:root{
  --paper:#F4F2ED;--paper-2:#EAE7DF;--ink:#16181C;--muted:#6B6862;
  --rail:#CFCAC0;--signal:#1F5C4A;--signal-soft:rgba(31,92,74,.07);
  --display:'Archivo',system-ui,sans-serif;
  --body:'IBM Plex Sans',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --wrap:1120px;--pad:120px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--signal);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px;border-radius:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
.col{max-width:660px;margin:0 auto;padding:0 28px}
.eyebrow{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin:0 0 22px}
.eyebrow--signal{color:var(--signal)}
h1,h2,h3{font-family:var(--display);letter-spacing:-.025em;margin:0;line-height:1.06}
h2{font-size:clamp(30px,4.4vw,50px);font-weight:700;letter-spacing:-.03em}
h3{font-size:19px;font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0 0 18px;max-width:68ch}
.lede{font-size:19px;color:var(--muted)}

.site-head{position:sticky;top:0;z-index:50;background:rgba(244,242,237,.93);backdrop-filter:blur(10px);border-bottom:1px solid var(--rail)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:62px;gap:20px}
.mark{font-family:var(--mono);font-size:11.5px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--ink)}
.mark:hover{text-decoration:none}
.site-nav{display:flex;gap:26px;align-items:center}
.site-nav a{font-size:14px;color:var(--muted)}
.site-nav a:hover{color:var(--ink);text-decoration:none}
@media(max-width:820px){.site-nav a.hide-sm{display:none}}

.hero{padding:96px 0 0;border-top:none}
.hero h1{font-size:clamp(52px,10.5vw,124px);font-weight:800;letter-spacing:-.045em;margin:0 0 26px}
.hero .thesis{font-family:var(--display);font-weight:700;font-size:clamp(21px,2.9vw,31px);letter-spacing:-.02em;line-height:1.25;margin:0 0 22px;max-width:22ch}
.hero .sub{max-width:56ch;font-size:18px;color:var(--muted);margin-bottom:34px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.btn{display:inline-block;font-family:var(--body);font-size:15px;font-weight:500;padding:13px 22px;border-radius:2px;border:1px solid var(--ink);background:var(--ink);color:var(--paper);transition:background .18s,color .18s}
.btn:hover{background:var(--signal);border-color:var(--signal);color:#fff;text-decoration:none}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--rail)}
.btn--ghost:hover{background:transparent;color:var(--signal);border-color:var(--signal)}
.status{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.05em;margin:0}

.rail-block{padding:74px 0 var(--pad);border-top:none}
.rail-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:10px}
.rail{position:relative;min-width:760px;padding:52px 0 8px}
.rail-line{position:absolute;left:0;right:0;top:52px;height:1px;background:var(--rail)}
.rail-fill{position:absolute;left:0;top:52px;height:1px;background:var(--signal);width:0;transition:width 1.5s cubic-bezier(.22,.9,.3,1)}
.stations{position:relative;display:grid;grid-template-columns:1.15fr repeat(6,1fr);gap:0}
.stn{position:relative;padding-right:14px}
.stn-dot{width:11px;height:11px;border-radius:50%;background:var(--paper);border:1px solid var(--rail);margin-bottom:20px;transition:border-color .3s,background .3s}
.stn-dot--gate{width:5px;height:26px;border-radius:1px;background:var(--ink);border:none;margin-top:-8px}
.stn.is-live .stn-dot{border-color:var(--signal);background:var(--signal)}
.stn-name{font-family:var(--display);font-weight:700;font-size:15px;letter-spacing:-.01em;margin-bottom:5px}
.stn-meta{font-family:var(--mono);font-size:10.5px;letter-spacing:.11em;text-transform:uppercase;color:var(--muted)}
.stn-gate .stn-meta{color:var(--ink);font-weight:500}
.rail-note{font-size:15px;color:var(--muted);margin-top:34px;max-width:62ch}
.stn a{color:inherit}
.stn a:hover{color:var(--signal);text-decoration:none}

section{border-top:1px solid var(--rail)}
.pad{padding:var(--pad) 0}
.section-head{margin-bottom:52px}
.section-head h2{max-width:20ch}
.section-head p{margin-top:18px}

.answers{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-left:1px solid var(--rail)}
.answer{padding:34px 30px;border-right:1px solid var(--rail)}
.answer--right{background:var(--signal-soft)}
.answer .n{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.answer--right .n{color:var(--signal)}
.answer h3{margin-bottom:12px}
.answer p{font-size:15.5px;color:var(--muted);margin:0}
.answer--right p{color:var(--ink)}
@media(max-width:860px){.answers{grid-template-columns:1fr;border-left:none;border-top:1px solid var(--rail)}.answer{border-right:none;border-bottom:1px solid var(--rail)}}

.inside{display:grid;grid-template-columns:1fr 1fr;gap:0 60px}
.ilist{list-style:none;margin:0;padding:0}
.ilist li{padding:17px 0;border-bottom:1px solid var(--rail);font-size:16px;display:flex;gap:16px}
.ilist li::before{content:"";flex:0 0 auto;width:5px;height:5px;background:var(--signal);margin-top:10px;border-radius:50%}
@media(max-width:780px){.inside{grid-template-columns:1fr}}

.keys{background:var(--paper-2)}
.keys-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:start}
.keys-list{display:flex;flex-wrap:wrap;gap:7px;margin-top:8px}
.key{font-family:var(--mono);font-size:11px;letter-spacing:.07em;text-transform:uppercase;padding:6px 11px;border:1px solid var(--rail);border-radius:2px;color:var(--muted)}
.key--on{border-color:var(--signal);color:var(--signal);background:var(--paper)}
@media(max-width:860px){.keys-grid{grid-template-columns:1fr;gap:34px}}

.chapters{display:grid;grid-template-columns:1fr 1fr;border-left:1px solid var(--rail)}
.chap{padding:28px 30px;border-right:1px solid var(--rail);border-bottom:1px solid var(--rail)}
.chap .n{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--signal);margin-bottom:10px}
.chap h3{margin-bottom:8px}
.chap p{font-size:15px;color:var(--muted);margin:0 0 12px}
.chap.soon .n,.chap.soon h3{color:var(--muted)}
@media(max-width:700px){.chapters{grid-template-columns:1fr;border-left:none;border-top:1px solid var(--rail)}.chap{border-right:none}}

.capture{background:var(--ink);color:var(--paper);border-top:none}
.capture h2{color:var(--paper)}
.capture .eyebrow{color:#8E8A82}
.capture p{color:#B6B1A8}
.form{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px;max-width:520px}
.form input{flex:1 1 260px;font-family:var(--body);font-size:15px;padding:13px 15px;background:transparent;border:1px solid #3A3D42;border-radius:2px;color:var(--paper)}
.form input::placeholder{color:#7C7871}
.form input:focus{border-color:var(--paper);outline:none}
.form button{font-family:var(--body);font-size:15px;font-weight:500;padding:13px 24px;background:var(--paper);color:var(--ink);border:1px solid var(--paper);border-radius:2px;cursor:pointer;transition:background .18s,color .18s}
.form button:hover{background:var(--signal);border-color:var(--signal);color:#fff}
.form-note{font-family:var(--mono);font-size:11px;letter-spacing:.05em;color:#7C7871;margin-top:16px}
.form-msg{font-size:15px;color:var(--paper);margin-top:18px;display:none}
.form-msg.show{display:block}

.sys{display:grid;grid-template-columns:repeat(4,1fr);border-left:1px solid var(--rail)}
.sysitem{padding:30px 26px;border-right:1px solid var(--rail)}
.sysitem .n{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.sysitem h3{margin-bottom:10px;font-size:17px}
.sysitem p{font-size:14.5px;color:var(--muted);margin:0 0 14px}
.sysitem a{font-size:14px}
@media(max-width:900px){.sys{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.sys{grid-template-columns:1fr;border-left:none;border-top:1px solid var(--rail)}.sysitem{border-right:none;border-bottom:1px solid var(--rail)}}

.faq{border-top:1px solid var(--rail)}
details{border-bottom:1px solid var(--rail);padding:22px 0}
summary{font-family:var(--display);font-weight:700;font-size:18px;letter-spacing:-.01em;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--mono);font-weight:400;color:var(--signal);font-size:20px}
details[open] summary::after{content:"\2013"}
details p{margin-top:14px;color:var(--muted);font-size:16px}

.site-foot{border-top:1px solid var(--rail);padding:46px 0 60px}
.foot-row{display:flex;flex-wrap:wrap;gap:22px;justify-content:space-between;align-items:center}
.foot-links{display:flex;flex-wrap:wrap;gap:22px}
.foot-links a{font-size:14px;color:var(--muted)}
.foot-links a:hover{color:var(--signal);text-decoration:none}
.copy{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--muted)}

.reading{font-size:18px;line-height:1.72}
.opener{padding:74px 0 0;text-align:center;border-top:none}
.opener h1{font-family:var(--display);font-weight:800;font-size:clamp(40px,7.6vw,78px);letter-spacing:-.045em;line-height:1.02;margin:0 0 18px}
.opener .kicker{font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--signal);margin:0 0 18px}
.opener .meta{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;color:var(--muted);margin:0}
.minirail{margin:52px auto 0;max-width:660px;padding:0 28px}
.mr{display:flex;align-items:center}
.mr-seg{flex:1;height:1px;background:var(--rail)}
.mr-gate{width:5px;height:22px;background:var(--ink);border-radius:1px;flex:0 0 auto}
.mr-dot{width:8px;height:8px;border-radius:50%;background:var(--paper);border:1px solid var(--rail);flex:0 0 auto}
.mr-dot.on{background:var(--signal);border-color:var(--signal)}
.mr-label{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:14px;display:flex;justify-content:space-between}
.mr-label b{color:var(--ink);font-weight:500}
article{padding:64px 0 0}
article p{margin:0 0 24px}
article h2{font-family:var(--display);font-weight:700;font-size:clamp(26px,4vw,36px);letter-spacing:-.03em;line-height:1.12;margin:64px 0 22px}
article h3{font-family:var(--display);font-weight:700;font-size:20px;letter-spacing:-.01em;margin:38px 0 12px}
article strong{font-weight:600}
.pull{font-family:var(--display);font-weight:700;font-size:clamp(23px,3.4vw,30px);letter-spacing:-.025em;line-height:1.24;color:var(--ink);border-left:3px solid var(--signal);padding:6px 0 6px 26px;margin:44px 0}
.tblwrap{overflow-x:auto;margin:34px 0}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:16px}
th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--rail);vertical-align:top}
th{font-family:var(--mono);font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);font-weight:500}
td:first-child{font-weight:600}
.checks{list-style:none;margin:28px 0;padding:0}
.checks li{padding:14px 0 14px 34px;border-bottom:1px solid var(--rail);position:relative;font-size:16.5px}
.checks li::before{content:"";position:absolute;left:0;top:21px;width:14px;height:14px;border:1px solid var(--signal);border-radius:2px}
.score{border:1px solid var(--rail);border-radius:2px;padding:8px 28px 20px;margin:40px 0}
.score dt{font-family:var(--display);font-weight:700;font-size:17px;margin-top:22px}
.score dd{margin:6px 0 0;color:var(--muted);font-size:16px}
.next{background:var(--ink);color:var(--paper);margin-top:80px;padding:76px 0;border-top:none}
.next h2{color:var(--paper);margin:0 0 16px;font-size:clamp(28px,4vw,40px)}
.next .eyebrow{color:#8E8A82}
.next p{color:#B6B1A8;max-width:56ch;margin:0 0 8px}
.teaser{border-top:1px solid #2C2F34;margin-top:44px;padding-top:28px}
.teaser .n{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:#8E8A82;margin-bottom:10px}
.teaser h3{color:var(--paper);margin:0 0 8px;font-size:21px}
.teaser a{color:#fff;text-decoration:underline;text-underline-offset:3px}

@media(max-width:780px){:root{--pad:76px}.hero{padding-top:62px}}
@media(max-width:640px){.reading{font-size:17px}.opener{padding-top:52px}article h2{margin-top:48px}.col{padding:0 24px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.rail-fill{width:100%!important}}

@media print{
  .site-head,.next,.site-foot,.minirail{display:none}
  body{background:#fff;color:#000;font-size:11pt;line-height:1.5}
  .col{max-width:100%;padding:0}
  .opener{padding:0;text-align:left}
  .opener h1{font-size:26pt}
  article h2{font-size:15pt;margin-top:22pt;page-break-after:avoid}
  .pull{border-left:2px solid #000;font-size:13pt}
  table{min-width:0}
  a{color:#000;text-decoration:none}
}