/* ============================================================
   LAYOUT — header, footer, nav desktop
   ============================================================ */

/* — Header sticky ----------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header); /* 100 — voir PIEGE z-index */
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h-mobile);
}

@media (min-width: 768px) {
  .site-header { height: var(--header-h); }
}

.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* — Logo / marque ----------------------------------------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  flex-shrink: 0;
}

.brand-mark {
  width: 32px;
  height: 32px;
  color: var(--accent);
  flex-shrink: 0;
  display: grid;
  place-items: center;
}

.brand-mark svg { width: 100%; height: 100%; display: block; }

.brand-name {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: 1.15rem;
  line-height: 1.1;
  color: var(--text);
}

/* — Nav desktop ------------------------------------------- */
.nav-desktop {
  display: none;
  align-items: center;
  gap: 28px;
}

.nav-desktop a {
  font-family: var(--ff-ui);
  font-size: .9rem;
  color: var(--text-2);
  transition: color .2s;
}

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

@media (min-width: 768px) {
  .nav-desktop { display: flex; }
}

/* — CTA header -------------------------------------------- */
.header__cta { display: none; }

@media (min-width: 768px) {
  .header__cta { display: flex; align-items: center; gap: 10px; }
}

/* — Section wrapper générique ----------------------------- */
.section {
  padding-block: clamp(56px, 9vw, 96px);
}

.section--alt { background: var(--bg-alt); }
.section--surface { background: var(--surface); }

/* — Footer ------------------------------------------------ */
.site-footer {
  background: var(--dark-bg);
  color: var(--dark-text);
  padding-block: clamp(40px, 6vw, 64px);
}

.site-footer p,
.site-footer a,
.site-footer span,
.site-footer li,
.site-footer small {
  color: color-mix(in srgb, var(--dark-text) 78%, transparent);
}

.site-footer .brand-name { color: var(--dark-text); }
.site-footer .brand-mark { color: var(--dark-text); }

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

@media (min-width: 768px) {
  .footer__inner {
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
  }
}

.footer__col-title {
  font-family: var(--ff-display);
  font-size: 1.05rem;
  color: var(--dark-text);
  margin-bottom: 14px;
  font-weight: 500;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__links a {
  color: color-mix(in srgb, var(--dark-text) 70%, transparent);
  font-size: .9rem;
  transition: color .2s;
}

.footer__links a:hover { color: var(--dark-text); }

.footer__bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid color-mix(in srgb, var(--dark-text) 18%, transparent);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.footer__bottom small {
  font-size: .8rem;
  color: color-mix(in srgb, var(--dark-text) 50%, transparent);
}

.footer__legal-link {
  font-size: .82rem;
  color: color-mix(in srgb, var(--dark-text) 60%, transparent);
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--ff-ui);
}

.footer__legal-link:hover {
  color: var(--dark-text);
}