/* ===========================================================
   GA Plumbing Network — design system
   Ported from the approved site design (blue / chalk / signal-yellow,
   Plus Jakarta Sans headings + body, IBM Plex Mono for image slugs).
   =========================================================== */

:root{
  --ink:#14161a;
  --ink-soft:#2a2f38;
  --muted:#5a6270;
  --muted-2:#7c8697;
  --blue:#1b75ff;
  --blue-dark:#0a5fe0;
  --blue-tint:#e8f1ff;
  --yellow:#ffd338;
  --yellow-dark:#f5c412;
  --surface:#f5f7fa;
  --surface-2:#eef1f6;
  --border:#e6e9ef;
  --white:#fff;

  --r-sm:10px; --r:12px; --r-md:14px; --r-lg:18px; --r-xl:22px;
  --shadow-1:0 2px 6px rgba(20,22,26,.05);
  --shadow-2:0 12px 30px rgba(20,22,26,.09);
  --shadow-3:0 18px 40px rgba(20,22,26,.12);

  --container:1240px;
  --gut:32px;
  --measure:68ch;

  --h1:clamp(38px,6vw,86px);
  --h2:clamp(30px,4vw,56px);
  --h3:clamp(21px,2.2vw,30px);
  --h4:clamp(18px,1.5vw,21px);
  --body:clamp(16px,1.05vw,17px);
  --lead:clamp(17px,1.3vw,19px);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
/* sticky header clearance for in-page anchor jumps */
:target,[id]{scroll-margin-top:96px}
body{
  margin:0;background:var(--white);color:var(--ink);
  font-family:'Plus Jakarta Sans',system-ui,-apple-system,Segoe UI,sans-serif;
  font-size:var(--body);line-height:1.75;-webkit-font-smoothing:antialiased;
  text-wrap:pretty;
}
img{max-width:100%;height:auto;display:block;object-fit:cover}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-dark)}
a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{
  outline:3px solid var(--blue);outline-offset:3px;border-radius:4px}
h1,h2,h3,h4{letter-spacing:-.03em;line-height:1.1;margin:0;text-wrap:balance}
h1{font-size:var(--h1);font-weight:800}
h2{font-size:var(--h2);font-weight:800}
h3{font-size:var(--h3);font-weight:700;letter-spacing:-.02em;line-height:1.2}
h4{font-size:var(--h4);font-weight:700;letter-spacing:-.015em}
p{margin:0 0 1.15em}
ul,ol{margin:0 0 1.3em;padding-left:1.25em}
li{margin:.4em 0}
strong{font-weight:700}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:12px 18px;z-index:200;border-radius:0 0 var(--r) 0}
.skip:focus{left:0;color:#fff}

/* ---------- layout ---------- */
.wrap{max-width:var(--container);margin:0 auto;padding:0 var(--gut)}
.sec{padding:clamp(64px,8vw,130px) 0}
.sec--tight{padding:clamp(48px,5vw,80px) 0}
.sec--chalk{background:var(--surface)}
.sec--ink{background:var(--ink);color:#fff}
.sec--ink h2,.sec--ink h3{color:#fff}
.sec--ink p{color:rgba(255,255,255,.8)}
.grid{display:grid;gap:clamp(28px,4vw,56px)}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(40px,6vw,90px);align-items:center}
.prose{max-width:var(--measure)}
.prose h2{margin-bottom:.55em}
.prose h3{margin:2.2em 0 .6em}
.prose h4{margin:1.9em 0 .5em}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
.lead{font-size:var(--lead);line-height:1.65;color:var(--muted);max-width:640px}
.sec--ink .lead{color:rgba(255,255,255,.82)}
.eyebrow{font-family:'IBM Plex Mono',ui-monospace,monospace;font-size:12px;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--blue);margin:0 0 18px}
.sec--ink .eyebrow{color:var(--yellow)}
.hr{height:1px;background:var(--border);border:0;margin:clamp(40px,5vw,64px) 0}

/* ---------- imagery ---------- */
.imgfill{display:block;width:100%;height:var(--h,420px);object-fit:cover;border-radius:var(--r-lg)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:52px;padding:15px 28px;border:0;border-radius:var(--r-md);
  font-family:inherit;font-size:17px;font-weight:700;letter-spacing:-.01em;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease}
.btn:hover{transform:scale(1.03)}
.btn svg{width:19px;height:19px;flex:none}
.btn--blue{background:var(--blue);color:#fff}
.btn--blue:hover{background:var(--blue-dark);color:#fff}
.btn--yellow{background:var(--yellow);color:var(--ink)}
.btn--yellow:hover{background:var(--yellow-dark);color:var(--ink)}
.btn--ghost{background:transparent;color:#fff;box-shadow:inset 0 0 0 2px rgba(255,255,255,.4)}
.btn--ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.btn--sm{min-height:46px;padding:12px 22px;font-size:16px}
.cta{margin:clamp(32px,4vw,48px) 0}
.cta__micro{font-size:15px;color:var(--muted);margin:0 0 14px;max-width:560px}
.sec--ink .cta__micro{color:rgba(255,255,255,.75)}
.cta--center{text-align:center}
.cta--center .cta__micro{margin-left:auto;margin-right:auto}

/* ---------- header ---------- */
.topbar{background:#fff;border-bottom:1px solid var(--border);font-size:14px;color:var(--muted)}
.topbar__in{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:11px 0;flex-wrap:wrap}
.topbar a{color:var(--ink);font-weight:700}
.topbar__note{display:flex;align-items:center;gap:8px}
.dot{width:9px;height:9px;border-radius:50%;background:#28c76f;flex:none;box-shadow:0 0 0 4px rgba(40,199,111,.18)}
.hdr{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.93);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--surface-2);transition:padding .2s ease,background-color .2s ease}
.hdr__in{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:16px 0;transition:padding .2s ease}
.hdr.is-stuck{background:var(--ink);border-bottom-color:transparent}
.hdr.is-stuck .hdr__in{padding:9px 0}
.hdr.is-stuck .brand,.hdr.is-stuck .nav a{color:#fff}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);flex:none;white-space:nowrap;font-weight:800;
  font-size:clamp(18px,2vw,23px);letter-spacing:-.03em}
.brand svg{width:38px;height:38px;flex:none}
.nav{display:flex;align-items:center;gap:clamp(18px,2.4vw,38px)}
.nav a{font-size:16px;font-weight:500;color:var(--ink);position:relative;padding:6px 0}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--blue);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.nav__cta{margin-left:6px}
.navtoggle{display:none;background:none;border:0;padding:10px;cursor:pointer}
.navtoggle span{display:block;width:24px;height:2px;background:currentColor;margin:5px 0}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-radius:var(--r-xl);
  min-height:clamp(440px,58vw,700px);display:flex;align-items:center;justify-content:center;
  background:repeating-linear-gradient(135deg,#dfe5ee 0 12px,#eaeff6 12px 24px)}
.hero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.hero__scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,14,20,.52) 0%,rgba(10,14,20,.74) 55%,rgba(10,14,20,.82) 100%)}
.hero__in{position:relative;padding:clamp(48px,6vw,80px) clamp(20px,4vw,48px);max-width:1000px;text-align:center}
.hero h1{color:#fff}
.hero__rule{width:74px;height:5px;background:var(--yellow);border-radius:3px;margin:0 auto 26px}
.hero__sub{margin:26px auto 0;max-width:660px;font-size:var(--lead);line-height:1.65;color:rgba(255,255,255,.88)}
.hero__btns{display:flex;gap:16px;justify-content:center;margin-top:36px;flex-wrap:wrap}
.hero__micro{margin:20px 0 0;font-size:14px;color:rgba(255,255,255,.72)}

/* ---------- trust strip ---------- */
.trust{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--border);
  border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;margin-top:clamp(28px,3vw,40px)}
.trust div{background:#fff;padding:22px 24px}
.trust b{display:block;font-size:16px}
.trust small{color:var(--muted);font-size:14px;line-height:1.5;display:block;margin-top:2px}

/* ---------- marquee ---------- */
.marquee{background:var(--yellow);overflow:hidden;padding:14px 0}
.marquee__track{display:flex;width:max-content;gap:48px;white-space:nowrap;
  font-weight:800;font-size:clamp(16px,2vw,22px);letter-spacing:-.02em;color:var(--ink);
  animation:slide 34s linear infinite}
.marquee a{color:var(--ink)}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- cards ---------- */
.card{position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px;display:flex;flex-direction:column;overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--blue);
  transform:scaleX(0);transform-origin:left;transition:transform .28s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card:hover::before,.card:focus-within::before{transform:scaleX(1)}
.card h3{margin:20px 0 0}
.card h4{margin:0}
.card p{margin:10px 0 18px;color:var(--muted);font-size:16px;line-height:1.6;flex:1}
.card__more{font-weight:700;font-size:16px}
.card--pad{padding:26px 24px}
.card--link a.stretch::after{content:"";position:absolute;inset:0}
.card__meta{font-size:14px;color:var(--muted-2);margin:6px 0 0}
.cardgrid{display:grid;gap:clamp(20px,2.4vw,36px)}
.cardgrid--3{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.cardgrid--4{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.linklist{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:8px 28px;
  list-style:none;padding:0;margin:0}
.linklist a{font-weight:600;font-size:16px;color:var(--ink-soft);display:block;padding:7px 0;border-bottom:1px solid var(--border)}
.linklist a:hover{color:var(--blue)}
.linklist--tight{grid-template-columns:1fr;gap:0}

/* ---------- callouts ---------- */
.keypoint{border:1px solid var(--border);border-radius:var(--r-lg);background:var(--surface);
  padding:clamp(22px,3vw,32px);margin:clamp(28px,3vw,40px) 0;box-shadow:var(--shadow-1)}
.keypoint h4{margin:0 0 10px}
.keypoint p:last-child{margin-bottom:0}
.keypoint--warn{background:#fffaea;border-color:#f4e3a8}
.pull{margin:clamp(32px,4vw,48px) 0;padding:6px 0 6px 28px;border-left:5px solid var(--yellow);
  font-size:clamp(20px,2.4vw,27px);line-height:1.4;font-weight:700;letter-spacing:-.02em}
.pull cite{display:block;font-size:15px;font-weight:500;font-style:normal;color:var(--muted);margin-top:12px}

/* ---------- table of contents ---------- */
.toc{border:1px solid var(--border);border-radius:var(--r-lg);padding:24px 26px;background:#fff;
  box-shadow:var(--shadow-1)}
.toc h2,.toc p.toc__t{font-size:13px;font-family:'IBM Plex Mono',monospace;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted-2);margin:0 0 14px;font-weight:500}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:t;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:2px 28px}
.toc li{counter-increment:t;margin:0}
.toc a{display:block;padding:8px 0;font-weight:600;color:var(--ink-soft);font-size:16px;border-bottom:1px solid var(--surface-2)}
.toc a::before{content:counter(t,decimal-leading-zero);font-family:'IBM Plex Mono',monospace;
  font-size:12px;color:var(--muted-2);margin-right:10px}
.toc a:hover{color:var(--blue)}
.toc a.is-active{color:var(--blue)}
.toc--sticky{position:sticky;top:96px}

/* ---------- region selector ---------- */
.regions{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:clamp(16px,2vw,24px)}
.region{position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:24px;transition:transform .2s ease,box-shadow .2s ease}
.region:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.region h3{font-size:22px;margin:0}
.region p{margin:8px 0 0;font-size:15px;color:var(--muted);line-height:1.6}
.region__count{display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  background:var(--blue-tint);color:var(--blue-dark);font-weight:700;font-size:14px;
  padding:5px 12px;border-radius:999px}
.region a.stretch::after{content:"";position:absolute;inset:0}

/* ---------- foundation + seasonal bands ---------- */
.band{display:grid;gap:1px;background:var(--border);border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.band > div{background:#fff;padding:clamp(24px,3vw,34px)}
.band h3{font-size:22px;margin:0 0 4px}
.band .band__tag{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--blue);display:block;margin-bottom:12px}
.band p{font-size:16px;line-height:1.7;color:var(--muted);margin:10px 0 0}
.band--ink{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.16)}
.band--ink > div{background:var(--ink)}
.band--ink h3{color:#fff}
.band--ink p{color:rgba(255,255,255,.78)}
.band--ink .band__tag{color:var(--yellow)}

/* ---------- steps ---------- */
.steps{counter-reset:s;display:grid;gap:clamp(20px,2.5vw,30px);grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.step{counter-increment:s;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:26px}
.step::before{content:counter(s,decimal-leading-zero);display:block;font-family:'IBM Plex Mono',monospace;
  font-size:13px;color:var(--blue);margin-bottom:14px;letter-spacing:.1em}
.step h3{font-size:21px}
.step p{margin:10px 0 0;color:var(--muted);font-size:16px;line-height:1.7}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:clamp(24px,3vw,40px);
  border-top:1px solid rgba(255,255,255,.18);padding-top:clamp(30px,4vw,44px)}
.stat b{display:block;font-size:clamp(38px,4.6vw,58px);font-weight:800;letter-spacing:-.04em;line-height:1}
.stat span{display:block;font-size:15px;color:rgba(255,255,255,.72);margin-top:10px}
.sec--chalk .stats{border-top-color:var(--border)}
.sec--chalk .stat span{color:var(--muted)}

/* ---------- FAQ ---------- */
.faq{max-width:860px}
.faq__item{border-bottom:1px solid var(--border)}
.faq__q{width:100%;background:none;border:0;text-align:left;cursor:pointer;padding:24px 44px 24px 0;
  position:relative;font-family:inherit}
.faq__q h3{font-size:clamp(18px,1.8vw,22px);font-weight:700}
.faq__q::after{content:"";position:absolute;right:8px;top:32px;width:12px;height:12px;
  border-right:2px solid var(--blue);border-bottom:2px solid var(--blue);
  transform:rotate(45deg);transition:transform .25s ease}
.faq__item.is-open .faq__q::after{transform:rotate(-135deg)}
/* Answers are open by default. Only main.js collapses them, by adding .is-collapsible
   to each item, so a blocked or failed script can never leave an answer unopenable.
   No transition: an animated collapse hides the answer wherever transitions stall. */
.faq__a{overflow:hidden}
.faq__item.is-collapsible .faq__a{max-height:0}
.faq__item.is-collapsible.is-open .faq__a{max-height:none}
.faq__a > div{padding:0 60px 26px 0;color:var(--muted);max-width:var(--measure)}
.faq__a p:last-child{margin-bottom:0}

/* ---------- final CTA ---------- */
.endcta{background:var(--ink);color:#fff;text-align:center;padding:clamp(56px,7vw,110px) 0}
.endcta h2{color:#fff}
.endcta p{color:rgba(255,255,255,.8);max-width:600px;margin:22px auto 0}
.endcta__btns{display:flex;gap:16px;justify-content:center;margin-top:34px;flex-wrap:wrap}
.endcta__phone{display:block;margin-top:26px;font-size:clamp(26px,3vw,38px);font-weight:800;
  letter-spacing:-.03em;color:var(--yellow)}
.endcta__phone:hover{color:var(--yellow-dark)}

/* ---------- breadcrumbs ---------- */
.crumbs{font-size:14px;color:var(--muted);padding:22px 0 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0}
.crumbs li+li::before{content:"/";margin-right:8px;color:var(--muted-2)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--blue)}
.crumbs [aria-current]{color:var(--ink);font-weight:600}

/* ---------- footer ---------- */
.foot{background:var(--ink);color:rgba(255,255,255,.72);padding:clamp(56px,6vw,96px) 0 32px;font-size:15px}
.foot a{color:rgba(255,255,255,.72)}
.foot a:hover{color:#fff}
.foot__top{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:clamp(28px,4vw,56px)}
.foot__brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:22px;letter-spacing:-.03em}
.foot__brand svg{width:36px;height:36px}
.foot h4{color:#fff;font-size:15px;letter-spacing:.08em;text-transform:uppercase;
  font-family:'IBM Plex Mono',monospace;font-weight:500;margin:0 0 18px}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.foot__phone{display:block;color:#fff;font-size:26px;font-weight:800;letter-spacing:-.03em;margin:20px 0 6px}
.foot__phone:hover{color:var(--yellow)}
.foot__nap{margin:18px 0 0;line-height:1.7}
.foot__bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:clamp(40px,5vw,64px);padding-top:26px;
  display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;font-size:13.5px;line-height:1.7}
.foot__disc{max-width:760px}

/* ---------- floating call button ---------- */
.fab{position:fixed;right:max(20px,env(safe-area-inset-right));bottom:max(20px,env(safe-area-inset-bottom));
  width:62px;height:62px;border-radius:50%;background:var(--blue);color:#fff;z-index:120;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-3);
  transform:translateY(140%) scale(.85);opacity:0;pointer-events:none;
  transition:transform .32s cubic-bezier(.2,.8,.3,1),opacity .32s ease,background-color .2s ease}
.fab.is-in{transform:translateY(0) scale(1);opacity:1;pointer-events:auto}
.fab:hover{background:var(--blue-dark);color:#fff}
.fab svg{width:26px;height:26px}
.fab::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid var(--blue);
  animation:ring 2.4s ease-out infinite}
@keyframes ring{0%{transform:scale(1);opacity:.55}70%{transform:scale(1.5);opacity:0}100%{opacity:0}}

/* ---------- scroll reveal ---------- */
.rv{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.rv.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .foot__top{grid-template-columns:repeat(2,minmax(0,1fr))}
  .trust{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:860px){
  :root{--gut:20px}
  .split{grid-template-columns:minmax(0,1fr)}
  .g-2,.g-3,.g-4{grid-template-columns:minmax(0,1fr)}
  .nav{position:fixed;inset:0 0 auto;top:0;background:var(--ink);flex-direction:column;
    align-items:stretch;gap:4px;padding:88px 24px 32px;transform:translateY(-102%);
    transition:transform .3s ease;z-index:70}
  .nav.is-open{transform:none}
  .nav a{color:#fff;font-size:19px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.12)}
  .nav a::after{display:none}
  .nav__cta{margin:18px 0 0}
  .navtoggle{display:block;position:relative;z-index:80;color:inherit}
  .hdr.is-stuck .navtoggle{color:#fff}
  .toc--sticky{position:static}
  .topbar__soc{display:none}
}
@media (max-width:560px){
  .btn{width:100%}
  .hero__btns .btn,.endcta__btns .btn{width:100%}
  .fab{width:58px;height:58px}
}

/* ---------- motion / print ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none}
  .fab{transform:none;opacity:1;pointer-events:auto}
}
@media print{
  .hdr,.topbar,.fab,.marquee,.toc{display:none}
  body{font-size:11pt}
  /* print every answer, whatever the accordion state */
  .faq__item.is-collapsible .faq__a{max-height:none}
  .faq__a{overflow:visible}
}