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

:root {
  --color-bg: #fef9f3;
  --color-surface: #ffffff;
  --color-primary: #e85d4c;
  --color-primary-dark: #c94a3a;
  --color-accent: #4a90a4;
  --color-text: #2d3436;
  --color-muted: #636e72;
  --font-body: "Segoe UI", system-ui, sans-serif;
  --max-width: 42rem;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
}

header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  text-align: center;
  padding: 3rem 1.5rem;
}

header h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
}

header h2 {
  margin: 0;
  font-size: clamp(1rem, 3vw, 1.25rem);
  font-weight: 400;
  opacity: 0.95;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

main > p:first-of-type {
  font-size: 1.2rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

h3 {
  color: var(--color-primary);
  font-size: 1.25rem;
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.25rem;
  border-bottom: 2px solid rgba(232, 93, 76, 0.25);
}

p {
  margin: 0 0 1rem;
}

a {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-primary);
}

@media (min-width: 768px) {
  main {
    padding: 3rem 2rem 4rem;
  }

  header {
    padding: 4rem 2rem;
  }
}