.gas{--gas-accent:#2f6b8a}
.gas header .brand{display:block;font-size:1.2rem;line-height:1.1}.by-kumyu{display:block;font-size:.72rem;font-weight:400;letter-spacing:.08em;margin-top:.4rem;color:var(--muted)}
.gas header nav{gap:1.2rem}.gas header nav a{font-size:.85rem}
.gas footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;padding:2rem 0;margin-top:4rem;border-top:1px solid var(--line);font-size:.85rem}.gas footer nav{display:flex;flex-wrap:wrap;gap:1.2rem}
.gas main{max-width:880px;margin:0 auto}
.gas .eyebrow{font-size:.75rem;letter-spacing:.1em;color:var(--muted)}
.page-heading{padding:3rem 0 1rem}.page-heading h1,.article-header h1{font-size:clamp(1.8rem,3.6vw,2.6rem);font-weight:500;line-height:1.45;margin:.6rem 0}.page-heading p,.deck{line-height:1.9}.deck{color:var(--muted)}
.article-date,.gas-source{font-size:.78rem;color:var(--muted);line-height:1.8}
.gas a{text-underline-offset:3px;overflow-wrap:anywhere}.article-body a,.article-sources a,.gas-source a,.gas-next a{color:var(--gas-accent)}
.ad-disclosure{border:1px solid var(--line);background:var(--soft);padding:.9rem 1rem;font-size:.85rem;line-height:1.8;margin:1.5rem 0}
.gas-answer,.gas-answer-box p{font-size:1.05rem;line-height:1.95}
.gas-answer-box{border-left:4px solid var(--gas-accent);background:var(--soft);padding:1rem 1.4rem;margin:2rem 0}.gas-answer-box h2{font-size:1rem;margin:0}
.article-toc{margin:2rem 0;padding:1rem 1.4rem;border:1px solid var(--line);border-radius:8px}.article-toc summary{cursor:pointer;font-weight:600;font-size:.9rem}.article-toc ol{font-size:.85rem;line-height:1.8}
.article-body{line-height:2}.article-body h2,.gas-faq>h2,.gas-ctas>h2,.gas-assumptions h2,.gas main section>h2{font-size:1.4rem;font-weight:500;margin:3rem 0 1rem;padding-top:1.8rem;border-top:1px solid var(--line)}
.gas-faq h3{font-size:1.02rem;margin:1.6rem 0 .4rem}.gas-faq p{line-height:1.9;margin:0}
.table-scroll{max-width:100%;overflow:auto;margin:1.5rem 0}.table-scroll table{border-collapse:collapse;width:100%;min-width:520px;font-size:.88rem;line-height:1.7}.table-scroll th,.table-scroll td{text-align:left;vertical-align:top;padding:.65rem .8rem;border-bottom:1px solid var(--line)}.table-scroll thead th,.table-scroll tbody th{background:var(--soft);font-weight:500}
.gas-prices td{text-align:right;font-variant-numeric:tabular-nums}.gas-prices caption{text-align:left;font-size:.85rem;color:var(--muted);padding-bottom:.5rem}
.gas-form{display:grid;gap:1rem;padding:1.5rem;border:1px solid var(--line);border-radius:8px;margin:1.5rem 0}.gas-form label{display:grid;gap:.35rem;font-size:.9rem}.gas-form fieldset{border:0;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:1rem}.gas-form fieldset label,.gas-housing label{display:flex;align-items:center;gap:.4rem;min-height:44px}.gas-form legend,.gas-housing legend{font-size:.9rem;margin-bottom:.4rem}
.gas-housing{border:0;padding:0;margin:0 0 1rem;display:flex;flex-wrap:wrap;gap:1rem}.gas-housing legend{width:100%}
.gas-offer,.gas-rental-guide{margin:1.5rem 0;padding:1.2rem 1.4rem;border:1px solid var(--line);border-radius:8px}.gas-rental-guide li,.gas-offer p{line-height:1.9}
.gas-form input:not([type=radio]),.gas-form select{font:inherit;min-height:44px;padding:.4rem .6rem;border:1px solid var(--line);border-radius:4px;background:var(--paper);color:var(--ink);max-width:22rem}
.gas-form button,.gas-cta{display:inline-block;font:inherit;background:var(--ink);color:var(--paper);border:0;border-radius:4px;padding:.8rem 1.2rem;min-height:44px;text-decoration:none;cursor:pointer;justify-self:start}
.gas-result{padding:1.4rem;border:2px solid var(--gas-accent);border-radius:8px;margin:1rem 0}.gas-figure{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.5rem;margin:.3rem 0}.gas-figure strong{font-size:1.25rem;font-variant-numeric:tabular-nums}.gas-verdict{font-size:1.05rem;line-height:1.9;font-weight:600}.gas-note,.gas-warning{font-size:.85rem;line-height:1.8}.gas-warning{color:#9a4a1c}
.gas-assumptions li{line-height:1.9;margin:.4rem 0}
.gas-ctas ul{list-style:none;padding:0;display:grid;gap:.8rem}.gas-order-note{font-size:.8rem;color:var(--muted)}
.article-sources ul{list-style:none;padding:0;display:grid;gap:.5rem}.article-sources li{padding:.9rem 1.1rem;background:var(--soft);border-radius:6px;font-size:.9rem;line-height:1.7}.article-sources li span{display:block;font-size:.75rem;color:var(--muted);margin-top:.3rem}
.article-row{padding:1.4rem 0;border-top:1px solid var(--line)}.article-row h2{font-size:1.15rem;font-weight:500;margin:0 0 .4rem}.article-row p{margin:0;color:var(--muted);line-height:1.85}
.policy-page{padding:3rem 0;line-height:2}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .gas{--gas-accent:#8cc3e0}:root:not([data-theme=light]) .gas-warning{color:#f0a070}}
:root[data-theme=dark] .gas{--gas-accent:#8cc3e0}:root[data-theme=dark] .gas-warning{color:#f0a070}
@media (max-width:720px){.wrap{padding:0 20px}.gas header{flex-wrap:wrap;min-height:auto;padding:1rem 0}.gas-figure strong{font-size:1.1rem}}
.gas main .gas-answer-box>h2{font-size:1rem;margin:0;padding:0;border:0}
.gas .article-body blockquote{margin:1.25rem 0;padding:.75rem 1rem;border-left:3px solid currentColor;opacity:.92}
.gas .gas-quotes{display:grid;gap:.75rem;margin:1.25rem 0}
.gas .gas-quote{margin:0;padding:.85rem 1rem;border:1px solid color-mix(in srgb,currentColor 25%,transparent);border-radius:8px}
.gas .gas-quote blockquote{margin:0 0 .5rem;padding:0;border:0}
.gas .gas-quote figcaption{font-size:.85em;opacity:.8}
.gas .gas-author ul{padding-left:1.2rem}