/* ============================================================
   GUIDE THERMIQUE — footer.css
   Fond blanc — 4 colonnes responsive
   ============================================================ */


/* ─────────────────────────────────────────────
   FOOTER WRAPPER
   ───────────────────────────────────────────── */
.gt-footer {
  margin-top: 4rem;
  background-color: #FFFFFF;
  border-top: 1px solid var(--color-border);
  color: var(--color-text);
}

.gt-footer .container {
  padding-top: 3rem;
  padding-bottom: 1.5rem;
}


/* ─────────────────────────────────────────────
   GRILLE 4 COLONNES
   ───────────────────────────────────────────── */
.gt-footer__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 2.5rem;
}

@media (min-width: 640px) {
  .gt-footer__cols {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem 3rem;
  }
}

@media (min-width: 1024px) {
  .gt-footer__cols {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 2rem 3rem;
    align-items: start;
  }
}


/* ─────────────────────────────────────────────
   COLONNE GÉNÉRIQUE
   ───────────────────────────────────────────── */
.gt-footer__col-title {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-primary);
  margin: 0 0 0.875rem;
}

.gt-footer__col-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.gt-footer__col-list li a {
  font-size: var(--text-sm);
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.gt-footer__col-list li a:hover,
.gt-footer__col-list li a:focus-visible {
  color: var(--color-accent);
}


/* ─────────────────────────────────────────────
   COL 1 : BRAND
   ───────────────────────────────────────────── */
.gt-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  margin-bottom: 0.875rem;
}

.gt-footer__logo-text {
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.gt-footer__brand-desc {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.65;
  margin: 0;
  max-width: 280px;
}


/* ─────────────────────────────────────────────
   COL 4 : CTA
   ───────────────────────────────────────────── */
.gt-footer__col-desc {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.6;
  margin: 0 0 1.25rem;
}

/* Bouton outline orange */
.gt-footer__cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.625rem 1.25rem;
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
  border-radius: 9999px;
  text-decoration: none;
  background: transparent;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast);
}

.gt-footer__cta-btn:hover,
.gt-footer__cta-btn:focus-visible {
  background-color: var(--color-accent);
  color: #FFFFFF;
}

.gt-footer__partner-mention {
  margin-top: 0.75rem;
  font-size: 0.6875rem;
  color: var(--color-gray-500);
}

.gt-footer__partner-mention strong {
  color: var(--color-accent);
  font-weight: var(--fw-medium);
}


/* ─────────────────────────────────────────────
   BARRE BAS : COPYRIGHT
   ───────────────────────────────────────────── */
.gt-footer__bottom {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1.25rem;
}

@media (min-width: 768px) {
  .gt-footer__bottom {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
  }
}

.gt-footer__copyright {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  line-height: 1.5;
  margin: 0;
}

.gt-footer__legal {
  font-size: 0.6875rem;
  color: var(--color-gray-500);
  line-height: 1.5;
  margin: 0;
  opacity: 0.7;
}

@media (min-width: 768px) {
  .gt-footer__legal {
    text-align: right;
  }
}