/* Reparación de Calentadores de Gas — Diseño original, responsivo y sin dependencias de JS para el contenido. */
:root {
  --navy: #0b2338;
  --navy-deep: #071a2b;
  --navy-mid: #153954;
  --steel: #345a75;
  --orange: #f18b42;
  --orange-light: #ffb774;
  --orange-pale: #fff1e5;
  --ink: #102b40;
  --body: #596b79;
  --muted: #81919d;
  --line: #dbe4e9;
  --off-white: #f5f8fa;
  --white: #ffffff;
  --font-head: 'Outfit', 'Arial Narrow', Arial, sans-serif;
  --font-body: 'DM Sans', 'Segoe UI', Arial, sans-serif;
  --header-h: 82px;
  --container: 1216px;
  --radius: 22px;
}
*, *::before, *::after {box-sizing: border-box;}
html {scroll-behavior: smooth; scroll-padding-top: 105px;}
body {margin: 0; background: var(--white); color: var(--ink); font: 400 16px/1.65 var(--font-body); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; overflow-x: hidden;}
body.menu-open {overflow: hidden;}
::selection {background: #f6ac75; color: var(--navy);}
a {color: inherit; text-decoration: none;}
button {font: inherit;}
button, a {-webkit-tap-highlight-color: transparent;}
button:focus-visible, a:focus-visible {outline: 3px solid var(--orange); outline-offset: 4px;}
img, svg {display: block;}
img {max-width: 100%;}
.container {width: min(calc(100% - 72px), var(--container)); margin-inline: auto;}
.skip-link {position: fixed; z-index: 2000; top: -100px; left: 16px; padding: 12px 18px; background: #fff; color: var(--navy); border-radius: 8px; font-weight: 700;}
.skip-link:focus {top: 14px;}
.scroll-progress {position: fixed; left: 0; top: 0; height: 3px; width: 0%; z-index: 1500; background: var(--orange); pointer-events: none; transition: width .06s linear;}
/* Header */
.utility-bar {height: 36px; color: #bdcbd5; background: var(--navy-deep); font-size: 11px; font-weight: 700; letter-spacing: .085em; text-transform: uppercase;}
.utility-bar__inner {height: 100%; display: flex; justify-content: space-between; align-items: center; gap: 20px;}
.utility-bar__service {display: flex; align-items: center; gap: 10px;}
.utility-dot {width: 7px; height: 7px; flex: 0 0 7px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 3px #f18b4226;}
.utility-divider {margin-inline: 10px; opacity: .4;}
.site-header {position: sticky; z-index: 1200; top: 0; height: var(--header-h); background: #fff; border-bottom: 1px solid #e9eff1; transition: box-shadow .25s ease, height .25s ease;}
.site-header.is-scrolled {box-shadow: 0 9px 30px #0d243315;}
.header-inner {height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 28px;}
.brand {display: inline-flex; align-items: center; gap: 12px; min-width: 0; flex: none;}
.brand__mark {width: 49px; height: 49px; border-radius: 14px; color: #fff; background: var(--navy); display: grid; place-items: center; flex: none;}
.brand__mark svg {height: 31px; width: 31px;}
.brand__text {display: flex; flex-direction: column; color: var(--steel); font-family: var(--font-head); font-weight: 500; font-size: 11px; letter-spacing: .13em; line-height: 1.35; white-space: nowrap;}
.brand__text strong {font-size: 16px; letter-spacing: .022em; color: var(--navy); font-weight: 800;}
.main-nav {display: flex; align-items: center; gap: 28px;}
.nav-link {color: #405668; font-size: 13px; font-weight: 700; position: relative; padding: 12px 0; transition: color .2s ease;}
.nav-link::after {content: ''; position: absolute; height: 2px; left: 0; right: 100%; bottom: 5px; background: var(--orange); transition: right .25s ease;}
.nav-link:hover, .nav-link.active {color: var(--navy);}
.nav-link:hover::after, .nav-link.active:not(.nav-link--featured)::after {right: 0;}
.nav-link--featured {padding: 12px 15px 12px 18px; border-radius: 9px; color: #fff; background: var(--navy); display: inline-flex; align-items: center; gap: 10px; transition: background .2s ease, transform .2s ease;}
.nav-link--featured:hover, .nav-link--featured.active {color: #fff; background: #1c4868; transform: translateY(-1px);}
.nav-link--featured::after {display: none;}
.nav-link--featured svg, .btn svg, .footer-bottom a svg, .back-to-top svg {width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;}
.nav-toggle {display: none;}
/* Hero */
.hero {position: relative; color: #fff; background: linear-gradient(125deg, #102f49 0%, #092237 48%, #071a2b 100%); isolation: isolate; overflow: hidden;}
.hero__gridlines {position: absolute; z-index: -1; inset: 0; pointer-events: none; background-image: linear-gradient(#a1bacb0c 1px, transparent 1px), linear-gradient(90deg,#a1bacb0c 1px,transparent 1px); background-size: 74px 74px; mask-image: linear-gradient(to right,transparent 0%,#000 30%,#000 100%);}
.hero__glow {position: absolute; z-index: -1; border-radius: 50%; pointer-events: none; filter: blur(10px);}
.hero__glow--left {width: 670px; height: 670px; left: -420px; top: -300px; background: radial-gradient(circle, #1d53703e, transparent 71%);}
.hero__glow--right {width: 850px; height: 850px; right: -250px; top: -230px; background: radial-gradient(circle, #2a62825b 0%, #0b2e4315 45%, transparent 67%);}
.hero__inner {min-height: 640px; display: grid; grid-template-columns: 1.06fr .94fr; gap: 24px; align-items: center;}
.hero__copy {position: relative; z-index: 3; padding: 78px 0 92px;}
.eyebrow {margin: 0 0 23px; color: #ce7336; display: inline-flex; align-items: center; gap: 11px; font-family: var(--font-head); font-size: 11px; font-weight: 800; letter-spacing: .18em; line-height: 1.5; text-transform: uppercase;}
.eyebrow--light {color: #ffb178;}
.eyebrow__line {display: inline-block; width: 30px; height: 2px; flex: none; background: currentColor;}
.eyebrow__slash {color: #8193a0; margin-inline: 1px;}
.hero h1 {max-width: 730px; margin: 0; font: 600 clamp(55px, 5.3vw, 78px)/.99 var(--font-head); letter-spacing: -.048em; text-wrap: balance;}
.hero h1 span:not(.hero__period) {color: var(--orange-light);}
.hero h1 .hero__period {color: var(--orange);}
.hero__lead {max-width: 470px; margin: 28px 0 0; color: #c8d4dc; font-size: 17px; line-height: 1.75;}
.hero__actions {display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 33px;}
.btn {display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 54px; padding: 13px 23px; border: 1px solid transparent; border-radius: 9px; font-size: 13px; font-weight: 800; transition: background .2s ease, transform .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease;}
.btn:hover {transform: translateY(-3px);}
.btn svg {transition: transform .2s ease;}
.btn:hover svg {transform: translateX(4px);}
.btn--orange {background: var(--orange); color: var(--navy-deep); box-shadow: 0 10px 24px #ed8c3c2b;}
.btn--orange:hover {background: #ffa360; box-shadow: 0 15px 27px #ed8c3c35;}
.btn--outline {border-color: #90b0c454; color: #f4f8fb; background: #ffffff08;}
.btn--outline:hover {background: #ffffff18; border-color: #8aaabd;}
.hero__assurance {display: flex; align-items: center; gap: 10px; margin-top: 38px; color: #bacbd5; font-size: 12px; font-weight: 700; letter-spacing: .03em;}
.hero__assurance-icon {display: grid; place-items: center; width: 29px; height: 29px; border: 1px solid #f18b4255; border-radius: 50%; color: var(--orange-light);}
.hero__assurance-icon svg {width: 17px; height: 17px;}
.hero__visual {height: 630px; position: relative; align-self: end; display: grid; place-items: center; min-width: 0;}
.hero__ring {position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); border: 1px solid #b3cfdf1e; border-radius: 50%; pointer-events: none;}
.hero__ring--outer {width: 100%; max-width: 615px; aspect-ratio: 1;}
.hero__ring--inner {width: 78%; max-width: 480px; aspect-ratio: 1; border-style: dashed; border-color: #abc5d530;}
.hero__ring--outer::before {content: ''; position: absolute; width: 8px; height: 8px; top: 17%; left: 14%; background: var(--orange); border-radius: 50%; box-shadow: 0 0 0 6px #f18b4216;}
.hero__heater {position: relative; z-index: 2; width: min(100%, 620px); height: auto; transform: translate(4px, 15px); filter: drop-shadow(0 30px 24px #0000002e); animation: heater-rise 5s ease-in-out infinite;}
@keyframes heater-rise {0%,100%{transform: translate(4px,15px)}50%{transform:translate(4px,6px)}}
.hero__visual-number {position: absolute; top: 72px; right: 36px; color: #8cacbd; font: 600 12px var(--font-head); letter-spacing: .15em;}
.hero__visual-label {position: absolute; bottom: 70px; left: 26px; color: #6d90a6; font: 700 10px/1.5 var(--font-head); letter-spacing: .16em;}
.floating-label {z-index: 4; position: absolute; display: flex; align-items: center; gap: 12px; min-width: 162px; padding: 14px 17px; border: 1px solid #bdd5e540; border-radius: 13px; color: #bdcdd7; background: linear-gradient(145deg, #25445bab, #17354bbc); backdrop-filter: blur(15px); box-shadow: 0 17px 35px #00132235; font: 500 10px/1.5 var(--font-head); letter-spacing: .11em;}
.floating-label strong {font-size: 11px; color: #fff; letter-spacing: .08em;}
.floating-label--top {left: 0; top: 180px;}
.floating-label--bottom {right: 0; bottom: 114px;}
.floating-label__marker {width: 11px; height: 11px; flex: none; background: var(--orange); border-radius: 50%; box-shadow: 0 0 0 5px #f18b422b;}
.floating-label__icon {width: 34px; height: 34px; flex: none; border-radius: 10px; display: grid; place-items: center; background: #ffab621a; color: var(--orange-light);}
.floating-label__icon svg {width: 21px; height: 21px;}
.hero__bottomline {border-top: 1px solid #d5e5ee19;}
.hero__bottomline .container {display: flex; gap: 42px; align-items: center; height: 57px;}
.hero__bottomline span {font: 700 10px var(--font-head); letter-spacing: .17em; color: #88a3b5;}
.hero__bottomline span + span::before {content: ''; width: 4px; height: 4px; display: inline-block; margin-right: 42px; vertical-align: 2px; border-radius: 50%; background: var(--orange);}
/* Intro rail */
.highlights {position: relative; z-index: 2; background: #fff; box-shadow: 0 8px 24px #0f31400b;}
.highlights__grid {display: grid; grid-template-columns: repeat(3,1fr);}
.highlight {min-height: 115px; padding: 26px 25px; display: flex; align-items: center; justify-content: center; gap: 18px; color: var(--body); font-size: 13px; line-height: 1.4;}
.highlight + .highlight {border-left: 1px solid #e8edf0;}
.highlight strong {font-size: 14px; color: var(--navy); font-weight: 800;}
.highlight__icon {display: grid; place-items: center; width: 56px; height: 56px; flex: 0 0 56px; border-radius: 16px; background: var(--orange-pale); color: #e4833b;}
.highlight__icon svg {width: 32px; height: 32px;}
/* Common sections */
.section {padding: 105px 0 115px;}
.section-heading {display: flex; justify-content: space-between; gap: 40px; align-items: end; margin-bottom: 45px;}
.section-heading > div {max-width: 710px;}
.section-heading .eyebrow {margin-bottom: 17px;}
.section-heading h2, .coverage-intro h2, .guarantee-panel h2 {margin: 0; color: var(--navy); font: 600 clamp(40px, 4.3vw, 58px)/1.09 var(--font-head); letter-spacing: -.045em; text-wrap: balance;}
.section-heading h2 span, .coverage-intro h2 span {color: var(--steel);}
.section-heading__description {max-width: 280px; margin: 0 0 5px; color: var(--body); font-size: 14px; line-height: 1.85;}
/* Service cards */
.services-section {background: #fff;}
.service-grid {display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px;}
.service-card {position: relative; display: flex; flex-direction: column; min-height: 380px; padding: 30px 30px 35px; overflow: hidden; border: 1px solid #dce5e9; border-radius: 18px; background: linear-gradient(147deg, #fff 0%, #fbfcfd 65%, #f5f8fa 100%); box-shadow: 0 11px 34px #1e40510a; transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;}
.service-card:hover {transform: translateY(-8px); border-color: #f3b88b; box-shadow: 0 24px 45px #13374d19;}
.service-card::before {content: ''; width: 105px; height: 105px; position: absolute; top: -80px; right: -35px; border-radius: 50%; background: #ffd4b356; transition: transform .35s ease;}
.service-card:hover::before {transform: scale(2.1);}
.service-card__top {position: relative; display: flex; justify-content: space-between; align-items: start; gap: 20px;}
.service-card__number {font: 700 12px var(--font-head); color: #96a9b6; letter-spacing: .12em;}
.service-card__icon {width: 84px; height: 84px; border-radius: 20px; background: #fff1e4; color: #e88943; display: grid; place-items: center;}
.service-card__icon svg {width: 55px; height: 55px;}
.service-card__rule {width: 33px; height: 3px; background: var(--orange); margin: 23px 0 22px;}
.service-card h3 {font: 600 28px/1.2 var(--font-head); letter-spacing: -.025em; color: var(--navy); margin: 0 0 15px;}
.service-card p {margin: 0; max-width: 255px; color: var(--body); font-size: 14px; line-height: 1.75;}
.service-card__corner {position: absolute; bottom: 28px; right: 28px; width: 33px; height: 33px; color: #9aafbc; border: 1px solid #dbe4e9; border-radius: 8px; display: grid; place-items: center; transition: color .3s, background .3s, border-color .3s;}
.service-card:hover .service-card__corner {background: var(--orange); border-color: var(--orange); color: var(--navy);}
.service-card__corner svg {width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;}
/* Brand typography tiles (not official marks) */
.brands-section {background: #f2f6f8; position: relative; overflow: hidden;}
.brands-section::before {content: ''; position: absolute; width: 320px; height: 320px; border-radius: 50%; top: -120px; right: -160px; border: 70px solid #e4ebf0; opacity: .48; pointer-events: none;}
.brand-grid {position: relative; display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 14px;}
.brand-card {position: relative; min-height: 184px; padding: 25px 20px; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; background: #fff; border: 1px solid #e0e8eb; border-radius: 14px; transition: box-shadow .3s ease, border-color .3s ease, transform .3s ease;}
.brand-card:hover {border-color: #e9a36d; transform: translateY(-6px); box-shadow: 0 15px 28px #163b5010;}
.brand-card__index {color: #91a3ae; font: 700 10px var(--font-head); letter-spacing: .11em;}
.brand-card__name {position: relative; z-index: 1; color: var(--navy); font: 600 clamp(23px, 2.5vw, 32px)/1.15 var(--font-head); letter-spacing: -.04em; overflow-wrap: anywhere;}
.brand-card__line {height: 3px; width: 40px; background: var(--orange); border-radius: 2px; transition: width .3s ease;}
.brand-card:hover .brand-card__line {width: 100%;}
/* Coverage */
.coverage-section {background: #fff;}
.coverage-layout {display: grid; grid-template-columns: .95fr 1.05fr; gap: 24px; align-items: stretch;}
.coverage-intro {min-height: 465px; position: relative; background: linear-gradient(132deg,#19435f,#0b273e 75%); border-radius: 20px; color: #cbd9e2; padding: 49px 44px 40px; overflow: hidden; isolation: isolate;}
.coverage-intro::before {content: ''; position: absolute; z-index: -1; border-radius: 50%; width: 360px; height: 360px; right: -170px; top: -180px; border: 60px solid #ffffff06;}
.coverage-intro h2 {color: #fff; max-width: 425px; font-size: clamp(42px, 4vw, 59px);}
.coverage-intro h2 span {color: var(--orange-light);}
.coverage-intro > p:not(.eyebrow) {max-width: 350px; margin: 23px 0 0; line-height: 1.75; font-size: 15px;}
.coverage-intro__art {position: absolute; left: 40px; bottom: 17px; width: 280px; height: 150px; color: #ecaa76; opacity: .75;}
.coverage-intro__art svg {width: 100%; height: 100%;}
.coverage-grid {display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px;}
.coverage-card {padding: 24px; border: 1px solid #dce6eb; border-radius: 17px; position: relative; background: #f9fbfc; min-height: 222px; display: flex; flex-direction: column; align-items: flex-start; justify-content: space-between; transition: background .25s ease, transform .25s ease, border-color .25s ease;}
.coverage-card:hover {transform: translateY(-5px); border-color: #f0b68b; background: #fffaf5;}
.coverage-card__num {font: 700 11px var(--font-head); letter-spacing: .1em; color: #92a7b4;}
.coverage-card__pin {position: absolute; top: 19px; right: 20px; width: 40px; height: 40px; display: grid; place-items: center; border-radius: 11px; color: #e48a45; background: #fff0e3;}
.coverage-card__pin svg {width: 22px; height: 22px;}
.coverage-card h3 {margin: 0; max-width: 255px; color: var(--navy); font: 600 clamp(22px, 2.4vw, 29px)/1.15 var(--font-head); letter-spacing: -.03em;}
.coverage-card h3 small {display: block; font-size: 17px; letter-spacing: 0; color: var(--steel); margin-top: 6px;}
/* Guarantee */
.guarantee-section {background: #f5f8fa; padding: 20px 0 110px;}
.guarantee-panel {min-height: 370px; display: grid; grid-template-columns: 1.3fr .7fr; align-items: center; gap: 35px; position: relative; overflow: hidden; color: #fff; border-radius: 22px; padding: 52px 72px; background: radial-gradient(circle at 83% 35%, #26536c 0%, #12344c 36%, #0a2338 72%); box-shadow: 0 25px 50px #0c2c3c1f;}
.guarantee-panel::before {content: ''; position: absolute; top: 0; left: 0; height: 6px; width: 100%; background: linear-gradient(90deg,var(--orange) 0%, #ffbe87 24%, transparent 65%);}
.guarantee-panel__copy {position: relative; z-index: 2;}
.guarantee-panel h2 {max-width: 550px; color: #fff; font-size: clamp(45px, 4.8vw, 65px);}
.guarantee-panel h2 span {color: var(--orange-light);}
.guarantee-panel__copy > p:not(.eyebrow) {max-width: 525px; margin: 23px 0 0; color: #c9d9e2; font-size: 16px; line-height: 1.8;}
.guarantee-panel__art {height: 252px; display: grid; place-items: center; position: relative; color: var(--orange-light);}
.guarantee-panel__art svg {position: relative; z-index: 2; height: 205px; width: 205px; filter: drop-shadow(0 0 23px #f18b4235);}
.guarantee-panel__orbit {position: absolute; width: 288px; height: 288px; border-radius: 50%; border: 1px dashed #ffffff38;}
.guarantee-panel__orbit::before, .guarantee-panel__orbit::after {content: ''; position: absolute; inset: 23px; border: 1px solid #ffffff16; border-radius: 50%;}
.guarantee-panel__orbit::after {inset: -29px; border-style: solid; opacity: .6;}
/* Footer */
.site-footer {background: #071a2a; color: #a9bcc8;}
.footer-main {display: grid; grid-template-columns: 2fr .9fr .9fr 1.25fr; gap: 45px; padding: 75px 0 65px;}
.brand--footer .brand__mark {background: #1d405a; color: var(--orange-light);}
.brand--footer .brand__text {color: #9ab3c4;}
.brand--footer .brand__text strong {color: #fff;}
.footer-about p {max-width: 275px; margin: 22px 0 0; font-size: 14px; line-height: 1.8;}
.footer-col {display: flex; flex-direction: column; align-items: flex-start; gap: 11px; font-size: 13px; line-height: 1.5;}
.footer-col h2 {margin: 4px 0 11px; font: 700 15px var(--font-head); color: #fff; letter-spacing: .02em;}
.footer-col a {transition: color .2s ease, transform .2s ease;}
.footer-col a:hover {color: var(--orange-light); transform: translateX(3px);}
.footer-bottom {border-top: 1px solid #acc5d01d; min-height: 71px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #708b9e; font-size: 12px;}
.footer-bottom a {color: #c3d5df; font-weight: 700; display: inline-flex; align-items: center; gap: 10px; transition: color .2s ease;}
.footer-bottom a:hover {color: var(--orange-light);}
/* Floating utility */
.back-to-top {position: fixed; z-index: 1000; bottom: 24px; right: 24px; height: 47px; width: 47px; border: none; border-radius: 12px; display: grid; place-items: center; background: var(--orange); color: var(--navy-deep); box-shadow: 0 10px 26px #0c293b35; cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(12px); transition: opacity .25s, transform .25s, visibility .25s, background .2s;}
.back-to-top.is-visible {opacity: 1; visibility: visible; transform: translateY(0);}
.back-to-top:hover {background: #ffb275; transform: translateY(-3px);}
/* Viewport reveal: page content stays visible if scripts do not load. */
/* Progressive enhancement: preserve visible content even if observers are unavailable. */
.js-enabled .reveal.is-visible {animation: reveal-up .65s cubic-bezier(.2,.7,.2,1) both;}
@keyframes reveal-up {from {opacity: .65; transform: translateY(20px);} to {opacity: 1; transform: translateY(0);}}
.service-card:nth-child(2), .brand-card:nth-child(2), .coverage-card:nth-child(2) {transition-delay: .07s;}
.service-card:nth-child(3), .brand-card:nth-child(3), .coverage-card:nth-child(3) {transition-delay: .13s;}
.brand-card:nth-child(4), .coverage-card:nth-child(4) {transition-delay: .19s;}
.brand-card:nth-child(5) {transition-delay: .25s;}
/* Tablet */
@media (max-width: 1100px) {
  .container {width: min(calc(100% - 52px), var(--container));}
  .brand__text strong {font-size: 14px;}
  .main-nav {gap: 17px;}
  .hero h1 {font-size: clamp(54px, 5.6vw, 71px);}
  .hero__inner {grid-template-columns: 1.02fr .98fr;}
  .hero__visual {height: 600px;}
  .floating-label--top {left: -14px;}
  .floating-label--bottom {right: -9px;}
  .service-card {min-height: 374px; padding: 25px;}
  .service-card h3 {font-size: 25px;}
  .service-card__icon {width: 74px; height: 74px;}
  .brand-grid {gap: 11px;}
  .brand-card {padding: 21px 15px;}
  .brand-card__name {font-size: 26px;}
  .coverage-intro {padding: 42px 32px;}
  .footer-main {gap: 26px;}
}
@media (max-width: 900px) {
  :root {--header-h: 74px;}
  .utility-bar {height: 32px;}
  .utility-bar__places {font-size: 10px; letter-spacing: .02em;}
  .nav-toggle {width: 44px; height: 44px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; border: 1px solid #dee7eb; border-radius: 10px; background: #fff; cursor: pointer; position: relative; z-index: 2;}
  .nav-toggle span {width: 20px; height: 2px; border-radius: 2px; background: var(--navy); transition: transform .25s, opacity .25s;}
  .nav-toggle[aria-expanded="true"] span:nth-child(1) {transform: translateY(7px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span:nth-child(2) {opacity: 0;}
  .nav-toggle[aria-expanded="true"] span:nth-child(3) {transform: translateY(-7px) rotate(-45deg);}
  .main-nav {position: absolute; left: 0; right: 0; top: calc(100% + 1px); display: flex; flex-direction: column; align-items: stretch; gap: 3px; padding: 12px max(26px, calc((100vw - 1216px)/2)) 21px; border-top: 1px solid #e8edf0; background: #fff; box-shadow: 0 25px 35px #0c28321c; visibility: hidden; opacity: 0; pointer-events: none; transform: translateY(-12px); transition: opacity .24s, transform .24s, visibility .24s;}
  .main-nav.is-open {visibility: visible; opacity: 1; pointer-events: auto; transform: translateY(0);}
  .main-nav .nav-link {padding: 13px 14px; border-radius: 7px; font-size: 14px;}
  .main-nav .nav-link.active:not(.nav-link--featured) {color: #bc672f; background: #fff5ec;}
  .main-nav .nav-link::after {display: none;}
  .main-nav .nav-link--featured {justify-content: space-between; margin-top: 7px; padding: 13px 15px;}
  .hero__inner {min-height: 620px;}
  .hero__copy {padding-block: 70px;}
  .hero h1 {font-size: clamp(48px, 6.1vw, 61px);}
  .hero__lead {font-size: 15px;}
  .hero__visual {height: 550px;}
  .floating-label {min-width: 140px; padding: 11px; font-size: 9px;}
  .floating-label--top {top: 162px; left: -10px;}
  .floating-label--bottom {bottom: 105px; right: -7px;}
  .section {padding: 82px 0 90px;}
  .section-heading {align-items: start; flex-direction: column; gap: 13px; margin-bottom: 33px;}
  .section-heading__description {max-width: 470px;}
  .service-card {min-height: 365px;}
  .service-card h3 {font-size: 24px;}
  .brand-grid {grid-template-columns: repeat(3,minmax(0,1fr));}
  .brand-card {min-height: 165px;}
  .coverage-layout {grid-template-columns: 1fr;}
  .coverage-intro {min-height: 310px;}
  .coverage-intro__art {left: auto; right: 25px; bottom: -5px; opacity: .4;}
  .coverage-grid {grid-template-columns: repeat(4,minmax(0,1fr)); gap: 12px;}
  .coverage-card {min-height: 185px; padding: 18px;}
  .coverage-card h3 {font-size: 21px;}
  .coverage-card h3 small {font-size: 14px;}
  .coverage-card__pin {width: 35px; height: 35px; top: 15px; right: 15px;}
  .guarantee-section {padding-bottom: 84px;}
  .guarantee-panel {padding: 47px 44px;}
  .footer-main {grid-template-columns: 1.7fr 1fr 1fr; row-gap: 40px;}
  .footer-col:last-child {grid-column: 2 / 4;}
}
/* Phones */
@media (max-width: 670px) {
  :root {--header-h: 69px;}
  html {scroll-padding-top: 84px;}
  .container {width: calc(100% - 36px);}
  .utility-bar {height: 31px;}
  .utility-bar__inner {justify-content: center;}
  .utility-bar__places {display: none;}
  .utility-bar__service {font-size: 10px; letter-spacing: .1em;}
  .brand {gap: 9px;}
  .brand__mark {width: 40px; height: 40px; border-radius: 10px;}
  .brand__mark svg {width: 27px; height: 27px;}
  .brand__text {font-size: 9px; letter-spacing: .07em;}
  .brand__text strong {font-size: clamp(10px, 3vw, 13px); letter-spacing: -.015em;}
  .main-nav {padding-inline: 18px;}
  .hero__inner {grid-template-columns: 1fr; min-height: 0; gap: 0;}
  .hero__copy {padding: 64px 0 20px;}
  .hero__eyebrow {font-size: 10px; letter-spacing: .12em; margin-bottom: 22px;}
  .hero h1 {font-size: clamp(50px, 11vw, 72px); max-width: 570px; letter-spacing: -.052em; line-height: 1.015;}
  .hero__lead {font-size: 15px; line-height: 1.75; margin-top: 22px; max-width: 440px;}
  .hero__actions {margin-top: 28px; gap: 10px;}
  .btn {min-height: 51px; padding: 12px 17px; gap: 10px; font-size: 12px;}
  .hero__assurance {margin-top: 24px;}
  .hero__visual {height: 405px; align-self: stretch; max-width: 540px; width: 100%; margin-inline: auto;}
  .hero__heater {width: min(100%, 445px); transform: translateY(0);}
  @keyframes heater-rise {0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
  .hero__ring--outer {width: 90%;}
  .hero__ring--inner {width: 68%;}
  .hero__visual-number {top: 25px; right: 9px; font-size: 10px;}
  .hero__visual-label {bottom: 43px; left: 5px; font-size: 9px;}
  .floating-label {min-width: 124px; padding: 8px 10px; border-radius: 10px; gap: 8px;}
  .floating-label strong {font-size: 9px;}
  .floating-label--top {left: 0; top: 85px;}
  .floating-label--bottom {right: 0; bottom: 55px;}
  .floating-label__icon {width: 29px; height: 29px;}
  .floating-label__icon svg {width: 18px; height: 18px;}
  .hero__bottomline .container {height: 47px; gap: 14px; justify-content: space-between;}
  .hero__bottomline span {font-size: 9px; letter-spacing: .08em;}
  .hero__bottomline span + span::before {margin-right: 12px;}
  .highlights__grid {grid-template-columns: 1fr;}
  .highlight {min-height: 91px; padding: 17px 10px; justify-content: start; gap: 15px;}
  .highlight + .highlight {border-left: 0; border-top: 1px solid #e8edf0;}
  .highlight__icon {width: 50px; height: 50px; flex-basis: 50px; border-radius: 12px;}
  .highlight__icon svg {width: 29px; height: 29px;}
  .section {padding: 72px 0 78px;}
  .eyebrow {font-size: 10px; letter-spacing: .15em; gap: 9px;}
  .eyebrow__line {width: 22px;}
  .section-heading h2, .coverage-intro h2 {font-size: clamp(39px, 9vw, 52px);}
  .section-heading__description {font-size: 14px;}
  .service-grid {grid-template-columns: 1fr; gap: 14px;}
  .service-card {min-height: 285px; padding: 25px 25px 31px;}
  .service-card__top {align-items: center;}
  .service-card__icon {width: 69px; height: 69px; border-radius: 15px;}
  .service-card__icon svg {width: 48px; height: 48px;}
  .service-card__rule {margin: 20px 0 16px;}
  .service-card h3 {font-size: 26px; margin-bottom: 9px;}
  .service-card p {font-size: 13px;}
  .brand-grid {grid-template-columns: repeat(2,minmax(0,1fr)); gap: 11px;}
  .brand-card {min-height: 151px; padding: 20px 17px;}
  .brand-card__name {font-size: clamp(23px, 6vw, 30px);}
  .coverage-layout {gap: 13px;}
  .coverage-intro {min-height: 340px; padding: 34px 27px;}
  .coverage-intro__art {width: 230px; right: 4px; bottom: -15px; opacity: .34;}
  .coverage-intro > p:not(.eyebrow) {margin-top: 17px; font-size: 14px;}
  .coverage-grid {grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px;}
  .coverage-card {min-height: 181px; padding: 20px;}
  .coverage-card h3 {font-size: clamp(19px, 5vw, 24px); overflow-wrap: break-word;}
  .coverage-card h3 small {font-size: 14px;}
  .guarantee-section {padding: 0 0 72px;}
  .guarantee-panel {min-height: 0; padding: 38px 25px 22px; grid-template-columns: 1fr; gap: 2px; border-radius: 19px;}
  .guarantee-panel h2 {font-size: clamp(42px, 10vw, 59px);}
  .guarantee-panel__copy > p:not(.eyebrow) {font-size: 14px; margin-top: 18px;}
  .guarantee-panel__art {height: 168px;}
  .guarantee-panel__art svg {height: 135px; width: 135px;}
  .guarantee-panel__orbit {width: 193px; height: 193px;}
  .footer-main {grid-template-columns: repeat(2,minmax(0,1fr)); gap: 35px 16px; padding: 55px 0 50px;}
  .footer-about {grid-column: 1 / -1;}
  .footer-col:last-child {grid-column: auto;}
  .footer-about p {margin-top: 15px;}
  .footer-col h2 {margin-bottom: 5px;}
  .footer-bottom {min-height: 74px; font-size: 11px;}
  .back-to-top {right: 16px; bottom: 16px; width: 44px; height: 44px;}
}
@media (max-width: 370px) {
  .brand__text strong {font-size: 10px;}
  .brand__mark {width: 36px; height: 36px;}
  .hero h1 {font-size: 47px;}
  .btn {width: 100%; justify-content: space-between;}
  .hero__visual {height: 342px;}
  .hero__heater {width: 335px;}
  .floating-label--top {top: 75px;}
  .floating-label--bottom {bottom: 30px;}
  .coverage-card {padding: 16px; min-height: 174px;}
  .coverage-card h3 {font-size: 19px;}
  .coverage-card__pin {width: 32px; height: 32px;}
  .footer-main {grid-template-columns: 1fr 1fr;}
  .footer-bottom {gap: 10px;}
}
@media (prefers-reduced-motion: reduce) {
  html {scroll-behavior: auto;}
  *, *::before, *::after {animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important;}
  .js-enabled .reveal {opacity: 1; transform: none;}
}