* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  min-height: 100vh;
  background-image: url('assets/fond.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

/* Header bleu et blanc AJA */
.site-header {
  background-color: #ffffff;
  border-bottom: 4px solid #061233;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
  padding: 0.75rem 1rem;
}

.site-header__container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.site-header__logo {
  height: 3rem;
  width: auto;
}

.site-header__title {
  color: #061233;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Contenu principal centre */
.page {
  min-height: calc(100vh - 4.5rem);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

/* Bouton aux couleurs du club (bleu -> bleu clair) */
.btn-aja {
  background-image: linear-gradient(90deg, #061233 0%, #3c77b4 100%);
  color: #ffffff;
  border: none;
  border-radius: 0.5rem;
  padding: 0.9rem 2.2rem;
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(6, 18, 51, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-image 0.2s ease;
}

.btn-aja:hover {
  background-image: linear-gradient(90deg, #3c77b4 0%, #061233 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(6, 18, 51, 0.5);
}

.btn-aja:active {
  transform: translateY(0);
  box-shadow: 0 3px 6px rgba(6, 18, 51, 0.4);
}

/* Responsive */
@media (max-width: 480px) {
  .site-header__title {
    font-size: 1rem;
  }

  .site-header__logo {
    height: 2.25rem;
  }

  .btn-aja {
    width: 100%;
    padding: 0.9rem 1.25rem;
    font-size: 1rem;
  }
}