/* ==========================================================================
   Clark Stapleton Plumbing & Heating — landing page
   Design system
   ========================================================================== */

:root{
  /* Ink scale — deep, cool, expensive */
  --ink:        #080C12;
  --ink-1:      #0D131B;
  --ink-2:      #141C27;
  --ink-3:      #1D2836;
  --ink-line:   rgba(255,255,255,.10);
  --ink-line-2: rgba(255,255,255,.16);

  /* Light scale — warm paper, never clinical white */
  --bone:       #F7F5F2;
  --bone-2:     #EFECE7;
  --paper:      #FFFFFF;
  --rule:       rgba(8,12,18,.10);
  --rule-2:     rgba(8,12,18,.16);

  /* Brand — lifted straight from their logo */
  --ember:      #F79009;   /* flame */
  --ember-lo:   #FFB43D;
  --ember-hi:   #E06B04;
  --flow:       #2E6FB7;   /* water */
  --flow-lo:    #8CC9F0;
  --leaf:       #5BA82F;   /* house / renewables */
  --leaf-lo:    #8CD25F;

  /* Text */
  --tx:         #0B1119;
  --tx-2:       #46525F;
  --tx-3:       #6C7885;
  --tx-inv:     rgba(255,255,255,.95);
  --tx-inv-2:   rgba(255,255,255,.66);
  --tx-inv-3:   rgba(255,255,255,.44);

  /* System */
  --r-xs: 6px;  --r-sm: 10px; --r-md: 14px; --r-lg: 20px; --r-xl: 28px; --r-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(8,12,18,.06), 0 2px 8px rgba(8,12,18,.05);
  --shadow-md: 0 2px 4px rgba(8,12,18,.05), 0 12px 32px rgba(8,12,18,.09);
  --shadow-lg: 0 4px 8px rgba(8,12,18,.05), 0 28px 64px rgba(8,12,18,.14);
  --shadow-ember: 0 10px 30px rgba(224,107,4,.28);

  --pad: clamp(20px, 5vw, 64px);
  --gap: clamp(24px, 3.5vw, 48px);
  --sec: clamp(72px, 9vw, 136px);

  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-d: "Inter Tight", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ---------- Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
@media (prefers-reduced-motion:reduce){ html{ scroll-behavior:auto; } }
body{
  margin:0; background:var(--bone); color:var(--tx);
  font-family:var(--font); font-size:16.5px; line-height:1.6;
  font-feature-settings:"cv05" 1,"ss03" 1;
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg,video{ max-width:100%; display:block; }
button,input,select,textarea{ font:inherit; color:inherit; }
button{ background:none; border:0; cursor:pointer; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{ margin:0; font-family:var(--font-d); font-weight:640; letter-spacing:-.032em; line-height:1.06; }
p{ margin:0; }
::selection{ background:var(--ember); color:#fff; }
:focus-visible{ outline:2px solid var(--ember); outline-offset:3px; border-radius:4px; }

/* ---------- Type scale ---------- */
.h-xxl{ font-size:clamp(2.5rem, 5.5vw, 4.5rem); }
.h-xl { font-size:clamp(2.1rem, 4.6vw, 3.5rem); }
.h-lg { font-size:clamp(1.6rem, 2.9vw, 2.35rem); }
.h-md { font-size:clamp(1.25rem, 1.9vw, 1.55rem); letter-spacing:-.024em; }
.h-sm { font-size:1.08rem; letter-spacing:-.018em; font-weight:620; }
.lede{ font-size:clamp(1.02rem, 1.35vw, 1.22rem); line-height:1.58; color:var(--tx-2); }
.lede-inv{ color:var(--tx-inv-2); }
.small{ font-size:.895rem; line-height:1.55; }
.tiny{ font-size:.79rem; line-height:1.5; }
.num{ font-variant-numeric:tabular-nums; letter-spacing:-.03em; }

.eyebrow{
  display:inline-flex; align-items:center; gap:9px;
  font-size:.715rem; font-weight:640; letter-spacing:.16em; text-transform:uppercase;
  color:var(--tx-3);
}
.eyebrow-inv{ color:var(--tx-inv-3); }
.eyebrow::before{
  content:""; width:20px; height:1.5px; background:var(--ember); flex:none; border-radius:2px;
}

/* ---------- Layout ---------- */
.wrap{ width:100%; max-width:1240px; margin-inline:auto; padding-inline:var(--pad); }
.wrap-nar{ max-width:900px; }
.sec{ padding-block:var(--sec); position:relative; }
.sec-dark{ background:var(--ink); color:var(--tx-inv); }
.sec-ink2{ background:var(--ink-1); color:var(--tx-inv); }
.sec-paper{ background:var(--paper); }
.sec-bone{ background:var(--bone); }
.sec-head{ max-width:760px; margin-bottom:clamp(36px,5vw,60px); }
.sec-head .h-xl{ margin-top:16px; }
.sec-head .lede{ margin-top:18px; }
.sec-dark .lede, .sec-ink2 .lede{ color:var(--tx-inv-2); }
.grid{ display:grid; gap:var(--gap); }
.center{ text-align:center; margin-inline:auto; }

/* ---------- Buttons ---------- */
.btn{
  --bg:var(--ember); --fg:#0B0704;
  position:relative; display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:15px 26px; border-radius:var(--r-pill);
  background:var(--bg); color:var(--fg);
  font-weight:620; font-size:.955rem; letter-spacing:-.012em; white-space:nowrap;
  transition:transform .32s var(--ease-out), box-shadow .32s var(--ease-out), background .2s;
  box-shadow:var(--shadow-ember);
  isolation:isolate; overflow:hidden;
}
.btn::after{
  content:""; position:absolute; inset:0; z-index:-1; opacity:0;
  background:linear-gradient(105deg,var(--ember-lo),var(--ember));
  transition:opacity .3s;
}
.btn:hover{ transform:translateY(-2px); box-shadow:0 14px 38px rgba(224,107,4,.38); }
.btn:hover::after{ opacity:1; }
.btn:active{ transform:translateY(0); }
.btn-lg{ padding:18px 32px; font-size:1.02rem; }
.btn-ghost{
  --bg:transparent; --fg:var(--tx); box-shadow:none;
  border:1.5px solid var(--rule-2);
}
.btn-ghost::after{ display:none; }
.btn-ghost:hover{ background:rgba(8,12,18,.04); box-shadow:none; border-color:var(--rule-2); }
.btn-ghost-inv{ --fg:var(--tx-inv); border-color:var(--ink-line-2); }
.btn-ghost-inv:hover{ background:rgba(255,255,255,.07); }
.btn-ink{ --bg:var(--ink); --fg:#fff; box-shadow:var(--shadow-md); }
.btn-ink:hover{ box-shadow:var(--shadow-lg); }
.btn-ink::after{ background:linear-gradient(105deg,var(--ink-3),var(--ink-2)); }
.btn ico{ display:inline-flex; }
.btn svg{ width:17px; height:17px; }

/* Arrow nudge */
.btn .arw{ transition:transform .3s var(--ease-out); }
.btn:hover .arw{ transform:translateX(3px); }

/* ---------- Chips / pills ---------- */
.chip{
  display:inline-flex; align-items:center; gap:7px;
  padding:7px 13px; border-radius:var(--r-pill);
  background:rgba(8,12,18,.05); border:1px solid var(--rule);
  font-size:.79rem; font-weight:560; color:var(--tx-2); letter-spacing:-.005em;
}
.chip-inv{ background:rgba(255,255,255,.06); border-color:var(--ink-line); color:var(--tx-inv-2); }
.chip .dot{ width:6px; height:6px; border-radius:50%; background:var(--leaf); flex:none; }
.chip .dot.live{ animation:pulse 2.4s infinite; }
@keyframes pulse{
  0%,100%{ box-shadow:0 0 0 0 rgba(91,168,47,.55); }
  50%{ box-shadow:0 0 0 6px rgba(91,168,47,0); }
}

/* ==========================================================================
   Thermal scroll rail — the signature interaction
   ========================================================================== */
.thermo{
  position:fixed; top:50%; right:22px; transform:translateY(-50%);
  z-index:60; display:none; pointer-events:none;
}
@media (min-width:1180px){ .thermo{ display:block; } }
.thermo-track{
  width:4px; height:200px; border-radius:var(--r-pill);
  background:rgba(255,255,255,.14); overflow:hidden; position:relative;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);
  transition:background .5s;
}
body.on-light .thermo-track{ background:rgba(8,12,18,.09); box-shadow:inset 0 0 0 1px rgba(8,12,18,.05); }
.thermo-fill{
  position:absolute; inset:auto 0 0 0; height:0%;
  background:linear-gradient(to top, var(--ember-hi), var(--ember) 42%, var(--ember-lo) 68%, var(--flow-lo));
  border-radius:var(--r-pill);
  transition:height .18s linear;
}
.thermo-read{
  margin-top:12px; text-align:center;
  font-size:.68rem; font-weight:680; letter-spacing:.06em;
  color:var(--tx-inv-3); font-variant-numeric:tabular-nums;
  transition:color .5s;
}
body.on-light .thermo-read{ color:var(--tx-3); }
.thermo-read b{ display:block; font-size:.86rem; color:var(--ember); letter-spacing:-.02em; }
.thermo-cap{
  writing-mode:vertical-rl; text-orientation:mixed;
  font-size:.6rem; letter-spacing:.22em; text-transform:uppercase;
  color:var(--tx-inv-3); margin:0 auto 12px; display:block; text-align:center;
}
body.on-light .thermo-cap{ color:var(--tx-3); }

/* ==========================================================================
   Header
   ========================================================================== */
.topbar{
  background:var(--ink); color:var(--tx-inv-2);
  border-bottom:1px solid var(--ink-line);
  font-size:.775rem; position:relative; z-index:52;
}
.topbar-in{ display:flex; align-items:center; justify-content:space-between; gap:20px; height:40px; }
.topbar-l{ display:flex; align-items:center; gap:20px; min-width:0; }
.topbar-i{ display:inline-flex; align-items:center; gap:7px; white-space:nowrap; }
.topbar-i svg{ width:13px; height:13px; opacity:.6; flex:none; }
.topbar-r{ display:flex; align-items:center; gap:18px; }
.topbar a:hover{ color:#fff; }
@media (max-width:860px){ .topbar-l .hide-sm{ display:none; } }
@media (max-width:600px){ .topbar-r{ display:none; } }

.hdr{
  position:sticky; top:0; z-index:50;
  background:rgba(8,12,18,.9); backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--ink-line);
  transition:background .35s, border-color .35s, box-shadow .35s;
}
.hdr.stuck{ background:rgba(8,12,18,.97); box-shadow:0 12px 34px rgba(0,0,0,.34); }
.hdr-in{ display:flex; align-items:center; gap:clamp(14px,2.2vw,30px); height:74px; }
.brand{ display:flex; align-items:center; gap:11px; flex:none; }
.brand-mark{ width:38px; height:38px; flex:none; }
.brand-tx{ line-height:1.05; }
.brand-tx b{
  display:block; font-family:var(--font-d); font-weight:680; font-size:.96rem;
  letter-spacing:-.028em; color:#fff;
}
.brand-tx span{
  display:block; font-size:.575rem; font-weight:600; letter-spacing:.19em;
  text-transform:uppercase; color:var(--tx-inv-3); margin-top:2px;
}
.nav{ display:flex; align-items:center; gap:2px; margin-left:auto; }
.nav a{
  padding:9px 11px; border-radius:var(--r-pill); font-size:.865rem; font-weight:540;
  white-space:nowrap; color:var(--tx-inv-2); transition:color .2s, background .2s;
}
.nav a:hover{ color:#fff; background:rgba(255,255,255,.07); }
.hdr-cta{ display:flex; align-items:center; gap:12px; flex:none; }
.hdr-tel{
  display:inline-flex; align-items:center; gap:8px; color:#fff;
  font-weight:640; font-size:.94rem; letter-spacing:-.02em;
}
.hdr-tel svg{ width:15px; height:15px; color:var(--ember); }
@media (max-width:1080px){ .nav{ display:none; } }
@media (max-width:720px){ .hdr-tel span{ display:none; } .hdr-in{ height:64px; } }

.burger{ display:none; margin-left:auto; padding:10px; color:#fff; }
.burger svg{ width:22px; height:22px; }
@media (max-width:1080px){ .burger{ display:block; } .nav{ margin-left:0; } }
@media (max-width:1080px){ .hdr-in .hdr-cta{ margin-left:0; } }

.mnav{
  position:fixed; inset:0; z-index:70; background:var(--ink);
  display:flex; flex-direction:column; padding:24px var(--pad) 40px;
  transform:translateY(-100%); transition:transform .5s var(--ease-out);
  overflow-y:auto;
}
.mnav.open{ transform:translateY(0); }
.mnav-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:38px; }
.mnav a.mlink{
  display:flex; align-items:center; justify-content:space-between;
  padding:19px 0; border-bottom:1px solid var(--ink-line);
  font-family:var(--font-d); font-size:1.5rem; font-weight:620; letter-spacing:-.03em; color:#fff;
}
.mnav a.mlink span{ color:var(--tx-inv-3); font-size:.8rem; font-family:var(--font); font-weight:500; letter-spacing:0; }
.mnav-foot{ margin-top:auto; padding-top:32px; display:grid; gap:12px; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative; background:var(--ink); color:var(--tx-inv);
  padding-block:clamp(56px,7vw,92px) clamp(64px,8vw,104px);
  overflow:hidden;
}
.hero-bg{ position:absolute; inset:0; z-index:0; overflow:hidden; }
.hero-bg img{
  width:100%; height:100%; object-fit:cover; opacity:.19;
  filter:grayscale(.35) contrast(1.15) brightness(.8);
  transform:scale(1.06);
}
.hero-bg::after{
  content:""; position:absolute; inset:0;
  background:
    radial-gradient(120% 90% at 78% 8%, rgba(247,144,9,.20), transparent 58%),
    radial-gradient(90% 80% at 4% 96%, rgba(46,111,183,.24), transparent 60%),
    linear-gradient(180deg, rgba(8,12,18,.72) 0%, rgba(8,12,18,.86) 46%, var(--ink) 100%);
}
.hero-glow{
  position:absolute; z-index:0; width:min(760px,90vw); aspect-ratio:1; border-radius:50%;
  top:-24%; right:-14%; pointer-events:none;
  background:radial-gradient(circle, rgba(247,144,9,.17), transparent 66%);
  filter:blur(28px);
  animation:drift 15s ease-in-out infinite alternate;
}
@keyframes drift{
  from{ transform:translate3d(0,0,0) scale(1); opacity:.85; }
  to  { transform:translate3d(-42px,34px,0) scale(1.1); opacity:1; }
}
@media (prefers-reduced-motion:reduce){ .hero-glow{ animation:none; } }

.hero-in{ position:relative; z-index:2; display:grid; gap:clamp(38px,5vw,64px); align-items:start; }
@media (min-width:1000px){ .hero-in{ grid-template-columns:1.06fr .94fr; align-items:center; } }

.hero h1{ margin-top:20px; }
.hero h1 em{
  font-style:normal; position:relative; display:inline-block;
  background:linear-gradient(100deg,var(--ember-lo),var(--ember) 55%,var(--ember-hi));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero-sub{ margin-top:24px; max-width:53ch; }
.hero-acts{ margin-top:32px; display:flex; flex-wrap:wrap; gap:12px; align-items:center; }
.hero-proof{
  margin-top:34px; padding-top:26px; border-top:1px solid var(--ink-line);
  display:flex; flex-wrap:wrap; gap:26px 34px; align-items:center;
}
.hero-proof-i b{
  display:block; font-family:var(--font-d); font-size:1.6rem; font-weight:680;
  letter-spacing:-.04em; color:#fff; line-height:1;
}
.hero-proof-i span{ display:block; margin-top:6px; font-size:.755rem; color:var(--tx-inv-3); letter-spacing:.02em; }

/* Hero quote card */
.qcard{
  background:linear-gradient(168deg, rgba(29,40,54,.96), rgba(13,19,27,.98));
  border:1px solid var(--ink-line-2); border-radius:var(--r-xl);
  padding:clamp(22px,2.6vw,30px);
  box-shadow:0 40px 90px rgba(0,0,0,.55), inset 0 1px 0 rgba(255,255,255,.08);
  position:relative; overflow:hidden;
}
.qcard::before{
  content:""; position:absolute; top:0; left:0; right:0; height:3px;
  background:linear-gradient(90deg,var(--flow-lo),var(--ember),var(--ember-hi));
}
.qcard-head{ display:flex; align-items:flex-start; justify-content:space-between; gap:16px; }
.qcard-head h3{ font-size:1.32rem; color:#fff; }
.qcard-head p{ margin-top:8px; font-size:.87rem; color:var(--tx-inv-2); }
.qcard-badge{
  flex:none; display:flex; flex-direction:column; align-items:center; justify-content:center;
  width:58px; height:58px; border-radius:var(--r-md);
  background:rgba(247,144,9,.12); border:1px solid rgba(247,144,9,.3); color:var(--ember-lo);
}
.qcard-badge b{ font-size:1.02rem; line-height:1; font-family:var(--font-d); }
.qcard-badge span{ font-size:.5rem; letter-spacing:.1em; text-transform:uppercase; margin-top:3px; opacity:.8; }
.qopts{ margin-top:22px; display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.qopt{
  display:flex; align-items:center; gap:11px; text-align:left;
  padding:14px 14px; border-radius:var(--r-md);
  background:rgba(255,255,255,.045); border:1px solid var(--ink-line);
  color:var(--tx-inv); font-size:.885rem; font-weight:560; letter-spacing:-.012em;
  transition:background .22s, border-color .22s, transform .22s var(--ease-out);
}
.qopt:hover{ background:rgba(247,144,9,.1); border-color:rgba(247,144,9,.42); transform:translateY(-2px); }
.qopt i{
  flex:none; width:32px; height:32px; border-radius:9px; display:grid; place-items:center;
  background:rgba(255,255,255,.07);
}
.qopt svg{ width:17px; height:17px; color:var(--ember-lo); }
.qopt:hover i{ background:rgba(247,144,9,.16); }
.qcard-foot{
  margin-top:18px; padding-top:16px; border-top:1px solid var(--ink-line);
  display:flex; align-items:center; justify-content:space-between; gap:14px; flex-wrap:wrap;
}
.qcard-foot .small{ color:var(--tx-inv-3); }

/* Accreditation strip */
.accred{ background:var(--ink); border-top:1px solid var(--ink-line); padding-block:26px; }
.accred-in{ display:flex; align-items:center; gap:clamp(20px,3.4vw,48px); flex-wrap:wrap; justify-content:center; }
.accred-lb{
  font-size:.68rem; font-weight:640; letter-spacing:.18em; text-transform:uppercase;
  color:var(--tx-inv-3); flex:none;
}
.accred-logos{ display:flex; align-items:stretch; gap:12px; flex-wrap:wrap; justify-content:center; }
.accred-chip{
  display:grid; place-items:center; padding:12px 20px; min-width:118px; height:66px;
  background:#fff; border-radius:var(--r-md);
  box-shadow:0 1px 0 rgba(255,255,255,.5) inset, 0 8px 22px rgba(0,0,0,.3);
  transition:transform .3s var(--ease-out), box-shadow .3s var(--ease-out);
}
.accred-chip:hover{ transform:translateY(-3px); box-shadow:0 14px 30px rgba(0,0,0,.4); }
.accred-chip img{ max-height:34px; width:auto; object-fit:contain; }
.accred-chip img.gs{ max-height:30px; }
.accred-chip img.tall{ max-height:48px; }

/* ==========================================================================
   Audience switch
   ========================================================================== */
.aud-tabs{
  display:inline-flex; padding:5px; border-radius:var(--r-pill);
  background:rgba(8,12,18,.05); border:1px solid var(--rule); gap:4px;
  max-width:100%; overflow-x:auto; scrollbar-width:none;
}
.aud-tabs::-webkit-scrollbar{ display:none; }
.aud-tab{
  padding:11px 20px; border-radius:var(--r-pill); white-space:nowrap;
  font-size:.9rem; font-weight:600; color:var(--tx-2); letter-spacing:-.014em;
  transition:color .25s, background .25s, box-shadow .25s;
}
.aud-tab[aria-selected="true"]{ background:var(--ink); color:#fff; box-shadow:var(--shadow-md); }
.aud-panel[hidden]{ display:none; }
.aud-panel{ animation:fade .5s var(--ease-out); }
@keyframes fade{ from{ opacity:0; transform:translateY(10px); } to{ opacity:1; transform:none; } }
.aud-grid{ display:grid; gap:var(--gap); align-items:center; }
@media (min-width:940px){ .aud-grid{ grid-template-columns:1fr 1.02fr; } }
.aud-media{
  position:relative; border-radius:var(--r-lg); overflow:hidden; background:var(--ink-2);
  aspect-ratio:4/3; box-shadow:var(--shadow-lg);
}
.aud-media img{ width:100%; height:100%; object-fit:cover; transition:transform 1.1s var(--ease-out); }
.aud-media:hover img{ transform:scale(1.045); }
.aud-media figcaption{
  position:absolute; left:0; right:0; bottom:0; padding:44px 22px 20px;
  background:linear-gradient(to top, rgba(8,12,18,.92), transparent);
  color:#fff; font-size:.82rem;
}
.aud-media figcaption b{ display:block; font-size:.95rem; font-weight:640; letter-spacing:-.02em; }
.aud-media figcaption span{ color:var(--tx-inv-2); }
.tick-list{ display:grid; gap:13px; margin:26px 0 0; padding:0; list-style:none; }
.tick-list li{ display:flex; gap:13px; align-items:flex-start; font-size:.955rem; color:var(--tx-2); }
.tick-list svg{ width:20px; height:20px; flex:none; margin-top:1px; color:var(--leaf); }
.tick-list b{ color:var(--tx); font-weight:620; }

/* ==========================================================================
   Quote builder
   ========================================================================== */
.builder{
  background:linear-gradient(170deg,var(--ink-2) 0%, var(--ink) 62%);
  border:1px solid var(--ink-line-2); border-radius:var(--r-xl);
  overflow:hidden; box-shadow:0 40px 100px rgba(0,0,0,.42);
  position:relative;
}
.builder-bar{ height:4px; background:rgba(255,255,255,.08); position:relative; }
.builder-bar i{
  position:absolute; inset:0 auto 0 0; width:12%;
  background:linear-gradient(90deg,var(--flow),var(--ember));
  transition:width .55s var(--ease-out);
}
.builder-head{
  display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
  padding:20px clamp(20px,3vw,34px); border-bottom:1px solid var(--ink-line);
}
.builder-steps{ display:flex; align-items:center; gap:9px; font-size:.775rem; color:var(--tx-inv-3); flex-wrap:wrap; }
.builder-crumb{
  display:inline-flex; align-items:center; gap:6px; padding:5px 11px; border-radius:var(--r-pill);
  background:rgba(255,255,255,.06); border:1px solid var(--ink-line);
  color:var(--tx-inv-2); font-size:.75rem; font-weight:540;
  animation:fade .4s var(--ease-out);
}
.builder-crumb b{ color:#fff; font-weight:620; }
.builder-body{ padding:clamp(26px,4vw,48px) clamp(20px,3vw,44px) clamp(28px,4vw,46px); }
.bstep[hidden]{ display:none; }
.bstep{ animation:stepIn .45s var(--ease-out); }
@keyframes stepIn{ from{ opacity:0; transform:translateY(14px); } to{ opacity:1; transform:none; } }
.bstep-q{ color:#fff; max-width:22ch; }
.bstep-hint{ margin-top:12px; color:var(--tx-inv-2); font-size:.93rem; max-width:56ch; }
.bopts{ margin-top:30px; display:grid; gap:12px; grid-template-columns:repeat(auto-fit,minmax(210px,1fr)); }
@media (min-width:900px){ .bopts.cols-3{ grid-template-columns:repeat(3,1fr); } }
.bopt{
  position:relative; text-align:left; padding:20px; border-radius:var(--r-md);
  background:rgba(255,255,255,.045); border:1px solid var(--ink-line); color:var(--tx-inv);
  transition:background .22s, border-color .22s, transform .24s var(--ease-out);
}
.bopt:hover{ background:rgba(247,144,9,.1); border-color:rgba(247,144,9,.45); transform:translateY(-3px); }
.bopt[aria-pressed="true"]{ background:rgba(247,144,9,.14); border-color:var(--ember); }
.bopt b{ display:block; font-weight:620; font-size:1.02rem; letter-spacing:-.02em; }
.bopt span{ display:block; margin-top:6px; font-size:.83rem; color:var(--tx-inv-2); line-height:1.45; }
.bopt .ic{
  width:36px; height:36px; border-radius:10px; display:grid; place-items:center;
  background:rgba(255,255,255,.07); margin-bottom:14px;
}
.bopt .ic svg{ width:19px; height:19px; color:var(--ember-lo); }
.bopt-row{ display:flex; align-items:center; gap:14px; }
.bopt-row .ic{ margin:0; }

.bnums{ margin-top:30px; display:flex; flex-wrap:wrap; gap:10px; }
.bnum{
  min-width:60px; padding:16px 18px; border-radius:var(--r-md);
  background:rgba(255,255,255,.045); border:1px solid var(--ink-line); color:#fff;
  font-family:var(--font-d); font-size:1.12rem; font-weight:640; letter-spacing:-.02em;
  transition:background .2s, border-color .2s, transform .22s var(--ease-out);
}
.bnum:hover{ background:rgba(247,144,9,.12); border-color:rgba(247,144,9,.45); transform:translateY(-2px); }

.bnav{ margin-top:30px; display:flex; align-items:center; gap:14px; flex-wrap:wrap; }
.bback{
  display:inline-flex; align-items:center; gap:8px; padding:11px 17px; border-radius:var(--r-pill);
  border:1px solid var(--ink-line); color:var(--tx-inv-2); font-size:.87rem; font-weight:560;
  transition:background .2s, color .2s;
}
.bback:hover{ background:rgba(255,255,255,.07); color:#fff; }
.bback svg{ width:15px; height:15px; }

/* Result */
.bres{ display:grid; gap:clamp(24px,3vw,40px); }
@media (min-width:900px){ .bres{ grid-template-columns:1.08fr .92fr; } }
.bres-price{
  background:linear-gradient(160deg, rgba(247,144,9,.16), rgba(247,144,9,.03));
  border:1px solid rgba(247,144,9,.32); border-radius:var(--r-lg); padding:clamp(24px,3vw,34px);
  position:relative; overflow:hidden;
}
.bres-price .eyebrow{ color:var(--ember-lo); }
.bres-price .eyebrow::before{ background:var(--ember-lo); }
.bres-fig{
  display:flex; align-items:baseline; gap:6px; margin-top:16px;
  font-family:var(--font-d); font-weight:700; letter-spacing:-.045em; color:#fff;
  font-size:clamp(2.4rem,5.2vw,3.5rem); line-height:1;
}
.bres-fig sup{ font-size:.42em; font-weight:600; top:-.7em; color:var(--tx-inv-2); letter-spacing:0; }
.bres-fig .to{ font-size:.34em; font-weight:540; color:var(--tx-inv-2); letter-spacing:-.01em; }
.bres-fin{
  margin-top:18px; padding:15px 17px; border-radius:var(--r-md);
  background:rgba(8,12,18,.42); border:1px solid var(--ink-line);
  display:flex; align-items:center; justify-content:space-between; gap:14px; flex-wrap:wrap;
}
.bres-fin b{ font-family:var(--font-d); font-size:1.28rem; color:#fff; letter-spacing:-.03em; }
.bres-inc{ margin:22px 0 0; padding:0; list-style:none; display:grid; gap:11px; }
.bres-inc li{ display:flex; gap:11px; font-size:.895rem; color:var(--tx-inv-2); align-items:flex-start; }
.bres-inc svg{ width:17px; height:17px; color:var(--leaf-lo); flex:none; margin-top:2px; }
.bres-note{ margin-top:20px; font-size:.755rem; color:var(--tx-inv-3); line-height:1.5; }

/* Form inside builder */
.bform{ display:grid; gap:14px; }
.field{ display:grid; gap:7px; }
.field label{ font-size:.775rem; font-weight:620; letter-spacing:.06em; text-transform:uppercase; color:var(--tx-inv-3); }
.field input, .field textarea, .field select{
  width:100%; padding:14px 16px; border-radius:var(--r-md);
  background:rgba(255,255,255,.05); border:1px solid var(--ink-line); color:#fff;
  font-size:.95rem; transition:border-color .2s, background .2s;
}
.field input::placeholder, .field textarea::placeholder{ color:rgba(255,255,255,.3); }
.field input:focus, .field textarea:focus, .field select:focus{
  outline:none; border-color:var(--ember); background:rgba(255,255,255,.08);
}
.field-2{ display:grid; gap:14px; grid-template-columns:1fr 1fr; }
@media (max-width:520px){ .field-2{ grid-template-columns:1fr; } }
.field.err input{ border-color:#E5484D; }
.field .msg{ font-size:.74rem; color:#FF8086; display:none; }
.field.err .msg{ display:block; }

.bslots{ display:flex; flex-wrap:wrap; gap:9px; }
.bslot{
  padding:10px 15px; border-radius:var(--r-pill); border:1px solid var(--ink-line);
  background:rgba(255,255,255,.045); color:var(--tx-inv-2); font-size:.83rem; font-weight:560;
  transition:all .2s;
}
.bslot[aria-pressed="true"]{ background:var(--ember); border-color:var(--ember); color:#0B0704; font-weight:620; }
.bslot:hover{ border-color:rgba(247,144,9,.5); color:#fff; }

.bdone{ text-align:center; padding:clamp(30px,5vw,60px) 0; }
.bdone-ic{
  width:74px; height:74px; margin:0 auto 24px; border-radius:50%; display:grid; place-items:center;
  background:rgba(91,168,47,.16); border:1px solid rgba(91,168,47,.4);
  animation:pop .55s var(--ease-out);
}
@keyframes pop{ from{ transform:scale(.5); opacity:0; } to{ transform:scale(1); opacity:1; } }
.bdone-ic svg{ width:34px; height:34px; color:var(--leaf-lo); }

/* ==========================================================================
   Price menu
   ========================================================================== */
.prices{ display:grid; gap:18px; grid-template-columns:repeat(auto-fit,minmax(248px,1fr)); }
.price{
  background:var(--paper); border:1px solid var(--rule); border-radius:var(--r-lg);
  padding:26px 24px 24px; position:relative; overflow:hidden;
  transition:transform .34s var(--ease-out), box-shadow .34s var(--ease-out), border-color .3s;
}
.price::before{
  content:""; position:absolute; top:0; left:0; right:0; height:3px;
  background:linear-gradient(90deg,var(--ember),var(--ember-lo)); transform:scaleX(0);
  transform-origin:left; transition:transform .45s var(--ease-out);
}
.price:hover{ transform:translateY(-5px); box-shadow:var(--shadow-lg); border-color:transparent; }
.price:hover::before{ transform:scaleX(1); }
.price-ic{
  width:42px; height:42px; border-radius:12px; display:grid; place-items:center;
  background:rgba(247,144,9,.1); margin-bottom:18px;
}
.price-ic svg{ width:21px; height:21px; color:var(--ember-hi); }
.price h3{ font-size:1.12rem; }
.price p{ margin-top:9px; font-size:.875rem; color:var(--tx-3); line-height:1.5; }
.price-fig{
  margin-top:20px; padding-top:18px; border-top:1px solid var(--rule);
  display:flex; align-items:baseline; gap:7px;
}
.price-fig b{ font-family:var(--font-d); font-size:1.85rem; font-weight:700; letter-spacing:-.045em; }
.price-fig span{ font-size:.775rem; color:var(--tx-3); }
.price-tag{
  position:absolute; top:18px; right:18px; padding:5px 10px; border-radius:var(--r-pill);
  background:var(--ink); color:#fff; font-size:.665rem; font-weight:640; letter-spacing:.08em; text-transform:uppercase;
}

/* ==========================================================================
   Heat pump calculator
   ========================================================================== */
.calc{ display:grid; gap:clamp(28px,4vw,52px); align-items:center; }
@media (min-width:980px){ .calc{ grid-template-columns:.92fr 1.08fr; } }
.calc-panel{
  background:var(--paper); border:1px solid var(--rule); border-radius:var(--r-xl);
  padding:clamp(24px,3vw,36px); box-shadow:var(--shadow-lg);
}
.slider-row{ display:flex; align-items:baseline; justify-content:space-between; gap:12px; margin-bottom:14px; }
.slider-row b{ font-family:var(--font-d); font-size:1.85rem; font-weight:700; letter-spacing:-.045em; color:var(--tx); }
input[type=range]{
  -webkit-appearance:none; appearance:none; width:100%; height:6px; border-radius:var(--r-pill);
  background:linear-gradient(90deg,var(--leaf) var(--pct,40%), var(--bone-2) var(--pct,40%));
  outline:none; cursor:pointer;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none; width:26px; height:26px; border-radius:50%;
  background:#fff; border:2px solid var(--leaf); box-shadow:0 3px 12px rgba(8,12,18,.22); cursor:grab;
  transition:transform .18s;
}
input[type=range]::-webkit-slider-thumb:active{ transform:scale(1.14); cursor:grabbing; }
input[type=range]::-moz-range-thumb{
  width:24px; height:24px; border-radius:50%; background:#fff; border:2px solid var(--leaf);
  box-shadow:0 3px 12px rgba(8,12,18,.22); cursor:grab;
}
.calc-bars{ margin-top:30px; display:grid; gap:16px; }
.cbar-l{ display:flex; align-items:baseline; justify-content:space-between; gap:12px; margin-bottom:8px; font-size:.87rem; }
.cbar-l b{ font-family:var(--font-d); font-size:1.05rem; letter-spacing:-.03em; }
.cbar-t{ height:12px; border-radius:var(--r-pill); background:var(--bone-2); overflow:hidden; }
.cbar-f{ display:block; height:100%; border-radius:var(--r-pill); width:0; transition:width .7s var(--ease-out); }
.cbar-f.gas{ background:linear-gradient(90deg,var(--tx-3),#8D9AA8); }
.cbar-f.hp{ background:linear-gradient(90deg,var(--leaf),var(--leaf-lo)); }
.calc-out{
  margin-top:28px; padding:22px; border-radius:var(--r-lg);
  background:linear-gradient(150deg, rgba(91,168,47,.12), rgba(91,168,47,.03));
  border:1px solid rgba(91,168,47,.28);
  display:flex; align-items:center; justify-content:space-between; gap:18px; flex-wrap:wrap;
}
.calc-out b{ font-family:var(--font-d); font-size:2.1rem; font-weight:700; letter-spacing:-.05em; color:#3D7A1C; display:block; line-height:1; }
.calc-out span{ font-size:.8rem; color:var(--tx-2); display:block; margin-top:7px; }
.grant-card{
  display:flex; gap:16px; padding:20px; border-radius:var(--r-lg); margin-top:20px;
  background:var(--ink); color:#fff; align-items:flex-start;
}
.grant-card svg{ width:26px; height:26px; color:var(--leaf-lo); flex:none; }
.grant-card b{ font-family:var(--font-d); letter-spacing:-.02em; font-size:1.02rem; }
.grant-card p{ margin-top:6px; font-size:.845rem; color:var(--tx-inv-2); }

/* ==========================================================================
   Work
   ========================================================================== */
.work{ display:grid; gap:20px; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); }
.wcard{
  position:relative; border-radius:var(--r-lg); overflow:hidden; background:var(--ink-2);
  aspect-ratio:3/3.5; display:flex; align-items:flex-end;
  transition:transform .4s var(--ease-out);
}
.wcard:hover{ transform:translateY(-6px); }
.wcard img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  transition:transform 1.2s var(--ease-out), filter .5s;
  filter:brightness(.68) saturate(.88);
}
.wcard:hover img{ transform:scale(1.06); filter:brightness(.8) saturate(1); }
.wcard::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(to top, rgba(8,12,18,.97) 2%, rgba(8,12,18,.88) 30%, rgba(8,12,18,.42) 62%, rgba(8,12,18,.1) 88%);
}
.wcard-b{ position:relative; z-index:2; padding:26px 24px; color:#fff; width:100%; }
.wcard-b .chip{ margin-bottom:14px; }
.wcard-b h3{ font-size:1.28rem; }
.wcard-b p{ margin-top:10px; font-size:.875rem; color:var(--tx-inv-2); line-height:1.5; }
.wcard-meta{
  margin-top:18px; padding-top:14px; border-top:1px solid var(--ink-line);
  display:flex; gap:20px; flex-wrap:wrap;
}
.wcard-meta div span{ display:block; font-size:.66rem; letter-spacing:.1em; text-transform:uppercase; color:var(--tx-inv-3); }
.wcard-meta div b{ font-size:.86rem; font-weight:600; }

.clients{ display:grid; gap:2px; margin-top:clamp(40px,5vw,64px); border-radius:var(--r-lg); overflow:hidden; }
@media (min-width:640px){ .clients{ grid-template-columns:repeat(3,1fr); } }
@media (min-width:1000px){ .clients{ grid-template-columns:repeat(5,1fr); } }
.client{
  background:rgba(255,255,255,.035); padding:26px 20px; text-align:center;
  transition:background .3s;
}
.client:hover{ background:rgba(247,144,9,.1); }
.client b{ display:block; font-family:var(--font-d); font-size:1rem; font-weight:620; letter-spacing:-.02em; color:#fff; }
.client span{ display:block; margin-top:7px; font-size:.72rem; color:var(--tx-inv-3); }

/* ==========================================================================
   Comparison table
   ========================================================================== */
.cmp-wrap{ overflow-x:auto; border-radius:var(--r-lg); border:1px solid var(--rule); background:var(--paper); }
.cmp{ width:100%; border-collapse:collapse; min-width:660px; }
.cmp th, .cmp td{ padding:17px 20px; text-align:left; border-bottom:1px solid var(--rule); font-size:.92rem; }
.cmp thead th{
  font-size:.72rem; letter-spacing:.11em; text-transform:uppercase; font-weight:640;
  color:var(--tx-3); background:var(--bone); white-space:nowrap;
}
.cmp thead th.us{ background:var(--ink); color:#fff; }
.cmp tbody th{ font-weight:580; color:var(--tx-2); width:34%; }
.cmp td{ text-align:center; }
.cmp td.us{ background:rgba(247,144,9,.055); font-weight:600; color:var(--tx); }
.cmp tbody tr:last-child th, .cmp tbody tr:last-child td{ border-bottom:0; }
.cmp .yes{ color:#3D7A1C; }
.cmp .no{ color:#B4271F; }
.cmp svg{ width:19px; height:19px; display:inline-block; vertical-align:-4px; }

/* ==========================================================================
   Steps / process
   ========================================================================== */
.steps{ display:grid; gap:2px; counter-reset:st; }
@media (min-width:800px){ .steps{ grid-template-columns:repeat(4,1fr); } }
.step{ padding:30px 24px 28px; background:var(--paper); position:relative; counter-increment:st; }
.step::before{
  content:"0" counter(st);
  font-family:var(--font-d); font-size:.85rem; font-weight:700; letter-spacing:.04em;
  color:var(--ember-hi); display:block; margin-bottom:16px;
}
.step::after{
  content:""; position:absolute; top:0; left:0; height:2px; width:0; background:var(--ember);
  transition:width .8s var(--ease-out);
}
.step.in::after{ width:100%; }
.step h3{ font-size:1.08rem; }
.step p{ margin-top:10px; font-size:.87rem; color:var(--tx-3); line-height:1.55; }

/* ==========================================================================
   Reviews
   ========================================================================== */
.revs{ display:grid; gap:18px; grid-template-columns:repeat(auto-fit,minmax(290px,1fr)); }
.rev{
  background:var(--paper); border:1px solid var(--rule); border-radius:var(--r-lg); padding:26px 24px;
  display:flex; flex-direction:column; transition:transform .34s var(--ease-out), box-shadow .34s var(--ease-out);
}
.rev:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); }
.stars{ display:flex; gap:3px; color:var(--ember); margin-bottom:16px; }
.stars svg{ width:16px; height:16px; }
.rev p{ font-size:.955rem; line-height:1.62; color:var(--tx-2); }
.rev-by{ margin-top:auto; padding-top:20px; display:flex; align-items:center; gap:12px; }
.rev-av{
  width:38px; height:38px; border-radius:50%; flex:none; display:grid; place-items:center;
  background:var(--ink); color:#fff; font-weight:640; font-size:.85rem; letter-spacing:-.02em;
}
.rev-by b{ display:block; font-size:.885rem; font-weight:620; }
.rev-by span{ display:block; font-size:.755rem; color:var(--tx-3); }

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq{ border-top:1px solid var(--rule); }
.faq details{ border-bottom:1px solid var(--rule); }
.faq summary{
  list-style:none; cursor:pointer; padding:24px 44px 24px 0; position:relative;
  font-family:var(--font-d); font-size:clamp(1.02rem,1.5vw,1.16rem); font-weight:600; letter-spacing:-.024em;
  transition:color .2s;
}
.faq summary::-webkit-details-marker{ display:none; }
.faq summary:hover{ color:var(--ember-hi); }
.faq summary::after{
  content:""; position:absolute; right:6px; top:50%; width:11px; height:11px;
  border-right:2px solid var(--tx-3); border-bottom:2px solid var(--tx-3);
  transform:translateY(-70%) rotate(45deg); transition:transform .3s var(--ease-out);
}
.faq details[open] summary::after{ transform:translateY(-20%) rotate(-135deg); }
.faq .ans{ padding:0 12% 26px 0; color:var(--tx-2); font-size:.955rem; line-height:1.62; }
.faq details[open] .ans{ animation:fade .4s var(--ease-out); }

/* ==========================================================================
   Contact / CTA
   ========================================================================== */
.cta-grid{ display:grid; gap:clamp(30px,4vw,60px); }
@media (min-width:960px){ .cta-grid{ grid-template-columns:1fr 1.05fr; } }
.contact-list{ display:grid; gap:2px; margin-top:32px; border-radius:var(--r-lg); overflow:hidden; }
.contact-i{
  display:flex; gap:16px; padding:22px; background:rgba(255,255,255,.04);
  align-items:flex-start; transition:background .25s;
}
.contact-i:hover{ background:rgba(255,255,255,.08); }
.contact-i .ic{
  width:40px; height:40px; border-radius:11px; display:grid; place-items:center; flex:none;
  background:rgba(247,144,9,.14);
}
.contact-i .ic svg{ width:19px; height:19px; color:var(--ember-lo); }
.contact-i .ci-tx{ display:block; min-width:0; }
.contact-i .ci-lb{ display:block; font-size:.7rem; letter-spacing:.12em; text-transform:uppercase; color:var(--tx-inv-3); }
.contact-i b{ display:block; margin-top:5px; font-size:1.02rem; font-weight:620; letter-spacing:-.02em; word-break:break-word; }
.contact-i .ci-sub{ display:block; margin-top:4px; font-size:.82rem; color:var(--tx-inv-2); }

.emerg{
  display:flex; gap:18px; align-items:center; padding:22px 24px; border-radius:var(--r-lg);
  background:linear-gradient(120deg, rgba(224,107,4,.16), rgba(224,107,4,.04));
  border:1px solid rgba(247,144,9,.3); margin-top:22px; flex-wrap:wrap;
}
.emerg-ic{ width:44px; height:44px; border-radius:50%; display:grid; place-items:center; background:rgba(247,144,9,.2); flex:none; }
.emerg-ic svg{ width:22px; height:22px; color:var(--ember-lo); }
.emerg div{ min-width:180px; flex:1; }
.emerg b{ display:block; font-family:var(--font-d); font-size:1.05rem; letter-spacing:-.024em; }
.emerg p{ font-size:.845rem; color:var(--tx-inv-2); margin-top:4px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.ft{ background:var(--ink); color:var(--tx-inv-2); border-top:1px solid var(--ink-line); padding-block:clamp(48px,6vw,72px) 30px; }
.ft-grid{ display:grid; gap:38px; }
@media (min-width:820px){ .ft-grid{ grid-template-columns:1.5fr 1fr 1fr 1fr; } }
.ft h4{ font-size:.72rem; letter-spacing:.14em; text-transform:uppercase; color:var(--tx-inv-3); margin-bottom:16px; font-family:var(--font); font-weight:640; }
.ft ul{ list-style:none; margin:0; padding:0; display:grid; gap:11px; font-size:.875rem; }
.ft a:hover{ color:#fff; }
.ft-bot{
  margin-top:44px; padding-top:24px; border-top:1px solid var(--ink-line);
  display:flex; justify-content:space-between; gap:18px; flex-wrap:wrap; font-size:.775rem; color:var(--tx-inv-3);
}

/* ==========================================================================
   Sticky mobile bar
   ========================================================================== */
.mbar{
  position:fixed; left:0; right:0; bottom:0; z-index:55;
  display:grid; grid-template-columns:1fr 1fr; gap:10px; padding:11px 14px calc(11px + env(safe-area-inset-bottom));
  background:rgba(8,12,18,.9); backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px);
  border-top:1px solid var(--ink-line);
  transform:translateY(110%); transition:transform .45s var(--ease-out);
}
.mbar.show{ transform:translateY(0); }
.mbar .btn{ width:100%; padding:14px 16px; font-size:.9rem; }
@media (min-width:900px){ .mbar{ display:none; } }
@media (max-width:899px){ body{ padding-bottom:0; } }

/* ==========================================================================
   Reveal
   ========================================================================== */
/* Only hide when JS is present to reveal it again — and never trust the
   observer alone: app.js reveals anything already on screen immediately. */
html.js .rv{ opacity:0; transform:translateY(24px); transition:opacity .8s var(--ease-out), transform .8s var(--ease-out); }
html.js .rv.in{ opacity:1; transform:none; }
.rv-d1{ transition-delay:.08s; } .rv-d2{ transition-delay:.16s; } .rv-d3{ transition-delay:.24s; } .rv-d4{ transition-delay:.32s; }
@media (prefers-reduced-motion:reduce){
  html.js .rv{ opacity:1; transform:none; transition:none; }
  *{ animation-duration:.01ms !important; transition-duration:.06s !important; }
}

/* Utilities */
.mt-s{ margin-top:14px; } .mt-m{ margin-top:26px; } .mt-l{ margin-top:40px; }
.stack-sm{ display:flex; gap:10px; flex-wrap:wrap; }
.divider{ height:1px; background:var(--rule); border:0; margin:0; }
.divider-inv{ background:var(--ink-line); }
.hl{ color:var(--ember-hi); font-weight:620; }
.hl-inv{ color:var(--ember-lo); font-weight:620; }
.nowrap{ white-space:nowrap; }