.play-ic::after{content:"";position:absolute;left:17px;top:13px;border-left:14px solid var(--gold);border-top:9px solid transparent;border-bottom:9px solid transparent}
.cp-q{margin-top:12px;background:#fffdf8;border:1.5px solid var(--gold);border-radius:14px;padding:6px 16px 14px}
.cp-k{font:700 12px/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--gold2);margin:12px 0 0}

.readmore{margin:22px 0 0;background:var(--paper);border:1px solid var(--line);border-radius:var(--r)}
.readmore>summary{cursor:pointer;padding:14px 18px;font-weight:700;color:var(--ink);list-style:none;display:flex;justify-content:space-between;align-items:center;min-height:48px}
.readmore>summary::-webkit-details-marker{display:none}
.readmore>summary::after{content:"+";font-size:22px;color:var(--gold2);line-height:1}
.readmore[open]>summary::after{content:"\2212"}
.readmore .lesson{padding:0 18px 12px;border-top:1px solid var(--line)}

.quiz-lede{margin:0 0 6px}
.qq{border:1px solid var(--line);background:var(--paper);border-radius:14px;margin:12px 0;padding:6px 16px 12px}
.qq legend{float:left;width:100%;padding:12px 0 8px;font-weight:700;color:var(--ink);line-height:1.4}
.opts{clear:both;display:grid;gap:8px}
.opt{text-align:left;width:100%;min-height:46px;padding:11px 14px;border-radius:11px;border:1.5px solid var(--line);background:#fff;font:16px/1.4 var(--sans);color:var(--text);cursor:pointer}
.opt:hover:not(:disabled){border-color:var(--ink2)}
.opt.right{border-color:#5fa69d;background:var(--teal-bg);color:#174e49;font-weight:600}
.opt.wrong{border-color:#d49a92;background:var(--red-bg)}
.opt:disabled:not(.right){opacity:.55;cursor:default}
.qfb{margin:10px 0 0;font-size:15px;line-height:1.45}
.qfb:empty{display:none}
.qfb.ok{color:#174e49}
.qfb.no{color:var(--red)}
.quiz-done{background:var(--teal-bg);color:var(--teal);font-weight:700;padding:12px 16px;border-radius:12px;margin:12px 0 0}
.qlock{margin-top:22px}
.qlock .btn{margin-top:4px}
.hands-h{margin-top:30px}

@media (min-width:700px){
  .slide{padding:30px 36px 34px;min-height:320px}
  .slide h3{font-size:28px}
  .slide li{font-size:18.5px}
}

/* walkthrough: one small action at a time */
.walk{margin-top:28px}
.walk-lede{margin:4px 0 12px}
.walk-list{list-style:none;padding:0;margin:0}
.walk-list li{margin:0 0 10px}
.w-done{display:flex;gap:10px;align-items:flex-start;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-size:15px;color:var(--muted)}
.w-done .w-txt{flex:1;min-width:0;overflow-wrap:anywhere}
.w-done code{font-size:13px}
.w-tick{flex:none;display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:var(--teal);color:#fff;font:700 13px/1 var(--sans);margin-top:2px}
.w-redo{flex:none;font-size:13px;white-space:nowrap}
.w-cur{background:var(--paper);border:2px solid var(--gold);border-radius:var(--r);padding:16px 18px;box-shadow:0 4px 18px rgba(20,33,61,.08)}
.w-cur:focus{outline:none}
.w-n{margin:0 0 4px;font:700 13px/1.3 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--gold2)}
.w-do{margin:0 0 12px;font-size:18px;line-height:1.5;color:var(--ink);overflow-wrap:anywhere}
.w-do code,.w-done code{display:inline-block;max-width:100%;white-space:normal;overflow-wrap:anywhere;margin-top:6px}
.w-see{background:var(--teal-bg);border-radius:12px;padding:10px 14px;margin:0 0 14px}
.w-see p{margin:4px 0}
.w-see-h{font-weight:700;color:var(--teal);font-size:14px;text-transform:uppercase;letter-spacing:.05em}
.w-see img{display:block;max-width:100%;height:auto;border-radius:8px;border:1px solid var(--line);margin:8px 0;background:#fff}
.w-row{flex-wrap:wrap;gap:10px}
.w-help ul{padding-left:20px;margin:6px 0}
.w-help li{margin:6px 0}
.w-src{margin:12px 0 0;font-size:12.5px;color:var(--muted);overflow-wrap:anywhere}
.w-more{font-size:14px;color:var(--muted);padding-left:6px}
.w-alt{margin:8px 0 14px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-size:15px}
.w-alt summary{cursor:pointer;font-weight:600;color:var(--ink2)}
.w-alt code{overflow-wrap:anywhere}
.step-done{margin-top:20px}
/* course home: time estimate */
.timebox{margin-top:28px}
.time-big{font:700 34px/1.2 var(--serif);color:var(--ink);margin:4px 0 6px}
.time-parts{padding-left:20px;margin:10px 0}
.time-parts li{margin:4px 0}

/* ===== Simple mode (Oct 23): start screen, one big Next, video first ===== */
.btn-book{flex:none;display:inline-flex;align-items:center;min-height:36px;padding:7px 14px;border-radius:999px;background:var(--gold);color:var(--ink);font:700 14px/1.1 var(--sans);text-decoration:none;white-space:nowrap}
.btn-book:hover{background:#e5b45a}
.topbar-in .brand{min-width:0}
.start{background:radial-gradient(900px 380px at 85% -10%,#25365c 0%,var(--ink) 62%);color:#fff;padding:34px 0 38px}
.start .kicker{margin:0 0 8px;color:#c9d1e0;font-size:14px}
.start .kicker a{color:var(--gold);text-decoration:none;font-weight:700}
.start h1{color:#fff;font-family:var(--serif);font-size:34px;line-height:1.1;margin:0 0 22px}
.start-h{display:inline-block;margin:0 0 12px;padding:4px 12px;border-radius:999px;background:rgba(217,164,65,.18);color:var(--gold);font-weight:800;letter-spacing:.06em;text-transform:uppercase;font-size:13px}
.start-list{list-style:none;padding:0;margin:0 0 26px;display:grid;gap:12px}
.start-list li{display:grid;gap:3px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:14px 16px;font-size:17px;line-height:1.4}
.sl-k{font-size:12.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--gold)}
.flow{font-weight:650}
.flow i{font-style:normal;color:var(--gold);padding:0 2px}
.btn-xl{width:100%;justify-content:center;min-height:62px;font-size:20px;font-weight:800;box-shadow:0 10px 24px rgba(0,0,0,.25)}
.start .hero-prog{color:#c9d1e0;text-align:center;margin:10px 0 0}
.start-help{margin:18px 0 0;text-align:center;color:#c9d1e0;font-size:15px}
.start-help a{color:#fff;font-weight:700}
.more-about{margin-top:18px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:0}
.more-about > summary{cursor:pointer;padding:16px 18px;font-weight:700;list-style:none}
.more-about > summary::-webkit-details-marker{display:none}
.more-about > summary::after{content:" +";color:var(--muted)}
.more-about[open] > summary::after{content:" \2212"}
.more-about > section{padding:0 18px 8px;margin:0;border:0;background:none;box-shadow:none}
.bookcard{margin-top:18px;margin-bottom:26px;background:var(--teal-bg);border:1px solid #cfe3df;border-radius:var(--r);padding:20px 18px}
.bookcard h2{margin:0 0 6px;font-size:21px}
.bookcard p{margin:0 0 14px}
.bookcard .row{display:flex;flex-wrap:wrap;gap:10px}
.stepbar{height:6px;border-radius:6px;background:var(--line);overflow:hidden;margin:4px 0 12px}
.stepbar span{display:block;height:100%;background:linear-gradient(90deg,var(--gold),#f0cf7f)}
.page .badge{display:none}
.pn{flex-direction:column;align-items:stretch;gap:10px;margin:22px 0 10px}
.btn-next{width:100%;justify-content:center;min-height:60px;font-size:20px;font-weight:800}
.btn-next.dis{background:#e8e3d8;color:#7a7f8a;cursor:not-allowed;flex-direction:column;gap:2px;font-size:18px}
.btn-next.dis small{font-size:13px;font-weight:600}
.pn .back{align-self:center;color:var(--muted);text-decoration:none;font-weight:600;padding:8px}
.watch{margin-top:6px}
.watch .vbox video{width:100%;border-radius:12px;background:#000;display:block;aspect-ratio:16/9}
.readmore{margin:18px 0}
@media (max-width:959px){ .layout{display:flex;flex-direction:column} .side{order:2;padding-bottom:12px} }
@media (max-width:520px){ .brand-txt small{display:none} .btn-book{padding:7px 11px;font-size:13px} .bb-long{display:none} .start h1{font-size:30px} }
@media (min-width:700px){ .start h1{font-size:46px} .btn-xl{width:auto;padding:0 44px} .start .hero-prog,.start-help{text-align:left} .pn{flex-direction:row-reverse;justify-content:space-between;align-items:center} .btn-next{width:auto;padding:0 40px} }

.more-about,.bookcard{margin-left:16px;margin-right:16px;width:auto}
@media (min-width:1100px){.more-about,.bookcard{margin-left:auto;margin-right:auto}}

/* ===== Rabin Advisory design language (Oct 23): same logo, colors, fonts, buttons, header and footer as rabinadvisory.com ===== */
:root{
  --ink:#16302b; --ink2:#2c4a43; --text:#16302b; --muted:#5d6f6a; --bg:#f7f4ee; --paper:#fffdf9; --line:#e2ddd2;
  --gold:#c9825b; --gold2:#a9643f; --teal:#2f6b5c; --teal-bg:#e3ece6; --sage:#8fb3a3; --sand:#efe7da; --code:#f3efe6;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  --r:18px;
}
body{color:var(--ink)}
a{color:var(--teal)}
:focus-visible,a:focus-visible,button:focus-visible,textarea:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:6px}
h1,h2,h3,h4{font-weight:500;letter-spacing:-.02em}
h1{font-weight:500}

/* header: the consulting site's frosted cream bar */
.topbar{background:rgba(247,244,238,.9);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);color:var(--ink);box-shadow:none;border-bottom:1px solid rgba(22,48,43,.07)}
.topbar-in{min-height:64px;padding:10px 22px}
.brand{color:var(--ink);gap:10px}
.mark{width:32px;height:32px;border-radius:10px;background:var(--ink);color:var(--sand);font:600 19px/1 var(--serif)}
.wm{font:650 18px/1.15 var(--sans);letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.wm em{font-style:normal;font-weight:500;color:var(--ink-2,#2c4a43)}
.brand-txt small{color:var(--muted)}
.prog-txt{color:var(--muted)}
.prog-pct{color:var(--ink)}
.prog-bar{background:var(--line)}
.prog-bar span,.stepbar span{background:linear-gradient(90deg,var(--ink),var(--sage))}

/* buttons: one style family, as on the consulting site */
.btn,.btn-gold{min-height:52px;padding:0 26px;border-radius:999px;background:var(--ink);color:#fff;font:600 17px/1.2 var(--sans);justify-content:center;box-shadow:0 6px 18px -8px rgba(22,48,43,.55);transition:transform .15s ease,background .15s ease}
.btn:hover,.btn-gold:hover{background:var(--ink2);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border:2px solid var(--ink);box-shadow:none}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-sm,.btn-book{min-height:40px;padding:0 16px;font:600 15px/1.1 var(--sans);box-shadow:none;background:var(--ink);color:#fff}
.btn-book:hover{background:var(--ink2)}
.btn-xl{min-height:62px;font-size:20px;font-weight:650;box-shadow:0 12px 26px -12px rgba(22,48,43,.6)}
.btn-next{min-height:60px;font-size:20px;font-weight:650}
.btn-next.dis{background:#e8e3d8;color:#6d7773;box-shadow:none;transform:none}
.copy{background:var(--ink)}
.linkbtn{color:var(--teal)}

/* start screen: the consulting site's hero */
.start{position:relative;overflow:hidden;background:var(--bg);color:var(--ink);padding:40px 0 44px}
.start::before{content:"";position:absolute;right:-150px;top:-110px;width:400px;height:400px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#cfe0d7 0%,#a9c6b8 38%,rgba(143,179,163,0) 70%);opacity:.7;pointer-events:none}
.start .wrap{position:relative}
.start .kicker{margin:0 0 10px;color:var(--gold);font-size:13px;letter-spacing:.14em;text-transform:uppercase;font-weight:650}
.start .kicker a{color:var(--gold);text-decoration:none;font-weight:650}
.start h1{color:var(--ink);font-family:var(--serif);font-weight:500;font-size:clamp(36px,9.5vw,58px);line-height:1.08;letter-spacing:-.02em;margin:0 0 22px}
.start-h{background:var(--sage-soft,#e3ece6);color:var(--ink);font-weight:700;letter-spacing:.1em;font-size:12.5px}
.start-list li{background:var(--paper);border:1px solid var(--line);color:var(--ink);border-radius:var(--r)}
.sl-k{color:var(--gold);font-weight:700}
.flow i{color:var(--gold)}
.start .hero-prog,.start-help{color:var(--muted)}
.start-help a{color:var(--ink)}
.cert-note{margin:14px 0 0;display:flex;align-items:center;justify-content:center;gap:10px;font-weight:600;color:var(--ink2);font-size:15.5px}
.cert-ic{flex:none;display:inline-block;width:26px;height:26px;border-radius:50%;background:var(--ink);box-shadow:0 0 0 3px var(--bg),0 0 0 5px var(--gold);position:relative}
.cert-ic::after{content:"R";position:absolute;inset:0;display:grid;place-items:center;font:italic 600 14px/1 var(--serif);color:var(--sand)}
.cert-ic.big{width:56px;height:56px}
.cert-ic.big::after{font-size:30px}

/* cards and panels */
.hero{background:radial-gradient(1000px 400px at 80% -10%,#2f5a50 0%,var(--ink) 60%)}
.badge{color:var(--sand)}
.how-list li::before,.sec-ic{background:var(--ink);color:var(--sand)}
.bookcard{background:var(--paper);border:1px solid var(--line);box-shadow:0 30px 60px -44px rgba(22,48,43,.45)}
.check{border-color:var(--ink)}
.task,.cp-q,.help.triage{background:#fffaf4;border-color:#ecd6c8}
.tip{background:#fbf3ec;border-left-color:var(--gold)}
.slide{background:linear-gradient(160deg,#16302b 0%,#2f5a50 100%)}
.slide li{color:#e6eee9}
.slide-k{color:#e7b597}
.slide li::before{background:var(--gold)}
.watch .vbox,.watch video{background:#0f201c}
.play-ic::after{border-left-color:var(--sand)}
.vlist button.on{box-shadow:inset 3px 0 0 var(--gold)}
.grp a.cur{background:var(--teal-bg)}
.w-cur{box-shadow:0 4px 18px rgba(22,48,43,.08)}

/* footer: the consulting site's pattern */
.foot{border-top:1px solid var(--line);margin-top:30px;color:var(--muted)}
.foot-in{padding:26px 22px 34px}
.foot-row{display:flex;flex-wrap:wrap;gap:12px 18px;justify-content:space-between;align-items:center;margin-bottom:10px}
.foot a{color:inherit}
.brand.small{text-decoration:none;color:var(--ink)}
.brand.small .mark{width:26px;height:26px;font-size:15px;border-radius:8px}
.brand.small .wm{font-size:15px}
.foot-links{font-size:14px}

/* done page + certificate */
.cert-cta{display:flex;gap:18px;align-items:flex-start;background:var(--paper);border:1px solid var(--line);border-radius:26px;padding:24px 22px;margin:22px 0;box-shadow:0 30px 60px -40px rgba(22,48,43,.45)}
.cert-cta h2{margin:2px 0 6px;font-size:26px}
.cert-cta p{margin:0 0 16px;color:var(--ink2)}
.cert-cta .btn-xl{width:100%}
.cert-form input{flex:1 1 220px;min-width:0;min-height:52px;border:1.5px solid #cfc7b6;border-radius:14px;padding:0 16px;font:18px/1.3 var(--sans);background:#fff;color:var(--ink)}
.cert-row{display:flex;flex-wrap:wrap;gap:12px}
.cert-row .btn{flex:1 1 auto}
.cert-fig{margin:24px 0 12px;padding:0}
.cert-fig img{display:block;width:100%;height:auto;border-radius:6px;box-shadow:0 22px 50px -26px rgba(22,48,43,.55);border:1px solid var(--line)}
.cert-actions .btn{flex:1 1 160px;white-space:nowrap}
@media (max-width:520px){ .cert-cta{flex-direction:column;gap:12px} }
#cert-print-sheet{display:none}
@media (min-width:700px){ .cert-cta .btn-xl{width:auto} }
@media (max-width:520px){ .topbar-in{padding:9px 14px} .wm{font-size:16px} .btn-book{padding:0 12px;font-size:13.5px;min-height:38px} }
@media (max-width:380px){ .wm em{display:none} }
main:focus,main:focus-visible{outline:none}
@page{size:letter landscape;margin:0}
/* ---------- accounts ---------- */
.acct{flex:none;display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 14px 0 6px;border-radius:999px;border:1.5px solid rgba(22,48,43,.22);color:var(--ink);text-decoration:none;font:600 15px/1.1 var(--sans);white-space:nowrap}
.acct:hover{background:#efe9dd}
.acct-ic{width:28px;height:28px;border-radius:50%;background:var(--sand);position:relative;flex:none}
.acct-ic::before{content:"";position:absolute;left:50%;top:6px;width:9px;height:9px;margin-left:-4.5px;border-radius:50%;background:var(--ink)}
.acct-ic::after{content:"";position:absolute;left:50%;bottom:5px;width:16px;height:7px;margin-left:-8px;border-radius:8px 8px 3px 3px;background:var(--ink)}
.acct.in .acct-ic{background:var(--sage)}
@media (max-width:520px){ .acct{padding:0;border:0;min-height:38px;width:38px;justify-content:center} .acct-t{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)} .acct-ic{width:34px;height:34px} .acct-ic::before{top:8px;width:10px;height:10px;margin-left:-5px} .acct-ic::after{bottom:7px} .topbar-in{gap:8px} }
.acct-line{margin:18px 0 0;font-size:15.5px;color:var(--ink2);text-align:center}
.acct-line p{margin:6px 0}
.acct-line a{font-weight:650}
.old-note{background:var(--teal-bg);border-radius:12px;padding:10px 14px;font-size:15px;color:var(--ink)}
.guestbar{margin:16px 0 4px;background:#fbf3e6;border:1px solid #ecd9bb;border-radius:12px;padding:10px 14px;font-size:14.5px;line-height:1.45;color:var(--ink)}
.guestbar a{font-weight:650}
.gate .gate-btns{display:flex;flex-direction:column;gap:12px;margin:22px 0 8px}
.gate .gate-btns .btn{width:100%}
.gate-guest{margin-top:18px;text-align:center}
.gate-guest .linkbtn{font-size:16px;font-weight:650;text-decoration:underline}
.gate-guest .muted{margin:6px 0 0}
.auth-form input{display:block;width:100%;min-height:52px;border:1.5px solid #cfc7b6;border-radius:14px;padding:0 16px;font:18px/1.3 var(--sans);background:#fff;color:var(--ink)}
.auth-form input:focus{border-color:var(--ink);outline:none;box-shadow:0 0 0 3px rgba(143,179,163,.45)}
.pw-row{position:relative}
.pw-row input{padding-right:72px}
.pw-row .linkbtn{position:absolute;right:10px;top:50%;transform:translateY(-50%);font-weight:650;font-size:15px;padding:8px}
.auth-form .btn-xl{width:100%;margin-top:22px}
.auth-alt{margin:20px 0 6px;text-align:center;font-size:16px}
.auth-alt a{font-weight:650}
.authpage .muted{text-align:center}
.form-err{margin:12px 0 0;background:var(--red-bg,#fbeeec);color:#8a2f25;border-radius:10px;padding:10px 14px;font-size:15px}
.soon{margin:22px 0;background:var(--paper);border:1.5px solid var(--line);border-radius:var(--r);padding:18px 20px}
.soon-tag{display:inline-block;margin:0 0 6px;background:var(--gold);color:#fff;border-radius:999px;padding:4px 12px;font:700 12.5px/1.3 var(--sans);letter-spacing:.08em;text-transform:uppercase}
.soon p{margin:6px 0}
.soon .row .btn{flex:1 1 140px}
.paywall .row .btn{flex:1 1 160px}
.acct-dl{margin:16px 0;padding:0;display:grid;gap:0;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.acct-dl>div{display:flex;justify-content:space-between;gap:16px;padding:12px 16px;border-top:1px solid var(--line)}
.acct-dl>div:first-child{border-top:0}
.acct-dl dt{color:var(--muted);font-size:15px}
.acct-dl dd{margin:0;text-align:right;font-weight:600;overflow-wrap:anywhere}
.pill{display:inline-block;padding:3px 10px;border-radius:999px;background:var(--sand);font-size:13.5px;font-weight:700;margin-right:4px}
.pill.ok{background:var(--teal-bg);color:var(--teal)}
.acct-prog,.acct-cert{margin:22px 0;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.acct-prog h2,.acct-cert h2{margin:0 0 8px;font-size:21px}
.big-n{margin:0 0 10px;font:600 40px/1 var(--serif);color:var(--ink)}
.big-n span{font:500 16px/1 var(--sans);color:var(--muted)}
.acct-prog .stepbar{margin:0 0 10px}
.acct-prog .btn{width:100%;margin-top:6px}
.v-card{margin:20px 0;border-radius:var(--r);padding:16px 18px;border:1.5px solid var(--line);background:var(--paper)}
.v-card.ok{border-color:var(--sage);background:#f3f8f5}
.v-card.bad{border-color:#e3b9b2;background:#fdf5f3}
.v-tag{margin:0 0 6px;font-weight:700;font-size:18px}
.v-card.ok .v-tag{color:var(--teal)}
.v-card .acct-dl{margin:8px 0 0}
@media (max-width:520px){ .prog{width:50px} .prog-pct{display:none} .prog-txt{justify-content:flex-start} .btn-book{padding:0 11px} }
@media print{
  body > *:not(#cert-print-sheet){display:none!important}
  #cert-print-sheet{display:block!important;margin:0;padding:0}
  #cert-print-sheet img{display:block;width:11in;height:8.5in;margin:0}
  body{background:#fff;margin:0}
}

/* ===== Rabin brand (Oct 23 2026): Cormorant headings, Inter body, Rabin palette, monogram ===== */
:root{--serif:var(--rb-serif);--sans:var(--rb-sans);--bg:#F6F1E7;--line:#E6DCCB;--sand:#F6F1E7;--paper:#fffdf8}
body{font-family:var(--rb-sans)}
h1,h2,h3,h4{font-family:var(--rb-serif);font-weight:600;letter-spacing:-.005em}
.topbar{background:rgba(246,241,231,.94);border-bottom:1px solid rgba(180,138,78,.4)}
.mark{background:none!important;border-radius:50%;overflow:visible;width:36px;height:36px}
.mark img{width:100%;height:100%;display:block}
.wm{font:600 21px/1.1 var(--rb-serif);letter-spacing:.005em}
.wm em{font-style:normal;font-weight:600;color:var(--ink2)}
.brand-txt small{font-family:var(--rb-sans)}
.foot-lockup{height:32px;width:auto;display:block}
.foot{margin-bottom:0}

:root{--gold:#B48A4E;--gold2:#7d5f33}
.brand-txt>.wm,.brand.small .wm{font:600 21px/1.1 var(--rb-serif);letter-spacing:.005em}
.acct-ic{background:#E6DCCB}
.kicker,.start .kicker,.start .kicker a,.slide-k,.sl-k,.start-h{color:var(--gold2)}
.prog-pct{color:var(--gold2)}
.tip{background:#f8f1e4}
@media (max-width:520px){.brand-txt>.wm{font-size:19px}}
@media (max-width:430px){.brand-txt>.wm{font-size:18px;letter-spacing:0}.topbar-in{gap:7px}.brand{gap:8px}.mark{width:32px;height:32px}}