/* Knowledge center: hub + article pages.
   Same tokens and the same two Tel Aviv cuts as the home page; nothing new published.
   Gold is a material (fills, rules, chart marks), never body-text colour. */
@font-face{font-family:'Tel Aviv Brutalist';src:url('/telaviv-brutalistbold.woff2') format('woff2');font-weight:400 700;font-display:swap}
@font-face{font-family:'Tel Aviv Modernist';src:url('/telaviv-modernistregular.woff2') format('woff2');font-weight:400;font-display:swap}
:root{
  --navy:#0A1128;--navy-2:#172A45;--gold:#C5A059;--gold-light:#DFC184;--gold-soft:#F3EBDA;
  --page:#FAF9F5;--surface:#fff;--surface-alt:#F4F3ED;--hairline:#E2DED0;--ring:#F3EFEA;--muted:#4A5672;
  --font-display:'Tel Aviv Brutalist','Assistant',system-ui,sans-serif;
  --font-body:'Tel Aviv Modernist','Assistant',system-ui,sans-serif;
  --r:18px;--shadow:0 1px 2px rgba(10,17,40,.04),0 10px 34px rgba(10,17,40,.07);
  --read:720px;--wide:1120px;--gutter:16px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:90px}
body{margin:0;background:var(--page);color:var(--navy-2);font-family:var(--font-body);font-size:clamp(16px,1.2vw,18px);line-height:1.7;overflow-x:hidden}
img{max-width:100%;display:block}
[hidden]{display:none!important}
a{color:var(--navy);text-decoration:underline;text-decoration-color:var(--gold);text-decoration-thickness:2px;text-underline-offset:3px}
h1,h2,h3{margin:0;font-family:var(--font-display);font-weight:400;color:var(--navy);line-height:1.2;text-wrap:balance}
p{margin:0}
strong,b{font-weight:700;color:var(--navy)}
:focus-visible{outline:3px solid var(--navy);outline-offset:3px}
.skip-link{position:absolute;top:-100px;right:16px;z-index:100;background:var(--navy);color:#fff;padding:12px 20px;border-radius:0 0 10px 10px;text-decoration:none}
.skip-link:focus{top:0}
.read,.wide{width:calc(100% - 2*var(--gutter));margin-inline:auto}
.read{max-width:var(--read)}
.wide{max-width:var(--wide)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--surface);border-bottom:1px solid var(--hairline)}
.site-header .wide{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.site-header img{height:44px;width:auto}
.site-header nav{display:flex;align-items:center;gap:22px;font-family:var(--font-display);font-size:16px}
.site-header nav a{text-decoration:none;color:var(--navy)}
.site-header nav a.btn-navy{color:#fff}.site-header nav a.btn-navy:hover{color:var(--navy)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font-display);font-size:17px;
  padding:12px 26px;border-radius:40px;text-decoration:none;border:0;cursor:pointer;transition:background .25s,color .25s;white-space:nowrap}
.btn-navy{background:var(--navy);color:#fff}.btn-navy:hover{background:var(--gold);color:var(--navy)}
.btn-gold{background:var(--gold);color:var(--navy)}.btn-gold:hover{background:var(--gold-light)}
.progress{position:absolute;inset:auto 0 -1px 0;height:3px;background:var(--gold);transform-origin:right;transform:scaleX(0)}

/* article hero */
.crumbs{font-size:14px;padding-top:22px;display:flex;gap:8px;flex-wrap:wrap;color:var(--muted)}
.a-hero{padding:22px 0 36px;display:grid;gap:18px}
.kicker{font-family:var(--font-display);font-size:15px;color:var(--navy);display:inline-flex;gap:10px;align-items:center}
.kicker::before{content:"";width:28px;height:3px;background:var(--gold);border-radius:2px}
.a-hero h1{font-size:clamp(32px,5vw,54px);line-height:1.12}
.a-hero .dek{font-size:clamp(18px,1.6vw,21px);color:var(--muted);max-width:36em}
.meta{display:flex;gap:10px 18px;flex-wrap:wrap;align-items:center;font-size:14px;color:var(--muted)}
.meta img{width:36px;height:36px;border-radius:50%;object-fit:cover;object-position:top;background:var(--ring)}
.meta .by{display:flex;gap:10px;align-items:center;color:var(--navy)}

/* short answer */
.tldr{background:var(--navy);color:#E9E6DC;border-radius:var(--r);padding:26px clamp(20px,4vw,34px);display:grid;gap:10px}
.tldr h2{color:#fff;font-size:20px}
.tldr strong{color:#fff}

/* body copy */
.prose{display:grid;gap:22px;padding-block:44px}
.prose h2{font-size:clamp(26px,3vw,34px);margin-top:18px}
.prose h3{font-size:21px}
.prose ul,.prose ol{margin:0;padding-inline-start:22px;display:grid;gap:8px}
.def{border-inline-start:4px solid var(--gold);padding:4px 18px;font-size:clamp(18px,1.5vw,20px);color:var(--navy)}
.src{font-size:13px;color:var(--muted)}
.note{background:var(--gold-soft);border-radius:12px;padding:14px 18px;font-size:15px}

/* number tiles */
.tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.tile{background:var(--surface);border:1px solid var(--hairline);border-radius:14px;padding:16px;display:grid;gap:4px;align-content:start}
.tile b{font-family:var(--font-display);font-weight:700;font-size:clamp(24px,2.6vw,32px);line-height:1.1;font-variant-numeric:tabular-nums}
.tile span{font-size:14px;color:var(--muted);line-height:1.4}

/* figure / interactive blocks */
.fig{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--r);padding:clamp(18px,3vw,28px);display:grid;gap:16px;box-shadow:var(--shadow)}
.fig-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}
.fig-head h3{font-size:20px}
.fig-head .tag{font-size:13px;color:var(--muted)}
.chart{width:100%;height:auto;overflow:visible}
.chart text{font-family:var(--font-body);fill:var(--muted);font-size:12px}
.chart .lbl{fill:var(--navy);font-family:var(--font-display);font-size:13px}
.chart .bar{fill:var(--gold-light);transition:fill .2s}
.chart .bar.now{fill:var(--gold)}
.chart .bar.on{fill:var(--navy)}
.chart .grid{stroke:var(--hairline);stroke-width:1}
.chart-read{min-height:3.4em;font-size:15px;border-top:1px solid var(--hairline);padding-top:12px}
.chart-read b{font-variant-numeric:tabular-nums}

/* basket calculator */
.calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:start}
.field{display:grid;gap:8px}
.field label{font-family:var(--font-display);font-size:15px;color:var(--navy);display:flex;justify-content:space-between;gap:10px}
.field output{font-variant-numeric:tabular-nums;font-family:var(--font-body)}
.field input[type=range]{width:100%;accent-color:var(--navy)}
.field input[type=number]{height:46px;border:1px solid var(--hairline);border-radius:10px;padding:0 12px;font:inherit;background:var(--page);width:100%}
.split{height:54px;border-radius:12px;overflow:hidden;display:flex;border:1px solid var(--hairline)}
.split div{display:grid;place-items:center;font-size:13px;color:var(--navy);min-width:0;white-space:nowrap;overflow:hidden;transition:flex-basis .25s}
.split .s-pen{background:var(--gold-light)}
.split .s-cap{background:var(--ring)}
.split .s-lost{background:repeating-linear-gradient(-45deg,var(--surface-alt) 0 6px,var(--hairline) 6px 8px)}
.results{display:grid;gap:10px}
.res{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--hairline);font-size:15px}
.res b{font-variant-numeric:tabular-nums;font-size:18px}
.res:last-child{border-bottom:0}

/* case study */
.case{display:grid;gap:16px}
.case-who{display:flex;gap:14px;align-items:center}
.case-who .av{width:52px;height:52px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-family:var(--font-display);font-size:22px;flex:none}
.case-who small{display:block;font-size:13px;color:var(--muted)}
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.opt{border:1px solid var(--hairline);border-radius:14px;padding:16px;display:grid;gap:10px;align-content:start}
.opt.pick{border:2px solid var(--gold)}
.opt h4{margin:0;font-family:var(--font-display);font-weight:400;font-size:17px;color:var(--navy)}
.opt dl{margin:0;display:grid;gap:6px;font-size:14px}
.opt dl div{display:flex;justify-content:space-between;gap:10px}
.opt dd{margin:0;font-weight:700;color:var(--navy);font-variant-numeric:tabular-nums}

/* steps timeline */
.timeline{list-style:none;padding:0!important;margin:0;display:grid;gap:0!important;counter-reset:t}
.timeline li{display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;padding-bottom:22px;position:relative}
.timeline li::before{counter-increment:t;content:counter(t);width:44px;height:44px;border-radius:50%;background:var(--surface);border:2px solid var(--gold);display:grid;place-items:center;font-family:var(--font-display);color:var(--navy);z-index:1}
.timeline li::after{content:"";position:absolute;right:21px;top:44px;bottom:0;width:2px;background:var(--hairline)}
.timeline li:last-child::after{display:none}
.timeline b{display:block;font-family:var(--font-display);font-weight:400;font-size:18px}

/* mistakes */
.checks{list-style:none;padding:0!important;display:grid;gap:10px!important}
.checks li{display:grid;grid-template-columns:28px minmax(0,1fr);gap:12px;background:var(--surface);border:1px solid var(--hairline);border-radius:12px;padding:14px 16px}
.checks li::before{content:"!";width:28px;height:28px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-family:var(--font-display);font-size:15px}

/* faq */
.faq details{border-bottom:1px solid var(--hairline);padding:16px 0}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;font-family:var(--font-display);font-size:18px;color:var(--navy)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;line-height:1;flex:none}
.faq details[open] summary::after{content:"−"}
.faq details p{margin-top:10px}


/* cta */
.cta-band{background:var(--navy);color:#E9E6DC;border-radius:var(--r);padding:clamp(24px,4vw,40px);display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,28px)}
.cta-band p{margin-top:6px}

/* hub */
.hub-hero{padding:48px 0 32px;display:grid;gap:14px}
.hub-hero h1{font-size:clamp(34px,5vw,58px)}
.hub-hero p{font-size:clamp(17px,1.5vw,20px);color:var(--muted);max-width:36em}
.topics{display:flex;gap:8px;flex-wrap:wrap}
.topic{font-family:var(--font-display);font-size:14px;padding:8px 16px;border-radius:30px;border:1px solid var(--hairline);background:var(--surface);color:var(--navy);cursor:pointer}
.topic[aria-pressed="true"]{background:var(--navy);color:#fff;border-color:var(--navy)}
.feature{display:grid;grid-template-columns:1.1fr .9fr;border-radius:var(--r);overflow:hidden;background:var(--surface);border:1px solid var(--hairline);box-shadow:var(--shadow);text-decoration:none;color:inherit;transition:transform .25s,border-color .25s}
.feature:hover{transform:translateY(-3px);border-color:var(--gold)}
.feature .txt{padding:clamp(22px,4vw,40px);display:grid;gap:14px;align-content:center}
.feature h2{font-size:clamp(24px,3vw,36px)}
.feature .art{background:var(--navy);position:relative;min-height:260px;display:grid;place-items:center;padding:24px}
.feature .art svg{width:100%;max-width:340px;height:auto}
.more{font-family:var(--font-display);font-size:15px;color:var(--navy)}
.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;padding-block:28px 64px}

.site-footer{border-top:1px solid var(--hairline);background:var(--surface);padding:24px 0;font-size:14px;margin-top:56px}
.site-footer .wide{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

@media (max-width:820px){
  .tiles{grid-template-columns:repeat(2,minmax(0,1fr))}
  .calc,.feature{grid-template-columns:1fr}
  .grid-cards{grid-template-columns:1fr}
  .site-header nav a:not(.btn){display:none}
}
@media (max-width:520px){
  .site-header .wide{height:62px}
  .site-header img{height:36px}
  .site-header .btn{font-size:15px;padding:9px 16px}
  .compare{grid-template-columns:1fr}
  .cta-band .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* ---- components added for the second batch ---- */
/* decision paths: options laid out as cards with "when it fits" */
.paths{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.path{background:var(--surface);border:1px solid var(--hairline);border-radius:14px;padding:18px;display:grid;gap:8px;align-content:start}
.path .ico{width:40px;height:40px;border-radius:12px;background:var(--navy);color:var(--gold-light);display:grid;place-items:center;font-family:var(--font-display);font-size:18px}
.path h3{font-size:19px}
.path p{font-size:15px}
.path .fit{font-size:14px;border-top:1px dashed var(--gold);padding-top:8px;color:var(--navy)}

/* line chart */
.chart .line{fill:none;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.chart .l-a{stroke:var(--navy)}
.chart .l-b{stroke:var(--gold)}
.chart .area{fill:var(--gold-soft);opacity:.8}
.chart .dot-a{fill:var(--navy)} .chart .dot-b{fill:var(--gold)}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:14px}
.legend span{display:inline-flex;gap:8px;align-items:center}
.legend i{width:18px;height:4px;border-radius:2px;display:inline-block}
.seg{display:inline-flex;border:1px solid var(--hairline);border-radius:30px;padding:3px;background:var(--page);flex-wrap:wrap}
.seg button{font:inherit;font-family:var(--font-display);font-size:14px;border:0;background:none;color:var(--navy);padding:7px 14px;border-radius:30px;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--navy);color:#fff}

/* where-money-hides map */
.where{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.spot{font:inherit;text-align:right;cursor:pointer;color:inherit;background:var(--surface);border:1px solid var(--hairline);border-radius:14px;padding:14px;display:grid;gap:4px;align-content:start}
.spot b{font-family:var(--font-display);font-weight:400;font-size:17px}
.spot span{font-size:14px;color:var(--muted);line-height:1.45}
.spot.hot{border-color:var(--gold);background:var(--gold-soft)}

/* big formula */
.formula{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;font-family:var(--font-display);font-size:clamp(18px,2.4vw,24px);color:var(--navy);text-align:center}
.formula .box{background:var(--surface-alt);border-radius:12px;padding:10px 16px;display:grid;gap:2px}
.formula .box small{font-family:var(--font-body);font-size:13px;color:var(--muted)}
.formula .op{font-size:28px}
.formula .box.res{background:var(--navy);color:#fff}
.formula .box.res small{color:var(--gold-light)}

/* hub list cards */
.card-a{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--r);padding:22px;display:grid;gap:10px;align-content:start;text-decoration:none;color:inherit;transition:transform .25s,border-color .25s}
.card-a:hover{transform:translateY(-3px);border-color:var(--gold)}
.card-a h3{font-size:21px}
.card-a p{font-size:15px;color:var(--muted)}
.card-a .vis{height:110px;border-radius:12px;background:var(--navy);display:grid;place-items:center;padding:12px}
.card-a .vis svg{height:100%;width:auto;max-width:100%}

@media (max-width:820px){.where{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.paths{grid-template-columns:1fr}.formula{gap:8px}}

/* related guides */
.related{display:grid;gap:14px;border-top:1px solid var(--hairline);padding-top:28px}
.related h2{font-size:22px;margin:0}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.rel-grid a{background:var(--surface);border:1px solid var(--hairline);border-radius:14px;padding:16px;display:grid;gap:8px;text-decoration:none;transition:border-color .2s}
.rel-grid a:hover{border-color:var(--gold)}
.rel-grid b{font-family:var(--font-display);font-weight:400;font-size:17px;line-height:1.3;color:var(--navy)}
.rel-grid .kicker{font-size:13px}
@media (max-width:640px){.rel-grid{grid-template-columns:1fr}}

/* hub: topic tiles, topic sections, all-guides index */
.ttiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.ttile{background:var(--surface);border:1px solid var(--hairline);border-top:4px solid var(--gold);border-radius:14px;padding:18px;display:grid;gap:6px;align-content:start;text-decoration:none;color:inherit;transition:transform .2s,box-shadow .2s}
.ttile:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.ttile b{font-family:var(--font-display);font-weight:400;font-size:21px;color:var(--navy)}
.ttile span{font-size:14px;color:var(--muted);line-height:1.45}
.ttile small{font-size:13px;color:var(--navy);margin-top:4px}
.topic-sec{padding-top:40px;scroll-margin-top:84px}
.topic-head{display:grid;gap:6px;border-bottom:1px solid var(--hairline);padding-bottom:14px}
.topic-head h2{font-size:clamp(26px,3vw,36px)}
.topic-head p{color:var(--muted);font-size:16px}
.topic-sec .grid-cards{padding-block:20px 8px}
.all{padding-top:48px;scroll-margin-top:84px}
.all-list{list-style:none;margin:0;padding:0;counter-reset:g}
.all-list li{border-bottom:1px solid var(--hairline)}
.all-list a{display:grid;grid-template-columns:48px minmax(0,1fr);grid-template-areas:"n k" "n t" "n d";column-gap:16px;row-gap:2px;padding:18px 0;text-decoration:none;color:inherit}
.all-list a::before{grid-area:n;counter-increment:g;content:counter(g, decimal-leading-zero);font-family:var(--font-display);font-size:22px;color:var(--navy);opacity:.35;align-self:start}
.all-list .kicker{grid-area:k;font-size:13px}
.all-list b{grid-area:t;font-family:var(--font-display);font-weight:400;font-size:20px;color:var(--navy)}
.all-list .d{grid-area:d;font-size:15px;color:var(--muted)}
.all-list a:hover b{text-decoration:underline;text-decoration-color:var(--gold)}
@media (max-width:820px){.ttiles{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.all-list a{grid-template-columns:34px minmax(0,1fr)}.all-list a::before{font-size:17px}}

/* calls to action: inline after the short answer, mid-article, sticky bar on phones */
.cta-inline{margin-top:14px;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--gold);border-radius:14px;padding:14px 18px;font-size:16px}
.cta-inline b{color:var(--navy)}
.cta-mid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:center;background:var(--gold-soft);border-radius:var(--r);padding:22px 24px}
.cta-mid h3{font-size:21px;margin-bottom:4px}
.cta-mid p{font-size:15px}
.mbar{display:none}
@media (max-width:640px){
  .cta-mid{grid-template-columns:1fr}
  .cta-mid .btn,.cta-inline .btn{width:100%}
  .mbar{display:flex;position:fixed;inset:auto 0 0 0;z-index:60;padding:10px max(16px,env(safe-area-inset-left)) calc(10px + env(safe-area-inset-bottom));
    background:var(--surface);border-top:1px solid var(--hairline);box-shadow:0 -6px 20px rgba(10,17,40,.08)}
  .mbar .btn{flex:1}
  body{padding-bottom:76px}
}


/* sources: one quiet line at the very end of each guide */
.src-line{font-size:12.5px;line-height:1.7;color:var(--muted);margin-top:-12px}
.src-line a{color:var(--muted);text-decoration-thickness:1px;text-decoration-color:var(--hairline)}
.src-line a:hover{color:var(--navy);text-decoration-color:var(--gold)}