/* Global styles */
body {
  margin: 50px;

  padding: 0;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background-color: #f7f7fa;
  color: #111827;
}

.container {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

/* Intro section background */
.intro-hero {
  position: relative;
  overflow: hidden;

  background-image: url("../img/background_img.jpeg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  padding: clamp(3rem, 5vw, 4.5rem) 2rem;
  border-radius: 0.9rem;

  color: #f9fafb;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.25);
}

.intro-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at top left,
    rgba(15, 23, 42, 0.4),
    rgba(15, 23, 42, 0.8)
  );
  opacity: 0.9;
}

.intro-hero > * {
  position: relative;
  z-index: 1;
}

.intro-hero h2 {
  font-size: clamp(2rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
}

.intro-hero p {
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 38rem;
}

.intro-hero .btn {
  padding-inline: 1.4rem;
  padding-block: 0.6rem;
}

.list-group-item {
  font-size: 0.98rem;
  line-height: 1.6;
}