/* ═══════════════════════════════════════════════════════════
   PLUMBLINE
   Porcelain, cast iron and verdigris, with a navy accent set
   opposite the copper running through the photography.
   ═══════════════════════════════════════════════════════════ */

:root{
  --porcelain:#F3F5F4;
  --porcelain-2:#E7EBE9;
  --porcelain-3:#D8DEDB;
  --iron:#14181A;
  --iron-2:#4A5358;
  --iron-3:#5F6A70;   /* small text on porcelain — 5.1:1 */
  --iron-4:#8D989D;   /* small text on iron — 5.9:1 */

  /* Navy sits darker than the copper it replaces, so it needs three tiers:
     a mid tone that clears 3:1 as a graphic on BOTH the porcelain and the
     deep sections, and a dark / light tier for text on each. */
  --navy:#4A72B0;     /* marks & graphics — 4.5:1 on porcelain, 3.1:1 on deep */
  --navy-dk:#22406F;  /* text & strong marks on porcelain — 9.5:1 */
  --navy-br:#8FB3E6;  /* text & marks on deep — 7.2:1 */

  --patina:#2E6F60;
  --deep:#0D2830;
  --deep-2:#143740;

  /* flips per section so accents stay legible on the dark bands */
  --accent:var(--navy);

  --ff-disp:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --ff-body:"Instrument Sans",system-ui,-apple-system,sans-serif;
  --ff-mono:"IBM Plex Mono",ui-monospace,monospace;

  --wrap:1160px;
  --pad:32px;
  /* the spine sits 40px outside the content column */
  --railx:max(30px, calc((100% - var(--wrap)) / 2 - 40px));

  --ease:cubic-bezier(.16,1,.3,1);
  --sec-bg:var(--porcelain);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--porcelain);
  color:var(--iron);
  font:400 1.0625rem/1.65 var(--ff-body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
h1,h2,h3{margin:0}
p{margin:0}
ul,ol,dl,dd{margin:0;padding:0}
li{list-style:none}

::selection{background:var(--navy-dk);color:#fff}

.skip{
  position:fixed;top:8px;left:8px;z-index:200;
  padding:12px 18px;border-radius:2px;
  background:var(--iron);color:var(--porcelain);
  font:500 .875rem/1 var(--ff-body);text-decoration:none;
  transform:translateY(-160%);transition:transform .2s;
}
.skip:focus{transform:none}

/* the focus ring has to clear 3:1 against whatever it lands on, so it
   follows the band it sits in. Order matters: the contact form is a light
   card inside a dark section, so it resets last. */
:focus-visible{outline:2px solid var(--navy-dk);outline-offset:3px}
.sec--dark :focus-visible,.ft :focus-visible{outline-color:var(--navy-br)}
.cta__form :focus-visible{outline-color:var(--navy-dk)}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}
.mono{font-family:var(--ff-mono);font-size:.6875rem;letter-spacing:.13em;text-transform:uppercase}

/* ── shared type ─────────────────────────────────── */
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font:500 .6875rem/1 var(--ff-mono);
  letter-spacing:.18em;text-transform:uppercase;
  color:var(--iron-2);margin-bottom:26px;
}
.eyebrow__dot{
  width:6px;height:6px;flex:none;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(74,114,176,.18);
}
.h1{
  font-family:var(--ff-disp);
  font-size:clamp(3rem,6.8vw,5.5rem);
  font-weight:700;line-height:.92;letter-spacing:-.038em;
}
/* padding must clear the descenders, or overflow:hidden shaves the g's */
.h1 .line{display:block;overflow:hidden;padding-bottom:.22em;margin-bottom:-.22em}
/* nowrap keeps one visual line per .line — the h1 can never exceed two */
/* translate must exceed line-height + padding, else the text peeks below the mask */
.h1 .line__i{display:block;white-space:nowrap;transform:translateY(135%);animation:rise 1s var(--ease) forwards}
.h1 .line:nth-child(1) .line__i{animation-delay:.15s}
.h1 .line:nth-child(2) .line__i{animation-delay:.29s}
.h1 em{font-style:normal;color:var(--navy)}
@keyframes rise{to{transform:none}}

.h2{
  font-family:var(--ff-disp);
  font-size:clamp(2rem,3.5vw,3.35rem);
  font-weight:600;line-height:1.03;letter-spacing:-.03em;
  text-wrap:balance;
}
.stars{color:var(--navy);letter-spacing:.06em}

/* ── buttons & links ─────────────────────────────── */
.btn{
  --bg:var(--iron);--fg:var(--porcelain);
  display:inline-flex;align-items:center;justify-content:center;gap:12px;
  background:var(--bg);color:var(--fg);
  border:0;border-radius:2px;cursor:pointer;
  font:600 .9375rem/1 var(--ff-body);letter-spacing:-.005em;
  padding:17px 26px;text-decoration:none;
  position:relative;overflow:hidden;isolation:isolate;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.btn::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:var(--navy-dk);
  transform:translateY(101%);
  transition:transform .45s var(--ease);
}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px -12px rgba(20,24,26,.5)}
.btn:hover::before{transform:none}
.btn--lg{padding:21px 32px;font-size:1rem}
.btn--sm{padding:12px 18px;font-size:.875rem}
.btn--full{width:100%}
.btn__arw{width:16px;height:16px;flex:none;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;transition:transform .35s var(--ease)}
.btn:hover .btn__arw{transform:translateX(4px)}

.lnk{
  color:var(--iron-2);text-decoration:none;font-size:.9375rem;
  background-image:linear-gradient(var(--navy),var(--navy));
  background-size:0 1px;background-position:0 100%;background-repeat:no-repeat;
  transition:background-size .4s var(--ease),color .3s;
}
.lnk:hover{color:var(--iron);background-size:100% 1px}

/* ── header ──────────────────────────────────────── */
.hdr{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .4s,border-color .4s,backdrop-filter .4s;
  border-bottom:1px solid transparent;
}
.hdr.stuck{
  background:rgba(243,245,244,.82);
  backdrop-filter:blur(14px) saturate(1.4);
  border-bottom-color:rgba(20,24,26,.09);
}
.hdr__in{
  max-width:var(--wrap);margin:0 auto;padding:18px var(--pad);
  display:flex;align-items:center;gap:32px;
}
.mark{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--iron)}
.mark__bob{width:15px;height:26px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linejoin:round}
.mark__bob .mark__dot{fill:var(--accent);stroke:none}
.mark__word{
  font-family:var(--ff-disp);font-weight:700;
  font-size:1.3rem;letter-spacing:-.035em;
}
.nav{display:flex;gap:28px;margin-left:auto}
.nav a{
  color:var(--iron-2);text-decoration:none;font-size:.9375rem;
  position:relative;padding:4px 0;transition:color .25s;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--navy);transform:scaleX(0);transform-origin:left;
  transition:transform .4s var(--ease);
}
.nav a:hover{color:var(--iron)}
.nav a:hover::after{transform:none}
.hdr__act{display:flex;align-items:center;gap:20px}
.tel{display:flex;flex-direction:column;gap:2px;text-decoration:none;text-align:right}
.tel__lab{font:500 .5625rem/1 var(--ff-mono);letter-spacing:.16em;color:var(--navy-dk)}
.tel__num{font:600 .9375rem/1 var(--ff-body);color:var(--iron);letter-spacing:-.01em}

/* ── hero ────────────────────────────────────────── */
.hero{position:relative;padding:170px 0 90px;overflow:hidden}
.hero__in{
  max-width:var(--wrap);margin:0 auto;padding:0 var(--pad);
  display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;
}
.lede{
  margin-top:30px;max-width:33em;
  font-size:1.1875rem;line-height:1.62;color:var(--iron-2);
  text-wrap:pretty;
}
.hero__cta{display:flex;align-items:center;gap:26px;flex-wrap:wrap;margin-top:38px}

.trust{
  display:flex;gap:44px;flex-wrap:wrap;
  margin-top:56px;padding-top:28px;
  border-top:1px solid rgba(20,24,26,.1);
}
.trust dt{font:500 .625rem/1 var(--ff-mono);letter-spacing:.15em;text-transform:uppercase;color:var(--iron-3);margin-bottom:9px}
.trust dd{font-family:var(--ff-disp);font-weight:600;font-size:1.4rem;letter-spacing:-.02em;display:flex;align-items:baseline;gap:8px}
.trust__sub{font:400 .8125rem/1 var(--ff-body);color:var(--iron-2);letter-spacing:0}
.trust .stars{font-size:.85rem}

/* the signature: the man, and the work standing behind him */
.hero__stack{width:100%;max-width:560px;margin-left:auto}
.stack{position:relative;width:100%;aspect-ratio:1/1.1}
.card{
  position:absolute;width:64%;margin:0;
  border-radius:3px;overflow:hidden;
  background:var(--porcelain-3);
  box-shadow:0 12px 32px -22px rgba(20,24,26,.45);
  transition:scale .55s var(--ease),box-shadow .55s var(--ease);
}
.card img{display:block;width:100%;aspect-ratio:3/4;object-fit:cover}
.card--work{top:0;left:0;rotate:-5deg;z-index:1}
.card--me{bottom:0;right:0;rotate:3.5deg;z-index:2}
/* no z-index change: promoting the rear card over the portrait covers his face */
.card:hover{
  scale:1.035;
  box-shadow:0 38px 72px -30px rgba(20,24,26,.55),0 8px 22px -14px rgba(20,24,26,.3);
}
.hero__cap{
  margin-top:26px;text-align:center;
  font:400 .625rem/1 var(--ff-mono);letter-spacing:.15em;text-transform:uppercase;
  color:var(--iron-3);
}
@keyframes fade{to{opacity:1}}

.hero__scroll{
  display:flex;align-items:center;gap:12px;justify-content:center;
  margin-top:74px;
  font:500 .625rem/1 var(--ff-mono);letter-spacing:.2em;text-transform:uppercase;
  color:var(--iron-3);
  opacity:0;animation:fade 1s ease 3s forwards;
}
.hero__scroll svg{width:9px;height:26px;fill:none;stroke:currentColor;stroke-width:1.3;stroke-linecap:round;stroke-linejoin:round;animation:bob 2.4s ease-in-out 3.4s infinite}
@keyframes bob{0%,100%{transform:translateY(-3px)}50%{transform:translateY(3px)}}

/* ── the spine ───────────────────────────────────── */
.page{position:relative}
/* sections are positioned and come later in the DOM, so without a z-index
   their opaque backgrounds paint straight over the rail */
.rail{
  position:absolute;top:-190px;bottom:0;left:var(--railx);width:2px;z-index:1;
  background:rgba(120,132,138,.3);
  /* the line arrives out of the hero rather than starting abruptly */
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 190px);
  mask-image:linear-gradient(180deg,transparent,#000 190px);
}
.rail__fill{
  position:absolute;top:0;left:0;width:100%;height:0;
  /* stops at the mid tone: the rail's lower half runs over light sections,
     where the bright tier would wash out */
  background:linear-gradient(180deg,var(--navy-dk),var(--navy) 60%);
}
.rail__fill::after{
  content:"";position:absolute;left:50%;bottom:0;
  width:7px;height:7px;margin-left:-3.5px;margin-bottom:-3.5px;
  border-radius:50%;background:var(--navy);
  box-shadow:0 0 14px 3px rgba(74,114,176,.5);
}
.joint{
  position:absolute;top:-11px;left:calc(var(--railx) + 1px);
  transform:translateX(-50%);
  width:22px;height:22px;border-radius:50%;
  background:var(--sec-bg);
  border:2px solid var(--accent);
}
.joint::before{
  content:"";position:absolute;inset:5px;border-radius:50%;
  background:var(--accent);opacity:.28;
}
.joint::after{
  content:attr(data-fit);
  position:absolute;top:34px;left:50%;transform:translateX(-50%);
  writing-mode:vertical-rl;
  font:400 .5625rem/1 var(--ff-mono);letter-spacing:.16em;text-transform:uppercase;
  color:var(--iron-3);white-space:nowrap;
}

/* the terminus: the line ends in a valve, on the contact form */
.valve{position:absolute;top:-4px;left:calc(var(--railx) + 1px);transform:translateX(-50%)}
.valve svg{display:block;width:44px;height:63px;overflow:visible}
.valve__stem{stroke:var(--navy-br);stroke-width:3.5}
.valve__body{fill:var(--deep);stroke:var(--navy-br);stroke-width:3.5;stroke-linejoin:round}
.valve__hdl{stroke:var(--navy-br);stroke-width:3.5;stroke-linecap:round}
.valve__hub{fill:var(--navy-br)}

/* ── sections ────────────────────────────────────── */
.sec{position:relative;padding:clamp(96px,10vw,148px) 0;background:var(--sec-bg);scroll-margin-top:84px}
.sec--tint{--sec-bg:var(--porcelain-2)}
.sec--dark{--sec-bg:var(--deep);--accent:var(--navy-br);color:var(--porcelain)}
.sec--dark .h2,.sec--dark h3{color:var(--porcelain)}
.sec--dark .eyebrow{color:#8FA6AC}
.sec--dark .sec__lede{color:#A9BEC3}
.sec--dark .joint::after{color:#7A9199}

.sec__hd{max-width:44rem;margin-bottom:clamp(56px,5.5vw,82px)}
.sec__hd--wide{max-width:52rem}
.sec__hd--split{
  max-width:none;display:flex;justify-content:space-between;
  align-items:flex-end;gap:40px;flex-wrap:wrap;
}
.sec__hd--split>div:first-child{max-width:36rem}
.sec__lede{margin-top:22px;font-size:1.0625rem;color:var(--iron-2);max-width:38em;text-wrap:pretty}

/* ── services ────────────────────────────────────── */
/* dividers live on the cells, not in a 1px gap over a coloured container —
   the container would otherwise show through while the cells are still revealing */
.svc{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid rgba(20,24,26,.1);
  border-left:1px solid rgba(20,24,26,.1);
}
.svc__i{
  border-right:1px solid rgba(20,24,26,.1);
  border-bottom:1px solid rgba(20,24,26,.1);
  padding:38px 34px 40px;transition:background .4s var(--ease);
}
.svc__i:hover{background:#fff}
.svc__ico{
  width:42px;height:42px;margin-bottom:26px;
  fill:none;stroke:var(--iron);stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round;
  transition:stroke .4s;
}
.svc__ico .hot{stroke:var(--navy);transition:stroke .4s}
.svc__i:hover .svc__ico{stroke:var(--navy-dk)}
.svc__i h3{
  font-family:var(--ff-disp);font-weight:600;
  font-size:1.1875rem;line-height:1.25;letter-spacing:-.02em;
  margin-bottom:12px;text-wrap:balance;
}
.svc__list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.svc__list li{
  position:relative;padding-left:22px;
  font-size:.9375rem;color:var(--iron-2);line-height:1.4;
}
/* a short length of pipe for a marker, in the same navy as the hot lines */
.svc__list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:11px;height:2px;border-radius:1px;background:var(--navy);
}

/* ── the standard ────────────────────────────────── */
.std{display:grid;grid-template-columns:.85fr 1fr;gap:clamp(48px,5vw,80px);align-items:start}
.std__fig{margin:0;position:sticky;top:120px}
.std__fig img{width:100%;border-radius:2px}
.std__fig .fig-b{
  width:56%;margin:-16% 0 0 auto;position:relative;
  border:6px solid var(--deep);border-radius:2px;
}
.std__fig figcaption{
  margin-top:20px;display:flex;gap:12px;align-items:baseline;
  font-size:.8125rem;color:#8FA6AC;line-height:1.5;
}
.std__fig figcaption .mono{color:var(--navy-br);flex:none}

.std__list{display:flex;flex-direction:column}
.std__i{padding:32px 0;border-top:1px solid rgba(243,245,244,.13)}
.std__i:first-child{padding-top:0;border-top:0}
.std__i h3{
  font-family:var(--ff-disp);font-weight:600;
  font-size:1.4rem;letter-spacing:-.025em;margin-bottom:14px;
}
.std__i p{color:#A9BEC3;font-size:1rem;line-height:1.66;max-width:38em}
.spec{display:flex!important;flex-wrap:wrap;gap:8px;margin-top:18px}
.spec span{
  font:500 .625rem/1 var(--ff-mono);letter-spacing:.12em;text-transform:uppercase;
  color:var(--navy-br);
  border:1px solid rgba(143,179,230,.34);border-radius:2px;
  padding:7px 10px;
}

.warranty{
  margin-top:clamp(64px,6vw,90px);
  display:flex;gap:30px;align-items:flex-start;
  padding:36px 40px;border-radius:2px;
  background:var(--deep-2);
  border:1px solid rgba(143,179,230,.22);
}
.warranty__seal{width:56px;height:56px;flex:none;fill:none;stroke:var(--navy-br);stroke-width:1.6}
.warranty__seal .tick{stroke:var(--navy-br);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.warranty h3{
  font-family:var(--ff-disp);font-weight:600;font-size:1.25rem;
  letter-spacing:-.02em;margin-bottom:10px;
}
.warranty p{color:#A9BEC3;font-size:.9375rem;line-height:1.62}

/* ── before / after ──────────────────────────────── */
.ba__set{display:flex;flex-direction:column;gap:clamp(56px,5vw,80px)}
.ba{margin:0}
.ba__stage{
  position:relative;aspect-ratio:3/2;overflow:hidden;border-radius:2px;
  background:var(--porcelain-3);cursor:ew-resize;
  --p:50%;
}
.ba__stage:focus-within{outline:2px solid var(--navy-dk);outline-offset:4px}
.ba__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ba__clip{position:absolute;inset:0;clip-path:inset(0 calc(100% - var(--p)) 0 0)}
.ba__bar{position:absolute;top:0;bottom:0;left:var(--p);width:2px;margin-left:-1px;background:var(--porcelain);pointer-events:none}
.ba__grip{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:52px;height:52px;border-radius:50%;
  background:var(--porcelain);
  box-shadow:0 6px 22px -6px rgba(0,0,0,.55);
  display:grid;place-items:center;
}
.ba__grip::before,.ba__grip::after{
  content:"";position:absolute;
  width:0;height:0;border:5px solid transparent;
}
.ba__grip::before{border-right-color:var(--iron);left:11px}
.ba__grip::after{border-left-color:var(--iron);right:11px}
.ba__range{
  position:absolute;inset:0;width:100%;height:100%;
  margin:0;opacity:0;cursor:ew-resize;appearance:none;-webkit-appearance:none;
}
.ba__range::-webkit-slider-thumb{-webkit-appearance:none;width:52px;height:100%}
.ba__range::-moz-range-thumb{width:52px;height:100%;border:0}
.ba__tag{
  position:absolute;top:16px;pointer-events:none;
  font:500 .625rem/1 var(--ff-mono);letter-spacing:.15em;text-transform:uppercase;
  padding:8px 11px;border-radius:2px;
  background:rgba(13,40,48,.72);color:var(--porcelain);
  backdrop-filter:blur(6px);
}
.ba__tag--b{left:16px}
.ba__tag--a{right:16px}

.ba figcaption{
  margin-top:22px;display:flex;justify-content:space-between;
  align-items:baseline;gap:24px;flex-wrap:wrap;
}
.ba figcaption strong{
  font-family:var(--ff-disp);font-weight:600;font-size:1.25rem;
  letter-spacing:-.022em;
}
/* separated by space, not by dots: a wrapped line would otherwise
   begin with a dangling separator */
.meta{display:flex;flex-wrap:wrap;gap:7px 22px}
.meta span{
  font:400 .625rem/1.4 var(--ff-mono);letter-spacing:.12em;text-transform:uppercase;
  color:var(--iron-3);
}

/* ── reviews ─────────────────────────────────────── */
.score{display:flex;flex-direction:column;align-items:flex-end;gap:4px}
.score__n{font-family:var(--ff-disp);font-weight:700;font-size:3.4rem;line-height:1;letter-spacing:-.04em}
.stars--lg{font-size:1rem}
.score__src{color:var(--iron-3);margin-top:6px}

.revs{columns:3;column-gap:24px}
.rev{
  break-inside:avoid;margin:0 0 24px;
  padding:32px 30px;background:#fff;border-radius:2px;
  border:1px solid rgba(20,24,26,.08);
  transition:transform .45s var(--ease),box-shadow .45s var(--ease);
}
.rev:hover{transform:translateY(-3px);box-shadow:0 18px 40px -22px rgba(20,24,26,.4)}
.rev p{font-size:1rem;line-height:1.62;text-wrap:pretty}
.rev footer{margin-top:20px;padding-top:16px;border-top:1px solid rgba(20,24,26,.09)}
.rev cite{
  display:block;font-style:normal;font-weight:600;font-size:.9375rem;margin-bottom:8px;
}
.rev--who{padding:0;overflow:hidden;background:var(--deep);border-color:transparent}
.rev--who img{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:center 22%}
.rev__whotx{padding:28px 30px 30px}
.rev--who p{color:var(--porcelain);font-size:1rem;line-height:1.6}
.rev--who footer{border-top-color:rgba(243,245,244,.15)}
.rev--who cite{color:var(--porcelain)}
.rev--who .meta span{color:#8FA6AC}

/* ── process ─────────────────────────────────────── */
.proc{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(20,24,26,.12);
  border-left:1px solid rgba(20,24,26,.12);
}
.proc__i{
  border-right:1px solid rgba(20,24,26,.12);
  border-bottom:1px solid rgba(20,24,26,.12);
  padding:34px 28px 30px;
  display:flex;flex-direction:column;gap:0;
  position:relative;
}
.proc__n{
  display:block;color:var(--navy-dk);font-weight:500;
  font-size:.6875rem;margin-bottom:34px;
}
.proc__i h3{
  font-family:var(--ff-disp);font-weight:600;font-size:1.1875rem;
  letter-spacing:-.02em;line-height:1.24;margin-bottom:12px;text-wrap:balance;
}
.proc__i p{font-size:.9375rem;color:var(--iron-2);line-height:1.6;flex:1}
.proc__t{display:block;margin-top:24px;color:var(--iron-3)}

/* ── contact ─────────────────────────────────────── */
.cta__grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:clamp(48px,5.5vw,90px);align-items:start}
.cta__lede{margin-top:22px;color:#A9BEC3;font-size:1.0625rem;line-height:1.62;max-width:32em;text-wrap:pretty}
.cta__pts{margin-top:36px;display:flex;flex-direction:column;gap:14px}
.cta__pts li{display:flex;align-items:center;gap:13px;font-size:.9375rem;color:var(--porcelain)}
.cta__pts svg{width:20px;height:20px;flex:none;fill:none;stroke:var(--navy-br);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}

.cta__emg{
  margin-top:44px;padding:22px 24px;border-radius:2px;
  background:rgba(74,114,176,.14);
  border-left:2px solid var(--navy-br);
}
.cta__emg p{font-size:.9375rem;line-height:1.6;color:#CFDDE0}
.cta__emg strong{color:var(--porcelain)}
.cta__emg a{color:var(--navy-br);font-weight:600;text-decoration:none;border-bottom:1px solid rgba(143,179,230,.4)}
.cta__emg a:hover{border-bottom-color:var(--navy-br)}

.cta__form{background:var(--porcelain);border-radius:2px;padding:clamp(30px,3vw,44px)}
.f__row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.f{display:flex;flex-direction:column;margin-bottom:20px;min-width:0}
.f--set{border:0;padding:0}
/* direct children only — the urgency chips are labels too, and would
   otherwise inherit the mono uppercase treatment */
.f>label,.f>legend{
  font:500 .625rem/1 var(--ff-mono);letter-spacing:.14em;text-transform:uppercase;
  color:var(--iron-2);margin-bottom:10px;padding:0;
}
.f__opt{color:var(--iron-3);letter-spacing:.1em}
.f input[type=text],.f input[type=tel],.f input[type=email],.f textarea{
  font:400 1rem/1.5 var(--ff-body);color:var(--iron);
  background:transparent;
  /* 3.4:1 — a field's boundary is a UI component under 1.4.11 */
  border:0;border-bottom:1px solid rgba(20,24,26,.5);
  padding:11px 0;border-radius:0;
  transition:border-color .3s;
}
.f textarea{resize:vertical;min-height:96px}
.f input::placeholder,.f textarea::placeholder{color:var(--iron-3);opacity:1}
.f input:focus,.f textarea:focus{outline:0;border-bottom-color:var(--navy-dk);border-bottom-width:2px;margin-bottom:-1px}
.f.is-bad input,.f.is-bad textarea{border-bottom-color:#B4402F}
.f__err{
  font:400 .75rem/1.4 var(--ff-body);color:#B4402F;
  margin-top:8px;display:none;
}
.f.is-bad .f__err{display:block}

.urg{display:flex;gap:8px;flex-wrap:wrap}
.urg__o{margin:0;cursor:pointer}
.urg__o input{position:absolute;opacity:0;width:0;height:0}
.urg__o span{
  display:block;padding:11px 15px;border-radius:2px;
  border:1px solid rgba(20,24,26,.5);
  font:500 .875rem/1 var(--ff-body);color:var(--iron-2);
  transition:all .28s var(--ease);
}
.urg__o:hover span{border-color:rgba(20,24,26,.75)}
.urg__o input:checked+span{background:var(--iron);border-color:var(--iron);color:var(--porcelain)}
.urg__o input:focus-visible+span{outline:2px solid var(--navy-dk);outline-offset:2px}

.cta__form .btn{margin-top:12px}
.f__note{margin-top:18px;font-size:.8125rem;color:var(--iron-3);line-height:1.5;text-align:center}
.f__done{
  margin-top:18px;display:flex;align-items:center;gap:11px;
  padding:15px 17px;border-radius:2px;
  background:rgba(46,111,96,.1);
  font-size:.9375rem;color:var(--patina);font-weight:500;
}
.f__done svg{width:19px;height:19px;flex:none;fill:none;stroke:var(--patina);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.f__done[hidden]{display:none}

/* ── footer ──────────────────────────────────────── */
.ft{background:var(--iron);--accent:var(--navy-br);color:var(--porcelain);padding:76px 0 34px}
.ft__in{display:grid;grid-template-columns:1fr 2fr;gap:56px;align-items:start}
.mark--ft{color:var(--porcelain)}
.ft__brand p{margin-top:16px;color:var(--iron-4);font-size:.9375rem;max-width:22em;line-height:1.55}
.ft__cols{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.ft__cols dt{
  font:500 .625rem/1 var(--ff-mono);letter-spacing:.15em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;
}
.ft__cols dd{font-size:.9375rem;color:#B9C2C6;margin-bottom:6px}
.ft__cols dd.mono{color:var(--iron-4);font-size:.625rem;line-height:1.7}
.ft__cols a{color:var(--porcelain);text-decoration:none;border-bottom:1px solid rgba(243,245,244,.22)}
.ft__cols a:hover{border-bottom-color:var(--navy-br)}
.ft__base{
  margin-top:64px;padding-top:26px;
  border-top:1px solid rgba(243,245,244,.12);
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.ft__base p{color:var(--iron-4)}

/* ── scroll reveal ───────────────────────────────── */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ── responsive ──────────────────────────────────── */
@media (max-width:1239px){
  .rail,.joint,.valve{display:none}
}
@media (max-width:1100px){
  .nav{display:none}
  .hdr__act{margin-left:auto}
  /* below 706px the desktop clamp bottoms out at its 3rem floor, so every
     phone got the same 48px. Re-fluid it: the upper bound is 6.8vw measured
     at 1100px, so the curve meets the desktop one exactly at the breakpoint. */
  .h1{font-size:clamp(3.25rem,2.45vw + 2.99rem,4.675rem)}
  .hero{padding:132px 0 72px}
  .hero__in{grid-template-columns:1fr;gap:52px}
  .hero__stack{order:2;max-width:460px;margin:0 auto}
  .std{grid-template-columns:1fr}
  .std__fig{position:static;max-width:520px}
  .cta__grid{grid-template-columns:1fr}
  .revs{columns:2}
  .svc{grid-template-columns:repeat(2,1fr)}
  .proc{grid-template-columns:repeat(2,1fr)}
  .ft__in{grid-template-columns:1fr;gap:44px}
}
@media (max-width:720px){
  :root{--pad:22px}
  body{font-size:1rem}
  .tel{display:none}
  .hero{padding:108px 0 68px}
  .hero__in{gap:44px}
  .hero__scroll{display:none}

  /* the eyebrow wraps on narrow phones; /1 would collide the two lines,
     and the centred dot would ride between them */
  .hero .eyebrow{align-items:flex-start;line-height:1.55;margin-bottom:24px}
  .hero .eyebrow__dot{margin-top:.34em}

  /* six lines of lede is a wall; 17px pulls it back to four or five */
  .lede{margin-top:28px;font-size:1.0625rem;line-height:1.58}

  /* the phone number is the emergency action — stack it under the button
     at a thumb-sized target instead of letting it wrap beside it */
  .hero__cta{flex-direction:column;align-items:stretch;gap:16px;margin-top:36px}
  .hero__cta .lnk{
    align-self:center;
    display:inline-flex;align-items:center;justify-content:center;
    min-height:46px;padding-inline:8px;
  }

  /* three facts never fit two columns cleanly — one always orphans.
     Set them as a data plate: stamped label, value, hairline between. */
  .trust{display:block;gap:0;margin-top:42px;padding-top:0;border-top:0}
  .trust__i{
    min-width:0;
    display:flex;align-items:baseline;justify-content:space-between;gap:18px;
    padding:16px 0;
    border-top:1px solid rgba(20,24,26,.1);
  }
  .trust__i:last-child{border-bottom:1px solid rgba(20,24,26,.1)}
  .trust dt{margin-bottom:0}
  .trust dd{font-size:1.25rem}

  .stack{aspect-ratio:1/1.02}
  .hero__cap{margin-top:22px;letter-spacing:.12em;text-wrap:balance}

  .svc{grid-template-columns:1fr}
  .revs{columns:1}
  .proc{grid-template-columns:1fr}
  .ba__stage{aspect-ratio:4/3}
  .ba__grip{width:44px;height:44px}
  .f__row{grid-template-columns:1fr;gap:0}
  .warranty{flex-direction:column;gap:20px;padding:28px 24px}
  .sec__hd--split{align-items:flex-start}
  .score{align-items:flex-start}
  .ft__cols{grid-template-columns:1fr 1fr;gap:28px}
  .btn--lg{width:100%}
  .std__fig .fig-b{width:64%}
}

/* ── reduced motion ──────────────────────────────── */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;animation-delay:0ms!important;
    animation-iteration-count:1!important;transition-duration:.001ms!important;
  }
  .reveal{opacity:1;transform:none}
  .h1 .line__i{transform:none}
  .hero__scroll{opacity:1}
  /* the shadow still answers the hover; the scale would just snap */
  .card:hover{scale:1}
}