.coa-explorer{margin:0 0 64px;scroll-margin-top:30px}.coa-intro{max-width:760px;margin-bottom:32px}.coa-intro h2{letter-spacing:-.035em;margin:14px 0 20px;font-size:clamp(40px,4.7vw,66px);line-height:1.02}.coa-intro>p:last-child{color:var(--text-muted);max-width:590px;font-size:17px;line-height:1.7}.coa-study{border:1px solid var(--rule);grid-template-columns:1.05fr 1fr;scroll-margin-top:24px;display:grid}.coa-document{background:var(--paper);min-width:0;padding:32px}.coa-document-top{color:var(--text-muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;font-size:12px;display:flex}.coa-example-badge{border:1px solid var(--bronze);color:var(--bronze);text-transform:uppercase;letter-spacing:.09em;padding:6px 9px;font-size:12px}.coa-document h3{font:clamp(32px, 3vw, 42px)/1.1 var(--font-cormorant);letter-spacing:-.025em;margin:26px 0 10px}.coa-document-notice{color:var(--text-muted);margin-bottom:24px;font-size:14px;line-height:1.6}.coa-fields button{border:0;border-top:1px solid var(--rule);text-align:left;width:100%;color:var(--ink);cursor:pointer;background:0 0;align-items:center;gap:15px;padding:18px 14px;transition:background .22s,box-shadow .22s;display:flex}.coa-fields button:hover{background:var(--warm-surface)}.coa-fields button[aria-pressed=true]{background:var(--molecule-surface);box-shadow:inset 3px 0 var(--bronze)}.coa-number{font:12px var(--font-geist-mono);color:var(--text-muted);align-self:flex-start;padding-top:2px}.coa-field-copy{flex-direction:column;gap:5px;min-width:0;display:flex}.coa-field-copy>span{color:var(--text-muted);font-size:14px}.coa-field-copy strong{font-size:18px;font-weight:500;line-height:1.35}.coa-field-copy small{color:var(--text-muted);font-size:12px;line-height:1.5}.coa-fields svg{color:var(--bronze);flex-shrink:0;margin-left:auto;transition:transform .22s}.coa-fields button[aria-pressed=true] svg{transform:rotate(45deg)}.coa-fields button:focus-visible{outline:2px solid var(--bronze);outline-offset:-2px}.coa-document-end{border-top:1px solid var(--rule);color:var(--text-muted);padding-top:18px;font-size:12px;line-height:1.6}.coa-explanation-wrap{background:var(--ink);min-width:0;color:var(--bone);flex-direction:column;padding:40px;scroll-margin-top:24px;display:flex}.coa-check-count{color:var(--gold);font-size:14px}.coa-check-count strong{font-weight:500}.coa-check-track{background:color-mix(in srgb, var(--gold) 22%, transparent);height:3px;margin:18px 0 40px}.coa-check-track span{background:var(--gold);height:100%;transition:width .3s;display:block}.coa-explanations{flex:1}.coa-explanation:not([hidden]){animation:.25s both coa-enter}.coa-explanation h3{font:clamp(34px, 3.4vw, 46px)/1.08 var(--font-cormorant);letter-spacing:-.025em;max-width:410px}.coa-explanation>p{color:var(--bone);margin:24px 0 30px;font-size:17px;line-height:1.8}.coa-supplier-question{border-top:1px solid color-mix(in srgb, var(--gold) 30%, transparent);padding-top:23px}.coa-supplier-question>span{color:var(--gold);font-size:13px}.coa-supplier-question p{margin-top:12px;font-size:18px;line-height:1.65}.coa-step-actions{gap:12px;margin-top:35px;display:flex}.coa-step-actions button{border:1px solid var(--gold);background:var(--gold);min-height:48px;color:var(--ink);cursor:pointer;justify-content:center;align-items:center;gap:15px;padding:12px 18px;font-size:14px;display:flex}.coa-step-actions button:first-child{min-width:48px;color:var(--gold);background:0 0;padding:12px}.coa-step-actions button:disabled{opacity:.3;cursor:default}.coa-step-actions button:focus-visible{outline:2px solid var(--gold);outline-offset:4px}.coa-explanation-foot{color:color-mix(in srgb, var(--bone) 78%, var(--ink));margin-top:24px;font-size:12px;line-height:1.7}@keyframes coa-enter{0%{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}@media (max-width:1000px){.coa-document{padding:25px}.coa-explanation-wrap{padding:30px}.coa-explanation>p{font-size:16px}.coa-field-copy strong{font-size:17px}}@media (max-width:760px){.coa-study{grid-template-columns:1fr}.coa-explanation-wrap{min-height:550px;padding:28px 24px}.coa-check-track{margin-bottom:28px}.coa-document{padding:26px 20px}.coa-intro h2{font-size:44px}.coa-fields button{padding:16px 12px}.coa-explorer{margin-bottom:45px}}@media (prefers-reduced-motion:reduce){.coa-explorer *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@media print{.coa-study{border:0;display:block}.coa-explanation-wrap{color:#000;background:#fff;padding:20px 0;display:block}.coa-explanation[hidden]{display:block!important}.coa-explanation{break-inside:avoid;margin-bottom:25px}.coa-explanation p,.coa-supplier-question>span,.coa-check-count,.coa-explanation-foot{color:#000}.coa-step-actions,.coa-check-track,.coa-check-count{display:none}.coa-fields button{color:#000;background:0 0!important}.coa-supplier-question{border-color:#aaa}}.guide-page--coa .guide-heading{max-width:960px;padding-bottom:42px}.guide-page--coa .guide-heading h1{max-width:800px}.guide-page--coa .guide-byline{font-size:13px}.coa-more{border-top:1px solid var(--rule);max-width:900px;margin:0 auto 48px;padding-top:32px}.coa-more>h2{font:clamp(34px, 3.8vw, 46px)/1.1 var(--font-cormorant);letter-spacing:-.025em;margin-bottom:28px}.coa-more details{border-bottom:1px solid var(--rule);scroll-margin-top:110px}.coa-more summary{cursor:pointer;justify-content:space-between;align-items:center;gap:24px;padding:23px 0;font-size:18px;line-height:1.6;list-style:none;display:flex}.coa-more summary::-webkit-details-marker{display:none}.coa-more summary:after{content:"+";color:var(--bronze);flex-shrink:0;font-size:26px;line-height:1}.coa-more details[open] summary:after{content:"−"}.coa-more summary:focus-visible{outline:2px solid var(--bronze);outline-offset:4px}.coa-more details>div{max-width:740px;padding-bottom:24px}.coa-more p{color:var(--text-muted);font-size:16px;line-height:1.85}.coa-more p+p{margin-top:14px}.coa-more .coa-source{margin-top:20px;font-size:13px}.coa-source a{text-underline-offset:3px;text-decoration:underline}.coa-next{background:var(--warm-surface);justify-content:space-between;align-items:center;gap:40px;padding:40px;scroll-margin-top:110px;display:flex}.coa-next h2{font:clamp(32px, 3.5vw, 44px)/1.1 var(--font-cormorant);letter-spacing:-.025em;margin-bottom:15px}.coa-next p{max-width:570px;color:var(--text-muted);font-size:16px;line-height:1.8}.coa-next .hw-button{flex-shrink:0}@media (max-width:760px){.coa-next{flex-direction:column;align-items:flex-start;gap:24px;padding:28px}.coa-more summary{font-size:17px}.guide-page--coa .guide-heading{padding-bottom:34px}}