/* Bexar Emissions Guide – plain CSS, no framework */
:root{
  --ink:#1c2430; --muted:#5a6575; --line:#dde3ea; --bg:#f6f8fa; --card:#fff;
  --brand:#0b5d8f; --brand-ink:#fff; --accent:#0f7b6c;
  --yes:#b3261e; --yes-bg:#fdecea; --no:#1e7a3a; --no-bg:#e8f5ec; --warn:#8a5a00; --warn-bg:#fff6e0;
  --radius:12px; --max:780px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand)} a:hover{text-decoration-thickness:2px}
img{max-width:100%;height:auto}
.wrap{max-width:var(--max);margin:0 auto;padding:0 18px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:9}
header.site{background:var(--brand);color:var(--brand-ink)}
header.site .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px 16px;padding-top:12px;padding-bottom:12px}
.logo{color:#fff;text-decoration:none;font-weight:700;font-size:1.05rem;letter-spacing:.2px}
.logo span{opacity:.8;font-weight:500}
nav.main{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:.92rem}
nav.main a{color:#e6f1f8;text-decoration:none}
nav.main a:hover,nav.main a[aria-current=page]{color:#fff;text-decoration:underline}
.notice{background:#fff6e0;border-bottom:1px solid #f0dca8;font-size:.92rem}
.notice .wrap{padding-top:8px;padding-bottom:8px}
main{padding:22px 0 10px}
h1{font-size:1.75rem;line-height:1.25;margin:.2em 0 .5em}
h2{font-size:1.3rem;margin:1.6em 0 .5em;line-height:1.3}
h3{font-size:1.08rem;margin:1.2em 0 .4em}
p,ul,ol{margin:.5em 0 .9em}
li{margin:.25em 0}
.lead{font-size:1.1rem;color:#2b3542}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 10px;margin:16px 0}
.answer{border-left:5px solid var(--brand)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
@media (max-width:640px){.grid2{grid-template-columns:1fr} h1{font-size:1.5rem} body{font-size:16.5px}}
label{display:block;font-weight:600;margin:10px 0 4px;font-size:.95rem}
select,input[type=number]{width:100%;font:inherit;padding:10px 12px;border:1px solid #b9c3cf;border-radius:9px;background:#fff;color:var(--ink)}
select:focus,input:focus,button:focus{outline:3px solid #9cc9e8;outline-offset:1px}
.check{display:flex;align-items:center;gap:8px;font-weight:500;margin:10px 0}
.check input{width:20px;height:20px;flex:none}
button.btn{font:inherit;font-weight:700;background:var(--accent);color:#fff;border:0;border-radius:10px;padding:12px 18px;margin:14px 0 8px;cursor:pointer;width:100%}
button.btn:hover{filter:brightness(1.07)}
.hint{color:var(--muted);font-size:.88rem;margin:2px 0 0}
.result{border-radius:var(--radius);padding:16px 18px;margin:14px 0 6px;border:1px solid var(--line)}
.result h3{margin:0 0 .35em;font-size:1.2rem}
.result.yes{background:var(--yes-bg);border-color:#f3c2bd}.result.yes h3{color:var(--yes)}
.result.no{background:var(--no-bg);border-color:#bfe3ca}.result.no h3{color:var(--no)}
.result.maybe{background:var(--warn-bg);border-color:#f0dca8}.result.maybe h3{color:var(--warn)}
.result ul{margin:.3em 0 .5em;padding-left:1.2em}
.result .src{font-size:.85rem;color:var(--muted)}
table{border-collapse:collapse;width:100%;font-size:.95rem;background:#fff}
th,td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left;vertical-align:top}
td.num,th.num{text-align:right;white-space:nowrap}
tr.total td{font-weight:700;border-top:2px solid var(--ink)}
.callout{background:#eef6fb;border:1px solid #cfe3f1;border-radius:var(--radius);padding:12px 16px;margin:14px 0}
.callout.warn{background:var(--warn-bg);border-color:#f0dca8}
.unclear{background:#f3eefb;border:1px dashed #b9a6dc;border-radius:10px;padding:10px 14px;margin:12px 0;font-size:.95rem}
.unclear strong:first-child{color:#5b3b94}
.affiliate{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;margin:16px 0}
.affiliate .disclosure{font-size:.85rem;color:var(--muted);border-top:1px solid var(--line);padding-top:8px;margin-top:10px}
a.shop{display:inline-block;background:#232f3e;color:#fff;text-decoration:none;font-weight:700;padding:10px 14px;border-radius:9px;margin:4px 0}
.sources{font-size:.9rem;color:#33404f;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px 16px;margin:26px 0 8px}
.sources h2{font-size:1rem;margin:.2em 0 .4em}
.sources ol{padding-left:1.25em;margin:.3em 0}
.updated{font-size:.85rem;color:var(--muted)}
details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:8px 0}
details summary{font-weight:700;cursor:pointer}
footer.site{border-top:1px solid var(--line);background:#fff;margin-top:30px;font-size:.88rem;color:var(--muted)}
footer.site .wrap{padding-top:18px;padding-bottom:26px}
footer.site nav{display:flex;flex-wrap:wrap;gap:4px 14px;margin:6px 0 10px}
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:4px}
.crumbs a{color:var(--muted)}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:14px 0}
.facts div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:.92rem}
.facts b{display:block;font-size:1.15rem;color:var(--brand)}
@media (max-width:640px){.facts{grid-template-columns:1fr 1fr}}
/* Ad placeholders: hidden until real ad code is added */
.ad-slot{display:none}