/* ===========================
   RESET & BASE
=========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: #1a1a2e; background: #fff; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===========================
   CONTAINER
=========================== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===========================
   HEADER
=========================== */
.header {
  position: sticky; top: 0; z-index: 100;
  background: #0a1628;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo img { height: 52px; width: auto; object-fit: contain; }

.nav ul { display: flex; gap: 32px; }
.nav a {
  color: #c8d8e8; font-size: 15px; font-weight: 500;
  transition: color .2s;
}
.nav a:hover, .nav a.active { color: #4fc3f7; }

.hamburger {
  display: none; background: none; border: none;
  color: #c8d8e8; font-size: 26px; cursor: pointer;
}
.mobile-menu { display: none; background: #0a1628; }
.mobile-menu.open { display: block; }
.mobile-menu ul { padding: 12px 24px 20px; display: flex; flex-direction: column; gap: 16px; }
.mobile-menu a { color: #c8d8e8; font-size: 16px; }

/* ===========================
   HERO
=========================== */
.hero {
  position: relative;
  min-height: 520px;
  background: url('img/DRONE---Troca-de-bobina-1-.jpg') center/cover no-repeat;
  display: flex; align-items: center;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(10,22,40,0.88) 0%, rgba(10,22,40,0.6) 100%);
}
.hero-content {
  position: relative; z-index: 1;
  max-width: 680px; padding: 80px 24px;
}
.hero-content h1 {
  font-size: clamp(26px, 4vw, 46px);
  font-weight: 700; color: #fff;
  line-height: 1.2; margin-bottom: 20px;
}
.hero-content p {
  font-size: 17px; color: #b0c8e0;
  line-height: 1.7; margin-bottom: 32px;
}
.btn-primary {
  display: inline-block;
  background: #1565c0; color: #fff;
  padding: 14px 32px; border-radius: 6px;
  font-size: 15px; font-weight: 600;
  transition: background .2s, transform .15s;
}
.btn-primary:hover { background: #0d47a1; transform: translateY(-2px); }

/* ===========================
   SECTIONS
=========================== */
.section { padding: 72px 0; }
.section-title {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700; text-align: center;
  color: #0a1628; margin-bottom: 48px;
}

/* ===========================
   WHY
=========================== */
.why { background: #f4f8fc; }
.why-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; align-items: center;
}
.why-img img { border-radius: 10px; width: 100%; object-fit: cover; box-shadow: 0 8px 24px rgba(0,0,0,0.12); }
.why-list ul { display: flex; flex-direction: column; gap: 14px; margin-bottom: 24px; }
.why-list li { font-size: 16px; color: #0a1628; font-weight: 500; }
.why-text { font-size: 16px; color: #444; line-height: 1.7; margin-bottom: 8px; }
.why-sub { font-size: 18px; font-weight: 700; color: #1565c0; }

/* ===========================
   DIFERENCIAIS
=========================== */
.diferenciais { background: #fff; }
.diferenciais-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}
.card {
  border-radius: 10px; overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: transform .25s, box-shadow .25s;
  background: #fff;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 12px 32px rgba(0,0,0,0.14); }
.card img { width: 100%; height: 180px; object-fit: cover; }
.card h3 { font-size: 17px; font-weight: 700; color: #0a1628; padding: 18px 18px 10px; }
.card p { font-size: 14px; color: #555; line-height: 1.65; padding: 0 18px 20px; }

/* ===========================
   AUTORIDADE
=========================== */
.autoridade { background: #0a1628; }
.autoridade-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; align-items: center;
}
.autoridade-text h2 { font-size: clamp(22px, 3vw, 34px); color: #fff; margin-bottom: 24px; }
.autoridade-text ul { display: flex; flex-direction: column; gap: 14px; }
.autoridade-text li { font-size: 16px; color: #90caf9; font-weight: 500; }
.autoridade-img img { border-radius: 10px; width: 100%; object-fit: cover; }

/* ===========================
   CLIENTES
=========================== */
.clientes { background: #f4f8fc; }
.logos-grid {
  display: flex; flex-wrap: wrap;
  gap: 32px; justify-content: center; align-items: center;
}
.logos-grid img {
  height: 48px; width: auto; object-fit: contain;
  filter: grayscale(30%); transition: filter .2s;
}
.logos-grid img:hover { filter: none; }

/* ===========================
   FOOTER
=========================== */
.footer { background: #060f1e; color: #8ba8c4; padding: 56px 0 0; }
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; padding-bottom: 48px;
}
.footer-logo { height: 60px; width: auto; margin-bottom: 16px; }
.footer-col p { font-size: 14px; line-height: 1.7; margin-bottom: 6px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col li, .footer-col a { font-size: 14px; color: #8ba8c4; transition: color .2s; }
.footer-col a:hover { color: #4fc3f7; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center; padding: 20px 24px;
  font-size: 13px; color: #4a6480;
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 900px) {
  .nav { display: none; }
  .hamburger { display: block; }
  .why-grid, .autoridade-inner { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-inner { grid-template-columns: 1fr; }
  .hero { min-height: 420px; }
}