/* Panel Upgrade Sudbury — light industrial. Steel-blue / safety-orange / off-white.
   Barlow (headings) + Source Sans 3 (body). Skeleton intentionally distinct from
   Kingston (dark professional, Inter/Source Serif) and Hamilton (charcoal/amber, Archivo/Manrope). */

:root{
  --steel:#33526b;
  --steel-deep:#243b4f;
  --steel-wash:#e3eaef;
  --safety:#e8590c;
  --safety-hot:#f76707;
  --off:#f5f3ee;
  --card:#ffffff;
  --ink:#20303c;
  --slate:#5a6a76;
  --line:#d5dade;
  --ok:#2b7a3d;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Source Sans 3",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:17px;line-height:1.62;color:var(--ink);background:var(--off);
}
h1,h2,h3,.wordmark,.btn,.navbar a,.sec-no{font-family:"Barlow",system-ui,sans-serif}
h1{font-size:clamp(1.7rem,4.4vw,2.6rem);font-weight:800;line-height:1.14;letter-spacing:-.01em}
h2{font-size:clamp(1.3rem,3vw,1.8rem);font-weight:700;line-height:1.2;margin:0 0 .7rem}
h3{font-size:1.12rem;font-weight:700;margin:1.1rem 0 .35rem}
p{margin:0 0 1rem}
a{color:var(--steel);text-decoration-thickness:1px;text-underline-offset:2px}
a:hover{color:var(--safety)}
ul,ol{margin:0 0 1rem 1.3rem}
li{margin-bottom:.35rem}
strong{font-weight:700}

/* hazard stripe */
.hazard{height:8px;background:repeating-linear-gradient(135deg,var(--safety) 0 14px,var(--steel-deep) 14px 28px)}

/* utility strip */
.util{background:var(--steel-deep);color:#cfdbe4;font-size:.85rem;padding:.42rem 1rem;display:flex;gap:1rem;justify-content:space-between;flex-wrap:wrap}
.util span b{color:#fff;font-weight:600}

/* header */
header.site{background:var(--card);border-bottom:1px solid var(--line);padding:.85rem 1rem}
.head-in{max-width:1080px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none}
.mark{width:38px;height:38px;background:var(--safety);color:#fff;display:flex;align-items:center;justify-content:center;font-family:"Barlow";font-weight:800;font-size:1.3rem;flex:0 0 auto}
.wordmark{color:var(--ink);font-weight:800;font-size:1.18rem;line-height:1.1;letter-spacing:.02em;text-transform:uppercase}
.wordmark small{display:block;font-weight:600;font-size:.68rem;color:var(--slate);letter-spacing:.14em}
.btn{display:inline-block;background:var(--safety);color:#fff;font-weight:700;font-size:1.02rem;padding:.68rem 1.15rem;text-decoration:none;border:none;cursor:pointer;letter-spacing:.02em}
.btn:hover{background:var(--safety-hot);color:#fff}
.btn.ghost{background:transparent;color:var(--steel);border:2px solid var(--steel)}
.btn.ghost:hover{border-color:var(--safety);color:var(--safety)}

/* navbar */
.navbar{background:var(--steel);overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
.navbar div{max-width:1080px;margin:0 auto;padding:0 .5rem}
.navbar a{display:inline-block;color:#e8eef3;text-decoration:none;text-transform:uppercase;font-weight:600;font-size:.82rem;letter-spacing:.07em;padding:.72rem .7rem}
.navbar a:hover,.navbar a.on{background:var(--steel-deep);color:#fff}

/* layout */
main{max-width:1080px;margin:0 auto;padding:0 1rem}
article{max-width:820px}

/* hero */
.hero{padding:2.3rem 0 1.6rem;border-bottom:2px solid var(--steel)}
.hero p.lede{font-size:1.12rem;color:var(--ink);max-width:800px;margin:.9rem 0 1.1rem}
.hero .cta-row{display:flex;gap:.7rem;flex-wrap:wrap;align-items:center;margin-bottom:.6rem}
.tag{display:inline-block;background:var(--steel-wash);color:var(--steel-deep);font-size:.8rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;padding:.25rem .6rem;margin-bottom:.8rem}
.assure{font-size:.9rem;color:var(--slate)}

/* numbered problem-first sections */
.num-sec{padding:1.9rem 0 .6rem;border-bottom:1px solid var(--line)}
.sec-no{display:inline-block;color:var(--safety);font-weight:800;font-size:1rem;letter-spacing:.12em;margin-bottom:.25rem}
.num-sec:last-of-type{border-bottom:none}

/* spec table */
table.spec{width:100%;border-collapse:collapse;margin:1rem 0 1.3rem;background:var(--card);font-size:.97rem}
table.spec th{background:var(--steel);color:#fff;text-align:left;font-family:"Barlow";font-weight:700;letter-spacing:.03em;padding:.55rem .7rem}
table.spec td{border:1px solid var(--line);padding:.55rem .7rem;vertical-align:top}
table.spec tr td:first-child{font-weight:600}

/* callouts */
.check-callout{border:2px dashed var(--safety);background:#fff8f3;padding:1rem 1.1rem;margin:1.1rem 0}
.check-callout h3{margin-top:0}
.note{border-left:4px solid var(--steel);background:var(--steel-wash);padding:.8rem 1rem;margin:1.1rem 0;font-size:.95rem}

/* cta strip */
.cta-strip{background:var(--steel-deep);color:#fff;margin:1.6rem 0;padding:1.1rem 1.2rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.cta-strip p{margin:0;font-size:1.05rem;font-weight:600}

/* work-order form */
.wo{background:var(--card);border:2px solid var(--steel);margin:1.4rem 0}
.wo .wo-head{background:var(--steel);color:#fff;padding:.7rem 1rem;font-family:"Barlow";font-weight:700;letter-spacing:.05em;text-transform:uppercase;font-size:.95rem}
.wo form{padding:1.1rem 1rem;display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
.wo label{font-size:.85rem;font-weight:700;color:var(--steel-deep);display:block;margin-bottom:.2rem;letter-spacing:.03em}
.wo input,.wo select,.wo textarea{width:100%;padding:.66rem .6rem;border:1px solid var(--line);background:var(--off);font:inherit;font-size:1rem}
.wo .full{grid-column:1/-1}
.wo .fine{font-size:.8rem;color:var(--slate);margin:0}
@media(max-width:640px){.wo form{grid-template-columns:1fr}}

/* faq */
.faq{margin:1.2rem 0 2rem}
.faq details{background:var(--card);border:1px solid var(--line);margin-bottom:.5rem;padding:.75rem .95rem}
.faq summary{font-family:"Barlow";font-weight:700;font-size:1.02rem;cursor:pointer;color:var(--steel-deep)}
.faq details[open] summary{color:var(--safety)}
.faq details p{margin:.6rem 0 0}

/* footer */
footer.site{background:var(--steel-deep);color:#c3d0da;margin-top:2.5rem;font-size:.92rem}
.foot-in{max-width:1080px;margin:0 auto;padding:1.8rem 1rem;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.4rem}
footer.site h3{color:#fff;font-size:.9rem;text-transform:uppercase;letter-spacing:.1em;margin:0 0 .5rem}
footer.site a{color:#c3d0da}
footer.site a:hover{color:var(--safety-hot)}
footer.site ul{list-style:none;margin:0}
.legal{border-top:1px solid #3a5064;padding:1rem;text-align:center;font-size:.85rem;color:#9fb1bf;max-width:1080px;margin:0 auto}

/* misc */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
@media(max-width:720px){.two-col{grid-template-columns:1fr}}
.pill-list{list-style:none;margin:0 0 1rem;display:flex;flex-wrap:wrap;gap:.45rem}
.pill-list li{background:var(--steel-wash);color:var(--steel-deep);font-weight:600;font-size:.88rem;padding:.3rem .7rem;margin:0}

/* ---- mobile overflow guard (2026-08-22): stop horizontal panning on phones ---- */
html,body{max-width:100%;overflow-x:hidden}
img,svg,video,iframe{max-width:100%;height:auto}
@media(max-width:760px){
  *{min-width:0}
  table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  h1,h2,h3,p,li,td,th{overflow-wrap:break-word}
}

/* ---- sticky mobile call bar ---- */
.stickycall{display:none;position:fixed;bottom:0;left:0;right:0;background:var(--steel-deep);padding:.6rem .8rem;z-index:50;gap:.6rem}
.stickycall a{flex:1;text-align:center;padding:.65rem 0;font-size:.95rem;font-weight:700;text-decoration:none;border-radius:9px}
.stickycall .sc-call{background:var(--safety);color:#fff}
.stickycall .sc-quote{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55)}
@media(max-width:700px){.stickycall{display:flex}body{padding-bottom:64px}}