@font-face{font-family:'Archivo';src:url('../fonts/Archivo-Variable.woff2') format('woff2-variations');font-weight:400 800;font-style:normal;font-display:swap}
@font-face{font-family:'Inter';src:url('../fonts/Inter-Variable.woff2') format('woff2-variations');font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:'Archivo Fallback';src:local('Arial');size-adjust:96%;ascent-override:90%;descent-override:24%;line-gap-override:0%}
@font-face{font-family:'Inter Fallback';src:local('Arial');size-adjust:107%;ascent-override:90.4%;descent-override:22.5%;line-gap-override:0%}
:root{
--ink-950:#050a11;--ink-900:#0a1119;--ink-850:#0c1725;--ink-800:#122033;--ink-750:#182a41;--ink-700:#213a58;
--bg:#eef2f7;--band:#e6edf4;
--silverband:linear-gradient(180deg,#f7fafd 0%,#eaf0f7 58%,#e2eaf3 100%);
--line:#d8e2ee;--line-2:#c2d2e5;
--dline:#20344e;--dline-2:#2f4762;
--panel:linear-gradient(180deg,#fcfdff,#f1f5fa 55%,#e7edf5);--panel-2:#f0f4fa;
--fg:#0c1524;--muted:#46596f;--muted-2:#6b8098;
--dfg:#eef4fb;--dmuted:#b4c6da;--dmuted-2:#8098b0;
--aqua:#1a7efb;--aqua-lt:#6fb0ff;--aqua-deep:#0d55c8;--aqua-glow:rgba(26,126,251,.5);
--brass:#6fb0ff;--brass-lt:#a9d0ff;--brass-deep:#0e63d8;--brass-glow:rgba(26,126,251,.5);
--steel:#c6d5e6;--steel-2:#8ba0b8;
--chrome:linear-gradient(180deg,#eef4fb,#c2d2e3 46%,#8598ae 62%,#dbe6f2);
--grad-aqua:linear-gradient(90deg,var(--aqua-deep),var(--aqua-lt));
--grad-brass:linear-gradient(180deg,var(--brass-lt),var(--brass) 55%,var(--brass-deep));
--wrap:1200px;--gut:clamp(1.15rem,4vw,2.5rem);
--s2:.5rem;--s3:.75rem;--s4:1rem;--s5:1.5rem;--s6:2rem;--s7:3rem;--s8:4.5rem;
--r1:8px;--r2:14px;--r3:22px;--pill:999px;
--fd:'Archivo','Archivo Fallback',system-ui,sans-serif;--fb:'Inter','Inter Fallback',system-ui,-apple-system,'Segoe UI',sans-serif;
--ease:cubic-bezier(.22,.61,.36,1);--ease-out:cubic-bezier(.16,1,.3,1);
--header-h:72px;--header-tall:218px;--shadow:0 24px 64px -24px rgba(0,0,0,.75)}
/* dark feature bands re-scope semantic tokens to light-on-dark */
.hero,.page-head,.backflow-section,.contact-section,.brand-band,.site-footer{--fg:var(--dfg);--muted:var(--dmuted);--muted-2:var(--dmuted-2);--line:var(--dline);--line-2:var(--dline-2);--panel:var(--ink-850);color:var(--fg)}
*,*::before,*::after{box-sizing:border-box}*{margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 14px);background:var(--ink-950)}
body{background:var(--bg);color:var(--fg);font-family:var(--fb);font-size:1rem;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;text-wrap:pretty}
img,svg,canvas,video{display:block;max-width:100%}img{height:auto}
a{color:inherit;text-decoration:none}ul{list-style:none;padding:0}
button,input,select,textarea{font:inherit;color:inherit}button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--aqua);outline-offset:3px;border-radius:4px}
::selection{background:var(--aqua-glow);color:#04252a}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gut)}
.wrap-narrow{max-width:820px}
.section{padding-block:clamp(3.4rem,8vw,6.2rem);position:relative}
main{position:relative;z-index:2}
.muted{color:var(--muted)}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0}
h1,h2,h3,h4{font-family:var(--fd);font-weight:750;line-height:1.06;letter-spacing:-.015em}
h1{font-size:clamp(2.5rem,6vw,4.4rem);font-weight:780}
h2{font-size:clamp(1.95rem,4vw,3rem);font-weight:800;letter-spacing:-.02em}
h3{font-size:clamp(1.15rem,2vw,1.4rem);letter-spacing:-.01em}
h4{font-size:1rem;letter-spacing:.02em}
p{max-width:62ch}
.lede{font-size:clamp(1.05rem,1.5vw,1.24rem);line-height:1.6;color:var(--muted);font-weight:400}
.grad{color:#e8f1ff;text-shadow:0 0 30px rgba(255,255,255,.28)}
.kicker{font-family:var(--fd);font-size:.8rem;font-weight:750;letter-spacing:.22em;text-transform:uppercase;color:var(--aqua-deep);display:inline-flex;align-items:center;gap:.7rem;margin-bottom:var(--s4)}
.kicker .dot{width:26px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--aqua-deep),var(--aqua-lt))}
.section-head{max-width:760px;margin-bottom:clamp(2rem,4vw,3rem)}
.section-head.center{margin-inline:auto;text-align:center}
.section-head .lede{margin-top:var(--s4)}
/* ---------- buttons: squared, engraved caps — hover lifts, no fill-rise ---------- */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.6rem;font-family:var(--fd);font-weight:750;letter-spacing:.07em;text-transform:uppercase;font-size:.88rem;padding:.95rem 1.5rem;border-radius:6px;border:1.5px solid var(--line-2);color:var(--fg);background:transparent;overflow:hidden;isolation:isolate;transition:transform .16s var(--ease),box-shadow .25s var(--ease),border-color .2s,color .2s,background .2s}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-lg{padding:1.1rem 1.9rem;font-size:.95rem}
.btn-primary{background:linear-gradient(180deg,#2b8bff,var(--aqua) 55%,#0f63dd);border-color:var(--aqua-deep);color:#ffffff;box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 12px 26px -12px rgba(13,85,200,.55)}
.btn-primary:hover{background:linear-gradient(180deg,#1a7efb,#0d55c8 60%,#0b3e93);box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 16px 34px -14px rgba(13,85,200,.6);color:#ffffff}
.btn-ghost{background:transparent;border-color:var(--aqua-deep);color:var(--aqua-deep)}
.btn-ghost:hover{background:var(--aqua);border-color:var(--aqua);color:#fff}
.btn-call{background:linear-gradient(180deg,#2b8bff,var(--aqua) 55%,#0f63dd);border-color:var(--aqua-deep);color:#fff;font-size:.82rem;padding:.66rem 1.1rem;box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 8px 18px -10px rgba(13,85,200,.5)}
.btn-call:hover{background:linear-gradient(180deg,#1a7efb,#0d55c8 60%,#0b3e93);color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:var(--s3) var(--s4);margin-top:var(--s5)}
/* ---------- top flow-line scroll progress ---------- */
.flow-progress{position:fixed;top:0;left:0;right:0;height:5px;z-index:130;background:rgba(12,30,60,.08);pointer-events:none}
.flow-fill{height:100%;width:var(--sp,0%);position:relative;background:linear-gradient(90deg,var(--aqua-deep),var(--aqua) 55%,var(--aqua-lt));box-shadow:0 0 14px var(--aqua-glow);transition:width .1s linear}
.flow-fill::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,transparent 0 9px,rgba(255,255,255,.4) 9px 13px);animation:flowdash .55s linear infinite}
@keyframes flowdash{to{background-position:22px 0}}
/* ---------- header (centered stacked → condensed on scroll) ---------- */
.skip{position:absolute;left:var(--gut);top:0;transform:translateY(-150%);z-index:200;background:var(--aqua);color:#fff;font-family:var(--fd);font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:.55rem 1rem;border-radius:0 0 var(--r1) var(--r1);transition:transform .2s var(--ease)}
.skip:focus{transform:translateY(0)}
.site-header{position:fixed;inset:0 0 auto 0;z-index:110;height:var(--header-h);display:flex;flex-direction:column;align-items:stretch;background:linear-gradient(180deg,rgba(250,252,255,.95),rgba(233,239,246,.93) 52%,rgba(216,225,235,.94));backdrop-filter:saturate(160%) blur(12px);-webkit-backdrop-filter:saturate(160%) blur(12px);transition:height .32s var(--ease),background .3s,box-shadow .3s,border-color .3s;border-bottom:1px solid #cfdceb}
.site-header.stuck{background:linear-gradient(180deg,rgba(251,253,255,.98),rgba(234,240,247,.97) 52%,rgba(217,226,236,.97));border-bottom-color:#c4d3e4;box-shadow:0 12px 30px -16px rgba(13,40,80,.2)}
.header-inner{position:relative;flex:1;min-height:0;display:flex;align-items:center;justify-content:center;gap:var(--s5);width:100%}
/* black utility strip above the header (desktop only) */
.topbar{display:none;flex:none;height:34px;background:#070b12;border-bottom:1px solid rgba(111,176,255,.2)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:100%}
.tb-item{display:inline-flex;align-items:center;gap:.45rem;font-family:var(--fd);font-weight:650;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:#b9cfe8;white-space:nowrap}
.tb-item svg{width:13px;height:13px;color:var(--aqua-lt);flex:none}
a.tb-item:hover{color:#fff}
.tb-mid{color:#7f9ab8}
.tb-right{display:inline-flex;align-items:center;gap:.6rem}
.tb-soc{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:5px;color:#b9cfe8;border:1px solid rgba(160,200,255,.28);transition:color .2s,border-color .2s,background .2s}
.tb-soc svg{width:12px;height:12px;fill:currentColor}
.tb-soc:hover{color:#fff;border-color:rgba(160,205,255,.65);background:rgba(26,126,251,.3)}
.brand{display:inline-flex;align-items:center;justify-content:center;gap:.7rem}
.brand-logo{height:52px;width:auto;display:block;filter:drop-shadow(0 2px 9px rgba(10,30,60,.22));transition:height .32s var(--ease)}
.nav{display:none;gap:1.7rem}
.nav a{font-family:var(--fd);font-weight:700;font-size:.9rem;letter-spacing:.05em;text-transform:uppercase;color:#33465c;position:relative;padding:.3rem 0}
.nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;background:var(--grad-aqua);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease-out)}
.nav a:hover{color:var(--fg)}.nav a:hover::after{transform:scaleX(1)}
.header-call{display:none}
.hdr-pipes{display:none}
.burger{position:absolute;right:0;top:50%;transform:translateY(-50%);width:44px;height:44px;display:grid;place-content:center;gap:5px}
.burger span{width:24px;height:2.5px;background:var(--fg);border-radius:2px;transition:transform .3s,opacity .3s}
.burger[aria-expanded=true] span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.burger[aria-expanded=true] span:nth-child(2){opacity:0}
.burger[aria-expanded=true] span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
.mobile-menu{position:fixed;inset:var(--header-h) 0 auto 0;z-index:105;background:linear-gradient(180deg,rgba(251,253,255,.98),rgba(232,239,246,.97));backdrop-filter:blur(12px);padding:var(--s5) var(--gut) var(--s6);transform:translateY(-125%);transition:transform .35s var(--ease);border-bottom:1px solid #e2ebf5;box-shadow:0 16px 34px -18px rgba(13,40,80,.22)}
.mobile-menu.open{transform:translateY(0)}
.mobile-menu ul{display:grid;gap:.3rem;margin-bottom:var(--s5)}
.mobile-menu a{font-family:var(--fd);font-weight:650;font-size:1.28rem;display:block;padding:.6rem 0;border-bottom:1px solid var(--line)}
.mobile-menu .btn{width:100%}
/* ---------- hero: light through water ---------- */
.hero{position:relative;min-height:min(94vh,860px);display:flex;align-items:center;padding-top:calc(var(--header-h) + 2.5rem);padding-bottom:4.5rem;overflow:hidden;background:radial-gradient(1150px 620px at 68% 24%,#14305c 0%,rgba(20,48,92,0) 62%),radial-gradient(900px 520px at 22% 88%,#0d1b31 0%,rgba(13,27,49,0) 60%),linear-gradient(168deg,#0f1c33 0%,#0a1322 48%,#060b14 100%)}
/* legacy pipe schematics (inner-page markup) stay hidden */
.hero-schematic{display:none;position:absolute;inset:0;width:100%;height:100%;z-index:1;opacity:.92;pointer-events:none}
/* text-protection scrim over the scene, under the content */
.hero-scrim{position:absolute;inset:0;z-index:2;pointer-events:none;background:linear-gradient(103deg,rgba(6,10,18,.82) 0%,rgba(6,10,18,.5) 30%,rgba(6,10,18,.12) 52%,transparent 66%),linear-gradient(0deg,rgba(6,10,18,.55),transparent 26%)}
.hero-glow{position:absolute;z-index:1;left:72%;top:38%;translate:-50% -50%;width:min(820px,110vw);aspect-ratio:1;background:radial-gradient(circle,rgba(120,180,255,.16),transparent 62%);pointer-events:none;animation:heroGlow 20s ease-in-out infinite}
@keyframes heroGlow{0%,100%{opacity:.82;transform:scale(1)}50%{opacity:1;transform:scale(1.05)}}
/* light entering at the surface (static wash) + light pooling on the floor (slow breathe) */
.hero::before{content:"";position:absolute;z-index:1;left:0;right:0;top:0;height:190px;pointer-events:none;background:linear-gradient(180deg,rgba(150,200,255,.15),rgba(150,200,255,.05) 55%,transparent);mix-blend-mode:screen}
.hero::after{content:"";position:absolute;z-index:1;left:5%;right:5%;bottom:-4%;height:44%;pointer-events:none;background:radial-gradient(52% 68% at 55% 100%,rgba(26,126,251,.15),transparent 72%);filter:blur(28px);mix-blend-mode:screen;animation:seaFloor 16s ease-in-out infinite alternate}
@keyframes seaFloor{from{opacity:.55}to{opacity:1}}
.hero-sea{position:absolute;inset:0;z-index:1;overflow:hidden;pointer-events:none}
/* volumetric light shafts — slow sway and breathe, never a sweep */
.sea-rays{position:absolute;inset:0;animation:raysDrift 37s ease-in-out infinite alternate}
.sea-rays i{position:absolute;top:-9%;height:122%;rotate:-13deg;transform-origin:50% 0;opacity:.85;mix-blend-mode:screen;filter:blur(18px);will-change:translate,opacity;background:linear-gradient(90deg,transparent,rgba(205,228,255,var(--a,.26)) 38% 62%,transparent);-webkit-mask-image:linear-gradient(180deg,#000 10%,rgba(0,0,0,.45) 56%,transparent 84%);mask-image:linear-gradient(180deg,#000 10%,rgba(0,0,0,.45) 56%,transparent 84%);animation:raySway var(--sw,15s) ease-in-out var(--d1,0s) infinite alternate,rayBreathe var(--br,11s) ease-in-out var(--d2,0s) infinite alternate}
.sea-rays i:nth-child(1){left:37%;width:120px;--a:.28;--sw:14s;--br:10s;--d1:-3s;--d2:-2s}
.sea-rays i:nth-child(2){left:51%;width:260px;--a:.33;--sw:18.5s;--br:13s;--d1:-9s;--d2:-6s}
.sea-rays i:nth-child(3){left:67%;width:150px;--a:.31;--sw:12.5s;--br:9.5s;--d1:-6s;--d2:-4s}
.sea-rays i:nth-child(4){left:82%;width:95px;--a:.22;--sw:16.5s;--br:12s;--d1:-1s;--d2:-8s}
@keyframes raysDrift{from{translate:0 0}to{translate:26px 0}}
@keyframes raySway{from{translate:-20px 0}to{translate:20px 0}}
@keyframes rayBreathe{from{opacity:.5}to{opacity:1}}
/* caustic light woven across the surface overhead — two copies weave as they counter-drift */
.sea-caustics{position:absolute;left:-40px;top:0;width:calc(100% + 80px);height:min(480px,62%);opacity:.8;will-change:transform,opacity;-webkit-mask-image:radial-gradient(105% 130% at 60% -18%,#000 32%,rgba(0,0,0,.4) 60%,transparent 78%);mask-image:radial-gradient(105% 130% at 60% -18%,#000 32%,rgba(0,0,0,.4) 60%,transparent 78%);animation:cwDriftA 27s ease-in-out infinite alternate,cwFadeA 13.5s ease-in-out infinite alternate}
.sea-caustics-b{opacity:.5;transform-origin:50% 0;animation:cwDriftB 21s ease-in-out infinite alternate,cwFadeB 17s ease-in-out -5s infinite alternate}
@keyframes cwDriftA{from{transform:translate(-24px,0)}to{transform:translate(24px,5px)}}
@keyframes cwDriftB{from{transform:scale(1.07) translate(26px,-3px)}to{transform:scale(1.07) translate(-26px,2px)}}
@keyframes cwFadeA{from{opacity:.6}to{opacity:.95}}
@keyframes cwFadeB{from{opacity:.3}to{opacity:.68}}
/* glossy bubbles drifting up through the light */
.sea-bubbles{position:absolute;inset:0;overflow:hidden}
.sea-bubbles .bub{position:absolute;bottom:-30px;left:var(--x);width:var(--size);height:var(--size);border-radius:50%;filter:blur(var(--bl,0px));background:radial-gradient(circle at 32% 30%,rgba(255,255,255,.95),rgba(190,220,255,.42) 38%,rgba(140,195,255,.12) 60%,rgba(120,180,255,0) 72%);box-shadow:0 0 8px rgba(130,190,255,.3);opacity:0;animation:bubRise var(--dur,16s) linear var(--delay,0s) infinite}
@keyframes bubRise{0%{transform:translateY(0) translateX(0);opacity:0}9%{opacity:var(--o,.4)}50%{transform:translateY(-46vh) translateX(var(--sway,10px))}90%{opacity:var(--o,.4)}100%{transform:translateY(-92vh) translateX(0);opacity:0}}
.hero .wrap{position:relative;z-index:3}
.hero-grid{display:grid;gap:clamp(2rem,5vw,3.5rem);align-items:center;grid-template-columns:1fr}
.hero-copy{max-width:640px}
.hero h1{margin:.5rem 0 1.1rem}
.hero .lede{max-width:54ch}
.hero-trust{display:flex;flex-wrap:wrap;gap:.55rem 1.3rem;margin-top:var(--s5);font-family:var(--fd);font-weight:600;font-size:.83rem;letter-spacing:.04em;color:#d3e4ff}
.hero-trust li{display:flex;align-items:center;gap:.5rem}
.hero-trust li svg{width:16px;height:16px;color:#eaf2ff;flex:none}
/* hero photo */
.hero-media{position:relative;justify-self:center;width:100%;max-width:520px}
.hero-frame{position:relative;border-radius:var(--r3);overflow:hidden;border:1px solid var(--line-2);box-shadow:var(--shadow);aspect-ratio:4/3;background:var(--ink-800)}
.hero-frame img{width:100%;height:100%;object-fit:cover}
.hero-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(7,10,12,.55));pointer-events:none}
.hero-badge{position:absolute;left:14px;bottom:14px;z-index:2;display:flex;align-items:center;gap:.6rem;background:rgba(8,12,15,.85);backdrop-filter:blur(8px);border:1px solid var(--line-2);border-radius:8px;padding:.5rem .9rem;font-family:var(--fd);font-weight:650;font-size:.82rem;letter-spacing:.02em}
.hero-badge .ring{width:16px;height:16px;border-radius:50%;border:2px solid var(--aqua);box-shadow:0 0 8px var(--aqua-glow);position:relative}
.hero-badge .ring::after{content:"";position:absolute;inset:3px;border-radius:50%;background:var(--aqua)}
.hero-lic{position:absolute;right:14px;top:14px;z-index:2;background:rgba(7,12,20,.85);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border:1px solid rgba(111,176,255,.55);color:#fff;border-radius:6px;padding:.42rem .8rem;font-family:var(--fd);font-weight:750;font-size:.74rem;letter-spacing:.08em;text-shadow:0 1px 2px rgba(0,0,0,.65)}
/* hero (blue band) local overrides */
.hero .kicker{color:#dbe8ff}
.hero .kicker .dot{background:#fff;box-shadow:0 0 10px rgba(255,255,255,.6)}
.hero .lede{color:#e6efff}
.hero .lede strong{color:#fff}
.hero .btn-primary{background:var(--aqua);color:#fff;box-shadow:0 14px 30px -14px rgba(26,126,251,.55)}
.hero .btn-primary::before{background:linear-gradient(180deg,#0d55c8,#0b3e93)}
.hero .btn-primary:hover{color:#fff}
.hero .btn-ghost{background:transparent;border-color:rgba(255,255,255,.75);color:#fff}
.hero .btn-ghost:hover{background:linear-gradient(180deg,#fbfdff,#dfe8f1);border-color:#eef4fb;color:var(--aqua-deep)}
/* chrome lettering on dark-band display text — same metal as the badge's "TopNotch" */
@supports(-webkit-background-clip:text){
.hero h1,.page-head h1,.backflow-section h2,.contact-section h2{background:linear-gradient(180deg,#f2f7fc 0%,#c7d4e2 34%,#93a5ba 56%,#cbd8e6 80%,#e9f0f8 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 2px 5px rgba(0,0,0,.45))}
}
/* dark-banner primary buttons in chrome (outranks page-local styles) */
section.page-head .btn-primary{background:var(--chrome);border-color:#c2d0df;color:#0b3e93;box-shadow:inset 0 1px 0 #fff,0 10px 24px -12px rgba(9,30,60,.5)}
section.page-head .btn-primary:hover{background:linear-gradient(180deg,#ffffff,#d6e0ea 55%,#bccadb);border-color:#c2d0df;color:#0b3e93}
/* dark-banner ghost buttons match the site language on every page (outranks page-local styles) */
section.page-head .btn-ghost,main .btn-ghost.on-dark{background:transparent;border-color:rgba(255,255,255,.75);color:#fff}
section.page-head .btn-ghost:hover,main .btn-ghost.on-dark:hover{background:linear-gradient(180deg,#fbfdff,#dfe8f1);border-color:#eef4fb;color:var(--aqua-deep)}
/* ---------- divider: luminous hairline with a set water-drop emblem ---------- */
.pipe-divider{height:36px;position:relative;background:#0a1220;overflow:hidden}
.pipe-divider::before{content:"";position:absolute;left:0;right:0;top:50%;translate:0 -50%;height:2px;background:linear-gradient(90deg,transparent,rgba(110,176,255,.5) 22%,rgba(160,205,255,.85) 50%,rgba(110,176,255,.5) 78%,transparent);box-shadow:0 0 12px rgba(60,140,255,.45);-webkit-mask-image:linear-gradient(90deg,#000 calc(50% - 30px),transparent calc(50% - 13px),transparent calc(50% + 13px),#000 calc(50% + 30px));mask-image:linear-gradient(90deg,#000 calc(50% - 30px),transparent calc(50% - 13px),transparent calc(50% + 13px),#000 calc(50% + 30px));animation:dividerGlow 7s ease-in-out infinite}
/* the TopNotch logo drop: chrome bevel ring, drop-shaped inner highlight, cyan pool */
.pipe-divider::after{content:"";position:absolute;left:50%;top:50%;width:20px;height:26px;translate:-50% -52%;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 158'%3E%3Cdefs%3E%3ClinearGradient id='bev' x1='0' y1='0' x2='.85' y2='1'%3E%3Cstop offset='0' stop-color='%23f2f8ff'/%3E%3Cstop offset='.45' stop-color='%23a8cdf4'/%3E%3Cstop offset='1' stop-color='%233c78c2'/%3E%3C/linearGradient%3E%3ClinearGradient id='body' x1='0' y1='0' x2='0' y2='1'%3E%3Cstop offset='0' stop-color='%235aa6ff'/%3E%3Cstop offset='.5' stop-color='%231a7efb'/%3E%3Cstop offset='1' stop-color='%23093577'/%3E%3C/linearGradient%3E%3ClinearGradient id='hi' x1='0' y1='0' x2='0' y2='1'%3E%3Cstop offset='0' stop-color='%23ffffff'/%3E%3Cstop offset='.5' stop-color='%23dff0ff' stop-opacity='.7'/%3E%3Cstop offset='.85' stop-color='%23bfe4ff' stop-opacity='0'/%3E%3C/linearGradient%3E%3CradialGradient id='cy' cx='50%25' cy='50%25' r='50%25'%3E%3Cstop offset='0' stop-color='%23b4ecff' stop-opacity='.8'/%3E%3Cstop offset='1' stop-color='%23b4ecff' stop-opacity='0'/%3E%3C/radialGradient%3E%3Cpath id='d' d='M60 6C78 38 106 58 106 102a46 46 0 1 1-92 0C14 58 42 38 60 6Z'/%3E%3C/defs%3E%3Cuse href='%23d' fill='url(%23bev)' stroke='%2304122a' stroke-width='4'/%3E%3Cuse href='%23d' fill='url(%23body)' transform='translate(9,14.2) scale(.85)'/%3E%3Cellipse cx='46' cy='128' rx='22' ry='12' fill='url(%23cy)' opacity='.8'/%3E%3Cuse href='%23d' fill='url(%23hi)' transform='translate(30.6,50.2) scale(.44)' opacity='.95'/%3E%3C/svg%3E") center/contain no-repeat;filter:drop-shadow(0 0 7px rgba(60,140,255,.5));animation:dropSwell 7s ease-in-out infinite}
@keyframes dividerGlow{0%,100%{opacity:.55}50%{opacity:1}}
@keyframes dropSwell{0%,100%{scale:.93}50%{scale:1.07}}
/* ---------- license / trust bar: navy diamond-plate band (echoes the brand's steel) ---------- */
.license-bar{background:repeating-linear-gradient(45deg,rgba(150,190,240,.06) 0 2px,transparent 2px 13px),repeating-linear-gradient(-45deg,rgba(150,190,240,.06) 0 2px,transparent 2px 13px),linear-gradient(180deg,#101f36,#0a1424);color:#fff;border-block:1px solid rgba(111,176,255,.28);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 12px 30px -18px rgba(8,20,40,.5)}
.license-bar-inner{display:flex;align-items:center;justify-content:center;gap:.85rem;padding-block:.85rem;text-align:center}
.license-shield{flex:none;display:grid;place-content:center;width:34px;height:34px;border-radius:8px;background:linear-gradient(180deg,#2b8bff,#0d55c8);border:1px solid rgba(160,205,255,.5);box-shadow:inset 0 1px 0 rgba(255,255,255,.3)}
.license-shield svg{width:20px;height:20px;color:#fff}
.license-text{max-width:none;margin:0;font-family:var(--fd);font-weight:600;font-size:clamp(.9rem,2vw,1.1rem);letter-spacing:.01em;line-height:1.35;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:.3rem .7rem;color:#eaf2ff}
.license-text .lb-lic{color:#fff}
.license-text .lb-lic strong{font-weight:800;font-size:1.12em;letter-spacing:.02em;color:#fff}
.license-text .lb-sep{color:rgba(255,255,255,.5);font-weight:400}
@media(max-width:520px){.license-text .lb-sep{display:none}}
/* ---------- services ---------- */
#services{background:var(--silverband)}
.grid{display:grid;gap:var(--s5)}
.grid-3{grid-template-columns:1fr}
.svc-card{position:relative;overflow:hidden;background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--line-2);border-radius:10px;padding:1.6rem 1.5rem;box-shadow:0 12px 30px -20px rgba(23,52,94,.16);transition:transform .3s var(--ease),border-color .3s,box-shadow .3s;display:block}
.svc-card:hover{transform:translateY(-5px);border-color:var(--aqua);border-top-color:var(--aqua);box-shadow:0 20px 44px -22px rgba(26,126,251,.3)}
.svc-card.feature{border:1px solid var(--aqua);border-top:3px solid var(--aqua);background:linear-gradient(180deg,#eef5ff,#eef3f9 70%)}
.svc-card.feature:hover{border-color:var(--aqua);box-shadow:0 20px 44px -22px rgba(26,126,251,.35)}
.svc-tag{position:absolute;top:1.1rem;right:1.1rem;font-family:var(--fd);font-weight:750;font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:#ffffff;background:linear-gradient(180deg,#2b8bff,#0d55c8);padding:.26rem .6rem;border-radius:4px}
.svc-icon{display:grid;place-content:center;width:54px;height:54px;border-radius:13px;margin-bottom:1rem;background:linear-gradient(180deg,#eaf2ff,#dbeafe);border:1px solid #cfe0ff;color:var(--aqua)}
.svc-card.feature .svc-icon{background:linear-gradient(180deg,#1a7efb,#0d55c8);border-color:transparent;color:#fff}
.svc-icon svg{width:29px;height:29px}
.svc-card h3{color:var(--fg)}
.svc-card p{color:var(--muted);margin-top:.5rem;font-size:.96rem}
.svc-more{margin-top:.9rem;font-family:var(--fd);font-weight:700;font-size:.85rem;color:var(--aqua-deep);display:inline-flex;align-items:center;gap:.4rem;opacity:0;transform:translateX(-4px);transition:opacity .3s,transform .3s}
.svc-card:hover .svc-more{opacity:1;transform:none}
.svc-card.feature .svc-more{color:var(--aqua-deep)}
/* ---------- backflow signature ---------- */
.backflow-section{background:radial-gradient(95% 85% at 15% 15%,#123a63,#0a1119 70%);overflow:hidden}
.backflow-grid{display:grid;gap:clamp(2rem,5vw,3.5rem);align-items:center;grid-template-columns:1fr}
.backflow-copy .btn{margin-top:var(--s5)}
.bf-list{display:grid;gap:.7rem;margin-top:var(--s5)}
.bf-list li{display:flex;gap:.7rem;color:var(--muted);font-size:.98rem}
.bf-list li svg{width:20px;height:20px;color:var(--aqua);flex:none;margin-top:.15rem}
.bf-stage{position:relative;background:linear-gradient(180deg,rgba(26,126,251,.05),transparent);border:1px solid var(--line);border-radius:var(--r3);padding:1.1rem;display:grid;place-content:stretch}
/* ---- realistic RPZ backflow assembly (looping) ---- */
.rpz-scene{position:relative;width:100%;aspect-ratio:1440/760;--red:#e0503f;--red-deep:#d23b34}
.rpz-assembly{width:100%;height:100%;overflow:visible}
.rpz-assembly .anno{font-family:var(--fb);font-size:14px;font-weight:600;fill:var(--muted);letter-spacing:.02em}
.rpz-assembly .anno-lead{stroke:#38516f;stroke-width:1.5;fill:none}
/* flow currents */
.rpz-assembly .fwd{stroke:var(--aqua);stroke-width:13;stroke-linecap:round;fill:none;stroke-dasharray:30 26;filter:url(#rpzGlowF);animation:rpz_driftF .9s linear infinite,rpz_gateFwd 6s linear infinite}
.rpz-assembly .bck{stroke:var(--red);stroke-width:13;stroke-linecap:round;fill:none;stroke-dasharray:26 26;filter:url(#rpzGlowR);animation:rpz_driftR .8s linear infinite,rpz_gateBck 6s linear infinite;opacity:0}
@keyframes rpz_driftF{to{stroke-dashoffset:-56}}
@keyframes rpz_driftR{to{stroke-dashoffset:52}}
@keyframes rpz_gateFwd{0%{opacity:.95}32%{opacity:.95}37%{opacity:0}95%{opacity:0}100%{opacity:.95}}
@keyframes rpz_gateBck{0%,34%{opacity:0}38%{opacity:.95}55%{opacity:.95}60%{opacity:0}100%{opacity:0}}
/* spring-loaded check discs */
.rpz-assembly .chk{animation:rpz_disc 6s linear infinite}
@keyframes rpz_disc{0%{transform:translateX(18px)}34%{transform:translateX(18px);animation-timing-function:cubic-bezier(.55,-.2,.8,.2)}38%{transform:translateX(0)}88%{transform:translateX(0);animation-timing-function:ease-out}96%{transform:translateX(18px)}100%{transform:translateX(18px)}}
.rpz-assembly .spr{transform-box:fill-box;transform-origin:100% 50%;animation:rpz_spr 6s linear infinite}
@keyframes rpz_spr{0%{transform:scaleX(.6)}34%{transform:scaleX(.6);animation-timing-function:cubic-bezier(.55,-.2,.8,.2)}38%{transform:scaleX(1)}88%{transform:scaleX(1);animation-timing-function:ease-out}96%{transform:scaleX(.6)}100%{transform:scaleX(.6)}}
/* pressure ring where the surge is stopped at check #2 */
.rpz-assembly .blockring{fill:none;stroke:#ff8f80;stroke-width:3.5;transform-box:fill-box;transform-origin:center;opacity:0;animation:rpz_ring 6s linear infinite}
.rpz-assembly .blockring.r2{animation-delay:.45s;stroke-width:2.5}
@keyframes rpz_ring{0%,38%{transform:scale(.25);opacity:0}40%{opacity:.85}48%{transform:scale(1.7);opacity:0}100%{transform:scale(.25);opacity:0}}
/* zone water + contamination tint (level drops while relief dumps) */
.rpz-assembly .rpz-zonewater{transform-box:fill-box;transform-origin:50% 100%;animation:rpz_zone 6s linear infinite}
.rpz-assembly .rpz-tint{opacity:0;transform-box:fill-box;transform-origin:50% 100%;animation:rpz_tintO 6s linear infinite,rpz_zone 6s linear infinite}
@keyframes rpz_tintO{0%,37%{opacity:0}44%{opacity:.42}78%{opacity:.42}88%{opacity:0}100%{opacity:0}}
@keyframes rpz_zone{0%,58%{transform:scaleY(1)}68%{transform:scaleY(.55)}79%{transform:scaleY(.5)}90%{transform:scaleY(1)}100%{transform:scaleY(1)}}
/* relief valve poppet + discharge + splash */
.rpz-assembly .poppet{animation:rpz_relief 6s ease-in-out infinite}
@keyframes rpz_relief{0%,55%{transform:translateY(0)}60%{transform:translateY(16px)}78%{transform:translateY(16px)}85%{transform:translateY(0)}100%{transform:translateY(0)}}
.rpz-assembly .rdrop{transform-box:fill-box;transform-origin:center;animation:rpz_reliefStream 6s linear infinite}
@keyframes rpz_reliefStream{0%,56%{opacity:0;transform:translateY(0) scaleY(.6)}60%{opacity:1;transform:translateY(8px) scaleY(1)}74%{opacity:1;transform:translateY(46px) scaleY(1.25)}80%{opacity:0;transform:translateY(56px) scaleY(.3)}100%{opacity:0;transform:translateY(56px) scaleY(.3)}}
.rpz-assembly .rd2{animation-delay:-.15s}.rpz-assembly .rd3{animation-delay:-.30s}.rpz-assembly .rd4{animation-delay:-.45s}
.rpz-assembly .splash{fill:none;stroke:#8ecbff;stroke-width:2.5;transform-box:fill-box;transform-origin:center;opacity:0;animation:rpz_splash 6s linear infinite}
.rpz-assembly .splash.s2{animation-delay:.4s;stroke-width:2}
@keyframes rpz_splash{0%,61%{transform:scale(.25);opacity:0}64%{opacity:.75}74%{transform:scale(1.6);opacity:.4}80%{transform:scale(1.9);opacity:0}100%{transform:scale(.25);opacity:0}}
/* phase status labels (crossfade) */
.rpz-phase-wrap{position:absolute;left:0;right:0;top:4%;z-index:6;pointer-events:none;display:flex;justify-content:center}
.rpz-phase{position:absolute;top:0;display:flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;font-family:var(--fb);font-weight:700;font-size:clamp(.68rem,1.5vw,.92rem);letter-spacing:.01em;white-space:nowrap;background:rgba(8,16,27,.82);border:1px solid rgba(255,255,255,.09)}
.rpz-phase .rpz-ic{width:10px;height:10px;border-radius:50%;flex:none}
.rpz-p-fwd{color:var(--aqua-lt);animation:rpz_sFwd 6s linear infinite}.rpz-p-fwd .rpz-ic{background:var(--aqua);box-shadow:0 0 14px var(--aqua-glow)}
.rpz-p-bck{color:#ff8f80;animation:rpz_sBck 6s linear infinite}.rpz-p-bck .rpz-ic{background:var(--red);box-shadow:0 0 14px rgba(224,80,63,.6)}
.rpz-p-rel{color:var(--fg);animation:rpz_sRel 6s linear infinite}.rpz-p-rel .rpz-ic{background:var(--aqua-lt);box-shadow:0 0 14px var(--aqua-glow)}
@keyframes rpz_sFwd{0%{opacity:1}30%{opacity:1}34%{opacity:0}96%{opacity:0}100%{opacity:1}}
@keyframes rpz_sBck{0%,33%{opacity:0}37%{opacity:1}54%{opacity:1}58%{opacity:0}100%{opacity:0}}
@keyframes rpz_sRel{0%,56%{opacity:0}60%{opacity:1}79%{opacity:1}84%{opacity:0}100%{opacity:0}}
/* protected badge */
.rpz-badge{position:absolute;right:3.5%;bottom:6%;z-index:7;display:flex;align-items:center;gap:9px;padding:9px 15px;border-radius:14px;font-family:var(--fd);font-weight:750;font-size:clamp(.72rem,1.5vw,.98rem);letter-spacing:.06em;color:var(--fg);background:linear-gradient(135deg,rgba(26,126,251,.22),rgba(13,74,164,.28));border:1px solid rgba(111,176,255,.4);box-shadow:0 12px 40px rgba(26,126,251,.25);opacity:0;transform:translateY(14px) scale(.96);animation:rpz_badgeIn 6s cubic-bezier(.2,.7,.2,1) infinite}
.rpz-badge .rpz-check{width:26px;height:26px;border-radius:50%;background:var(--aqua);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;box-shadow:0 0 18px var(--aqua-glow);flex:none}
@keyframes rpz_badgeIn{0%,78%{opacity:0;transform:translateY(14px) scale(.96)}86%{opacity:1;transform:translateY(0) scale(1)}98%{opacity:1;transform:translateY(0) scale(1)}100%{opacity:0;transform:translateY(14px) scale(.96)}}
/* ---------- why ---------- */
.why-grid{gap:var(--s5)}
.why-item{display:flex;gap:1.1rem;align-items:flex-start;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:1.4rem 1.5rem;box-shadow:0 12px 30px -20px rgba(23,52,94,.14)}
.why-ic{display:grid;place-content:center;width:46px;height:46px;flex:none;border-radius:12px;background:linear-gradient(180deg,#eaf2ff,#dbeafe);border:1px solid #cfe0ff;color:var(--aqua)}
.why-ic svg{width:24px;height:24px}
.why-item h3{color:var(--fg)}
.why-item p{color:var(--muted);margin-top:.35rem;font-size:.96rem}
/* ---------- work gallery ---------- */
.work-section{background:var(--band)}
.work-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--s4)}
.work-item{position:relative;overflow:hidden;border-radius:var(--r2);border:1px solid var(--line);aspect-ratio:4/3;padding:0;cursor:zoom-in;background:var(--ink-800)}
.work-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.work-item:hover img,.work-item:focus-visible img{transform:scale(1.06)}
.work-cap{position:absolute;left:0;right:0;bottom:0;padding:1.3rem .9rem .75rem;text-align:left;font-family:var(--fd);font-weight:650;font-size:.88rem;color:#fff;background:linear-gradient(0deg,rgba(7,10,12,.92),transparent)}
.work-item::after{content:"";position:absolute;inset:0;border:2px solid transparent;border-radius:var(--r2);transition:border-color .3s}
.work-item:hover::after{border-color:var(--aqua)}
.lightbox{position:fixed;inset:0;z-index:200;display:grid;place-content:center;background:rgba(4,7,9,.94);padding:4vw}
.lightbox[hidden]{display:none}
.lightbox img{max-width:92vw;max-height:88vh;border-radius:var(--r2);box-shadow:var(--shadow)}
.lb-close{position:absolute;top:2vh;right:3vw;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.08);color:#fff;font-size:1.8rem;line-height:1;border:1px solid var(--line-2)}
.lb-close:hover{background:var(--brass)}
/* ---------- reviews: brand-blue panels on white (the client's own signature) ---------- */
.reviews-section{background:var(--silverband)}
.rev-grid{display:grid;grid-template-columns:1fr;gap:var(--s5)}
.rev-card{position:relative;background:linear-gradient(165deg,#2384ff 0%,#1a7efb 45%,#0d55c8 100%);border:1px solid #0d55c8;border-radius:12px;padding:1.7rem 1.6rem;display:flex;flex-direction:column;gap:var(--s4);box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 18px 40px -22px rgba(13,85,200,.45)}
.rev-card::before{content:"\201C";position:absolute;top:.2rem;right:1.1rem;font-family:var(--fd);font-weight:800;font-size:4.6rem;line-height:1;color:rgba(255,255,255,.22);pointer-events:none}
.rev-stars{color:#ffd76a;letter-spacing:.18em;font-size:1.05rem;text-shadow:0 1px 2px rgba(9,40,90,.4)}
.rev-card blockquote{color:#fff;font-size:1rem;line-height:1.6}
.rev-by{display:flex;align-items:center;gap:.7rem;margin-top:auto}
.rev-av{width:40px;height:40px;border-radius:50%;flex:none;display:grid;place-content:center;font-family:var(--fd);font-weight:750;color:var(--aqua-deep);background:var(--chrome);box-shadow:0 2px 8px rgba(9,40,90,.35)}
.rev-by strong{font-family:var(--fd);font-weight:700;display:block;color:#fff}
.rev-by small{color:rgba(234,242,255,.8);font-size:.8rem}
/* ---------- brand band ---------- */
.brand-band{background:#070b12;padding-block:clamp(2.2rem,5vw,3.6rem)}
.brand-band img{max-width:min(1040px,100%);margin-inline:auto;border-radius:var(--r2)}
/* ---------- areas ---------- */
.areas-section{background:var(--band)}
.area-cols{display:grid;grid-template-columns:1fr;gap:var(--s5)}
.area-col{background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--aqua);border-radius:10px;padding:1.5rem;box-shadow:0 12px 30px -20px rgba(23,52,94,.14)}
.area-col h3{color:var(--aqua-deep);margin-bottom:.7rem}
.area-col li{padding:.35rem 0;border-bottom:1px solid var(--line);color:var(--muted);display:flex;align-items:center;gap:.6rem}
.area-col li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--aqua);flex:none}
.area-col li:last-child{border-bottom:0}
/* ---------- faq ---------- */
.faq-section{background:var(--silverband)}
.faq{max-width:860px;margin-inline:auto}
.faq details{border:1px solid var(--line);border-radius:10px;background:var(--panel);margin-bottom:.8rem;overflow:hidden;box-shadow:0 10px 24px -20px rgba(23,52,94,.12)}
.faq summary{list-style:none;cursor:pointer;padding:1.1rem 1.3rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;font-family:var(--fd);font-weight:650;font-size:1.05rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary .chev{width:22px;height:22px;flex:none;color:var(--aqua);transition:transform .3s}
.faq details[open] summary .chev{transform:rotate(180deg)}
.faq .faq-body{padding:0 1.3rem 1.2rem;color:var(--muted)}
/* ---------- contact ---------- */
.contact-section{background:radial-gradient(92% 90% at 85% 15%,#123a63,#0a1119 72%)}
.contact-grid{display:grid;grid-template-columns:1fr;gap:clamp(2rem,5vw,3.5rem)}
.contact-lines{display:grid;gap:var(--s4);margin-top:var(--s6)}
.cline{display:flex;align-items:center;gap:1rem;min-width:0}
.cline>span:last-child{min-width:0}
.cline strong{overflow-wrap:anywhere}
.cl-ic{display:grid;place-content:center;width:48px;height:48px;flex:none;border-radius:12px;background:rgba(26,126,251,.14);border:1px solid var(--line-2);color:var(--aqua-lt)}
.cl-ic svg{width:24px;height:24px}
.cline small{display:block;color:var(--muted-2);font-size:.78rem;text-transform:uppercase;letter-spacing:.1em}
.cline strong{font-family:var(--fd);font-weight:650;font-size:1.16rem}
a.cline:hover strong{color:var(--aqua-lt)}
.quote-form{background:linear-gradient(180deg,var(--ink-800),var(--ink-850));border:1px solid var(--line);border-radius:var(--r3);padding:clamp(1.4rem,3vw,2rem);display:grid;grid-template-columns:1fr 1fr;gap:var(--s4)}
.field{display:flex;flex-direction:column;gap:.4rem;min-width:0}
.field input,.field select,.field textarea{min-width:0;width:100%}
.field-full{grid-column:1/-1}
.field label{font-family:var(--fd);font-weight:600;font-size:.82rem;letter-spacing:.03em;color:var(--muted)}
.field .opt{color:var(--muted-2);font-weight:400}
.field input,.field select,.field textarea{background:var(--ink-950);border:1px solid var(--line-2);border-radius:var(--r1);padding:.72rem .85rem;color:var(--fg);transition:border-color .2s,box-shadow .2s;font-size:.98rem}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--aqua);box-shadow:0 0 0 3px rgba(26,126,251,.25)}
.field textarea{resize:vertical;min-height:104px}
.field.err input,.field.err textarea{border-color:#e0503f}
.quote-form .btn{grid-column:1/-1}
.form-submit[data-state=sending]{opacity:.75;pointer-events:none}
.form-status{grid-column:1/-1;border-radius:var(--r1);padding:.85rem 1rem;font-size:.95rem}
.form-status.ok{background:rgba(26,126,251,.16);border:1px solid var(--aqua);color:var(--aqua-lt)}
.form-status.err{background:rgba(224,80,63,.12);border:1px solid #e0503f;color:#ffb3aa}
/* ---------- footer ---------- */
.site-footer{background:var(--ink-950);border-top:1px solid var(--line);padding-top:var(--s8)}
.brand-logo-foot{height:48px}
.footer-inner{display:grid;grid-template-columns:1fr;gap:var(--s6);padding-bottom:var(--s6)}
.foot-brand p{color:var(--muted);font-size:.95rem;margin-top:.9rem}
.foot-col h4{font-family:var(--fd);font-weight:650;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);margin-bottom:.8rem;font-size:.82rem}
.foot-col li{padding:.28rem 0;color:var(--muted)}
.foot-col a:hover{color:var(--aqua-lt)}
.footer-base{display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;justify-content:space-between;padding-block:var(--s5);border-top:1px solid var(--line);color:var(--muted-2);font-size:.9rem}
.footer-credit{text-align:center;padding-bottom:var(--s6)}
.footer-credit a{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--fd);font-weight:600;letter-spacing:.12em;text-transform:uppercase;font-size:.76rem;color:var(--muted-2);transition:color .25s}
.footer-credit strong{color:var(--muted)}
.footer-credit a:hover{color:#ffb01f}.footer-credit a:hover strong{color:#ff5a1f}
.footer-credit .fiya-flame{height:22px;width:auto;transition:filter .25s}
.footer-credit a:hover .fiya-flame{filter:drop-shadow(0 0 7px rgba(255,90,31,.7))}
/* ---------- mobile call bar ---------- */
.mobile-callbar{display:none}
@media(max-width:899px){
.mobile-callbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:100;align-items:center;justify-content:center;gap:.6rem;background:var(--aqua);color:#ffffff;font-family:var(--fd);font-weight:700;letter-spacing:.02em;font-size:1.05rem;padding:.95rem 1rem;box-shadow:0 -6px 24px rgba(0,0,0,.45);border-top:1px solid rgba(255,255,255,.2)}
body{padding-bottom:58px}.site-footer{padding-bottom:58px}
.brand-logo{height:52px}
/* footer brand centers on small screens (the badge art has uneven transparent padding) */
.foot-brand{text-align:center}
.foot-brand .brand{display:flex;justify-content:center;width:100%}
.foot-brand p{margin-inline:auto}
.brand-logo-foot{height:110px}}
/* ---------- reveal ---------- */
.js [data-reveal]{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease-out),transform .7s var(--ease-out)}
.js [data-reveal].in{opacity:1;transform:none}
/* ---------- responsive ---------- */
@media(min-width:600px){.grid-3{grid-template-columns:1fr 1fr}.area-cols{grid-template-columns:1fr 1fr 1fr}.rev-grid{grid-template-columns:1fr 1fr}}
@media(min-width:900px){
/* centered stacked header: big logo on top, nav + phone centered below */
.site-header{height:var(--header-tall)}
.header-inner{flex-wrap:wrap;align-content:center;justify-content:center;row-gap:.7rem}
.brand{flex-basis:100%}
.brand-logo{height:118px}
.topbar{display:flex}
/* pipe manifolds running out from behind the badge — inline SVGs so the water can flow */
.hdr-pipes{display:block;position:absolute;z-index:-1;top:8px;width:min(30vw,432px);height:124px;pointer-events:none}
.hdr-pipes-l{right:calc(50% + 92px);-webkit-mask-image:linear-gradient(90deg,transparent,#000 56px);mask-image:linear-gradient(90deg,transparent,#000 56px)}
.hdr-pipes-r{left:calc(50% + 92px);-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 56px),transparent);mask-image:linear-gradient(90deg,#000 calc(100% - 56px),transparent)}
/* water converging into the badge: filled bore + sparse glints gliding toward the logo */
.hdr-flow path{stroke-dasharray:18 78;animation:hdrFlow 4s linear infinite}
.hdr-pipes-r .hdr-flow path{animation-duration:4.6s}
@keyframes hdrFlow{to{stroke-dashoffset:96}}
/* soft light breathing out of the badge (the header's echo of the hero's rays) */
.brand{position:relative}
.brand::before{content:"";position:absolute;left:50%;top:50%;translate:-50% -50%;width:150%;height:140%;z-index:-1;pointer-events:none;background:radial-gradient(50% 50% at 50% 50%,rgba(26,126,251,.2),rgba(140,190,255,.09) 55%,transparent 76%);animation:brandHalo 7s ease-in-out infinite alternate}
@keyframes brandHalo{from{opacity:.5;scale:.94}to{opacity:1;scale:1.06}}
.nav{display:flex;justify-content:center;align-items:center}
/* phone button rides the nav row, right of Contact */
.header-call{display:inline-flex;position:relative;top:auto;right:auto;margin-left:.9rem}
.burger{display:none}.mobile-menu{display:none}
/* scrolled: keep the full-size logo and stacked layout — .stuck only deepens the surface */
html{scroll-padding-top:calc(var(--header-tall) + 14px)}
.hero{padding-top:calc(var(--header-tall) + 1.25rem)}
/* inner-page banners: clear the tall fixed header (outranks the page-local .page-head rule) */
section.page-head{padding-top:calc(var(--header-tall) + 2.2rem)}
.grid-3{grid-template-columns:1fr 1fr 1fr}
.hero-grid{grid-template-columns:1.05fr .95fr}
.backflow-grid{grid-template-columns:1.05fr .95fr}
.why-grid{grid-template-columns:1fr 1fr}
.work-grid{grid-template-columns:repeat(4,1fr)}
.rev-grid{grid-template-columns:1fr 1fr 1fr}
.contact-grid{grid-template-columns:.9fr 1.1fr}
.footer-inner{grid-template-columns:1.8fr 1fr 1fr 1.1fr}
/* bigger footer badge; pull its transparent padding out so it sits flush with the text */
.brand-logo-foot{height:150px;margin-left:-11px}}
@media(min-width:900px) and (max-width:1150px){.tb-mid{display:none}}
@media(prefers-reduced-motion:reduce){
*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto}
.js [data-reveal]{opacity:1;transform:none}
.flow-fill::after,.pipe-divider::before,.pipe-divider::after,.hero::after,.sea-rays,.sea-rays i,.sea-caustics,.sea-bubbles .bub,.hdr-flow path,.brand::before{animation:none!important}
.sea-bubbles .bub{opacity:0}
.hdr-flow{opacity:0}
.rpz-assembly .fwd,.rpz-assembly .bck,.rpz-assembly .chk,.rpz-assembly .spr,.rpz-assembly .poppet,.rpz-assembly .rdrop,.rpz-assembly .rpz-tint,.rpz-assembly .rpz-zonewater,.rpz-assembly .blockring,.rpz-assembly .splash,.rpz-p-fwd,.rpz-p-bck,.rpz-p-rel,.rpz-badge{animation:none!important}
.rpz-assembly .fwd{opacity:.95;stroke-dasharray:none}.rpz-assembly .bck,.rpz-assembly .rpz-tint,.rpz-assembly .rdrop,.rpz-assembly .blockring,.rpz-assembly .splash{opacity:0}
.rpz-assembly .chk{transform:translateX(18px)}.rpz-assembly .spr{transform:scaleX(.6)}.rpz-assembly .poppet{transform:translateY(0)}
.rpz-p-fwd{opacity:1}.rpz-p-bck,.rpz-p-rel{opacity:0}.rpz-badge{opacity:1;transform:none}}