*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    "Noto Sans", "Liberation Sans", Arial, sans-serif, "Apple Color Emoji",
    "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  font-size: 1rem;
  line-height: 1.5;
  color: #212529;
  background-color: #fff;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: #0d6efd;
}

h1, h2, p {
  margin-top: 0;
}

ul {
  padding-left: 2rem;
}

/* Header */
.header-bar {
  width: 100%;
  padding: 0.75rem 0;
  background-color: #00195e;
  border-top: 0.1875rem solid red;
  border-bottom: 0.1875rem solid red;
}

.header-bar h1 {
  color: #fff;
  text-align: center;
  font-size: 2.5rem;
  font-weight: 500;
  line-height: 1.2;
  margin: 0;
}

/* Main container */
.container {
  max-width: 400px;
  margin: 0 auto;
  padding: 0 0.75rem;
}

/* Meta line */
.meta-line {
  padding-top: 0.5rem;
  font-size: 1rem;
}

.meta-line .fw-bold {
  font-weight: 700;
}

/* Headline */
.main-headline {
  padding-top: 0.75rem;
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.2;
}

/* Author byline */
.byline {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding-top: 0.5rem;
}

.byline img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.byline .author-name {
  margin-left: 0.5rem;
  font-size: 1rem;
}

.byline .social-icon {
  margin-left: 0.25rem;
}

/* Featured image */
.featured-image {
  display: block;
  padding-top: 0.75rem;
  text-decoration: none;
}

.featured-image img {
  width: 100%;
  height: auto;
}

/* Article body */
.article-body {
  padding-top: 0.75rem;
  font-size: 1.4861rem;
}

.article-body p {
  margin-bottom: 1rem;
}

.article-body a {
  text-decoration: none;
}

.article-body .fw-bold {
  font-weight: 700;
}

.article-body ul {
  font-weight: 700;
  margin-bottom: 1rem;
}

.article-body .sub-headline {
  padding-top: 1.5rem;
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.2;
}

.article-body .step-text {
  padding-top: 0.75rem;
}

/* Age selector */
.age-heading {
  text-align: center;
  padding-top: 3rem;
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.2;
}

.age-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 1rem;
}

.age-row {
  display: flex;
  gap: 0.75rem;
}

.age-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 75px;
  background-color: #198754;
  color: #fff;
  font-weight: 500;
  font-size: 1.25rem;
  text-decoration: none;
  border-radius: 0.375rem;
  border: 1px solid #198754;
  transition: background-color 0.15s ease-in-out;
}

.age-btn:hover {
  background-color: #157347;
  color: #fff;
}

.cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 50px;
  background-color: #198754;
  color: #fff;
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  border-radius: 0.375rem;
  border: 1px solid #198754;
  transition: background-color 0.15s ease-in-out;
}

.cta-btn:hover {
  background-color: #157347;
  color: #fff;
}

/* Footer */
.footer {
  margin-top: 5rem;
  padding-bottom: 2.5rem;
}

.footer .links {
  text-align: center;
}

.footer .copyright {
  padding-top: 0.5rem;
  text-align: center;
}

.footer .disclaimer {
  padding-top: 0.5rem;
  text-align: center;
  font-size: 0.875rem;
}