:root {
  --color-bg: #0a1e33;
  --color-bg-alt: #122b45;
  --color-accent: #6d4bff;
  --color-accent-hover: #856bff;
  --color-text: #ffffff;
  --color-muted: #b8c2d1;
  --radius: 8px;
  --transition: .25s ease;
  --max-width: 1200px;
  font-family: system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial,sans-serif;
}

* { box-sizing: border-box; margin:0; padding:0; }

body {
  background: linear-gradient(135deg, var(--color-bg), var(--color-bg-alt));
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; width:100%; max-width: var(--max-width); margin: 0 auto; padding: 2rem 1.25rem; }

.main-nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 1rem;
  background: rgba(10,30,51,0.9);
  backdrop-filter: blur(6px);
  position: sticky;
  top:0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.main-nav .brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
  letter-spacing: .5px;
}

.logo {
  height: 36px;
  width: auto;
  display: block;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.25rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-muted);
  font-weight: 500;
  position: relative;
  padding: .4rem;
  border-radius: var(--radius);
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--color-text);
  background: rgba(255,255,255,0.06);
}

.nav-tools {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.lang-switcher select {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border: 1px solid rgba(255,255,255,0.15);
  padding: .4rem .6rem;
  border-radius: var(--radius);
}

.datetime {
  font-size: .85rem;
  opacity: .85;
  min-width: 170px;
  text-align: right;
}

.client-ip {
  margin-top: 1rem;
  font-size: .85rem;
  opacity: .75;
}

.site-footer {
  margin-top: 3rem;
  text-align: center;
  padding: 2rem 1rem;
  font-size: .85rem;
  background: #061320;
  border-top: 1px solid rgba(255,255,255,0.07);
}

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

@media (max-width: 780px) {
  .nav-links {
    display: none; /* minimaliste : tu peux implémenter un burger plus tard */
  }
  .datetime { display: none; }
  .brand-name { display: none; }
}

@media (prefers-color-scheme: light) {
  :root {
    --color-text: #0a1e33;
    --color-bg: #ffffff;
    --color-bg-alt: #eef2f8;
    --color-muted: #425063;
  }
  body {
    background: linear-gradient(135deg, var(--color-bg-alt), #ffffff);
  }
  .main-nav {
    background: #ffffffd9;
    border-bottom-color: #d8dee6;
  }
  .site-footer {
    background: #f0f4fa;
    border-top-color: #d8dee6;
  }
}

/* Footer horizontal align */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2rem;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.site-footer > * {
  margin: 0;
}

.site-footer .client-ip {
  order: 1;
  font-size: .8rem;
  opacity: .65;
  margin: 0;
}

/* Plus compact sur mobile */
@media (max-width: 560px) {
  .site-footer {
    flex-direction: column;
    gap: .4rem;
  }
}


/* Footer refonte */
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  background: #061320cc;
  backdrop-filter: blur(6px);
  color: var(--color-muted);
  font-size: .9rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-left p {
  line-height: 1.4;
  color: var(--color-muted);
}

.footer-subtext {
  font-size: .8rem;
  opacity: .8;
}

.footer-link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
}

.footer-link:hover {
  color: var(--color-accent-hover);
}

.footer-separator {
  margin: 0 .5rem;
  opacity: .6;
}

.footer-center {
  display: flex;
  align-items: center;
}

.footer-right {
  display: flex;
}

@media (max-width: 780px) {
  .site-footer {
    flex-direction: column;
    gap: .75rem;
    text-align: center;
  }

  .footer-center {
    order: 3;
  }
}


.home_intro p,
.home_intro h1,
.home_logos_section h2 {
    color: #dfe8f5 !important; /* texte plus clair */
}