/* Page de présentation : palette teal de Fédoria (#0F766E), polices du système, aucun script. */
:root {
  --teal: #0f766e;
  --teal-dark: #115e59;
  --teal-soft: #f0fdfa;
  --ink: #0a1330;
  --muted: #475569;
  --line: #d9e2ec;
  color-scheme: light;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.55;
  color: var(--ink);
  background: #fff;
}

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

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 64rem;
  margin: 0 auto;
  padding: 1rem 1.25rem;
}

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

.button {
  display: inline-block;
  padding: 0.6rem 1.1rem;
  border-radius: 0.6rem;
  background: var(--teal);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}

.button:hover,
.button:focus-visible {
  background: var(--teal-dark);
}

.button.large {
  padding: 0.85rem 1.5rem;
  font-size: 1.05rem;
}

a:focus-visible {
  outline: 3px solid #14b8a6;
  outline-offset: 2px;
}

main {
  max-width: 64rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.hero {
  padding: 3.5rem 0 3rem;
  text-align: center;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1.12;
}

.lead {
  max-width: 40rem;
  margin: 0 auto 1.75rem;
  font-size: 1.15rem;
  color: var(--muted);
}

.note {
  margin: 1rem 0 0;
  font-size: 0.95rem;
  color: var(--muted);
}

h2 {
  margin: 0 0 1.25rem;
  font-size: 1.6rem;
}

.features {
  padding: 2rem 0;
}

.features ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.features li {
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: var(--teal-soft);
}

.features h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  color: var(--teal-dark);
}

.features p {
  margin: 0;
  color: var(--muted);
}

.trust {
  padding: 1.5rem 0 3.5rem;
}

.trust p {
  max-width: 44rem;
  margin: 0;
  color: var(--muted);
}

footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  max-width: 64rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
}

.copyright {
  margin: 0;
  color: var(--muted);
}

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