.gp-page{--gp-bg:#f2ece0;--gp-card:#fbf8ef;--gp-field:#f5efe1;--gp-panel:#f0e9da;--gp-border:#dbd3c2;--gp-hair:#ede5d4;--gp-panel-border:#e2dac8;--gp-text:#1b1e1a;--gp-heading:#16352b;--gp-fld-text:#16352b;--gp-muted:#8c8b7c;--gp-label:#3a3b33;--gp-sub:#5a5b4f;--gp-sub2:#6b6a5e;--gp-brass:#a57c2b;--gp-brass-hero:#c79a46;--gp-brass-card-border:#e4cb94;--gp-brass-off:#b99a6a;--gp-banner-bg:#16352b0d;--gp-banner-border:#cbd8ce;--gp-banner-accent:#16352b;--gp-banner-text:#3e4a42;--gp-total-bg:#0f241d;--gp-total-sub:#a6ac9b;--gp-ctrl-bg:#16352b;--gp-ctrl-text:#f2ece0;--gp-seg-off-text:#6b6a5e;--gp-purity-off-border:#cfc6b2;--gp-toggle-off:#c9c0ad;--gp-knob:#fbf8ef;--gp-focus:#16352b47;color-scheme:light dark;background:var(--gp-bg);color:var(--gp-text);-webkit-font-smoothing:antialiased;min-height:100vh;margin:0;font-family:IBM Plex Sans Variable,IBM Plex Sans,system-ui,sans-serif}@media (prefers-color-scheme:dark){.gp-page{--gp-bg:#1b1e1a;--gp-card:#2e2f27;--gp-field:#3a3b33;--gp-panel:#3a3b33;--gp-border:#4a4b41;--gp-hair:#3f4038;--gp-panel-border:#4a4b41;--gp-text:#ede7d8;--gp-heading:#ede7d8;--gp-fld-text:#ede7d8;--gp-muted:#cfcfbe;--gp-label:#cfcfbe;--gp-sub:#b7b6a8;--gp-sub2:#b7b6a8;--gp-brass:#c79a46;--gp-brass-hero:#c79a46;--gp-brass-card-border:#6b5827;--gp-brass-off:#8c7a52;--gp-banner-bg:#c79a4614;--gp-banner-border:#3e4a42;--gp-banner-accent:#c79a46;--gp-banner-text:#cfcfbe;--gp-total-bg:#16352b;--gp-total-sub:#9fa595;--gp-ctrl-bg:#16352b;--gp-ctrl-text:#f2ece0;--gp-seg-off-text:#cfcfbe;--gp-purity-off-border:#4a4b41;--gp-toggle-off:#4a4b41;--gp-knob:#ede7d8;--gp-focus:#c79a4666}}.gp-page *{box-sizing:border-box}.gp-page .num{font-variant-numeric:tabular-nums;font-family:IBM Plex Mono,ui-monospace,monospace}.gp-page .mono{font-family:IBM Plex Mono,ui-monospace,monospace}.gp-page ::selection{background:var(--gp-heading);color:var(--gp-bg)}.gp-page a{color:var(--gp-brass)}.gp-page a:hover{color:var(--gp-heading)}.gp-title{max-width:1180px;margin:0 auto;padding:44px 24px 6px}.gp-crumb{color:var(--gp-muted);margin-bottom:16px;font-family:IBM Plex Mono,ui-monospace,monospace;font-size:12px}.gp-crumb span{color:var(--gp-heading)}.gp-title h1{letter-spacing:-.02em;color:var(--gp-text);margin:0 0 10px;font-family:Newsreader Variable,Newsreader,Georgia,serif;font-size:44px;font-weight:500;line-height:1.05}.gp-lede{color:var(--gp-sub);max-width:620px;margin:0;font-size:17px;line-height:1.55}.gp-tool{max-width:1180px;margin:0 auto;padding:26px 24px 56px}.gp-layout{grid-template-columns:360px 1fr;align-items:start;gap:26px;display:grid}@media (width<=940px){.gp-layout{grid-template-columns:1fr}.gp-inputs{position:static!important}}.gp-inputs{background:var(--gp-card);border:1px solid var(--gp-border);border-radius:14px;padding:22px;position:sticky;top:24px}.gp-inputs-title{color:var(--gp-heading);margin:0 0 18px;font-size:14px;font-weight:600}.gp-field-group{flex-direction:column;gap:18px;display:flex}.gp-field-head{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.gp-field-head label,.gp-field-label{color:var(--gp-label);font-size:13px;font-weight:500}.gp-field-label{margin-bottom:8px;display:block}.gp-field-meta{color:var(--gp-muted);font-size:11px}.gp-seg{background:var(--gp-panel);border:1px solid var(--gp-panel-border);border-radius:8px;gap:3px;padding:3px;display:flex}.gp-seg-btn{cursor:pointer;white-space:nowrap;color:var(--gp-seg-off-text);background:0 0;border:none;border-radius:6px;padding:6px 10px;font-family:IBM Plex Mono,ui-monospace,monospace;font-size:12px;font-weight:600}.gp-seg-btn.on{background:var(--gp-ctrl-bg);color:var(--gp-ctrl-text)}.gp-input-wrap{position:relative}.gp-fld{background:var(--gp-field);border:1px solid var(--gp-border);font-variant-numeric:tabular-nums;width:100%;color:var(--gp-fld-text);border-radius:10px;padding:12px 15px;font-family:IBM Plex Mono,ui-monospace,monospace;font-size:18px;font-weight:600}.gp-fld-sm{padding:9px 26px 9px 11px;font-size:15px}.gp-fld::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.gp-fld::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.gp-fld[type=number]{appearance:textfield}.gp-fld:focus-visible,.gp-page button:focus-visible{box-shadow:0 0 0 3px var(--gp-focus);outline:none}.gp-input-prefix{color:var(--gp-muted);font-size:16px;position:absolute;top:50%;left:15px;transform:translateY(-50%)}.gp-input-suffix{color:var(--gp-muted);font-size:13px;position:absolute;top:50%;right:15px;transform:translateY(-50%)}.gp-input-suffix-sm{font-size:13px;right:11px}.gp-hint{color:var(--gp-muted);margin-top:6px;font-family:IBM Plex Sans Variable,IBM Plex Sans,system-ui,sans-serif;font-size:11.5px}.gp-hint-brass{color:var(--gp-brass);margin-top:5px}.gp-hint-small{margin-top:7px;font-size:11px}.gp-purity-grid{grid-template-columns:repeat(4,1fr);gap:7px;display:grid}.gp-purity{cursor:pointer;border:1px solid var(--gp-purity-off-border);background:var(--gp-field);color:var(--gp-label);border-radius:9px;flex-direction:column;align-items:center;gap:1px;padding:10px 4px;display:flex}.gp-purity.on{border-color:var(--gp-ctrl-bg);background:var(--gp-ctrl-bg);color:var(--gp-ctrl-text)}.gp-purity-k{font-family:IBM Plex Mono,ui-monospace,monospace;font-size:14px;font-weight:600}.gp-purity-pct{opacity:.72;font-family:IBM Plex Mono,ui-monospace,monospace;font-size:10px}.gp-gst{background:var(--gp-field);border:1px solid var(--gp-border);border-radius:11px;padding:13px 15px}.gp-gst-head{justify-content:space-between;align-items:center;display:flex}.gp-gst-title{color:var(--gp-heading);font-size:13.5px;font-weight:600}.gp-gst-grid{grid-template-columns:1fr 1fr;gap:9px;margin-top:13px;display:grid}.gp-gst-label{color:var(--gp-label);margin-bottom:5px;font-size:11.5px;font-weight:500;display:block}.gp-toggle{cursor:pointer;background:var(--gp-toggle-off);border:none;border-radius:100px;flex-shrink:0;width:44px;height:26px;transition:background .18s;position:relative}.gp-toggle.on{background:var(--gp-ctrl-bg)}.gp-knob{background:var(--gp-knob);border-radius:50%;width:20px;height:20px;transition:left .18s;position:absolute;top:3px;left:3px;box-shadow:0 1px 2px #00000040}.gp-toggle.on .gp-knob{left:21px}.gp-outputs{flex-direction:column;gap:18px;display:flex}.gp-banner{background:var(--gp-banner-bg);border:1px solid var(--gp-banner-border);border-left:4px solid var(--gp-banner-accent);border-radius:11px;align-items:flex-start;gap:14px;padding:16px 18px;display:flex}.gp-banner-glyph{color:var(--gp-banner-accent);font-family:IBM Plex Mono,ui-monospace,monospace;font-size:16px;font-weight:600;line-height:1.4}.gp-banner p{color:var(--gp-banner-text);margin:0;font-size:14px;line-height:1.55}.gp-total{background:var(--gp-total-bg);text-align:center;border-radius:16px;padding:30px 32px;position:relative;overflow:hidden}.gp-total-glow{background:radial-gradient(70% 60% at 82% 0,#c79a4638,#0000 62%);position:absolute;inset:0}.gp-total-inner{position:relative}.gp-total-label{letter-spacing:.08em;color:#c79a46;margin-bottom:12px;font-size:11px}.gp-total-value{letter-spacing:-.02em;color:#c79a46;font-size:56px;font-weight:600;line-height:1}.gp-total-sub{color:var(--gp-total-sub);margin-top:10px;font-size:14px}.gp-metrics{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}@media (width<=620px){.gp-metrics{grid-template-columns:1fr}}.gp-metric{background:var(--gp-card);border:1px solid var(--gp-brass-card-border);border-radius:12px;padding:16px 17px;box-shadow:inset 0 0 0 1px #a57c2b29}.gp-metric-label{letter-spacing:.04em;color:var(--gp-muted);text-transform:uppercase;margin-bottom:9px;font-size:10.5px}.gp-metric-value{letter-spacing:-.01em;color:var(--gp-brass);font-size:23px;font-weight:600}.gp-metric.off .gp-metric-value{color:var(--gp-brass-off)}.gp-metric-sub{color:var(--gp-sub2);margin-top:8px;font-size:12px;line-height:1.4}.gp-breakdown{background:var(--gp-card);border:1px solid var(--gp-border);border-radius:14px;padding:8px 22px}.gp-row{border-bottom:1px solid var(--gp-hair);justify-content:space-between;align-items:center;gap:14px;padding:14px 0;display:flex}.gp-row-total{border-bottom:none;padding:16px 0 14px}.gp-row-label{color:var(--gp-text);font-size:14px;font-weight:500}.gp-row-label.off{color:var(--gp-text);opacity:.7}.gp-row-label.brass{color:var(--gp-brass);font-weight:600}.gp-row-sub{color:var(--gp-muted);margin-top:2px;font-size:11.5px}.gp-row-value{color:var(--gp-text);font-size:15px;font-weight:500}.gp-row-value.off{color:var(--gp-brass-off)}.gp-row-value.brass{color:var(--gp-brass);font-size:17px;font-weight:600}.gp-explainer{background:var(--gp-card);border:1px solid var(--gp-border);border-radius:14px;padding:24px 26px}.gp-explainer h3{color:var(--gp-heading);margin:0 0 10px;font-family:Newsreader Variable,Newsreader,Georgia,serif;font-size:21px;font-weight:600}.gp-formula{color:var(--gp-heading);background:var(--gp-field);border-radius:8px;margin-bottom:14px;padding:15px 18px;font-size:14.5px;line-height:1.7}.gp-explainer p{color:var(--gp-label);margin:0;font-size:15px;line-height:1.7}.gp-footer{color:#ede7d8;text-align:center;background:#0f241d;padding:22px 24px}.gp-footer p{margin:0;font-size:14px}.gp-footer a{color:#f5f0e2;font-weight:600;text-decoration:none}.gp-footer a:hover{color:#c79a46}