.zsa-th-header {position:relative;margin-bottom:28px;}
.zsa-th-topline {display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;padding:0 0 20px;border-bottom:1px solid #dde4ed;}
.zsa-th-identity {display:flex;align-items:center;gap:12px;min-width:0;flex:1 1 400px;}
.metals .zsa-th-brand {display:inline-flex;align-items:center;flex-shrink:0;min-height:52px;min-width:52px;text-decoration:none;color:var(--zsa-navy);}
.zsa-th-brand img {display:block;flex-shrink:0;}
.zsa-th-header-tools {display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:16px;max-width:100%;margin-left:auto;}
.zsa-th-header-buttons {display:flex;align-items:center;gap:8px;}
.metals .zsa-th-share-toggle {display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 12px;min-height:44px;background:white;}
.zsa-th-icon {width:18px;height:18px;flex-shrink:0;}
.zsa-th-instructions-open {flex-shrink:0;}
.metals h1 {min-width:0;font-size:clamp(1.6rem,1.2rem + 1.2vw,2rem);letter-spacing:-.035em;line-height:1.15;margin:0;font-weight:650;}
.zsa-th-lede {color:var(--zsa-navy);font-size:clamp(1.05rem,1rem + .3vw,1.2rem);font-weight:500;}
.zsa-th-share-panel {margin-top:14px;padding:20px;border:1px solid #cdd9e9;border-radius:12px;background:white;box-shadow:0 7px 20px rgba(11,42,91,.06);}
.zsa-th-share-heading {display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:5px;}
.zsa-th-share-heading h2 {font-size:18px;font-weight:600;}
.metals .zsa-th-icon-button {display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;border:1px solid #d5deea;border-radius:8px;background:#f7f9fc;color:#425a7b;font-size:24px;padding:0;line-height:1;}
.metals .zsa-th-fullscreen-toggle {width:46px;min-width:46px;height:46px;min-height:46px;flex-shrink:0;background:white;}
.metals .zsa-th-fullscreen-toggle[hidden] {display:none;}
.zsa-th-fullscreen-toggle[aria-pressed="true"] {background:#edf4ff;border-color:#194d9d;}
.metals .zsa-th-fullscreen-status {margin-top:12px;}
.zsa-th-share-label {display:block;margin:14px 0 6px;font-size:12px;font-weight:600;color:#536075;}
.zsa-th-share-link {display:flex;gap:8px;align-items:stretch;}
.zsa-th-share-link input {display:block;flex:1 1 200px;min-width:0;min-height:46px;width:100%;border:1px solid #b8c8dc;border-radius:8px;padding:9px 11px;background:#f8fafd;color:#334e72;font-size:13px;}
.zsa-th-share-options {display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin-top:12px;}
.zsa-th-share-options a {display:inline-flex;align-items:center;justify-content:center;gap:7px;min-width:44px;min-height:44px;padding:8px 12px;border:1px solid #d8e1ed;border-radius:8px;color:#355579;font-size:13px;text-decoration:none;background:white;}
.zsa-th-share-options a:hover {background:#f0f5fd;}
.zsa-th-share-status {min-height:21px;margin-top:10px!important;font-size:12px;color:#38623e;}
.zsa-th-instructions {width:calc(100% - 32px);max-width:720px;max-height:85vh;overflow:auto;padding:24px;border:1px solid #c5d3e4;border-radius:15px;background:white;color:var(--zsa-slate);box-shadow:0 18px 60px rgba(11,42,91,.2);font-size:15px;line-height:1.6;}
.zsa-th-instructions::backdrop {background:rgba(11,27,51,.45);}
.zsa-th-instructions-heading {display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:14px;}
.zsa-th-instructions-heading h2 {font-size:23px;line-height:1.25;font-weight:600;}
.zsa-th-instructions-heading button {flex-shrink:0;}
.zsa-th-instructions-steps {margin:18px 0;padding-left:23px;}
.zsa-th-instructions-steps li {padding-left:4px;margin:12px 0;}
.zsa-th-instructions-example {padding:15px 17px;border:1px solid #d6e2f2;border-radius:10px;background:#f5f8fd;}
.zsa-th-instructions-example-label {font-size:11px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#536782;}
.zsa-th-instructions-equation {margin:6px 0 13px!important;color:var(--zsa-navy);font-size:22px;line-height:1.5;}
.zsa-th-instructions-equation:last-child {margin-bottom:0!important;}
.zsa-th-instructions-equation sub,.zsa-th-instructions-steps sub {font-size:.7em;line-height:0;vertical-align:-.2em;}
.zsa-th-instructions-equation sup,.zsa-th-instructions-steps sup {font-size:.7em;line-height:0;vertical-align:.4em;}
.zsa-th-instructions-note {margin-top:16px!important;font-size:13px;color:#536075;}


body{background:#edf2f7}.metals{max-width:1440px;padding:28px 36px;color:#40546b;background:#f6f8fb}.metals [hidden]{display:none!important}.metals h1{font-size:clamp(1.2rem,2vw,1.8rem)}.metals h2,.metals h3{color:#102d4f}.metals h3{margin:0;font-size:19px}.lab-links{display:flex;justify-content:space-between;font-size:11px;padding-top:16px}.lab-links a{color:#526d85}.intro{display:flex;justify-content:space-between;gap:20px;padding:27px 0}.intro h2{font-size:30px;letter-spacing:-.04em;margin:6px 0}.intro p{margin:0;font-size:14px}.zsa-eyebrow,.card-label{font-size:10px!important;letter-spacing:.14em;color:#58748a}.live-tag,.sample-badge{align-self:center;font-size:10px;padding:9px 12px;border-radius:20px;background:#e5f3ed;color:#236959;white-space:nowrap}.spring-workspace{display:grid;grid-template-columns:260px minmax(0,1fr);gap:22px}.setup,.experiment{display:grid;gap:20px;align-content:start}.panel,.bench-card{background:white;border:1px solid #dce5ef;border-radius:14px;padding:22px}.card-label{margin:0 0 9px}.metals label{display:block;font-size:12px;font-weight:600;margin:21px 0 8px}.metals select{width:100%;min-height:44px;border:1px solid #c9d7e5;border-radius:8px;padding:8px;background:#f8fafc;color:#28455f;font:inherit;font-size:13px}.metals input[type=range]{width:100%;accent-color:#187566;min-height:28px}.metals output{float:right;color:#187566}.mass-actions{display:flex;gap:8px}.mass-actions button{flex:1}.metals .zsa-btn{min-height:44px;border-radius:8px;font-size:12px}.metals .zsa-btn--primary{background:#187566;border-color:#187566;color:white}.wide{width:100%;margin-top:14px}.small{font-size:12px;line-height:1.65;color:#526b80}.check{display:flex!important;gap:9px;align-items:center}.check input{width:20px;height:20px;accent-color:#187566}.bench-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}.scene{border-radius:10px;overflow:hidden;background:#183142}.scene-topline{display:flex;justify-content:space-between;gap:15px;padding:15px 19px;color:#bdced7;font-size:9px;letter-spacing:.07em}.scene svg{display:block;width:100%;max-height:540px}.transport{display:flex;gap:8px;align-items:center;flex-wrap:wrap;background:#eef3f6;padding:13px}.transport label{margin:0 0 0 auto}.transport select{width:auto}.readouts{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding-top:20px}.readouts span{display:block;font-size:10px;color:#60778b}.readouts strong{display:block;font-size:18px;margin-top:7px;color:#183c59;font-variant-numeric:tabular-nums}.graph-panel svg{width:100%;display:block}.model-note{font-size:12px;line-height:1.7;margin-top:24px;padding:18px;border:1px solid #dce5ef;border-radius:12px}.model-note summary{cursor:pointer;min-height:30px}.zsa-footer{font-size:11px;color:#60778b;padding:25px 0}#hanger{cursor:grab;touch-action:none}#hanger:focus{outline:none}#hanger:focus-visible>rect{stroke:#f5ce76;stroke-width:3}.metals button:focus-visible,.metals input:focus-visible,.metals select:focus-visible,.metals a:focus-visible,.metals summary:focus-visible{outline:3px solid #387ee0;outline-offset:3px}button:disabled{opacity:.5}.metals .zsa-th-brand{display:inline-flex}.metals .zsa-th-identity{flex-basis:450px}
@media(max-width:950px){.spring-workspace{grid-template-columns:220px minmax(0,1fr)}.metals{padding:22px}.panel,.bench-card{padding:16px}.readouts{grid-template-columns:repeat(2,1fr)}.transport label{margin-left:0}.live-tag{display:none}}
@media(max-width:700px){.spring-workspace{display:flex;flex-direction:column}.setup{grid-template-columns:1fr 1fr;width:100%;gap:10px}.experiment{width:100%}.metals{padding:16px}.intro h2{font-size:25px}.scene-topline span:last-child{display:none}.transport{gap:6px}.metals .zsa-th-identity{flex-basis:100%}.graph-panel .bench-heading{flex-wrap:wrap}}
@media(max-width:390px){.setup{grid-template-columns:1fr}.readouts strong{font-size:16px}}