/* COSGEO.AI — Editorial Print system (sister pipeline of yansecos.com) */
:root{
  --navy:#002F6C; --green:#509E2F; --paper:#F2EFE7; --paper-soft:#E8E4D8;
  --ink:#181715; --ink-soft:#2A2825;
  --rule:rgba(24,23,21,.16); --rule-soft:rgba(24,23,21,.08);
  --muted:rgba(24,23,21,.55); --whisper:rgba(24,23,21,.32);
  --gold:#b8893f;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:'IBM Plex Sans',sans-serif;font-weight:300;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}
body::before{content:'';position:fixed;inset:0;pointer-events:none;z-index:100;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.92' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
  opacity:.08;mix-blend-mode:multiply}
.serif{font-family:'Fraunces',serif;font-feature-settings:'ss01','ss02','cv01'}
.mono{font-family:'IBM Plex Mono',monospace}
.soft{font-variation-settings:'SOFT' 100,'opsz' 144}
a{color:inherit;text-decoration:none}
em.glow{font-family:'Fraunces',serif;font-style:italic;font-weight:200;font-variation-settings:'SOFT' 100,'opsz' 144;color:var(--green)}
em.deep{font-family:'Fraunces',serif;font-style:italic;font-weight:200;font-variation-settings:'SOFT' 100,'opsz' 144;color:var(--navy)}

/* index bar */
.indexbar{display:flex;justify-content:space-between;align-items:center;padding:14px 4vw;border-bottom:1px solid var(--rule);font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.indexbar b{color:var(--ink);font-weight:500}
nav.toc{display:flex;gap:26px;padding:16px 4vw;border-bottom:1px solid var(--rule-soft);font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase}
nav.toc a{color:var(--muted);transition:color .2s}
nav.toc a:hover,nav.toc a.on{color:var(--ink)}
nav.toc a.on{border-bottom:1px solid var(--green);padding-bottom:2px}

/* cover */
.cover{padding:11vh 4vw 9vh;position:relative}
.eyebrow{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:14px;margin-bottom:4.5vh}
.eyebrow::after{content:'';flex:1;height:1px;background:var(--rule)}
.cover-headline{font-family:'Fraunces',serif;font-weight:300;font-variation-settings:'SOFT' 50,'opsz' 144;font-size:clamp(54px,9.5vw,164px);line-height:.9;letter-spacing:-.035em}
.cover-headline span{display:block;opacity:0;animation:fadeUp .9s cubic-bezier(.16,1,.3,1) forwards}
.cover-headline span:nth-child(1){animation-delay:.25s}
.cover-headline span:nth-child(2){animation-delay:.4s}
.cover-headline span:nth-child(3){animation-delay:.55s}
.cover-headline span:nth-child(4){animation-delay:.7s}
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
.cover-sub{max-width:560px;margin-top:5vh;font-size:15.5px;color:var(--ink-soft)}
.cover-sub .cn{display:block;margin-top:14px;font-family:'Noto Serif SC',serif;font-weight:300;font-size:12.5px;letter-spacing:.45em;color:var(--whisper)}

/* page headline (inner pages) */
.page-head{padding:9vh 4vw 6vh;border-bottom:1px solid var(--rule)}
.page-head h1{font-family:'Fraunces',serif;font-weight:300;font-variation-settings:'SOFT' 50,'opsz' 144;font-size:clamp(40px,6.5vw,96px);line-height:.92;letter-spacing:-.03em}
.page-head p{max-width:620px;margin-top:3vh;color:var(--ink-soft);font-size:15.5px}

/* sections */
section.sheet{padding:9vh 4vw;border-bottom:1px solid var(--rule-soft);position:relative}
section.sheet.dark{background:var(--ink);color:var(--paper)}
section.sheet.dark .eyebrow{color:rgba(242,239,231,.5)}
section.sheet.dark .eyebrow::after{background:rgba(242,239,231,.18)}
.chapter-letter{position:absolute;top:2vh;right:4vw;font-family:'Fraunces',serif;font-weight:300;font-size:clamp(120px,18vw,300px);line-height:1;color:var(--rule-soft);user-select:none;pointer-events:none}
.chapter-letter i{position:absolute;bottom:18%;left:-10px;font-style:normal;font-size:26px;color:var(--green)}
h2.display{font-family:'Fraunces',serif;font-weight:300;font-variation-settings:'SOFT' 40,'opsz' 144;font-size:clamp(32px,4.6vw,64px);line-height:1.02;letter-spacing:-.02em;max-width:820px}
.lede{max-width:640px;margin-top:3vh;font-size:16px;color:var(--ink-soft)}
.dark .lede{color:rgba(242,239,231,.75)}

/* stat band */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:0;border:1px solid var(--rule);margin-top:6vh}
.stat{padding:26px 22px;border-right:1px solid var(--rule)}
.stat:last-child{border-right:none}
.stat .n{font-family:'Fraunces',serif;font-weight:300;font-variation-settings:'SOFT' 30,'opsz' 144;font-size:44px;line-height:1}
.stat .n sup{font-size:18px;color:var(--green)}
.stat .l{font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-top:10px;line-height:1.6}
.dark .stat{border-color:rgba(242,239,231,.14)}
.dark .stats{border-color:rgba(242,239,231,.14)}
.dark .stat .l{color:rgba(242,239,231,.45)}

/* spec table (scoreboard) */
table.spec{width:100%;border-collapse:collapse;margin-top:5vh;font-size:13px}
table.spec th{font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:400;text-align:left;padding:12px 14px;border-bottom:1px solid var(--rule)}
table.spec td{padding:13px 14px;border-bottom:1px solid var(--rule-soft);vertical-align:top}
table.spec td.k{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--ink-soft)}
table.spec .win{color:var(--green);font-weight:500}
table.spec .lose{color:#a33b2e}
table.spec .full{background:rgba(80,158,47,.07)}
.dark table.spec th{color:rgba(242,239,231,.45);border-color:rgba(242,239,231,.18)}
.dark table.spec td{border-color:rgba(242,239,231,.09)}

/* method steps */
.steps{margin-top:6vh;border-top:1px solid var(--rule)}
.step{display:grid;grid-template-columns:90px 1fr 1.4fr;gap:30px;padding:34px 0;border-bottom:1px solid var(--rule-soft)}
.step .no{font-family:'Fraunces',serif;font-weight:300;font-size:40px;color:var(--whisper)}
.step .no i{font-style:normal;color:var(--green);font-size:16px;vertical-align:top}
.step h3{font-family:'Fraunces',serif;font-weight:400;font-variation-settings:'SOFT' 40,'opsz' 144;font-size:24px;line-height:1.1}
.step h3 .cn{display:block;font-family:'Noto Serif SC',serif;font-weight:300;font-size:11px;letter-spacing:.4em;color:var(--whisper);margin-top:8px}
.step .body{color:var(--ink-soft);font-size:14.5px}
.step .body .src{display:block;margin-top:12px;font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.06em;color:var(--muted)}
@media(max-width:760px){.step{grid-template-columns:1fr;gap:10px}}

/* journey log */
.log{margin-top:6vh;border-left:1px solid var(--rule);padding-left:34px}
.entry{position:relative;padding-bottom:6vh}
.entry::before{content:'';position:absolute;left:-38px;top:8px;width:7px;height:7px;background:var(--green);border-radius:50%}
.entry .date{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.entry h3{font-family:'Fraunces',serif;font-weight:400;font-variation-settings:'SOFT' 40,'opsz' 144;font-size:26px;margin:10px 0 14px}
.entry p,.entry li{color:var(--ink-soft);font-size:14.5px;max-width:680px}
.entry ul{list-style:none;margin-top:8px}
.entry li{padding:7px 0 7px 18px;position:relative}
.entry li::before{content:'—';position:absolute;left:0;color:var(--whisper)}

/* callout */
.callout{border:1px solid var(--rule);padding:30px 34px;margin-top:5vh;max-width:760px}
.callout .tag{font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--green);margin-bottom:12px}
.callout p{font-family:'Fraunces',serif;font-weight:300;font-variation-settings:'SOFT' 60,'opsz' 144;font-size:21px;line-height:1.35}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1px;background:var(--rule-soft);border:1px solid var(--rule);margin-top:6vh}
.card{background:var(--paper);padding:30px 26px}
.card .tag{font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.card h3{font-family:'Fraunces',serif;font-weight:400;font-variation-settings:'SOFT' 40,'opsz' 144;font-size:24px;margin:14px 0 12px}
.card p{font-size:13.5px;color:var(--ink-soft)}
.card .kv{margin-top:18px;border-top:1px solid var(--rule-soft);padding-top:12px;font-family:'IBM Plex Mono',monospace;font-size:10.5px;line-height:2;color:var(--muted)}
.card .kv b{color:var(--ink);font-weight:500;float:right}

/* footer */
footer{padding:8vh 4vw 6vh;background:var(--ink);color:var(--paper)}
footer .big{font-family:'Fraunces',serif;font-weight:300;font-variation-settings:'SOFT' 60,'opsz' 144;font-size:clamp(30px,4.5vw,58px);line-height:1.05;max-width:760px}
footer .cols{display:flex;flex-wrap:wrap;gap:6vw;margin-top:6vh;padding-top:4vh;border-top:1px solid rgba(242,239,231,.14)}
footer .col{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.1em;line-height:2.3;color:rgba(242,239,231,.5)}
footer .col a:hover{color:var(--paper)}
footer .fine{margin-top:5vh;font-family:'IBM Plex Mono',monospace;font-size:9.5px;color:rgba(242,239,231,.32);letter-spacing:.08em}
.btn{display:inline-block;margin-top:4vh;border:1px solid var(--ink);padding:14px 30px;font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;transition:all .25s}
.btn:hover{background:var(--ink);color:var(--paper)}
.dark .btn,footer .btn{border-color:rgba(242,239,231,.4);color:var(--paper)}
.dark .btn:hover,footer .btn:hover{background:var(--paper);color:var(--ink)}

/* ===== ARTICLE / INSIGHTS ===== */
.article{max-width:760px;margin:0 auto;padding:0 4vw}
.article-meta{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);display:flex;gap:18px;flex-wrap:wrap;margin-bottom:3vh}
.article-meta .cat{color:var(--green)}
.article h1.title{font-family:'Fraunces',serif;font-weight:300;font-variation-settings:'SOFT' 50,'opsz' 144;font-size:clamp(32px,5vw,64px);line-height:1.02;letter-spacing:-.03em;margin-bottom:3.2vh}
.article .standfirst{font-size:18px;line-height:1.55;color:var(--ink-soft);border-left:2px solid var(--green);padding-left:22px;margin-bottom:5vh}
.article h2{font-family:'Fraunces',serif;font-weight:400;font-variation-settings:'SOFT' 40,'opsz' 144;font-size:clamp(23px,3.3vw,36px);line-height:1.1;letter-spacing:-.015em;margin:6.5vh 0 2.4vh}
.article h3{font-family:'IBM Plex Sans',sans-serif;font-weight:500;font-size:17px;margin:4vh 0 1.4vh}
.article p{font-size:16px;line-height:1.72;color:var(--ink-soft);margin-bottom:2.2vh}
.article p strong,.article li strong{color:var(--ink);font-weight:500}
.article a{border-bottom:1px solid var(--rule)}
.article a:hover{border-color:var(--ink)}
.article ul,.article ol{margin:0 0 2.8vh 0;padding-left:0;list-style:none}
.article li{font-size:15.5px;line-height:1.6;color:var(--ink-soft);padding:9px 0 9px 26px;position:relative;border-bottom:1px solid var(--rule-soft)}
.article li::before{content:'';position:absolute;left:0;top:16px;width:8px;height:1px;background:var(--green)}
.article blockquote.pull{font-family:'Fraunces',serif;font-weight:300;font-variation-settings:'SOFT' 60,'opsz' 144;font-size:clamp(22px,3vw,30px);line-height:1.3;margin:5.5vh 0;color:var(--ink)}
.article blockquote.pull em{font-style:italic;color:var(--green)}
.datatable{width:100%;border-collapse:collapse;margin:4vh 0;font-size:13.5px}
.datatable th{font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:400;text-align:left;padding:11px 12px;border-bottom:1px solid var(--rule)}
.datatable td{padding:11px 12px;border-bottom:1px solid var(--rule-soft);vertical-align:top}
.datatable td.n{font-family:'IBM Plex Mono',monospace;color:var(--green);font-weight:500}
.faq{margin:5vh 0 0;border-top:1px solid var(--rule)}
.faq .q{font-family:'Fraunces',serif;font-weight:400;font-variation-settings:'SOFT' 40,'opsz' 144;font-size:20px;padding:3.2vh 0 1vh}
.faq .a{font-size:15px;color:var(--ink-soft);line-height:1.66;padding-bottom:3.2vh;border-bottom:1px solid var(--rule-soft)}
.article-cta{background:var(--ink);color:var(--paper);padding:5.5vh 6vw;margin:7vh 0 0}
.article-cta .tag{font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--green);margin-bottom:14px}
.article-cta h3{font-family:'Fraunces',serif;font-weight:300;font-variation-settings:'SOFT' 60,'opsz' 144;font-size:clamp(22px,3vw,32px);line-height:1.2;margin-bottom:2vh}
.article-cta p{color:rgba(242,239,231,.72);font-size:15px;margin-bottom:3vh}
.source-note{font-family:'IBM Plex Mono',monospace;font-size:11px;line-height:1.85;color:var(--muted);border-top:1px solid var(--rule);margin-top:6vh;padding-top:3vh}
/* insights index */
.post-list{max-width:900px;margin:0 auto;padding:0 4vw}
.post{display:grid;grid-template-columns:150px 1fr;gap:34px;padding:5vh 0;border-bottom:1px solid var(--rule)}
.post .when{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);line-height:1.9}
.post .when .cat{color:var(--green);display:block;margin-top:6px}
.post h2{font-family:'Fraunces',serif;font-weight:400;font-variation-settings:'SOFT' 40,'opsz' 144;font-size:clamp(23px,3vw,32px);line-height:1.08;letter-spacing:-.02em;margin-bottom:1.5vh}
.post p{font-size:15px;color:var(--ink-soft);line-height:1.6;max-width:580px}
.post .more{display:inline-block;margin-top:2.2vh;font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--green)}
@media(max-width:680px){.post{grid-template-columns:1fr;gap:10px}}

/* nav wrap + cta (responsive polish) */
nav.toc{flex-wrap:wrap;row-gap:9px}
nav.toc a.cta{color:var(--green)}
nav.toc a.cta:hover{color:var(--green);opacity:.65}
nav.toc a.cta.on{border-bottom:1px solid var(--green);padding-bottom:2px}
/* pricing tiers (work-with-us) */
.tier .price{font-family:'Fraunces',serif;font-weight:300;font-variation-settings:'SOFT' 30,'opsz' 144;font-size:34px;line-height:1;margin:8px 0 0}
.tier .price small{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:block;margin-top:8px}
.tier ul{list-style:none;margin-top:16px;border-top:1px solid var(--rule-soft);padding-top:14px}
.tier li{font-size:13px;color:var(--ink-soft);padding:6px 0 6px 18px;position:relative;line-height:1.5;border:none}
.tier li::before{content:'';position:absolute;left:0;top:11px;width:7px;height:1px;background:var(--green)}
.whofor{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--rule-soft);border:1px solid var(--rule);margin-top:5vh}
.whofor>div{background:var(--paper);padding:28px 26px}
.whofor h3{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.18em;text-transform:uppercase;margin-bottom:14px}
.whofor .yes h3{color:var(--green)}
.whofor .no h3{color:#a33b2e}
.whofor ul{list-style:none}
.whofor li{font-size:14px;color:var(--ink-soft);padding:7px 0 7px 22px;position:relative;line-height:1.45}
.whofor .yes li::before{content:'\2713';position:absolute;left:0;color:var(--green)}
.whofor .no li::before{content:'\2715';position:absolute;left:0;color:#a33b2e}
@media(max-width:680px){.whofor{grid-template-columns:1fr}}