/* ═══════════════════════════════════════
   SITE FOOTER
   ═══════════════════════════════════════ */

.site-footer {
  background: var(--color-navy-900);
  color: var(--color-slate-300);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

/* ── Brand Column ── */
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-brand__tagline {
  font-size: 0.9rem;
  color: var(--color-slate-400);
  line-height: 1.6;
  max-width: 280px;
}

.footer-social {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-sm);
}

.footer-social__link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.footer-social__link:hover {
  background: rgba(75, 139, 245, 0.2);
  color: var(--color-brand-blue-light);
}

.footer-social__link svg {
  width: 18px;
  height: 18px;
}

/* ── Link Columns ── */
.footer-col__title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  margin-bottom: var(--space-lg);
}

.footer-col__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-col__link {
  font-size: 0.875rem;
  color: var(--color-slate-400);
  transition: color var(--transition-fast);
}

.footer-col__link:hover {
  color: var(--color-brand-blue-light);
}

/* ── Newsletter ── */
.footer-newsletter {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-newsletter__title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.footer-newsletter__form {
  display: flex;
  gap: var(--space-sm);
}

.footer-newsletter__input {
  flex: 1;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  color: var(--color-white);
  font-size: 0.875rem;
}

.footer-newsletter__input::placeholder {
  color: var(--color-slate-500);
}

.footer-newsletter__input:focus {
  outline: none;
  border-color: var(--color-brand-blue);
}

.footer-newsletter__btn {
  padding: 10px 20px;
  background: var(--color-brand-blue);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.footer-newsletter__btn:hover {
  background: var(--color-brand-blue-light);
}

/* ── Bottom Bar ── */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom__copy {
  font-size: 0.8rem;
  color: var(--color-slate-500);
}

.footer-bottom__legal {
  display: flex;
  gap: var(--space-lg);
}

.footer-bottom__link {
  font-size: 0.8rem;
  color: var(--color-slate-500);
  transition: color var(--transition-fast);
}

.footer-bottom__link:hover {
  color: var(--color-slate-300);
}