/* AutoCoolParts — Heating (winter night palette: blue = cold/cooling, ember = heat) */
:root {
  color-scheme: dark;
  --night: #0a121c;
  --cab: #101c29;
  --cab-2: #172636;
  --line: rgba(150, 185, 215, 0.16);
  --line-2: rgba(150, 185, 215, 0.28);
  --frost: #eaf2f8;
  --ice: #9bb0c2;
  --ice-dim: #6f879b;
  --ember: #ff6b2c;
  --ember-2: #ff8a52;
  --ember-soft: rgba(255, 107, 44, 0.14);
  --cool: #5a9ce0;
  --cool-soft: rgba(90, 156, 224, 0.14);
  --display: "Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif;
  --body: "Barlow", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --r: 10px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  background: var(--night);
  color: var(--frost);
  font: 400 17px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--display); text-wrap: balance; margin: 0; line-height: 1.02; letter-spacing: 0.005em; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--ember-2); outline-offset: 3px; border-radius: 4px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.wrap { width: 100%; max-width: 1180px; margin-inline: auto; padding-inline: 20px; }

.eyebrow {
  font: 600 13px/1 var(--body);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ember-2);
  margin-bottom: 14px;
}
.ember { color: var(--ember); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 700 17px/1 var(--display); letter-spacing: 0.08em; text-transform: uppercase;
  padding: 16px 26px; border-radius: 6px; text-decoration: none; border: 1px solid transparent;
  cursor: pointer; transition: background .2s, transform .2s, border-color .2s;
}
.btn-ember { background: var(--ember); color: #1a0a02; }
.btn-ember:hover { background: var(--ember-2); transform: translateY(-1px); }
.btn-ghost { border-color: var(--line-2); color: var(--frost); background: rgba(255,255,255,0.03); }
.btn-ghost:hover { border-color: var(--frost); }
.btn-sm { padding: 11px 16px; font-size: 15px; }
.btn-block { width: 100%; }

/* Utility bar */
.util { background: #060c13; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--ice); }
.util-in { display: flex; justify-content: center; gap: 10px 28px; flex-wrap: wrap; padding-block: 8px; }
.util-item { display: inline-flex; align-items: center; gap: 7px; letter-spacing: 0.04em; }
.util-item + .util-item::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--ice-dim); margin-right: 14px; margin-left: -14px; }
.leaf { width: 14px; height: 14px; fill: #e5484d; }

/* Header */
.hdr {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50;
  background: rgba(10, 18, 28, 0.86); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.hdr-in { display: flex; align-items: center; gap: 24px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; white-space: nowrap; flex: none; text-decoration: none; font: 700 22px/1 var(--display); letter-spacing: 0.04em; text-transform: uppercase; }
.brand b { color: var(--ember); font-weight: 700; }
.brand img { width: 36px; height: auto; }
.nav { display: flex; gap: 26px; margin-left: 8px; }
.nav a { text-decoration: none; color: var(--ice); font-weight: 500; font-size: 16px; transition: color .2s; }
.nav a:hover { color: var(--frost); }
.hdr-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.cool-link {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
  color: #cfe4fa; background: var(--cool-soft); border: 1px solid rgba(90,156,224,0.45);
  padding: 9px 14px; border-radius: 999px; font: 600 15px/1 var(--body); white-space: nowrap;
  transition: background .2s, border-color .2s;
}
.cool-link svg { width: 18px; height: 18px; color: var(--cool); flex: none; }
.cool-link .arr { width: 15px; height: 15px; transition: transform .2s; }
.cool-link:hover { background: rgba(90,156,224,0.24); border-color: var(--cool); }
.cool-link:hover .arr { transform: translateX(3px); }
.burger { display: none; width: 44px; height: 44px; background: none; border: 1px solid var(--line-2); border-radius: 8px; cursor: pointer; padding: 0; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.burger span { width: 18px; height: 2px; background: var(--frost); border-radius: 2px; transition: transform .2s, opacity .2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero { position: relative; overflow: hidden; padding-block: 64px 40px;
  background:
    radial-gradient(900px 500px at 78% 35%, rgba(255,107,44,0.13), transparent 60%),
    radial-gradient(800px 600px at 10% 0%, rgba(90,156,224,0.12), transparent 60%),
    linear-gradient(180deg, #0b1624 0%, var(--night) 100%);
}
.snow { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-in { position: relative; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(52px, 8vw, 104px); font-weight: 800; text-transform: uppercase; line-height: 0.92; letter-spacing: -0.005em; }
.lede { margin-top: 24px; font-size: 19px; color: #c9d7e3; max-width: 34em; }
.tagline { margin-top: 18px; font: 600 15px/1.4 var(--mono); color: var(--frost); letter-spacing: 0.02em; padding-left: 14px; border-left: 2px solid var(--ember); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; align-items: flex-start; }
.text-cta { display: grid; gap: 8px; }
.text-cta span, .rec-sms, .h-sms { font: 400 13px/1.3 var(--mono); color: var(--ice); }
.text-cta b, .rec-sms b { color: var(--frost); font-weight: 500; }
.rec-sms { text-align: center; margin-top: -4px; }
.h-sms { margin-top: -10px; color: var(--ice-dim); }

.hero-card { position: relative; margin: 0; border-radius: 14px; overflow: hidden; border: 1px solid var(--line-2); box-shadow: 0 30px 80px rgba(0,0,0,0.5); max-width: 460px; justify-self: end; width: 100%; }
.hero-card img { width: 100%; aspect-ratio: 4 / 4.6; object-fit: cover; filter: saturate(0.85) contrast(1.05); }
.readout {
  position: absolute; left: 14px; right: 14px; bottom: 14px;
  background: rgba(6, 12, 19, 0.88); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--line-2); border-radius: 10px; padding: 14px 16px; font-family: var(--mono);
}
.ro-head { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--ice); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 0 3px rgba(74,222,128,0.2); flex: none; }
.ro-grid { display: grid; grid-template-columns: 1fr auto 1fr; align-items: end; gap: 10px; margin: 10px 0 8px; }
.ro-lbl { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--ice-dim); }
.ro-val { display: block; font: 700 46px/1 var(--display); font-variant-numeric: tabular-nums; }
.ro-val.cold { color: #9fd0ff; }
.ro-val.warm { color: var(--ember-2); }
.ro-arrow { color: var(--ice-dim); font-size: 22px; padding-bottom: 8px; }
.ro-foot { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12px; color: var(--ice); border-top: 1px solid var(--line); padding-top: 8px; }

.proof { list-style: none; padding: 0; margin: 56px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); position: relative; }
.proof li { padding: 20px 20px 0 0; display: grid; gap: 4px; }
.proof li + li { padding-left: 20px; border-left: 1px solid var(--line); }
.proof b { font: 700 20px/1.1 var(--display); text-transform: uppercase; letter-spacing: 0.04em; }
.proof span { font-size: 15px; color: var(--ice); }

/* Sections */
.sec { padding-block: 96px; }
.sec-alt { background: var(--cab); border-block: 1px solid var(--line); }
.sec-head { max-width: 760px; margin-bottom: 48px; }
.sec-head h2, .why-head h2, .q-copy h2 { font-size: clamp(36px, 5vw, 58px); font-weight: 700; text-transform: uppercase; }
.sec-sub { margin-top: 16px; color: var(--ice); font-size: 18px; max-width: 40em; }

/* Pain points */
.pains { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.pain { display: flex; flex-direction: column; gap: 12px; padding: 26px 22px; background: linear-gradient(180deg, var(--cab-2), var(--cab)); border: 1px solid var(--line); border-radius: var(--r); }
.temp-tag { align-self: flex-start; font: 500 12px/1 var(--mono); color: #9fd0ff; background: var(--cool-soft); border: 1px solid rgba(90,156,224,0.3); padding: 6px 9px; border-radius: 4px; }
.pain h3 { font-size: 27px; font-weight: 700; text-transform: uppercase; }
.pain p { color: var(--ice); font-size: 16px; flex: 1; }
.fix { color: var(--ember-2); font-weight: 600; font-size: 15px; text-decoration: none; border-top: 1px solid var(--line); padding-top: 14px; }
.fix:hover { color: var(--frost); }

/* Cold check */
.cc { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 28px; align-items: start; }
.cc-left, .cc-right { display: grid; gap: 22px; }
.routes { display: flex; flex-wrap: wrap; gap: 8px; }
.route { font: 500 14px/1 var(--body); color: var(--ice); background: transparent; border: 1px solid var(--line-2); padding: 10px 14px; border-radius: 999px; cursor: pointer; transition: all .2s; }
.route:hover { color: var(--frost); border-color: var(--ice); }
.route[aria-pressed="true"] { color: var(--night); background: #9fd0ff; border-color: #9fd0ff; }
.thermo { background: var(--night); border: 1px solid var(--line); border-radius: var(--r); padding: 22px 22px 16px; }
.thermo-read { display: flex; align-items: baseline; gap: 6px; }
.thermo-num { font: 800 84px/0.9 var(--display); font-variant-numeric: tabular-nums; color: #9fd0ff; min-width: 2.2ch; }
.thermo-unit { font: 700 34px/1 var(--display); color: var(--ice); }
.thermo-f { font: 400 14px/1 var(--mono); color: var(--ice-dim); margin-left: 8px; }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 12px; border-radius: 999px; margin: 20px 0 10px; cursor: pointer;
  background: linear-gradient(90deg, #3a2cff 0%, #3b82f6 30%, #7cc4ff 62%, #d9eefc 100%); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 28px; height: 28px; border-radius: 50%; background: var(--frost); border: 4px solid var(--night); box-shadow: 0 0 0 2px #9fd0ff; }
input[type="range"]::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%; background: var(--frost); border: 4px solid var(--night); box-shadow: 0 0 0 2px #9fd0ff; }
.thermo-scale { display: flex; justify-content: space-between; font: 400 12px/1 var(--mono); color: var(--ice-dim); }
.ladder { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.ladder li { display: grid; grid-template-columns: 70px 1fr; gap: 14px; align-items: baseline; padding: 11px 14px; border-radius: 6px; color: var(--ice-dim); font-size: 16px; transition: background .25s, color .25s; }
.l-t { font: 500 14px/1 var(--mono); font-variant-numeric: tabular-nums; }
.ladder li.hit { color: var(--frost); background: rgba(159, 208, 255, 0.07); }
.ladder li.hit .l-t { color: #9fd0ff; }
.ladder li.hit::marker { content: none; }

.park { border: 1px solid var(--line); border-radius: var(--r); padding: 20px; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; background: var(--night); }
.park legend { font: 700 20px/1 var(--display); text-transform: uppercase; letter-spacing: 0.04em; padding: 0 6px; }
.park legend span { font: 400 13px/1 var(--body); text-transform: none; letter-spacing: 0; color: var(--ice-dim); margin-left: 6px; }
.chip { position: relative; cursor: pointer; }
.chip input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.chip span { display: inline-block; padding: 10px 14px; border-radius: 6px; border: 1px solid var(--line-2); font-size: 15px; color: var(--ice); transition: all .2s; }
.chip input:checked + span { border-color: var(--ember); color: var(--frost); background: var(--ember-soft); }
.chip input:focus-visible + span { outline: 2px solid var(--ember-2); outline-offset: 2px; }
.rec { background: linear-gradient(160deg, rgba(255,107,44,0.16), rgba(255,107,44,0.03) 60%), var(--cab-2); border: 1px solid rgba(255,107,44,0.4); border-radius: var(--r); padding: 24px; display: grid; gap: 14px; }
.rec-lbl { font: 500 13px/1 var(--mono); color: var(--ice); text-transform: uppercase; letter-spacing: 0.1em; }
.rec-lbl b { color: var(--frost); }
.rec-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.rec-list li { display: grid; gap: 2px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.rec-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.rec-list a { font: 700 26px/1.05 var(--display); text-transform: uppercase; text-decoration: none; color: var(--frost); }
.rec-list a:hover { color: var(--ember-2); }
.rec-list small { color: var(--ice); font-size: 15px; }
.rec-note { font-size: 14px; color: var(--ice); }

/* Lineup */
.lineup-tabs { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 69px); z-index: 20; display: flex; gap: 6px; overflow-x: auto; padding: 10px 0; margin-bottom: 18px; background: var(--night); border-bottom: 1px solid var(--line); scrollbar-width: none; }
.lineup-tabs::-webkit-scrollbar { display: none; }
.lineup-tabs a { flex: none; text-decoration: none; font: 600 15px/1 var(--body); color: var(--ice); padding: 10px 14px; border-radius: 6px; transition: all .2s; }
.lineup-tabs a:hover { color: var(--frost); background: var(--cab-2); }
.lineup-tabs a.on { color: var(--frost); background: var(--ember-soft); box-shadow: inset 0 -2px 0 var(--ember); }

.heater { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; padding-block: 56px; border-bottom: 1px solid var(--line); }
.heater:last-child { border-bottom: 0; }
.h-main { display: flex; flex-direction: column; gap: 18px; }
.h-kicker { font: 500 13px/1 var(--mono); color: var(--ember-2); text-transform: uppercase; letter-spacing: 0.1em; }
.heater h3 { font-size: clamp(42px, 5.4vw, 64px); font-weight: 800; text-transform: uppercase; }
.h-one { font-size: 20px; color: var(--frost); }
.h-main > p:not(.h-kicker):not(.h-one) { color: var(--ice); }
.h-pain { margin: 0; padding: 18px 20px; background: rgba(159, 208, 255, 0.06); border: 1px solid rgba(159, 208, 255, 0.18); border-radius: 8px; font-size: 17px; color: #d4e6f5; }
.h-pain span { display: block; font: 500 12px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.14em; color: #9fd0ff; margin-bottom: 8px; }
.chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { font-size: 14px; color: var(--ice); border: 1px solid var(--line-2); padding: 6px 11px; border-radius: 999px; }
.h-cta { align-self: flex-start; font: 700 18px/1 var(--display); text-transform: uppercase; letter-spacing: 0.06em; color: var(--ember-2); text-decoration: none; padding: 4px 0; border-bottom: 2px solid var(--ember); }
.h-cta:hover { color: var(--frost); }
.h-side { display: grid; gap: 18px; align-content: start; }
.diagram { background: var(--cab); border: 1px solid var(--line); border-radius: var(--r); padding: 18px 14px 10px; }
.diagram svg { width: 100%; height: auto; display: block; }
.h-photos { display: grid; grid-template-columns: 1.4fr 1fr; gap: 10px; }
.h-photos img { width: 100%; height: 100%; aspect-ratio: 3 / 3.4; object-fit: cover; border-radius: var(--r); border: 1px solid var(--line); }
.specs { margin: 0; display: grid; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: var(--night); }
.specs > div { display: grid; grid-template-columns: 130px 1fr; gap: 16px; padding: 13px 18px; border-bottom: 1px solid var(--line); align-items: baseline; }
.specs > div:last-child { border-bottom: 0; }
.specs dt { font: 500 12px/1.3 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--ice-dim); }
.specs dd { margin: 0; font: 500 15px/1.4 var(--mono); color: var(--frost); font-variant-numeric: tabular-nums; }
.specs small { color: var(--ice); font-size: 13px; }


/* Photo viewer */
.pgal { display: grid; gap: 10px; }
.pgal-main { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; border-radius: var(--r); border: 1px solid var(--line); background: var(--cab); }
.pgal-thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); gap: 8px; }
.pgal-thumbs button { display: grid; gap: 6px; padding: 0; background: none; border: 0; cursor: pointer; text-align: left; color: var(--ice-dim); font: 400 12px/1.25 var(--mono); }
.pgal-thumbs img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 6px; border: 2px solid transparent; opacity: .7; transition: opacity .2s, border-color .2s; }
.pgal-thumbs button:hover img { opacity: 1; }
.pgal-thumbs button[aria-pressed="true"] img { opacity: 1; border-color: var(--ember); }
.pgal-thumbs button[aria-pressed="true"] { color: var(--frost); }
.where { margin: 8px 0 0; display: grid; gap: 8px; }
.where figcaption { font: 500 12px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.1em; color: var(--ice-dim); }

/* Gallery */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.gallery figure { margin: 0; display: grid; gap: 10px; }
.gallery img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: var(--r); border: 1px solid var(--line); }
.gallery figcaption { font: 400 13px/1.3 var(--mono); color: var(--ice); }

/* Why */
.why { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: start; }
.why-head p:last-child { margin-top: 20px; color: var(--ice); font-size: 18px; }
.why-list { margin: 0; display: grid; }
.why-list > div { display: grid; grid-template-columns: 210px 1fr; gap: 20px; padding: 20px 0; border-top: 1px solid var(--line); }
.why-list > div:last-child { border-bottom: 1px solid var(--line); }
.why-list dt { font: 700 22px/1.1 var(--display); text-transform: uppercase; letter-spacing: 0.03em; }
.why-list dd { margin: 0; color: var(--ice); }

/* FAQ */
.faq-wrap { max-width: 900px; }
.faq { display: grid; gap: 10px; }
.faq details { background: var(--night); border: 1px solid var(--line); border-radius: var(--r); }
.faq summary { list-style: none; cursor: pointer; padding: 20px 56px 20px 22px; font: 600 18px/1.35 var(--body); position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font: 400 28px/1 var(--body); color: var(--ember-2); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { padding: 0 22px 22px; color: var(--ice); max-width: 62ch; }

/* Quote */
.quote-sec { background:
  radial-gradient(700px 400px at 90% 100%, rgba(255,107,44,0.16), transparent 60%), var(--night); }
.quote { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
.q-copy p:not(.eyebrow) { margin-top: 18px; color: var(--ice); font-size: 18px; }
.q-card { background: var(--cab); border: 1px solid var(--line-2); border-radius: 14px; padding: 28px; display: grid; gap: 14px; }
.q-lbl { font: 500 12px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.12em; color: var(--ice); }
.q-big { font: 800 clamp(40px, 6vw, 60px)/1 var(--display); letter-spacing: 0.01em; color: var(--frost); font-variant-numeric: tabular-nums; user-select: all; }
.q-hint { font-size: 14px; color: var(--ice-dim); }

/* Footer */
.ftr { background: #060c13; border-top: 1px solid var(--line); padding-top: 56px; }
.ftr-in { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.ftr-brand p { margin-top: 14px; color: var(--ice); }
.ftr-loc { font: 400 13px/1.4 var(--mono); color: var(--ice-dim) !important; }
.ftr h4 { font-size: 18px; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 14px; color: var(--ice); }
.ftr ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.ftr ul a { text-decoration: none; color: var(--frost); font-size: 15px; }
.ftr ul a:hover { color: var(--ember-2); }
.ftr-base { margin-top: 44px; padding-block: 20px; border-top: 1px solid var(--line); font-size: 13px; color: var(--ice-dim); }

/* Diagram SVG pieces */
.dg-line { fill: none; stroke: var(--ice-dim); stroke-width: 1.6; stroke-linejoin: round; }
.dg-fill { fill: #1a2b3c; stroke: var(--ice-dim); stroke-width: 1.6; stroke-linejoin: round; }
.dg-glass { fill: #20364c; stroke: var(--ice-dim); stroke-width: 1.4; }
.dg-wheel { fill: #0a121c; stroke: var(--ice-dim); stroke-width: 1.6; }
.dg-hub { fill: #1a2b3c; }
.dg-ground { stroke: var(--line-2); stroke-width: 1.4; stroke-dasharray: 4 5; }
.dg-hot { fill: var(--ember); }
.dg-hot-line { fill: none; stroke: var(--ember); stroke-width: 2.4; stroke-linecap: round; }
.dg-wave { fill: none; stroke: var(--ember-2); stroke-width: 2; stroke-linecap: round; opacity: 0.85; }
.dg-lbl { fill: var(--frost); font: 600 13px var(--mono); }
.dg-sub { fill: var(--ice); font: 400 11px var(--mono); }
.dg-snow { fill: var(--ice-dim); opacity: .5; }
@media (prefers-reduced-motion: no-preference) {
  .dg-wave { animation: rise 2.4s ease-in-out infinite; }
  .dg-wave:nth-of-type(2) { animation-delay: .4s; }
  .dg-wave:nth-of-type(3) { animation-delay: .8s; }
}
@keyframes rise { 0%,100% { transform: translateY(0); opacity: .85; } 50% { transform: translateY(-4px); opacity: .45; } }

/* ════════════ Contact: WhatsApp button, sticky bar, nudge ════════════ */
.btn-wa { background: #25d366; color: #062b14; }
.btn-wa:hover { background: #3be07a; transform: translateY(-1px); }
.btn svg { width: 22px; height: 22px; flex: none; }

.cbar { display: none; }
@media (max-width: 760px) {
  .cbar {
    display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 10px;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0px));
    background: rgba(6, 12, 19, 0.94); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--line-2);
    transition: transform .3s ease;
  }
  .cbar.off { transform: translateY(110%); }
  .cbar .btn { padding: 15px 10px; font-size: 18px; }
  body { padding-bottom: calc(76px + env(safe-area-inset-bottom, 0px)); }
}

.nudge {
  position: fixed; z-index: 70; right: 20px; bottom: 20px; width: min(380px, calc(100vw - 32px));
  background: linear-gradient(160deg, rgba(255,107,44,0.18), rgba(255,107,44,0.02) 55%), var(--cab-2);
  border: 1px solid rgba(255,107,44,0.45); border-radius: 14px; padding: 20px 20px 18px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.55);
  display: grid; gap: 12px;
  transform: translateY(24px); opacity: 0; visibility: hidden;
  transition: transform .35s ease, opacity .35s ease, visibility .35s;
}
.nudge.show { transform: none; opacity: 1; visibility: visible; }
.nudge h2 { font-size: 28px; font-weight: 800; text-transform: uppercase; padding-right: 36px; }
.nudge p { color: #d4e2ee; font-size: 16px; line-height: 1.45; }
.nudge-btns { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 10px; margin-top: 4px; }
.nudge-btns .btn { padding: 14px 10px; }
.nudge-x {
  position: absolute; top: 10px; right: 10px; width: 40px; height: 40px; border-radius: 50%;
  background: transparent; border: 0; color: var(--ice); font: 400 28px/1 var(--body); cursor: pointer;
}
.nudge-x:hover { color: var(--frost); background: rgba(255,255,255,0.06); }
@media (max-width: 760px) {
  .nudge { left: 12px; right: 12px; width: auto; bottom: calc(84px + env(safe-area-inset-bottom, 0px)); }
}

/* ════════════ Home (simple, mobile-first) ════════════ */
.home .hdr-in { min-height: 62px; }
.hm-hero { padding-block: 28px 36px; }
.hm-hero-in {
  position: relative; display: grid; grid-template-columns: minmax(0, 1fr); gap: 18px;
  grid-template-areas: "copy" "shot" "cta" "reply";
}
.hm-copy { grid-area: copy; }
.hm-copy .eyebrow { margin-bottom: 10px; letter-spacing: 0.1em; }
.hm-hero h1 { font-size: clamp(42px, 11.5vw, 96px); font-weight: 800; text-transform: uppercase; line-height: 0.92; }
.hm-lede { margin-top: 14px; font-size: 18px; line-height: 1.45; color: #c9d7e3; max-width: 30em; }
.hm-shot { grid-area: shot; position: relative; margin: 0; border-radius: 14px; overflow: hidden; border: 1px solid var(--line-2); box-shadow: 0 24px 60px rgba(0,0,0,0.45); }
.hm-shot { aspect-ratio: 1 / 1; background: var(--cab-2); }
.hm-slide {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: 0; transform: scale(1.06); transition: opacity 0.9s ease, transform 4.5s ease-out;
}
.hm-slide.on { opacity: 1; transform: scale(1); }
.hm-show-bar {
  position: absolute; left: 10px; right: 10px; bottom: 10px; display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.hm-show-lbl {
  padding: 8px 12px; border-radius: 8px; background: rgba(6,12,19,0.84); border: 1px solid var(--line-2);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  font: 700 16px/1 var(--display); text-transform: uppercase; letter-spacing: 0.06em; color: var(--frost);
}
.hm-show-lbl { min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pos-top { object-position: center top; }
.hm-dots { display: flex; gap: 2px; padding: 2px 4px; border-radius: 999px; background: rgba(6,12,19,0.7); }
.hm-dots button { width: 28px; height: 28px; padding: 0; border: 0; background: none; cursor: pointer; display: grid; place-items: center; }
.hm-dots button::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: rgba(234,242,248,0.45); transition: background .3s, width .3s; }
.hm-dots button[aria-current="true"]::before { width: 18px; border-radius: 4px; background: var(--ember); }
@media (prefers-reduced-motion: reduce) { .hm-slide { transform: none !important; } }
.hm-temp {
  position: absolute; left: 12px; bottom: 12px; display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; border-radius: 10px; background: rgba(6,12,19,0.86);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border: 1px solid var(--line-2); font-family: var(--mono);
}
.hm-temp span { display: grid; gap: 2px; }
.hm-temp small { font-size: 10px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--ice-dim); }
.hm-temp b { font: 700 32px/1 var(--display); }
.hm-temp .cold { color: #9fd0ff; } .hm-temp .warm { color: var(--ember-2); }
.hm-temp i { font-style: normal; color: var(--ice-dim); }
.hm-cta { grid-area: cta; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 10px; }
.hm-cta .btn { padding: 18px 10px; font-size: 19px; white-space: nowrap; letter-spacing: 0.05em; }
.hm-reply { grid-area: reply; font: 400 13px/1.4 var(--mono); color: var(--ice); text-align: center; }

.hm-sec { padding-block: 56px; }
.hm-sec .sec-head { margin-bottom: 24px; }
.hm-sec .sec-head h2 { font-size: clamp(32px, 8vw, 56px); }

.hm-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.hm-card { display: flex; flex-direction: column; background: var(--cab); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.hm-media { display: block; aspect-ratio: 4 / 3; background: var(--cab-2); overflow: hidden; }
.hm-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.hm-card:hover .hm-media img { transform: scale(1.04); }
.hm-media .diagram.mini { height: 100%; border: 0; border-radius: 0; padding: 8px 4px; display: flex; align-items: center; background: radial-gradient(120% 90% at 50% 70%, rgba(255,107,44,0.12), transparent 60%), var(--cab-2); }
.diagram.mini .dg-lbl, .diagram.mini .dg-sub, .diagram.mini polyline { display: none; }
.diagram.mini svg { transform: scale(1.12); transform-origin: 46% 60%; }
.hm-body { display: flex; flex-direction: column; gap: 4px; padding: 12px 12px 14px; flex: 1; }
.hm-body h3 { font-size: 22px; font-weight: 700; text-transform: uppercase; }
.hm-body p { font-size: 14px; line-height: 1.35; color: var(--ice); flex: 1; }
.hm-ask {
  margin-top: 10px; display: block; text-align: center; text-decoration: none;
  font: 700 15px/1 var(--display); letter-spacing: 0.08em; text-transform: uppercase;
  color: #062b14; background: #25d366; padding: 12px 8px; border-radius: 6px;
}
.hm-ask:hover { background: #3be07a; }

.hm-strip {
  display: grid; grid-auto-flow: column; grid-auto-columns: 72%; gap: 12px;
  overflow-x: auto; scroll-snap-type: x mandatory; margin-inline: -20px; padding-inline: 20px; scroll-padding-inline: 20px; padding-bottom: 6px;
  scrollbar-width: none;
}
.hm-strip::-webkit-scrollbar { display: none; }
.hm-strip figure { margin: 0; scroll-snap-align: start; display: grid; gap: 8px; }
.hm-strip img { width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; border-radius: var(--r); border: 1px solid var(--line); }
.hm-strip figcaption { font: 400 13px/1.3 var(--mono); color: var(--ice); }
.hm-proof { list-style: none; padding: 0; margin: 28px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.hm-proof li { display: grid; gap: 2px; padding: 14px; background: var(--night); border: 1px solid var(--line); border-radius: var(--r); font-size: 14px; color: var(--ice); }
.hm-proof b { font: 700 19px/1.1 var(--display); text-transform: uppercase; letter-spacing: 0.03em; color: var(--frost); }

.hm-final { max-width: 720px; display: grid; grid-template-columns: minmax(0, 1fr); gap: 4px; }
.hm-final h2 { font-size: clamp(32px, 8vw, 58px); overflow-wrap: break-word; font-weight: 700; text-transform: uppercase; }
.hm-final .hm-cta { grid-area: auto; margin-top: 22px; max-width: 520px; }
.hm-more { margin-top: 22px; justify-self: start; color: var(--ember-2); font: 700 18px/1 var(--display); text-transform: uppercase; letter-spacing: 0.06em; text-decoration: none; border-bottom: 2px solid var(--ember); padding-bottom: 4px; }
.hm-more:hover { color: var(--frost); }

.hm-ftr { padding-top: 28px; }
.hm-ftr-links { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.hm-ftr-links a { color: var(--frost); text-decoration: none; font-size: 15px; padding: 6px 0; }
.hm-ftr-links a:hover { color: var(--ember-2); }
.hm-ftr .ftr-base { margin-top: 18px; }

/* More info page intro */
.mi-intro { padding-block: 48px 8px; background: linear-gradient(180deg, #0b1624 0%, var(--night) 100%); }
.mi-intro h1 { font-size: clamp(40px, 7vw, 76px); font-weight: 800; text-transform: uppercase; }
.mi-intro .lede { margin-top: 16px; }
.mi-jump { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.mi-jump a { text-decoration: none; color: var(--ice); border: 1px solid var(--line-2); padding: 10px 14px; border-radius: 999px; font-size: 15px; }
.mi-jump a:hover { color: var(--frost); border-color: var(--ice); }

/* Home: larger screens */
@media (min-width: 761px) {
  .hm-hero { padding-block: 64px 72px; }
  .hm-hero-in {
    grid-template-columns: 1.1fr 0.9fr; column-gap: 56px; row-gap: 22px; align-items: end;
    grid-template-areas: "copy shot" "cta shot" "reply shot";
  }
  .hm-cta { max-width: 520px; }
  .hm-hero-in { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); }
  .hm-reply { text-align: left; align-self: start; }
  .hm-shot { aspect-ratio: 1 / 1.05; }
  .hm-sec { padding-block: 88px; }
  .hm-cards { grid-template-columns: repeat(4, 1fr); gap: 16px; }
  .hm-body { padding: 16px 16px 18px; }
  .hm-body h3 { font-size: 26px; }
  .hm-body p { font-size: 15px; }
  .hm-strip { grid-auto-columns: calc((100% - 36px) / 4); margin-inline: 0; padding-inline: 0; }
  .hm-proof { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 360px) {
  .hm-cta, .cbar, .nudge-btns { grid-template-columns: 1fr; }
  .hm-cards { gap: 8px; }
  .hm-body h3 { font-size: 19px; }
}

/* Partners strip (home) */
.hm-partner { padding-block: 44px; border-top: 1px solid var(--line); background: var(--cab); }
.hm-partner-in { display: grid; gap: 22px; align-items: center; }
.hm-partner h2 { font-size: clamp(30px, 7vw, 46px); font-weight: 700; text-transform: uppercase; }
.hm-partner p:not(.eyebrow) { margin-top: 8px; color: var(--ice); font-size: 16px; }
.hm-cities { list-style: none; padding: 0; margin: 16px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.hm-cities li { font: 500 14px/1 var(--mono); color: var(--frost); border: 1px solid var(--line-2); padding: 8px 12px; border-radius: 999px; }
.hm-partner .btn { justify-self: start; }
.hm-reply b { color: var(--frost); font-weight: 500; }
.ftr-loc a { color: var(--ember-2); }
@media (min-width: 761px) { .hm-partner-in { grid-template-columns: 1fr auto; gap: 40px; } }

/* Responsive */
@media (max-width: 1080px) {
  .nav { gap: 18px; }
  .hide-md { display: none; }
  .pains { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 920px) {
  .burger { display: inline-flex; }
  .nav { position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; gap: 0; margin: 0; background: #0b1520; border-bottom: 1px solid var(--line); padding: 8px 20px 16px; display: none; }
  .nav.open { display: flex; }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 18px; }
  .hero-in, .cc, .heater, .why, .quote { grid-template-columns: 1fr; }
  .hero-in { gap: 36px; }
  .hero-card { justify-self: start; max-width: 520px; }
  .proof { grid-template-columns: repeat(2, 1fr); }
  .proof li:nth-child(3) { border-left: 0; padding-left: 0; }
  .heater { gap: 28px; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .ftr-in { grid-template-columns: 1fr 1fr; }
  .why { gap: 32px; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .hide-sm { display: none; }
  .util-item + .util-item::before { display: none; }
  .util-in { gap: 4px 16px; font-size: 12px; }
  .hdr-in { gap: 10px; min-height: 60px; }
  .brand { font-size: 19px; }
  .brand img { width: 30px; }
  .cool-link { padding: 8px 11px; font-size: 14px; }
  .sec { padding-block: 68px; }
  .hero { padding-block: 40px 28px; }
  .pains { grid-template-columns: 1fr; }
  .proof { grid-template-columns: 1fr 1fr; margin-top: 36px; }
  .proof li { padding: 16px 12px 0 0; }
  .proof li + li { padding-left: 12px; }
  .proof li:nth-child(3) { padding-left: 0; }
  .specs > div { grid-template-columns: 1fr; gap: 4px; }
  .why-list > div { grid-template-columns: 1fr; gap: 6px; }
  .q-card { padding: 20px; }
  .ftr-in { grid-template-columns: 1fr; }
  .lineup-tabs { top: calc(env(safe-area-inset-top, 0px) + 61px); }
  .thermo-num { font-size: 68px; }
  .ladder li { grid-template-columns: 58px 1fr; gap: 10px; padding: 10px; font-size: 15px; }
}
@media (max-width: 400px) {
  .brand { font-size: 18px; gap: 7px; }
  .brand img { width: 28px; }
  .hdr-in { gap: 8px; }
  .cool-link { padding: 8px 10px; gap: 6px; font-size: 13px; }
  .cool-link .arr { display: none; }
}
@media (max-width: 340px) {
  .brand { font-size: 16px; }
  .cool-link svg:first-child { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}