:root {
  --azul: #0d6efd;
  --azul-escuro: #0a1f44;
  --preto: #050b1a;
  --cinza: #b5b5b5;
  --branco: #ffffff;
  --whatsapp: #25d366;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--preto);
  color: var(--branco);
}
header {
  background: linear-gradient(90deg, var(--azul-escuro), var(--preto));
}

.navbar {
  max-width: 1300px;
  margin: auto;
  padding: 15px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 80px;
}

.logo img {
  height: 60px;
}

.menu {
  display: flex;
  gap: 40px;
  list-style: none;
}

.menu a {
  color: var(--branco);
  text-decoration: none;
  font-weight: 500;
  position: relative;
}

.menu a::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--azul);
  transition: .3s;
}

.menu a:hover::after {
  width: 100%;
}
main {
  flex: 1;
  text-align: center;
}
.slider {
  height: 70vh;
  position: relative;
  overflow: hidden;
}

.slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.slide.active {
  opacity: 1;
}

.slide-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.55);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.slide-logo {
  max-width: 180px;
  margin-bottom: 15px;
}

.slide-overlay h2 {
  font-size: 2.2rem;
}

.slide-overlay p {
  max-width: 700px;
  font-size: 1.1rem;
}
section {
  max-width: 1100px;
  margin: auto;
  padding: 80px 30px;
}

section h1,
section h2 {
  color: var(--azul);
  margin-bottom: 24px;
}
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.card {
  background: #0e162e;
  padding: 35px 25px;
  border-radius: 16px;
  cursor: pointer;
  transition: .4s;
}

.card i {
  font-size: 2.6rem;
  color: var(--azul);
  margin-bottom: 15px;
}

.card p {
  color: var(--cinza);
  opacity: 0;
  transform: translateY(20px);
  transition: .4s;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(13,110,253,.4);
}

.card:hover p {
  opacity: 1;
  transform: translateY(0);
}
@media (min-width: 1024px) {

  .cards {
    grid-template-columns: repeat(3, 1fr);
  }
  .cards .card:nth-child(1) {
    grid-column: 1;
    grid-row: 1;
  }
  .cards .card:nth-child(2) {
    grid-column: 2;
    grid-row: 1;
  }
  .cards .card:nth-child(3) {
    grid-column: 3;
    grid-row: 1;
  }
  .cards .card:nth-child(4) {
    grid-column: 2;
    grid-row: 2;
  }
}
.servico {
  margin-bottom: 90px;
}

.servico img {
  max-width: 100%;
  border-radius: 18px;
  margin: 35px 0;
}

.servico p {
  max-width: 900px;
  margin: 0 auto 18px;
  line-height: 1.7;
  color: var(--cinza);
}

.servico ul {
  max-width: 850px;
  margin: 20px auto 35px;
  padding-left: 22px;
  text-align: left;
}

.servico ul li {
  margin-bottom: 10px;
  line-height: 1.6;
}
.servico h1,
.servico h2 {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
#redes h1::before { content: "🌐"; }
#automacao h1::before { content: "🏠"; }
#seguranca h1::before { content: "🔒"; }
#condominios h1::before { content: "🏢"; }
.servico h2::before {
  content: "➜";
  color: var(--azul);
}
.contact-item {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin: 18px 0;
}

.btn-whatsapp {
  display: inline-block;
  background: var(--whatsapp);
  padding: 15px 40px;
  border-radius: 50px;
  color: white;
  text-decoration: none;
  font-weight: 600;
  margin-top: 30px;
  transition: .3s;
}

.btn-whatsapp:hover {
  transform: scale(1.05);
}
footer {
  background: #030714;
  padding: 20px;
  text-align: center;
  font-size: 0.9rem;
}
@media (max-width: 768px) {

  .navbar {
    flex-direction: column;
    gap: 10px;
  }

  .logo img {
    height: 42px;
  }

  .menu {
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
  }
}
.servico h2 {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 45px 0 20px;
  font-size: 1.5rem;
  color: var(--azul);
  text-align: center;
}
.servico h2::before {
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--azul);
}
#redes h2::before {
  content: "\f6ff";
}
#automacao h2::before {
  content: "\f1b2";
}
#seguranca h2::before {
  content: "\f023";
}
#condominios h2::before {
  content: "\f1ad";
}
@media (max-width: 768px) {
  .servico h2 {
    font-size: 1.3rem;
    gap: 10px;
    margin: 35px 0 18px;
  }

  .servico h2::before {
    font-size: 1.1rem;
  }
}
.contact-logo {
  margin: 40px 0 25px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.contact-logo img {
  width: auto;
  max-width: 120px;
  opacity: 0.95;
}
@media (max-width: 768px) {
  .contact-logo {
    margin: 30px 0 20px;
  }

  .contact-logo img {
    max-width: 100px;
  }
}
main section h1 {
  font-size: 2.2rem;
  margin-bottom: 30px;
}
.contact-item {
  font-size: 1.05rem;
  margin: 16px 0;
}
.contact-item i {
  font-size: 1.3rem;
  color: var(--azul);
}
.btn-whatsapp {
  font-size: 1rem;
}
.contact-logo {
  margin: 35px 0 25px;
}

.contact-logo img {
  max-width: 160px;
  width: auto;
  opacity: 0.95;
}
@media (max-width: 768px) {

  main section h1 {
    font-size: 1.7rem;
  }

  .contact-item {
    font-size: 0.95rem;
  }

  .contact-item i {
    font-size: 1.15rem;
  }

  .contact-logo img {
    max-width: 140px;
  }
}
@media (max-width: 768px) {

  .slide-overlay {
    justify-content: center;
    align-items: center;
    text-align: center;
  }

  .slide-overlay h2,
  .slide-overlay p {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
  }

}
@media (max-width: 768px) {
  section h1,
  section h2 {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
  }
  section h1 i,
  section h2 i {
    font-size: 1.6rem;
    margin: 0;
  }

}