:root{
  --red:#b71918;--red-dark:#82100f;--red-soft:#f8e8e7;--ink:#1f2428;--muted:#667078;
  --line:#e7e5e2;--warm:#f6f4f0;--warm-2:#eeeae4;--white:#fff;--green:#21b45b;
  --container:min(1180px,calc(100% - 48px));--radius:18px;--shadow:0 24px 70px rgba(35,31,27,.09);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:"DM Sans",Arial,sans-serif;-webkit-font-smoothing:antialiased}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}.container{width:var(--container);margin-inline:auto}.scroll-progress{position:fixed;z-index:100;top:0;left:0;height:3px;width:0;background:var(--red);box-shadow:0 0 12px rgba(183,25,24,.45)}
.topbar{height:38px;color:#fff;background:#242628;font-size:11px}.topbar__inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}.topbar__inner>span{font-weight:700;letter-spacing:.04em;text-transform:uppercase}.topbar__links{display:flex;gap:28px;align-items:center;color:#d7d8d8}.topbar__links a,.topbar__inner>a{color:#fff;font-weight:700}.header{position:sticky;z-index:50;top:0;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(0,0,0,.06);backdrop-filter:blur(14px);transition:box-shadow .25s}.header.is-scrolled{box-shadow:0 8px 30px rgba(20,20,20,.07)}.header__inner{height:84px;display:flex;align-items:center;justify-content:space-between;gap:36px}.brand{display:inline-flex;align-items:center}.brand__mark{display:none}.brand__text{display:flex;flex-direction:column;line-height:1}.brand__text strong{font-family:"Manrope";font-size:25px;letter-spacing:.12em;color:var(--red)}.brand__text small{margin-top:7px;color:#5f6569;font-size:10px;letter-spacing:.12em;text-transform:uppercase}.nav{display:flex;align-items:center;gap:31px}.nav a{font-size:13px;font-weight:600;color:#3e4448}.nav a:hover{color:var(--red)}.nav__cta{padding:13px 18px;border-radius:6px;color:#fff!important;background:var(--red)}.menu-toggle{display:none;width:42px;height:42px;padding:10px;border:0;background:transparent}.menu-toggle span{display:block;height:2px;margin:5px 0;background:#26292b;transition:.25s}
.button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 22px;border:1px solid transparent;border-radius:5px;font-size:13px;font-weight:700;cursor:pointer;transition:transform .2s,background .2s,border-color .2s,box-shadow .2s}.button:hover{transform:translateY(-2px)}.button--primary{color:#fff;background:var(--red);box-shadow:0 10px 24px rgba(183,25,24,.18)}.button--primary:hover{background:var(--red-dark)}.button--outline,.button--ghost,.button--back{border-color:#cac8c5;color:#292e31;background:#fff}.button--light{color:#24272a;background:#fff}.button--full{width:100%}.section-kicker,.eyebrow{display:inline-block;color:var(--red);font-size:11px;font-weight:800;letter-spacing:.15em;text-transform:uppercase}.section-kicker--light{color:#fff}.section{padding:112px 0}.center-heading{max-width:760px;margin:0 auto 52px;text-align:center}.center-heading h2,.split-intro h2,.featured-products h2,.calculator-banner h2,.why-arkibom h2,.faq-intro h2,.contact-clean h2{margin:15px 0 18px;font-family:"Manrope";font-size:clamp(36px,4.2vw,56px);line-height:1.08;letter-spacing:-.035em}.center-heading p,.split-intro__copy p,.featured-products__content>p,.calculator-banner p,.why-arkibom p,.faq-intro p,.contact-clean__copy>p{color:var(--muted);font-size:15px;line-height:1.8}
/* Home hero */
.clean-hero{position:relative;min-height:760px;overflow:hidden;background:linear-gradient(110deg,#f6f4f0 0%,#f6f4f0 61%,#ede9e3 61%,#ede9e3 100%)}.clean-hero::before{content:"";position:absolute;width:420px;height:420px;right:-120px;top:80px;border-radius:50%;border:1px solid rgba(183,25,24,.13)}.clean-hero__grid{min-height:710px;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:70px;padding-block:74px}.clean-hero__content{position:relative;z-index:2}.clean-hero h1{max-width:720px;margin:17px 0 24px;font-family:"Manrope";font-size:clamp(48px,5.7vw,78px);line-height:1.01;letter-spacing:-.055em}.clean-hero__content>p{max-width:650px;margin:0;color:#596269;font-size:17px;line-height:1.75}.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}.hero__proof{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:720px;margin-top:52px;padding-top:26px;border-top:1px solid #d8d4cf}.hero__proof strong,.hero__proof span{display:block}.hero__proof strong{font-size:12px}.hero__proof span{margin-top:6px;color:#7a8287;font-size:10px;line-height:1.45}.clean-hero__visual{position:relative;min-height:555px}.clean-hero__circle{position:absolute;width:430px;height:430px;right:10px;top:40px;border-radius:50%;background:#fff;box-shadow:0 35px 80px rgba(38,34,30,.08)}.clean-hero__card{position:absolute;display:flex;align-items:center;justify-content:center;border-radius:14px;background:#fff;box-shadow:0 24px 60px rgba(27,24,21,.12)}.clean-hero__card img{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 20px 18px rgba(0,0,0,.14))}.clean-hero__card>span{position:absolute;top:14px;left:15px;color:#6f7477;font-size:9px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.clean-hero__card--komeco{z-index:2;width:275px;height:360px;right:177px;top:70px;padding:28px}.clean-hero__card--rinnai{z-index:3;width:250px;height:325px;right:0;top:180px;padding:23px}.clean-hero__note{position:absolute;z-index:4;right:225px;bottom:32px;padding:15px 20px;border-left:3px solid var(--red);background:#fff;box-shadow:0 12px 35px rgba(30,27,24,.11)}.clean-hero__note strong,.clean-hero__note span{display:block}.clean-hero__note strong{font-size:13px}.clean-hero__note span{margin-top:3px;color:#747b80;font-size:10px}.hero-scroll-hint{position:absolute;bottom:23px;left:50%;display:flex;align-items:center;gap:9px;color:#777d81;font-size:10px;letter-spacing:.08em;text-transform:uppercase;transform:translateX(-50%)}.hero-scroll-hint span{width:25px;height:1px;background:var(--red)}
.brand-assurance{padding:28px 0;border-block:1px solid var(--line);background:#fff}.brand-assurance__inner{display:flex;align-items:center;justify-content:space-between;gap:35px}.brand-assurance__inner p{margin:0;color:#6c7377;font-size:12px}.brand-assurance__logos{display:flex;align-items:center;gap:22px}.brand-assurance__logos strong{font-family:"Manrope";font-size:20px;letter-spacing:.09em}.brand-assurance__logos strong:last-child{color:#d71920}.brand-assurance__logos span{color:#a4a6a7}
.split-intro{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:end}.split-intro h2{margin-bottom:0}.split-intro__copy{padding-bottom:3px}.text-link{display:inline-flex;gap:12px;margin-top:14px;color:var(--red);font-size:13px;font-weight:700}.benefit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:70px;background:var(--line);border:1px solid var(--line)}.benefit-card{min-height:260px;padding:34px;background:#fff}.benefit-card>span{display:block;margin-bottom:50px;color:var(--red);font-size:11px;font-weight:800}.benefit-card h3{margin:0 0 13px;font-family:"Manrope";font-size:20px}.benefit-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}
.featured-products{padding:115px 0;background:var(--warm)}.featured-products__grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:100px}.featured-products__image{position:relative;min-height:560px}.featured-products__image-bg{position:absolute;inset:40px 70px 10px 0;background:#ded9d2}.featured-products__image img{position:absolute;z-index:2;width:380px;height:470px;left:70px;top:0;object-fit:contain;filter:drop-shadow(0 30px 25px rgba(0,0,0,.14))}.floating-label{position:absolute;z-index:3;right:0;bottom:40px;padding:22px 28px;background:#fff;box-shadow:var(--shadow)}.floating-label strong,.floating-label span{display:block}.floating-label strong{font-size:14px}.floating-label span{margin-top:5px;color:var(--muted);font-size:11px}.clean-checks{list-style:none;padding:0;margin:28px 0 32px}.clean-checks li{position:relative;padding:13px 0 13px 29px;border-bottom:1px solid #dcd8d2;color:#4e5559;font-size:13px}.clean-checks li::before{content:"✓";position:absolute;left:0;color:var(--red);font-weight:800}
.gas-guide{background:#fff}.gas-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px}.gas-card{padding:42px;border:1px solid var(--line);background:#fff}.gas-card__label{width:58px;height:58px;display:grid;place-items:center;margin-bottom:30px;border-radius:50%;color:#fff;background:var(--red);font-family:"Manrope";font-size:18px;font-weight:800}.gas-card h3{margin:0 0 14px;font-family:"Manrope";font-size:29px}.gas-card p{color:var(--muted);font-size:14px;line-height:1.75}.gas-card ul{padding:0;list-style:none;margin:24px 0 0}.gas-card li{padding:12px 0;border-top:1px solid var(--line);color:#4d5559;font-size:12px}.gas-alert{margin-top:26px;padding:22px 26px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:25px;background:var(--warm)}.gas-alert strong{font-size:13px}.gas-alert span{color:var(--muted);font-size:12px;line-height:1.6}.gas-alert a{color:var(--red);font-size:12px;font-weight:800}
.calculator-banner{overflow:hidden;padding:110px 0;color:#fff;background:#a61918}.calculator-banner__grid{display:grid;grid-template-columns:1fr .9fr;align-items:center;gap:90px}.calculator-banner h2{max-width:620px}.calculator-banner p{max-width:630px;color:#f5d8d7}.calculator-banner__visual{position:relative;min-height:390px}.flow-display{position:absolute;z-index:2;left:50%;top:50%;width:260px;height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:50%;color:#242729;background:#fff;transform:translate(-50%,-50%);box-shadow:0 30px 70px rgba(65,6,6,.25)}.flow-display span{color:#767c80;font-size:10px;text-transform:uppercase;letter-spacing:.1em}.flow-display strong{font-family:"Manrope";font-size:66px;line-height:1}.flow-display small{margin-top:7px;color:#767c80}.flow-point{position:absolute;padding:10px 14px;border:1px solid rgba(255,255,255,.25);font-size:11px;background:rgba(255,255,255,.08);backdrop-filter:blur(6px)}.flow-point--one{left:10px;top:70px}.flow-point--two{right:5px;top:60px}.flow-point--three{right:20px;bottom:45px}
.services-clean{background:#fff}.service-list{margin-top:65px;border-top:1px solid var(--line)}.service-row{display:grid;grid-template-columns:70px 1fr auto;align-items:center;gap:30px;padding:31px 0;border-bottom:1px solid var(--line)}.service-row>span{color:var(--red);font-size:11px;font-weight:800}.service-row h3{margin:0 0 6px;font-family:"Manrope";font-size:22px}.service-row p{margin:0;color:var(--muted);font-size:13px}.service-row a{color:var(--red);font-size:12px;font-weight:700}.why-arkibom{padding:110px 0;background:var(--warm)}.why-arkibom__grid{display:grid;grid-template-columns:.9fr 1.1fr;align-items:center;gap:100px}.why-arkibom__facts{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:#d8d4ce;border:1px solid #d8d4ce}.why-arkibom__facts div{min-height:175px;padding:32px;background:#fff}.why-arkibom__facts strong,.why-arkibom__facts span{display:block}.why-arkibom__facts strong{font-family:"Manrope";font-size:22px}.why-arkibom__facts span{margin-top:10px;color:var(--muted);font-size:12px}
.faq-section{background:#fff}.faq-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:100px}.accordion{border-top:1px solid var(--line)}.accordion__item{border-bottom:1px solid var(--line)}.accordion__item button{width:100%;min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px;padding:0;border:0;background:transparent;color:var(--ink);text-align:left;font-size:14px;font-weight:700}.accordion__item button span{color:var(--red);font-size:23px;transition:transform .25s}.accordion__item.is-open button span{transform:rotate(45deg)}.accordion__content{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s}.accordion__content p{overflow:hidden;margin:0;color:var(--muted);font-size:13px;line-height:1.75}.accordion__item.is-open .accordion__content{grid-template-rows:1fr}.accordion__item.is-open .accordion__content p{padding:0 35px 25px 0}
.contact-clean{padding:110px 0;background:var(--warm)}.contact-clean__grid{display:grid;grid-template-columns:.85fr 1.15fr;align-items:center;gap:100px}.contact-clean__details{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:35px}.contact-clean__details a,.contact-clean__details div{padding-top:15px;border-top:1px solid #d6d2cc}.contact-clean__details small,.contact-clean__details strong{display:block}.contact-clean__details small{color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.1em}.contact-clean__details strong{margin-top:7px;font-size:13px}.contact-form{padding:36px;background:#fff;box-shadow:0 22px 60px rgba(35,31,27,.08)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.contact-form label{display:flex;flex-direction:column;gap:8px;margin-bottom:15px;color:#3e4447;font-size:11px;font-weight:700}.contact-form input,.contact-form select,.contact-form textarea,.sizing-card select{width:100%;padding:14px;border:1px solid #d8d6d2;border-radius:3px;color:var(--ink);background:#fff;outline:none}.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus,.sizing-card select:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(183,25,24,.08)}.contact-form small{display:block;margin-top:11px;color:#8b9093;text-align:center;font-size:9px}
.footer{padding:72px 0 25px;color:#b8bbbd;background:#242628}.footer__grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:60px}.brand--footer .brand__text strong{color:#fff}.footer__grid>div{display:flex;flex-direction:column;gap:11px;font-size:12px}.footer__grid>div:first-child p{max-width:320px;color:#a8acad;line-height:1.7}.footer__grid>div>strong{margin-bottom:8px;color:#fff;font-size:11px;text-transform:uppercase;letter-spacing:.1em}.footer__bottom{margin-top:50px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;gap:25px;font-size:9px}.whatsapp-float{position:fixed;z-index:60;right:22px;bottom:22px;width:58px;height:58px;display:grid;place-items:center;border-radius:50%;color:#fff;background:var(--green);box-shadow:0 13px 30px rgba(33,180,91,.32)}.whatsapp-float svg{width:30px;height:30px}.whatsapp-float:hover{transform:translateY(-3px)}
/* Products page */
.products-page{background:#fff}.products-page .header,.calculator-page .header,.product-page .header{position:sticky}.calculator-header__inner{height:82px}.calculator-mobile-back{display:none}.products-hero{padding:92px 0 76px;background:var(--warm)}.products-hero__grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:80px}.products-intro h1{max-width:760px;margin:16px 0 20px;font-family:"Manrope";font-size:clamp(45px,5.1vw,69px);line-height:1.03;letter-spacing:-.05em}.products-intro>p{max-width:650px;color:var(--muted);font-size:16px;line-height:1.75}.products-intro__actions{display:flex;gap:12px;margin-top:28px}.products-intro__stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:42px;padding-top:25px;border-top:1px solid #d9d5cf}.products-intro__stats strong,.products-intro__stats span{display:block}.products-intro__stats strong{font-family:"Manrope";font-size:20px}.products-intro__stats span{margin-top:5px;color:var(--muted);font-size:10px}.products-hero__visual{position:relative;min-height:440px}.products-hero__product{position:absolute;padding:20px;background:#fff;box-shadow:var(--shadow)}.products-hero__product img{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 18px 18px rgba(0,0,0,.13))}.products-hero__product span{position:absolute;top:14px;left:15px;color:#72777a;font-size:9px;font-weight:800;text-transform:uppercase;letter-spacing:.1em}.products-hero__product--one{z-index:2;width:250px;height:340px;left:20px;top:20px}.products-hero__product--two{z-index:3;width:235px;height:310px;right:0;bottom:0}.catalog-assurance{padding:24px 0;border-block:1px solid var(--line)}.catalog-assurance__inner{display:flex;align-items:center;justify-content:center;gap:18px}.catalog-assurance span,.catalog-assurance p{color:var(--muted);font-size:11px}.catalog-assurance strong{font-family:"Manrope";letter-spacing:.08em}.catalog-assurance strong:nth-of-type(2){color:#d71920}.catalog-assurance i{font-style:normal;color:#aaa}.catalog-brand-section{padding:100px 0}.catalog-rinnai{background:var(--warm)}.catalog-brand-nav{display:flex;gap:12px;margin-bottom:60px}.catalog-brand-nav a{min-width:180px;padding:15px 18px;border:1px solid var(--line);background:#fff}.catalog-brand-nav a.is-active{border-color:var(--red)}.catalog-brand-nav small,.catalog-brand-nav strong,.catalog-brand-nav span{display:block}.catalog-brand-nav small{color:var(--red);font-size:8px;text-transform:uppercase;letter-spacing:.12em}.catalog-brand-nav strong{margin:5px 0 3px;font-family:"Manrope"}.catalog-brand-nav span{color:var(--muted);font-size:9px}.section-heading{display:grid;grid-template-columns:1fr .75fr;align-items:end;gap:80px;margin-bottom:38px}.section-heading h2{margin:14px 0 0;font-family:"Manrope";font-size:clamp(35px,4vw,52px);line-height:1.08;letter-spacing:-.04em}.section-heading>p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}.eyebrow--dark{color:var(--red)}.catalog-summary{display:flex;align-items:center;gap:25px;margin-bottom:28px;padding:20px 24px;background:var(--warm)}.catalog-rinnai .catalog-summary{background:#fff}.catalog-summary div{min-width:130px}.catalog-summary strong,.catalog-summary span{display:block}.catalog-summary strong{font-family:"Manrope";font-size:29px}.catalog-summary span{color:var(--muted);font-size:10px}.catalog-summary p{margin:0;color:var(--muted);font-size:11px;line-height:1.6}.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}.filter{padding:10px 15px;border:1px solid #d8d5d1;border-radius:3px;color:#5f666a;background:#fff;font-size:10px;font-weight:700;cursor:pointer}.filter.is-active,.filter:hover{border-color:var(--red);color:#fff;background:var(--red)}.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.product-card{display:flex;flex-direction:column;overflow:hidden;min-height:570px;border:1px solid var(--line);background:#fff;transition:transform .25s,box-shadow .25s}.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.product-card.is-hidden{display:none}.product-card__media{position:relative;height:285px;padding:38px;background:#f3f1ed}.product-card__media::after{content:"";position:absolute;inset:24px;background:#fff;box-shadow:0 7px 25px rgba(20,18,16,.045)}.product-card__media img{position:relative;z-index:2;width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 15px 14px rgba(0,0,0,.12))}.product-card__badge{position:absolute;z-index:4;top:14px;left:14px;padding:7px 9px;color:#fff;background:var(--red);font-size:8px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}.product-card__badge--rinnai{background:#202325}.product-card__body{flex:1;display:flex;flex-direction:column;padding:25px}.product-card__meta{display:flex;justify-content:space-between;color:var(--red);font-size:9px;font-weight:800;text-transform:uppercase;letter-spacing:.09em}.product-card__meta span:last-child{color:#818689}.product-card h3{margin:11px 0 10px;font-family:"Manrope";font-size:23px}.product-card p{min-height:68px;margin:0;color:var(--muted);font-size:12px;line-height:1.7}.spec-list{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:19px 0}.spec-list li{padding:6px 8px;color:#60676a;background:#f4f2ee;font-size:9px;font-weight:700}.product-card__footer{margin-top:auto;padding-top:17px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:14px}.product-card__footer strong{font-size:10px}.link-button{color:var(--red);font-size:11px;font-weight:800}.catalog-note{padding:26px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:11px;line-height:1.7}
/* Calculator */
.calculator-page{background:#fff}.calculator-main{padding:90px 0 110px;background:var(--warm)}.calculator-main__glow{display:none}.calculator-intro{max-width:800px;margin:0 auto 55px;text-align:center}.calculator-intro h1{margin:16px 0 18px;font-family:"Manrope";font-size:clamp(43px,5.2vw,68px);line-height:1.04;letter-spacing:-.05em}.calculator-intro p{color:var(--muted);font-size:15px;line-height:1.75}.sizing-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:80px}.calculator-sizing-grid{align-items:center;padding:50px;background:#fff;box-shadow:var(--shadow)}.sizing-copy h2{margin:14px 0 16px;font-family:"Manrope";font-size:37px}.sizing-copy>p{color:var(--muted);font-size:14px;line-height:1.75}.calculator-steps{display:grid;gap:0;margin-top:28px;border-top:1px solid var(--line)}.calculator-steps div{display:grid;grid-template-columns:40px 1fr;align-items:center;gap:13px;padding:15px 0;border-bottom:1px solid var(--line)}.calculator-steps strong{color:var(--red)}.calculator-steps span{font-size:12px}.sizing-tip{display:flex;gap:13px;margin-top:24px;padding:17px;background:var(--warm)}.sizing-tip svg{width:24px;min-width:24px;fill:none;stroke:var(--red);stroke-width:1.7}.sizing-tip span{color:var(--muted);font-size:10px;line-height:1.6}.sizing-card{display:grid;grid-template-columns:1fr 1fr;gap:15px;padding:30px;border:1px solid var(--line);background:#fff}.sizing-card__heading{grid-column:1/-1;margin-bottom:5px}.sizing-card__heading span,.sizing-card__heading strong{display:block}.sizing-card__heading span{color:var(--red);font-size:9px;font-weight:800;text-transform:uppercase;letter-spacing:.1em}.sizing-card__heading strong{margin-top:5px;font-family:"Manrope";font-size:24px}.sizing-card__field{display:flex;flex-direction:column;gap:8px}.sizing-card__field:nth-child(4),.sizing-result,.sizing-card .button{grid-column:1/-1}.sizing-card label{font-size:11px;font-weight:700}.stepper{height:50px;display:grid;grid-template-columns:46px 1fr 46px;border:1px solid #d8d6d2}.stepper button{border:0;color:var(--red);background:#f4f2ee;font-size:22px}.stepper input{width:100%;border:0;text-align:center;font-weight:800}.sizing-result{padding:22px;color:#fff;background:#25282a}.sizing-result small,.sizing-result strong,.sizing-result span{display:block}.sizing-result small{color:#b8bcbe;font-size:9px;text-transform:uppercase;letter-spacing:.1em}.sizing-result strong{margin:7px 0;font-family:"Manrope";font-size:30px}.sizing-result span{color:#d5d7d8;font-size:11px}.calculator-note{padding:70px 0}.calculator-note__inner{display:grid;grid-template-columns:1fr 1fr;gap:80px}.calculator-note h2{margin:13px 0 0;font-family:"Manrope";font-size:35px}.calculator-note p{color:var(--muted);line-height:1.75}.footer--calculator{padding-top:40px}.calculator-footer__inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
/* Product detail pages */
.product-page{background:#fff}.detail-header .header__inner{height:82px}.detail-back{padding:11px 15px;border:1px solid #d0ceca;color:#404548;font-size:11px;font-weight:700}.product-detail-main{background:#fff}.product-detail-hero{padding:45px 0 95px;background:var(--warm)}.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:30px;color:#777e82;font-size:10px}.product-detail-grid{display:grid;grid-template-columns:.9fr 1.1fr;align-items:center;gap:85px}.product-detail-media{position:relative;min-height:560px;padding:55px 45px 25px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#fff;box-shadow:var(--shadow)}.product-detail-media img{width:100%;height:430px;object-fit:contain;filter:drop-shadow(0 23px 20px rgba(0,0,0,.13))}.product-detail-media small{margin-top:14px;color:#8a8f92;text-align:center;font-size:8px;line-height:1.5}.product-detail-line{position:absolute;top:18px;left:18px;padding:7px 9px;color:#fff;background:var(--red);font-size:8px;font-weight:800;text-transform:uppercase;letter-spacing:.1em}.product-detail-line--rinnai{background:#202325}.product-detail-copy h1{margin:14px 0 17px;font-family:"Manrope";font-size:clamp(45px,5vw,66px);line-height:1.03;letter-spacing:-.05em}.product-lead{color:var(--muted);font-size:15px;line-height:1.8}.product-detail-badges{display:flex;flex-wrap:wrap;gap:7px;margin:24px 0}.product-detail-badges span{padding:8px 10px;background:#fff;color:#5d6468;font-size:10px;font-weight:700}.price-consult{margin:22px 0;padding:22px;border-left:3px solid var(--red);background:#fff}.price-consult small,.price-consult strong{display:block}.price-consult small{color:#777e82;font-size:9px;text-transform:uppercase;letter-spacing:.1em}.price-consult strong{margin:6px 0;color:var(--red);font-family:"Manrope";font-size:27px}.price-consult p{margin:0;color:var(--muted);font-size:10px;line-height:1.6}.detail-actions{display:flex;flex-wrap:wrap;gap:12px}.button--outline{color:#252a2d}.details-section{padding:92px 0}.details-section--warm{background:var(--warm)}.detail-section-heading{max-width:730px;margin-bottom:38px}.detail-section-heading h2,.details-two-columns h2{margin:13px 0;font-family:"Manrope";font-size:40px}.detail-section-heading p{color:var(--muted);line-height:1.75}.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.spec-card{min-height:145px;padding:24px;background:#fff}.spec-card span,.spec-card strong{display:block}.spec-card span{color:var(--red);font-size:8px;text-transform:uppercase;letter-spacing:.1em;font-weight:800}.spec-card strong{margin-top:12px;font-size:13px;line-height:1.55}.details-two-columns{display:grid;grid-template-columns:1.05fr .95fr;gap:90px}.feature-checks{list-style:none;padding:0;margin:25px 0}.feature-checks li{padding:13px 0;border-bottom:1px solid #d8d5d0;color:#4f5659;font-size:12px}.feature-checks li::before{content:"✓";margin-right:12px;color:var(--red);font-weight:800}.technical-note{padding:32px;background:#fff}.technical-note strong{font-family:"Manrope";font-size:20px}.technical-note p{color:var(--muted);font-size:11px;line-height:1.7}.technical-note a{color:var(--red);font-size:11px;font-weight:800}.detail-footer{padding-top:25px}
/* motion */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1);transition-delay:var(--reveal-delay,0ms)}.reveal[data-reveal="left"]{transform:translateX(-35px)}.reveal[data-reveal="right"]{transform:translateX(35px)}.reveal[data-reveal="scale"]{transform:translateY(25px) scale(.975)}.reveal.is-visible{opacity:1;transform:none}.clean-hero__card--komeco{animation:floatA 6s ease-in-out infinite}.clean-hero__card--rinnai{animation:floatB 7s ease-in-out infinite}@keyframes floatA{50%{transform:translateY(-10px)}}@keyframes floatB{50%{transform:translateY(10px)}}
@media(max-width:1050px){.nav{gap:18px}.clean-hero__grid,.products-hero__grid{grid-template-columns:1fr 1fr;gap:35px}.clean-hero h1{font-size:57px}.benefit-grid{grid-template-columns:1fr 1fr}.featured-products__grid,.why-arkibom__grid,.contact-clean__grid{gap:55px}.products-grid{grid-template-columns:1fr 1fr}.spec-grid{grid-template-columns:1fr 1fr}}
@media(max-width:820px){:root{--container:min(100% - 28px,680px)}.topbar__inner>span,.topbar__links span{display:none}.topbar__inner{justify-content:center}.header__inner{height:72px}.menu-toggle{display:block}.nav{position:fixed;inset:110px 0 0;padding:28px;display:flex;flex-direction:column;align-items:stretch;gap:0;background:#fff;transform:translateX(100%);transition:transform .28s}.nav a{padding:17px 0;border-bottom:1px solid var(--line);font-size:16px}.nav__cta{margin-top:18px;text-align:center}.menu-open .nav{transform:none}.menu-open .menu-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}.menu-open .menu-toggle span:nth-child(2){opacity:0}.menu-open .menu-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.clean-hero{background:var(--warm)}.clean-hero__grid,.products-hero__grid,.split-intro,.featured-products__grid,.calculator-banner__grid,.why-arkibom__grid,.faq-grid,.contact-clean__grid,.sizing-grid,.product-detail-grid,.details-two-columns,.calculator-note__inner{grid-template-columns:1fr}.clean-hero__grid{padding-top:55px}.clean-hero h1{font-size:clamp(43px,12vw,62px)}.clean-hero__visual{min-height:510px}.clean-hero__circle{left:50%;right:auto;transform:translateX(-50%)}.clean-hero__card--komeco{left:5%;right:auto}.clean-hero__card--rinnai{right:4%}.hero__proof{grid-template-columns:1fr}.hero-scroll-hint{display:none}.brand-assurance__inner{flex-direction:column;text-align:center}.section{padding:80px 0}.split-intro{gap:25px}.benefit-grid{margin-top:42px}.featured-products__grid{gap:35px}.featured-products__image{min-height:480px}.gas-alert{grid-template-columns:1fr}.calculator-banner__grid{gap:30px}.service-row{grid-template-columns:45px 1fr}.service-row>a{grid-column:2}.why-arkibom__grid,.faq-grid,.contact-clean__grid{gap:45px}.products-hero__visual{min-height:440px}.section-heading{grid-template-columns:1fr;gap:18px}.catalog-assurance__inner{flex-wrap:wrap}.catalog-assurance p{width:100%;text-align:center}.calculator-sizing-grid{padding:28px}.product-detail-grid{gap:35px}.product-detail-media{min-height:480px}.footer__grid{grid-template-columns:1fr 1fr}.calculator-footer__inner{flex-wrap:wrap}.calculator-mobile-back{display:inline-flex;margin-bottom:25px;color:var(--red);font-size:11px;font-weight:700}}
@media(max-width:560px){.brand__text strong{font-size:21px}.clean-hero__grid{min-height:auto}.clean-hero__visual{min-height:440px}.clean-hero__circle{width:330px;height:330px}.clean-hero__card--komeco{width:210px;height:290px;top:50px}.clean-hero__card--rinnai{width:190px;height:255px;top:155px}.clean-hero__note{right:70px;bottom:10px}.hero__actions,.products-intro__actions{flex-direction:column}.hero__actions .button,.products-intro__actions .button{width:100%}.benefit-grid,.gas-cards,.why-arkibom__facts,.products-grid,.spec-grid,.contact-clean__details,.form-row{grid-template-columns:1fr}.featured-products__image{min-height:400px}.featured-products__image img{width:280px;height:350px;left:25px}.featured-products__image-bg{inset:30px 20px 10px 0}.floating-label{right:0;bottom:15px}.service-row{grid-template-columns:34px 1fr;gap:12px}.products-hero{padding-top:58px}.products-hero__visual{min-height:360px}.products-hero__product--one{width:190px;height:270px;left:0}.products-hero__product--two{width:180px;height:245px}.products-intro__stats{display:grid;grid-template-columns:1fr 1fr}.catalog-brand-nav{overflow-x:auto}.product-card{min-height:540px}.product-card__media{height:270px}.sizing-card{grid-template-columns:1fr}.sizing-card__field,.sizing-card__field:nth-child(4){grid-column:1}.product-detail-media img{height:350px}.footer__grid{grid-template-columns:1fr}.footer__bottom{flex-direction:column}.calculator-footer__inner{flex-direction:column;align-items:flex-start}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}.reveal{opacity:1;transform:none;transition:none}.clean-hero__card{animation:none}}


/* Catálogo exclusivamente Komeco + identificação das quatro marcas autorizadas */
.brand-assurance__logos--four{flex-wrap:wrap;justify-content:center;gap:12px 18px}
.brand-assurance__logos--four strong:last-child{color:var(--red)}
.authorized-brand-list{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:10px 16px}
.authorized-brand-list strong{position:relative;font-family:"Manrope";font-size:15px;letter-spacing:.08em}
.authorized-brand-list strong:not(:last-child)::after{content:"•";position:absolute;right:-12px;color:#b9b9b9}
.authorized-brand-list strong:last-child{color:var(--red)}
.catalog-brand-note{display:flex;align-items:center;gap:16px;padding:17px 22px;border:1px solid var(--line);background:#fff}
.catalog-brand-note small{color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.1em}
.catalog-brand-note strong{font-family:"Manrope";font-size:20px}
.catalog-brand-note span{margin-left:auto;color:var(--red);font-size:12px;font-weight:700}
@media(max-width:820px){.catalog-brand-note{flex-wrap:wrap}.catalog-brand-note span{width:100%;margin-left:0}.brand-assurance__logos--four{gap:10px 16px}}

/* Instalação e conversão de fogão e cooktop */
.cooktop-service{position:relative;overflow:hidden;padding:118px 0;color:#fff;background:linear-gradient(128deg,#8f1111 0%,#b71918 52%,#d92a22 100%)}
.cooktop-service::before{content:"";position:absolute;width:540px;height:540px;right:-190px;top:-210px;border:1px solid rgba(255,255,255,.16);border-radius:50%}
.cooktop-service::after{content:"";position:absolute;width:330px;height:330px;left:-190px;bottom:-220px;border:75px solid rgba(255,255,255,.045);border-radius:50%}
.cooktop-service__grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:90px}
.cooktop-service__content h2{max-width:690px;margin:15px 0 20px;font-family:"Manrope";font-size:clamp(38px,4.7vw,62px);line-height:1.04;letter-spacing:-.04em}
.cooktop-service__content>p{max-width:690px;margin:0;color:#f9dddd;font-size:15px;line-height:1.8}
.cooktop-service__content>p strong{color:#fff}
.cooktop-service__cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:34px}
.cooktop-service__cards article{display:grid;grid-template-columns:35px 1fr;gap:14px;min-height:175px;padding:25px;border:1px solid rgba(255,255,255,.22);background:rgba(104,8,8,.18);backdrop-filter:blur(7px)}
.cooktop-service__number{padding-top:4px;color:#ffd3d1;font-size:10px;font-weight:800}
.cooktop-service__cards h3{margin:0 0 9px;font-family:"Manrope";font-size:18px}
.cooktop-service__cards p{margin:0;color:#f7d4d2;font-size:12px;line-height:1.7}
.cooktop-service__notice{display:flex;align-items:flex-start;gap:13px;margin-top:18px;padding:16px 18px;border-left:3px solid #fff;background:rgba(75,5,5,.23)}
.cooktop-service__notice svg{flex:0 0 22px;width:22px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.cooktop-service__notice p{margin:0;color:#f8dedd;font-size:11px;line-height:1.65}
.cooktop-service__notice strong{color:#fff}
.cooktop-service__actions{display:flex;align-items:center;gap:19px;margin-top:25px}
.cooktop-service__actions span{max-width:250px;color:#f6d3d1;font-size:10px;line-height:1.5}
.cooktop-service__visual{position:relative;min-height:520px}
.cooktop-illustration{position:absolute;inset:30px 0 70px 15px;perspective:900px}
.cooktop-illustration__surface{position:absolute;inset:45px 15px 70px 0;border:1px solid rgba(255,255,255,.35);border-radius:22px;background:linear-gradient(145deg,#f9f7f3,#c7c7c7);box-shadow:0 38px 70px rgba(69,2,2,.35);transform:rotateX(57deg) rotateZ(-8deg);transform-style:preserve-3d}
.cooktop-illustration__surface::before{content:"";position:absolute;inset:14px;border:1px solid rgba(40,40,40,.13);border-radius:14px}
.burner{position:absolute;width:118px;height:118px;border:8px solid #252729;border-radius:50%;box-shadow:inset 0 0 0 8px #aeb0b0,0 5px 0 #151617;transform:translateZ(10px)}
.burner::before,.burner::after{content:"";position:absolute;left:50%;top:50%;width:142px;height:9px;border-radius:10px;background:#26282a;transform:translate(-50%,-50%)}
.burner::after{transform:translate(-50%,-50%) rotate(90deg)}
.burner i{position:absolute;z-index:2;inset:21px;border:5px dotted #767878;border-radius:50%;background:#202224}
.burner span{position:absolute;z-index:3;inset:39px;border-radius:50%;background:#353739;box-shadow:inset 0 3px 4px rgba(255,255,255,.12)}
.burner--one{left:45px;top:38px}.burner--two{right:49px;top:38px}.burner--three{left:65px;bottom:40px;transform:translateZ(10px) scale(.82)}.burner--four{right:68px;bottom:40px;transform:translateZ(10px) scale(.82)}
.cooktop-illustration__controls{position:absolute;left:50%;bottom:20px;display:flex;gap:11px;transform:translateX(-50%) translateZ(13px)}
.cooktop-illustration__controls b{width:25px;height:25px;border:5px solid #4a4b4d;border-radius:50%;background:#222}
.gas-switch{position:absolute;right:-5px;bottom:6px;min-width:205px;padding:19px 22px;border-left:4px solid #ef3430;color:#26292b;background:#fff;box-shadow:0 22px 45px rgba(63,2,2,.3)}
.gas-switch span,.gas-switch small{display:block;color:#777d80;font-size:9px;text-transform:uppercase;letter-spacing:.1em}
.gas-switch strong{display:block;margin:6px 0 4px;font-family:"Manrope";font-size:24px}
.gas-switch strong i{padding:0 5px;color:var(--red);font-style:normal}
.cooktop-service__checks{position:absolute;left:0;bottom:0;display:flex;flex-wrap:wrap;gap:8px}
.cooktop-service__checks span{padding:9px 11px;border:1px solid rgba(255,255,255,.27);color:#fff;background:rgba(89,5,5,.18);font-size:9px;font-weight:700}
@media(max-width:1050px){.cooktop-service__grid{gap:45px}.cooktop-service__visual{min-height:470px}.burner{width:105px;height:105px}.burner::before,.burner::after{width:128px}}
@media(max-width:820px){.cooktop-service{padding:90px 0}.cooktop-service__grid{grid-template-columns:1fr}.cooktop-service__visual{min-height:500px;max-width:570px;width:100%;margin:0 auto}.cooktop-service__cards{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.cooktop-service__cards{grid-template-columns:1fr}.cooktop-service__cards article{min-height:auto}.cooktop-service__actions{align-items:flex-start;flex-direction:column}.cooktop-service__visual{min-height:410px}.cooktop-illustration{inset:18px 0 48px}.cooktop-illustration__surface{inset:35px 0 65px -20px}.burner{width:84px;height:84px;border-width:6px}.burner::before,.burner::after{width:102px;height:7px}.burner i{inset:15px}.burner span{inset:28px}.burner--one{left:28px}.burner--two{right:30px}.burner--three{left:40px}.burner--four{right:42px}.gas-switch{right:0;min-width:180px}.cooktop-service__checks{gap:5px}.cooktop-service__checks span{padding:7px 8px;font-size:8px}}