/* =====================================================================
   SULCO ADVISORY · design system
   Art direction: a research publisher, not a fintech landing page.
   Navy masthead and hero (the brand), paper ground, Source Serif 4 for
   headlines and figures, Source Sans 3 for reading. Imagery is
   cartographic: the archipelago and slow contour light, no stock photos.
   Layout: asymmetric 12-column editorial grid, generous whitespace,
   figures set large in serif, rust reserved for downside numbers.
   Contrast (WCAG): all text pairs >= 5.3:1 (AA); table in DEPLOY.md.
   ===================================================================== */
:root{
  color-scheme:light;
  /* colour roles */
  --navy:#0F2A44;        /* hero, masthead, headings */
  --paper:#F6F7F9;       /* page background */
  --surface:#FFFFFF;     /* cards, exhibits */
  --text:#1A2430;        /* body text 14.6:1 on paper */
  --muted:#566170;       /* secondary text 5.9:1 on paper */
  --accent:#1F5A96;      /* links, buttons 7.1:1 */
  --accent-ink:#FFFFFF;  /* text on accent */
  --on-dark:#FFFFFF;     /* text on navy */
  --on-dark-2:#B9C8DA;   /* secondary on navy 8.6:1 */
  --accent-dark:#8FB2DA; /* accent on navy 6.7:1 */
  --down:#A84B24;        /* downside figures only 5.3:1 */
  --rule:#D5DAE1;
  --tint:#E8EEF5;
  --heading:#0F2A44;
  /* type */
  --serif:'Source Serif 4', Georgia, 'Times New Roman', serif;
  --sans:'Source Sans 3', 'Helvetica Neue', Arial, sans-serif;
  --step--1:clamp(0.84rem,0.81rem + 0.14vw,0.92rem);
  --step-0:clamp(1rem,0.96rem + 0.2vw,1.1rem);
  --step-1:clamp(1.2rem,1.1rem + 0.45vw,1.45rem);
  --step-2:clamp(1.5rem,1.3rem + 0.9vw,2rem);
  --step-3:clamp(1.9rem,1.5rem + 1.8vw,2.9rem);
  --step-4:clamp(2.6rem,1.8rem + 4vw,5.6rem);
  /* space and shape */
  --s1:0.5rem; --s2:0.75rem; --s3:1rem; --s4:1.5rem; --s5:2rem; --s6:3rem; --s7:4.5rem; --s8:6.5rem;
  --radius:4px; --wrap:72rem;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font:400 var(--step-0)/1.6 var(--sans);text-rendering:optimizeLegibility}
img,svg,canvas{max-width:100%;display:block}
img{height:auto}
a{color:var(--accent);text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:2px}
.dark :focus-visible{outline-color:var(--accent-dark)}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.1;letter-spacing:-0.01em;text-wrap:balance;margin:0;color:var(--heading)}
p{margin:0}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-left:max(1rem, env(safe-area-inset-left, 0px));padding-right:max(1rem, env(safe-area-inset-right, 0px))}
.eyebrow{font:700 var(--step--1)/1.3 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.dark .eyebrow{color:var(--accent-dark)}
.skip{position:absolute;left:-999px;top:0;background:var(--surface);padding:.5rem 1rem;z-index:50}
.skip:focus{left:1rem}

/* ---------- masthead ---------- */
.masthead{position:relative;z-index:5;background:var(--navy);color:var(--on-dark);border-bottom:1px solid #1E3B58}
.masthead .wrap{display:flex;align-items:center;justify-content:space-between;gap:var(--s3);padding-block:var(--s3)}
.mark{display:inline-flex;align-items:center;gap:.6rem;color:#fff;text-decoration:none;font:700 .95rem/1 var(--sans);letter-spacing:.2em}
.mark::before{content:"";width:6px;height:1.35rem;background:#5A8FC7}
.mark:hover{color:#fff}
.nav{display:flex;align-items:center;gap:var(--s4)}
.nav a{color:var(--on-dark-2);text-decoration:none;font-size:var(--step--1);font-weight:600}
.nav a:hover{color:#fff}
.lang{display:inline-flex;border:1px solid #3B5878;border-radius:var(--radius);overflow:hidden}
.lang button{background:none;border:0;color:var(--on-dark-2);font:700 .78rem/1 var(--sans);letter-spacing:.08em;padding:.45rem .6rem;cursor:pointer;min-height:2rem}
.lang button[aria-pressed="true"]{background:#1F3D5C;color:#fff}
@media (max-width:719px){.nav .hide-sm{display:none}}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--navy);color:var(--on-dark);isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-2;background:
  radial-gradient(60% 80% at 78% 35%, #1D4570 0%, rgba(29,69,112,0) 70%),
  radial-gradient(50% 60% at 15% 90%, #143656 0%, rgba(20,54,86,0) 70%), var(--navy)}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-1;opacity:0;transition:opacity 1.2s var(--ease)}
.hero canvas.on{opacity:1}
.hero .wrap{display:grid;grid-template-columns:1fr;gap:var(--s5);padding-block:clamp(2.2rem,6vw,5.5rem) clamp(2.5rem,7vw,6rem)}
.hero h1{color:#fff;font-size:var(--step-4);line-height:.98;letter-spacing:-0.02em}
.hero h1 .line{display:block;overflow:hidden;padding-bottom:.06em}
.hero h1 .line > span{display:inline-block}
.hero .lede{color:var(--on-dark-2);font-size:var(--step-1);line-height:1.5;max-width:34em}
.hero .eyebrow{color:var(--accent-dark)}
.hero-map{color:#2E6CA8;opacity:.9;align-self:center}
.hero-map svg{width:100%;height:auto}
.actions{display:flex;flex-wrap:wrap;gap:var(--s2)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:2.9rem;padding:.7rem 1.25rem;border-radius:var(--radius);border:1.5px solid transparent;background:var(--accent);color:var(--accent-ink);font:700 var(--step-0)/1 var(--sans);text-decoration:none;cursor:pointer;transition:transform .2s var(--ease),opacity .2s}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn.ghost{background:transparent;color:var(--accent);border-color:currentColor}
.hero .btn{background:#fff;color:var(--navy)}
.hero .btn.ghost{background:transparent;color:#fff;border-color:#5A8FC7}
.latest{display:flex;flex-wrap:wrap;gap:.25rem 1rem;align-items:baseline;border-top:1px solid #2A4867;padding-top:var(--s3);font-size:var(--step--1);color:var(--on-dark-2)}
.latest b{color:#fff;font-weight:700}
.latest a{color:var(--accent-dark)}
@media (min-width:880px){
  .hero .wrap{grid-template-columns:7fr 5fr;align-items:center;column-gap:var(--s6)}
  .hero .latest{grid-column:1 / -1}
}

/* ---------- sections ---------- */
main section{padding-block:clamp(3rem,7vw,5.5rem);border-bottom:1px solid var(--rule)}
.sec-head{display:grid;gap:var(--s2);max-width:46rem;margin-bottom:var(--s5)}
.sec-head h2{font-size:var(--step-3)}
.sec-head p{color:var(--muted);font-size:var(--step-1);line-height:1.5}
.grid-12{display:grid;grid-template-columns:1fr;gap:var(--s5)}
@media (min-width:880px){.grid-12{grid-template-columns:repeat(12,minmax(0,1fr))}.span-7{grid-column:span 7}.span-5{grid-column:span 5}.span-6{grid-column:span 6}.span-4{grid-column:span 4}.span-8{grid-column:span 8}}

/* figures */
.figures{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule)}
.fig{background:var(--surface);padding:var(--s4) var(--s4) var(--s4);display:grid;gap:.35rem;align-content:start}
.fig b{font:600 var(--step-3)/1 var(--serif);color:var(--heading);font-variant-numeric:tabular-nums lining-nums;letter-spacing:-0.01em}
.fig.down b{color:var(--down)}
.fig span{color:var(--muted);font-size:var(--step--1);line-height:1.45}
@media (min-width:880px){.figures.four{grid-template-columns:repeat(4,minmax(0,1fr))}}

.card-link{display:block;text-decoration:none;color:inherit}
.cover-img{border:1px solid var(--rule);background:var(--navy);aspect-ratio:1200/630;width:100%;object-fit:cover}
.study-title{font-size:var(--step-2);margin-top:var(--s3)}
.meta{color:var(--muted);font-size:var(--step--1);margin-top:.35rem}

/* coverage */
.areas{display:grid;grid-template-columns:1fr;gap:var(--s4)}
@media (min-width:600px){.areas{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1000px){.areas{grid-template-columns:repeat(5,minmax(0,1fr))}}
.area{border-top:4px solid var(--c);padding-top:var(--s3);display:grid;gap:.4rem;align-content:start}
.area h3{font-size:var(--step-1)}
.area p{color:var(--muted);font-size:var(--step--1);line-height:1.5}
.peers{margin-top:var(--s5);font-size:var(--step--1);color:var(--muted)}

/* method */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr;gap:1px;background:var(--rule);border:1px solid var(--rule);counter-reset:s}
@media (min-width:600px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1000px){.steps{grid-template-columns:repeat(4,minmax(0,1fr))}}
.steps li{counter-increment:s;background:var(--surface);padding:var(--s4);display:grid;gap:.3rem;align-content:start}
.steps li::before{content:counter(s,decimal-leading-zero);font:600 var(--step-1)/1 var(--serif);color:var(--accent)}
.steps b{color:var(--heading);font-size:var(--step-0)}
.steps span{color:var(--muted);font-size:var(--step--1);line-height:1.5}

/* dates */
.dates{list-style:none;margin:0;padding:0;display:grid;gap:0;border-top:1px solid var(--rule)}
.dates li{display:grid;grid-template-columns:8.5rem 1fr;gap:var(--s3);padding-block:var(--s3);border-bottom:1px solid var(--rule);align-items:baseline}
.dates time{font:600 var(--step-0)/1.3 var(--serif);color:var(--heading);font-variant-numeric:tabular-nums}
.dates li.key time{color:var(--down)}
.dates p{color:var(--text)}
.dates small{display:block;color:var(--muted);font-size:var(--step--1)}
.cal{display:flex;flex-wrap:wrap;gap:var(--s2);margin-top:var(--s4)}

/* forms */
.form{display:grid;gap:var(--s3);max-width:40rem}
.row{display:grid;gap:var(--s3)}
@media (min-width:600px){.row.two{grid-template-columns:1fr 1fr}}
.field{display:grid;gap:.35rem}
.field label{font-weight:700;font-size:var(--step--1);color:var(--text)}
.field .hint{font-size:var(--step--1);color:var(--muted)}
input[type=email],input[type=text]{width:100%;min-height:2.9rem;font:400 var(--step-0)/1.2 var(--sans);padding:.65rem .8rem;border:1.5px solid var(--rule);border-radius:var(--radius);background:var(--surface);color:var(--text)}
input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent)}
input[aria-invalid="true"]{border-color:var(--down)}
.field .err{color:var(--down);font-size:var(--step--1);font-weight:600;min-height:1.2em}
.check{display:flex;gap:.6rem;align-items:flex-start;font-size:var(--step--1);color:var(--muted)}
.check input{width:1.1rem;height:1.1rem;margin-top:.2rem;accent-color:var(--accent)}
.status{font-size:var(--step--1);font-weight:600;min-height:1.4em}
.status.ok{color:var(--accent)} .status.bad{color:var(--down)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.btn[aria-busy="true"]{opacity:.7;cursor:progress}
.inline-form{display:flex;flex-wrap:wrap;gap:var(--s2);align-items:flex-end}
.inline-form .field{flex:1 1 16rem}

/* study page */
.study-hero .wrap{padding-block:clamp(2rem,5vw,4.5rem)}
.study-hero h1{font-size:clamp(2.1rem,1.4rem + 3.4vw,4.2rem);max-width:18ch}
.crumb{font-size:var(--step--1);color:var(--on-dark-2)} .crumb a{color:var(--accent-dark)}
.tags{display:flex;flex-wrap:wrap;gap:.5rem}
.tag{font:700 .72rem/1 var(--sans);letter-spacing:.1em;text-transform:uppercase;padding:.45rem .6rem;border:1px solid #3B5878;color:var(--on-dark-2);border-radius:2px}
.share{display:flex;flex-wrap:wrap;gap:var(--s2);margin-top:var(--s4)}
.share a,.share button{min-height:2.6rem;display:inline-flex;align-items:center;padding:.5rem .9rem;border:1.5px solid var(--rule);border-radius:var(--radius);background:var(--surface);color:var(--text);font:600 var(--step--1)/1 var(--sans);text-decoration:none;cursor:pointer}
.share a:hover,.share button:hover{border-color:var(--accent);color:var(--accent)}
.summary-img{width:100%;border:1px solid var(--rule);background:#fff;aspect-ratio:1800/6885}
.summary-frame{max-width:56rem}
.tbl-wrap{overflow-x:auto;border:1px solid var(--rule);background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:34rem;font-variant-numeric:tabular-nums}
th,td{text-align:right;padding:.7rem .9rem;border-bottom:1px solid var(--rule);font-size:var(--step--1)}
th:first-child,td:first-child{text-align:left}
thead th{font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:.75rem}
tr.base{background:var(--tint)}
td.neg{color:var(--down);font-weight:700}
.tbl-note{font-size:var(--step--1);color:var(--muted);margin-top:var(--s2)}

.gate{background:var(--surface);border:1px solid var(--rule);padding:clamp(1.25rem,4vw,2.5rem)}
.gate-done{display:none}
.unlocked .gate-form-wrap{display:none}
.unlocked .gate-done{display:block}
.viewer{display:none;margin-top:var(--s5)}
.unlocked .viewer{display:block}
.stage{position:relative;aspect-ratio:16/9;background:var(--navy);border:1px solid var(--rule);overflow:hidden;touch-action:pan-y}
.stage img{width:100%;height:100%;object-fit:contain}
.vbar{display:flex;align-items:center;justify-content:space-between;gap:var(--s2);margin-top:var(--s3)}
.count{font-variant-numeric:tabular-nums;color:var(--muted);font-size:var(--step--1)}
.thumbs{display:flex;gap:.5rem;overflow-x:auto;margin-top:var(--s3);padding-bottom:.4rem;scroll-snap-type:x proximity}
.thumbs button{flex:0 0 7.5rem;padding:0;border:2px solid transparent;background:var(--surface);cursor:pointer;scroll-snap-align:start;aspect-ratio:16/9}
.thumbs button[aria-current="true"]{border-color:var(--accent)}
.thumbs img{width:100%;height:100%;object-fit:cover}

/* sticky mobile CTA */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:20;padding:.6rem max(1rem, env(safe-area-inset-right, 0px)) calc(.6rem + env(safe-area-inset-bottom, 0px)) max(1rem, env(safe-area-inset-left, 0px));background:color-mix(in srgb,var(--navy) 96%,transparent);transform:translateY(110%);transition:transform .35s var(--ease);display:flex}
.sticky-cta .btn{flex:1;background:#fff;color:var(--navy)}
.sticky-cta.show{transform:translateY(0)}
@media (min-width:880px){.sticky-cta{display:none}}

/* footer */
.site-foot{background:var(--navy);color:var(--on-dark-2);font-size:var(--step--1)}
.site-foot .wrap{display:grid;gap:var(--s3);padding-block:var(--s6) calc(var(--s6) + 3.5rem)}
.site-foot a{color:var(--accent-dark)}
@media (min-width:880px){.site-foot .wrap{padding-bottom:var(--s6)}}

/* motion: resting state is visible; JS adds .pre only when GSAP is ready */
.reveal{will-change:transform,opacity}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .hero canvas{display:none}
}

/* =====================================================================
   v2 components: study page aligned to the one-page summary (A3)
   ===================================================================== */
:root{--navy-c:#0F2A44;--bar:#0F2A44;--bar-lt:#9DB0C6;--bar-gr:#9AA7B6;--down-tint:#FBEDE6;--acc-tint:#E8EEF5;--shadow:0 1px 2px rgba(15,42,68,.06),0 8px 24px rgba(15,42,68,.06)}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.tight{padding-block:clamp(2rem,4vw,3rem)!important}
.h3{font-size:var(--step-2)}

/* study hero */
.study-hero-grid{display:grid;gap:var(--s5)}
@media (min-width:980px){.study-hero .study-hero-grid{grid-template-columns:minmax(0,7fr) minmax(0,4.2fr);align-items:end;column-gap:var(--s6)}}
.hero-copy{display:grid;gap:1.1rem;align-content:start;min-width:0}
.byline{font-size:var(--step--1);color:var(--on-dark-2)}
.hero-study{background:rgba(255,255,255,.04);border:1px solid #2A4867;border-left:4px solid #C8693D;display:grid;min-width:0}
.hs-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid #2A4867}
.hs-body{padding:1rem 1.2rem 1.2rem;display:grid;gap:.7rem}
.hs-t{font:600 var(--step-1)/1.2 var(--serif);color:#fff}
.hs-list{list-style:none;margin:0;padding:0;display:grid;gap:.25rem;font-size:var(--step--1);color:var(--on-dark-2)}
.hs-list b{font:600 1.05rem/1 var(--serif);color:#fff;display:inline-block;min-width:1.8rem}
.hs-links{display:flex;flex-wrap:wrap;gap:.4rem 1rem;font-size:var(--step--1);font-weight:600}
.hs-links a{color:var(--accent-dark)}
.basis{border-top:1px solid #2A4867;padding-block:.8rem 1rem;font-size:.82rem;color:var(--on-dark-2);letter-spacing:.01em}
@media (max-width:979px){.hero-study .hs-cover{display:none}}

/* key numbers */
.keynums{background:var(--surface)}
.figures.kn{background:none;border:0;gap:var(--s3)}
.kn .fig{border:1px solid var(--rule);border-top:4px solid var(--navy-c);box-shadow:var(--shadow)}
.kn .fig.down{border-top-color:var(--down)}
.kn .fig b{font-size:clamp(2rem,1.5rem + 1.6vw,2.8rem)}
.steps-nav{display:flex;gap:.5rem;margin-top:var(--s4);overflow-x:auto;padding-bottom:.3rem;scrollbar-width:thin}
.steps-nav a{flex:0 0 auto;display:inline-flex;align-items:center;gap:.5rem;padding:.45rem .8rem .45rem .45rem;border:1px solid var(--rule);border-radius:999px;color:var(--text);text-decoration:none;font-weight:600;font-size:var(--step--1);background:var(--paper)}
.steps-nav a:hover{border-color:var(--accent);color:var(--accent)}
.steps-nav i,.step-k i{font-style:normal;display:inline-grid;place-items:center;width:1.6rem;height:1.6rem;border-radius:50%;background:var(--navy);color:#fff;font:700 .8rem/1 var(--sans)}

/* step sections */
.step{scroll-margin-top:1rem}
.step-head{display:grid;grid-template-columns:1fr auto;gap:.6rem 1rem;align-items:center;border-top:2px solid var(--navy-c);padding-top:var(--s3);margin-bottom:var(--s5)}
.step-head h2{grid-column:1/-1;font-size:var(--step-3);max-width:28ch}
.step-k{display:flex;align-items:center;gap:.7rem;font:700 var(--step--1)/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.step-p{grid-column:1/-1;color:var(--muted);max-width:60ch}
.slide-ref{font-size:var(--step--1);font-weight:700;color:var(--muted);text-decoration:none;white-space:nowrap;border:1px solid var(--rule);border-radius:999px;padding:.35rem .75rem;background:var(--surface)}
.slide-ref::after{content:" →"}
.slide-ref:hover{color:var(--accent);border-color:var(--accent)}
.take{margin-top:var(--s5);border-left:3px solid var(--navy-c);padding:.2rem 0 .2rem 1rem;font-size:var(--step-1);line-height:1.45;max-width:62ch;color:var(--text)}
.ch-title{font:700 var(--step--1)/1.35 var(--sans);color:var(--text);margin-bottom:var(--s3);letter-spacing:.01em}
.chart-fig{margin:0;min-width:0}
.chart-fig figcaption{font-size:var(--step--1);color:var(--muted);margin-top:.5rem}

/* IHSG svg */
svg.ihsg{width:100%;height:auto;overflow:visible}
.ihsg text{font-family:var(--sans);font-size:13px;fill:var(--muted)}
.ihsg .xa{text-anchor:middle}
.ihsg .gl{stroke:var(--rule);stroke-width:1}
.ihsg .ar{fill:var(--tint);opacity:.85}
.ihsg .ln{fill:none;stroke:var(--navy-c);stroke-width:2.2;stroke-linejoin:round}
.ihsg .ev{stroke:var(--down);stroke-width:1.3;stroke-dasharray:3 3}
.ihsg .evc{fill:var(--down)}
.ihsg .evt{fill:#fff;font-weight:700;text-anchor:middle;font-size:12px}
.ihsg .pt{fill:var(--navy-c)}
.ihsg .vl{fill:var(--text);font-weight:700}
@media (max-width:599px){.ihsg text{font-size:21px}.ihsg .evt{font-size:17px}.ihsg .evc{r:15}}
.events{list-style:none;margin:0;padding:0;display:grid;gap:var(--s3);align-content:start}
.events li{display:grid;gap:.15rem;border-top:1px solid var(--rule);padding-top:.6rem}
.events b{color:var(--down);font-weight:700;font-size:var(--step--1)}
.events span{font-size:var(--step--1);color:var(--text)}
@media (max-width:879px){.events{grid-template-columns:1fr 1fr}}

/* tiers + waterfall */
.tiers{display:grid;grid-template-columns:1fr auto 1fr;gap:.8rem;align-items:stretch;margin-bottom:var(--s5);max-width:52rem}
.tier{border:1.5px solid var(--accent);background:var(--acc-tint);padding:.8rem 1rem;display:grid;gap:.2rem}
.tier b{font-weight:700;color:var(--text)}
.tier span{font-size:var(--step--1);color:var(--muted)}
.tier.next{border-color:var(--down);background:var(--down-tint)}
.tier.next b{color:var(--down)}
.tier-arrow{align-self:center;color:var(--down);font-size:1.4rem}
@media (max-width:599px){.tiers{grid-template-columns:1fr}.tier-arrow{transform:rotate(90deg);justify-self:center}}
.wf{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));column-gap:.5rem;row-gap:.3rem;border-bottom:1px solid var(--text)}
.wf-brace{grid-column:1/3;grid-row:1;text-align:center;border-bottom:1.5px solid var(--down);font:700 .78rem/1.2 var(--sans);color:var(--down);padding-bottom:.3rem;margin-inline:12%;position:relative}
.wf-brace::before,.wf-brace::after{content:"";position:absolute;bottom:-6px;width:1.5px;height:6px;background:var(--down)}
.wf-brace::before{left:0}.wf-brace::after{right:0}
.wf-col{grid-row:2;display:grid;grid-template-rows:auto auto;min-width:0}
.wf-plot{position:relative;height:clamp(170px,22vw,240px);margin-top:1.6rem}
.wf-plot i{position:absolute;left:14%;right:14%;background:var(--bar)}
.wf-plot i.lt{background:var(--bar-lt)}
.wf-plot i.bl{background:var(--accent)}
.wf-plot i.dn{background:var(--down)}
.wf-plot em{position:absolute;left:0;right:0;text-align:center;font:700 .95rem/1 var(--sans);font-style:normal;transform:translateY(-.35rem);color:var(--text)}
.wf-plot em.dn,.wf-plot em.neg{color:var(--down)}
.wf-col>span{font-size:.78rem;color:var(--muted);text-align:center;padding:.5rem 0 .4rem;border-top:1px solid var(--text);line-height:1.2}

/* horizontal bars */
.hbars{display:grid;gap:.55rem}
.hb{display:grid;grid-template-columns:5.2rem minmax(0,1fr) auto;gap:.7rem;align-items:center;font-size:var(--step--1)}
.hb>span{color:var(--text)}
.hb.us>span,.hb.bank>span{font-weight:700}
.hb.us>span{color:var(--accent)}
.hb-t{display:flex;height:14px}
.hb-t i{display:block;height:100%;background:var(--bar)}
.hb-t i.lt{background:var(--bar-lt)}
.hb-t i.gr{background:var(--bar-gr)}
.hb-t i.dn{background:var(--down)}
.hb-t i.dnl{background:color-mix(in srgb,var(--down) 40%,var(--surface))}
.hb.us .hb-t i:first-child{background:var(--accent)}
.hb>b{font-weight:700;white-space:nowrap;font-variant-numeric:tabular-nums}
.hb>b small{font-weight:400;color:var(--muted);font-size:.86em}
.hbars.small .hb{grid-template-columns:3.6rem minmax(0,1fr) auto;gap:.6rem}
.hbars.small .hb-t{height:12px}
.hb.dn>span,.hb.dn>b{color:var(--down)}

/* stack */
.stack{display:grid;gap:.45rem}
.stk-l{display:flex;justify-content:space-between;font-weight:700;font-size:var(--step--1);margin-top:.5rem}
.stk-l b{font-variant-numeric:tabular-nums}
.stk{display:flex;height:40px}
.stk i{display:flex;align-items:center;height:100%;font-style:normal;overflow:hidden}
.stk i>span{color:#fff;font-size:.8rem;font-weight:700;padding-left:.6rem;white-space:nowrap}
.stk i.gap{border:1.5px dashed var(--down);background:var(--down-tint);justify-content:center}
.stk i.gap span{color:var(--down);padding:0}
.stk-k{display:flex;flex-wrap:wrap;gap:.3rem 1rem;font-size:.8rem;color:var(--muted)}
.stk-k>span{display:inline-flex;align-items:center;gap:.35rem}
.stk-k i{width:.75rem;height:.75rem;display:inline-block}
.c-navy{background:#0F2A44}.c-grey{background:#8E9BAB}.c-blue{background:#1F5A96}.c-blue-l{background:#8FB0D3}.c-teal{background:#1F7A80}.c-gold{background:#A6761D}

/* details: more */
.more{margin-top:var(--s5);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.more summary{cursor:pointer;list-style:none;padding:.9rem 0;font-weight:700;color:var(--accent);display:flex;justify-content:space-between;gap:1rem}
.more summary::-webkit-details-marker{display:none}
.more summary::after{content:"+";font:400 1.4rem/1 var(--sans)}
.more[open] summary::after{content:"−"}
.more-body{padding-bottom:var(--s4)}
.map-img{width:100%;background:var(--surface);border:1px solid var(--rule)}
.legend-list{display:grid;gap:.9rem;align-content:start}
.lg{display:grid;grid-template-columns:1rem 1fr;gap:.6rem;font-size:var(--step--1)}
.lg i{width:1rem;height:1rem;margin-top:.2rem}
.lg b{display:block}
.lg span{color:var(--muted)}
.formula{font-size:var(--step--1);border-top:1px solid var(--rule);padding-top:.7rem}

/* scenario explorer */
.explorer{display:grid;gap:var(--s4)}
@media (min-width:980px){.explorer{grid-template-columns:minmax(0,8fr) minmax(0,3.6fr);align-items:start}}
.dr{border-top:1px solid var(--text);min-width:0}
.dr-head,.dr-row{display:grid;grid-template-columns:minmax(8rem,11rem) minmax(0,1fr) 3.2rem 4.2rem 4.2rem;gap:.8rem;align-items:center}
.dr-head{font-size:.76rem;color:var(--muted);padding:.5rem 0;border-bottom:1px solid var(--rule);font-weight:600}
.dr-head>span:nth-child(n+3){text-align:right}
.dr-axis{position:relative;height:1em}
.dr-axis em{position:absolute;transform:translateX(-50%);font-style:normal}
.dr-row{width:100%;background:none;border:0;border-bottom:1px solid var(--rule);padding:.75rem 0;font:inherit;color:var(--text);text-align:left;cursor:pointer;transition:background .2s}
button.dr-row:hover{background:var(--tint)}
.dr-row[aria-selected="true"]{background:var(--tint)}
.dr-row[aria-selected="true"] .dr-n{font-weight:700}
.dr-row[aria-selected="true"] .dr-n::before{content:"";display:inline-block;width:4px;height:1em;background:var(--accent);margin-right:.5rem;vertical-align:-2px}
.dr-n{font-size:var(--step--1);padding-left:.4rem}
.dr-o{font-weight:700;text-align:right;font-variant-numeric:tabular-nums}
.dr-v,.dr-u{text-align:right;font-variant-numeric:tabular-nums;font-size:var(--step--1)}
.neg{color:var(--down);font-weight:700}
.dr-track{position:relative;height:30px}
.dr-now{position:absolute;top:-8px;bottom:-8px;border-left:1.5px dashed var(--muted)}
.dr-bar{position:absolute;top:50%;height:6px;transform:translateY(-50%);border-radius:3px;opacity:.45}
.dr-dot{position:absolute;top:50%;width:13px;height:13px;border-radius:50%;transform:translate(-50%,-50%)}
.dr-lab{position:absolute;top:50%;transform:translate(12px,-50%);font-size:.86rem;font-weight:700;white-space:nowrap}
.up{color:var(--accent)} .dr-bar.up,.dr-dot.up{background:var(--accent)}
.flat{color:var(--muted)} .dr-bar.flat,.dr-dot.flat{background:var(--muted)}
.dn{color:var(--down)} .dr-bar.dn,.dr-dot.dn{background:var(--down)}
.dr-dot.w{background:var(--navy-c)} .dr-lab.w{color:var(--text)}
.dr-w{cursor:default;border-bottom:1px solid var(--text)}
.dr-w .dr-n{font-weight:700}
.dr-note{font-size:.78rem;color:var(--muted);margin-top:.5rem}
@media (max-width:719px){
  .dr-head,.dr-row{grid-template-columns:minmax(0,1fr) 2.6rem 3.4rem 3.4rem;gap:.4rem .5rem}
  .dr-head>span:first-child{display:none}
  .dr-head .dr-axis{grid-column:1}
  .dr-n{grid-column:1/-1}
  .dr-track{grid-column:1}
  .dr-lab{font-size:.78rem}
}
.scen-panel{background:var(--surface);border:1px solid var(--rule);border-top:4px solid var(--accent);padding:1.1rem 1.2rem;display:grid;gap:.6rem;box-shadow:var(--shadow)}
.scen-name{font:600 var(--step-1)/1.2 var(--serif);color:var(--heading)}
.scen-what{color:var(--muted);font-size:var(--step--1)}
.scen-stats{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin:.3rem 0 0}
.scen-stats div{border-top:1px solid var(--rule);padding-top:.45rem}
.scen-stats dt{font-size:.74rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:700}
.scen-stats dd{margin:.15rem 0 0;font:600 1.25rem/1.1 var(--serif);font-variant-numeric:tabular-nums}

/* heat tables */
.heat-wrap{border:0;background:none}
table.heat{min-width:30rem;border-collapse:separate;border-spacing:3px}
.heat th,.heat td{border:0;padding:.55rem .6rem;font-size:var(--step--1)}
.heat thead th{text-align:center;text-transform:none;letter-spacing:0;font-size:.78rem;color:var(--muted)}
.heat tbody th{text-align:left;font-weight:600;white-space:nowrap}
.heat tbody th small{display:block;font-weight:400;color:var(--muted);font-size:.74rem}
.heat td{text-align:center;white-space:nowrap;font-variant-numeric:tabular-nums;transition:box-shadow .2s}
.heat td span{font-size:.84em;opacity:.9}
.heat tr.sa th{font-weight:800}
.heat .p3{background:#1F5A96;color:#fff}.heat .p2{background:#3A6FA5;color:#fff}.heat .p1{background:#C7D7EA;color:#14263A}
.heat .z{background:var(--surface);color:var(--text);box-shadow:inset 0 0 0 1px var(--rule)}
.heat .n1{background:#F6E3D9;color:#5A2A14}.heat .n2{background:#EDC0A6;color:#4A220F}.heat .n3{background:#DE946C;color:#2E1407}.heat .n4{background:#B4532A;color:#fff}
.fx-heat[data-col="0"] [data-c="0"],.fx-heat[data-col="1"] [data-c="1"],.fx-heat[data-col="2"] [data-c="2"],.fx-heat[data-col="3"] [data-c="3"],.fx-heat[data-col="4"] [data-c="4"]{box-shadow:inset 0 0 0 2.5px var(--text)}
.fx-heat[data-col="0"] th[data-c="0"],.fx-heat[data-col="1"] th[data-c="1"],.fx-heat[data-col="2"] th[data-c="2"],.fx-heat[data-col="3"] th[data-c="3"],.fx-heat[data-col="4"] th[data-c="4"]{box-shadow:none;color:var(--text);font-weight:800}
.fxbox{min-width:0}
.fx-head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;font-size:var(--step--1);font-weight:600}
.fx-head output{font:600 var(--step-1)/1 var(--serif);color:var(--heading)}
.fxbox input[type=range]{width:100%;accent-color:var(--accent);margin:.6rem 0 .8rem;min-height:2rem}
.fx-read{font-size:var(--step--1);color:var(--text);margin-top:.6rem;min-height:1.5em}
.fx-read b{color:var(--down)}

/* watch */
.dates li{grid-template-columns:10.5rem 1fr}
@media (max-width:599px){.dates li{grid-template-columns:1fr;gap:.1rem}}
.btn.sm{min-height:2.5rem;padding:.5rem .9rem;font-size:var(--step--1)}
.odds{display:grid;grid-template-columns:1fr 1fr;gap:.6rem;margin-top:var(--s4)}
.odds>div{padding:.8rem 1rem;display:grid;gap:.2rem;font-size:var(--step--1);background:var(--acc-tint)}
.odds b{color:var(--accent)}
.odds .bad{background:var(--down-tint)}
.odds .bad b{color:var(--down)}
@media (max-width:479px){.odds{grid-template-columns:1fr}}

/* share */
.share-box{display:grid;gap:var(--s4);background:var(--surface);border:1px solid var(--rule);padding:clamp(1rem,3vw,1.75rem);box-shadow:var(--shadow)}
@media (min-width:880px){.share-box{grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:center}}
.sb-thumb img{width:100%;border:1px solid var(--rule)}
.sb-body{display:grid;gap:.5rem}
.share a.pri{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}

/* gate */
.gate{box-shadow:var(--shadow);border-top:4px solid var(--navy-c)}
.gate-grid{display:grid;gap:var(--s5)}
@media (min-width:880px){.gate-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start}}
.gate-intro{display:grid;gap:.8rem}
.gate-intro h2{font-size:var(--step-3)}
.gate-intro p{color:var(--muted)}
.unlocked .gate-grid{grid-template-columns:1fr}
.toc-mini{list-style:none;margin:.4rem 0 0;padding:0;border-top:1px solid var(--rule);font-size:var(--step--1)}
.toc-mini li{display:grid;grid-template-columns:3.6rem 1fr;gap:.5rem;padding:.45rem 0;border-bottom:1px solid var(--rule)}
.toc-mini li span:first-child{color:var(--muted);font-variant-numeric:tabular-nums;font-weight:700}
.unlocked .toc-mini{display:none}
.opt summary{cursor:pointer;color:var(--accent);font-weight:600;font-size:var(--step--1);padding:.2rem 0}
.opt[open] summary{margin-bottom:.8rem}
.btn.wide{width:100%}
.consent{font-size:.8rem;color:var(--muted)}
.vbar #v-full{margin-left:auto}
.vbar .count{flex:1;text-align:center}
@media (max-width:599px){.vbar{flex-wrap:wrap}.vbar #v-full{order:4;width:100%}}
.stage-btn{all:unset;display:block;width:100%;height:100%;cursor:zoom-in}
.stage-btn:focus-visible{outline:3px solid var(--accent);outline-offset:-3px}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:80;background:#08111C;display:grid;grid-template-rows:auto 1fr;color:#fff}
.lightbox[hidden]{display:none}
.lb-top{display:flex;align-items:center;gap:.6rem;padding:calc(.6rem + env(safe-area-inset-top,0px)) max(1rem,env(safe-area-inset-right,0px)) .6rem max(1rem,env(safe-area-inset-left,0px))}
.lb-top #lb-count{flex:1;font-size:.9rem;color:#B9C8DA}
.lb-btn{background:#1F3D5C;color:#fff;border:0;border-radius:4px;padding:.55rem .9rem;font:700 .9rem/1 var(--sans);cursor:pointer;min-height:2.6rem}
.lb-scroll{overflow:auto;display:flex;align-items:center;justify-content:center;touch-action:pan-x pan-y pinch-zoom}
.lb-scroll img{max-width:100%;max-height:100%;width:auto;height:auto}
.lightbox.zoom .lb-scroll{display:block}
.lightbox.zoom .lb-scroll img{max-width:none;max-height:none;width:240%}
@media (min-width:900px){.lightbox.zoom .lb-scroll img{width:170%}}
.lb-nav button{position:fixed;top:50%;transform:translateY(-50%);width:3rem;height:4rem;border:0;background:rgba(31,61,92,.85);color:#fff;font-size:2rem;cursor:pointer}
#lb-prev{left:max(.5rem,env(safe-area-inset-left,0px))}#lb-next{right:max(.5rem,env(safe-area-inset-right,0px))}
.lightbox.zoom .lb-nav{display:none}

/* notes, glossary, disclosure */
.notes-grid{list-style:none;margin:0;padding:0;display:grid;gap:var(--s4);counter-reset:nb}
@media (min-width:700px){.notes-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1100px){.notes-grid{grid-template-columns:repeat(3,1fr)}}
.notes-grid li{counter-increment:nb;border-top:1px solid var(--rule);padding-top:.8rem;display:grid;gap:.35rem;align-content:start}
.notes-grid b::before{content:counter(nb) ". ";color:var(--accent)}
.notes-grid p{font-size:var(--step--1);color:var(--muted);line-height:1.55}
.gloss-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:.6rem 1.5rem;margin:0 0 var(--s4)}
.gloss-list div{display:grid;grid-template-columns:7.5rem 1fr;gap:.5rem;font-size:var(--step--1)}
.gloss-list dt{font-weight:700}.gloss-list dd{margin:0;color:var(--muted)}
.disclosure{font-size:.82rem;color:var(--muted);line-height:1.6}
.disclosure b{color:var(--text)}

/* page hero + docs */
.page-hero .wrap{padding-block:clamp(2rem,5vw,3.6rem)}
.page-hero h1{font-size:var(--step-3);max-width:22ch}
.page-hero .lede{font-size:var(--step-0)}
.doc-grid{display:grid;gap:var(--s5)}
@media (min-width:980px){.doc-grid{grid-template-columns:14rem minmax(0,1fr);gap:var(--s6)}}
.doc-toc{align-self:start;display:grid;gap:.6rem;font-size:var(--step--1)}
@media (min-width:980px){.doc-toc{position:sticky;top:1.5rem}}
.doc-toc ol{margin:0;padding-left:1.1rem;display:grid;gap:.35rem}
.doc-toc a{color:var(--text);text-decoration:none}.doc-toc a:hover{color:var(--accent)}
.doc-side{display:grid;gap:.3rem;border-top:1px solid var(--rule);padding-top:.7rem;margin-top:.4rem}
.doc-side a{color:var(--accent)}
.prose{max-width:44rem;display:grid;gap:1rem;min-width:0}
.prose h2{font-size:var(--step-2);margin-top:1.4rem;scroll-margin-top:1rem}
.prose h2:first-child{margin-top:0}
.prose p,.prose li{line-height:1.65}
.prose ul,.prose ol:not(.steps){margin:0;padding-left:1.2rem;display:grid;gap:.4rem}
.prose .tbl-wrap table{min-width:36rem}
.prose td,.prose th{text-align:left}
.prose td:not(:first-child){font-variant-numeric:tabular-nums}
.about-steps{grid-template-columns:1fr!important}
.about-steps li::before{font-size:var(--step-0)}
.copyable{font-weight:700;user-select:all}
.copy-btn{border:1px solid currentColor;background:none;color:inherit;border-radius:3px;padding:.15rem .5rem;font:600 .78rem/1.4 var(--sans);cursor:pointer;margin-left:.3rem}
.src-slide{border-top:1px solid var(--rule);padding-block:1rem}
.src-slide h3{font:700 var(--step-0)/1.35 var(--sans)}
.src-n{display:inline-block;min-width:4.6rem;color:var(--accent)}
.src-slide ol{margin:.5rem 0 0;padding-left:1.4rem;font-size:var(--step--1);display:grid;gap:.25rem;word-break:break-word}
.prose-wide{max-width:56rem}

/* home + library */
.study-card{display:grid;gap:var(--s4);background:var(--surface);border:1px solid var(--rule);padding:clamp(1rem,2.5vw,1.5rem);box-shadow:var(--shadow);border-top:4px solid var(--c);min-width:0}
@media (min-width:880px){#latest .study-card{grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:start}}
.study-body{display:grid;gap:.5rem;min-width:0}
.study-body .eyebrow{color:var(--muted)}
.study-title{margin-top:0}.study-title a{color:var(--heading);text-decoration:none}.study-title a:hover{color:var(--accent)}
.study-card .figures{margin-top:.6rem}
.study-card .fig{padding:.9rem}
.study-card .fig b{font-size:var(--step-2)}
.arrow{font-weight:700;text-decoration:none}.arrow::after{content:" →"}
.library{display:grid;gap:var(--s4)}
@media (min-width:880px){.library{grid-template-columns:1fr 1fr}}
.proof{display:grid;gap:1px;background:var(--rule);border:1px solid var(--rule)}
@media (min-width:600px){.proof{grid-template-columns:1fr 1fr}}
@media (min-width:1000px){.proof{grid-template-columns:repeat(4,1fr)}}
.proof-item{background:var(--surface);padding:var(--s4);display:grid;gap:.3rem}
.proof-item b{font:600 var(--step-1)/1.2 var(--serif);color:var(--heading)}
.proof-item span{color:var(--muted);font-size:var(--step--1)}
.foot-grid{grid-template-columns:1fr}
@media (min-width:880px){.foot-grid{grid-template-columns:1.2fr 1fr 1.2fr}.foot-legal{grid-column:1/-1}}
.foot-brand{display:grid;gap:.6rem}
.foot-nav{display:flex;flex-wrap:wrap;gap:.5rem 1.2rem}
.foot-legal{font-size:.78rem;line-height:1.6;max-width:80ch}
.site-foot .copyable{color:#fff}
.grid-12{grid-template-columns:minmax(0,1fr)}
@media (min-width:880px){.grid-12{grid-template-columns:repeat(12,minmax(0,1fr))}}
.grid-12>*{min-width:0}
.study-hero h1{max-width:none;font-size:clamp(2.2rem,1.3rem + 3.2vw,4.1rem)}
.study-hero .study-hero-grid{padding-block:clamp(2rem,5vw,4rem) clamp(1.5rem,3vw,2.5rem)}
.hero .wrap.basis-wrap{display:block;padding-block:0}
.sec-head .eyebrow{font-size:var(--step--1);color:var(--accent);line-height:1.3}
.dr-lab{top:0;transform:translate(-50%,-78%);font-size:.78rem}
.dr-track{margin-top:.6rem}
main section.step{padding-block:clamp(2.25rem,5vw,4rem)}
.keynums{border-bottom:0!important}
.kn .fig b{white-space:nowrap}
@media (max-width:599px){
  .kn .fig{padding:1rem .9rem}
  .kn .fig b{font-size:clamp(1.45rem,6.6vw,1.9rem)}
  .dr-head .dr-axis{visibility:hidden}
  table.heat{min-width:0;width:100%;border-spacing:2px}
  .heat th,.heat td{padding:.45rem .2rem;font-size:.74rem}
  .heat td span{display:block;font-size:.68rem}
  .heat tbody th{white-space:normal;line-height:1.2;width:4.6rem}
  .heat thead th{font-size:.68rem}
  .step-head{grid-template-columns:1fr}
  .slide-ref{justify-self:start}
}
.lightbox{grid-template-rows:auto minmax(0,1fr) auto}
.lb-nav{display:flex;justify-content:center;align-items:center;gap:1rem;padding:.6rem 1rem calc(.8rem + env(safe-area-inset-bottom,0px))}
.lb-nav button{position:static;transform:none;width:4rem;height:3rem;border-radius:4px}
.lb-hint{display:none;color:#B9C8DA;font-size:.85rem;text-align:center}
@media (orientation:portrait) and (max-width:700px){.lb-hint{display:block}}
.lightbox.zoom .lb-nav{display:flex}
.page-hero .wrap{grid-template-columns:minmax(0,1fr)!important}
.prose td:not(:first-child){white-space:nowrap}
.prose .tbl-wrap{max-width:100%}

.heat .n4 span,.heat .p3 span,.heat .p2 span{opacity:1}
.faq{display:grid;gap:0;max-width:52rem;border-top:1px solid var(--rule)}
.faq-q{border-bottom:1px solid var(--rule)}
.faq-q summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1rem 0}
.faq-q summary::-webkit-details-marker{display:none}
.faq-q summary::after{content:"+";font:400 1.5rem/1 var(--sans);color:var(--accent)}
.faq-q[open] summary::after{content:"−"}
.faq-q h3{font:600 var(--step-1)/1.3 var(--serif);color:var(--heading)}
.faq-q p{padding:0 0 1.1rem;color:var(--text);max-width:68ch;line-height:1.6}
/* probability basis */
.basis .more-body p{color:var(--text);margin:0 0 .75rem;max-width:68ch;line-height:1.55}
.basis .more-body p b{color:var(--navy)}
.basis .more-body a{color:var(--accent)}
.basis .tbl-wrap{margin:0 0 .9rem}
.basis-t{width:100%;border-collapse:collapse;font-size:.92rem;color:var(--text)}
.basis-t th,.basis-t td{text-align:left;vertical-align:top;padding:.55rem .6rem;border-bottom:1px solid var(--rule)}
.basis-t th{color:var(--navy);font-weight:700;border-bottom:2px solid var(--navy)}
.basis-t td:first-child{font-weight:600;color:var(--navy);min-width:8.5rem}
.basis-t td:nth-child(2){font-weight:700;white-space:nowrap}
.basis-t{min-width:0}
@media (max-width:600px){.basis-t td:first-child{min-width:0;width:28%}.basis-t th,.basis-t td{padding:.5rem .4rem}}