:root {
  --color-primary: #c9902e;
  --color-primary-dark: #a56f18;
  --color-secondary: #f5ead7;
  --color-dark: #141414;
  --color-dark-soft: #232323;
  --color-light: #ffffff;
  --color-muted: #66635f;
  --color-border: #ddd8d0;
  --shadow-soft: 0 14px 40px rgba(20, 20, 20, 0.1);
  --radius-lg: 6px;
  --radius-md: 3px;
  --container: 1680px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 94px; }
body { margin: 0; color: var(--color-dark); background: #fff; font-family: Arial, Helvetica, sans-serif; font-size: 16px; line-height: 1.55; overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.12; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.container { width: min(calc(100% - 72px), var(--container)); margin-inline: auto; }
.section { padding: 64px 0; }
.skip-link { position: fixed; z-index: 9999; top: 8px; left: 8px; padding: 10px 16px; background: #fff; color: #111; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid #f3b84b; outline-offset: 3px; }

.eyebrow { margin-bottom: 12px; color: #8c8a86; font-size: 12px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.section-heading { max-width: 800px; margin-bottom: 32px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading h2, .challenge-intro h2, .about-copy h2, .contact-cta h2 { margin-bottom: 16px; font-size: clamp(32px, 2.5vw, 48px); }
.gold-line { display: block; width: 48px; height: 3px; margin: 19px 0; background: var(--color-primary); }

.btn { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 10px; padding: 13px 20px; border: 1px solid transparent; border-radius: var(--radius-md); font-size: 12px; font-weight: 800; letter-spacing: .02em; text-align: center; text-transform: uppercase; transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-outline-light { border-color: rgba(255,255,255,.85); color: #fff; background: rgba(10,10,10,.25); }
.btn-outline-light:hover { background: #fff; color: #111; }
.btn-outline-dark { border-color: var(--color-primary); color: #5d421c; background: #fff; }
.btn-outline-dark:hover { background: var(--color-primary); color: #fff; }
.button-row { display: flex; flex-wrap: wrap; gap: 14px; }

.site-header { position: relative; z-index: 100; }
.topbar { background: #151515; color: #e8e8e8; font-size: 12px; }
.topbar-inner { min-height: 40px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.topbar i { margin-right: 7px; color: var(--color-primary); }
.topbar a:hover { color: #fff; }
.main-nav-wrap { background: #fff; box-shadow: 0 3px 16px rgba(0,0,0,.08); }
.main-nav { min-height: 102px; display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.brand { flex: 0 0 auto; }
.brand img { width: 225px; height: 78px; object-fit: contain; }
.site-menu { display: flex; align-items: center; gap: clamp(18px, 1.7vw, 34px); font-size: 14px; font-weight: 700; }
.site-menu > a:not(.nav-cta) { position: relative; padding: 39px 0 34px; }
.site-menu > a:not(.nav-cta)::after { position: absolute; right: 0; bottom: 24px; left: 0; height: 2px; background: var(--color-primary); content: ""; transform: scaleX(0); transition: transform .2s ease; }
.site-menu > a:hover::after, .site-menu > a.active::after { transform: scaleX(1); }
.site-menu > a.active { color: var(--color-primary-dark); }
.nav-cta { padding: 14px 17px; background: var(--color-primary); color: #fff; text-transform: uppercase; }
.nav-cta:hover { background: var(--color-primary-dark); }
.menu-toggle { display: none; width: 46px; height: 46px; border: 1px solid var(--color-border); background: #fff; cursor: pointer; }

.hero { min-height: clamp(620px, 39vw, 760px); display: grid; align-items: center; color: #fff; background-image: linear-gradient(90deg, rgba(6,6,6,.86) 0%, rgba(6,6,6,.56) 38%, rgba(6,6,6,.06) 76%), url('../img/cobertura-vidro-sob-medida-sao-paulo.webp'); background-position: center 48%; background-size: cover; }
.hero-content { padding-block: 80px; }
.hero h1 { max-width: 760px; margin-bottom: 25px; font-size: clamp(48px, 4.2vw, 78px); letter-spacing: -.035em; }
.hero p { max-width: 630px; margin-bottom: 34px; color: rgba(255,255,255,.9); font-size: 19px; }
.trust-strip { background: linear-gradient(90deg, #151515, #2a2927, #171717); color: #fff; }
.trust-grid { min-height: 112px; display: grid; grid-template-columns: repeat(3, 1fr); align-items: center; }
.trust-grid article { min-width: 0; display: flex; align-items: center; gap: 18px; padding: 14px 34px; border-right: 1px solid rgba(255,255,255,.22); }
.trust-grid article:last-child { border: 0; }
.trust-grid article > i { color: var(--color-primary); font-size: 36px; }
.trust-grid strong, .trust-grid span { display: block; }
.trust-grid strong { color: #e7b052; font-size: 17px; }
.trust-grid span { color: #d0d0d0; font-size: 13px; }

.challenges { background: #faf9f7; }
.challenges-grid { display: grid; grid-template-columns: .72fr 2.28fr; gap: 72px; }
.challenge-intro { align-self: center; }
.challenge-intro p:last-child { color: var(--color-muted); }
.challenge-items { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.challenge-item { display: grid; grid-template-rows: 48px auto auto 185px; padding: 0 8px; }
.challenge-item > i { font-size: 37px; }
.challenge-item h3 { margin: 10px 0 7px; font-size: 15px; }
.challenge-item p { min-height: 40px; margin-bottom: 16px; color: var(--color-muted); font-size: 13px; }
.photo-frame { width: 100%; display: block; overflow: hidden; padding: 0; border: 0; background: #e8e5df; cursor: zoom-in; }
.challenge-item img { width: 100%; height: 185px; object-fit: cover; transition: filter .25s ease, transform .3s ease; }
.challenge-item:hover img, .photo-frame:focus-visible img { filter: brightness(1.07); transform: scale(1.025); }

.services { background: #fff; }
.services-layout { display: grid; grid-template-columns: 1fr 300px; gap: 42px; align-items: start; }
.service-list { display: grid; grid-template-columns: repeat(5, 1fr); }
.service-card { padding: 18px 28px; border-right: 1px solid var(--color-border); transition: transform .2s ease; }
.service-card:hover { transform: translateY(-4px); }
.service-card:first-child { padding-left: 0; }
.service-card:last-child { border: 0; }
.service-card i { margin-bottom: 24px; font-size: 38px; }
.service-card h3 { min-height: 48px; margin-bottom: 13px; font-size: 18px; }
.service-card p { color: var(--color-muted); font-size: 13px; }
.tech-card { padding: 28px 27px 20px; border: 1px solid var(--color-border); background: #faf9f7; box-shadow: var(--shadow-soft); }
.tech-card h3 { margin-bottom: 22px; font-size: 14px; text-transform: uppercase; }
.tech-card li { display: flex; gap: 10px; margin-bottom: 15px; color: #45413c; font-size: 12px; }
.tech-card li i { margin-top: 4px; color: var(--color-primary); }
.options-strip { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 36px; border: 1px solid var(--color-border); background: #fbfaf8; }
.options-strip article { display: flex; align-items: center; gap: 15px; padding: 20px 24px; border-right: 1px solid var(--color-border); }
.options-strip article:last-child { border-right: 0; }
.options-strip article > i { color: var(--color-primary-dark); font-size: 25px; }
.options-strip h3 { margin-bottom: 4px; font-size: 14px; }
.options-strip p { margin: 0; color: var(--color-muted); font-size: 11px; }

.video-demo { background: linear-gradient(115deg, #141414, #242321); color: #fff; }
.video-demo-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(360px, .55fr); gap: clamp(48px, 5vw, 92px); align-items: center; }
.video-frame { position: relative; overflow: hidden; border: 1px solid rgba(255,255,255,.15); background: #050505; box-shadow: 0 24px 60px rgba(0,0,0,.32); }
.video-frame video { width: 100%; aspect-ratio: 20 / 11; display: block; background: #050505; object-fit: cover; }
.video-badge { position: absolute; top: 16px; left: 16px; display: inline-flex; align-items: center; gap: 8px; padding: 8px 11px; background: rgba(17,17,17,.82); color: #fff; font-size: 11px; font-weight: 800; letter-spacing: .03em; text-transform: uppercase; pointer-events: none; }
.video-badge i { color: var(--color-primary); font-size: 14px; }
.video-demo-copy { max-width: 560px; }
.video-demo-copy .eyebrow { color: #d5a654; }
.video-demo-copy h2 { margin-bottom: 18px; font-size: clamp(32px, 2.7vw, 50px); }
.video-demo-copy > p:not(.eyebrow) { margin-bottom: 24px; color: #cfcdc9; }
.video-demo-copy ul { display: grid; gap: 11px; margin-bottom: 28px; }
.video-demo-copy li { display: flex; gap: 11px; color: #e7e5e1; font-size: 13px; }
.video-demo-copy li i { margin-top: 4px; color: var(--color-primary); }

.projects { padding-top: 40px; background: #fff; }
.project-grid { display: grid; grid-template-columns: 1.05fr 1fr 1fr 1.05fr; grid-auto-flow: dense; grid-auto-rows: 235px; gap: 10px; }
.project { position: relative; margin: 0; overflow: hidden; background: #222; }
.project-tall { grid-row: span 2; }
.project-trigger { width: 100%; height: 100%; display: block; padding: 0; border: 0; background: #222; cursor: zoom-in; }
.project img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.project:hover img, .project-trigger:focus-visible img { transform: scale(1.04); }
.project-caption { position: absolute; top: 12px; left: 12px; padding: 7px 10px; background: rgba(17,17,17,.82); color: #fff; font-size: 12px; font-weight: 700; }
.centered-action { margin-top: 24px; text-align: center; }

.about { background: #f7f4ef; }
.about-content { display: grid; grid-template-columns: 1fr 1fr; min-height: 630px; }
.about-copy { width: min(calc(100% - 72px), 720px); margin-left: max(36px, calc((100vw - var(--container)) / 2)); padding: 58px 70px 52px 0; align-self: center; }
.about-copy > p:not(.eyebrow) { color: var(--color-muted); }
.benefits-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 34px; margin: 28px 0; }
.benefits-grid article { display: flex; gap: 13px; }
.benefits-grid i { color: #5c5a56; font-size: 23px; }
.benefits-grid h3 { margin-bottom: 5px; font-size: 13px; }
.benefits-grid p { margin: 0; color: var(--color-muted); font-size: 11px; }
.service-area { display: grid; grid-template-columns: auto 1fr; gap: 0 13px; padding: 16px 22px; background: var(--color-secondary); }
.service-area i { grid-row: span 2; align-self: center; color: var(--color-primary-dark); font-size: 23px; }
.service-area strong { font-size: 14px; }
.service-area span { color: var(--color-muted); font-size: 12px; }
.google-reviews { margin-top: 13px; padding: 18px; border: 1px solid #dfcaa5; background: #fff; box-shadow: 0 9px 24px rgba(20,20,20,.06); }
.google-reviews-heading { display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: start; }
.google-reviews-heading > i { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--color-secondary); color: var(--color-primary-dark); font-size: 18px; }
.google-reviews h3 { margin: 1px 0 4px; font-size: 14px; }
.google-reviews p { margin: 0; color: var(--color-muted); font-size: 11px; }
.google-reviews-actions { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 15px; }
.google-reviews-actions .btn { min-height: 42px; padding: 10px 14px; font-size: 10px; }
.about-image { min-height: 630px; overflow: hidden; }
.about-image-trigger { position: relative; width: 100%; height: 100%; display: block; padding: 0; border: 0; background: #dce3e9; cursor: zoom-in; }
.about-image img { width: 100%; height: 100%; min-height: 630px; object-fit: cover; object-position: center; transition: transform .4s ease; }
.about-image-trigger:hover img, .about-image-trigger:focus-visible img { transform: scale(1.025); }
.about-image-trigger span { position: absolute; right: 22px; bottom: 22px; padding: 10px 14px; background: rgba(17,17,17,.8); color: #fff; font-size: 12px; font-weight: 700; }
.about-image-trigger span i { margin-right: 7px; }

.process { background: #fcfbf9; }
.process-list { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; margin-top: 40px; }
.process-list::before { position: absolute; z-index: 0; top: 71px; right: 8%; left: 8%; height: 1px; background: #d5c09e; content: ""; }
.process-list li { position: relative; z-index: 1; padding: 0 18px; text-align: center; }
.process-icon { min-height: 50px; display: block; font-size: 37px; }
.process-number { width: 29px; height: 29px; display: grid; place-items: center; margin: 8px auto 13px; border-radius: 50%; background: var(--color-primary); color: #fff; font-size: 12px; font-weight: 800; }
.process-list h3 { margin-bottom: 8px; font-size: 15px; }
.process-list p { color: var(--color-muted); font-size: 12px; }
.deadline { width: fit-content; margin: 28px auto 0; padding: 12px 24px; border: 1px solid #e0c99f; background: #fff; font-size: 13px; }
.deadline i { margin-right: 8px; color: var(--color-primary-dark); }

.warranty { background: #151515; color: #fff; }
.warranty-main { min-height: 170px; display: grid; grid-template-columns: auto 360px 1fr; align-items: center; gap: 30px; }
.warranty-symbol { color: var(--color-primary); font-size: 82px; }
.warranty-copy h2 { margin-bottom: 8px; font-size: 23px; }
.warranty-copy p { margin: 0; color: #c9c9c9; font-size: 12px; }
.warranty ul { display: grid; grid-template-columns: repeat(3, 1fr); }
.warranty li { display: flex; align-items: center; gap: 12px; padding: 14px 24px; border-left: 1px solid #444; color: #ddd; font-size: 12px; }
.warranty li i { color: var(--color-primary); font-size: 25px; }
.warranty-note { margin: 0; padding: 12px 20px; border-top: 1px solid #3c3c3c; color: #dedede; font-size: 13px; text-align: center; }

.faq { padding: 54px 0; background: #f7f5f1; }
.faq-layout { display: grid; grid-template-columns: .62fr 1.38fr; gap: 64px; }
.faq-layout .section-heading { margin-bottom: 0; align-self: center; }
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 34px; }
.faq-item { border-top: 1px solid var(--color-border); }
.faq-item h3 { margin: 0; }
.faq-item button { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 17px 4px; border: 0; background: transparent; font-size: 13px; font-weight: 700; text-align: left; cursor: pointer; }
.faq-item button i { color: var(--color-primary-dark); transition: transform .2s ease; }
.faq-item button[aria-expanded="true"] i { transform: rotate(180deg); }
.faq-answer { padding: 0 28px 17px 4px; color: var(--color-muted); font-size: 12px; }
.faq-answer p { margin: 0; }

.contact-cta { min-height: 340px; display: grid; align-items: center; background: linear-gradient(90deg, rgba(255,255,255,.99) 0%, rgba(255,255,255,.96) 43%, rgba(255,255,255,.55) 66%, rgba(255,255,255,.08) 100%), url('../img/cta-cobertura-gourmet-ia.webp') center 57% / cover no-repeat; }
.contact-cta-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 90px; align-items: center; }
.contact-cta-grid > div:last-child { max-width: 650px; }
.contact-cta p { max-width: 480px; color: var(--color-muted); }

.site-footer { background: #171717; color: #dedede; }
.footer-grid { display: grid; grid-template-columns: 1.5fr .75fr 1fr 1.35fr; gap: 68px; padding-top: 52px; padding-bottom: 42px; }
.footer-brand img { width: 215px; height: 78px; margin-bottom: 18px; object-fit: contain; filter: invert(1); mix-blend-mode: screen; }
.footer-brand p { max-width: 340px; color: #bdbdbd; font-size: 13px; }
.site-footer h2 { margin-bottom: 20px; color: #fff; font-size: 13px; letter-spacing: .06em; text-transform: uppercase; }
.site-footer li { margin-bottom: 9px; color: #bdbdbd; font-size: 13px; }
.site-footer a:hover { color: #fff; }
.social-links { display: flex; gap: 8px; }
.social-links a { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid #555; border-radius: 50%; }
.contact-list li { display: flex; gap: 11px; align-items: flex-start; }
.contact-list i { width: 15px; margin-top: 3px; color: #e5e5e5; }
.footer-bottom { border-top: 1px solid #383838; }
.footer-bottom .container { min-height: 52px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #999; font-size: 11px; }
.footer-bottom i { color: var(--color-primary); }
.footer-bottom a { color: #ddd; }
.floating-whatsapp { position: fixed; z-index: 90; right: 22px; bottom: 22px; width: 56px; height: 56px; display: grid; place-items: center; border: 3px solid #fff; border-radius: 50%; background: #25d366; color: #fff; box-shadow: 0 8px 24px rgba(0,0,0,.26); font-size: 28px; transition: transform .2s ease; }
.floating-whatsapp:hover { transform: translateY(-3px) scale(1.03); }

body.lightbox-open { overflow: hidden; }
.lightbox { width: 100vw; max-width: none; height: 100dvh; max-height: none; margin: 0; padding: 0; border: 0; background: rgba(8,8,8,.95); color: #fff; }
.lightbox::backdrop { background: rgba(8,8,8,.95); }
.lightbox-panel { position: relative; width: 100%; height: 100%; display: grid; grid-template-columns: 80px minmax(0, 1fr) 80px; grid-template-rows: minmax(0, 1fr) auto; align-items: center; padding: 54px 22px 24px; }
.lightbox-stage { min-width: 0; height: 100%; display: grid; place-items: center; overflow: hidden; touch-action: pan-y; }
.lightbox-image { max-width: 100%; max-height: calc(100dvh - 150px); width: auto; height: auto; object-fit: contain; box-shadow: 0 20px 55px rgba(0,0,0,.42); }
.lightbox-close, .lightbox-nav { display: grid; place-items: center; border: 0; color: #fff; cursor: pointer; transition: background .2s ease, transform .2s ease; }
.lightbox-close { position: absolute; z-index: 2; top: 16px; right: 20px; width: 44px; height: 44px; border-radius: 50%; background: rgba(255,255,255,.12); font-size: 24px; }
.lightbox-close:hover { background: rgba(255,255,255,.23); transform: rotate(4deg); }
.lightbox-nav { width: 52px; height: 68px; justify-self: center; border-radius: 3px; background: rgba(255,255,255,.1); font-size: 24px; }
.lightbox-nav:hover { background: var(--color-primary); }
.lightbox-info { grid-column: 2; display: flex; justify-content: space-between; gap: 24px; padding-top: 18px; color: #ddd; font-size: 14px; }
.lightbox-info strong { color: #fff; }
.lightbox-counter { white-space: nowrap; }

@media (max-width: 1100px) {
  .site-menu { gap: 16px; font-size: 12px; }
  .nav-cta { display: none; }
  .services-layout { grid-template-columns: 1fr; }
  .service-card { padding-inline: 16px; }
  .tech-card { display: grid; grid-template-columns: 180px 1fr; gap: 25px; }
  .tech-card ul { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
  .options-strip { grid-template-columns: 1fr 1fr; }
  .options-strip article:nth-child(2) { border-right: 0; }
  .options-strip article:nth-child(-n+2) { border-bottom: 1px solid var(--color-border); }
  .video-demo-grid { grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr); gap: 42px; }
  .warranty-main { grid-template-columns: auto 1fr; padding-block: 25px; }
  .warranty ul { grid-column: 1 / -1; }
}

@media (max-width: 1050px) {
  html { scroll-padding-top: 75px; }
  .section { padding: 66px 0; }
  .topbar-inner span:nth-child(2), .topbar-inner span:nth-child(3) { display: none; }
  .main-nav { min-height: 74px; }
  .brand img { width: 160px; height: 58px; }
  .menu-toggle { display: grid; place-items: center; flex: 0 0 auto; }
  .site-menu { position: absolute; top: 100%; right: 0; left: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 10px 20px 20px; border-top: 1px solid var(--color-border); background: #fff; box-shadow: 0 18px 30px rgba(0,0,0,.16); }
  .site-menu.is-open { display: flex; }
  .site-menu > a:not(.nav-cta) { padding: 14px 8px; border-bottom: 1px solid #eee; }
  .site-menu > a:not(.nav-cta)::after { display: none; }
  .site-menu .nav-cta { display: flex; justify-content: center; margin-top: 12px; }
  .hero { min-height: 560px; background-position: 62% center; }
  .hero h1 { max-width: 590px; }
  .trust-grid { grid-template-columns: 1fr; padding: 14px 0; }
  .trust-grid article { padding: 13px 4px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.18); }
  .trust-grid article:last-child { border-bottom: 0; }
  .challenges-grid { grid-template-columns: 1fr; }
  .challenge-items { grid-template-columns: 1fr 1fr; gap: 30px 10px; }
  .service-list { grid-template-columns: 1fr 1fr; }
  .service-card, .service-card:first-child { padding: 24px 20px; border-right: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
  .service-card:nth-child(even), .service-card:last-child { border-right: 0; }
  .tech-card { grid-template-columns: 1fr; }
  .video-demo-grid { grid-template-columns: 1fr; }
  .video-demo-copy { max-width: 760px; order: -1; }
  .project-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 260px; }
  .project-tall { grid-row: auto; }
  .about-content { grid-template-columns: 1fr; }
  .about-copy { width: min(calc(100% - 72px), var(--container)); margin-inline: auto; padding: 58px 0; }
  .about-image { min-height: 460px; }
  .about-image img { min-height: 460px; }
  .process-list { grid-template-columns: repeat(3, 1fr); gap: 36px 0; }
  .process-list::before { display: none; }
  .warranty ul { grid-template-columns: 1fr; }
  .warranty li { border-top: 1px solid #444; border-left: 0; }
  .faq-layout, .contact-cta-grid { grid-template-columns: 1fr; gap: 28px; }
  .contact-cta { padding: 60px 0; background: linear-gradient(90deg, rgba(255,255,255,.97), rgba(255,255,255,.78)), url('../img/cta-cobertura-gourmet-ia.webp') 64% center / cover; }
  .footer-grid { grid-template-columns: 1.3fr 1fr; }
}

@media (max-width: 560px) {
  .container { width: min(calc(100% - 30px), var(--container)); }
  .topbar-inner { min-height: 38px; justify-content: space-between; font-size: 10px; }
  .main-nav { min-height: 70px; }
  .brand img { width: 145px; }
  .hero { min-height: 610px; background-position: 66% center; }
  .hero h1 { font-size: 39px; }
  .hero p { font-size: 16px; }
  .button-row, .button-row .btn { width: 100%; }
  .challenge-items { grid-template-columns: 1fr; gap: 36px; }
  .challenge-item { grid-template-rows: auto; padding: 0; }
  .challenge-item p { min-height: 0; }
  .challenge-item img { height: 220px; }
  .service-list { grid-template-columns: 1fr; }
  .service-card, .service-card:first-child, .service-card:nth-child(even) { padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--color-border); }
  .service-card:last-child { border-bottom: 0; }
  .tech-card ul { grid-template-columns: 1fr; }
  .video-demo { padding-block: 54px; }
  .video-demo-grid { gap: 30px; }
  .video-frame { margin-inline: -15px; }
  .video-badge { top: 10px; left: 10px; }
  .project-grid { grid-template-columns: 1fr; grid-auto-rows: 280px; }
  .project-tall { grid-row: auto; }
  .benefits-grid { grid-template-columns: 1fr; }
  .about-image { min-height: 360px; }
  .google-reviews-actions, .google-reviews-actions .btn { width: 100%; }
  .process-list { grid-template-columns: 1fr 1fr; }
  .deadline { text-align: center; }
  .warranty-main { grid-template-columns: 1fr; text-align: center; }
  .warranty-symbol { margin-top: 15px; }
  .warranty li { justify-content: center; text-align: left; }
  .faq-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom .container { flex-direction: column; align-items: flex-start; padding-block: 15px; }
  .floating-whatsapp { right: 14px; bottom: 14px; width: 52px; height: 52px; }
  .lightbox-panel { grid-template-columns: 48px minmax(0, 1fr) 48px; padding: 58px 6px 18px; }
  .lightbox-nav { width: 40px; height: 56px; font-size: 18px; }
  .lightbox-close { top: 10px; right: 10px; }
  .lightbox-image { max-height: calc(100dvh - 140px); }
  .lightbox-info { padding: 14px 6px 0; font-size: 12px; }
}

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