/* Restricted to header and Home share controls; public content stays unchanged. */
header.share-header{height:88px;background:#fff;position:relative;z-index:20}
.share-header .header-inner{height:88px;gap:22px;justify-content:space-between}
.share-header .logo{width:120px}
.share-header .desktop-nav{display:flex;position:static;width:auto;padding:0;margin:0 auto;gap:18px;background:none;border:0;box-shadow:none;height:auto}
.share-header .desktop-nav a{font:14px/1.4 Arial,sans-serif;letter-spacing:.015em;padding:14px 0;min-height:44px;white-space:nowrap}
.share-header .header-actions{gap:18px;margin-left:0}
.share-header .edit-link,.share-header .share-toggle,.share-header .menu-toggle{font:14px/1.4 Arial,sans-serif;text-transform:uppercase;white-space:nowrap;min-height:44px}
.share-header .share-toggle,.share-header .menu-toggle{background:none;border:0;color:#242421;padding:10px 0;cursor:pointer}
.share-header .header-actions>.header-project{display:inline-flex;font-size:14px;padding:12px 16px;white-space:nowrap}
.share-header .menu-toggle{display:block}
.share-header #main-nav{display:none;position:absolute;top:88px;left:0;width:100%;height:auto;padding:26px 32px;background:#fff;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px 24px;margin:0;border-bottom:1px solid #deded9;box-shadow:0 15px 20px #0001}
.share-header #main-nav.open{display:grid}
.share-header #main-nav a{font:16px/1.4 Arial,sans-serif;padding:12px 0;min-height:44px;white-space:normal}
.share-header .mobile-quick-nav{display:none}
.home-share-dialog{padding:0;border:1px solid #d8d8d3;background:#fff;color:#242421;width:min(440px,calc(100vw - 36px));max-height:calc(100dvh - 40px);overflow:auto}
.home-share-dialog::backdrop{background:#0007}
.share-panel{padding:28px}.share-panel-top{display:flex;align-items:center;justify-content:space-between;gap:20px}
.share-panel h2{font:500 30px/1.2 Georgia,serif;margin:0}.share-panel p{font-size:16px;margin:18px 0}
.share-panel-top button{border:0;background:none;min-height:44px;font-size:14px;cursor:pointer}
.share-options{display:grid;grid-template-columns:1fr 1fr;gap:12px}.share-options a,.share-options button{display:flex;justify-content:center;align-items:center;min-height:48px;padding:12px;border:1px solid #b8b8b0;background:none;color:#242421;font:14px/1.3 Arial,sans-serif;text-transform:uppercase;cursor:pointer;text-align:center}.share-options [hidden]{display:none}
.share-url-label{display:block;font-size:14px;margin:24px 0 8px}.share-panel input{width:100%;min-width:0;min-height:44px;border:1px solid #b8b8b0;padding:10px;font-size:16px;background:#fff;color:#242421}.share-panel [data-share-status]{min-height:24px;margin-bottom:0}
@media(max-width:1120px) and (min-width:981px){.share-header .desktop-nav .nav-secondary{display:none}}
@media(min-width:981px) and (max-width:1400px){.share-header .logo{width:108px}.share-header .desktop-nav{gap:12px}.share-header .header-inner{gap:14px}.share-header .header-actions{gap:12px}.share-header .header-actions>.header-project{padding:12px}}
@media(max-width:980px){header.share-header{--header-height:112px;height:112px}.share-header .header-inner{height:68px;gap:10px}.share-header .logo{width:104px}.share-header .desktop-nav{display:none}.share-header .header-actions{gap:14px;margin-left:auto}.share-header .menu-toggle{display:block}.share-header .header-actions>.header-project{display:none}.share-header .mobile-quick-nav{display:grid;position:static;grid-template-columns:repeat(4,minmax(0,1fr));width:100%;height:44px;padding:0 18px;gap:0;margin:0;border-top:1px solid #efefeb;border-bottom:1px solid #deded9;background:#fff;box-shadow:none}.share-header .mobile-quick-nav a{display:flex;align-items:center;justify-content:center;font:12px/1.3 Arial,sans-serif;letter-spacing:0;padding:8px 2px;min-height:44px;white-space:nowrap}.share-header #main-nav{position:fixed;top:112px;bottom:0;height:calc(100dvh - 112px);overflow-y:auto;grid-template-columns:1fr;align-content:start;gap:0;padding:16px 24px 32px;background:#fcfbf8;box-shadow:none}.share-header #main-nav a{font-size:24px}.menu-is-open .share-header .mobile-quick-nav{visibility:hidden}}
@media(max-width:430px){.share-header .header-actions{gap:12px}.share-header .edit-link,.share-header .share-toggle,.share-header .menu-toggle{font-size:13px}.share-header .edit-link{display:flex;gap:3px}.share-header .mobile-quick-nav{padding:0 12px}.share-header .logo{width:98px}}
@media(max-width:980px){.share-header .mobile-quick-nav{grid-template-columns:minmax(0,1fr) minmax(0,.85fr) minmax(0,.9fr) minmax(0,1.35fr)}.share-header .mobile-quick-nav a{font-size:14px}}
/* Actual iPhone correction: two explicit rows, not a squeezed four-item row. */
@media(max-width:980px){header.share-header{--header-height:calc(156px + env(safe-area-inset-top,0px));height:var(--header-height);padding-top:env(safe-area-inset-top,0px)}.share-header .mobile-quick-nav{height:88px;grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(2,44px);padding:0 18px;gap:0 16px}.share-header .mobile-quick-nav a{font-size:14px;min-width:0;white-space:normal;overflow-wrap:normal}.share-header #main-nav{top:var(--header-height);height:calc(100dvh - var(--header-height))}}
/* V23: a business/knowledge structure, not an undifferentiated page list. */
.share-header #main-nav{grid-template-columns:minmax(0,1fr);padding:24px max(24px,calc((100vw - 1280px)/2));gap:18px;max-height:calc(100dvh - 88px);overflow-y:auto;overscroll-behavior:contain}
.menu-groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.menu-group{min-width:0}.menu-group h2{font:500 13px/1.4 Arial,sans-serif;letter-spacing:.07em;margin:0 0 8px;text-transform:uppercase;color:#696962}
.menu-group-links{display:grid;grid-template-columns:minmax(0,1fr);gap:2px}
.share-header #main-nav .menu-group-links a{font:16px/1.35 Arial,sans-serif;min-width:0;overflow-wrap:normal;white-space:normal;padding:10px 0;display:flex;align-items:center;min-height:44px}
.share-header #main-nav .menu-group-links a:first-child{font-weight:600}
.share-header #main-nav .menu-home{font-size:16px;justify-self:start}
.share-header #main-nav .menu-project{display:flex;align-items:center;justify-self:start;border-top:1px solid #b8b8b0;width:100%;font-size:18px;font-weight:600;padding-top:18px;min-height:54px}
.share-header #main-nav a:focus-visible{outline:2px solid #242421;outline-offset:3px}
.mi-home-entry .v23-market-context{max-width:620px;font-size:16px;margin-top:10px}
.mi-home-entry .v23-market-date{font-size:13px;color:#696962;margin-top:10px}
@media(max-width:980px){.menu-is-open header.share-header{--header-height:calc(68px + env(safe-area-inset-top,0px))}.menu-is-open .share-header .mobile-quick-nav{display:none}.share-header #main-nav{padding:16px 24px 28px;gap:12px;max-height:none}.menu-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 24px}.menu-group h2{font-size:13px;letter-spacing:.04em;min-height:36px;margin:0 0 4px}.share-header #main-nav .menu-group-links a{font-size:16px;padding:8px 0;min-height:44px}.share-header #main-nav .menu-home{padding:4px 0;min-height:44px}.share-header #main-nav .menu-project{font-size:18px;padding-top:16px}.menu-group-links a[href="/market-intelligence/"]{font-weight:600}}
@media(max-width:350px){.menu-groups{column-gap:16px}.share-header #main-nav{padding-left:18px;padding-right:18px}.share-header #main-nav .menu-group-links a{font-size:15px}}
/* V27: buyer-oriented editorial boxes; all destinations remain expanded. */
.menu-groups{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.menu-group{background:#f5f4ef;border:1px solid #dfddd5;padding:20px}
.menu-group h2{font-size:14px;color:#242421;font-weight:600;margin-bottom:8px}
.menu-group-description{font:14px/1.5 Arial,sans-serif;color:#696962;margin:0 0 12px;max-width:none}
.share-header #main-nav .menu-group-links a{line-height:1.4}
@media(min-width:981px) and (max-width:1400px){.share-header .header-inner{gap:10px}.share-header .logo{width:100px}.share-header .desktop-nav{gap:12px}.share-header .header-actions{gap:10px}.share-header .header-actions>.header-project{padding:12px 10px}}
@media(max-width:980px){.menu-groups{grid-template-columns:minmax(0,1fr);gap:12px}.menu-group{padding:16px}.menu-group h2{min-height:0;margin-bottom:6px}.menu-group-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 16px}.menu-group-links a[href="/field-guide/jewellery-qc/"],.menu-group-links a[href="/market-intelligence/"],.menu-group-links a[href="/development/"],.menu-group-links a[href^="/development/"]{grid-column:1/-1}.share-header #main-nav .menu-group-links a{font-size:16px}.share-header .mobile-quick-nav a{line-height:1.25}.share-header .mobile-quick-nav a[href="/market-intelligence/"]{max-width:160px;justify-self:center;text-align:center}.menu-is-open .share-header #main-nav{top:var(--header-height);height:calc(100dvh - var(--header-height))}}
@media(min-width:981px) and (max-width:1100px){.share-header .desktop-nav a[href="/development/"]{display:none}}
.share-header #main-nav a:has(.menu-link-context){flex-direction:column;align-items:flex-start;gap:4px}
.menu-link-context{font:14px/1.5 Arial,sans-serif;color:#696962;text-transform:none;letter-spacing:0}
/* V27.1: menu-only polish; headings act as destinations without repetition. */
.share-header #main-nav .menu-group h2{margin:0 0 6px;min-height:0;font:600 16px/1.4 Arial,sans-serif;letter-spacing:.035em}
.share-header #main-nav .menu-group h2 a{font:inherit;letter-spacing:inherit;min-height:44px;padding:4px 0;display:flex;align-items:center}
.share-header #main-nav .menu-group-description{margin:0 0 6px;font-size:14px;line-height:1.5}
.share-header #main-nav .menu-primary-links a{font-weight:600;padding:6px 0;min-height:44px}
.share-header #main-nav .menu-secondary-links{display:flex;flex-wrap:wrap;gap:0 18px}
.share-header #main-nav .menu-secondary-links a{font:14px/1.4 Arial,sans-serif;font-weight:400;min-height:44px;padding:6px 0;text-transform:none}
.share-header #main-nav .menu-secondary-label{font:12px/1.4 Arial,sans-serif;letter-spacing:.055em;color:#696962;margin:8px 0 0}
.share-header #main-nav .menu-group[data-priority="secondary"]{background:transparent;border-color:transparent;padding-top:12px;padding-bottom:12px}
.share-header #main-nav .menu-group[data-priority="secondary"] h2{font-size:14px;color:#696962}
@media(max-width:980px){.share-header #main-nav .menu-group{padding:12px 16px}.share-header #main-nav .menu-primary-links{grid-template-columns:minmax(0,1fr)}.share-header #main-nav .menu-secondary-links a{flex:0 1 auto;min-width:0}.share-header #main-nav .menu-group-description{overflow-wrap:normal}.share-header #main-nav .menu-group[data-priority="secondary"]{padding:8px 16px}}
/* V30.1 MENU button only — decorative icons follow existing aria-expanded state. */
.share-header .menu-toggle{display:inline-flex;align-items:center;justify-content:center;gap:8px;flex-shrink:0;width:106px;height:44px;min-height:44px;padding:0 14px;background:#242424;color:#fff;border:1px solid #242424;border-radius:5px;font-size:14px;line-height:1;text-transform:uppercase;white-space:nowrap}
.share-header .menu-toggle::before{content:"";display:block;flex:0 0 16px;width:16px;height:16px;background:center/16px 16px no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M1 3h14M1 8h14M1 13h14' fill='none' stroke='white' stroke-width='1.5'/%3E%3C/svg%3E")}
.share-header .menu-toggle[aria-expanded="true"]::before{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3 3l10 10M13 3L3 13' fill='none' stroke='white' stroke-width='1.5'/%3E%3C/svg%3E")}
.share-header .menu-toggle:focus-visible{outline:3px solid #9a6139;outline-offset:3px}
@media(min-width:981px) and (max-width:1400px){.share-header .header-inner{width:calc(100% - 80px)}.share-header .header-actions{gap:10px}}
@media(max-width:430px){.share-header .menu-toggle{width:102px;padding:0 12px}}

/* V31-B3.1 public navigation and Knowledge polish. */
.knowledge-destinations{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 40px}
.knowledge-destination{display:block;min-width:0;min-height:44px;padding:28px 0;border-top:1px solid #c9c6bd;text-decoration:none}
.knowledge-destination h2{font-size:clamp(22px,2.3vw,30px);line-height:1.3;margin:0 0 12px;overflow-wrap:anywhere}
.knowledge-destination p{font-size:16px;line-height:1.6;margin:0;color:#696962}
.knowledge-destination:hover h2{text-decoration:underline;text-underline-offset:5px}
.knowledge-destination:focus-visible,.knowledge-production-context a:focus-visible{outline:2px solid #242424;outline-offset:6px}
.knowledge-production-context{margin:24px 0 0;font-size:16px;line-height:1.6}
.knowledge-production-context a{display:inline-flex;align-items:center;min-height:44px;text-decoration:underline}
.share-header #main-nav .menu-group-description{margin-bottom:4px}
@media(max-width:980px){
 .knowledge-destinations{grid-template-columns:minmax(0,1fr);gap:8px}
 .knowledge-destination{padding:24px 0}
 .share-header #main-nav{padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px));padding-bottom:calc(24px + env(safe-area-inset-bottom,0px));scroll-padding-block:16px;overflow-x:hidden;-webkit-overflow-scrolling:touch}
 .menu-is-open .share-header #main-nav{bottom:0;height:calc(100dvh - var(--header-height));max-height:calc(100dvh - var(--header-height))}
 .share-header #main-nav .menu-group h2 a{white-space:normal;overflow-wrap:anywhere}
 .share-header .header-inner{padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px)}
}