/* ============================================================
   Quant Desk — public stylesheet
   Palette: research-notebook canvas, ink type, plotted data colours
   ============================================================ */

:root{
  --canvas:#FBFAF6;
  --paper:#FFFFFF;
  --ink:#12161B;
  --ink-2:#4E5967;
  --ink-3:#7C8794;
  --rule:#E3DFD4;
  --rule-strong:#CFC9BA;
  --signal:#1B44C8;      /* long / primary */
  --signal-soft:#ECF0FF;
  --risk:#BF4229;        /* drawdown / warnings */
  --risk-soft:#FBEDE9;
  --gain:#1D7A54;
  --grid:rgba(18,22,27,.055);
  --shell:1140px;
  --r:4px;
  --sans:"IBM Plex Sans",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --cond:"IBM Plex Sans Condensed","IBM Plex Sans",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--canvas);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--signal);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
hr{border:0;border-top:1px solid var(--rule);margin:0}

h1,h2,h3,h4{font-family:var(--cond);font-weight:600;letter-spacing:-.01em;line-height:1.12;margin:0 0 .5em}
h1{font-size:clamp(2.4rem,5.4vw,4rem)}
h2{font-size:clamp(1.8rem,3.6vw,2.6rem)}
h3{font-size:1.32rem;line-height:1.25}
h4{font-size:1.05rem}
p{margin:0 0 1.1em;max-width:72ch}
.lede{font-size:1.15rem;color:var(--ink-2);max-width:66ch}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}

.shell{max-width:var(--shell);margin:0 auto;padding:0 24px}
.section{padding:84px 0;border-top:1px solid var(--rule)}
.section--tight{padding:56px 0}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:38px}
.section-head p{margin:.4em 0 0;color:var(--ink-2)}
.eyebrow{font-family:var(--mono);font-size:.78rem;color:var(--signal);margin:0 0 .8em;letter-spacing:.02em}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;font:500 .96rem/1 var(--sans);
  padding:14px 22px;border-radius:var(--r);border:1px solid var(--signal);
  background:var(--signal);color:#fff;cursor:pointer;transition:background .15s,border-color .15s;
}
.btn:hover{background:#12329b;border-color:#12329b;text-decoration:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--rule-strong)}
.btn-ghost:hover{background:var(--paper);border-color:var(--ink);color:var(--ink)}
.btn-wa{background:#1FA855;border-color:#1FA855}
.btn-wa:hover{background:#17853F;border-color:#17853F}
.btn-sm{padding:9px 15px;font-size:.87rem}
.btn-block{width:100%;justify-content:center}

/* ---------- header ---------- */
.masthead{position:sticky;top:0;z-index:60;background:rgba(251,250,246,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.masthead .shell{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-family:var(--cond);font-weight:600;font-size:1.22rem;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand small{display:block;font-family:var(--mono);font-size:.6rem;color:var(--ink-3);font-weight:400;letter-spacing:.06em}
.nav{display:flex;gap:22px;margin-left:auto;align-items:center}
.nav a{color:var(--ink-2);font-size:.95rem}
.nav a.is-active{color:var(--ink);box-shadow:inset 0 -2px 0 var(--signal)}
.nav .btn{color:#fff}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--rule-strong);border-radius:var(--r);padding:9px 12px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);margin:3px 0}

/* ---------- hero ---------- */
.hero{
  position:relative;padding:76px 0 64px;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:28px 28px;background-position:-1px -1px;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero h1{margin-bottom:.35em}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 22px}
.hero-facts{display:flex;gap:30px;flex-wrap:wrap;border-top:1px solid var(--rule);padding-top:18px}
.hero-facts div{min-width:104px}
.hero-facts b{display:block;font-family:var(--mono);font-size:1.42rem;font-weight:500}
.hero-facts span{font-size:.82rem;color:var(--ink-3)}
.plot-card{background:var(--paper);border:1px solid var(--rule);border-radius:var(--r);padding:18px}
.plot-card figcaption{font-family:var(--mono);font-size:.74rem;color:var(--ink-3);margin-top:10px;line-height:1.5}

/* animated equity path draws once */
.draw-path{stroke-dasharray:1400;stroke-dashoffset:1400;animation:draw 2.6s cubic-bezier(.4,0,.2,1) forwards}
@keyframes draw{to{stroke-dashoffset:0}}
@media (prefers-reduced-motion:reduce){
  .draw-path{animation:none;stroke-dashoffset:0}
  html{scroll-behavior:auto}
}

/* ---------- cards & grids ---------- */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--paper);border:1px solid var(--rule);border-radius:var(--r);padding:26px}
.card h3{margin-bottom:.4em}
.card p{font-size:.96rem;color:var(--ink-2);margin-bottom:.8em}
.card--link{display:block;color:inherit}
.card--link:hover{border-color:var(--ink);text-decoration:none}
.card-icon{width:38px;height:38px;margin-bottom:16px;color:var(--signal)}
.card ul{margin:0;padding-left:18px;color:var(--ink-2);font-size:.92rem}
.card ul li{margin-bottom:.35em}
.card-foot{font-family:var(--mono);font-size:.78rem;color:var(--ink-3);margin-top:14px;padding-top:12px;border-top:1px solid var(--rule)}

/* stepped process — real sequence, so numbers are meaningful */
.steps{counter-reset:step;display:grid;gap:0}
.step{display:grid;grid-template-columns:78px 1fr;gap:24px;padding:26px 0;border-top:1px solid var(--rule)}
.step:last-child{border-bottom:1px solid var(--rule)}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-family:var(--mono);font-size:1.5rem;color:var(--signal);line-height:1;
}
.step h3{margin-bottom:.3em}
.step p{margin:0;color:var(--ink-2);font-size:.97rem}

/* ---------- tables ---------- */
.table{width:100%;border-collapse:collapse;font-size:.93rem;background:var(--paper)}
.table th,.table td{padding:11px 14px;border-bottom:1px solid var(--rule);text-align:left;vertical-align:top}
.table th{font-family:var(--mono);font-weight:500;font-size:.8rem;color:var(--ink-3);background:#F6F4EE}
.table td.n{font-family:var(--mono);text-align:right}
.table-wrap{border:1px solid var(--rule);border-radius:var(--r);overflow:auto}

/* ---------- regulatory / disclosure blocks ---------- */
.note{border-left:3px solid var(--risk);background:var(--risk-soft);padding:18px 22px;border-radius:0 var(--r) var(--r) 0}
.note p:last-child{margin-bottom:0}
.note h4{margin-bottom:.4em}
.note--info{border-left-color:var(--signal);background:var(--signal-soft)}
.badge{display:inline-block;font-family:var(--mono);font-size:.72rem;padding:3px 8px;border:1px solid var(--rule-strong);border-radius:99px;color:var(--ink-2);background:var(--paper)}
.badge--risk{color:var(--risk);border-color:#E7BFB4}

/* ---------- blog ---------- */
.post-card{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--rule);border-radius:var(--r);overflow:hidden;color:inherit}
.post-card:hover{border-color:var(--ink);text-decoration:none}
.post-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--rule)}
.post-card .body{padding:20px}
.post-meta{font-family:var(--mono);font-size:.76rem;color:var(--ink-3);display:flex;gap:12px;flex-wrap:wrap}
.article{max-width:none}
.article-body{font-size:1.05rem}
.article-body h2{margin-top:1.6em;font-size:1.7rem}
.article-body h3{margin-top:1.4em}
.article-body ul,.article-body ol{color:var(--ink-2);padding-left:22px}
.article-body li{margin-bottom:.4em}
.article-body blockquote{margin:1.4em 0;padding:4px 0 4px 20px;border-left:3px solid var(--signal);color:var(--ink-2);font-size:1.02rem}
.article-body code{font-family:var(--mono);font-size:.9em;background:#F1EEE6;padding:2px 5px;border-radius:3px}
.article-body pre{background:var(--ink);color:#EDEFF2;padding:18px;border-radius:var(--r);overflow:auto;font-family:var(--mono);font-size:.86rem}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body img{border:1px solid var(--rule);border-radius:var(--r);margin:1.4em 0}
.toc{background:var(--paper);border:1px solid var(--rule);border-radius:var(--r);padding:20px;font-size:.93rem}
.pagination{display:flex;gap:8px;margin-top:34px;flex-wrap:wrap}
.pagination a,.pagination span{font-family:var(--mono);font-size:.88rem;padding:8px 13px;border:1px solid var(--rule);border-radius:var(--r);background:var(--paper);color:var(--ink-2)}
.pagination .is-current{background:var(--signal);border-color:var(--signal);color:#fff}

/* ---------- forms ---------- */
.field{margin-bottom:18px}
.field label{display:block;font-size:.88rem;color:var(--ink-2);margin-bottom:6px}
.field .req{color:var(--risk)}
input[type=text],input[type=email],input[type=tel],input[type=password],input[type=number],input[type=date],input[type=url],select,textarea{
  width:100%;padding:12px 14px;font:400 .97rem/1.4 var(--sans);color:var(--ink);
  background:var(--paper);border:1px solid var(--rule-strong);border-radius:var(--r);
}
textarea{min-height:130px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--signal);outline:none;box-shadow:0 0 0 3px var(--signal-soft)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--ink-2)}
.check input{margin-top:4px}
.hp{position:absolute;left:-9999px;opacity:0}
.alert{padding:14px 18px;border-radius:var(--r);margin-bottom:20px;font-size:.94rem}
.alert-ok{background:#E9F5EF;border:1px solid #B6DCC9;color:#12603F}
.alert-err{background:var(--risk-soft);border:1px solid #E7BFB4;color:#8E2C17}

/* ---------- footer ---------- */
.footer{background:var(--ink);color:#C3CAD4;padding:64px 0 26px;font-size:.93rem}
.footer h4{color:#fff;font-size:.98rem;margin-bottom:14px}
.footer a{color:#C3CAD4}
.footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:38px}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{margin-bottom:9px}
.footer .brand{color:#fff}
.footer .brand small{color:#8894A3}
.social{display:flex;gap:10px;margin-top:16px}
.social a{width:38px;height:38px;border:1px solid #2C333D;border-radius:var(--r);display:grid;place-items:center;color:#C3CAD4}
.social a:hover{background:#1C222A;color:#fff;border-color:#414A56}
.social svg{width:18px;height:18px}
.footer-disclaimer{border-top:1px solid #262C34;margin-top:44px;padding-top:22px;font-size:.82rem;color:#8894A3;line-height:1.7}
.footer-disclaimer p{max-width:none}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:18px;font-size:.82rem;color:#8894A3}

/* ---------- floating chat ---------- */
.chat-dock{position:fixed;right:18px;bottom:18px;z-index:80;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.chat-btn{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 6px 18px rgba(18,22,27,.22)}
.chat-btn svg{width:27px;height:27px}
.chat-btn:hover{text-decoration:none;transform:translateY(-2px)}
.chat-wa{background:#25D366}
.chat-tg{background:#2AABEE}
.chat-note{background:var(--paper);border:1px solid var(--rule-strong);border-radius:var(--r);padding:10px 14px;font-size:.85rem;max-width:230px;box-shadow:0 6px 18px rgba(18,22,27,.12)}
.chat-note button{border:0;background:none;color:var(--ink-3);cursor:pointer;float:right;font-size:1rem;line-height:1}

/* ---------- misc ---------- */
.cta-band{background:var(--ink);color:#fff;border-radius:var(--r);padding:44px;display:flex;justify-content:space-between;gap:28px;align-items:center;flex-wrap:wrap}
.cta-band h2{color:#fff;margin:0}
.cta-band p{color:#B9C1CC;margin:.5em 0 0}
.cta-band .btn-ghost{color:#fff;border-color:#48505C}
.cta-band .btn-ghost:hover{background:#1C222A;color:#fff}
.kpi{background:var(--paper);border:1px solid var(--rule);border-radius:var(--r);padding:20px}
.kpi b{display:block;font-family:var(--mono);font-size:1.7rem;font-weight:500;line-height:1.1}
.kpi span{font-size:.85rem;color:var(--ink-3)}
.breadcrumb{font-family:var(--mono);font-size:.78rem;color:var(--ink-3);margin-bottom:18px}
.page-head{padding:56px 0 12px}
.center{text-align:center}
.mt0{margin-top:0}.mb0{margin-bottom:0}
.faq{border-top:1px solid var(--rule)}
.faq details{border-bottom:1px solid var(--rule);padding:16px 0}
.faq summary{cursor:pointer;font-family:var(--cond);font-size:1.12rem;font-weight:600;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--signal);font-family:var(--mono)}
.faq details[open] summary::after{content:"–"}
.faq p{margin:.7em 0 0;color:var(--ink-2);font-size:.97rem}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .g4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  body{font-size:16px}
  .section{padding:56px 0}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .nav{
    position:fixed;inset:68px 0 auto 0;background:var(--canvas);border-bottom:1px solid var(--rule);
    flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 20px;display:none;
  }
  .nav.is-open{display:flex}
  .nav a{padding:12px 0;border-bottom:1px solid var(--rule)}
  .nav .btn{margin-top:12px;justify-content:center}
  .nav-toggle{display:block}
  .cta-band{padding:28px}
  .step{grid-template-columns:56px 1fr;gap:14px}
  .footer-grid{grid-template-columns:1fr}
}