:root {
  --navy: #0b132b;
  --teal: #00e5ff;
  --white: #ffffff;
  --gray: #cbd5e1;
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--white);
  color: #0f172a;
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

.narrow {
  max-width: 700px;
  font-size: 150%;
}

.center {
  text-align: center;
}

.center-text {
  text-align: center;
  margin-top: 1rem;
}

/* HERO */
.hero {
    /*background-image: url('assets/NEXITA_LOGO.jpg');*/
  background: linear-gradient(135deg, var(--navy), #020617);
  color: var(--white);
  padding: 100px 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  letter-spacing: 2px;
}

.tagline {
  color: var(--teal);
  margin: 10px 0;
  font-weight: 600;
  font-size: 20px;
}

.subtext {
  max-width: 600px;
  margin: 20px auto;
  color: var(--gray);
}

/* BUTTONS */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  margin-top: 25px;
}

.btn-primary {
  background: var(--teal);
  color: #000;
}

.btn-secondary {
  background: var(--navy);
  color: var(--white);
}

.btn-primary:hover,
.btn-secondary:hover {
  opacity: 0.85;
}

/* SECTIONS */
.section {
  padding: 80px 0;
}

.section.dark {
  background: #020617;
  color: var(--white);
}

.section h2 {
  text-align: center;
  margin-bottom: 20px;
}

/* GRID */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
}

.card {
  background: #020617;
  border: 1px solid #1e293b;
  padding: 25px;
  border-radius: 10px;
}

.card h3 {
  color: var(--teal);
  margin-bottom: 10px;
}

/* FEATURES */
.features {
  list-style: none;
  margin: 30px 0;
}

.features li {
  padding: 10px 0;
  text-align: center;
}

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--navy), #020617);
  color: var(--white);
  text-align: center;
  padding: 90px 0;
}

/* FOOTER */
footer {
  background: #020617;
  color: var(--gray);
  text-align: center;
  padding: 20px 0;
  font-size: 0.9rem;
}

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