.carbon-tool{padding:2rem}.tool-input{background:#fff;border:1px solid #cbd5e1;border-radius:.875rem;width:100%;padding:.875rem 1rem;font-size:18px;font-weight:600}.tool-input:focus{border-color:#60a5fa;outline:2px solid #93c5fd}.carbon-result-card{color:#334155;background:#fff;border:1px solid #e2e8f0;border-radius:1rem;padding:1.25rem}.carbon-result-card.error{color:#991b1b;background:#fff1f2;border-color:#fecaca}.carbon-result-card.muted{opacity:.75}.carbon-metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;display:grid}.carbon-metric-card{background:#fff;border:1px solid #e2e8f0;border-radius:1.25rem;min-width:0;padding:1.25rem;box-shadow:0 12px 30px #0f172a14}.carbon-metric-card.primary{background:#eff6ff;border-color:#bfdbfe}.carbon-metric-card span,.carbon-metric-card small{color:#64748b;display:block}.carbon-metric-card span{font-size:.875rem;font-weight:700}.carbon-metric-card strong{color:#0f172a;margin-top:.5rem;font-size:clamp(1.75rem,4vw,2.25rem);line-height:1.1;display:block}.carbon-metric-card small{margin-top:.65rem;font-size:.8125rem;line-height:1.45}.carbon-rating{border-radius:999px;justify-content:center;align-items:center;width:3.25rem;height:3.25rem;color:#fff!important;font-size:2rem!important;display:inline-flex!important}.carbon-rating-a,.carbon-rating-b{background:#16a34a}.carbon-rating-c{background:#ca8a04}.carbon-rating-d,.carbon-rating-e{background:#ea580c}.carbon-rating-f{background:#dc2626}.carbon-breakdown-card{color:#334155;background:#fff;border:1px solid #e2e8f0;border-radius:1.25rem;margin-top:1.25rem;padding:1.5rem}.carbon-breakdown-card h3{color:#0f172a;margin:0;font-size:1.5rem;line-height:1.2}.carbon-breakdown-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem;margin-top:1.25rem;display:grid}.carbon-breakdown-grid>div{background:#f8fafc;border:1px solid #e2e8f0;border-radius:.875rem;padding:.9rem 1rem}.carbon-breakdown-grid>div:last-child:nth-child(odd){grid-column:1/-1}.carbon-breakdown-grid dt{color:#64748b;font-size:.8125rem;font-weight:700;line-height:1.35}.carbon-breakdown-grid dd{color:#0f172a;margin:.3rem 0 0;font-size:1.05rem;font-weight:800;line-height:1.35}.carbon-methodology{color:#334155;background:#eff6ff;border-radius:.875rem;margin-top:1rem;padding:1rem}.carbon-methodology strong{color:#1e3a8a;font-size:.875rem;display:block}.carbon-methodology p{margin:.35rem 0 0;font-size:.875rem;line-height:1.6}@media (width<=640px){.carbon-tool{padding:1.25rem}.carbon-metric-grid,.carbon-breakdown-grid{grid-template-columns:1fr}.carbon-breakdown-grid>div:last-child:nth-child(odd){grid-column:auto}.carbon-metric-card,.carbon-breakdown-card{padding:1.1rem}}