:root{--paper:#f5f7f9;--ink:#14191f;--muted:#647487;--accent:#35597b;--line:#d8e0e8}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 Arial,Helvetica,sans-serif}a{color:inherit}button,input,select{font:inherit}button,a,input,select{outline-offset:5px}button{cursor:pointer}header{position:fixed;top:0;left:0;right:0;height:76px;z-index:30;background:#10151b;color:var(--paper);display:flex;align-items:center;justify-content:space-between;padding:0 30px;border-bottom:1px solid #344251;gap:16px}header>span{font-size:10px;letter-spacing:.14em}.wordmark{font-size:22px;font-weight:900;letter-spacing:.23em;text-decoration:none}.small-button{border:1px solid #7b91a6;text-decoration:none;font-size:11px;padding:10px 15px}.rail{position:fixed;top:76px;bottom:0;width:245px;padding:25px 20px;overflow-y:auto;scrollbar-width:thin;background:var(--paper);border-right:1px solid var(--line)}.rail a{display:flex;gap:10px;font-size:12px;text-decoration:none;padding:10px 0;line-height:1.4}.rail a span{font-size:10px;color:var(--muted)}.rail .rail-feature{color:var(--accent);font-weight:bold;border-bottom:1px solid var(--line);margin-bottom:12px}.label{font-size:10px;letter-spacing:.15em;text-transform:uppercase;font-weight:700;color:var(--accent)}main{margin-left:245px;padding-top:76px}.hero{padding:75px 5vw;background:#14191f;color:var(--paper);display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center}.hero .label,.closing .label{color:#b7cede}h1{font-size:clamp(44px,5.1vw,80px);line-height:1.04;letter-spacing:-.055em;margin:26px 0}h1 em{font-style:normal;color:#b7cede}.hero p{max-width:580px;color:#c8d4de}.hero .lead{font-size:22px;line-height:1.4;color:var(--paper)}.hero figure{margin:0}.hero img{width:100%;height:450px;object-fit:cover}.hero figcaption{font-size:9px;letter-spacing:.1em;color:#a0b4c5;margin-top:10px}.hero-meta{display:flex;gap:17px;flex-wrap:wrap;font-size:10px;border-top:1px solid #344251;margin-top:30px;padding-top:19px}.button{display:inline-flex;align-items:center;gap:22px;padding:15px 21px;background:var(--accent);color:#fff;text-decoration:none;font-size:12px;font-weight:700;line-height:1.5}.button.light{background:var(--paper);color:var(--ink);margin-top:16px}.intro,.workspace,.lessons,.sources{max-width:1080px;padding:65px 45px;margin:auto}h2{font-size:clamp(30px,3.2vw,48px);line-height:1.12;letter-spacing:-.045em;margin:18px 0 24px}h3{font-size:21px;line-height:1.3;letter-spacing:-.025em}.three{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;margin:32px 0}.three div{border-top:1px solid var(--ink);padding-top:17px}.three b{font-size:12px}.three p{font-size:14px}.callout{padding:24px 28px;background:#e9eff5;border-left:3px solid var(--accent);font-size:14px}.callout p{margin:8px 0}.workspace{border-top:1px solid var(--line)}.section-head p{max-width:710px;color:var(--muted)}.fields{display:grid;grid-template-columns:1fr 1fr;gap:17px}label{display:block;font-size:12px;font-weight:bold}input,select{width:100%;padding:13px;background:#ffffff;border:1px solid #bdcbd7;margin:7px 0 15px;border-radius:0;color:var(--ink);min-width:0}.helper{font-size:12px;color:var(--muted)}.search-kit{padding:25px;background:#e9eff5;margin:28px 0}.search-kit #query{font-size:20px;line-height:1.35;font-weight:bold;overflow-wrap:anywhere}.search-kit #product-tip{font-size:13px}.actions{display:flex;align-items:center;gap:17px;flex-wrap:wrap}button{padding:11px 16px;background:var(--ink);color:var(--paper);border:1px solid var(--ink);font-size:12px}.textlink{font-size:12px;text-underline-offset:5px}.message-card{padding:28px;border:1px solid var(--line);background:#ffffff}.message-head{display:flex;justify-content:space-between;gap:20px;align-items:center}.message-card h3{margin:12px 0 20px}pre,.message{white-space:pre-wrap;overflow-wrap:anywhere;font:13px/1.8 Arial,Helvetica,sans-serif}.message-card pre{margin:0 0 30px}.message-card h3:nth-of-type(1){border-top:1px solid var(--line);padding-top:27px}.message-head h3{border:0!important;padding-top:0!important}#feedback,#compare-status{font-size:12px;min-height:20px;color:var(--accent)}.lesson{padding:38px 0 45px;border-top:1px solid var(--line)}.lesson p{max-width:750px;font-size:15px}.lesson h2{font-size:35px}.follow{border-top:1px solid var(--line);padding:18px 0}.follow summary{font-size:17px;font-weight:bold;cursor:pointer}.follow h4{font-size:10px;letter-spacing:.1em;color:var(--accent);margin-top:25px}.follow p{font-size:14px}.comparison{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:25px 0}.provider{padding:22px 18px;background:#ecf1f6;border-top:2px solid var(--accent)}.provider h3{margin:0 0 20px}.provider input{font-size:12px;padding:10px}.provider label{font-size:10px;line-height:1.5}.provider .result{border-top:1px solid var(--line);padding:17px 0;font-size:13px;line-height:1.5}.result strong{display:block;font-size:22px;margin:6px 0}.terms{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.term{padding:23px;background:#ecf1f6}.term>span{font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.term h3{margin:7px 0 10px}.term p{font-size:14px;margin:0 0 9px}.term small{font-size:12px;color:var(--muted)}#term-count{font-size:12px;color:var(--muted)}.closing{padding:65px 5vw;background:var(--ink);color:var(--paper)}.closing h2{max-width:760px}.closing p{max-width:720px;color:#c8d4de}.closing small{display:block;font-size:11px;color:#a0b4c5;margin-top:15px}.sources a{display:block;font-size:12px;margin:9px 0}.sources p{font-size:12px;color:var(--muted)}footer{padding:25px 45px;border-top:1px solid var(--line);font-size:10px;display:flex;justify-content:space-between}.reveal{animation:arrive .65s cubic-bezier(.22,1,.36,1) both}@keyframes arrive{from{opacity:.5;transform:translateY(18px)}to{opacity:1;transform:none}}@media(max-width:1150px){.hero{grid-template-columns:1fr}.hero img{height:310px;object-position:center 30%}.hero figure{max-width:500px}.comparison{grid-template-columns:1fr}.provider{display:grid;grid-template-columns:1fr 1fr;gap:0 15px}.provider h3,.provider .result{grid-column:1/-1}}@media(max-width:760px){header{height:66px;padding:0 19px}header>span{display:none}.wordmark{font-size:19px}.rail{display:none}main{margin-left:0;padding-top:66px}.hero{padding:43px 23px;gap:30px}.hero h1{font-size:46px}.hero .lead{font-size:19px}.hero img{height:320px}.intro,.workspace,.lessons,.sources{padding:45px 23px}.three,.fields,.terms{grid-template-columns:1fr}.three{gap:12px}.message-card{padding:21px}.message-head{align-items:flex-start;flex-direction:column;gap:0}.lesson h2{font-size:30px}.provider{padding:22px 16px}.callout{padding:20px}.closing{padding:45px 23px}.closing .button{font-size:11px}.hero-meta{font-size:9px}.button{gap:12px}footer{padding:25px 23px;gap:15px}pre{font-size:12px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{animation:none}}@media print{header,.rail,.actions,button{display:none}main{margin:0;padding:0}.hero{display:block}.hero figure{display:none}.workspace,.intro,.lessons{padding:20px}.term,.lesson,.provider{break-inside:avoid}.comparison{display:block}}

/* SOURCING STUDIO / independent visual identity */
:root{--paper:#f5f7f9;--ink:#14191f;--accent:#35597b;--muted:#52677a;--line:#d8e0e8}
body{font-family:Inter,Arial,Helvetica,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
header{height:80px;padding:0 34px;background:rgba(16,21,27,.98)}
header>span{color:#b8cada;font-family:monospace;letter-spacing:.16em}.wordmark{font-size:21px;letter-spacing:.25em}
.small-button{border:1px solid #71899e;padding:10px 17px;transition:background .2s}
.small-button:hover{background:#263645}
.rail{top:80px;width:238px;padding:30px 22px;background:#ecf1f6;scrollbar-color:#94a8b8 transparent}
.rail>.label{margin-bottom:18px}.rail a{padding:11px 9px;border-radius:5px;transition:background .2s,color .2s}.rail a:hover,.rail a:focus-visible{background:#dce6ee;color:#163b5b}.rail a span{font-family:monospace}.rail .rail-feature{background:#141e28;color:#fff;border:0;padding:14px 12px;margin-bottom:10px}.rail .rail-feature:hover{background:#35597b;color:#fff}
main{margin-left:238px;padding-top:80px}
.hero{padding:72px clamp(30px,4vw,76px) 60px;grid-template-columns:1.15fr .85fr;gap:42px;min-height:760px;background:#10151b;overflow:hidden;position:relative}
.hero:before{content:'';position:absolute;inset:0;background:linear-gradient(110deg,transparent 58%,#18232e 100%);pointer-events:none}.hero>div,.hero figure{position:relative}
.hero h1{font-size:clamp(42px,4.7vw,74px);letter-spacing:-.065em;line-height:1.07;max-width:700px;margin:23px 0 28px}
.hero h1 em{color:#b7cede}.hero .lead{font-size:clamp(18px,1.65vw,23px);line-height:1.55;max-width:500px}.hero p:not(.label):not(.lead){font-size:14px;max-width:450px;color:#b4c4d2}
.hero figure{align-self:center;border:1px solid #556575;padding:12px 12px 18px;background:#1a222c;transform:rotate(2deg);max-width:420px;justify-self:end;box-shadow:0 32px 60px #0004}
.photo-label{display:block;font:9px/1.4 monospace;letter-spacing:.17em;color:#c3d3df;padding:2px 0 12px}
.hero img{width:100%;height:auto;aspect-ratio:4/5;object-fit:contain;display:block}
.hero figcaption{font:9px/1.4 monospace;letter-spacing:.08em;color:#b9cbd9;margin-top:14px;padding-right:70px}
.photo-index{position:absolute;right:12px;bottom:14px;font:11px monospace;color:#dae4ec}
.hero-meta{gap:10px;border:0;margin-top:28px;padding-top:0}.hero-meta span{font:10px/1.5 monospace;padding:8px 10px;border:1px solid #344251;color:#bfcede}
.button{padding:16px 22px;background:#263f56;transition:transform .2s,background .2s;border-radius:4px}.button:hover{transform:translateY(-2px);background:#35597b}.button.light{background:#e2edf5;color:#12202b}.button.light:hover{background:#fff}
.label{font-family:monospace;letter-spacing:.15em;font-size:10px}.intro,.workspace,.lessons,.sources{max-width:1170px;padding:76px 54px}
h2{letter-spacing:-.055em;font-size:clamp(31px,3.2vw,49px);line-height:1.16}h3{letter-spacing:-.025em}
.three{gap:18px}.three div{background:#fff;border:1px solid #d8e0e8;padding:25px 23px;border-radius:8px;box-shadow:0 6px 20px #23374c05}.three b{font-family:monospace;color:#35597b;font-size:11px}.three p{margin-bottom:0}
.callout{border-radius:5px;background:#e6edf4;border-left:3px solid #35597b;padding:24px 27px}.workspace{scroll-margin-top:14px}.section-head{margin-bottom:34px}.section-head p{font-size:15px}
.fields{gap:9px 22px}label{font-size:12px;color:#324b60}input,select{border:1px solid #c4d1dc;border-radius:5px;padding:14px 13px;transition:border-color .2s,box-shadow .2s;min-height:49px}input:focus,select:focus{border-color:#35597b;box-shadow:0 0 0 3px #35597b12}
.search-kit{border:1px solid #d1dde7;border-radius:8px;background:#e7eef5;padding:27px 30px}.search-kit #query{font-family:monospace;font-size:18px}
button{border-radius:4px;min-height:43px;background:#182c3e;border-color:#182c3e;transition:background .2s}button:hover{background:#35597b}.textlink{color:#294d6e}
.message-card{padding:32px;border-radius:9px;box-shadow:0 10px 32px #23374c06}.message-head{border-bottom:1px solid var(--line);margin-bottom:25px;padding-bottom:12px}.message-head h3{font-size:17px}.message-card pre{font-family:monospace;font-size:12px;line-height:1.85;background:#f2f6fa;padding:23px;border:1px solid #e0e8ef;border-radius:5px}.message-card>h3{font-size:17px}
.lessons{background:#fff}.lesson{padding:48px 0}.lesson .label{display:inline-block;border:1px solid #d8e0e8;padding:6px 10px;border-radius:4px}.lesson h2{font-size:clamp(28px,2.8vw,38px);max-width:800px;margin-top:22px}.lesson p{font-size:16px;color:#344353;max-width:800px;line-height:1.9}
.follow{background:#fff;border:1px solid #d8e0e8;border-radius:6px;padding:19px 23px;margin:10px 0}.follow summary{font-size:16px}.follow[open]{border-color:#8fa7bc}.follow .message{background:#f2f6fa;padding:20px;border-radius:4px}
.provider{background:#fff;border:1px solid #d8e0e8;border-top:3px solid #35597b;border-radius:7px;padding:24px 20px}.provider h3{font-size:19px}.provider label{font-size:11px}.provider input{min-height:40px}.provider .result{background:#eaf0f6;border:0;padding:18px 12px;border-radius:4px}.result strong{font-size:25px;color:#244765}
.terms{gap:14px}.term{padding:25px;background:#fff;border:1px solid #d8e0e8;border-radius:6px}.term>span{font-family:monospace;color:#52728d}.term h3{font-size:19px}.term p{color:#344353}.term small{line-height:1.6;display:block}
.closing{background:#111b25;padding:75px 5vw;border-top:1px solid #314454;position:relative}.closing .label{color:#a8c0d4}.closing h2{font-size:clamp(35px,4vw,57px)}.closing .button{background:#e2edf5;color:#142638;margin-top:15px}.closing p{font-size:16px;line-height:1.85}.sources{padding-top:50px;padding-bottom:50px}
@media(min-width:1500px){.hero{gap:65px}.hero h1{font-size:80px}}
@media(max-width:1150px){.hero{grid-template-columns:1.05fr .95fr;gap:25px;min-height:680px;padding:55px 32px}.hero h1{font-size:48px}.hero figure{width:100%;max-width:330px}.hero img{height:auto}.hero .lead{font-size:18px}.intro,.workspace,.lessons,.sources{padding:60px 32px}.three{grid-template-columns:1fr}.three div{padding:20px 23px}}
@media(max-width:900px){.hero{grid-template-columns:1fr;min-height:auto;padding:54px 34px}.hero h1{font-size:58px;max-width:650px}.hero figure{width:100%;max-width:360px;justify-self:center;margin:15px 0 12px}.hero .lead{font-size:21px}.hero p:not(.label):not(.lead){max-width:600px}}
@media(max-width:760px){header{height:66px;padding:0 20px}.small-button{font-size:10px;padding:9px 12px}.rail{display:none}main{padding-top:66px;margin-left:0}.hero{padding:43px 24px 36px;gap:24px}.hero h1{font-size:clamp(40px,9.7vw,64px);margin:20px 0 25px}.hero .lead{font-size:19px}.hero figure{max-width:320px;transform:rotate(1.5deg)}.hero-meta span{font-size:9px}.intro,.workspace,.lessons,.sources{padding:48px 23px}.three{gap:12px}.fields,.terms{grid-template-columns:1fr}.message-card{padding:21px 17px}.message-card pre{padding:17px 14px;font-size:11px}.message-head{flex-direction:row;align-items:center;gap:12px}.message-head h3{font-size:15px}.message-head button{padding:9px 10px;font-size:10px}.lesson p{font-size:15px}.lesson{padding:36px 0}.lesson .label{font-size:9px}.search-kit{padding:24px 20px}.follow{padding:18px}.provider{padding:22px 17px}.closing{padding:52px 24px}.closing .button{font-size:11px}.photo-label{font-size:8px}}
@media(prefers-reduced-motion:reduce){.hero figure{transform:none}.button:hover{transform:none}*{transition:none!important}}
@media print{.hero:before,.photo-index,.photo-label{display:none}.hero{background:white;color:black}.hero h1 em{color:#35597b}.hero p{color:black!important}.hero figure{display:none}.message-card pre{white-space:pre-wrap}.rail{display:none}}

.tool-instructions{padding:24px 28px;margin:26px 0;background:#eaf0f6;border:1px solid #cedce8;border-radius:7px}.tool-instructions h3{margin-top:0}.tool-instructions li{margin:10px 0;font-size:14px}.tool-instructions p{font-size:13px}.field-help{display:block;font-size:11px;font-weight:normal;line-height:1.6;color:#52677a;margin:-6px 0 19px}.supplier-question{padding:27px;margin:24px 0;background:#f5f8fb;border:1px solid #d5e0ea;border-radius:7px}.supplier-question h3{font-size:25px;margin:10px 0 20px}.supplier-question p{font-size:14px}.answer-pair{padding:18px 22px;margin-top:18px;background:white;border-left:3px solid #35597b}.answer-pair .label{border:0;padding:0;font-size:9px}.follow-context{color:#344353}.follow-feedback{font-size:12px;color:#35597b}.term[hidden]{display:none}@media(max-width:760px){.tool-instructions,.supplier-question{padding:20px}.tool-instructions ol{padding-left:20px}.answer-pair{padding:15px}.supplier-question h3{font-size:22px}}