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

/* VARIÁVEIS */
:root {
  --bg-dark: #0b0f14;
  --bg-card: #111827;
  --primary: #1e3a8a;
  --secondary: #2563eb;
  --text-main: #e5e7eb;
  --text-muted: #9ca3af;
  --border: #1f2933;
}

/* BASE */
body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
}

a {
  color: var(--text-main);
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* CONTAINER */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* HEADER */
.header {
  background: rgba(11, 15, 20, 0.9);
  border-bottom: 1px solid var(--border);
}

.header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.logo {
  height: 48px;
}

.nav a {
  margin-left: 25px;
  font-size: 0.95rem;
  transition: color 0.3s;
}

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

/* HERO */
.hero {
  padding: 90px 0;
  background: linear-gradient(160deg, #020617, #020617, #0b1220);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 15px;
}

.hero p {
  max-width: 720px;
  font-size: 1.1rem;
  color: var(--text-muted);
}

.credenciado {
  display: inline-block;
  margin-top: 25px;
  padding: 10px 18px;
  border-left: 4px solid var(--secondary);
  background: rgba(37, 99, 235, 0.08);
  font-size: 0.95rem;
}

/* ÁREAS */
.areas {
  padding: 70px 0;
}

.areas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.area-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 30px;
  border-radius: 10px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.area-box:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
}

.area-box h3 {
  margin-bottom: 10px;
  color: #fff;
}

.area-box p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
  align-items: center;
}

.footer p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-selo span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-selo img {
  margin: 10px 0;
  max-width: 160px;
}

/* RESPONSIVO */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.2rem;
  }

  .nav a {
    margin-left: 15px;
  }
}