.metal-tool .column-page{min-width:0;padding-bottom:24px;overflow-wrap:anywhere}
.metal-tool .column-title h1{margin:4px 0 12px;font-size:1.4rem}
.metal-tool .column-scope{margin:10px 0 16px;padding:12px 14px;border-left:3px solid var(--accent);background:#edf6f5;color:#36575d;font-size:.8rem;line-height:1.7}
.metal-tool .column-panel,.metal-tool .column-evidence{min-width:0;margin:12px 0;padding:16px;border:1px solid var(--line);border-radius:8px;background:#fff}
.metal-tool .column-panel h2{font-size:1rem;margin:0 0 12px}
.metal-tool .column-page label{display:block;min-width:0;font-size:.82rem;font-weight:700}
.metal-tool .column-page input,.metal-tool .column-page select{box-sizing:border-box;display:block;width:100%;min-width:0;max-width:100%;min-height:44px;margin-top:5px;padding:9px;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--ink);font:inherit}
.metal-tool .column-page input[aria-invalid="true"]{border-color:#9c562d}
.metal-tool .column-selection{max-width:540px}
.metal-tool .column-page .family-tabs button{min-height:44px}
.metal-tool .column-inputs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.metal-tool .column-field-error{display:block;margin-top:5px;color:#923e22;font-size:.75rem;font-weight:500;overflow-wrap:anywhere}
.metal-tool .column-field-error[hidden]{display:none}
.metal-tool .column-buckling-zone>h3{font-size:.95rem;margin:18px 0 8px}
.metal-tool .column-buckling-result .column-primary{grid-template-columns:repeat(2,minmax(0,1fr))}
.metal-tool .column-neighbors{display:flex;flex-wrap:wrap;gap:10px;margin:10px 0 16px}
.metal-tool .column-neighbors button{min-height:44px;padding:8px 12px;border:1px solid var(--line);border-radius:5px;background:#f5f9f9;color:var(--accent-dark);font:inherit;cursor:pointer}
.metal-tool .column-neighbors button:disabled{opacity:.45;cursor:default}
.metal-tool .column-page :is(a,button,input,select,summary):focus-visible,.metal-tool .column-scope:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.metal-tool .column-muted{margin:9px 0;color:var(--muted);font-size:.76rem;line-height:1.65}
.metal-tool .column-results-zone{margin-top:22px;border-top:4px solid var(--accent)}
.metal-tool .column-condition-summary{padding:8px 10px;background:#f1f7f7;color:#36575d;font-size:.77rem;line-height:1.7}
.metal-tool .column-page dl{margin:0}
.metal-tool .column-page dt{font-size:.8rem;color:var(--muted)}
.metal-tool .column-page dd{margin:4px 0 0;font-variant-numeric:tabular-nums}
.metal-tool .column-page dd small{font-size:.7em;font-weight:500}
.metal-tool .column-primary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding:12px 0}
.metal-tool .column-primary dd{font-size:clamp(1.25rem,3vw,1.9rem);font-weight:800;color:var(--accent-dark)}
.metal-tool .column-axis-results,.metal-tool .column-euler dl,.metal-tool .column-mass{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding:10px 0}
.metal-tool .column-axis-results dd,.metal-tool .column-euler dd{font-size:1.1rem;font-weight:700}
.metal-tool .column-euler{margin:12px 0;padding:12px;background:#f4f8f8;border-radius:6px}
.metal-tool .column-euler h3{margin:0;font-size:.95rem}
.metal-tool .column-euler h3 span{display:inline-block;margin-left:8px;font-size:.76rem;color:var(--muted);font-weight:500}
.metal-tool .column-mass{border-top:1px solid var(--line);font-size:.85rem}
.metal-tool .column-message{padding:12px;background:#f3f7f7;line-height:1.7}
.metal-tool .column-compare-head,.metal-tool .column-compare-row{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,.65fr) minmax(0,1fr) minmax(0,1fr);gap:10px;align-items:center;padding:10px}
.metal-tool .column-comparison--buckling :is(.column-compare-head,.column-compare-row){grid-template-columns:minmax(0,2fr) minmax(0,.65fr) repeat(4,minmax(0,1fr))}
.metal-tool .column-compare-head{font-size:.71rem;color:var(--muted);background:#f4f7f7}
.metal-tool .column-compare-row{box-sizing:border-box;width:100%;min-width:0;min-height:48px;border:0;border-bottom:1px solid var(--line);background:#fff;color:var(--ink);font:inherit;font-size:.8rem;text-align:left;cursor:pointer;transition:background-color 160ms ease}
.metal-tool .column-compare-row>span{min-width:0;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
.metal-tool .column-compare-row>span:not(:first-child),.metal-tool .column-compare-head>span:not(:first-child){text-align:right}
.metal-tool .column-compare-name{font-weight:700}
.metal-tool .column-compare-name small{display:block;color:var(--accent-dark);font-size:.68rem}
.metal-tool .column-compare-row[aria-pressed="true"]{background:#deefed;box-shadow:inset 3px 0 var(--accent);font-weight:700}
@media(hover:hover) and (pointer:fine){.metal-tool .column-compare-row:not([aria-pressed="true"]):hover{background:#edf6f5}}
.metal-tool .column-compare-row:active{background:#deefed}
.metal-tool .column-evidence summary{cursor:pointer;min-height:32px;font-weight:700;color:var(--accent-dark)}
.metal-tool .column-evidence>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:12px;font-size:.8rem;line-height:1.7}
.metal-tool .column-evidence h3{font-size:.85rem;margin:0 0 6px}
.metal-tool .column-evidence p{margin:5px 0}
@media(max-width:800px){.metal-tool .column-inputs{grid-template-columns:repeat(2,minmax(0,1fr))}
.metal-tool .column-evidence>div{grid-template-columns:minmax(0,1fr)}}
@media(max-width:600px){.metal-tool .column-panel,.metal-tool .column-evidence{padding:12px}
.metal-tool .column-primary{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.metal-tool .column-primary>div:first-child{grid-column:1/-1}
.metal-tool .column-inputs{gap:10px}
.metal-tool .column-page label{font-size:.76rem}
.metal-tool .column-compare-head,.metal-tool .column-compare-euler,.metal-tool .column-euler-comparison-note{display:none}
.metal-tool .column-compare-row{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px 10px;padding:10px 8px}
.metal-tool .column-compare-name{grid-column:1/-1}
.metal-tool .column-comparison--buckling .column-compare-row{grid-template-columns:repeat(2,minmax(0,1fr))}
.metal-tool .column-compare-lambda{order:1}
.metal-tool .column-compare-mass{order:2}
.metal-tool .column-compare-weight{order:3}
.metal-tool .column-compare-row>span:not(:first-child){text-align:left}
.metal-tool .column-compare-row [data-label]::before{content:attr(data-label);display:block;color:var(--muted);font-size:.65rem;font-weight:400}
.metal-tool .column-compare-name small{display:inline-block;margin-left:8px}
.metal-tool .column-euler h3 span{display:block;margin:4px 0 0}}
@media(max-width:390px){.metal-tool .column-compare-row{padding:6px 8px;row-gap:4px}}
@media(prefers-reduced-motion:reduce){.metal-tool .column-page *{transition:none!important;scroll-behavior:auto!important}}