/* Plumbing Possibilities — CONCEPT 2 design system. "Water does not wait".
   Deep slate operations ground, the logo droplet cyan promoted to the signal
   colour, their navy kept as the structural blue.
   Palette still theirs: #163E80 navy, #6CA0C5 soft, #1C93E3 bright, #75CCD4 cyan,
   #192730 slate (all read from their own site, none invented).
   Type: Oswald (loud condensed) + Montserrat (quiet, their real face).
   Layout: numbered hairline rows, 3px radius, NO hover lift. Deliberately the
   opposite of concept 1's rounded soft cards. */

:root{
  --slate:#101A21; --slate-2:#16232C; --slate-3:#1C2C37;
  --navy:#163E80; --blue:#1C93E3; --soft:#6CA0C5; --cyan:#75CCD4;
  --ink:#F2F7FB; --body:#A9BDCC; --muted:#7D93A5; --line:rgba(255,255,255,.11);
  --radius:3px; --wrap:1180px;
  --disp:'Oswald',system-ui,sans-serif;
  --font:'Montserrat',system-ui,sans-serif;

  /* shared chat engine, skinned dark with the tokens chat.css ACTUALLY reads */
  --scq-sheet:#16232C; --scq-ink:var(--ink); --scq-muted:var(--muted);
  --scq-line:var(--line); --scq-accent:var(--cyan); --scq-accent-ink:#0B141A;
  --scq-bot:#1E2F3A; --scq-you:var(--cyan); --scq-you-ink:#0B141A;
  --scq-radius:4px; --scq-font-body:var(--font); --scq-font-display:var(--disp);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--slate);color:var(--body);font:400 16px/1.7 var(--font);overflow-x:hidden}
body.lock{overflow:hidden}
body.has-dock{padding-bottom:86px}
img{max-width:100%;display:block;height:auto}
a{color:var(--cyan)}
h1,h2,h3,h4{font-family:var(--disp);color:var(--ink);margin:0 0 .5em;line-height:1.1;font-weight:600;letter-spacing:.005em}
h1{font-size:clamp(2.3rem,5vw,4.1rem);font-weight:700;text-transform:uppercase;line-height:1.02}
h2{font-size:clamp(1.65rem,3.1vw,2.5rem);text-transform:uppercase}
h3{font-size:1.14rem;font-weight:600}
p{margin:0 0 1.1em}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
section[id],footer[id]{scroll-margin-top:92px}
.skip{position:absolute;left:-9999px;top:0;background:var(--cyan);color:#0B141A;padding:12px 18px;z-index:200}
.skip:focus{left:8px;top:8px}
.prog{position:fixed;left:0;top:0;height:2px;width:100%;background:var(--cyan);transform:scaleX(0);transform-origin:0 50%;z-index:120}

.eyebrow{display:flex;align-items:center;gap:9px;font-family:var(--disp);font-weight:500;font-size:13px;letter-spacing:.19em;text-transform:uppercase;color:var(--cyan);margin:0 0 1em}
.dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);flex:0 0 auto;box-shadow:0 0 0 4px rgba(117,204,212,.2)}
.sub{max-width:62ch;font-size:1.02rem;color:var(--body)}
.note{margin-top:30px;padding:16px 20px;border-left:2px solid var(--soft);background:rgba(108,160,197,.07);font-size:14px;color:var(--body)}

.reveal{opacity:0;transform:translateY(14px);filter:blur(4px);transition:opacity .7s ease,transform .7s ease,filter .7s ease}
.reveal.in{opacity:1;transform:none;filter:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;filter:none;transition:none}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:0 28px;border-radius:var(--radius);font-family:var(--disp);font-weight:600;font-size:15px;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:background .18s ease,border-color .18s ease,color .18s ease}
.btn-1{background:var(--cyan);color:#0B141A}
.btn-1:hover{background:#8FDCE3}
.btn-2{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-2:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-lg{min-height:60px;padding:0 36px;font-size:16px}

/* ---------- header ---------- */
.hd{position:sticky;top:0;z-index:100;background:rgba(16,26,33,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;gap:22px;min-height:78px}
.hd-brand{display:block;flex:0 0 auto}
.hd-brand img{height:40px;width:auto;background:#fff;border-radius:3px;padding:5px 8px}
.nav{display:flex;gap:28px;margin-left:auto}
.nav a{font-family:var(--disp);font-weight:500;font-size:14px;letter-spacing:.07em;text-transform:uppercase;color:var(--body);text-decoration:none;padding:8px 0}
.nav a:hover{color:var(--cyan)}
.hd-tel{display:inline-flex;align-items:center;gap:9px;min-height:46px;padding:0 17px;border:1.5px solid var(--cyan);border-radius:var(--radius);font-family:var(--disp);font-weight:600;font-size:14.5px;letter-spacing:.04em;color:var(--cyan);text-decoration:none}
.hd-tel svg{width:17px;height:17px;flex:0 0 auto}
.hd-tel:hover{background:var(--cyan);color:#0B141A}
.burger{display:none;width:46px;height:46px;border:1.5px solid var(--line);border-radius:var(--radius);background:transparent;cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:19px;height:2px;background:var(--cyan);border-radius:1px}
.mnav{display:none}

/* ---------- hero ---------- */
.hero{position:relative;display:flex;flex-direction:column;justify-content:center;min-height:min(90vh,900px);padding:70px 0 84px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0;overflow:hidden;background:
  radial-gradient(900px 620px at 76% 12%, rgba(28,147,227,.20), transparent 64%),
  radial-gradient(760px 520px at 4% 88%, rgba(22,62,128,.42), transparent 66%),
  linear-gradient(172deg,#131F27 0%,#101A21 58%,#0C151B 100%)}
/* concentric water rings, drawn not generated */
.hero-rings{position:absolute;left:64%;top:22%;width:760px;height:760px;transform:translate(-50%,-50%);opacity:.4;
  background:
   radial-gradient(circle,transparent 0 118px,rgba(117,204,212,.20) 118px 119px,transparent 120px),
   radial-gradient(circle,transparent 0 186px,rgba(117,204,212,.15) 186px 187px,transparent 188px),
   radial-gradient(circle,transparent 0 266px,rgba(117,204,212,.11) 266px 267px,transparent 268px),
   radial-gradient(circle,transparent 0 356px,rgba(117,204,212,.08) 356px 357px,transparent 358px)}
.hero-scan{position:absolute;inset:0;opacity:.5;background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px);background-size:100% 5px}
.hero-in{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);column-gap:56px;row-gap:0;align-items:center}
.hero-copy{grid-column:1;grid-row:1}
.hero-fig{grid-column:2;grid-row:1/span 2;min-height:520px;display:flex;align-items:center}
.hero-facts{grid-column:1;grid-row:2}
.hero-copy h1{max-width:15ch}
.hero .lede{font-size:1.06rem;max-width:52ch;color:var(--body)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 0}
.hero-facts{list-style:none;display:flex;flex-wrap:wrap;gap:36px;margin:34px 0 0;padding:26px 0 0;border-top:1px solid var(--line)}
.hero-facts b{display:block;font-family:var(--disp);font-weight:700;font-size:1.9rem;color:var(--cyan);line-height:1}
.hero-facts span{display:block;margin-top:6px;font-size:12.5px;color:var(--muted);max-width:22ch}

/* ---------- hero quiz, dark glass ---------- */
.ppq{position:relative;width:100%;align-self:center;border-radius:6px;overflow:hidden;
  background:linear-gradient(158deg,rgba(28,44,55,.86),rgba(16,26,33,.78));
  backdrop-filter:blur(30px) saturate(165%);-webkit-backdrop-filter:blur(30px) saturate(165%);
  box-shadow:0 30px 70px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.13)}
.ppq::before{content:'';position:absolute;left:0;top:0;width:72%;height:60%;pointer-events:none;
  background:radial-gradient(circle at 10% 4%,rgba(255,255,255,.13),transparent 62%)}
.ppq::after{content:'';position:absolute;inset:0;border-radius:6px;padding:1px;pointer-events:none;
  background:linear-gradient(180deg,transparent 52%,rgba(117,204,212,.9));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude}
@supports not ((backdrop-filter:blur(4px)) or (-webkit-backdrop-filter:blur(4px))){
  .ppq{background:var(--slate-2)}}
.ppq-brand{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;padding:18px 22px 16px;background:#fff}
.ppq-brand img{height:42px;width:auto}
.ppq-bar{position:relative;z-index:1;height:3px;background:rgba(255,255,255,.1)}
.ppq-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan));transition:width .4s ease}
.ppq-body{position:relative;z-index:1;padding:22px 24px 26px}
.ppq-kicker{font-family:var(--disp);font-weight:500;font-size:12px;letter-spacing:.17em;text-transform:uppercase;color:var(--cyan);margin:0 0 .6em}
.ppq-q{font-size:1.4rem;margin:0 0 .3em;color:var(--ink);text-transform:uppercase;font-family:var(--disp);font-weight:600}
.ppq-help{font-size:13.5px;color:var(--muted);margin:0 0 16px}
.ppq-opts{display:grid;gap:8px}
.ppq-o{display:block;width:100%;text-align:left;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.04);
  border-radius:4px;padding:12px 15px;cursor:pointer;font-family:var(--font);transition:border-color .16s,background .16s;min-height:56px}
.ppq-o:hover{border-color:var(--cyan);background:rgba(117,204,212,.09)}
.ppq-o-t{display:block;font-family:var(--disp);font-weight:600;font-size:15px;color:var(--ink);letter-spacing:.02em}
.ppq-o-s{display:block;font-size:12.5px;color:var(--muted);margin-top:2px;font-family:var(--font)}
.ppq-back{margin-top:14px;background:none;border:0;padding:8px 2px;min-height:40px;color:var(--muted);font:500 13px var(--disp);letter-spacing:.08em;text-transform:uppercase;cursor:pointer;text-decoration:underline}
.ppq-l{display:block;font-family:var(--disp);font-weight:500;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin:13px 0 5px}
.ppq-i{display:block;width:100%;min-height:52px;padding:12px 14px;border:1px solid rgba(255,255,255,.16);border-radius:4px;
  background:rgba(0,0,0,.26);font-family:var(--font);font-size:16px;color:var(--ink)}
.ppq-i:focus{outline:2px solid var(--cyan);outline-offset:1px;border-color:var(--cyan)}
.ppq-err{margin:10px 0 0;font-size:13px;color:#FF9A8B;font-weight:600}
.ppq-next{display:flex;align-items:center;justify-content:center;width:100%;min-height:54px;margin-top:18px;border:0;border-radius:4px;
  background:var(--cyan);color:#0B141A;font:600 15px var(--disp);letter-spacing:.07em;text-transform:uppercase;cursor:pointer;text-decoration:none}
.ppq-next:hover{background:#8FDCE3}
.ppq-done .ppq-kicker{text-transform:none;letter-spacing:.02em;font-size:13px}
.ppq-res{font-size:14.6px;color:var(--body);margin:0 0 4px}
.ppq-priv{margin:14px 0 0;font-size:12.5px;line-height:1.55;color:var(--muted)}

/* ---------- sections ---------- */
.sec{padding:96px 0}
.sec-alt{background:var(--slate-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* numbered sequence */
.seq{list-style:none;counter-reset:none;padding:0;margin:34px 0 0;display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.seq-i{display:grid;grid-template-columns:56px 1fr;gap:18px;background:var(--slate);padding:26px 24px}
.seq-n{font-family:var(--disp);font-weight:700;font-size:2rem;color:var(--navy);line-height:1;
  -webkit-text-stroke:1px var(--soft);color:transparent}
.seq-i h3{margin-bottom:.35em;text-transform:uppercase;font-size:1.02rem;letter-spacing:.04em}
.seq-i p{margin:0;font-size:14.2px;color:var(--muted)}

/* spec rows, the signature move of this concept */
.rows{margin-top:36px;border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:64px 1fr auto;gap:22px;align-items:start;padding:26px 4px;border-bottom:1px solid var(--line)}
.row-n{font-family:var(--disp);font-weight:700;font-size:1.5rem;color:var(--soft);line-height:1.2;opacity:.75}
.row-b h3{margin-bottom:.32em;text-transform:uppercase;letter-spacing:.04em}
.row-b p{margin:0;font-size:14.4px;color:var(--muted);max-width:62ch}
.row-tag{align-self:center;white-space:nowrap;font-family:var(--disp);font-weight:500;font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:var(--cyan);border:1px solid rgba(117,204,212,.35);border-radius:2px;padding:6px 11px}

/* buildings */
.bld{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:54px;align-items:center}
.bld-f{margin:0}
.bld-f img{width:100%;border-radius:var(--radius);border:1px solid var(--line)}
.bld-f figcaption{margin-top:11px;font-size:12.5px;color:var(--muted)}
.defs{margin:24px 0 0;display:grid;gap:0;border-top:1px solid var(--line)}
.defs > div{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:15px 0;border-bottom:1px solid var(--line)}
.defs dt{font-family:var(--disp);font-weight:600;font-size:14px;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan)}
.defs dd{margin:0;font-size:14.2px;color:var(--muted)}

/* will not claim */
.nots{list-style:none;padding:0;margin:34px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.nots li{background:var(--slate-2);padding:22px 22px;font-size:14.3px;color:var(--muted);line-height:1.62}
.nots b{display:block;font-family:var(--disp);font-weight:600;font-size:15px;letter-spacing:.03em;color:var(--ink);margin-bottom:.35em;text-transform:uppercase}

.sec-cta{padding:0 0 96px}
.cta{display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
  border:1px solid rgba(117,204,212,.3);border-radius:var(--radius);padding:44px 44px;
  background:linear-gradient(120deg,rgba(22,62,128,.34),rgba(28,147,227,.10))}
.cta h2{margin-bottom:.25em}
.cta p{margin:0;max-width:52ch;color:var(--body)}

/* ---------- footer ---------- */
.ft{background:#0B141A;color:var(--body);padding:70px 0 26px;border-top:1px solid var(--line)}
.ft h4{color:var(--cyan);font-family:var(--disp);font-weight:500;font-size:13px;letter-spacing:.16em;text-transform:uppercase;margin-bottom:1.1em}
.ft-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px}
.ft-logo{height:44px;width:auto;background:#fff;border-radius:3px;padding:6px 9px}
.ft-t{margin-top:16px;font-size:14px;max-width:34ch;color:var(--muted)}
.ft p{font-size:14px;line-height:1.78;margin:0}
.ft a{color:var(--ink);text-decoration:none}
.ft a:hover{color:var(--cyan)}
/* the footer phone link was an 18px tap target. The audit measures the
   element's own box, so a pseudo element would not fix it. Give it height. */
.ft a[href^="tel:"]{display:inline-flex;align-items:center;min-height:44px;font-weight:600}
.ft-m{font-size:12.5px;color:var(--muted)}
.ft-note{margin-top:44px;padding-top:24px;border-top:1px solid var(--line)}
.ft-note p{font-size:13px;line-height:1.74;color:var(--muted);max-width:none}
.ft-bot{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.by{font-family:var(--font)}
.by a{color:var(--muted);text-decoration:none;display:inline-flex;align-items:center;min-height:34px}
.by a b{color:var(--cyan);font-weight:700}
.by a:hover{text-decoration:underline}

/* ---------- dock ---------- */
.dk{position:fixed;left:0;right:0;bottom:14px;z-index:95;display:flex;justify-content:center;pointer-events:none;padding:0 12px}
.dk-sheet{position:relative;display:flex;align-items:center;gap:2px;min-width:0;pointer-events:auto;
  background:rgba(22,35,44,.92);backdrop-filter:blur(20px) saturate(160%);-webkit-backdrop-filter:blur(20px) saturate(160%);
  border:1px solid var(--line);border-radius:6px;padding:7px;box-shadow:0 14px 40px rgba(0,0,0,.5)}
.dk-pill{position:absolute;top:7px;bottom:7px;left:0;border-radius:4px;background:rgba(117,204,212,.15);opacity:0;transition:transform .28s cubic-bezier(.4,0,.2,1),width .28s cubic-bezier(.4,0,.2,1),opacity .2s}
.dk-i{position:relative;z-index:1;display:inline-flex;align-items:center;gap:7px;min-height:46px;min-width:46px;padding:0 13px;border:0;background:none;
  border-radius:4px;color:var(--muted);font:500 12.5px var(--disp);letter-spacing:.08em;text-transform:uppercase;text-decoration:none;cursor:pointer;white-space:nowrap}
.dk-i svg{width:19px;height:19px;flex:0 0 auto}
.dk-i.on{color:var(--cyan)}
.dk-i:hover{color:var(--cyan)}
.dk-i.dk-chat{display:none}
@media(max-width:1023px){
  .scq-fab{display:none}
  .dk-i.dk-chat{display:inline-flex}
}

/* ---------- responsive ---------- */
@media(max-width:1080px){
  .hero-in{grid-template-columns:1fr;row-gap:34px}
  .hero-copy{grid-column:1;grid-row:auto}
  .hero-fig{grid-column:1;grid-row:auto;min-height:0}
  .hero-facts{grid-column:1;grid-row:auto}
  .bld{grid-template-columns:1fr;gap:36px}
  .bld-f{max-width:420px}
  .seq{grid-template-columns:1fr}
  .nots{grid-template-columns:1fr}
}
@media(max-width:900px){
  .nav{display:none}
  .burger{display:flex;margin-left:auto}
  .mnav{position:fixed;left:0;right:0;top:78px;bottom:0;background:var(--slate-2);padding:26px 24px;z-index:99;overflow-y:auto}
  .mnav.on{display:block;animation:mnavIn .26s ease}
  @keyframes mnavIn{from{opacity:0;transform:translateX(18px)}to{opacity:1;transform:none}}
  .mnav a{display:flex;align-items:center;min-height:58px;font:600 18px var(--disp);letter-spacing:.05em;text-transform:uppercase;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line)}
  .mnav-tel{color:var(--cyan) !important;border-bottom:0 !important;margin-top:14px}
}
@media(max-width:820px){
  .row{grid-template-columns:48px 1fr;gap:16px}
  .row-tag{grid-column:2;justify-self:start;margin-top:10px}
  .defs > div{grid-template-columns:1fr;gap:4px}
  .cta{padding:34px 26px}
}
@media(max-width:640px){
  .sec{padding:60px 0}
  .sec-cta{padding:0 0 60px}
  .hero{min-height:0;padding:46px 0 56px}
  .wrap{padding:0 20px}
  .hero-facts{gap:22px}
  .ft-top{grid-template-columns:1fr;gap:28px}
  .hd-tel-n{display:none}
  .hd-tel{padding:0 13px}
  .btn,.hero-cta .btn,.cta .btn{width:100%}
  .hero-rings{width:520px;height:520px;left:78%;opacity:.28}
  .dk-i.wide{display:none}
}
@media(max-width:400px){
  .dk-i span{display:none}
  .dk-i{padding:0 12px}
}

/* ---------- THE PHONE STANDARD (last, so it wins the cascade) ---------- */
@media(max-width:640px){
  input,select,textarea,.ppq-i,.scq-f input{font-size:16px !important}
  .eyebrow,.ppq-kicker,.hero-facts span,.ft-m,.ft-note p,.ft-bot,.bld-f figcaption,
  .ppq-help,.ppq-o-s,.ppq-priv,.ppq-l,.ppq-err,.row-b p,.seq-i p,.defs dd,.nots li,
  .row-tag,.note{font-size:13px}
  .hero-facts span{font-size:12.5px;max-width:26ch}
  .dk-i{font-size:12px}
  h1{font-size:clamp(2rem,8vw,2.6rem)}
  h2{font-size:clamp(1.45rem,5.6vw,1.9rem)}
  .lede,.sub{font-size:15.5px}
  .dk{bottom:10px}
  body.has-dock{padding-bottom:80px}
}