/* ===================== */
/* GLOBAL STYLES */
/* ===================== */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0b1f3a; /* deep blue */
  color: white;
}

/* ===================== */
/* HEADER */
/* ===================== */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: #08172b;
  box-shadow: 0 2px 10px rgba(0, 234, 255, 0.2);
}

/* Logo */
.logo {
  color: #00eaff;
  font-weight: bold;
  font-size: 22px;
  text-shadow: 0 0 8px rgba(0, 234, 255, 0.7);
}

/* Navigation */
nav a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
  transition: 0.3s;
}

nav a:hover {
  color: #00eaff;
}

/* ===================== */
/* HERO SECTION */
/* ===================== */
.hero {
  text-align: center;
  padding: 140px 20px;
}

/* Main Heading */
.hero h1 {
  font-size: 52px;
  color: #ffffff;
  letter-spacing: 1px;
}

/* Tagline */
.hero p {
  font-size: 18px;
  color: #00eaff;
  margin-top: 10px;
  text-shadow: 0 0 10px rgba(0, 234, 255, 0.5);
}

/* ===================== */
/* BUTTONS */
/* ===================== */
.btn {
  display: inline-block;
  background: #00eaff;
  color: black;
  padding: 12px 25px;
  margin-top: 20px;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: 0.3s;
}

.btn:hover {
  background: #00c8d8;
  box-shadow: 0 0 10px #00eaff;
}

/* ===================== */
/* CARDS / SECTIONS */
/* ===================== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
  padding: 50px;
}

.card {
  background: #111827;
  padding: 25px;
  border-radius: 12px;
  transition: 0.3s;
  border: 1px solid rgba(0, 234, 255, 0.1);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0 20px rgba(0, 234, 255, 0.4);
}

/* ===================== */
/* FOOTER */
/* ===================== */
footer {
  text-align: center;
  padding: 20px;
  background: #08172b;
  margin-top: 40px;
  font-size: 14px;
  color: #aaa;
}