:root {
  --bg-main: radial-gradient(1200px at 10% 10%, #0b1a3a, #05070e);
  --glass: rgba(40, 70, 150, 0.25);
  --border: rgba(120, 160, 255, 0.35);
  --text-main: #e9eeff;
  --accent: #4d7cff;
  --accent-soft: #4dfcff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  overflow-x: hidden;
}

/* Background canvas */
#tech-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 60px;
  backdrop-filter: blur(14px);
}

.logo {
  font-weight: 800;
  letter-spacing: 2px;
}

.nav a {
  margin-left: 20px;
  text-decoration: none;
  color: inherit;
  opacity: 0.85;
}

.nav a.highlight {
  color: var(--accent-soft);
}

/* Hero */
.hero {
  padding: 120px 60px 80px;
  max-width: 900px;
}

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

.hero p {
  max-width: 700px;
  opacity: 0.9;
}

.hero-actions {
  margin-top: 30px;
}

/* Buttons */
.btn {
  padding: 14px 26px;
  border-radius: 30px;
  text-decoration: none;
  margin-right: 15px;
}

.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: #05070e;
}

.glass {
  background: var(--glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(20px);
}

/* Grid Section */
.grid-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
  padding: 80px 60px;
}

.card {
  padding: 30px;
  border-radius: 20px;
}

.inline-link {
  display: inline-block;
  margin-top: 15px;
  color: var(--accent-soft);
  text-decoration: none;
}

/* CTA */
.cta {
  padding: 80px 60px;
  text-align: center;
}

.cta h2 {
  font-size: 2.2rem;
}

/* Footer */
.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 30px 60px;
  opacity: 0.85;
}

.socials img {
  width: 18px;
  margin-left: 15px;
}