/* ==== Reset & Base ==== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  font-size: 100%; /* 16px base */
}
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: #f5f5f5;
  color: #111;
  line-height: 1.5;
}

/* ==== Layout ==== */
.header {
  background: #111;
  color: #fff;
  padding: 1.5rem 2rem;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}
.logo {
  font-size: 1.75rem;
  font-weight: 600;
}
.container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
}

/* ==== Category ==== */
.category {
  margin-bottom: 3rem;
}
.category-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #333;
}

/* ==== Cards Grid ==== */
.cards {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

/* ==== Card ==== */
.card {
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,.07);
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0,0,0,.12);
}

/* ==== Icon placeholder ==== */
.card .icon {
  font-size: 2.5rem;
  margin-bottom: .75rem;
}

/* ==== Service name ==== */
.card .name {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: .5rem;
}

/* ==== Link ==== */
.card .link {
  display: inline-block;
  margin-top: .5rem;
  color: #1e40af;
  text-decoration: none;
  font-weight: 500;
}
.card .link:hover {
  text-decoration: underline;
}

/* ==== Category colors ==== */
#gerenciamento .card { border-top: 4px solid #3b82f6; }   /* azul */
#atendimento   .card { border-top: 4px solid #10b981; }   /* verde */
#inteligencia  .card { border-top: 4px solid #f59e0b; }   /* amarelo */
#armazenamento .card { border-top: 4px solid #8b5cf6; }   /* roxo */

/* ==== Responsividade ==== */
@media (max-width: 640px) {
  .header { padding: 1rem; }
  .logo { font-size: 1.4rem; }
}