:root {
  --fond: #1c1f35;
  --fond-carte: #282b45;
  --menthe: #45c9a5;
  --texte: #ffffff;
  --texte-second: #9a9cb8;
  --bordure: #363a5c;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--fond);
  color: var(--texte);
  font-family: "Instrument Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

h1, h2, h3 {
  font-family: "Bricolage Grotesque", -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0;
}

h1 { font-size: clamp(2.4rem, 7vw, 4rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2rem); margin-top: 3rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.1rem; margin-top: 2rem; margin-bottom: 0.4rem; font-weight: 600; }

p, li { max-width: 66ch; }
p { margin: 0 0 1.1rem; }
ul { padding-left: 1.2rem; margin: 0 0 1.1rem; }
li { margin-bottom: 0.5rem; }

a { color: var(--menthe); text-decoration: none; border-bottom: 1px solid rgba(69, 201, 165, 0.35); }
a:hover { border-bottom-color: var(--menthe); }
a:focus-visible { outline: 2px solid var(--menthe); outline-offset: 3px; border-radius: 2px; }

.enveloppe { max-width: 46rem; margin: 0 auto; padding: 0 1.5rem; }

/* En-tête */
.entete { padding: 1.75rem 0; }
.entete .enveloppe { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.logo {
  font-family: "Bricolage Grotesque", sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--texte);
  border: none;
}
.nav-liens { display: flex; gap: 1.5rem; font-size: 0.95rem; }
.nav-liens a { color: var(--texte-second); border: none; }
.nav-liens a:hover { color: var(--menthe); }

/* Héros — le bord dentelé évoque un reçu déchiré */
.heros { padding: 3.5rem 0 4rem; position: relative; }
.heros p.accroche {
  font-size: clamp(1.05rem, 2.6vw, 1.25rem);
  color: var(--texte-second);
  margin-top: 1.25rem;
}
.dentelure {
  height: 14px;
  background:
    linear-gradient(-45deg, transparent 66%, var(--bordure) 67%) 0 0 / 16px 16px repeat-x,
    linear-gradient(45deg, transparent 66%, var(--bordure) 67%) 0 0 / 16px 16px repeat-x;
}

/* Blocs de contenu */
.contenu { padding: 1rem 0 4rem; }
.date-maj { color: var(--texte-second); font-size: 0.9rem; margin-bottom: 2.5rem; }

.carte {
  background: var(--fond-carte);
  border-left: 3px solid var(--menthe);
  border-radius: 10px;
  padding: 1.25rem 1.4rem;
  margin: 1.5rem 0;
}
.carte p:last-child, .carte ul:last-child { margin-bottom: 0; }

.courriel {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: clamp(1.2rem, 4vw, 1.6rem);
  font-weight: 700;
}

/* Pied de page */
.pied {
  border-top: 1px solid var(--bordure);
  padding: 2rem 0 3rem;
  color: var(--texte-second);
  font-size: 0.9rem;
}
.pied .enveloppe { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; justify-content: space-between; }
.pied a { color: var(--texte-second); border: none; }
.pied a:hover { color: var(--menthe); }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}