/* ══════════════════════════════════════
   FOOTER
══════════════════════════════════════ */
.footer-section {
  position: relative;
  padding: 80px 0 60px;
  background: #0F172A;
  border-top: 1px solid #1E293B;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand {
  align-items: flex-start;
}

#logo-footer {
  height: 32px;
  width: auto;
  display: block;
  margin-bottom: 24px;
}

.footer-tagline {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 400;
  color: #94A3B8;
  line-height: 1.7;
  margin: 0;
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.social-link {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid #1e293b;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #475569;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  background: transparent;
  text-decoration: none;
}

.social-link:hover {
  border-color: #1a73e8;
  color: #1a73e8;
  background: rgba(26, 115, 232, 0.08);
}

.footer-heading {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: #F1F5F9;
  margin: 0;
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 400;
  color: #64748B;
  text-decoration: none;
  transition: color .2s ease, transform .2s ease;
  display: inline-block;
  width: fit-content;
}

.footer-link:hover {
  color: #e2e8f0;
  transform: translateX(4px);
}

.footer-link-muted {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: #64748B;
}

/* ── Séparateur ── */
.footer-divider {
  height: 1px;
  background: #1E293B;
}

/* ── Barre basse ── */
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0 0;
}

.footer-copy,
.footer-made {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: #334155;
  margin: 0;
}

/* ── Watermark ── */
.footer-watermark {
  display: block;
  text-align: center;
  font-family: 'Inter', sans-serif;
  font-size: clamp(72px, 12vw, 148px);
  font-weight: 900;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  line-height: 0.88;
  margin-top: 16px;
  margin-bottom: -8px;
  background: linear-gradient(180deg, #1a73e8 0%, #9ACEE8 55%, transparent 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.18;
  mask-image: linear-gradient(to right, transparent 0%, black 12%, black 88%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 12%, black 88%, transparent 100%);
  pointer-events: none;
  user-select: none;
}

/* ══════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════ */
@media (max-width: 900px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 600px) {
  .footer-section {
    padding: 60px 0 40px;
  }
  .footer-container {
    padding: 0 24px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: span 1;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .footer-watermark {
    font-size: clamp(48px, 18vw, 88px);
  }
}