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var(--sans);margin-bottom:6px;color:var(--muted)}.mm-section-heading select{min-height:44px;max-width:100%;font:12px/1.4 var(--sans);padding:10px 28px 10px 10px;border:1px solid var(--line);border-radius:3px;background:var(--bg);color:var(--ink)}.mm-chart-context{font-size:12px;color:var(--muted);line-height:1.7;margin:18px 0 30px;max-width:90ch}.mh-plot{position:relative;min-width:0;height:290px;padding:0 0 30px 79px;margin-top:15px}.mh-plot svg{display:block;width:100%;height:260px;overflow:visible}.mh-y-labels{position:absolute;left:0;top:-7px;bottom:23px;display:flex;flex-direction:column;justify-content:space-between;font:10px/1.4 var(--mono);font-variant-numeric:tabular-nums;width:70px;text-align:right;color:var(--muted)}.mh-x-labels{display:flex;justify-content:space-between;gap:20px;font:10px/1.4 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@media(max-width:900px){.mm-hero{grid-template-columns:minmax(0,1fr) 180px;gap:30px}.mm-element-study{padding:18px}.mm-element-study>strong{font-size:68px}.mm-intro{font-size:16px}.mm-hub-card{padding:22px;gap:16px}.mm-collector-feature{gap:30px}.mm-history{padding:24px}.mm-hub-reading>div{grid-template-columns:1fr;gap:8px}}
@media(max-width:600px){.metal-market-guide{padding-top:25px;padding-bottom:50px}.mm-hero{display:flex;flex-direction:column-reverse;gap:25px;align-items:stretch;padding:12px 0 30px}.mm-element-study{width:110px;align-self:flex-start;padding:9px}.mm-element-study>strong{font-size:46px}.mm-study-number{font-size:8px}.mm-study-name{font-size:13px;margin:0 0 5px}.mm-element-study>small{font-size:7px}.mm-hero h1,.mm-hub-hero h1{font-size:38px}.mm-premium-study{display:none}.mm-live-reference{grid-template-columns:1fr;gap:12px;padding:20px 0}.mm-live-reference strong{font-size:27px}.mm-live-reference p{font-size:11px}.mm-index{margin-bottom:35px;gap:0 15px}.mm-index a{font-size:11px}.mm-reading p,.mm-reading li{font-size:15px}.mm-timeline>ol>li{grid-template-columns:1fr;gap:8px}.mm-timeline li p{font-size:14px}.mm-history{padding:18px 12px;margin:45px 0}.mm-section-heading{display:block}.mm-section-heading [data-history-controls]{margin-top:16px}.mm-section-heading select{width:100%}.mm-chart-context{font-size:11px;margin-bottom:24px}.mh-plot{height:250px;padding-left:63px}.mh-plot svg{height:220px}.mh-y-labels{width:57px;bottom:23px;font-size:9px}.mh-x-labels{font-size:9px}.mh-summary{font-size:11px}.mh-connection,.mh-definition-note{font-size:10px}.mm-history h2{font-size:28px}.mm-related ul,.mm-hub-grid{grid-template-columns:1fr}.mm-hub-hero{padding:20px 0 35px}.mm-hub-lede{font-size:16px}.mm-collector-feature{grid-template-columns:1fr;gap:25px;padding:30px 0}.mm-hub-card{padding:22px 18px}.mm-hub-reading{padding-top:45px}.mm-related{padding-top:35px}.mm-data-table th,.mm-data-table td{padding:9px 7px;font-size:11px}}
@media(prefers-reduced-motion:reduce){.metal-market-guide *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media(forced-colors:active){.mm-element-study,.mm-premium-study,.mm-value-layers{background:Canvas;border-color:CanvasText}.mh-line,.mh-point{stroke:CanvasText}.mh-grid,.mh-break{stroke:GrayText}.mm-history,.mm-related a,.mm-hub-card{border-color:CanvasText}}

.mm-source-years{display:block;margin:6px 0 14px}.mm-data-table td:last-child a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;font-size:10px}.mm-source-list li:target{background:var(--surface)}

/* Four-metal editorial edition. Shared hub and premiums layouts stay intact. */
html:has(.mm-metal-page){scroll-padding-top:0}
.mm-metal-page{--mm-tone:#446b79;--mm-wash:#e7eff1;--mm-header-height:148px;--mm-nav-height:0px}
.mm-metal-page[data-metal="gold"]{--mm-tone:#897029;--mm-wash:#f2eddd}
.mm-metal-page[data-metal="platinum"]{--mm-tone:#716386;--mm-wash:#eeeaf3}
.mm-metal-page[data-metal="palladium"]{--mm-tone:#7c685a;--mm-wash:#eee8e2}
.mm-metal-page .mm-hero{grid-template-columns:minmax(0,1fr) 265px;gap:clamp(30px,5vw,75px);padding:12px 0 36px;border-bottom:0}
.mm-metal-page .mm-hero h1{font-size:clamp(40px,4.5vw,62px);margin-bottom:20px}
.mm-metal-page .mm-intro{font-size:16px;line-height:1.8}
.mm-metal-page .mm-intro p{margin:0 0 16px}
.mm-metal-page .mm-collector-context{font-size:13px;padding-left:14px}
.mm-periodic-tile{position:relative;aspect-ratio:1;margin:0;isolation:isolate;background:#d4d9dc;color:#182426;border:1px solid #8c979b;box-shadow:0 10px 28px #14272a15;overflow:hidden}
.mm-element-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.mm-element-face{height:100%;display:flex;flex-direction:column;align-items:center;padding:17px;position:relative;z-index:1}
.mm-element-face:before{content:"";position:absolute;inset:8px;border:1px solid #172b332c;pointer-events:none}
.mm-element-top{align-self:stretch;display:flex;justify-content:space-between;align-items:start}
.mm-element-top b{display:block;font:500 25px/1 var(--sans);font-variant-numeric:tabular-nums}
.mm-element-top small{display:block;font:8px/1.5 var(--mono);margin-top:5px;text-transform:uppercase;letter-spacing:.02em}
.mm-element-top img{display:block;width:34px;height:30px}
.mm-element-symbol{font:500 91px/1.08 var(--sans);letter-spacing:-.055em;margin-top:1px}
.mm-element-name{font:500 19px/1.3 var(--sans);letter-spacing:.025em}
.mm-element-weight{font:500 16px/1.4 var(--mono);margin-top:8px;text-align:center}
.mm-element-weight small{display:block;font:8px/1.4 var(--mono);font-weight:400;letter-spacing:.01em}
.mm-element-imprint{font:7px/1.4 var(--mono);letter-spacing:.16em;margin-top:auto;padding-top:12px}
.mm-metal-switcher{display:flex;justify-content:space-between;align-items:center;gap:20px;border-block:1px solid var(--line);padding:12px 0;margin-bottom:35px}
.mm-metal-switcher>span{font:10px/1.5 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.mm-metal-switcher>div{display:flex;gap:7px}
.mm-metal-switcher a{display:flex;align-items:center;gap:9px;min-height:44px;padding:8px 14px;font:500 12px/1.5 var(--sans);border:1px solid transparent;border-radius:2px;white-space:nowrap}
.mm-metal-switcher a>span{font:500 18px/1 var(--sans);min-width:22px;text-align:center;letter-spacing:-.04em}
.mm-metal-switcher a:hover{border-color:var(--line);background:var(--surface)}
.mm-metal-switcher a[aria-current="page"]{border-color:var(--mm-tone);background:var(--mm-wash);color:#273335}
.mm-guide-layout{display:grid;grid-template-columns:168px minmax(0,1fr);align-items:start;gap:40px}
.mm-guide-content{min-width:0}
.mm-guide-nav{position:sticky;top:calc(var(--mm-header-height) + 22px);max-height:calc(100dvh - var(--mm-header-height) - 44px);overflow:auto;scrollbar-width:thin;overscroll-behavior:contain;padding-bottom:4px}
.mm-nav-heading{display:block;font:10px/1.5 var(--mono);letter-spacing:.09em;text-transform:uppercase;color:var(--muted);padding:2px 12px 14px}
.mm-nav-links{display:flex;flex-direction:column;border-left:1px solid var(--line)}
.mm-nav-links a{display:flex;align-items:center;min-height:44px;padding:9px 12px;border-left:2px solid transparent;margin-left:-1px;font:12px/1.45 var(--sans);color:var(--muted);text-decoration:none}
.mm-nav-links a:hover{color:var(--ink);background:var(--surface)}
.mm-nav-links a[aria-current="location"]{color:var(--ink);border-color:var(--mm-tone);background:var(--surface);font-weight:600}
.mm-metal-page a:focus-visible,.mm-metal-page summary:focus-visible,.mm-metal-page select:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.mm-metal-page :is(.mm-story-section,.mm-timeline,.mm-faq,.mm-sources,.mm-history,.mm-source-method,.mm-source-list li){scroll-margin-top:calc(var(--mm-header-height) + var(--mm-nav-height) + 24px)}
.mm-metal-page .mm-reading{width:100%;max-width:780px;margin:0}
.mm-metal-page .mm-story-section{margin-bottom:43px}
.mm-metal-page .mm-story-section+.mm-story-section{padding-top:34px;border-top:1px solid var(--line)}
.mm-metal-page .mm-reading p{font-size:16px;line-height:1.9}
.mm-metal-page .mm-history{margin:0 0 45px;padding:28px;border:1px solid var(--line);border-top:3px solid var(--mm-tone);border-radius:0;background:var(--surface)}
.mm-metal-page .mm-section-heading{gap:18px}
.mm-metal-page .mm-history h2{font-size:clamp(25px,2.7vw,34px);line-height:1.1}
.mm-metal-page .mm-section-heading .mm-kicker{font-size:9px;letter-spacing:.14em;color:var(--mm-tone);margin-bottom:9px}
.mm-metal-page .mm-section-heading select{font-size:11px;padding-right:20px}
.mm-metal-page .mm-chart-context{font-size:11px;line-height:1.7;margin:18px 0 27px}
.mm-metal-page .mh-plot{height:275px;padding-left:72px;padding-bottom:30px;margin-top:25px}
.mm-metal-page .mh-plot svg{height:245px}
.mm-metal-page .mh-y-labels{width:63px;font-size:9px}
.mm-metal-page .mh-grid{stroke:var(--line);stroke-dasharray:2 4}
.mm-metal-page .mh-line{stroke:var(--mm-tone);stroke-width:2.3;stroke-linecap:round}
.mm-metal-page .mh-point{fill:var(--mm-tone)}
.mm-metal-page .mh-summary{font-size:12px;line-height:1.7;padding:12px 0;margin-top:11px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}
.mm-metal-page .mh-connection,.mm-metal-page .mh-definition-note{font-size:10px;line-height:1.7}
.mm-metal-page .mm-table-disclosure{margin-top:15px}
.mm-metal-page .mm-table-disclosure summary{font-size:12px;min-height:44px;padding:12px 0}
.mm-chart-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:16px}
.mm-chart-signature{display:flex;align-items:center;gap:8px;flex-shrink:0;font:500 11px/1.4 var(--sans)}
.mm-chart-signature img{display:block;width:26px;height:23px}
.mm-chart-signature small{display:block;font:8px/1.5 var(--mono);letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
.mm-chart-footer p{font:9px/1.8 var(--sans);text-align:right;margin:0;color:var(--muted);max-width:35ch}
.mm-chart-footer a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.mm-metal-page .mm-sources{border-block:1px solid var(--line);margin-top:30px;background:var(--surface)}
.mm-metal-page .mm-sources summary{padding:18px 20px}
.mm-metal-page .mm-sources summary h2{font-size:23px}
.mm-metal-page .mm-sources summary>span{display:block;font:11px/1.6 var(--sans);color:var(--muted);margin:7px 0 0 20px}
.mm-sources-body{padding:0 22px 22px}
.mm-sources-body>p,.mm-sources-body li,.mm-sources-body .mm-source-method p{font-size:12px!important;line-height:1.8!important;color:var(--muted);overflow-wrap:anywhere}
.mm-sources-body h3{font:500 18px/1.3 var(--serif);color:var(--ink);margin:25px 0 18px}
.mm-source-use{display:block;font:10px/1.6 var(--sans);margin-top:3px;color:var(--muted)}
.mm-source-method{border-top:1px solid var(--line);padding-top:8px;margin-top:25px}
[data-theme="dark"] .mm-metal-page{--mm-tone:#97bcc7;--mm-wash:#e7eff1}
[data-theme="dark"] .mm-metal-page[data-metal="gold"]{--mm-tone:#d7bd77}
[data-theme="dark"] .mm-metal-page[data-metal="platinum"]{--mm-tone:#b7a6d1}
[data-theme="dark"] .mm-metal-page[data-metal="palladium"]{--mm-tone:#c6ad97}
[data-theme="dark"] .mm-chart-signature img{filter:invert(1)}
@media(max-width:1050px){
 .mm-metal-page .mm-hero{grid-template-columns:minmax(0,1fr) 235px;gap:35px}
 .mm-element-symbol{font-size:78px}.mm-element-name{font-size:18px}.mm-element-weight{font-size:14px}.mm-element-top b{font-size:21px}.mm-element-imprint{font-size:6px;padding-top:8px}
 .mm-guide-layout{display:block}.mm-guide-nav{position:sticky;top:var(--mm-header-height);z-index:20;max-height:none;overflow:visible;background:var(--bg);border-block:1px solid var(--line);padding:5px 0;margin:0 0 25px}
 .mm-nav-heading{display:none}.mm-nav-links{flex-direction:row;overflow-x:auto;scrollbar-width:thin;overscroll-behavior-x:contain;gap:5px;border:0;padding:2px 0;scroll-padding-inline:4px}
 .mm-nav-links a{white-space:nowrap;flex-shrink:0;min-height:44px;padding:10px 13px;border:1px solid transparent;margin:0;border-radius:2px;font-size:12px}
 .mm-nav-links a[aria-current="location"]{border-color:var(--line);border-bottom-color:var(--mm-tone)}
 .mm-metal-page .mm-reading{max-width:780px;margin-inline:auto}.mm-metal-switcher{margin-bottom:18px}.mm-guide-content{max-width:900px;margin-inline:auto}
}
@media(max-width:650px){
 .mm-metal-page .breadcrumbs{margin-bottom:20px}.mm-metal-page .mm-hero{display:grid;grid-template-columns:1fr;gap:24px;padding:0 0 28px}
 .mm-metal-page .mm-hero>div{order:2}.mm-periodic-tile{width:185px;justify-self:center;order:1}
 .mm-element-face{padding:13px}.mm-element-face:before{inset:6px}.mm-element-top b{font-size:17px}.mm-element-top small{font-size:6px;margin-top:3px}.mm-element-top img{width:24px;height:21px}
 .mm-element-symbol{font-size:63px;line-height:1;margin-top:1px}.mm-element-name{font-size:15px;line-height:1.25}.mm-element-weight{font-size:12px;margin-top:5px}.mm-element-weight small{font-size:6px}.mm-element-imprint{font-size:5px;padding-top:8px}
 .mm-metal-page .mm-hero h1{font-size:39px}.mm-metal-page .mm-intro{font-size:15px}.mm-metal-page .mm-intro p{margin-bottom:15px}.mm-metal-page .mm-collector-context{font-size:12px}.mm-metal-page .mm-purpose{font-size:10px;margin-top:18px}
 .mm-metal-switcher{display:block;padding:10px 0}.mm-metal-switcher>span{display:block;font-size:9px;margin-bottom:7px}.mm-metal-switcher>div{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:3px}
 .mm-metal-switcher a{flex-direction:column;gap:5px;padding:8px 2px;min-height:58px;font-size:10px}.mm-metal-switcher a>span{font-size:20px}
 .mm-metal-page .mm-history{padding:20px 14px;margin-bottom:34px}.mm-metal-page .mm-section-heading{display:block}.mm-metal-page .mm-history h2{font-size:28px}
 .mm-metal-page .mm-section-heading [data-history-controls]{margin-top:14px}.mm-metal-page .mm-section-heading label{display:inline;font-size:10px;margin-right:8px}.mm-metal-page .mm-section-heading select{width:auto;max-width:100%;min-height:44px}
 .mm-metal-page .mh-plot{height:240px;padding-left:58px}.mm-metal-page .mh-plot svg{height:210px}.mm-metal-page .mh-y-labels{width:50px;font-size:8px}.mm-metal-page .mh-x-labels{font-size:8px}
 .mm-metal-page .mm-chart-context{font-size:10px;margin-bottom:24px}.mm-metal-page .mh-summary{font-size:11px}.mm-metal-page .mh-connection,.mm-metal-page .mh-definition-note{font-size:10px}
 .mm-chart-footer{gap:12px;align-items:start}.mm-chart-signature{font-size:10px;gap:5px}.mm-chart-signature img{width:22px;height:19px}.mm-chart-signature small{font-size:7px}.mm-chart-footer p{font-size:8px;max-width:27ch}
 .mm-metal-page .mm-reading p{font-size:15px;line-height:1.85}.mm-metal-page .mm-reading h2{font-size:29px}.mm-metal-page .mm-timeline li p{font-size:14px}.mm-metal-page .mm-faq p{font-size:14px}
 .mm-sources-body{padding:0 16px 16px}.mm-metal-page .mm-sources summary{padding:16px}.mm-metal-page .mm-sources summary h2{font-size:22px}.mm-metal-page .mm-sources summary>span{font-size:10px}
}
@media(forced-colors:active){.mm-element-art{display:none}.mm-periodic-tile{background:Canvas;color:CanvasText}.mm-nav-links a[aria-current="location"],.mm-metal-switcher a[aria-current="page"]{border-color:Highlight;color:Highlight}.mm-metal-page .mh-line{stroke:CanvasText}.mm-metal-page .mh-point{fill:CanvasText}.mm-chart-signature img{filter:none}}
@media print{.mm-guide-nav,.mm-metal-switcher{display:none}.mm-guide-layout{display:block}.mm-periodic-tile{break-inside:avoid}.mm-metal-page .mm-history{break-inside:avoid}.mm-metal-page .mm-sources details::details-content{content-visibility:visible}}