:root {
  --vermelho: #d60000;
  --vermelho-escuro: #a90000;
  --preto: #101010;
  --cinza-claro: #f4f4f4;
  --cinza: #666666;
  --branco: #ffffff;
  --largura: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--preto);
  background: var(--branco);
  line-height: 1.6;
}

.container {
  width: min(calc(100% - 40px), var(--largura));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(16, 16, 16, 0.98);
  border-bottom: 1px solid #292929;
}

.header-content {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.brand {
  display: inline-flex;
  gap: 7px;
  color: var(--branco);
  text-decoration: none;
  font-size: 23px;
  font-weight: 800;
  letter-spacing: 1px;
}

.brand-equis {
  color: var(--vermelho);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.main-nav a {
  color: #dddddd;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
}

.main-nav a:hover {
  color: var(--branco);
}

.main-nav .nav-contact {
  padding: 10px 18px;
  color: var(--branco);
  background: var(--vermelho);
  border-radius: 6px;
}

.hero {
  padding: 105px 0;
  background:
    radial-gradient(circle at 85% 20%, rgba(214, 0, 0, 0.15), transparent 30%),
    linear-gradient(135deg, #ffffff, #eeeeee);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 75px;
}

.hero-label,
.section-label {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--vermelho);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  max-width: 720px;
  font-size: clamp(44px, 5.5vw, 72px);
  line-height: 1.03;
  letter-spacing: -2px;
}

.hero h1 span {
  display: block;
  color: var(--vermelho);
}

.hero-content > p {
  max-width: 650px;
  margin: 26px 0 0;
  color: #404040;
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 13px 23px;
  border: 2px solid transparent;
  border-radius: 7px;
  text-decoration: none;
  font-weight: 700;
  transition: 0.2s;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--branco);
  background: var(--vermelho);
}

.button-primary:hover {
  background: var(--vermelho-escuro);
}

.button-secondary {
  color: var(--preto);
  border-color: var(--preto);
}

.button-secondary:hover {
  color: var(--branco);
  background: var(--preto);
}

.hero-panel {
  padding: 28px;
  color: var(--branco);
  background: var(--preto);
  border-radius: 16px;
  box-shadow: 0 26px 65px rgba(0, 0, 0, 0.18);
}

.hero-panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 20px;
  color: #cccccc;
  border-bottom: 1px solid #333333;
  font-size: 14px;
  font-weight: 700;
}

.status-dot {
  width: 10px;
  height: 10px;
  background: #18bd67;
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(24, 189, 103, 0.12);
}

.hero-panel-item {
  padding: 21px 0;
  border-bottom: 1px solid #303030;
}

.hero-panel-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.hero-panel-item strong,
.hero-panel-item span {
  display: block;
}

.hero-panel-item strong {
  margin-bottom: 4px;
  font-size: 18px;
}

.hero-panel-item span {
  color: #aaaaaa;
  font-size: 14px;
}

.section {
  padding: 95px 0;
}

.section-light {
  background: var(--cinza-claro);
}

.section-dark {
  color: var(--branco);
  background: var(--preto);
}

.section-grid,
.technology-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.section h2 {
  margin: 0;
  max-width: 720px;
  font-size: clamp(34px, 4vw, 50px);
  line-height: 1.12;
  letter-spacing: -1px;
}

.section-text {
  color: #494949;
  font-size: 18px;
}

.section-text p:first-child {
  margin-top: 0;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 45px;
}

.section-heading > p {
  max-width: 650px;
  margin: 20px 0 0;
  color: var(--cinza);
  font-size: 18px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  min-height: 290px;
  padding: 32px;
  background: var(--branco);
  border: 1px solid #e1e1e1;
  border-top: 4px solid var(--vermelho);
  border-radius: 12px;
  transition: 0.25s;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.08);
}

.card-number {
  margin-bottom: 35px;
  color: var(--vermelho);
  font-size: 14px;
  font-weight: 800;
}

.card h3 {
  margin: 0 0 14px;
  font-size: 23px;
}

.card p {
  margin: 0;
  color: var(--cinza);
}

.section-label-light {
  color: #ff4040;
}

.section-dark p {
  color: #c4c4c4;
  font-size: 18px;
}

.text-link {
  display: inline-block;
  margin-top: 22px;
  color: var(--branco);
  font-weight: 700;
  text-underline-offset: 5px;
}

.technology-list {
  border-top: 1px solid #3a3a3a;
}

.technology-item {
  padding: 23px 0;
  border-bottom: 1px solid #3a3a3a;
}

.technology-item strong,
.technology-item span {
  display: block;
}

.technology-item strong {
  margin-bottom: 5px;
  font-size: 18px;
}

.technology-item span {
  color: #aaaaaa;
}

.benefits {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 45px;
  background: #dddddd;
  border: 1px solid #dddddd;
}

.benefit {
  padding: 30px;
  background: var(--branco);
}

.benefit h3 {
  margin: 0 0 12px;
}

.benefit p {
  margin: 0;
  color: var(--cinza);
  font-size: 15px;
}

.contact-section {
  padding-top: 40px;
}

.contact-box {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
  padding: 55px;
  background: var(--cinza-claro);
  border-left: 6px solid var(--vermelho);
  border-radius: 10px;
}

.contact-box p {
  color: #444444;
  font-size: 18px;
}

.contact-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.contact-actions span {
  color: #555555;
  font-size: 14px;
}

.site-footer {
  padding: 65px 0 25px;
  color: #c7c7c7;
  background: #080808;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 45px;
}

.footer-grid p {
  max-width: 360px;
  color: #8f8f8f;
}

.footer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 9px;
}

.footer-links strong {
  margin-bottom: 7px;
  color: var(--branco);
}

.footer-links a {
  color: #9c9c9c;
  text-decoration: none;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 25px;
  padding-top: 25px;
  border-top: 1px solid #252525;
  color: #777777;
  font-size: 14px;
}

.footer-bottom a {
  color: #aaaaaa;
  text-decoration: none;
}

@media (max-width: 950px) {
  .header-content {
    padding: 18px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .main-nav {
    flex-wrap: wrap;
    gap: 12px 20px;
  }

  .hero-grid,
  .section-grid,
  .technology-grid,
  .contact-box {
    grid-template-columns: 1fr;
  }

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

  .benefits {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 650px) {
  .container {
    width: calc(100% - 28px);
  }

  .site-header {
    position: relative;
  }

  .hero {
    padding: 70px 0;
  }

  .hero h1 {
    font-size: 43px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .section {
    padding: 70px 0;
  }

  .benefits,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .contact-box {
    padding: 30px 24px;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 9px;
  background: transparent;
  border: 1px solid #444444;
  border-radius: 6px;
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background: #ffffff;
}

@media (max-width: 950px) {
  .header-content {
    min-height: 70px;
    padding: 0;
    flex-direction: row;
    align-items: center;
  }

  .menu-button {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    padding: 20px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #101010;
    border-top: 1px solid #303030;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
  }

  .main-nav.menu-open {
    display: flex;
  }

  .main-nav a {
    padding: 14px 0;
    border-bottom: 1px solid #2d2d2d;
  }

  .main-nav .nav-contact {
    margin-top: 12px;
    padding: 12px 16px;
    text-align: center;
    border-bottom: 0;
  }
}