:root{--bg:#fffdf8;--ink:#2b2620;--muted:#6b6357;--brand:#c2541f;--card:#fff;--line:#ece5d8;--accent:#fbf4e6}
*{box-sizing:border-box}
body{margin:0;font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg)}
main{max-width:760px;margin:0 auto;padding:0 18px 48px}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:1.9rem;line-height:1.2;margin:.6em 0 .3em}
h2{font-size:1.3rem;margin:1.6em 0 .5em;border-bottom:2px solid var(--line);padding-bottom:.2em}
h3{margin:.4em 0}
.lede{font-size:1.1rem;color:var(--muted)}
.hero{display:block;width:100%;height:auto;max-height:260px;object-fit:cover;border-radius:14px;margin:14px 0 4px;border:1px solid var(--line)}
@media(max-width:520px){.hero{max-height:160px}}
.site-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;max-width:760px;margin:0 auto;padding:14px 18px}
.brand{font-weight:800;font-size:1.2rem;color:var(--ink)}
.site-head nav a{margin-left:14px;font-size:.95rem}
.crumbs{font-size:.85rem;color:var(--muted);margin:.4em 0}
.crumbs a{color:var(--muted)}
/* calculator */
.calc,.calc-oven{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin:16px 0;box-shadow:0 1px 0 rgba(0,0,0,.02)}
.row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.calc input,.calc select,.calc-oven input{font-size:1.1rem;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff}
.calc input{width:100px}
.eq{font-weight:700;color:var(--brand)}
output{font-size:1.25rem;font-weight:700;color:var(--brand);min-width:120px}
/* tables */
table{width:100%;border-collapse:collapse;margin:.5em 0 1em;font-size:.97rem;background:var(--card)}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line)}
th{background:var(--accent)}
tbody tr:hover{background:var(--accent)}
/* lists */
.grid{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:8px}
.grid a{display:block;padding:12px 14px;background:var(--card);border:1px solid var(--line);border-radius:10px;font-weight:600}
.grid small{display:block;color:var(--muted);font-weight:400;font-size:.8rem}
.related{columns:2;padding-left:18px}
/* collapsible category sections (homepage) */
.cat{border-bottom:2px solid var(--line)}
.cat>summary{font-size:1.3rem;font-weight:700;margin:1.1em 0 .5em;padding-bottom:.2em;cursor:pointer;list-style:none;display:flex;align-items:center;gap:8px}
.cat>summary::-webkit-details-marker{display:none}
.cat>summary::before{content:"▸";color:var(--brand);font-size:.85em;transition:transform .15s}
.cat[open]>summary::before{transform:rotate(90deg)}
.cat>summary small{color:var(--muted);font-weight:400;font-size:.78rem}
.cat .grid{margin:0 0 16px}
.filter{width:100%;font-size:1.05rem;padding:12px 14px;border:1px solid var(--line);border-radius:10px;margin:8px 0}
.oven-link{display:inline-block;font-weight:700;padding:10px 0}
/* faq */
.faq dt{font-weight:700;margin-top:.8em}
.faq dd{margin:0 0 .4em}
/* ad + gear */
.ad{margin:18px 0;min-height:90px;display:flex;align-items:center;justify-content:center;background:repeating-linear-gradient(45deg,#faf6ee,#faf6ee 10px,#f3ecdd 10px,#f3ecdd 20px);border:1px dashed #d9cfba;border-radius:10px;color:#b6a98e;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase}
.gear{background:var(--accent);border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin:18px 0}
.gear ul{margin:.3em 0;padding-left:18px}
.gear li{margin:.3em 0}
/* footer */
.site-foot{max-width:760px;margin:24px auto 0;padding:18px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
.disclaimer{font-size:.82rem}
@media(max-width:520px){h1{font-size:1.55rem}.related{columns:1}output{min-width:90px}}