/* Global */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body.dark-theme {
  background: #0d0d0d;
  color: #e0e0ff;
  font-family: 'Rajdhani', sans-serif;
}

/* Header */
.site-header {
  background: #111827;
  padding: 20px 0;
  box-shadow: 0 3px 6px rgba(0,0,0,0.3);
}
.site-header .container {
  width: 90%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-size: 28px;
  color: #00bcd4;
}
nav .nav-btn {
  margin: 0 10px;
  color: #eee;
  text-decoration: none;
  padding: 10px 15px;
  border-radius: 6px;
  transition: 0.3s;
}
.nav-btn:hover,
.nav-btn.active {
  background: #1f2937;
  color: #00d5ff;
}
.highlight-btn {
  background: #00bcd4;
  color: #000;
  font-weight: bold;
}

/* Hero */
.hero-section {
  text-align: center;
  padding: 100px 20px;
  background: linear-gradient(to right, #001f3f, #00112b);
}
.hero-section h2 {
  font-size: 36px;
  margin-bottom: 15px;
}
.hero-section p {
  font-size: 18px;
  margin-bottom: 30px;
}
.cta-btn {
  padding: 12px 30px;
  background-color: #00bcd4;
  color: #000;
  border: none;
  border-radius: 30px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: 0.3s;
}
.cta-btn:hover {
  background-color: #0097a7;
  color: white;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 20px;
  background: #0b0b0b;
  color: #999;
  font-size: 14px;
}