/* Core typography & layout */
:root { --accent: #000; }
* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Helvetica Neue", Arial, sans-serif;
  line-height: 1.55;
  background: #fff;
  color: var(--accent);
  text-align: center;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

h1 {
  font-size: 48px;
  margin: 0 0 8px;
  letter-spacing: 0.03em;
}

.subtitle {
  font-weight: 600;
  margin: 0 0 24px;
}

h2 {
  font-size: 18px;
  margin: 40px 0 20px;
  font-weight: 600;
}

p {
  font-size: 17px;
  margin: 22px 0;
}

figure {
  margin: 32px auto;
}

figure img {
  width: 240px;
  max-width: 90%;
  height: auto;
  border-radius: 4px;
}

/* Button group */
.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin: 32px 0;
}

.btn {
  display: inline-block;
  padding: 10px 18px;
  background: #000;
  color: #fff;
  border-radius: 4px;
  text-decoration: none;
  font-size: 15px;
  transition: opacity .2s;
}
.btn:hover { opacity: .85; }

footer {
  margin-top: 60px;
  font-size: 14px;
  opacity: .6;
}