/* MAT INSTAL RCR · cald și rece
   Palette sampled from the renders: navy studio canvas, brass, copper,
   and the two signal colors used only where they mean hot or cold. */
:root{
  --canvas:#0d1520;
  --panel:#121c2a;
  --panel-2:#172435;
  --line:#22324a;
  --line-strong:#4a5f7d;
  --text-primary:#eef1f5;
  --text-secondary:#a7b3c4;
  --brass:#d1ac63;
  --hot:#cf3628;
  --hot-hover:#e04434;
  --hot-soft:#f2a093;
  --cold:#2f6fcc;
  --cold-hover:#3b80e0;
  --cold-soft:#9cc2f5;
  --accent-muted:rgba(209,172,99,.55);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --ease-io:cubic-bezier(.65,0,.35,1);
  --f-display:"Bricolage Grotesque",ui-sans-serif,system-ui,sans-serif;
  --f-body:"Figtree",ui-sans-serif,system-ui,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --tshadow:0 1px 2px rgba(5,8,14,.95),0 3px 12px rgba(5,8,14,.78),0 10px 44px rgba(5,8,14,.8);
  --gutter:clamp(56px,7vw,112px);
  --nav-h:68px;
}

*,*::before,*::after{box-sizing:border-box}
html{overflow-x:hidden;overflow-x:clip;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;overflow-x:hidden;overflow-x:clip;background:var(--canvas);color:var(--text-primary);
  font:400 1.0625rem/1.6 var(--f-body);-webkit-font-smoothing:antialiased;
  animation:page-in .9s var(--ease-out) both}
@keyframes page-in{from{opacity:0}to{opacity:1}}
img,svg{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3,.hl{font-family:var(--f-display);font-weight:700;letter-spacing:-.02em;line-height:1.04;margin:0}
p{margin:0}
:focus-visible{outline:2px solid var(--hot-soft);outline-offset:3px;border-radius:6px}
.skip{position:fixed;left:16px;top:-60px;z-index:100;background:var(--text-primary);color:var(--canvas);padding:10px 16px;border-radius:8px;font-weight:600;text-decoration:none;transition:top .3s var(--ease-out)}
.skip:focus{top:16px}
main:focus{outline:none}

/* ---------------------------------------------------------------- ambient */
.ambient{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.glow{position:absolute;width:70vmax;height:70vmax;border-radius:50%;filter:blur(80px);opacity:.10;animation:drift 90s ease-in-out infinite alternate}
.glow-hot{background:radial-gradient(circle,#cf3628 0,transparent 62%);left:-30vmax;top:-20vmax;animation-delay:-20s}
.glow-cold{background:radial-gradient(circle,#2f6fcc 0,transparent 62%);right:-30vmax;bottom:-30vmax;animation-delay:-55s}
@keyframes drift{0%{transform:translate3d(0,0,0)}50%{transform:translate3d(12vmax,8vmax,0)}100%{transform:translate3d(-6vmax,14vmax,0)}}

/* ---------------------------------------------------------------- nav */
.nav{position:fixed;inset:0 0 auto;z-index:40;height:var(--nav-h);display:flex;align-items:center;gap:24px;padding:0 clamp(16px,3vw,40px);
  transition:background-color .5s var(--ease-out),border-color .5s var(--ease-out),backdrop-filter .5s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(13,21,32,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:var(--line)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;margin-right:auto}
.brand{--logo-rcr:#8db3ec}
.logo-house{width:49px;height:48px;flex:none}
.logo-word{width:211px;height:17px;flex:none;color:var(--text-primary)}
.nav-links{display:flex;gap:28px;list-style:none;margin:0;padding:0}
.nav-links a{text-decoration:none;color:var(--text-secondary);font-weight:500;font-size:.95rem;position:relative;padding:6px 0;transition:color .3s var(--ease-out)}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brass);transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease-out)}
.nav-links a:hover{color:var(--text-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-call{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font:600 1rem/1 var(--f-body);background:var(--hot);color:#fff;padding:12px 18px;border-radius:999px;
  transition:background-color .3s var(--ease-out),transform .3s var(--ease-out)}
.nav-call:hover{background:var(--hot-hover);transform:translateY(-1px)}
.nav-call svg{width:18px;height:18px;fill:currentColor}

/* ---------------------------------------------------------------- buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 26px;border-radius:999px;font:600 1.0625rem/1 var(--f-body);
  text-decoration:none;border:0;cursor:pointer;color:#fff;text-shadow:none;
  transition:background-color .3s var(--ease-out),transform .3s var(--ease-out),box-shadow .3s var(--ease-out)}
.btn:hover{transform:translateY(-2px)}
.btn-hot{background:var(--hot);box-shadow:0 10px 30px -12px rgba(207,54,40,.8)}
.btn-hot:hover{background:var(--hot-hover)}
.btn-cold{background:var(--cold);box-shadow:0 10px 30px -12px rgba(47,111,204,.8)}
.btn-cold:hover{background:var(--cold-hover)}
.btn-ghost{background:transparent;color:var(--text-primary);border:1.5px solid var(--line-strong)}
.btn-ghost:hover{border-color:var(--brass)}
.btn-wide{width:100%}
@media (pointer:coarse){.btn,.nav-call{min-height:48px}}

/* ---------------------------------------------------------------- hero */
.hero{height:1100vh}
.stage{background:var(--canvas)}
.stage .scrim{position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 120% 95% at 64% 48%,rgba(8,12,20,0) 52%,rgba(8,12,20,.38) 100%)}
.stage .ring{color:var(--brass);bottom:28px;right:28px}
.band{inset:0;pointer-events:none;text-shadow:var(--tshadow)}
.band-open{opacity:1;visibility:visible}
.band::before{content:"";position:absolute;inset:-4%;pointer-events:none;opacity:calc(.25 + .75*var(--k,1));
  background:radial-gradient(ellipse 46% 62% at 22% 52%,rgba(6,10,17,.66) 0%,rgba(6,10,17,.44) 46%,rgba(6,10,17,0) 76%)}
.band-gauge::before{background:radial-gradient(ellipse 48% 66% at 22% 52%,rgba(6,10,17,.74) 0%,rgba(6,10,17,.52) 50%,rgba(6,10,17,0) 78%)}
.cap{position:absolute;left:var(--gutter);top:50%;transform:translateY(-46%);width:min(560px,40vw);pointer-events:auto}
.band-open .cap{width:min(620px,44vw)}
.kicker{font:500 .78rem/1.3 var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--brass);display:flex;align-items:center;gap:12px;margin-bottom:18px}
.idx{color:var(--text-secondary)}
.band .hl{font-size:clamp(2.6rem,5.2vw,5rem);max-width:11ch}
.band h2{font-size:clamp(2.2rem,4.2vw,4rem);max-width:12ch}
.band .lede{margin-top:22px;font-size:clamp(1.05rem,1.3vw,1.2rem);color:#d5dce6;max-width:40ch}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.w-hot{color:var(--hot-soft)}
.w-cold{color:var(--cold-soft)}

/* band chrome rides --k: kicker first, then the headline entrance, then the lede */
.band .kicker{opacity:clamp(0,calc(var(--k,1)*3),1);transform:translateX(calc((1 - clamp(0,calc(var(--k,1)*3),1))*-16px))}
.band .lede,.band .cta-row{--kl:clamp(0,calc((var(--k,1) - .35)*2.4),1);opacity:var(--kl);transform:translateY(calc((1 - var(--kl))*14px))}
.band-settle .settle-sub{--kl:clamp(0,calc((var(--k,1) - .62)*4),1)}
.band-settle .settle-cta{--kl:clamp(0,calc((var(--k,1) - .78)*5),1)}

/* split text: .w words, .c characters, thresholds written by site.js */
.split .w{display:inline-block;white-space:nowrap}
.split .c{display:inline-block}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* rise: words climb into place, the opening and the settle */
[data-entrance="rise"] .w,[data-entrance="settle"] .w{--kc:clamp(0,calc((var(--k,0) - var(--th,0))*2.6),1);opacity:var(--kc);transform:translateY(calc((1 - var(--kc))*.55em))}
/* slide: characters arrive from the left in reading order, like the valves */
[data-entrance="slide"] .c{--kc:clamp(0,calc((var(--k,0) - var(--th,0))*3),1);opacity:var(--kc);transform:translateX(calc((1 - var(--kc))*-28px))}
/* drop: words come down into place, like the flow meters */
[data-entrance="drop"] .w{--kc:clamp(0,calc((var(--k,0) - var(--th,0))*2.8),1);opacity:var(--kc);transform:translateY(calc((1 - var(--kc))*-26px))}
/* weave: characters rise from below, alternating depth, like the loops */
[data-entrance="weave"] .c{--kc:clamp(0,calc((var(--k,0) - var(--th,0))*2.6),1);opacity:var(--kc);transform:translateY(calc((1 - var(--kc))*var(--jy,20px)))}
/* focus: the line grows toward you as the camera pushes in on the gauge */
[data-entrance="focus"] .w{--kc:clamp(0,calc((var(--k,0) - var(--th,0))*2.6),1);opacity:var(--kc);transform:scale(calc(.8 + .2*var(--kc)));transform-origin:0 70%}

/* pins: a ring that rides its part, from anchors.json */
.pin{position:absolute;left:0;top:0;transform:translate(var(--ax,-999px),var(--ay,-999px));display:flex;align-items:center;gap:10px;
  opacity:clamp(0,calc((var(--k,1) - .2)*3),1)}
.pin i{width:16px;height:16px;margin:-8px 0 0 -8px;border-radius:50%;border:2px solid var(--brass);box-shadow:0 0 0 6px rgba(209,172,99,.14);position:relative}
.pin i::after{content:"";position:absolute;inset:3px;border-radius:50%;background:var(--brass);animation:pin-pulse 2.6s ease-in-out infinite;animation-delay:-1.1s}
@keyframes pin-pulse{0%,100%{opacity:1}50%{opacity:.35}}
.pin b{font:500 .72rem/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-primary);padding:7px 10px;margin-top:-8px;border-radius:8px;
  background:rgba(8,12,20,.6);border:1px solid rgba(209,172,99,.35);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);text-shadow:0 1px 3px rgba(5,8,14,.85);white-space:nowrap}

.scroll-cue{position:absolute;left:var(--gutter);bottom:34px;font:500 .72rem/1 var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-secondary);display:flex;align-items:center;gap:12px;
  opacity:clamp(0,calc(1 - var(--sc,0)*4),1)}
.scroll-cue span{width:1px;height:36px;background:linear-gradient(var(--brass),transparent);position:relative;overflow:hidden}
.scroll-cue span::after{content:"";position:absolute;left:-1px;top:-12px;width:3px;height:12px;background:var(--hot-soft);border-radius:2px;animation:cue 2.4s var(--ease-io) infinite}
@keyframes cue{to{transform:translateY(48px)}}
@media (max-height:560px){.scroll-cue,.pin{display:none}.stage .ring{display:none}}
@media (max-height:560px) and (orientation:landscape){
  .cap,.band-open .cap{top:calc(50% + 10px);width:min(520px,46vw)}
  .band .hl{font-size:clamp(1.7rem,4.4vw,2.5rem)}
  .band h2{font-size:clamp(1.6rem,4vw,2.3rem)}
  .band .lede{font-size:.95rem;margin-top:10px;line-height:1.45}
  .kicker{margin-bottom:8px}
  .band-open .lede{display:none}
}

/* phones and portrait tablets: the vertical set, object up top, words below */
@media (orientation:portrait){
  .cap,.band-open .cap{left:20px;right:20px;width:auto;top:auto;bottom:calc(96px + env(safe-area-inset-bottom));transform:none}
  .band::before,.band-gauge::before{background:linear-gradient(to top,rgba(6,10,17,.84) 0%,rgba(6,10,17,.62) 30%,rgba(6,10,17,0) 50%);inset:0}
  .band .hl{font-size:clamp(2.3rem,10vw,3.4rem)}
  .band h2{font-size:clamp(2rem,8.6vw,3rem)}
  .band .lede{font-size:1rem;margin-top:14px}
  .kicker{margin-bottom:12px}
  .cta-row{margin-top:20px}
  .scroll-cue{display:none}
  .pin b{font-size:.66rem;position:absolute;left:0;top:18px;transform:translateX(-50%);margin:0}
}
@media (orientation:portrait){
  /* the gauge close-up fills the frame: its words need a deeper floor */
  .band.band-gauge::before{background:linear-gradient(to top,rgba(6,10,17,.9) 0%,rgba(6,10,17,.8) 40%,rgba(6,10,17,0) 62%)}
}
@media (orientation:portrait) and (min-width:700px){.cap,.band-open .cap{left:48px;right:auto;width:min(560px,80vw)}}

/* reduced motion: the designed still and every caption settled, as a page */
.stage.seq-static{position:relative;height:auto;min-height:100vh;padding:calc(var(--nav-h) + 40px) 0 80px}
.hero:has(.seq-static){height:auto}
.stage.seq-static .poster{position:absolute;inset:0 0 auto 0;height:100vh}
.stage.seq-static::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(to bottom,rgba(13,21,32,0) 72vh,var(--canvas) 100vh),linear-gradient(90deg,rgba(13,21,32,.94) 0%,rgba(13,21,32,.8) 42%,rgba(13,21,32,.1) 70%)}
.stage.seq-static .band{position:relative;z-index:1;inset:auto;padding:0 var(--gutter);margin-bottom:56px}
.stage.seq-static .band::before,.stage.seq-static .pin,.stage.seq-static .scroll-cue{display:none}
.stage.seq-static .cap{position:relative;left:auto;top:auto;transform:none;width:min(560px,100%)}
.stage.seq-static .band .hl,.stage.seq-static .band h2{max-width:none}
@media (orientation:portrait){
  .stage.seq-static{padding-top:0}
  .stage.seq-static .poster{position:relative;height:62vh}
  .stage.seq-static::after{background:linear-gradient(to bottom,rgba(13,21,32,0) 0%,rgba(13,21,32,0) 50vh,rgba(13,21,32,1) 62vh)}
  .stage.seq-static .band{padding:0 20px}
  .stage.seq-static .band-open{margin-top:-60px}
}

/* ---------------------------------------------------------------- page sections */
main{position:relative;padding-left:var(--gutter)}
section:not(.hero){position:relative;padding:clamp(96px,14vh,160px) clamp(20px,5vw,80px) clamp(96px,14vh,160px) 0}
.sec-head{max-width:820px;margin-bottom:clamp(40px,7vh,72px)}
section h2{font-size:clamp(2.1rem,4.4vw,3.8rem)}
.lede{color:var(--text-secondary);font-size:1.125rem;max-width:52ch}
.node{width:12px;height:12px;border-radius:50%;flex:none;border:2px solid currentColor;box-shadow:0 0 0 5px rgba(255,255,255,.04)}
.node-hot{color:var(--hot)}
.node-cold{color:var(--cold)}

/* the signature: a red and a blue pipe drawn down the whole page */
.pipes{position:absolute;left:0;top:0;width:100%;height:100%;pointer-events:none;overflow:visible}
.pipes path{fill:none;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.pipe-hot{stroke:var(--hot)}
.pipe-cold{stroke:var(--cold)}

/* reveals: the container class prefixes both states so the cascade cannot cancel them */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease-out),transform .9s var(--ease-out)}
.reveal.in{opacity:1;transform:none}
.why-list .why-item.reveal:nth-child(2),.step-list .step.reveal:nth-of-type(2),.work-grid .work-tile.reveal:nth-child(2),.faq-list .qa.reveal:nth-child(2){transition-delay:.09s}
.why-list .why-item.reveal:nth-child(3),.step-list .step.reveal:nth-of-type(3),.work-grid .work-tile.reveal:nth-child(3),.faq-list .qa.reveal:nth-child(3){transition-delay:.18s}
.why-list .why-item.reveal:nth-child(4),.step-list .step.reveal:nth-of-type(4),.faq-list .qa.reveal:nth-child(4){transition-delay:.27s}
.faq-list .qa.reveal:nth-child(5){transition-delay:.36s}
.faq-list .qa.reveal:nth-child(6){transition-delay:.45s}
/* retire the stagger once arrived, at equal or higher specificity than the delays above */
.why-list .why-item.reveal.done,.step-list .step.reveal.done,.work-grid .work-tile.reveal.done,.faq-list .qa.reveal.done{transition-delay:0s!important}

/* ---------------------------------------------------------------- services */
.svc-wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:clamp(32px,6vw,96px);align-items:start}
.svc-media{position:sticky;top:calc(var(--nav-h) + 6vh)}
.svc-frame{position:relative;aspect-ratio:4/3;border-radius:22px;overflow:hidden;background:radial-gradient(ellipse 80% 70% at 50% 60%,#16253a 0%,#0f1826 70%);border:1px solid var(--line)}
.svc-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.04);transition:opacity .8s var(--ease-out),transform 1.4s var(--ease-out)}
.svc-frame img.on{opacity:1;transform:none}
.svc-count{position:absolute;right:18px;bottom:16px;font:500 .78rem/1 var(--f-mono);color:var(--text-secondary);letter-spacing:.1em}
.svc-count b{color:var(--text-primary);font-weight:500}
.svc-list{list-style:none;margin:0;padding:0}
.svc{position:relative;padding:clamp(28px,6vh,56px) 0;border-top:1px solid var(--line);min-height:34vh;display:grid;grid-template-columns:64px 1fr;column-gap:12px;align-content:center}
.svc:last-child{border-bottom:1px solid var(--line)}
.svc-thumb{display:none}
.svc-num{font:500 .85rem/1 var(--f-mono);color:var(--brass);padding-top:10px}
.svc h3{font-size:clamp(1.6rem,2.6vw,2.4rem);transition:color .5s var(--ease-out)}
.svc p{grid-column:2;margin-top:12px;color:var(--text-secondary);max-width:44ch}
.svc::before{content:"";position:absolute;left:-1px;top:-1px;height:2px;width:100%;background:linear-gradient(90deg,var(--hot),var(--cold));transform:scaleX(0);transform-origin:left;transition:transform .9s var(--ease-out)}
.svc-list .svc.active::before{transform:scaleX(1)}
.svc-list .svc.reveal.in:not(.active) h3{color:#8996a8}

/* ---------------------------------------------------------------- floor heating (the interactive moment) */
.floor{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(32px,6vw,96px);align-items:center;--heat:0}
.floor::before{content:"";position:absolute;inset:0 0 0 calc(var(--gutter)*-1);pointer-events:none;opacity:var(--heat);
  background:radial-gradient(ellipse 60% 70% at 70% 50%,rgba(207,54,40,.20),rgba(207,54,40,0) 70%)}
.floor .lede{margin-top:20px}
.hold{position:relative;margin-top:34px;display:inline-flex;align-items:center;gap:16px;background:var(--panel);color:var(--text-primary);border:1.5px solid var(--line-strong);
  border-radius:999px;padding:8px 26px 8px 8px;min-height:64px;font:600 1.0625rem/1 var(--f-body);cursor:pointer;user-select:none;-webkit-user-select:none;touch-action:manipulation;
  -webkit-touch-callout:none;transition:border-color .4s var(--ease-out),transform .3s var(--ease-out)}
.hold:hover{border-color:var(--brass)}
.hold.pressing{transform:scale(.98)}
.hold svg{width:48px;height:48px;transform:rotate(-90deg)}
.hold circle{fill:none;stroke-width:4}
.hold-track{stroke:var(--line)}
.hold-fill{stroke:var(--hot);stroke-linecap:round;stroke-dasharray:132;stroke-dashoffset:calc(132 - 132*var(--heat))}
.floor-status{margin-top:16px;font:500 .8rem/1.4 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--text-secondary)}
.floor-facts{list-style:none;margin:30px 0 0;padding:0;display:grid;gap:12px}
.floor-facts li{padding:14px 18px;border-radius:14px;border:1px solid var(--line);color:var(--text-secondary);opacity:.38;transform:translateX(-6px);
  transition:opacity .7s var(--ease-out),transform .7s var(--ease-out),border-color .7s var(--ease-out)}
.floor-facts b{color:var(--text-primary);font-weight:600}
.floor.lit .floor-facts li{opacity:1;transform:none;border-color:rgba(207,54,40,.45)}
.floor.lit .floor-facts li:nth-child(2){transition-delay:.15s}
.floor.lit .floor-facts li:nth-child(3){transition-delay:.3s}
.floor-plan svg{width:100%;height:auto}
.room{fill:#0f1928;stroke:var(--line-strong);stroke-width:2}
.room-glow{opacity:var(--heat)}
.coil{fill:none;stroke-width:12;stroke-linecap:round;stroke-linejoin:round}
.coil-base{stroke:#24466f}
.coil-heat{stroke-dasharray:var(--coil-len,4200);stroke-dashoffset:calc(var(--coil-len,4200)*(1 - var(--heat)))}
.floor-plan{position:relative}
.temp{display:flex;justify-content:flex-end;align-items:baseline;gap:14px;margin:0 0 14px}
.temp-label{font:500 .74rem/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--text-secondary)}
.temp-num{font:700 clamp(3rem,5vw,4.4rem)/.9 var(--f-display);letter-spacing:-.03em;font-variant-numeric:tabular-nums;color:color-mix(in srgb,var(--hot-soft) calc(var(--heat)*100%),var(--cold-soft))}
.floor-plan svg{margin-top:0}

/* ---------------------------------------------------------------- why */
.why{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(32px,6vw,96px);align-items:start}
.why-figures{position:sticky;top:calc(var(--nav-h) + 8vh);display:grid;gap:clamp(28px,5vh,48px)}
.fig{display:grid;gap:6px;padding-bottom:clamp(20px,4vh,36px);border-bottom:1px solid var(--line)}
.fig-label{font:500 .78rem/1.3 var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--brass)}
.fig-num{font:700 clamp(5rem,11vw,9.5rem)/.9 var(--f-display);letter-spacing:-.04em;font-variant-numeric:tabular-nums;
  background:linear-gradient(180deg,#f4f6f9 0%,#aab6c6 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.fig-word{background:linear-gradient(90deg,var(--hot-soft),#f4f6f9 50%,var(--cold-soft));-webkit-background-clip:text;background-clip:text}
.why-body h2{max-width:18ch}
.why-list{list-style:none;margin:clamp(36px,6vh,56px) 0 0;padding:0;display:grid;gap:0}
.why-item{padding:28px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:24px;align-items:baseline}
.why-item h3{font-size:1.45rem}
.why-item p{color:var(--text-secondary)}

/* ---------------------------------------------------------------- steps */
.step-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(20px,3vw,40px);position:relative}
.step-line{position:absolute;left:0;right:0;top:26px;width:100%;height:8px;overflow:visible}
.step-line path{fill:none;stroke:url(#none);stroke:var(--brass);stroke-width:2;stroke-dasharray:1000;stroke-dashoffset:calc(1000 - 1000*var(--draw,0));vector-effect:non-scaling-stroke;opacity:.7}
.step{position:relative;padding-top:0}
.step-dot{display:grid;place-items:center;width:54px;height:54px;border-radius:50%;background:var(--panel);border:2px solid var(--brass);font:700 1.25rem/1 var(--f-display);color:var(--text-primary);margin-bottom:26px;position:relative;z-index:1}
.step:last-child .step-dot{border-color:var(--hot);box-shadow:0 0 0 8px rgba(207,54,40,.12)}
.step h3{font-size:1.45rem}
.step p{margin-top:10px;color:var(--text-secondary)}

/* ---------------------------------------------------------------- work */
.work{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(32px,6vw,96px);align-items:start}
.work-head{position:sticky;top:calc(var(--nav-h) + 8vh)}
.work-head .lede{margin-top:20px}
.work-head .btn{margin-top:28px}
.work-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.work-tile{position:relative;border-radius:20px;overflow:hidden;background:linear-gradient(160deg,#132034,#0e1726);border:1px solid var(--line);aspect-ratio:1/1}
.work-tile:first-child{grid-column:1/-1;aspect-ratio:16/9}
.work-tile img{width:100%;height:100%;object-fit:cover}
.work-tile.is-empty{background-image:linear-gradient(160deg,#132034,#0e1726),repeating-linear-gradient(0deg,rgba(209,172,99,.05) 0 1px,transparent 1px 28px),repeating-linear-gradient(90deg,rgba(209,172,99,.05) 0 1px,transparent 1px 28px);background-blend-mode:normal}
.work-tile.is-empty::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,rgba(209,172,99,.06) 0 1px,transparent 1px 28px),repeating-linear-gradient(90deg,rgba(209,172,99,.06) 0 1px,transparent 1px 28px)}
.work-sketch{position:absolute;left:14%;top:10%;width:72%;height:60%}
.work-sketch path{fill:none;stroke:rgba(209,172,99,.7);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:900;stroke-dashoffset:900;transition:stroke-dashoffset 2.4s var(--ease-io)}
.work-sketch .s-hot{stroke:var(--hot);stroke-width:3}
.work-sketch .s-cold{stroke:var(--cold);stroke-width:3}
.work-grid .work-tile.in .work-sketch path{stroke-dashoffset:0}
.work-cap{position:absolute;left:20px;right:20px;bottom:18px;display:grid;gap:8px}
.work-cap span{font:600 1.05rem/1.2 var(--f-display)}
.work-cap em{font:500 .7rem/1 var(--f-mono);font-style:normal;letter-spacing:.12em;text-transform:uppercase;color:var(--brass)}

/* ---------------------------------------------------------------- faq */
.faq .sec-head{margin-inline:auto;text-align:center}
.faq .sec-head .kicker{justify-content:center}
.faq-list{max-width:860px;margin:0 auto}
.qa{border-top:1px solid var(--line)}
.qa:last-child{border-bottom:1px solid var(--line)}
.qa summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:26px 4px;font:600 clamp(1.2rem,1.8vw,1.5rem)/1.25 var(--f-display);transition:color .3s var(--ease-out)}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"";flex:none;width:14px;height:14px;border-right:2px solid var(--brass);border-bottom:2px solid var(--brass);transform:rotate(45deg) translate(-3px,-3px);transition:transform .4s var(--ease-out)}
.qa[open] summary::after{transform:rotate(225deg) translate(-3px,-3px)}
.qa summary:hover{color:var(--brass)}
.qa p{padding:0 4px 28px;color:var(--text-secondary);max-width:62ch}
.qa[open] p{animation:qa-in .5s var(--ease-out)}
@keyframes qa-in{from{opacity:0;transform:translateY(-6px)}}

/* ---------------------------------------------------------------- contact */
.contact{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(32px,6vw,96px);align-items:start}
.big-phone{display:block;margin-top:30px;text-decoration:none;font:700 clamp(2.8rem,6.4vw,5.6rem)/1 var(--f-display);letter-spacing:-.03em;white-space:nowrap;transition:color .3s var(--ease-out)}
.big-phone:hover{color:var(--hot-soft)}
.big-phone-label{display:block;font:500 .78rem/1 var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--hot-soft);margin-bottom:12px}
.contact-main .btn{margin-top:28px;max-width:420px}
.contact-meta{margin:40px 0 0;display:grid;gap:0;max-width:520px}
.contact-meta div{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:14px 0;border-top:1px solid var(--line);align-items:baseline}
.contact-meta dt{font:500 .74rem/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--brass)}
.contact-meta dd{margin:0}
.contact-meta a{text-decoration:none;border-bottom:1px solid var(--line-strong);transition:border-color .3s var(--ease-out)}
.contact-meta a:hover{border-color:var(--brass)}
.quote{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:clamp(24px,3vw,40px);display:grid;grid-template-columns:1fr 1fr;gap:16px}
.quote h3{grid-column:1/-1;font-size:1.6rem}
.form-note{grid-column:1/-1;color:var(--text-secondary);font-size:.95rem;margin-top:-6px}
.field{display:grid;gap:8px}
.field-wide,.quote .btn,.form-status{grid-column:1/-1}
.field label{font:500 .74rem/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-secondary)}
.field input,.field select,.field textarea{width:100%;font:400 1rem/1.4 var(--f-body);color:var(--text-primary);background:#0d1520;border:1.5px solid var(--line-strong);border-radius:12px;padding:13px 14px;
  transition:border-color .3s var(--ease-out),box-shadow .3s var(--ease-out)}
.field textarea{resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#7d8a9c}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brass);box-shadow:0 0 0 4px rgba(209,172,99,.15)}
.field input[aria-invalid="true"]{border-color:var(--hot-soft)}
.quote .btn{margin-top:8px}
.form-status{min-height:1.4em;color:var(--text-secondary);font-size:.95rem}
.form-status.ok{color:#bfe3c6}

/* ---------------------------------------------------------------- footer */
.foot{padding:56px clamp(20px,5vw,80px) 48px var(--gutter);border-top:1px solid var(--line);display:grid;grid-template-columns:1fr auto;gap:28px;align-items:end;color:var(--text-secondary);font-size:.95rem}
.foot-brand{display:flex;gap:16px;align-items:flex-start}
.foot-brand .logo-house{width:92px;height:90px;flex:none}
.foot-name{color:var(--text-primary);font:700 1.35rem/1.2 var(--f-display)}
.foot-name span{color:#8db3ec}
.foot-name small{font-size:.7em;color:var(--text-secondary)}
.foot-trade{margin:4px 0 2px;font:700 .8rem/1.3 var(--f-body);letter-spacing:.08em;text-transform:uppercase;color:var(--hot-soft)}
.foot-motto{margin-top:8px;font:500 .74rem/1.3 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--brass)}
.foot-links{display:flex;gap:24px;flex-wrap:wrap}
.foot-links a{text-decoration:none;color:var(--text-primary)}
.foot-links a:hover{color:var(--brass)}
.foot-legal{grid-column:1/-1;font-size:.85rem;color:#8593a6}
.foot-credit{grid-column:1/-1;margin-top:-12px;font:500 .72rem/1.4 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:#8593a6}
.foot-credit a{color:var(--brass);text-decoration:none;font-weight:700;letter-spacing:.14em}
.foot-credit a:hover{color:var(--text-primary);text-decoration:underline;text-underline-offset:3px}

/* ---------------------------------------------------------------- mobile call bar */
.callbar{display:none}
@media (max-width:899px){
  .nav-links{display:none}
  .nav-call span{display:none}
  .nav-call{padding:0;width:46px;height:46px;justify-content:center}
  .callbar{display:grid;grid-template-columns:1fr 1fr;gap:8px;position:fixed;left:0;right:0;bottom:0;z-index:50;padding:8px 10px calc(8px + env(safe-area-inset-bottom));
    background:rgba(13,21,32,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid var(--line)}
  .cb{display:flex;align-items:center;justify-content:center;gap:10px;min-height:52px;border-radius:14px;text-decoration:none;font:600 1.0625rem/1 var(--f-body);color:#fff}
  .cb svg{width:20px;height:20px;fill:currentColor}
  .cb-hot{background:var(--hot)}
  .cb-cold{background:var(--cold)}
  body{padding-bottom:calc(68px + env(safe-area-inset-bottom))}
  .band-open .cta-row,.settle-cta{display:none}
}

/* ---------------------------------------------------------------- narrow layouts */
@media (max-width:899px){
  :root{--gutter:40px;--nav-h:60px}
  main{padding-left:var(--gutter)}
  section:not(.hero){padding-right:20px}
  .svc-wrap,.floor,.why,.work,.contact{grid-template-columns:1fr}
  .svc-media{display:none}
  .svc{grid-template-columns:44px 1fr;min-height:0}
  .svc-thumb{display:block;grid-column:1/-1;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:16px;border:1px solid var(--line);margin-bottom:20px;background:#0f1826}
  .svc-list .svc.reveal.in:not(.active) h3{color:var(--text-primary)}
  .why-figures,.work-head{position:static}
  .why-figures{grid-template-columns:1fr 1fr;order:2}
  .fig-num{font-size:clamp(3.6rem,17vw,5rem)}
  .why-item{grid-template-columns:1fr;gap:8px}
  .step-list{grid-template-columns:1fr;gap:36px}
  .step-list .step{display:grid;grid-template-columns:54px 1fr;column-gap:18px}
  .step-dot{margin-bottom:0;grid-row:span 2}
  .step-line{display:none}
  .step-list::before{content:"";position:absolute;left:26px;top:0;bottom:0;width:2px;background:var(--brass);opacity:.7;transform-origin:top;transform:scaleY(var(--draw,0))}
  .work-grid{grid-template-columns:1fr}
  .work-tile,.work-tile:first-child{aspect-ratio:4/3}
  .faq .sec-head{text-align:left}
  .faq .sec-head .kicker{justify-content:flex-start}
  .quote{grid-template-columns:1fr}
  .big-phone{font-size:clamp(2.4rem,11.5vw,3.6rem)}
  .contact-meta div{grid-template-columns:90px 1fr}
  .foot{grid-template-columns:1fr;padding-left:var(--gutter);padding-right:20px}
  .floor{display:flex;flex-direction:column;align-items:stretch;gap:0}
  .floor-copy{display:contents}
  .floor-copy .kicker{order:1}
  .floor-copy h2{order:2}
  .floor-copy .lede{order:3}
  .floor-plan{order:4;margin-top:8px}
  .temp{justify-content:flex-start}
  .hold{order:5;align-self:flex-start}
  .floor-status{order:6}
  .floor-facts{order:7}
}
@media (max-width:420px){:root{--gutter:34px}}

/* ---------------------------------------------------------------- reduced motion, completely */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important;transition-delay:0s!important}
  .reveal{opacity:1;transform:none}
  .work-sketch path{stroke-dashoffset:0}
  .split .w,.split .c{opacity:1!important;transform:none!important}
}

@media (max-width:420px){.logo-house{width:43px;height:42px}.logo-word{width:186px;height:15px}}

/* ---------------------------------------------------------------- legal: form note, footer links, ANPC, privacy page */
.form-privacy{grid-column:1/-1;font-size:.85rem;color:var(--text-secondary)}
.form-privacy a,.foot-policy a{color:var(--text-primary);text-underline-offset:3px}
.foot-policy{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;font-size:.88rem}
.foot-policy a:hover{color:var(--brass)}
.anpc{display:inline-flex;align-items:center;gap:10px;width:250px;height:50px;padding:0 14px;border:1px solid var(--line-strong);border-radius:8px;background:#fff;color:#16365f !important;text-decoration:none;line-height:1.15}
.anpc b{font:700 1.05rem/1 var(--f-display);letter-spacing:.04em}
.anpc span{font-size:.7rem;font-weight:600}
.legal{max-width:760px;margin:0 auto;padding:calc(var(--nav-h) + 56px) 20px 72px}
.legal h1{font-size:clamp(2rem,5vw,3rem);margin-bottom:12px}
.legal h2{font-size:1.35rem;margin:44px 0 12px;scroll-margin-top:calc(var(--nav-h) + 16px)}
.legal p,.legal li{color:var(--text-secondary)}
.legal p+p{margin-top:12px}
.legal ul{padding-left:1.2em;margin:10px 0}
.legal li+li{margin-top:6px}
.legal strong{color:var(--text-primary);font-weight:600}
.legal a{color:var(--text-primary);text-underline-offset:3px}
.legal .updated{font:500 .74rem/1.3 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--brass)}

/* ---------------------------------------------------------------- loading screen (first visit only, see index.html) */
.loader{position:fixed;inset:0;z-index:200;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;background:var(--canvas);
  opacity:0;visibility:hidden;transition:opacity .5s var(--ease-out),visibility 0s .5s}
.loader.on{opacity:1;visibility:visible;transition:opacity .35s var(--ease-out)}
.loader.out{opacity:0;visibility:hidden;transition:opacity .55s var(--ease-out),visibility 0s .55s}
html.ld{overflow:hidden}
.ld-house{width:112px;height:110px;overflow:visible}
.ld-word{width:210px;height:17px;color:var(--text-primary);--logo-rcr:#8db3ec}
/* the hot and cold pipes fill with the real loading progress and meet in the middle when it is ready */
.ld-pipes path{stroke-dasharray:1;stroke-dashoffset:calc(1 - var(--p,0));transition:stroke-dashoffset .45s var(--ease-out)}
.ld-flame{transform-origin:27.5px 62px;animation:ld-flicker 1.1s ease-in-out infinite alternate}
.ld-drop{transform-origin:64.5px 61px;animation:ld-drip 1.6s ease-in-out infinite}
@keyframes ld-flicker{to{transform:scale(.94,1.06)}}
@keyframes ld-drip{50%{transform:translateY(1.6px)}}