/* ============================================
   HR Metal — Folha de estilos
   Paleta: preto, branco, cinza escuro, prata,
   aço escovado como detalhe (botões/divisores).
   ============================================ */

:root {
  --color-black: #111111;
  --color-white: #ffffff;
  --color-dark-gray: #2b2b2b;
  --color-gray: #6b6b6b;
  --color-light-gray: #e8e8e8;
  --color-silver: #c0c0c0;
  --color-steel: linear-gradient(135deg, #8e8e8e, #d9d9d9, #8e8e8e);

  --font-base: 'Segoe UI', Arial, Helvetica, sans-serif;

  --max-width: 1140px;
  --header-height: 76px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: var(--color-black);
  background-color: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Utilidades ===== */

.section-title {
  font-size: 2rem;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.5px;
  color: var(--color-black);
}

.divider {
  width: 70px;
  height: 3px;
  margin: 16px auto 40px;
  background: linear-gradient(90deg, #9a9a9a, #dedede, #9a9a9a);
}

.btn {
  display: inline-block;
  padding: 16px 36px;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-decoration: none;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn--primary {
  background: linear-gradient(135deg, #8e8e8e, #d9d9d9, #8e8e8e);
  color: var(--color-black);
  border: 1px solid var(--color-dark-gray);
}

.btn--primary:hover {
  background: var(--color-dark-gray);
  color: var(--color-white);
  border-color: var(--color-silver);
}

.btn--whatsapp {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 18px 42px;
  font-size: 1.05rem;
}

.btn--whatsapp:hover {
  background: linear-gradient(135deg, #8e8e8e, #d9d9d9, #8e8e8e);
  color: var(--color-black);
}

/* ===== Cabeçalho / Menu fixo ===== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-light-gray);
  z-index: 1000;
}

.navbar {
  max-width: var(--max-width);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.navbar__brand {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--color-black);
  text-decoration: none;
}

.navbar__menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.navbar__menu a {
  color: var(--color-dark-gray);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: color 0.2s ease;
}

.navbar__menu a:hover {
  color: var(--color-black);
}

.navbar__cta {
  border: 1px solid var(--color-black);
  padding: 8px 18px;
  border-radius: 2px;
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
}

.navbar__toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-black);
}

/* ===== Topo com logo ===== */

.top-hero {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 30px;
  text-align: center;
  background-color: #000000;
}

.top-hero__content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.top-hero__logo {
  max-width: 320px;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.top-hero__tagline {
  margin-top: 20px;
  font-size: 1.05rem;
  font-style: italic;
  letter-spacing: 1px;
  color: var(--color-gray);
}

/* ===== Seção principal ===== */

.hero {
  padding: 30px 0 80px;
  background-color: #000000;
  border-bottom: 1px solid var(--color-light-gray);
}

.hero__content {
  max-width: 760px;
  text-align: center;
  margin: 0 auto;
}

.hero__title {
  font-size: 2.3rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 20px;
  line-height: 1.3;
}

.hero__subtitle {
  font-size: 1.05rem;
  color: var(--color-silver);
  margin-bottom: 32px;
}

/* ===== Sobre ===== */

.about {
  padding: 80px 0;
}

.about__text {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
  font-size: 1.05rem;
  color: var(--color-dark-gray);
}

/* ===== Serviços ===== */

.services {
  padding: 80px 0;
  background-color: #fafafa;
  border-top: 1px solid var(--color-light-gray);
  border-bottom: 1px solid var(--color-light-gray);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-light-gray);
  border-radius: 4px;
  padding: 32px 20px;
  text-align: center;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.service-card:hover {
  background-color: var(--color-black);
  border-color: var(--color-black);
  transform: translateY(-3px);
}

.service-card__icon {
  width: 44px;
  height: 44px;
  color: var(--color-dark-gray);
  margin-bottom: 16px;
  transition: color 0.2s ease;
}

.service-card:hover .service-card__icon {
  color: var(--color-silver);
}

.service-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-black);
  transition: color 0.2s ease;
}

.service-card:hover h3 {
  color: var(--color-white);
}

/* ===== Por que escolher ===== */

.why {
  padding: 80px 0;
}

.why__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.why-card {
  text-align: center;
  padding: 32px 20px;
  border: 1px solid var(--color-light-gray);
  border-radius: 4px;
}

.why-card__check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background-color: #000000;
  color: var(--color-white);
  margin-bottom: 16px;
}

.why-card__check svg {
  width: 22px;
  height: 22px;
}

.why-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-black);
}

/* ===== Contato ===== */

.contact {
  padding: 80px 0;
  background-color: #fafafa;
  border-top: 1px solid var(--color-light-gray);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.contact__item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-light-gray);
}

.contact__item:first-child {
  padding-top: 0;
}

.contact__item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.contact__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 6px;
}

.contact__value {
  font-size: 1rem;
  color: var(--color-dark-gray);
}

.contact__value a {
  color: var(--color-black);
  text-decoration: none;
  border-bottom: 1px solid var(--color-silver);
}

.contact__icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-dark-gray);
}

.contact__cta {
  text-align: center;
  padding: 40px 24px;
  border: 1px solid var(--color-light-gray);
  border-radius: 4px;
  background-color: var(--color-white);
}

.contact__cta-text {
  margin-bottom: 20px;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-black);
}

/* ===== Rodapé ===== */

.site-footer {
  background-color: var(--color-black);
  color: var(--color-light-gray);
  padding: 48px 0 24px;
  text-align: center;
}

.site-footer__logo {
  max-width: 120px;
  width: 100%;
  height: auto;
  margin-bottom: 20px;
  border-radius: 4px;
}

.site-footer__info p {
  font-size: 0.9rem;
  color: var(--color-silver);
  margin-bottom: 8px;
}

.site-footer__social a {
  color: var(--color-silver);
  text-decoration: none;
}

.site-footer__social a:hover {
  color: var(--color-white);
}

.site-footer__copy {
  margin-top: 24px;
  font-size: 0.8rem;
  color: var(--color-gray);
  border-top: 1px solid var(--color-dark-gray);
  padding-top: 20px;
}

/* ===== Responsivo ===== */

@media (max-width: 900px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .why__grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 700px) {
  .navbar__toggle {
    display: flex;
  }

  .navbar__menu {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-light-gray);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .navbar__menu.is-open {
    max-height: 320px;
  }

  .navbar__menu li {
    width: 100%;
    padding: 14px 24px;
    border-bottom: 1px solid var(--color-light-gray);
  }

  .navbar__cta {
    display: inline-block;
    border: 1px solid var(--color-black);
  }

  .services__grid {
    grid-template-columns: 1fr;
  }

  .hero__title {
    font-size: 1.8rem;
  }

  .section-title {
    font-size: 1.6rem;
  }
}