/* Site public provisoire d'Appertio : sobre, mobile d'abord, couleurs du thème de l'application. */
:root {
  --brand: #2b4c8c;
  --brand-dark: #1d335e;
  --brand-soft: #eef3fb;
  --fg: #18181b;
  --muted: #52525b;
  --todo-bg: #fff4d6;
  --todo-fg: #7a4b00;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    Inter,
    system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    sans-serif;
  color: var(--fg);
  background: #fff;
  line-height: 1.6;
}

main,
header,
footer {
  max-width: 44rem;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

header a {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--brand-dark);
  font-weight: 700;
  font-size: 1.25rem;
  text-decoration: none;
}

header img {
  width: 2.5rem;
  height: 2.5rem;
}

h1 {
  color: var(--brand-dark);
  line-height: 1.2;
}

h2 {
  color: var(--brand-dark);
  font-size: 1.15rem;
  margin-top: 2rem;
}

a {
  color: var(--brand);
}

.button {
  display: inline-block;
  min-height: 44px;
  padding: 0.7rem 1.4rem;
  border-radius: 0.6rem;
  background: var(--brand);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}

.button:hover {
  background: var(--brand-dark);
}

.lead {
  font-size: 1.15rem;
  color: var(--muted);
}

.todo {
  background: var(--todo-bg);
  color: var(--todo-fg);
  font-weight: 600;
  padding: 0 0.3rem;
  border-radius: 0.25rem;
}

footer {
  border-top: 1px solid var(--brand-soft);
  color: var(--muted);
  font-size: 0.9rem;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}