:root {
  --background: #ffffff;
  --foreground: #000000;
  --black: #000000;
  --orange: #e16f00;
  --cta-orange: #a44700;
  --red: #dd1c15;
  --white: #ffffff;
  --ink-muted: #4d4d4d;
  --line: rgba(0, 0, 0, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--background); color: var(--foreground); font-family: Arial, Helvetica, sans-serif; margin: 0; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin: 0; }

.top-strip { align-items: center; background: linear-gradient(105deg, var(--black) 0%, #260504 48%, #4a1700 100%); border-bottom: 3px solid var(--orange); color: var(--white); display: flex; min-height: 42px; overflow: hidden; text-transform: uppercase; white-space: nowrap; }
.top-strip-track { align-items: center; animation: benefits-marquee 52s linear infinite; display: flex; font-size: clamp(0.72rem, 0.92vw, 0.9rem); font-weight: 900; letter-spacing: 0; width: max-content; }
.top-strip-group, .top-strip-set, .top-strip-item { align-items: center; display: flex; flex: none; }
.top-strip-set { gap: 1.35rem; padding-right: 1.35rem; }
.top-strip-item { gap: 1.35rem; }
.top-strip-item i { background: var(--orange); border-radius: 50%; box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.2); height: 9px; width: 9px; }
@keyframes benefits-marquee { to { transform: translateX(-50%); } }

.site-header { background: linear-gradient(90deg, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.6) 44%, rgba(0, 0, 0, 0.74) 100%), url("assets/hero-tubos-optimized.webp") center / cover; border-bottom: 6px solid var(--orange); min-height: min(690px, 72vh); overflow: hidden; position: relative; }
.site-header::before, .benefits-band::before { background-image: linear-gradient(rgba(255, 255, 255, 0.075) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.075) 1px, transparent 1px); background-size: 72px 72px; content: ""; inset: 0; pointer-events: none; position: absolute; }
.site-header::after { background: linear-gradient(180deg, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.45)); content: ""; inset: 0; pointer-events: none; position: absolute; }

.header-inner, .hero, .benefits-section, .about-section, .footer-inner { margin: 0 auto; max-width: 1180px; width: min(100% - 48px, 1180px); }
.header-inner { display: grid; grid-template-rows: auto 1fr; min-height: inherit; padding: 1.15rem 0 clamp(2.4rem, 6vw, 4.75rem); position: relative; z-index: 1; }
.header-nav { align-items: center; display: flex; justify-content: space-between; }
.logo { display: inline-flex; line-height: 0; }
.logo img { border-radius: 3px; height: auto; object-fit: contain; width: clamp(80px, 8.2vw, 114px); }
.site-header .logo img { filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.42)); width: clamp(128px, 11.5vw, 172px); }

.whatsapp-link, .primary-cta, .secondary-cta { align-items: center; border-radius: 6px; display: inline-flex; font-weight: 900; justify-content: center; min-height: 50px; padding: 0.9rem 1.35rem; transition: background-color 180ms ease, transform 180ms ease; }
.whatsapp-link { background: var(--red); color: var(--white); }
.site-header .whatsapp-link { font-size: clamp(0.9rem, 1.25vw, 1.1rem); min-width: 202px; }
.primary-cta, .secondary-cta { background: var(--cta-orange); color: var(--white); }
.whatsapp-link:hover { background: var(--orange); transform: translateY(-2px); }
.primary-cta:hover, .secondary-cta:hover { background: #b01711; transform: translateY(-2px); }

.header-benefit { align-self: center; display: grid; gap: 1rem; justify-items: center; padding-top: clamp(0.85rem, 2.2vw, 1.8rem); text-align: center; }
.hero-kicker { color: #ffc5a3; font-size: clamp(0.78rem, 1.1vw, 1rem); font-weight: 900; letter-spacing: 0.12em; text-transform: uppercase; }
.header-benefit strong { color: var(--white); display: grid; font-weight: 950; letter-spacing: 0; line-height: 0.82; text-shadow: 0 8px 36px rgba(0, 0, 0, 0.58); }
.headline-primary { color: var(--orange); display: flex; font-size: clamp(4.2rem, 9.3vw, 8.5rem); gap: 0.16em; justify-content: center; }
.header-benefit strong .headline-primary > span { font-size: 1em; line-height: inherit; margin: 0; }
.headline-secondary { font-size: clamp(2.75rem, 5.6vw, 5.2rem); margin-top: 0.08em; }
.header-benefit strong::after { background: linear-gradient(90deg, var(--orange), var(--white), var(--red)); content: ""; height: 4px; margin: 0.28em auto 0.03em; width: min(86%, 680px); }
.hero-cta { font-size: clamp(0.98rem, 1.35vw, 1.14rem); min-width: min(100%, 268px); }

.hero { display: grid; gap: clamp(1.35rem, 2.8vw, 2.2rem); justify-items: center; padding: clamp(4rem, 8vw, 6.8rem) 0 clamp(4.3rem, 9vw, 7.8rem); }
.products-title, .eyebrow { color: var(--red); font-size: clamp(1rem, 1.32vw, 1.22rem); font-weight: 950; letter-spacing: 0.09em; line-height: 1.15; text-align: center; text-transform: uppercase; }
.product-carousel { align-items: center; column-gap: 0.75rem; display: grid; grid-template-columns: 52px minmax(0, 1fr) 52px; padding: 0.65rem 0 0.2rem; width: 100%; }
.carousel-track { display: flex; gap: 1.1rem; grid-column: 2; grid-row: 1; min-width: 0; overflow-x: auto; padding: 0 0.5rem 1.1rem; scroll-behavior: smooth; scroll-snap-type: x mandatory; scrollbar-width: none; }
.carousel-track::-webkit-scrollbar { display: none; }
.product-card { background: var(--black); border: 1px solid rgba(0, 0, 0, 0.15); border-radius: 7px; box-shadow: 0 18px 45px rgba(0, 0, 0, 0.18); color: var(--white); flex: 0 0 clamp(245px, 27vw, 330px); height: clamp(330px, 38vw, 440px); overflow: hidden; position: relative; scroll-snap-align: start; }
.product-card img { height: 100%; object-fit: cover; opacity: 0.86; transition: transform 300ms ease; width: 100%; }
.product-card:hover img { transform: scale(1.04); }
.product-card::after { background: linear-gradient(180deg, transparent 36%, rgba(0, 0, 0, 0.88)); content: ""; inset: 0; position: absolute; }
.product-card-label { bottom: 0; display: grid; gap: 0.35rem; left: 0; padding: 1.45rem; position: absolute; right: 0; z-index: 1; }
.product-card-label span { color: var(--orange); font-size: clamp(1.05rem, 1.5vw, 1.32rem); font-weight: 950; line-height: 1; text-shadow: 0 2px 12px rgba(0, 0, 0, 0.9); }
.product-card-label h2 { font-size: clamp(1.72rem, 3.15vw, 2.42rem); font-weight: 950; letter-spacing: 0; line-height: 0.98; }
.carousel-controls { align-items: center; display: grid; grid-column: 1 / -1; grid-row: 1; grid-template-columns: 52px minmax(0, 1fr) 52px; pointer-events: none; z-index: 3; }
.carousel-control { align-items: center; background: var(--black); border: 2px solid var(--white); border-radius: 50%; box-shadow: 0 6px 22px rgba(0, 0, 0, 0.42); color: var(--white); cursor: pointer; display: inline-flex; font-size: 1.55rem; height: 50px; justify-content: center; justify-self: center; padding: 0; pointer-events: auto; transition: background-color 180ms ease, border-color 180ms ease, opacity 180ms ease; width: 50px; }
.carousel-control:last-child { grid-column: 3; }
.carousel-control span { align-items: center; display: flex; height: 100%; justify-content: center; line-height: 1; width: 100%; }
.carousel-control:hover { background: var(--orange); border-color: var(--orange); }
.carousel-control:focus-visible { outline: 3px solid var(--red); outline-offset: 3px; }
.carousel-control:disabled { cursor: default; opacity: 0.35; }
.product-whatsapp-cta { font-size: clamp(1rem, 1.35vw, 1.16rem); min-height: 58px; min-width: min(100%, 292px); }

.benefits-band { background: linear-gradient(116deg, #250e04 0%, #151515 42%, #001629 100%); border-bottom: 5px solid var(--orange); border-top: 5px solid var(--orange); overflow: hidden; position: relative; }
.benefits-section { display: grid; gap: clamp(1.9rem, 3.5vw, 2.8rem); padding: clamp(4rem, 8vw, 6.8rem) 0; position: relative; z-index: 1; }
.section-heading { display: grid; justify-items: center; }
.benefits-section .eyebrow { color: var(--white); font-size: clamp(1.5rem, 3.1vw, 2.55rem); letter-spacing: 0; text-transform: none; }
.benefit-grid { display: grid; gap: 1rem; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.benefit-card { background: rgba(255, 255, 255, 0.075); border: 1px solid rgba(255, 255, 255, 0.35); border-radius: 7px; color: var(--white); display: grid; gap: 0.85rem; min-height: 226px; padding: clamp(1.35rem, 2.5vw, 1.85rem); }
.benefit-card span { color: var(--orange); font-size: 1.05rem; font-weight: 950; }
.benefit-card h3 { font-size: clamp(1.45rem, 2.35vw, 2rem); font-weight: 950; line-height: 1.05; }
.benefit-card p { color: rgba(255, 255, 255, 0.83); font-size: 1rem; font-weight: 600; line-height: 1.48; }
.benefits-section .secondary-cta { font-size: clamp(1rem, 1.32vw, 1.17rem); justify-self: center; min-height: 58px; min-width: min(100%, 320px); }

.about-section { align-items: center; display: grid; gap: clamp(2rem, 6vw, 5.5rem); grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr); padding: clamp(4.3rem, 9vw, 7.5rem) 0; }
.about-image { aspect-ratio: 1 / 1; background: var(--black); border: 1px solid var(--line); border-radius: 7px; box-shadow: 0 22px 52px rgba(0, 0, 0, 0.18); justify-self: center; max-width: 400px; overflow: hidden; width: 100%; }
.about-image img { height: 100%; object-fit: cover; object-position: center; width: 100%; }
.about-copy { display: grid; gap: 1rem; }
.about-copy .eyebrow { justify-self: start; text-align: left; }
.about-copy h2 { font-size: clamp(2.65rem, 5vw, 4.5rem); font-weight: 950; letter-spacing: 0; line-height: 0.92; }
.about-copy p { color: var(--ink-muted); font-size: clamp(1.1rem, 1.5vw, 1.32rem); font-weight: 400; line-height: 1.56; max-width: 680px; }

.footer { background: var(--black); border-top: 5px solid var(--red); color: var(--white); }
.footer-inner { align-items: center; display: grid; gap: clamp(1.5rem, 5vw, 4rem); grid-template-columns: repeat(3, minmax(0, 1fr)); justify-items: center; padding: 2.75rem 0; text-align: center; }
.footer-inner .logo img { width: clamp(88px, 8vw, 118px); }
address, .footer-contact { color: rgba(255, 255, 255, 0.78); display: grid; font-style: normal; gap: 0.35rem; line-height: 1.45; }
address strong, .footer-contact strong, .footer a { color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.13); color: rgba(255, 255, 255, 0.65); font-size: 0.86rem; font-weight: 800; padding: 1rem; text-align: center; }

.benefits-band, .about-section, .footer { content-visibility: auto; }
.benefits-band { contain-intrinsic-size: 710px; }
.about-section { contain-intrinsic-size: 760px; }
.footer { contain-intrinsic-size: 290px; }

@media (max-width: 820px) {
  .header-inner, .hero, .benefits-section, .about-section, .footer-inner { width: min(100% - 32px, 1180px); }
  .site-header { min-height: 580px; }
  .benefit-grid, .footer-inner { grid-template-columns: 1fr; }
  .benefit-card { min-height: 0; }
  .about-section { grid-template-columns: 1fr; text-align: center; }
  .about-copy { justify-items: center; }
  .about-copy .eyebrow { justify-self: center; text-align: center; }
}

@media (max-width: 520px) {
  .top-strip { min-height: 38px; }
  .top-strip-track { font-size: 0.68rem; }
  .header-inner, .hero, .benefits-section, .about-section, .footer-inner { width: min(100% - 24px, 1180px); }
  .site-header { min-height: 560px; }
  .site-header .logo img { width: 122px; }
  .site-header .whatsapp-link { min-width: 0; padding: 0.78rem 0.88rem; }
  .headline-primary { display: grid; font-size: clamp(3.3rem, 16vw, 4.6rem); gap: 0.3em; line-height: 0.78; }
  .headline-secondary { font-size: clamp(1.62rem, 7.4vw, 2.18rem); margin-top: 0.28em; }
  .product-carousel, .carousel-controls { grid-template-columns: 44px minmax(0, 1fr) 44px; }
  .carousel-control { font-size: 1.35rem; height: 42px; width: 42px; }
  .product-card { flex-basis: 78vw; height: 355px; }
  .about-copy { order: 1; }
  .about-image { max-width: 340px; order: 2; }
}

@media (prefers-reduced-motion: reduce) {
  .top-strip-track { animation: none; }
  .carousel-track { scroll-behavior: auto; }
}