/* Metric Plumbing & Heating — "Precision" identity
   gunmetal charcoal + safety-yellow + steel · Saira (display) + Saira (body)
   industrial/heritage family contractor since 1973 · gauge/grid motif, photo-forward */
@import url('https://fonts.googleapis.com/css2?family=Saira:wght@400;500;600;700&family=Saira+Condensed:wght@600;700;800&display=swap');

:root{
  --steel:#eceef0; --steel-2:#dfe3e7; --card:#ffffff;
  --gun:#23282d; --gun-2:#343b42; --ink:#22262b; --ink-soft:#5a626b; --line:#d3d8de;
  --yellow:#f0b429; --yellow-2:#cf9612; --yellow-soft:#fbeec7;
  --steelblue:#4b6478; --gun-soft:#e6e9ec;
  --maxw:1180px; --r:3px; --r-lg:8px;
  --shadow:0 1px 2px rgba(35,40,45,.07),0 16px 44px rgba(35,40,45,.14);
  --shadow-sm:0 1px 2px rgba(35,40,45,.08),0 6px 18px rgba(35,40,45,.08);
  --disp:'Saira Condensed',Arial Narrow,sans-serif; --sans:'Saira',-apple-system,system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--steel);color:var(--ink);font-family:var(--sans);
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:var(--steelblue);text-decoration:none}
a:hover{color:var(--yellow-2)}
h1,h2,h3,h4{font-family:var(--disp);font-weight:800;line-height:1.02;letter-spacing:.005em;margin:0 0 .5em;color:var(--gun);text-transform:uppercase}
h1{font-size:clamp(2.7rem,6.2vw,4.8rem)}
h2{font-size:clamp(2rem,4vw,3.1rem)}
h3{font-size:1.4rem;font-weight:700}
p{margin:0 0 1.1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--sans);font-size:.76rem;font-weight:700;letter-spacing:.2em;
  text-transform:uppercase;color:var(--yellow-2);margin:0 0 1rem;display:flex;align-items:center;gap:.7rem}
.eyebrow::before{content:"";width:26px;height:3px;background:var(--yellow)}
.eyebrow.c{justify-content:center}
.lede{font-size:1.2rem;color:var(--ink-soft);line-height:1.65}
.muted{color:var(--ink-soft)}
.center{text-align:center}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--disp);font-weight:700;font-size:1.1rem;
  letter-spacing:.03em;text-transform:uppercase;padding:.8rem 1.8rem;border-radius:var(--r);border:2px solid transparent;cursor:pointer;transition:.18s ease}
.btn-primary{background:var(--yellow);color:var(--gun)}
.btn-primary:hover{background:var(--yellow-2);color:#fff;transform:translateY(-1px)}
.btn-gun{background:var(--gun);color:#fff}
.btn-gun:hover{background:var(--gun-2);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--gun);border-color:var(--gun)}
.btn-ghost:hover{background:var(--gun);color:#fff}
.btn-outline-w{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-outline-w:hover{background:var(--yellow);color:var(--gun);border-color:var(--yellow)}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(236,238,240,.94);
  backdrop-filter:saturate(150%) blur(12px);border-bottom:1px solid transparent;transition:.25s}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 22px rgba(35,40,45,.09)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:.55rem;font-family:var(--disp);font-size:1.6rem;color:var(--gun);font-weight:800;text-transform:uppercase;letter-spacing:.02em}
.brand .mk{width:40px;height:40px;flex:0 0 40px}
.brand small{display:block;font-family:var(--sans);font-size:.56rem;letter-spacing:.16em;color:var(--yellow-2);font-weight:700;margin-top:1px}
.nav-links{display:flex;align-items:center;gap:1.5rem;list-style:none;margin:0;padding:0}
.nav-links a{font-family:var(--sans);font-size:.92rem;font-weight:600;color:var(--ink)}
.nav-links a:hover{color:var(--yellow-2)}
.nav-cta{margin-left:.4rem}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{width:24px;height:2px;background:var(--gun);transition:.2s}
.nav-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded=true] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* hero */
.hero{position:relative;overflow:hidden;background:var(--gun);color:#c4ccd4}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:stretch;min-height:80vh}
.hero-copy{padding:5rem 4rem 5rem 0;display:flex;flex-direction:column;justify-content:center;max-width:600px}
.hero-copy h1{color:#fff;margin-bottom:.25em}
.hero-copy h1 .acc{color:var(--yellow)}
.hero-copy p{color:#b3bcc6}
.badge50{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--disp);font-weight:800;font-size:.86rem;letter-spacing:.08em;text-transform:uppercase;color:var(--gun);background:var(--yellow);padding:.4rem 1rem;border-radius:var(--r);margin-bottom:1.3rem;align-self:flex-start}
.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.7rem}
.hero-trust{display:flex;flex-wrap:wrap;gap:1.3rem;margin-top:2.1rem;align-items:center}
.hero-trust span{font-size:.84rem;font-weight:600;color:#9aa6b2;display:flex;align-items:center;gap:.5rem}
.hero-trust span::before{content:"";width:8px;height:8px;background:var(--yellow)}
.hero-media{position:relative;margin-right:calc(50% - 50vw)}
.hero-media img{width:100%;height:100%;object-fit:cover;min-height:80vh}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--gun),transparent 30%)}

/* emergency strip */
.emerg{background:var(--yellow);color:var(--gun)}
.emerg .wrap{display:flex;align-items:center;justify-content:center;gap:1.5rem;padding:1rem 24px;flex-wrap:wrap;text-align:center}
.emerg b{font-family:var(--disp);font-size:1.3rem;font-weight:800;text-transform:uppercase;letter-spacing:.02em}
.emerg a{color:var(--gun);font-weight:700;text-decoration:underline}

/* sections */
section{padding:5.2rem 0}
.alt{background:var(--steel-2)}
.gun-sec{background:var(--gun);color:#c4ccd4}
.gun-sec h2,.gun-sec h3{color:#fff}.gun-sec .lede,.gun-sec p{color:#b3bcc6}
.gun-sec .eyebrow{color:var(--yellow)}.gun-sec .eyebrow::before{background:var(--yellow)}
.sec-head{max-width:680px;margin:0 0 3rem}
.sec-head.c{margin:0 auto 3rem;text-align:center}

/* service cards */
.grid{display:grid;gap:1.3rem}
.g-3{grid-template-columns:repeat(3,1fr)}
.svc{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:2rem 1.8rem;transition:.2s;border-left:4px solid var(--gun)}
.svc:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-left-color:var(--yellow)}
.svc .si{width:52px;height:52px;border-radius:8px;background:var(--gun-soft);color:var(--gun);display:flex;align-items:center;justify-content:center;margin-bottom:1rem}
.svc:hover .si{background:var(--yellow-soft);color:var(--yellow-2)}
.svc h3{margin-bottom:.4rem}
.svc p{margin:0;font-size:.95rem;color:var(--ink-soft)}

/* sectors */
.sectors{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem}
.sector{background:var(--gun);color:#fff;border-radius:var(--r-lg);padding:2rem 1.8rem;border-bottom:4px solid var(--yellow)}
.sector h3{color:#fff}
.sector p{color:#b3bcc6;margin:0;font-size:.95rem}
.sector .sn{font-family:var(--disp);font-size:.85rem;font-weight:700;letter-spacing:.12em;color:var(--yellow);text-transform:uppercase;display:block;margin-bottom:.5rem}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:3.5rem;align-items:center}
.split.r .split-media{order:2}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow)}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-media .tag{position:absolute;left:0;bottom:0;background:var(--yellow);color:var(--gun);font-family:var(--disp);font-weight:700;text-transform:uppercase;letter-spacing:.04em;font-size:.78rem;padding:.5rem 1rem}
.aside-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:2.3rem;box-shadow:var(--shadow-sm);border-top:4px solid var(--yellow)}
.aside-card h3{color:var(--gun)}
.kv{display:flex;justify-content:space-between;gap:1rem;padding:.85rem 0;border-bottom:1px dashed var(--line);font-size:.96rem}
.kv:last-child{border-bottom:0}
.kv .k{color:var(--ink-soft)}.kv .v{font-weight:700;color:var(--gun);text-align:right}

/* feat detail */
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:2rem;border-left:5px solid var(--yellow)}
.feat h3{font-size:1.4rem;margin-bottom:.5rem}.feat p{margin:0 0 .6rem;color:var(--ink-soft)}
.feat+.feat{margin-top:1.2rem}

/* stat band */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;text-align:center}
.stat .n{font-family:var(--disp);font-size:3.2rem;color:var(--yellow);line-height:1;font-weight:800}
.stat .l{font-size:.82rem;letter-spacing:.08em;text-transform:uppercase;color:#9aa6b2;margin-top:.3rem;font-weight:600}

/* checks */
.checks{list-style:none;margin:1.2rem 0 0;padding:0;display:grid;gap:.7rem}
.checks li{position:relative;padding-left:2rem;color:var(--ink-soft)}
.checks li::before{content:"";position:absolute;left:0;top:.42em;width:14px;height:14px;background:var(--yellow);
  clip-path:polygon(14% 44%,0 60%,40% 100%,100% 22%,84% 8%,38% 64%)}
.cols-2{columns:2;column-gap:2.5rem}.cols-2 li{break-inside:avoid}
@media (max-width:620px){.cols-2{columns:1}}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:center;margin-top:1.5rem}
.chip{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:.5rem 1.1rem;font-size:.92rem;color:var(--gun);font-weight:600}

/* faq */
.faq{max-width:800px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:.4rem 2rem}
.faq details{border-bottom:1px solid var(--line);padding:1.3rem 0}.faq details:last-child{border-bottom:0}
.faq summary{font-family:var(--disp);font-weight:700;font-size:1.3rem;text-transform:uppercase;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:1rem;align-items:center;color:var(--gun)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--sans);font-size:1.5rem;color:var(--yellow-2);transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin:1rem 0 0;color:var(--ink-soft)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.info-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:1.8rem}
.info-row{display:flex;gap:.9rem;padding:.85rem 0;border-bottom:1px solid var(--line)}
.info-row:last-child{border-bottom:0}
.info-row .ic{color:var(--yellow-2);flex:0 0 22px;margin-top:2px}
.info-row b{display:block;font-size:.76rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);font-weight:700;margin-bottom:.15rem}
.map-embed{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);height:300px;margin-top:1.3rem}
.map-embed iframe{width:100%;height:100%;border:0}
.field{margin-bottom:1.1rem}
.field label{display:block;font-size:.78rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:.4rem}
.field input,.field textarea,.field select{width:100%;padding:.85rem 1rem;border:1px solid var(--line);border-radius:var(--r);background:#fff;font-family:var(--sans);font-size:1rem;color:var(--ink)}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--yellow);box-shadow:0 0 0 3px var(--yellow-soft)}

/* CTA band */
.cta-band{background:var(--gun);border-radius:var(--r-lg);padding:3.5rem;text-align:center;position:relative;overflow:hidden;border-bottom:5px solid var(--yellow)}
.cta-band h2{color:#fff}.cta-band p{color:#b3bcc6}

/* footer */
.site-footer{background:#1a1e22;color:#9aa6b2;padding:4rem 0 2rem;border-top:5px solid var(--yellow)}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:2.5rem;margin-bottom:2.5rem}
.site-footer h4{color:#fff;font-family:var(--disp);font-size:1.1rem;letter-spacing:.05em;text-transform:uppercase;font-weight:700;margin-bottom:1rem}
.site-footer a{color:#9aa6b2;display:block;margin-bottom:.55rem;font-size:.95rem}
.site-footer a:hover{color:var(--yellow)}
.foot-brand{font-family:var(--disp);font-size:1.6rem;color:#fff;margin-bottom:.5rem;text-transform:uppercase;font-weight:800}
.foot-bot{border-top:1px solid rgba(255,255,255,.13);padding-top:1.6rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.85rem;color:#6b7682}
.foot-bot a{display:inline;color:#6b7682}

/* sticky mobile bar */
.mobar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;background:var(--gun);padding:.6rem;gap:.6rem}
.mobar a{flex:1;text-align:center;justify-content:center}

/* reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}.reveal[data-d="2"]{transition-delay:.16s}.reveal[data-d="3"]{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* responsive */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;min-height:0}
  .hero-copy{padding:3rem 0 2.5rem;max-width:none}
  .hero-media{margin:0 calc(50% - 50vw);height:60vw;max-height:440px}
  .hero-media img{min-height:0;height:100%}
  .hero-media::after{background:linear-gradient(0deg,var(--gun),transparent 45%)}
  .split{grid-template-columns:1fr;gap:2.2rem}.split.r .split-media{order:0}
  .g-3,.sectors{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr);gap:1.5rem}
  .foot-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:760px){
  .nav-links{position:fixed;inset:74px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--steel);border-bottom:1px solid var(--line);padding:.5rem 24px 1.2rem;
    transform:translateY(-140%);transition:transform .3s ease;box-shadow:0 16px 30px rgba(35,40,45,.12)}
  .nav-links.open{transform:none}
  .nav-links li{border-bottom:1px solid var(--line)}.nav-links li:last-child{border-bottom:0}
  .nav-links a{display:block;padding:.95rem .2rem}
  .nav-cta{margin:.7rem 0 0}.nav-cta a{display:block;text-align:center}
  .nav-toggle{display:flex}
  .g-3,.sectors{grid-template-columns:1fr}
  .cta-band{padding:2.4rem 1.6rem}
  .foot-grid{grid-template-columns:1fr}
  body{padding-bottom:64px}.mobar{display:flex}
  section{padding:3.8rem 0}
}