:root {
  --bg: #0A0F14;
  --bg2: #121A22;
  --accent: #23E0B2;
  --accent2: #00BFFF;
  --text: #EAF2F7;
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* NAV */

.nav {
  position: fixed;
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 20px 40px;
  background: transparent;
  z-index: 1000;
  transition: 0.3s;
}

.nav.scrolled {
  background: rgba(10,15,20,0.85);
  backdrop-filter: blur(10px);
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  letter-spacing: 2px;
}

.nav a {
  margin-left: 30px;
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
}

/* HERO */

.hero {
  height: 100vh;
  background: url('../images/drone.jpg') center/cover no-repeat;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,15,20,0.65);
}

.hero-content {
  position: relative;
  max-width: 800px;
}

.hero h1 {
  font-family: 'Space Grotesk';
  font-size: 3rem;
  margin-bottom: 20px;
}

.hero p {
  opacity: 0.9;
  margin-bottom: 30px;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  padding: 14px 28px;
  border-radius: 40px;
  text-decoration: none;
  font-weight: 600;
}

.btn-secondary {
  border: 1px solid var(--text);
  padding: 14px 28px;
  border-radius: 40px;
  margin-left: 10px;
  text-decoration: none;
  color: var(--text);
}

/* SECTIONS */

section {
  padding: 100px 10%;
}

.services h2,
.why h2 {
  text-align: center;
  margin-bottom: 50px;
  font-family: 'Space Grotesk';
}

.grid {
  display: grid;
  gap: 30px;
  grid-template-columns: repeat(auto-fit,minmax(250px,1fr));
}

.card {
  background: var(--bg2);
  padding: 30px;
  border-radius: 20px;
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-6px);
}

/* VISUAL SECTION */

.visual {
  background: url('../images/thermal.jpg') center/cover no-repeat;
  height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.visual-text {
  background: rgba(0,0,0,0.5);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
}

/* CTA */

.cta {
  text-align: center;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #000;
}

footer {
  text-align: center;
  padding: 30px;
  background: #000;
}

/* MOBILE */

.menu-toggle { display: none; }

@media(max-width:768px) {
  .nav nav { display: none; }
  .menu-toggle { display: block; }
  .hero h1 { font-size: 2.2rem; }
}