.tools-intro{max-width:820px;margin-bottom:2.5rem}.tools-intro h1,.tool-heading h1{margin-bottom:1rem}.tools-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem}.tool-card{min-width:0;display:flex;flex-direction:column;padding:1.5rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface-2)}.tool-card h2{font-size:1.35rem}.tool-card h2 a{text-decoration:none}.tool-card>p:not(.eyebrow){color:var(--muted)}.tool-card .button{align-self:flex-start;margin-top:auto}.tool-heading{max-width:850px;margin-bottom:2rem}.tool-calculator{padding:clamp(1rem,3vw,2rem);border:1px solid var(--border);border-radius:var(--radius);background:var(--surface-2)}.tool-form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.tool-form-grid--shared{grid-template-columns:repeat(3,minmax(0,1fr))}.tool-fieldset{min-width:0;margin:0 0 1.25rem;padding:1rem;border:1px solid var(--border);border-radius:var(--radius-sm)}.tool-fieldset>legend{padding:0 .4rem;font-weight:750}.energy-columns{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.energy-columns .tool-form-grid{grid-template-columns:1fr 1fr}.tool-actions{display:flex;align-items:center;gap:.7rem;flex-wrap:wrap;margin:1.5rem 0}.tool-error{padding:.8rem 1rem;border-left:4px solid var(--danger);background:color-mix(in srgb,var(--danger) 8%,transparent);color:var(--danger)}.tool-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.8rem;margin:1.5rem 0}.tool-results>div{min-width:0;padding:1rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface)}.tool-results dt{margin-bottom:.4rem;color:var(--muted);font-size:.78rem}.tool-results dd{margin:0;font-size:1.15rem;font-weight:750}.tool-results output{display:block}.tool-note{max-width:90ch;margin-bottom:0;color:var(--muted);font-size:.84rem}.custom-tool-shell{overflow:hidden;border:1px solid var(--border);border-radius:var(--radius);background:#fff}.custom-tool-frame{display:block;width:100%;height:75vh;min-height:620px;border:0;background:#fff}.custom-tool-shell+.tool-note{margin-top:.75rem}@media(max-width:1000px){.tools-grid,.tool-results{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-form-grid,.tool-form-grid--shared{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:680px){.tools-grid,.tool-form-grid,.tool-form-grid--shared,.tool-results,.energy-columns,.energy-columns .tool-form-grid{grid-template-columns:1fr}.tool-calculator{padding:1rem}.tool-actions .button:not(.button--small){width:100%}.custom-tool-frame{height:80vh;min-height:540px}}@media print{.tool-calculator{padding:0;border:0;background:#fff}.tool-actions,.tool-note,.breadcrumbs{display:none!important}.tool-results{grid-template-columns:repeat(3,1fr)}.tool-results>div{break-inside:avoid;border-color:#bbb;background:#fff}.tool-results dt{color:#333}.energy-columns{display:none}.tool-fieldset{display:none}}