/* ===== Guarubber Pneus — estilos (mobile primeiro) ===== */
:root {
  --asfalto: #111316;
  --grafite: #1c1f24;
  --grafite-2: #262a31;
  --laranja: #ff7a1a;
  --laranja-claro: #ff9a4d;
  --laranja-texto: #b84a00;   /* laranja para texto sobre fundo claro (AA) */
  --concreto: #f3f1ed;
  --branco: #ffffff;
  --texto: #15171a;
  --texto-suave: #4a4f57;
  --texto-escuro-suave: #c3c8cf; /* texto secundário sobre fundo escuro */
  --borda: #e2ded6;
  --radius: 12px;
  --shadow: 0 20px 44px -24px rgba(0, 0, 0, .45);
  --t: .25s ease;
  --header-h: 68px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: var(--texto);
  background: var(--branco);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { font-family: 'Barlow Condensed', 'Arial Narrow', sans-serif; line-height: 1.08; letter-spacing: .005em; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.text-accent { color: var(--laranja); }

:focus-visible { outline: 3px solid var(--laranja); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 300;
  background: var(--laranja); color: var(--asfalto); font-weight: 700;
  padding: 10px 16px; border-radius: 8px; transition: top var(--t);
}
.skip-link:focus { top: 12px; }

/* ===== Reveal ===== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ===== Botões ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 24px; border-radius: 8px;
  font-family: 'Inter', sans-serif; font-weight: 700; font-size: 15px; line-height: 1.2;
  transition: var(--t); text-align: center; cursor: pointer; border: 2px solid transparent;
}
.btn--primary { background: var(--laranja); color: var(--asfalto); }
.btn--primary:hover { background: var(--laranja-claro); transform: translateY(-2px); box-shadow: 0 12px 26px -10px rgba(255, 122, 26, .7); }
.btn--outline { color: var(--branco); border-color: rgba(255, 255, 255, .6); background: rgba(255, 255, 255, .06); }
.btn--outline:hover { border-color: var(--laranja); color: var(--laranja); }
.btn--dark { background: var(--asfalto); color: var(--branco); }
.btn--dark:hover { background: var(--grafite-2); transform: translateY(-2px); }
.btn--sm { padding: 10px 16px; font-size: 14px; }
.btn--lg { padding: 16px 26px; font-size: 16px; }

.eyebrow {
  display: inline-block; margin-bottom: 16px;
  font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--laranja); padding-left: 34px; position: relative;
}
.eyebrow::before {
  content: ""; position: absolute; left: 0; top: 50%; width: 24px; height: 3px;
  background: currentColor; transform: translateY(-50%); border-radius: 2px;
}
.eyebrow--dark { color: var(--laranja-texto); }

.section-title { font-size: clamp(2rem, 6vw, 3rem); font-weight: 800; margin-bottom: 16px; color: var(--asfalto); text-transform: uppercase; }
.section-title--light { color: var(--branco); }
.section-text { color: var(--texto-suave); max-width: 600px; margin-bottom: 14px; }
.section-text--light { color: var(--texto-escuro-suave); }
.section-head { max-width: 680px; margin-bottom: 40px; }

/* ===== Header ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  background: rgba(17, 19, 22, .55);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
  transition: background var(--t), box-shadow var(--t);
}
.header.is-scrolled, .header.menu-open { background: rgba(17, 19, 22, .97); box-shadow: 0 8px 24px -12px rgba(0, 0, 0, .6); }
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: var(--header-h); }
.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand__logo { height: 38px; width: auto; }

.nav { display: none; }
.nav__link { color: rgba(255, 255, 255, .86); font-weight: 600; font-size: 15px; transition: var(--t); }
.nav__link:hover { color: var(--laranja); }

.header__actions { display: flex; align-items: center; gap: 12px; }
.header__cta { display: none; }

.nav__toggle {
  display: flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 10px; background: none; border: 0; cursor: pointer;
}
.nav__toggle span { display: block; width: 24px; height: 2.5px; background: var(--branco); border-radius: 2px; transition: var(--t); }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

.nav.is-open {
  display: flex; flex-direction: column; gap: 4px;
  position: absolute; top: 100%; left: 0; right: 0;
  background: var(--asfalto); padding: 12px 20px 22px;
  border-bottom: 3px solid var(--laranja);
}
.nav.is-open .nav__link { padding: 12px 0; border-bottom: 1px solid rgba(255, 255, 255, .08); font-size: 17px; }
.nav__cta-mobile { margin-top: 14px; }

/* ===== Hero ===== */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center;
  padding: calc(var(--header-h) + 40px) 0 88px;
  color: var(--branco); background: var(--asfalto);
}
.hero__bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; z-index: -2; }
.hero__overlay {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(17, 19, 22, .72) 0%, rgba(17, 19, 22, .82) 55%, rgba(17, 19, 22, .96) 100%);
}
.hero__content { max-width: 760px; }
.hero__title { font-size: clamp(2.6rem, 11vw, 5rem); font-weight: 800; text-transform: uppercase; margin-bottom: 20px; }
.hero__lead { font-size: 17px; color: #dde1e6; max-width: 600px; margin-bottom: 30px; }
.hero__actions { display: flex; flex-direction: column; gap: 12px; margin-bottom: 30px; }
.hero__actions .btn { width: 100%; }
.hero__tags { display: flex; flex-wrap: wrap; gap: 8px; }
.hero__tags li {
  font-size: 13px; font-weight: 600; color: #e6e9ed;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .18);
  padding: 7px 12px; border-radius: 6px;
}
.hero__scroll {
  display: none;
  position: absolute; left: 50%; bottom: 20px; transform: translateX(-50%);
  width: 44px; height: 44px; align-items: center; justify-content: center;
  color: var(--branco); border: 1.5px solid rgba(255, 255, 255, .35); border-radius: 50%;
  animation: bob 2.4s ease-in-out infinite;
}
.hero__scroll:hover { border-color: var(--laranja); color: var(--laranja); }
@keyframes bob { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 6px); } }
@media (prefers-reduced-motion: reduce) { .hero__scroll { animation: none; } }

/* ===== Faixa ===== */
.strip { background: var(--laranja); color: var(--asfalto); padding: 34px 0; }
.strip__grid { display: grid; gap: 22px; }
.strip__item { display: flex; gap: 14px; align-items: flex-start; }
.strip__num { font-family: 'Barlow Condensed', sans-serif; font-weight: 800; font-size: 30px; line-height: 1; opacity: .9; }
.strip__title { font-size: 24px; font-weight: 800; text-transform: uppercase; margin-bottom: 4px; }
.strip__item p { font-size: 15px; font-weight: 500; }

/* ===== Sobre ===== */
.sobre { background: var(--concreto); padding: 72px 0; }
.sobre__grid { display: grid; gap: 40px; align-items: center; }
.sobre__image { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); aspect-ratio: 4 / 3; }
.sobre__image img { width: 100%; height: 100%; object-fit: cover; }
.sobre__badge {
  position: absolute; left: 14px; bottom: 14px;
  background: var(--asfalto); color: var(--branco);
  font-family: 'Barlow Condensed', sans-serif; font-weight: 700; font-size: 17px; letter-spacing: .04em; text-transform: uppercase;
  padding: 8px 14px; border-radius: 6px; border-left: 4px solid var(--laranja);
}
.sobre__list { display: grid; gap: 10px; margin: 22px 0 28px; }
.sobre__list li { display: flex; gap: 10px; align-items: flex-start; font-weight: 600; color: var(--texto); }
.sobre__list svg { color: var(--laranja-texto); flex-shrink: 0; margin-top: 3px; }

/* ===== Produtos ===== */
.produtos { background: var(--asfalto); padding: 72px 0; }
.cards-grid { display: grid; gap: 20px; }
.product-card {
  background: var(--grafite); border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius); overflow: hidden; transition: var(--t);
  display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); border-color: rgba(255, 122, 26, .55); }
.product-card__image { aspect-ratio: 4 / 3; overflow: hidden; background: var(--grafite-2); }
.product-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.product-card:hover .product-card__image img { transform: scale(1.05); }
.product-card__body { padding: 22px 22px 26px; }
.product-card__tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--laranja); margin-bottom: 8px; }
.product-card h3 { color: var(--branco); font-size: 26px; font-weight: 800; text-transform: uppercase; margin-bottom: 8px; }
.product-card p { color: var(--texto-escuro-suave); font-size: 15px; }

/* ===== Para quem ===== */
.publico { background: var(--branco); padding: 72px 0 24px; }
.publico__grid { display: grid; gap: 20px; }
.publico__card {
  background: var(--concreto); border-radius: var(--radius); padding: 28px 24px;
  border-top: 4px solid var(--laranja);
}
.publico__card h3 { font-size: 28px; font-weight: 800; text-transform: uppercase; margin-bottom: 10px; color: var(--asfalto); }
.publico__card p { color: var(--texto-suave); margin-bottom: 18px; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--laranja-texto); border-bottom: 2px solid transparent; padding: 4px 0; transition: var(--t); }
.link-arrow:hover { border-bottom-color: currentColor; gap: 12px; }

/* ===== Diferenciais ===== */
.diferenciais { background: var(--branco); padding: 56px 0 72px; }
.diff-grid { display: grid; gap: 20px; }
.diff-card { padding: 28px 24px; border-radius: var(--radius); border: 1px solid var(--borda); transition: var(--t); background: var(--branco); }
.diff-card:hover { box-shadow: var(--shadow); border-color: transparent; transform: translateY(-4px); }
.diff-card__icon {
  width: 54px; height: 54px; border-radius: 10px; margin-bottom: 18px;
  background: var(--asfalto); color: var(--laranja);
  display: flex; align-items: center; justify-content: center;
}
.diff-card h3 { font-size: 25px; font-weight: 800; text-transform: uppercase; margin-bottom: 8px; color: var(--asfalto); }
.diff-card p { color: var(--texto-suave); font-size: 15px; }

.steps-wrap { margin-top: 44px; background: var(--asfalto); color: var(--branco); border-radius: var(--radius); padding: 30px 24px; }
.steps-title { font-size: 28px; font-weight: 800; text-transform: uppercase; margin-bottom: 20px; }
.steps { display: grid; gap: 18px; counter-reset: none; }
.step { display: flex; gap: 14px; align-items: flex-start; }
.step__number {
  flex-shrink: 0; width: 40px; height: 40px; border-radius: 50%;
  background: var(--laranja); color: var(--asfalto);
  font-family: 'Barlow Condensed', sans-serif; font-weight: 800; font-size: 22px;
  display: flex; align-items: center; justify-content: center;
}
.step strong { display: block; font-size: 17px; margin-bottom: 2px; }
.step span { color: var(--texto-escuro-suave); font-size: 15px; }

/* ===== CTA faixa ===== */
.cta-band { position: relative; isolation: isolate; overflow: hidden; padding: 84px 0; color: var(--branco); background: var(--asfalto); }
.cta-band__bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.cta-band__overlay { position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(17, 19, 22, .95) 0%, rgba(17, 19, 22, .85) 60%, rgba(17, 19, 22, .7) 100%); }
.cta-band__content { max-width: 760px; }
.cta-band h2 { font-size: clamp(2.2rem, 8vw, 3.6rem); font-weight: 800; text-transform: uppercase; margin-bottom: 14px; }
.cta-band p { color: #dde1e6; font-size: 17px; margin-bottom: 28px; max-width: 560px; }

/* ===== Contato ===== */
.contato { background: var(--grafite); padding: 72px 0; }
.contato__grid { display: grid; gap: 36px; align-items: center; }
.contact-list { display: grid; gap: 20px; margin: 26px 0 30px; }
.contact-list li { display: flex; gap: 14px; align-items: flex-start; }
.contact-list__icon {
  width: 42px; height: 42px; flex-shrink: 0; border-radius: 10px;
  background: rgba(255, 122, 26, .14); color: var(--laranja);
  display: flex; align-items: center; justify-content: center;
}
.contact-list div { min-width: 0; }
.contact-list strong { display: block; color: var(--branco); font-size: 15px; margin-bottom: 2px; }
.contact-list div > span { display: block; color: var(--texto-escuro-suave); font-size: 15px; }
.contact-list a { color: var(--laranja); font-weight: 600; font-size: 15px; overflow-wrap: anywhere; }
.contact-list a:hover { text-decoration: underline; }
.contact-list__link { display: inline-block; margin-top: 4px; }
.contato__actions { display: flex; flex-wrap: wrap; gap: 12px; }

.contato__card {
  background: var(--asfalto); border: 1px solid rgba(255, 255, 255, .12);
  border-top: 4px solid var(--laranja); border-radius: var(--radius);
  padding: 28px 24px; box-shadow: var(--shadow);
}
.contato__card h3 { color: var(--branco); font-size: 26px; font-weight: 700; text-transform: uppercase; letter-spacing: .02em; margin-bottom: 6px; }
.contato__card > p { color: var(--texto-escuro-suave); font-size: 15px; margin-bottom: 20px; }
.checklist { display: grid; gap: 16px; margin-bottom: 26px; counter-reset: item; }
.checklist li { position: relative; padding-left: 44px; counter-increment: item; }
.checklist li::before {
  content: counter(item); position: absolute; left: 0; top: 0;
  width: 30px; height: 30px; border-radius: 8px;
  background: rgba(255, 122, 26, .14); color: var(--laranja);
  font-weight: 700; font-size: 15px; display: flex; align-items: center; justify-content: center;
}
.checklist strong { display: block; color: var(--branco); font-size: 15px; }
.checklist span { display: block; color: var(--texto-escuro-suave); font-size: 14px; }

/* ===== Footer ===== */
.footer { background: var(--asfalto); color: var(--texto-escuro-suave); padding: 60px 0 0; border-top: 4px solid var(--laranja); }
.footer__grid { display: grid; gap: 36px; padding-bottom: 40px; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.footer__logo { height: 44px; width: auto; margin-bottom: 16px; }
.footer__brand p { font-size: 15px; max-width: 360px; }
.footer__col { display: flex; flex-direction: column; gap: 10px; }
.footer__col h4 { color: var(--branco); font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; margin-bottom: 4px; }
.footer__col a, .footer__col span { font-size: 15px; color: var(--texto-escuro-suave); overflow-wrap: anywhere; }
.footer__col a:hover { color: var(--laranja); }
.footer__bottom { padding: 22px 20px 90px; font-size: 13px; text-align: center; color: #9aa1aa; }

/* ===== Botão flutuante ===== */
.float-btn {
  position: fixed; right: 18px; bottom: 18px; z-index: 150;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--laranja); color: var(--asfalto);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 12px 26px -8px rgba(0, 0, 0, .55); transition: var(--t);
}
.float-btn:hover { transform: scale(1.08); background: var(--laranja-claro); }

/* ===== Tablet ===== */
@media (min-width: 640px) {
  .container { padding: 0 28px; }
  .hero__actions { flex-direction: row; flex-wrap: wrap; }
  .hero__actions .btn { width: auto; }
  .hero__scroll { display: flex; }
  .strip__grid { grid-template-columns: repeat(3, 1fr); }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .publico__grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer__bottom { padding-bottom: 26px; }
}

/* ===== Desktop ===== */
@media (min-width: 960px) {
  :root { --header-h: 76px; }
  .brand__logo { height: 44px; }
  .nav { display: flex; gap: 30px; }
  .nav__cta-mobile { display: none; }
  .nav__toggle { display: none; }
  .header__cta { display: inline-flex; }
  .sobre, .produtos, .contato { padding: 100px 0; }
  .publico { padding-top: 100px; }
  .diferenciais { padding-bottom: 100px; }
  .cta-band { padding: 110px 0; }
  .sobre__grid { grid-template-columns: .9fr 1.1fr; gap: 64px; }
  .sobre__image { aspect-ratio: 4 / 5; }
  .cards-grid { grid-template-columns: repeat(3, 1fr); }
  .diff-grid { grid-template-columns: repeat(3, 1fr); }
  .contato__grid { grid-template-columns: 1fr 1fr; gap: 56px; }
  .contato__card { padding: 36px 34px; }
  .hero__overlay {
    background:
      linear-gradient(90deg, rgba(17, 19, 22, .94) 0%, rgba(17, 19, 22, .8) 45%, rgba(17, 19, 22, .32) 100%),
      linear-gradient(180deg, rgba(17, 19, 22, .2) 60%, rgba(17, 19, 22, .85) 100%);
  }
}