:root {
    color-scheme: light;
    --boiler-bg: #f7f8fa;
    --boiler-surface: #ffffff;
    --boiler-dark: #20272b;
    --boiler-graphite: #293336;
    --boiler-text: #20272b;
    --boiler-muted: #667085;
    --boiler-line: #dfe3e8;
    --boiler-blue: #176366;
    --boiler-blue-hover: #0e4d50;
    --boiler-orange: #f59e0b;
    --boiler-orange-dark: #d97706;
    --boiler-green: #16794b;
    --boiler-green-soft: #e8f6ee;
    --boiler-order-soft: #fff4dc;
    --boiler-radius: 8px;
    --boiler-shadow: 0 22px 60px rgba(17, 24, 39, .1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--boiler-text);
    background: var(--boiler-bg);
    font-family: Inter, Arial, sans-serif;
    letter-spacing: 0;
}
body::before {
    position: fixed;
    inset: 0;
    z-index: -1;
    content: "";
    opacity: .028;
    background-image: radial-gradient(circle at 1px 1px, #111827 1px, transparent 0);
    background-size: 20px 20px;
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
img { display: block; max-width: 100%; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid rgba(59, 130, 246, .82); outline-offset: 3px; }

.skip-link {
    position: fixed;
    top: 8px;
    left: 8px;
    z-index: 100;
    padding: 10px 14px;
    transform: translateY(-150%);
    background: #fff;
    border-radius: 6px;
}
.skip-link:focus { transform: translateY(0); }

.boiler-container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.boiler-section { padding: 104px 0; scroll-margin-top: 104px; }
.boiler-eyebrow {
    margin: 0 0 14px;
    color: var(--boiler-blue);
    font-size: 13px;
    font-weight: 800;
    line-height: 1.3;
    text-transform: uppercase;
}
.boiler-section-heading { max-width: 760px; margin-bottom: 42px; }
.boiler-section-heading h2,
.boiler-contact h2,
.boiler-result h2 {
    margin: 0;
    font-size: 40px;
    line-height: 1.04;
}
.boiler-section-heading > p:last-child,
.boiler-contact-grid > div > p,
.boiler-result-summary > p {
    max-width: 700px;
    margin: 18px 0 0;
    color: var(--boiler-muted);
    font-size: 17px;
    line-height: 1.7;
}

.boiler-header {
    position: fixed;
    top: 14px;
    left: 50%;
    z-index: 50;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    width: min(1180px, calc(100% - 28px));
    min-height: 66px;
    padding: 10px 13px;
    transform: translateX(-50%);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: var(--boiler-radius);
    background: rgba(12, 18, 26, .84);
    backdrop-filter: blur(18px);
    transition: background .2s ease, box-shadow .2s ease;
}
.boiler-header.is-scrolled { background: rgba(12, 18, 26, .96); box-shadow: 0 16px 42px rgba(0, 0, 0, .24); }
.boiler-brand { display: inline-flex; align-items: center; gap: 11px; min-width: 0; }
.boiler-brand-mark {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    flex: 0 0 auto;
    color: #fff;
    border-radius: 7px;
    background: linear-gradient(135deg, var(--boiler-blue), var(--boiler-blue-hover));
    font-weight: 900;
}
.boiler-brand strong, .boiler-brand small { display: block; }
.boiler-brand strong { font-size: 14px; }
.boiler-brand small { margin-top: 2px; color: rgba(255, 255, 255, .62); font-size: 11px; }
.boiler-nav { display: flex; gap: 4px; padding: 4px; border: 1px solid rgba(255, 255, 255, .1); border-radius: 7px; }
.boiler-nav a { padding: 9px 11px; color: rgba(255, 255, 255, .72); border-radius: 5px; font-size: 13px; font-weight: 700; }
.boiler-nav a:hover { color: #fff; background: rgba(255, 255, 255, .09); }
.boiler-header-actions { justify-self: end; display: flex; align-items: center; gap: 12px; }
.boiler-lang { display: flex; gap: 3px; padding: 3px; border: 1px solid rgba(255, 255, 255, .12); border-radius: 7px; }
.boiler-lang a { display: grid; place-items: center; width: 34px; height: 30px; color: rgba(255, 255, 255, .66); border-radius: 5px; font-size: 12px; font-weight: 800; }
.boiler-lang a.is-active { color: #fff; background: var(--boiler-blue); }
.boiler-phone { white-space: nowrap; font-weight: 800; }

.boiler-hero {
    position: relative;
    overflow: hidden;
    min-height: min(880px, 100vh);
    padding: 150px 0 90px;
    color: #fff;
    background: linear-gradient(120deg, #0b1118 0%, #1f2933 58%, #111827 100%);
}
.boiler-hero::after {
    position: absolute;
    inset: 0;
    content: "";
    pointer-events: none;
    opacity: .22;
    background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: linear-gradient(to bottom, #000, transparent 92%);
}
.boiler-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(420px, .92fr); align-items: center; gap: 54px; }
.boiler-hero-copy { min-width: 0; }
.boiler-hero-copy h1 { max-width: 900px; margin: 0; font-size: 52px; line-height: 1.08; overflow-wrap: anywhere; }
.boiler-hero .boiler-eyebrow { color: #7db0ff; }
.boiler-lead { max-width: 680px; margin: 26px 0 0; color: rgba(255,255,255,.78); font-size: 19px; line-height: 1.62; }
.boiler-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.boiler-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 12px 18px;
    border: 1px solid transparent;
    border-radius: 7px;
    font-weight: 800;
    transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.boiler-button:hover { transform: translateY(-2px); }
.boiler-button-primary { color: #111827; background: linear-gradient(135deg, var(--boiler-orange), #fbbf24); box-shadow: 0 12px 30px rgba(245, 158, 11, .22); }
.boiler-button-primary:hover { background: linear-gradient(135deg, #fbbf24, var(--boiler-orange)); }
.boiler-button-ghost { color: #fff; border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.06); }
.boiler-button-secondary { color: var(--boiler-text); border-color: var(--boiler-line); background: #fff; }
.boiler-note { max-width: 650px; margin: 24px 0 0; color: rgba(255,255,255,.58); font-size: 13px; line-height: 1.55; }
.boiler-hero-visual { position: relative; min-height: 560px; }
.boiler-model { position: absolute; overflow: hidden; background: #fff; border: 1px solid rgba(255,255,255,.18); border-radius: var(--boiler-radius); box-shadow: 0 30px 70px rgba(0,0,0,.3); }
.boiler-model img { width: 100%; height: 100%; object-fit: contain; }
.boiler-model span { position: absolute; right: 14px; bottom: 14px; padding: 8px 10px; color: #fff; border-radius: 5px; background: rgba(17,24,39,.86); font-size: 12px; font-weight: 800; }
.boiler-model-main { inset: 20px 74px 46px 0; }
.boiler-model-small { width: 230px; height: 230px; right: 0; bottom: 0; }
.boiler-availability { position: absolute; top: 0; right: 10px; display: flex; align-items: center; gap: 8px; padding: 11px 13px; color: #d7fbe7; border: 1px solid rgba(90, 214, 147, .28); border-radius: 6px; background: rgba(14, 74, 47, .88); font-size: 12px; font-weight: 800; }
.boiler-availability i { width: 8px; height: 8px; border-radius: 50%; background: #62d99b; box-shadow: 0 0 0 5px rgba(98,217,155,.14); }

.boiler-selection { background: #fff; }
.boiler-quiz { overflow: hidden; border: 1px solid var(--boiler-line); border-radius: var(--boiler-radius); background: var(--boiler-surface); box-shadow: var(--boiler-shadow); }
.boiler-progress { padding: 22px 28px 0; color: var(--boiler-muted); font-size: 13px; font-weight: 800; }
.boiler-progress-track { height: 5px; margin-top: 12px; overflow: hidden; border-radius: 3px; background: #e9edf2; }
.boiler-progress-track i { display: block; width: 20%; height: 100%; background: linear-gradient(90deg, var(--boiler-blue), var(--boiler-orange)); transition: width .28s ease; }
.boiler-quiz form { padding: 42px 28px 28px; }
.boiler-step { min-height: 260px; padding: 0; border: 0; animation: boiler-step-in .28s ease; }
.boiler-step:not(.is-active) { display: none; }
.boiler-step legend { width: 100%; margin-bottom: 26px; font-size: 30px; font-weight: 850; line-height: 1.2; }
.boiler-step h3 { margin: 34px 0 16px; font-size: 17px; }
.boiler-number-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; max-width: 760px; }
.boiler-number-grid label > span:first-child, .boiler-form label > span { display: block; margin-bottom: 8px; color: var(--boiler-muted); font-size: 13px; font-weight: 700; }
.boiler-input-unit { display: flex; align-items: center; overflow: hidden; border: 1px solid var(--boiler-line); border-radius: 7px; background: #fff; }
.boiler-input-unit:focus-within { border-color: var(--boiler-blue); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.boiler-input-unit input { min-width: 0; width: 100%; height: 56px; padding: 0 16px; border: 0; outline: 0; font-size: 20px; font-weight: 800; }
.boiler-input-unit b { padding: 0 16px; color: var(--boiler-muted); font-size: 13px; }
.boiler-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.boiler-options-four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.boiler-options-two { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 760px; }
.boiler-options label { position: relative; cursor: pointer; }
.boiler-options input { position: absolute; opacity: 0; pointer-events: none; }
.boiler-options span { display: flex; align-items: center; min-height: 62px; padding: 13px 15px; border: 1px solid var(--boiler-line); border-radius: 7px; background: #fff; font-weight: 750; transition: border .18s ease, background .18s ease, box-shadow .18s ease; }
.boiler-options span::before { width: 16px; height: 16px; margin-right: 10px; flex: 0 0 auto; content: ""; border: 2px solid #a9b1bc; border-radius: 50%; }
.boiler-options input:checked + span { border-color: var(--boiler-blue); background: #f5f8ff; box-shadow: 0 0 0 2px rgba(37,99,235,.1); }
.boiler-options input:checked + span::before { border: 5px solid var(--boiler-blue); }
.boiler-options input:focus-visible + span { outline: 3px solid rgba(59,130,246,.6); outline-offset: 2px; }
.boiler-quiz-actions { display: flex; justify-content: space-between; gap: 12px; margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--boiler-line); }
.boiler-quiz-actions .boiler-button-primary { margin-left: auto; }
@keyframes boiler-step-in { from { opacity: 0; transform: translateX(12px); } to { opacity: 1; transform: translateX(0); } }

.boiler-result { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 56px; margin-top: 28px; padding: 38px; color: #fff; border-radius: var(--boiler-radius); background: var(--boiler-dark); box-shadow: var(--boiler-shadow); }
.boiler-result > * { min-width: 0; }
.boiler-result .boiler-eyebrow { color: #7db0ff; }
.boiler-result-summary > p { color: rgba(255,255,255,.66); }
.boiler-result h3 { margin: 0 0 16px; font-size: 18px; }
.boiler-result-list { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; }
.boiler-result-card { display: grid; grid-template-columns: 76px minmax(0, 1fr); align-items: start; gap: 12px 16px; min-width: 0; padding: 18px; color: var(--boiler-text); border: 1px solid var(--boiler-line); border-radius: 7px; background: #fff; }
.boiler-result-card.is-closest { border: 2px solid var(--boiler-blue); padding: 17px; background: #f1f8f7; }
.boiler-result-card > div { min-width: 0; }
.boiler-fit-label { display: block; margin: 9px 0 7px; color: var(--boiler-graphite); font-size: 13px; font-weight: 750; line-height: 1.5; }
.is-closest .boiler-fit-label { color: var(--boiler-blue); }
.for-comparison .boiler-fit-label { color: #86550a; }
.boiler-result-card .boiler-comparison-note { margin: 10px 0; padding-left: 10px; color: #69430c; border-left: 2px solid #d89a27; }
.boiler-match-note { margin: 0 0 18px; color: var(--boiler-muted); font-size: 14px; line-height: 1.65; }
.boiler-result-list + .boiler-result-empty + .boiler-match-note { margin: 18px 0 0; }
.boiler-accumulation-note { grid-column: 1 / -1; margin: 0; padding: 18px 0; border-top: 1px solid var(--boiler-line); border-bottom: 1px solid var(--boiler-line); font-size: 15px; line-height: 1.7; }
.boiler-result-card img { width: 76px; height: 76px; object-fit: contain; }
.boiler-result-card strong, .boiler-result-card small { display: block; }
.boiler-result-card small { margin-top: 6px; color: var(--boiler-muted); line-height: 1.6; }
.boiler-result-card .boiler-status { position: static; grid-column: 2; justify-self: start; white-space: normal; }
.boiler-result-card .boiler-details-link, .boiler-result-card .boiler-text-button { display: flex; align-items: center; width: fit-content; max-width: 100%; min-height: 44px; text-align: left; line-height: 1.5; }
.boiler-result-empty { color: rgba(255,255,255,.72); line-height: 1.6; }

.boiler-catalog-section { background: var(--boiler-bg); }
.boiler-heading-row { display: flex; align-items: end; justify-content: space-between; gap: 28px; max-width: none; }
.boiler-heading-row > div:first-child { max-width: 760px; }
.boiler-filter { display: flex; gap: 4px; padding: 4px; flex: 0 0 auto; border: 1px solid var(--boiler-line); border-radius: 7px; background: #fff; }
.boiler-filter button { min-height: 38px; padding: 7px 11px; color: var(--boiler-muted); border: 0; border-radius: 5px; background: transparent; font-weight: 750; }
.boiler-filter button.is-active { color: #fff; background: var(--boiler-blue); }
.boiler-product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.boiler-product { overflow: hidden; border: 1px solid var(--boiler-line); border-radius: var(--boiler-radius); background: #fff; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.boiler-product:hover { transform: translateY(-4px); border-color: #c7d0db; box-shadow: 0 18px 42px rgba(17,24,39,.1); }
.boiler-product.is-hidden { display: none; }
.boiler-product-media { position: relative; aspect-ratio: 1 / .8; padding: 16px; background: #f4f6f8; }
.boiler-product-media img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.boiler-product-media > a { display: block; width: 100%; height: 100%; }
.boiler-status { display: inline-flex; align-items: center; min-height: 26px; padding: 5px 8px; border-radius: 5px; font-size: 11px; font-weight: 850; }
.boiler-product-media .boiler-status { position: absolute; top: 12px; left: 12px; }
.boiler-status-in_stock { color: var(--boiler-green); background: var(--boiler-green-soft); }
.boiler-status-on_order { color: #985f00; background: var(--boiler-order-soft); }
.boiler-product-body { padding: 18px; }
.boiler-product-series { margin: 0; color: var(--boiler-muted); font-size: 13px; font-weight: 750; }
.boiler-product h3 { margin: 5px 0 0; font-size: 28px; }
.boiler-stock-count { margin: 9px 0 0; color: var(--boiler-green); font-size: 12px; font-weight: 800; }
.boiler-product ul { display: grid; gap: 7px; margin: 17px 0; padding: 15px 0; border-top: 1px solid var(--boiler-line); border-bottom: 1px solid var(--boiler-line); list-style: none; }
.boiler-product li { color: var(--boiler-muted); font-size: 12px; line-height: 1.4; }
.boiler-product li::before { margin-right: 7px; color: var(--boiler-blue); content: "•"; }
.boiler-text-button { padding: 0; color: var(--boiler-blue); border: 0; background: transparent; font-size: 13px; font-weight: 850; }
.boiler-text-button:hover { color: var(--boiler-blue-hover); }

.boiler-how { color: #fff; background: var(--boiler-graphite); }
.boiler-how .boiler-eyebrow { color: #7db0ff; }
.boiler-how-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid rgba(255,255,255,.15); }
.boiler-how-grid article { padding: 30px 30px 10px 0; }
.boiler-how-grid article + article { padding-left: 30px; border-left: 1px solid rgba(255,255,255,.15); }
.boiler-how-grid span { color: var(--boiler-orange); font-size: 13px; font-weight: 900; }
.boiler-how-grid h3 { margin: 18px 0 10px; font-size: 21px; }
.boiler-how-grid p { margin: 0; color: rgba(255,255,255,.64); line-height: 1.65; }

.boiler-contact { background: #fff; }
.boiler-contact-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); align-items: start; gap: 72px; }
.boiler-contact-phone { display: inline-block; margin-top: 28px; color: var(--boiler-blue); font-size: 24px; font-weight: 850; }
.boiler-form { display: grid; grid-template-columns: minmax(0, 1fr); min-width: 0; gap: 16px; padding: 28px; border: 1px solid var(--boiler-line); border-radius: var(--boiler-radius); background: var(--boiler-bg); }
.boiler-form input, .boiler-form textarea { min-width: 0; max-width: 100%; width: 100%; padding: 13px 14px; color: var(--boiler-text); border: 1px solid #cbd2da; border-radius: 6px; background: #fff; outline: 0; }
.boiler-form input { height: 48px; }
.boiler-form textarea { resize: vertical; }
.boiler-form input:focus, .boiler-form textarea:focus { border-color: var(--boiler-blue); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
.boiler-form-note { margin: 0; color: var(--boiler-muted); font-size: 12px; line-height: 1.5; }
.boiler-honeypot { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); }

.boiler-footer { padding: 28px 0; color: rgba(255,255,255,.72); background: #0c121a; }
.boiler-footer .boiler-container { display: flex; align-items: center; gap: 20px; }
.boiler-footer strong { color: #fff; }
.boiler-footer a { margin-left: auto; font-size: 13px; }

@media (max-width: 1020px) {
    .boiler-header { grid-template-columns: 1fr auto; }
    .boiler-nav { display: none; }
    .boiler-hero-grid { grid-template-columns: minmax(0, 1fr) 400px; gap: 28px; }
    .boiler-hero-visual { min-height: 460px; }
    .boiler-model-small { width: 180px; height: 180px; }
    .boiler-product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 780px) {
    .boiler-container { width: min(100% - 28px, 680px); }
    .boiler-section { padding: 76px 0; }
    .boiler-header { top: 8px; width: calc(100% - 16px); }
    .boiler-brand small, .boiler-phone { display: none; }
    .boiler-hero { min-height: auto; padding: 116px 0 50px; }
    .boiler-hero-grid { grid-template-columns: minmax(0, 1fr); }
    .boiler-hero-copy h1 { font-size: 44px; }
    .boiler-lead { font-size: 17px; }
    .boiler-hero-visual { min-height: 420px; }
    .boiler-model-main { inset: 10px 46px 36px 0; }
    .boiler-model-small { width: 150px; height: 150px; }
    .boiler-availability { top: 0; right: 0; }
    .boiler-number-grid, .boiler-options, .boiler-options-four, .boiler-options-two { grid-template-columns: 1fr; }
    .boiler-step { min-height: 430px; }
    .boiler-quiz form { padding: 32px 18px 20px; }
    .boiler-progress { padding: 18px 18px 0; }
    .boiler-result { grid-template-columns: minmax(0, 1fr); gap: 34px; padding: 26px 20px; }
    .boiler-heading-row { align-items: stretch; flex-direction: column; }
    .boiler-filter { align-self: flex-start; max-width: 100%; overflow-x: auto; }
    .boiler-product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .boiler-how-grid { grid-template-columns: 1fr; }
    .boiler-how-grid article { padding: 24px 0; }
    .boiler-how-grid article + article { padding-left: 0; border-top: 1px solid rgba(255,255,255,.15); border-left: 0; }
    .boiler-contact-grid { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 520px) {
    .boiler-header { min-height: 58px; padding: 8px 10px; }
    .boiler-brand { gap: 8px; }
    .boiler-brand-mark { width: 36px; height: 36px; }
    .boiler-brand strong { font-size: 12px; }
    .boiler-lang a { width: 30px; height: 28px; }
    .boiler-hero-copy h1 { font-size: 36px; }
    .boiler-actions { align-items: stretch; flex-direction: column; }
    .boiler-actions .boiler-button { width: 100%; }
    .boiler-hero-visual { min-height: 340px; }
    .boiler-model-main { inset: 8px 28px 30px 0; }
    .boiler-model-small { width: 118px; height: 118px; }
    .boiler-availability { max-width: 220px; }
    .boiler-section-heading h2, .boiler-contact h2, .boiler-result h2 { font-size: 34px; }
    .boiler-step legend { font-size: 27px; }
    .boiler-product-grid { grid-template-columns: 1fr; }
    .boiler-result-card { grid-template-columns: 64px minmax(0, 1fr); row-gap: 8px; }
    .boiler-result-card img { width: 64px; height: 64px; grid-row: 1; }
    .boiler-result-card > div { display: contents; }
    .boiler-result-card > div > * { grid-column: 1 / -1; }
    .boiler-result-card > div > strong { grid-column: 2; grid-row: 1; align-self: center; }
    .boiler-result-card .boiler-fit-label { margin: 4px 0 0; }
    .boiler-result-card small { margin: 0; }
    .boiler-result-card .boiler-status { grid-column: 1 / -1; justify-self: start; }
    .boiler-form { padding: 20px 16px; }
    .boiler-footer .boiler-container { align-items: flex-start; flex-direction: column; }
    .boiler-footer a { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

.boiler-details-link { display: inline-flex; align-items: center; min-height: 44px; padding: 7px 0; color: var(--boiler-blue); font-size: 14px; font-weight: 750; text-decoration: underline; text-underline-offset: 4px; }
.boiler-details-link:hover { color: var(--boiler-blue-hover); }
.boiler-card-specs { margin: 16px 0; font-size: 13px; }
.boiler-card-specs div { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 5px 14px; padding: 8px 0; border-bottom: 1px solid var(--boiler-line); }
.boiler-card-specs dt { color: var(--boiler-muted); }
.boiler-card-specs dd { margin: 0; font-weight: 700; }
.boiler-product-body > .boiler-text-button { display: block; min-height: 44px; text-align: left; }
.boiler-room { grid-column: 1 / -1; padding-top: 28px; border-top: 1px solid var(--boiler-line); }
.boiler-room h3 { margin: 0 0 14px; font-size: 24px; }
.boiler-room p, .boiler-room-section p { max-width: 960px; line-height: 1.7; }
.boiler-room-metrics { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin: 24px 0; }
.boiler-room-metrics div { padding-left: 18px; border-left: 3px solid var(--boiler-blue); }
.boiler-room-metrics span { display: block; color: var(--boiler-muted); font-size: 14px; }
.boiler-room-metrics strong { display: block; margin-top: 9px; font-size: 28px; }
.boiler-result-footnote { grid-column: 1 / -1; color: var(--boiler-muted); font-size: 13px; line-height: 1.7; }
.boiler-result .boiler-room-metrics span, .boiler-result .boiler-result-footnote { color: #b8c2d0; }
.boiler-result .boiler-room > .boiler-text-button { display: inline-flex; min-height: 44px; align-items: center; color: #7db0ff; text-decoration: underline; text-underline-offset: 4px; }
.boiler-detail-hero { padding-top: 140px; background: #fff; }
.boiler-detail-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); align-items: center; gap: 60px; }
.boiler-detail-grid h1 { margin: 16px 0 24px; font-size: 42px; overflow-wrap: anywhere; }
.boiler-detail-grid p { line-height: 1.7; }
.boiler-detail-photo { margin: 0; }
.boiler-detail-photo img { display: block; width: 100%; height: 360px; object-fit: contain; }
.boiler-detail-photo figcaption { margin-top: 16px; color: var(--boiler-muted); font-size: 12px; line-height: 1.6; }
.boiler-spec-layout { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 50px; align-items: start; }
.boiler-spec-layout h3 { margin: 32px 0 16px; font-size: 20px; }
.boiler-spec-table { width: 100%; border-collapse: collapse; table-layout: fixed; font-size: 14px; }
.boiler-spec-table th, .boiler-spec-table td { padding: 12px 10px; text-align: left; border-bottom: 1px solid var(--boiler-line); line-height: 1.6; overflow-wrap: anywhere; vertical-align: top; }
.boiler-spec-table th { width: 70%; font-weight: 500; }
.boiler-spec-table td { font-weight: 700; }
.boiler-drawing { display: block; width: 100%; height: auto; background: white; }
.boiler-room-section { background: #eef3f9; }
.boiler-sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
@media (max-width: 780px) {
    .boiler-detail-grid, .boiler-spec-layout { grid-template-columns: minmax(0, 1fr); gap: 28px; }
    .boiler-detail-photo img { height: 280px; }
    .boiler-detail-grid h1 { font-size: 32px; }
    .boiler-detail-hero { padding-top: 100px; }
    .boiler-spec-table { font-size: 13px; }
    .boiler-spec-table th { width: 66%; }
    .boiler-room-metrics { grid-template-columns: minmax(0, 1fr); gap: 18px; }
    .boiler-room-metrics strong { font-size: 26px; }
}

/* Diterma keeps the selector prominent and product photography unobstructed. */
body::before { display: none; }
.boiler-header { position: sticky; top: 0; left: auto; transform: none; width: 100%; min-height: 76px; padding: 10px max(20px, calc((100% - 1180px) / 2)); color: var(--boiler-text); background: #fff; border: 0; border-bottom: 1px solid var(--boiler-line); border-radius: 0; backdrop-filter: none; }
.boiler-brand-symbol { display: block; width: 54px; height: 54px; flex-shrink: 0; }
/* Show the complete triangle from the original shop logo; keep the separate brand text. */
.boiler-brand-symbol img { display: block; width: 100%; height: 100%; object-fit: contain; }
.boiler-brand strong { font-size: 22px; }
.boiler-brand small { color: var(--boiler-muted); }
.boiler-nav { border: 0; }
.boiler-nav a { color: var(--boiler-text); }
.boiler-nav a:hover { color: var(--boiler-blue); background: #edf5f4; }
.boiler-lang { border-color: var(--boiler-line); }
.boiler-lang a { color: var(--boiler-muted); width: 40px; height: 40px; }
.boiler-intro { padding: 54px 0 38px; background: #fff; border-bottom: 1px solid var(--boiler-line); }
.boiler-intro .boiler-lead { max-width: 940px; color: var(--boiler-muted); font-size: 18px; margin-top: 18px; }
.boiler-intro .boiler-note { max-width: 960px; color: var(--boiler-muted); margin-top: 16px; }
.boiler-intro .boiler-button-ghost { color: var(--boiler-text); border-color: var(--boiler-line); background: #fff; }
.boiler-intro .boiler-actions { margin-top: 22px; }
.boiler-series-strip { display: flex; flex-wrap: wrap; gap: 32px; margin-top: 30px; }
.boiler-series-strip a { display: flex; align-items: center; gap: 12px; }
.boiler-series-strip img { width: 64px; height: 72px; object-fit: contain; }
.boiler-series-strip span { font-size: 15px; font-weight: 700; }
.boiler-series-strip small { display: block; margin-top: 5px; color: var(--boiler-muted); font-size: 12px; font-weight: 400; }
.boiler-section { padding: 70px 0; }
.boiler-section-heading h2, .boiler-contact h2, .boiler-result h2 { line-height: 1.16; }
.boiler-selection { padding-top: 44px; }
.boiler-selection .boiler-section-heading { margin-bottom: 28px; }
.boiler-step { min-height: 240px; }
.boiler-result { color: var(--boiler-text); background: #fff; box-shadow: none; border: 1px solid var(--boiler-line); scroll-margin-top: 100px; }
.boiler-result-summary > p, .boiler-result .boiler-result-footnote, .boiler-result .boiler-room-metrics span { color: var(--boiler-muted); }
.boiler-result-card { background: transparent; border: 0; border-bottom: 1px solid var(--boiler-line); border-radius: 0; }
.boiler-result-card small { color: var(--boiler-muted); }
.boiler-result-empty { color: var(--boiler-muted); }
.boiler-result .boiler-room > .boiler-text-button { color: var(--boiler-blue); }
.boiler-result .boiler-eyebrow { color: var(--boiler-blue); }
.boiler-result .boiler-button-secondary { color: var(--boiler-text); border-color: var(--boiler-line); background: white; }
.boiler-buffer-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 32px; }
.boiler-buffer { display: grid; grid-template-columns: 130px minmax(0,1fr); gap: 24px; padding: 24px 0; border-top: 1px solid var(--boiler-line); }
.boiler-buffer img { width: 130px; height: 220px; object-fit: contain; mix-blend-mode: multiply; }
.boiler-buffer h3 { font-size: 23px; margin: 16px 0; overflow-wrap: anywhere; }
.boiler-buffer p, .boiler-model-intro p { color: var(--boiler-muted); line-height: 1.7; }
.boiler-model-intro { background: #edf5f4; }
.boiler-model-intro h2 { font-size: 30px; }
.boiler-model-intro p { max-width: 950px; font-size: 17px; }
.boiler-price, .boiler-buffer .boiler-price { color: var(--boiler-text); font-size: 24px; font-weight: 700; }
.boiler-price-note { color: var(--boiler-muted); font-size: 13px; line-height: 1.6; }
.boiler-borderline-note { padding: 16px 0; color: #69430c; border-top: 2px solid #d89a27; font-size: 14px; line-height: 1.7; }
.boiler-result-card.requires-review .boiler-fit-label { color: #69430c; background: #fff3d7; }
.boiler-result-card .boiler-price { display: block; margin: 10px 0; font-size: 20px; line-height: 1.4; }
.boiler-form-note.is-error { color: #a12622; }
.boiler-form button:disabled { opacity: .65; cursor: wait; transform: none; }
.boiler-result-contact { grid-column: 1 / -1; margin-top: 0; padding-top: 20px; border-top: 1px solid var(--boiler-line); }
.boiler-inquiry-context { margin: 0; padding-bottom: 16px; border-bottom: 1px solid var(--boiler-line); font-weight: 700; line-height: 1.6; overflow-wrap: anywhere; }
.boiler-buffer .boiler-text-button { display: block; min-height: 44px; text-align: left; }
.boiler-detail-hero { padding-top: 40px; }
.boiler-how .boiler-eyebrow { color: #b1dfd8; }
.boiler-room-section { background: #edf5f4; }
.boiler-footer { background: #172b34; }
.boiler-footer .boiler-container > a:first-child { margin-left: 0; }
.boiler-footer { padding: 48px 0 20px; }
.boiler-footer .boiler-footer-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr); align-items: start; gap: 48px; }
.boiler-footer a { display: block; width: fit-content; max-width: 100%; margin: 0; color: #e7eded; font-size: 15px; line-height: 1.6; overflow-wrap: anywhere; }
.boiler-footer a:hover { color: #f5bd54; }
.boiler-footer .boiler-brand { display: flex; color: #fff; }
.boiler-footer .boiler-brand strong { font-size: 24px; }
.boiler-footer h2 { margin: 0 0 18px; color: #fff; font-size: 18px; line-height: 1.4; }
.boiler-footer p { margin: 18px 0; max-width: 38ch; font-size: 14px; line-height: 1.8; }
.boiler-footer-links a, .boiler-footer-brand > a:not(.boiler-brand) { margin-top: 10px; }
.boiler-footer-contacts a { margin: 0 0 12px; font-size: 18px; font-weight: 700; }
.boiler-footer .boiler-footer-bottom { display: flex; flex-direction: row; justify-content: space-between; margin-top: 36px; padding-top: 20px; border-top: 1px solid #455055; font-size: 13px; }
.boiler-store-contacts p { max-width: 62ch; }
.boiler-store-phone-list { display: grid; gap: 18px; margin: 32px 0; }
@media (max-width: 900px) {
    .boiler-footer .boiler-footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
    .boiler-footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 540px) {
    .boiler-footer .boiler-footer-grid { grid-template-columns: minmax(0, 1fr); }
    .boiler-footer-brand { grid-column: auto; }
    .boiler-footer .boiler-footer-bottom { flex-wrap: wrap; gap: 12px; }
}
.boiler-form input:focus-visible, .boiler-form textarea:focus-visible { outline: 3px solid #176366; outline-offset: 2px; }
@media(max-width:780px) {
    .boiler-header { width: 100%; padding: 8px 14px; min-height: 66px; }
    .boiler-brand strong { font-size: 22px; }
    .boiler-section { padding: 48px 0; }
    .boiler-intro { padding: 34px 0 28px; }
    .boiler-hero-copy h1 { font-size: 38px; }
    .boiler-section-heading h2, .boiler-contact h2, .boiler-result h2 { font-size: 30px; }
    .boiler-step legend { font-size: 25px; }
    .boiler-step { min-height: 0; }
    .boiler-buffer-grid { grid-template-columns: 1fr; gap: 16px; }
    .boiler-detail-hero { padding-top: 30px; }
}
@media(max-width:520px) {
    .boiler-intro .boiler-actions { flex-direction: row; }
    .boiler-intro .boiler-actions .boiler-button { width: auto; flex: 1 1 140px; }
    .boiler-series-strip { gap: 16px; }
    .boiler-series-strip a { gap: 6px; flex: 1 1 140px; }
    .boiler-series-strip img { width: 42px; height: 52px; }
    .boiler-series-strip span { font-size: 13px; }
    .boiler-buffer { grid-template-columns: 90px minmax(0,1fr); gap: 18px; }
    .boiler-buffer img { width: 90px; height: 180px; }
    .boiler-buffer h3 { font-size: 21px; }
    .boiler-detail-grid h1 { font-size: 30px; }
    .boiler-spec-table th { width: 62%; }
}
@media (max-width: 360px) {
    .boiler-hero-copy h1 { font-size: 30px; }
    .boiler-section-heading h2 { font-size: 26px; }
}