:root {
  --primary: #168fa5;
  --primary-dark: #08738d;
  --primary-deep: #073d55;
  --primary-ink: #062f41;
  --accent: #ef522b;
  --accent-dark: #d83f1d;
  --whatsapp: #159b59;
  --ink: #102d3a;
  --muted: #617580;
  --line: #dbe7ea;
  --surface: #f3f8f9;
  --white: #fff;
  --shadow-sm: 0 10px 30px rgba(7, 61, 85, .07);
  --shadow-md: 0 22px 60px rgba(7, 61, 85, .13);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 30px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
button, input { font: inherit; }
svg { fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.svg-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.section { padding: 108px 0; }

.skip-link { position: fixed; top: -100px; left: 20px; z-index: 999; padding: 10px 16px; color: white; background: var(--primary-deep); border-radius: 8px; }
.skip-link:focus { top: 12px; }

.site-header { position: sticky; top: 0; z-index: 100; height: 76px; background: rgba(255,255,255,.92); border-bottom: 1px solid rgba(219,231,234,.85); backdrop-filter: blur(18px); }
.nav-wrap { display: flex; height: 100%; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand-image { display: block; width: 166px; height: 52px; overflow: hidden; }
.brand-image img { width: 100%; height: 100%; object-fit: contain; }
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav > a { padding: 10px 14px; color: #34515d; font-size: .92rem; font-weight: 650; border-radius: 10px; transition: color .2s, background .2s, transform .2s; }
.main-nav > a:hover { color: var(--primary-dark); background: var(--surface); }
.main-nav .nav-cta { margin-left: 10px; padding: 11px 20px; color: white; background: var(--accent); box-shadow: 0 8px 20px rgba(239,82,43,.2); }
.main-nav .nav-cta:hover { color: white; background: var(--accent-dark); transform: translateY(-1px); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 11px; background: transparent; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; }
.menu-toggle span { display: block; width: 100%; height: 2px; margin: 5px 0; background: var(--ink); transition: transform .2s, opacity .2s; }

.hero { position: relative; min-height: 690px; padding: 90px 0 88px; overflow: hidden; background: linear-gradient(130deg, #f8fbfb 0%, #fff 55%, #eef7f8 100%); }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .45; background-image: linear-gradient(rgba(22,143,165,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(22,143,165,.06) 1px, transparent 1px); background-size: 44px 44px; mask-image: linear-gradient(to right, transparent, black 80%); }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(10px); pointer-events: none; }
.hero-glow-one { width: 420px; height: 420px; right: -220px; top: -150px; background: rgba(22,143,165,.1); }
.hero-glow-two { width: 250px; height: 250px; left: -170px; bottom: -80px; background: rgba(239,82,43,.06); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 70px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 18px; color: var(--primary-dark); font-size: .76rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.eyebrow > span { width: 26px; height: 2px; background: var(--accent); }
.eyebrow-light { color: #a7e5ec; }
.hero h1 { max-width: 670px; margin: 0; color: var(--primary-ink); font-size: clamp(2.7rem, 5vw, 4.65rem); line-height: 1.06; letter-spacing: -.052em; }
.hero h1 em { color: var(--primary); font-style: normal; }
.hero-lead { max-width: 620px; margin: 26px 0 0; color: var(--muted); font-size: clamp(1rem, 1.7vw, 1.15rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; min-height: 52px; padding: 13px 21px; align-items: center; justify-content: center; gap: 9px; border: 1px solid transparent; border-radius: 12px; font-size: .94rem; font-weight: 750; transition: transform .2s, box-shadow .2s, background .2s, border-color .2s; }
.button svg { width: 21px; height: 21px; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: var(--accent); box-shadow: 0 12px 26px rgba(239,82,43,.22); }
.button-primary:hover { background: var(--accent-dark); box-shadow: 0 14px 30px rgba(239,82,43,.28); }
.button-whatsapp { color: #17663f; background: white; border-color: #cde3d8; box-shadow: var(--shadow-sm); }
.button-whatsapp svg { color: var(--whatsapp); }
.button-whatsapp:hover { border-color: #8dcbb0; }
.hero-points { display: flex; flex-wrap: wrap; gap: 20px; margin: 27px 0 0; padding: 0; color: #526a75; list-style: none; font-size: .84rem; font-weight: 650; }
.hero-points li { display: flex; align-items: center; gap: 6px; }
.hero-points svg { width: 17px; height: 17px; padding: 2px; color: white; background: var(--primary); border-radius: 50%; stroke-width: 2.8; }
.visual-frame { position: relative; padding: 10px; background: white; border: 1px solid rgba(255,255,255,.8); border-radius: 28px; box-shadow: var(--shadow-md); transform: rotate(1.2deg); }
.visual-frame::before { content: ""; position: absolute; z-index: -1; inset: 55px -22px -22px 45px; background: var(--primary); border-radius: 28px; opacity: .12; }
.visual-frame > img { width: 100%; aspect-ratio: 1.5; padding: 54px 28px; object-fit: contain; object-position: center; background: linear-gradient(145deg, #f7fbfc, #eaf5f6); border-radius: 21px; }
.visual-badge { position: absolute; left: -30px; bottom: 28px; display: flex; align-items: center; gap: 12px; min-width: 225px; padding: 13px 16px; background: rgba(255,255,255,.96); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow-md); transform: rotate(-1.2deg); }
.badge-icon { display: grid; width: 42px; height: 42px; place-items: center; color: white; background: var(--primary); border-radius: 11px; }
.badge-icon svg { width: 23px; height: 23px; }
.visual-badge > span:last-child { display: flex; flex-direction: column; color: var(--muted); font-size: .75rem; line-height: 1.45; }
.visual-badge strong { color: var(--ink); font-size: .9rem; }

.section-heading { margin-bottom: 48px; }
.section-heading h2, .about-copy h2, .quote-panel h2, .cooling-copy h2 { margin: 0; color: var(--primary-ink); font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.13; letter-spacing: -.038em; }
.split-heading { display: grid; grid-template-columns: 1.1fr .7fr; align-items: end; gap: 90px; }
.split-heading > p { max-width: 470px; margin: 0 0 4px; color: var(--muted); }
.service-group { padding-top: 10px; }
.group-label { display: flex; align-items: center; gap: 13px; margin-bottom: 22px; }
.group-icon { display: grid; width: 44px; height: 44px; place-items: center; color: var(--primary); background: #e8f5f6; border-radius: 12px; }
.group-icon svg { width: 24px; height: 24px; }
.group-label div { display: flex; align-items: baseline; gap: 10px; }
.group-label span { color: var(--primary); font-size: .72rem; font-weight: 800; }
.group-label h3 { margin: 0; font-size: 1.1rem; }
.cards-grid { display: grid; gap: 20px; }
.three-columns { grid-template-columns: repeat(3, 1fr); }
.service-card { position: relative; min-height: 290px; padding: 30px; overflow: hidden; background: white; border: 1px solid var(--line); border-radius: var(--radius-md); box-shadow: 0 5px 24px rgba(7,61,85,.045); transition: transform .25s, box-shadow .25s, border-color .25s; }
.service-card::after { content: ""; position: absolute; right: -35px; bottom: -65px; width: 120px; height: 120px; background: var(--primary); border-radius: 50%; opacity: .035; transition: transform .25s; }
.service-card:hover { transform: translateY(-5px); border-color: #b9d9de; box-shadow: var(--shadow-sm); }
.service-card:hover::after { transform: scale(1.35); }
.card-icon { display: grid; width: 52px; height: 52px; margin-bottom: 23px; place-items: center; color: var(--primary); background: var(--surface); border-radius: 14px; }
.card-icon svg { width: 27px; height: 27px; }
.service-card h4 { margin: 0 0 10px; color: var(--primary-ink); font-size: 1.2rem; }
.service-card p { margin: 0; color: var(--muted); font-size: .94rem; }
.service-card a { position: absolute; bottom: 27px; color: var(--primary-dark); font-size: .84rem; font-weight: 750; }
.service-card a span { display: inline-block; margin-left: 3px; transition: transform .2s; }
.service-card a:hover span { transform: translateX(4px); }
.service-intro { padding-bottom: 50px; }
.cooling-panel.climate-panel { color: white; background: linear-gradient(135deg, #4da9c5, #91d5df); }
.climate-panel .cooling-copy h2 { color: white; }
.climate-panel .eyebrow-light { color: #d9f9fb; }
.climate-panel .eyebrow > span { background: #ff8a68; }
.climate-panel .cooling-copy > p:not(.eyebrow) { color: #e2f7f8; }
.climate-panel .text-link { color: white; border-color: rgba(255,255,255,.48); }
.climate-panel .cooling-list article { border-color: rgba(255,255,255,.2); }
.climate-panel .list-icon { color: white; background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.2); }
.climate-panel .cooling-list .number { color: #d3f8fa; }
.climate-panel .cooling-list p { color: #dcf2f4; }

.cooling-section { padding-top: 8px; }
.cooling-panel { display: grid; grid-template-columns: .84fr 1.16fr; gap: 78px; padding: 68px; color: white; background: linear-gradient(135deg, var(--primary-ink), #075f76); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.cooling-copy { align-self: center; }
.cooling-copy h2 { color: white; }
.cooling-copy > p:not(.eyebrow) { margin: 20px 0 28px; color: #c2dbe1; }
.text-link { color: white; font-size: .9rem; font-weight: 750; border-bottom: 1px solid rgba(255,255,255,.4); }
.text-link span { margin-left: 5px; }
.cooling-list { display: grid; }
.cooling-list article { position: relative; display: grid; grid-template-columns: 32px 50px 1fr; gap: 16px; align-items: center; padding: 21px 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.cooling-list article:first-child { padding-top: 0; }
.cooling-list article:last-child { padding-bottom: 0; border: 0; }
.cooling-list .number { align-self: start; padding-top: 6px; color: #68c6d3; font-size: .7rem; font-weight: 800; }
.list-icon { display: grid; width: 48px; height: 48px; place-items: center; color: #a7e5ec; background: rgba(255,255,255,.09); border: 1px solid rgba(255,255,255,.1); border-radius: 12px; }
.list-icon svg { width: 24px; height: 24px; }
.cooling-list h3 { margin: 0 0 3px; font-size: 1.05rem; }
.cooling-list p { margin: 0; color: #b8d0d6; font-size: .86rem; }
.heating-section { padding-top: 0; padding-bottom: 50px; }
.heating-panel { background: linear-gradient(135deg, #702719, var(--accent-dark)); }
.heating-panel .eyebrow-light { color: #ffd2c5; }
.heating-panel .eyebrow > span { background: #ffb199; }
.heating-panel .cooling-copy > p:not(.eyebrow) { color: #f3d5cd; }
.heating-panel .list-icon { color: #ffd2c5; }
.heating-panel .cooling-list .number { color: #ffc0ae; }
.heating-panel .cooling-list p { color: #efd0c7; }
.heating-list { grid-template-columns: 1fr 1fr; column-gap: 25px; }
.heating-list article { grid-template-columns: 25px 45px 1fr; gap: 11px; }
.heating-list article:first-child { padding-top: 21px; }
.heating-list article:nth-last-child(-n+2) { border-bottom: 0; }
.heating-list .list-icon { width: 44px; height: 44px; }

.about-section { background: var(--surface); }
.about-grid { display: grid; grid-template-columns: .88fr 1.12fr; align-items: center; gap: 90px; }
.about-visual { position: relative; display: grid; min-height: 430px; place-items: center; background: radial-gradient(circle, white 0, #e6f2f4 49%, transparent 50%); }
.brand-symbol { display: grid; width: 150px; height: 150px; place-items: center; color: white; background: linear-gradient(145deg, var(--primary), var(--primary-dark)); border: 10px solid white; border-radius: 42% 58% 54% 46% / 48% 44% 56% 52%; box-shadow: var(--shadow-md); }
.brand-symbol svg { width: 76px; height: 76px; stroke-width: 1.35; }
.thermal-card { position: absolute; display: flex; width: 155px; height: 112px; align-items: center; justify-content: center; gap: 8px; background: white; border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow-sm); font-weight: 750; }
.thermal-card svg { width: 27px; height: 27px; }
.thermal-cold { left: 3%; top: 12%; color: #087eaa; transform: rotate(-4deg); }
.thermal-warm { right: 2%; bottom: 10%; color: var(--accent); transform: rotate(4deg); }
.about-copy > p:not(.eyebrow) { max-width: 650px; margin: 21px 0 0; color: var(--muted); }
.values-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 32px; }
.values-grid > div { display: flex; align-items: center; gap: 10px; padding: 15px; background: white; border: 1px solid var(--line); border-radius: 12px; }
.values-grid svg { width: 23px; height: 23px; padding: 4px; flex: 0 0 auto; color: white; background: var(--primary); border-radius: 50%; stroke-width: 3; }
.values-grid span { display: flex; flex-direction: column; color: var(--muted); font-size: .76rem; line-height: 1.45; }
.values-grid strong { color: var(--ink); font-size: .9rem; }

.brands-section { padding: 56px 0 64px; background: white; border-bottom: 1px solid var(--line); }
.climate-brands, .heating-brands { padding-top: 0; }
.brands-heading { display: flex; margin-bottom: 30px; align-items: end; justify-content: space-between; gap: 40px; }
.brands-heading .eyebrow { margin-bottom: 0; }
.brands-heading h2 { max-width: 560px; margin: 0; color: var(--primary-ink); font-size: clamp(1.35rem, 2.4vw, 2rem); line-height: 1.2; letter-spacing: -.025em; text-align: right; }
.brand-list { display: grid; grid-template-columns: repeat(10, 1fr); gap: 1px; margin: 0; padding: 0; overflow: hidden; background: var(--line); border: 1px solid var(--line); border-radius: 16px; list-style: none; }
.brand-list li { display: flex; min-height: 88px; padding: 14px 10px; align-items: center; justify-content: center; flex-direction: column; color: #49616d; background: var(--surface); font-size: .86rem; font-weight: 800; line-height: 1.2; text-align: center; letter-spacing: -.01em; transition: color .2s, background .2s; }
.brand-list li:hover { color: var(--primary-dark); background: white; }
.brand-list small { color: #80929a; font-size: .64rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.heating-brands .eyebrow { color: var(--accent-dark); }
.heating-brands .brand-list { grid-template-columns: repeat(4, 1fr); }
.heating-brands .brand-list li { color: #744639; background: #fff8f5; }
.heating-brands .brand-list li:hover { color: var(--accent-dark); background: white; }

.works-section { overflow: hidden; background: var(--surface); border-bottom: 1px solid var(--line); }
.works-heading h2 { margin: 0; color: var(--primary-ink); font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.13; letter-spacing: -.038em; }
.works-carousel { position: relative; }
.works-track { display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 40px) / 3); gap: 20px; overflow-x: auto; overscroll-behavior-inline: contain; scroll-behavior: smooth; scroll-snap-type: inline mandatory; scrollbar-width: none; }
.works-track::-webkit-scrollbar { display: none; }
.work-slide { min-width: 0; overflow: hidden; background: white; border: 1px solid var(--line); border-radius: 18px; scroll-snap-align: start; box-shadow: 0 8px 28px rgba(7,61,85,.055); }
.work-image { position: relative; overflow: hidden; aspect-ratio: 4 / 3; background: #dbe8ea; }
.work-image::after { content: ""; position: absolute; inset: auto 0 0; height: 35%; background: linear-gradient(transparent, rgba(6,47,65,.18)); pointer-events: none; }
.work-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.work-slide:hover .work-image img { transform: scale(1.035); }
.work-caption { padding: 18px 20px 20px; }
.work-caption span { color: var(--primary-dark); font-size: .68rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.work-caption h3 { margin: 3px 0 0; color: var(--primary-ink); font-size: 1.05rem; }
.carousel-controls { display: flex; margin-top: 24px; align-items: center; justify-content: space-between; }
.carousel-status { margin: 0; color: #8a9ba3; font-size: .78rem; font-variant-numeric: tabular-nums; }
.carousel-status strong { color: var(--primary-dark); font-size: 1rem; }
.carousel-controls > div { display: flex; gap: 9px; }
.carousel-button { display: grid; width: 45px; height: 45px; padding: 0; place-items: center; color: var(--primary-deep); background: white; border: 1px solid var(--line); border-radius: 50%; font-size: 1.15rem; cursor: pointer; transition: color .2s, background .2s, transform .2s; }
.carousel-button:hover { color: white; background: var(--primary); transform: translateY(-2px); }

.quote-section { padding-bottom: 60px; }
.quote-panel { position: relative; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 70px; padding: 58px 64px; overflow: hidden; color: white; background: var(--primary); border-radius: var(--radius-lg); }
.quote-panel::after { content: ""; position: absolute; right: -90px; top: -120px; width: 360px; height: 360px; border: 70px solid rgba(255,255,255,.07); border-radius: 50%; }
.quote-panel > * { position: relative; z-index: 1; }
.quote-panel h2 { max-width: 690px; color: white; }
.quote-panel > div:first-child > p:last-child { max-width: 650px; margin: 16px 0 0; color: #d9f1f3; }
.quote-actions { display: flex; min-width: 250px; flex-direction: column; align-items: stretch; gap: 12px; }
.button-white { color: var(--primary-deep); background: white; box-shadow: 0 14px 32px rgba(4,51,66,.18); }
.button-white svg { color: var(--whatsapp); }
.button-white:hover { background: #f5fbfb; }
.phone-link { display: flex; flex-direction: column; align-items: center; color: white; line-height: 1.4; }
.phone-link span { color: #d5edf0; font-size: .72rem; }
.phone-link strong { font-size: 1.03rem; letter-spacing: .02em; }

.contact-section { padding-top: 65px; }
.contact-layout { display: grid; grid-template-columns: .92fr 1.08fr; align-items: stretch; gap: 20px; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-card { display: flex; min-width: 0; align-items: flex-start; gap: 13px; padding: 22px 18px; background: white; border: 1px solid var(--line); border-radius: 16px; transition: transform .2s, box-shadow .2s, border-color .2s; }
.contact-active:hover { transform: translateY(-3px); border-color: #b6d8de; box-shadow: var(--shadow-sm); }
.contact-icon { display: grid; width: 42px; height: 42px; flex: 0 0 auto; place-items: center; color: var(--primary); background: var(--surface); border-radius: 11px; }
.contact-icon svg { width: 21px; height: 21px; }
.contact-card > span:last-child { display: flex; min-width: 0; flex-direction: column; }
.contact-card small { margin-bottom: 1px; color: var(--muted); font-size: .68rem; font-weight: 750; text-transform: uppercase; letter-spacing: .08em; }
.contact-card strong { overflow-wrap: anywhere; color: var(--ink); font-size: .93rem; }
.contact-card em { color: #8a9ba3; font-size: .72rem; font-style: normal; }
.contact-card .placeholder { color: #657983; font-size: .82rem; }
.map-card { min-height: 330px; overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; }
.map-heading { display: flex; height: 76px; padding: 13px 18px; align-items: center; gap: 12px; background: white; border-bottom: 1px solid var(--line); }
.map-heading > div { display: flex; flex-direction: column; }
.map-heading small { color: var(--muted); font-size: .68rem; font-weight: 750; text-transform: uppercase; letter-spacing: .08em; }
.map-heading strong { color: var(--ink); font-size: .94rem; }
.map-card iframe { display: block; width: 100%; height: calc(100% - 76px); min-height: 254px; border: 0; }

.site-footer { color: #c1d1d7; background: #062c3c; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .65fr 1fr .65fr; gap: 48px; padding-top: 60px; padding-bottom: 48px; }
.footer-logo .brand-image { width: 160px; height: 52px; }
.footer-brand p { max-width: 320px; margin: 17px 0 0; font-size: .87rem; }
.footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.footer-links h2 { margin: 0 0 8px; color: white; font-size: .85rem; }
.footer-links a { font-size: .82rem; transition: color .2s; }
.footer-links a:hover { color: white; }
.footer-links .social-link { display: flex; align-items: center; gap: 8px; }
.social-link svg { width: 17px; height: 17px; }
.footer-bottom { display: flex; padding-top: 22px; padding-bottom: 22px; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.1); font-size: .76rem; }
.footer-bottom p { margin: 0; }

.floating-whatsapp { position: fixed; z-index: 80; right: 22px; bottom: 22px; display: flex; height: 52px; padding: 0 18px; align-items: center; gap: 8px; color: white; background: var(--whatsapp); border: 2px solid white; border-radius: 999px; box-shadow: 0 14px 30px rgba(14,103,59,.28); font-size: .85rem; font-weight: 800; transition: transform .2s, background .2s; }
.floating-whatsapp:hover { transform: translateY(-3px); background: #108349; }
.floating-whatsapp svg { width: 23px; height: 23px; }

:focus-visible { outline: 3px solid rgba(239,82,43,.45); outline-offset: 3px; }

@media (max-width: 980px) {
  .section { padding: 86px 0; }
  .service-intro, .heating-section { padding-bottom: 45px; }
  .heating-section { padding-top: 0; }
  .hero { min-height: auto; padding: 68px 0 85px; }
  .hero-grid { grid-template-columns: 1fr; gap: 55px; }
  .hero-copy { max-width: 740px; }
  .hero-visual { max-width: 720px; }
  .visual-badge { left: 20px; }
  .split-heading { grid-template-columns: 1fr; gap: 18px; }
  .three-columns { grid-template-columns: 1fr 1fr; }
  .service-card:last-child { grid-column: span 2; min-height: 245px; }
  .cooling-panel { gap: 42px; padding: 50px 40px; }
  .about-grid { gap: 45px; }
  .about-visual { min-height: 380px; }
  .thermal-card { width: 135px; height: 95px; }
  .brand-list { grid-template-columns: repeat(5, 1fr); }
  .heating-brands .brand-list { grid-template-columns: repeat(4, 1fr); }
  .works-track { grid-auto-columns: calc((100% - 20px) / 2); }
  .quote-panel { grid-template-columns: 1fr; gap: 30px; }
  .quote-actions { max-width: 330px; }
  .contact-layout { grid-template-columns: 1fr; }
  .map-card { min-height: 390px; }
  .footer-grid { grid-template-columns: 1.25fr .7fr .9fr; }
  .footer-grid .footer-links:last-child { grid-column: 2; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 72px; }
  .container { width: min(calc(100% - 32px), var(--container)); }
  .site-header { height: 68px; }
  .brand-image { width: 142px; height: 46px; }
  .menu-toggle { display: block; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .main-nav { position: fixed; top: 68px; right: 0; left: 0; display: flex; padding: 18px 16px 24px; align-items: stretch; flex-direction: column; gap: 4px; background: white; border-bottom: 1px solid var(--line); box-shadow: 0 20px 35px rgba(7,61,85,.1); opacity: 0; visibility: hidden; transform: translateY(-10px); transition: opacity .2s, visibility .2s, transform .2s; }
  .main-nav.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .main-nav > a { padding: 12px 14px; }
  .main-nav .nav-cta { margin: 7px 0 0; text-align: center; }
  .hero { padding-top: 56px; }
  .hero h1 { font-size: clamp(2.55rem, 11vw, 3.65rem); }
  .hero-lead { margin-top: 20px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .hero-points { gap: 11px 17px; }
  .visual-frame { transform: none; border-radius: 22px; }
  .visual-frame > img { border-radius: 16px; }
  .visual-badge { left: 18px; bottom: -28px; transform: none; }
  .section { padding: 75px 0; }
  .service-intro, .heating-section { padding-bottom: 40px; }
  .heating-section { padding-top: 0; }
  .section-heading { margin-bottom: 34px; }
  .three-columns { grid-template-columns: 1fr; }
  .service-card, .service-card:last-child { grid-column: auto; min-height: 270px; }
  .cooling-section { padding-top: 20px; }
  .cooling-panel { grid-template-columns: 1fr; padding: 38px 25px; border-radius: 22px; }
  .cooling-list article { grid-template-columns: 25px 44px 1fr; gap: 11px; }
  .list-icon { width: 44px; height: 44px; }
  .heating-list { grid-template-columns: 1fr; }
  .heating-list article:nth-last-child(2) { border-bottom: 1px solid rgba(255,255,255,.14); }
  .heating-list article:first-child { padding-top: 0; }
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { min-height: 330px; order: 2; }
  .brand-symbol { width: 125px; height: 125px; }
  .brand-symbol svg { width: 64px; height: 64px; }
  .values-grid { grid-template-columns: 1fr; }
  .brands-heading { align-items: flex-start; flex-direction: column; gap: 12px; }
  .brands-heading h2 { max-width: none; text-align: left; }
  .brand-list { grid-template-columns: repeat(2, 1fr); }
  .heating-brands .brand-list { grid-template-columns: repeat(2, 1fr); }
  .brand-list li { min-height: 74px; }
  .works-track { grid-auto-columns: 86%; gap: 14px; }
  .work-caption { padding: 15px 16px 17px; }
  .quote-section { padding-bottom: 38px; }
  .quote-panel { padding: 38px 25px; border-radius: 22px; }
  .quote-actions { width: 100%; max-width: none; }
  .contact-section { padding-top: 50px; }
  .contact-grid { grid-template-columns: 1fr; }
  .map-card { min-height: 350px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 38px 25px; }
  .footer-brand { grid-column: span 2; }
  .footer-grid .footer-links:last-child { grid-column: auto; }
  .footer-bottom { gap: 14px; align-items: flex-start; flex-direction: column; }
  .floating-whatsapp { right: 14px; bottom: 14px; width: 52px; padding: 0; justify-content: center; }
  .floating-whatsapp span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
}

@media (max-width: 420px) {
  .container { width: min(calc(100% - 24px), var(--container)); }
  .hero h1 { font-size: 2.48rem; }
  .hero-points { align-items: flex-start; flex-direction: column; }
  .visual-frame { padding: 7px; }
  .visual-frame > img { padding: 38px 16px; }
  .visual-badge { right: 15px; left: 15px; min-width: 0; }
  .thermal-card { width: 116px; height: 82px; flex-direction: column; gap: 3px; font-size: .75rem; }
  .thermal-cold { left: 0; }
  .thermal-warm { right: 0; }
  .cooling-panel, .quote-panel { padding-right: 20px; padding-left: 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
}

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