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16px;font-size:1rem}.planet-card{padding:20px}.planet-orb{width:56px;height:56px}.grid{gap:16px}.grid-4{grid-template-columns:1fr 1fr}.grid-3,.grid-2{grid-template-columns:1fr}.article-body{font-size:1.05rem;line-height:1.7}.form-card{max-width:100%}.input{min-height:48px;font-size:1rem}.faq-item summary{min-height:44px;padding:14px 0;font-size:1rem}.hero h1{font-size:1.8rem}.page-head h1{font-size:1.6rem}}@media(max-width:480px){.grid-4{grid-template-columns:1fr}.hero{padding:64px 0 40px}.hero-actions{flex-direction:column;align-items:stretch}.hero-actions .btn{width:100%}.detail-facts{flex-direction:column;gap:16px}.weight-input-row{flex-direction:column;align-items:stretch}.unit-toggle{width:100%}.unit-toggle button{flex:1;text-align:center}}@media(min-width:481px)and (max-width:1024px){.grid-4,.grid-3{grid-template-columns:1fr 1fr}.planet-card{padding:18px}}.faq-list{margin-top:32px;display:flex;flex-direction:column;gap:12px}.faq-item{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:4px 22px;transition:border-color .2s ease}.faq-item[open]{border-color:var(--border)}.faq-item summary{cursor:pointer;padding:18px 32px 18px 0;font-weight:600;color:var(--text);list-style:none;position:relative}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";position:absolute;right:0;color:var(--primary);font-size:1.4rem;line-height:1;transition:transform .2s ease}.faq-item[open] summary:after{transform:rotate(45deg)}.faq-item p{padding:0 0 18px;color:var(--text-muted)}.form-card{max-width:520px;margin:0 auto}.detail-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:20px;align-items:start}.detail-form-card h3,.detail-stats-card h3{margin-bottom:4px}.detail-facts{display:flex;flex-wrap:wrap;gap:24px;margin-top:18px}@media(max-width:760px){.detail-grid{grid-template-columns:1fr}}.article{padding:56px 0 40px}.article .lead{margin-top:14px}.article-body{margin-top:32px;max-width:70ch}.article-body h2{font-family:var(--font-sans);font-size:1.2rem;font-weight:600;color:var(--text);margin:32px 0 10px;letter-spacing:.02em}.article-body p{margin-bottom:16px}.quick-answer{margin:28px 0;max-width:70ch}.formula-card code{display:block;margin-top:12px;font-family:SFMono-Regular,Menlo,Consolas,monospace;font-size:.95rem;color:var(--primary-soft);background:var(--bg);padding:14px 16px;border-radius:10px;overflow-x:auto}.formula-card,.example-card{max-width:70ch}.example-card{margin-top:16px}.footnotes{margin-top:40px;padding-top:24px;border-top:1px solid var(--border-soft);max-width:70ch}.footnotes h3{font-family:var(--font-sans);font-size:1rem;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:.1em;margin-bottom:12px}.footnotes ol{list-style:none;padding:0;counter-reset:none}.footnotes li{font-size:.82rem;color:var(--text-dim);line-height:1.6;margin-bottom:8px}.fn-number{font-weight:600;color:var(--text-muted);margin-right:4px}.moon-display{display:flex;align-items:center;gap:18px;margin-top:18px}.moon-display.big{justify-content:center;gap:24px}.moon-emoji{font-size:3rem;line-height:1}.moon-emoji.big{font-size:4.5rem}.moon-name{font-family:var(--font-serif);font-size:1.6rem;color:var(--text)}.moon-name.big{font-size:2.2rem}.moon-sub{color:var(--text-dim);font-size:.9rem}.weight-input-row{display:flex;gap:16px;align-items:flex-end}.unit-toggle{display:inline-flex;border:1px solid var(--border);border-radius:12px;overflow:hidden}.unit-toggle button{padding:14px 20px;color:var(--text-muted);font-weight:600;transition:background .2s ease,color .2s ease}.unit-toggle button.is-active{background:var(--primary);color:#1a1408}@media(max-width:560px){.weight-input-row{flex-direction:column;align-items:stretch}}