/* Yan Financial — topic pages. Shares the homepage's palette, type and motion. */
:root{--ink:#04080D;--ink2:#070C12;--ivory:#F4F1EA;--paper:#EFEBE3;--gold:#C9A86A;--mute:#C9CED4;--dim:#9AA0A8;--line:rgba(244,241,234,.14)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ink);color:var(--ivory);font-family:"Public Sans","Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--ivory);text-decoration:none}
em{font-style:italic}
.serif{font-family:"Source Serif 4",Georgia,serif;font-weight:300}
.gold{color:var(--gold)}
.eyebrow{font-size:11px;font-weight:500;letter-spacing:.38em}
.wrap{max-width:1240px;margin:0 auto;padding-left:clamp(16px,4vw,48px);padding-right:clamp(16px,4vw,48px)}

/* header */
.bar{position:fixed;top:0;left:0;right:0;z-index:10;border-bottom:1px solid rgba(244,241,234,.12);transition:background-color .7s ease,border-color .7s ease}
.bar.solid{background:rgba(4,8,13,.92);border-color:rgba(244,241,234,.07)}
@media (hover:hover){.bar.solid{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:rgba(4,8,13,.86)}}
.bar-in{height:80px;max-width:1440px;margin:0 auto;padding:0 clamp(16px,4vw,56px);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}
.navbtn{display:inline-flex;align-items:center;gap:14px;min-height:44px;padding:0;background:none;border:0;color:var(--ivory);font:500 11px "Public Sans","Helvetica Neue",Arial,sans-serif;letter-spacing:.28em;cursor:pointer}
.brand{display:flex;flex-direction:column;align-items:center;gap:4px}
.brand img{height:40px;width:auto;display:block}
.brand span{font-size:8px;font-weight:500;letter-spacing:.5em;padding-left:.5em}
.bar-r{display:flex;justify-content:flex-end;align-items:center;gap:32px}
.bar-r .link{font-size:11px;font-weight:500;letter-spacing:.26em}
.pill{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 38px;border-radius:999px;font-size:12px;font-weight:500;letter-spacing:.2em;cursor:pointer;transition:background-color .45s ease,color .45s ease}
.pill-light{background:var(--ivory);color:#0A121B}.pill-light:hover{background:#E6DFD1}
.pill-line{border:1px solid rgba(244,241,234,.6);color:var(--ivory)}.pill-line:hover{background:rgba(244,241,234,.12)}
.bar-r .pill{min-height:44px;padding:0 22px;font-size:11px;letter-spacing:.24em}

/* menu */
.menu{position:fixed;inset:0;z-index:20;background:var(--ink);display:flex;flex-direction:column;opacity:0;visibility:hidden;transition:opacity .5s ease,visibility .5s}
.menu.open{opacity:1;visibility:visible}
.menu-top{height:80px;padding:0 clamp(16px,4vw,56px);display:grid;grid-template-columns:1fr auto 1fr;align-items:center}
.menu-body{flex:1;display:flex;flex-wrap:wrap;gap:64px;align-items:center;max-width:1240px;width:100%;margin:0 auto;padding:24px clamp(16px,4vw,56px) 64px}
.menu nav{flex:1 1 420px;display:flex;flex-direction:column;gap:6px}
.menu nav a{padding:6px 0;font-family:"Source Serif 4",Georgia,serif;font-weight:300;font-size:clamp(34px,4.4vw,64px);line-height:1.08;transition:color .4s ease}
.menu nav a:hover,.menu nav a[aria-current]{color:var(--gold)}
.menu nav .sub{font-size:clamp(22px,2.2vw,30px);padding-left:4px;color:var(--mute)}
.menu address{flex:0 1 300px;display:flex;flex-direction:column;gap:10px;font-style:normal;font-size:14px;font-weight:300;line-height:1.7;color:var(--dim)}

/* hero */
.hero{position:relative;min-height:78vh;min-height:78svh;display:flex;align-items:flex-end;overflow:hidden;background:#0A1622}
.film{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
@media (hover:hover) and (prefers-reduced-motion:no-preference){.film{animation:drift 32s ease-in-out infinite alternate}}
@keyframes drift{from{transform:scale(1)}to{transform:scale(1.07)}}
.hero .scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,8,13,.55) 0%,rgba(4,8,13,.25) 40%,rgba(4,8,13,.9) 100%)}
.hero-in{position:relative;z-index:1;width:100%;padding-top:140px;padding-bottom:clamp(56px,8vw,96px)}
.crumb{display:flex;gap:12px;align-items:center;font-size:11px;font-weight:500;letter-spacing:.3em;color:var(--mute)}
.crumb a:hover{color:var(--ivory)}
.hero h1{margin:26px 0 0;max-width:980px;font-size:clamp(44px,6vw,96px);line-height:1;letter-spacing:-.022em}
.hero .lede{margin:28px 0 0;max-width:640px;font-size:18px;font-weight:300;line-height:1.7;color:#D7DBE0}
.meta{margin-top:32px;display:flex;flex-wrap:wrap;gap:10px 32px;font-size:11px;font-weight:500;letter-spacing:.26em;color:var(--dim)}

/* reveal */
.rv{opacity:0;transform:translateY(22px);transition:opacity 1.1s ease,transform 1.3s cubic-bezier(.16,.84,.24,1)}
.rv.on{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* brief */
.brief{background:var(--ink2);border-bottom:1px solid var(--line)}
.brief-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:0}
.brief-item{padding:44px 32px 48px 0;border-right:1px solid var(--line)}
.brief-item:last-child{border-right:0}
.brief-item+.brief-item{padding-left:32px}
.brief-item .k{font-family:"Source Serif 4",Georgia,serif;font-style:italic;font-size:20px;color:var(--gold)}
.brief-item p{margin:14px 0 0;font-size:16px;font-weight:300;line-height:1.75;color:#D7DBE0}
@media (max-width:860px){.brief-item{border-right:0;border-bottom:1px solid var(--line);padding:32px 0!important}.brief-item:last-child{border-bottom:0}}

/* article */
.article{background:var(--paper);color:#0A121B}
.article-grid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:clamp(40px,6vw,96px);padding-top:clamp(80px,9vw,128px);padding-bottom:clamp(80px,9vw,128px)}
@media (max-width:980px){.article-grid{grid-template-columns:1fr}.toc{display:none}}
.toc{position:sticky;top:112px;align-self:start;display:flex;flex-direction:column;gap:2px}
.toc .eyebrow{color:#7A6440;margin-bottom:14px}
.toc a{display:block;padding:9px 0 9px 14px;border-left:1px solid #CFC6B6;color:#59616B;font-size:14px;font-weight:400;line-height:1.4;transition:color .3s ease,border-color .3s ease}
.toc a:hover{color:#0A121B}
.toc a.active{color:#0A121B;border-left-color:#7A6440}
.prose{max-width:720px}
.prose h2{margin:88px 0 0;font-family:"Source Serif 4",Georgia,serif;font-weight:300;font-size:clamp(32px,3.4vw,48px);line-height:1.08;letter-spacing:-.015em;scroll-margin-top:110px}
.prose h2:first-child{margin-top:0}
.prose h2 .no{display:block;margin-bottom:16px;font-family:"Public Sans","Helvetica Neue",Arial,sans-serif;font-style:normal;font-size:11px;font-weight:500;letter-spacing:.34em;color:#7A6440}
.prose h3{margin:44px 0 0;font-family:"Source Serif 4",Georgia,serif;font-weight:400;font-size:24px;line-height:1.25}
.prose p,.prose li{font-size:17px;font-weight:300;line-height:1.85;color:#2A3139}
.prose p{margin:20px 0 0}
.prose strong{font-weight:500;color:#0A121B}
.prose ul,.prose ol{margin:20px 0 0;padding-left:22px}
.prose li{margin:8px 0}
.prose li::marker{color:#7A6440}
.prose a.inl{color:#0A121B;border-bottom:1px solid #B9A47E}
.prose a.inl:hover{border-color:#0A121B}
.pull{margin:48px 0 0;padding:4px 0 4px 28px;border-left:1px solid #7A6440;font-family:"Source Serif 4",Georgia,serif;font-style:italic;font-weight:300;font-size:clamp(24px,2.4vw,32px);line-height:1.3;color:#0A121B}
.note{margin:32px 0 0;padding:22px 26px;background:#E6E0D4;font-size:15px!important;line-height:1.75!important}
.note b{font-weight:500;letter-spacing:.2em;font-size:11px;color:#7A6440;display:block;margin-bottom:6px}

/* figure / diagram */
figure{margin:48px 0 0}
figure svg{width:100%;height:auto;display:block}
figcaption{margin-top:14px;font-size:13px;font-weight:300;line-height:1.6;color:#59616B}

/* example table */
.example{margin:44px 0 0;background:var(--ink);color:var(--ivory);padding:clamp(28px,4vw,44px)}
.example .eyebrow{color:var(--gold)}
.example h4{margin:14px 0 0;font-family:"Source Serif 4",Georgia,serif;font-weight:300;font-size:26px;line-height:1.2}
.example p{color:var(--mute)!important;font-size:15px!important}
.ex-table{width:100%;margin-top:24px;border-collapse:collapse;font-size:15px}
.ex-table th,.ex-table td{padding:14px 0;border-bottom:1px solid var(--line);text-align:left;font-weight:300;vertical-align:top}
.ex-table th{font-size:10px;font-weight:500;letter-spacing:.26em;color:var(--dim)}
.ex-table td.num,.ex-table th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap;padding-left:16px}
.ex-table tr.total td{font-weight:500;color:var(--ivory);border-bottom:0}
.ex-table tr.total td.num{color:var(--gold)}
.ex-wrap{overflow-x:auto}
.ex-foot{margin-top:18px;font-size:12px!important;line-height:1.7!important;color:var(--dim)!important}

/* questions */
.qs{margin:28px 0 0;padding:0;list-style:none;counter-reset:q}
.qs li{counter-increment:q;position:relative;padding:18px 0 18px 52px;border-top:1px solid #D2C9B9;margin:0}
.qs li:last-child{border-bottom:1px solid #D2C9B9}
.qs li::before{content:counter(q,lower-roman) ".";position:absolute;left:0;top:18px;font-family:"Source Serif 4",Georgia,serif;font-style:italic;color:#7A6440}

/* sources */
.sources{background:#E6E0D4;color:#2A3139}
.sources .wrap{padding-top:64px;padding-bottom:64px}
.sources h2{margin:0;font-family:"Source Serif 4",Georgia,serif;font-weight:300;font-size:28px;color:#0A121B}
.sources ol{margin:22px 0 0;padding-left:20px;columns:2 360px;column-gap:56px}
.sources li{font-size:13px;line-height:1.7;margin:0 0 10px;break-inside:avoid}
.sources a{color:#0A121B;border-bottom:1px solid #B9A47E;word-break:break-word}
.sources p{margin:22px 0 0;font-size:13px;line-height:1.7;max-width:900px}

/* cta */
.cta{position:relative;min-height:70vh;display:flex;align-items:center;justify-content:center;overflow:hidden;text-align:center;background:#0C0907}
.cta .scrim{position:absolute;inset:0;background:radial-gradient(ellipse 60% 50% at 50% 50%,rgba(4,8,13,.6) 0%,rgba(4,8,13,.35) 100%)}
.cta-in{position:relative;z-index:1;padding:96px 24px;display:flex;flex-direction:column;align-items:center}
.cta h2{margin:26px 0 0;font-size:clamp(40px,5vw,76px);line-height:1;letter-spacing:-.02em}
.cta p{margin:24px 0 0;max-width:520px;font-size:17px;font-weight:300;line-height:1.7;color:#E6E2DA}

/* related */
.related{background:var(--ink2)}
.related .wrap{padding-top:clamp(72px,8vw,112px);padding-bottom:clamp(72px,8vw,112px)}
.rel-grid{margin-top:36px;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.rel{background:var(--ink2);padding:40px 36px 44px;display:flex;flex-direction:column;gap:14px;transition:background-color .5s ease}
.rel:hover{background:#0C121A}
.rel .n{font-family:"Source Serif 4",Georgia,serif;font-style:italic;color:var(--gold);font-size:20px}
.rel b{font-family:"Source Serif 4",Georgia,serif;font-weight:300;font-size:32px;line-height:1.1}
.rel span{font-size:15px;font-weight:300;line-height:1.7;color:var(--dim)}
.rel i{margin-top:10px;font-style:normal;font-size:11px;font-weight:500;letter-spacing:.24em;color:var(--gold)}

/* footer */
footer{background:#020508;color:var(--dim);border-top:1px solid rgba(244,241,234,.08)}
footer .wrap{padding-top:88px;padding-bottom:44px}
.foot-top{display:flex;flex-direction:column;align-items:center;text-align:center;gap:18px;padding-bottom:56px;border-bottom:1px solid rgba(244,241,234,.08)}
.foot-top nav{margin-top:24px;display:flex;flex-wrap:wrap;justify-content:center;gap:14px 40px;font-size:11px;font-weight:500;letter-spacing:.26em}
.legal{margin:32px auto 0;max-width:900px;text-align:center;font-size:11px;font-weight:300;line-height:1.8;color:#7D848C}

/* back to top */
.totop{position:fixed;right:clamp(16px,3vw,40px);bottom:calc(32px + env(safe-area-inset-bottom));z-index:9;width:48px;height:48px;padding:0;border:0;border-radius:50%;background:rgba(4,8,13,.6);color:var(--ivory);display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .6s ease,transform .6s cubic-bezier(.16,.84,.24,1),visibility .6s,background-color .4s ease}
.totop.show{opacity:1;visibility:visible;transform:none}
.totop:hover{background:rgba(4,8,13,.85)}
.totop:focus-visible{outline:1px solid var(--gold);outline-offset:3px}
.totop-ring{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg)}
.totop-ring circle{fill:none;stroke:rgba(244,241,234,.28);stroke-width:1}
.totop-ring .totop-prog{stroke:var(--gold);stroke-dasharray:141.4;stroke-dashoffset:141.4}

@media (max-width:760px){.hide-sm{display:none!important}.bar-r{gap:16px}.totop{width:44px;height:44px;bottom:calc(20px + env(safe-area-inset-bottom))}.prose p,.prose li{font-size:16px}}

/* responsive diagrams (HTML, not SVG, so text stays legible on phones) */
.dg{margin:48px 0 0;background:var(--ink);color:var(--ivory);padding:clamp(24px,4vw,40px)}
.dg-cap{margin-top:14px;font-size:13px;font-weight:300;line-height:1.6;color:#59616B}
.dg .lbl{font-size:10px;font-weight:500;letter-spacing:.26em;color:var(--dim)}
.dg .gl{color:var(--gold)}
.dg .t{font-family:"Source Serif 4",Georgia,serif;font-weight:300;font-size:19px;line-height:1.3;margin-top:6px}
.dg .s{font-size:12.5px;font-weight:300;line-height:1.55;color:var(--dim);margin-top:6px}
/* routes */
.routes{display:grid;grid-template-columns:200px 1fr;gap:0 40px;align-items:center}
.routes .src{border:1px solid var(--gold);padding:28px 18px;text-align:center}
.routes .src .t{font-size:22px}
.routes ul{list-style:none;margin:0;padding:0;border-left:1px solid rgba(244,241,234,.25)}
.routes li{position:relative;padding:12px 0 12px 26px;margin:0}
.routes li::before{content:"";position:absolute;left:-1px;top:50%;width:18px;border-top:1px solid rgba(244,241,234,.35)}
.routes li::after{content:"";position:absolute;left:15px;top:calc(50% - 3px);width:6px;height:6px;border-radius:50%;background:var(--gold)}
.routes li .t{font-family:"Public Sans","Helvetica Neue",Arial,sans-serif;font-size:15px;font-weight:400;margin:0}
.routes li .s{margin-top:2px}
@media (max-width:640px){.routes{grid-template-columns:1fr;gap:20px}}
/* layers */
.layers{display:flex;flex-direction:column;gap:12px}
.layers > div{border:1px solid rgba(244,241,234,.4);padding:18px 22px}
.layers > div:first-child{border-color:var(--gold)}
.layers > div.dash{border-style:dashed;border-color:rgba(244,241,234,.22)}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;counter-reset:st}
.steps > div{position:relative;border:1px solid rgba(244,241,234,.4);padding:20px 18px}
.steps > div.g{border-color:var(--gold)}
.steps > div:not(:last-child)::after{content:"";position:absolute;right:-15px;top:50%;width:16px;border-top:1px solid var(--gold)}
@media (max-width:760px){.steps{grid-template-columns:1fr 1fr}.steps > div:nth-child(2)::after{display:none}}
@media (max-width:440px){.steps{grid-template-columns:1fr}.steps > div::after{display:none}}

/* fixes */
@media (max-width:980px){.toc{display:none!important}}
.prose .dg li{margin:0;font-size:inherit;line-height:inherit;color:var(--ivory)}
.prose .dg li::marker{content:none}
.dg .t{color:var(--ivory)}