:root {
  --bg: #f7f8f8;
  --surface: #ffffff;
  --text: #1f2933;
  --muted: #5c6670;
  --link: #0b5cad;
  --border: #d9dee3;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

.container {
  max-width: 46rem;
  margin: 8vh auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem 1.5rem;
}

h1 {
  margin: 0 0 0.25rem;
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  line-height: 1.2;
}

.subtitle {
  margin: 0 0 1.1rem;
  color: var(--muted);
}

p {
  margin: 0 0 1rem;
}

a {
  color: var(--link);
  text-underline-offset: 2px;
}

a:hover,
a:focus-visible {
  text-decoration-thickness: 2px;
}

.published-by {
  margin-top: 1.4rem;
  color: var(--muted);
  font-size: 0.94rem;
}

@media (max-width: 680px) {
  .container {
    margin: 0;
    border: 0;
    border-radius: 0;
    min-height: 100vh;
    padding: 1.4rem 1rem;
  }
}