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

.osb-footer {
  background: var(--osb-charcoal);
  font-family: var(--osb-font-body);
  position: relative;
  overflow: hidden;
}

.osb-footer__accent {
  height: 2px;
  background: linear-gradient(90deg, var(--osb-brass) 0%, rgba(179, 155, 106, 0.2) 50%, transparent 100%);
}

.osb-footer__main {
  max-width: var(--osb-container-max);
  margin: 0 auto;
  padding: 72px 48px 56px;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr 1.1fr;
  gap: 48px;
}

.osb-footer__brand-logo { display: block; margin-bottom: 24px; }
.osb-footer__brand-logo img { height: 48px; width: auto; }

.osb-footer__brand-text {
  font-size: 14.5px; line-height: 1.7;
  color: var(--osb-concrete-light);
  max-width: 320px; letter-spacing: 0.01em;
}

.osb-footer__heading {
  font-family: var(--osb-font-heading);
  font-size: 13px; font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--osb-brass);
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 14px;
}

.osb-footer__heading::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 28px; height: 1px;
  background: var(--osb-brass);
  opacity: 0.5;
}

.osb-footer__list-link {
  display: inline-block;
  padding: 6px 0;
  font-size: 14px;
  color: var(--osb-silver);
  transition: color 0.2s ease, transform 0.2s ease;
  letter-spacing: 0.01em;
}

.osb-footer__list-link:hover {
  color: var(--osb-brass);
  transform: translateX(3px);
}

.osb-footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}

.osb-footer__contact-icon {
  width: 18px; height: 18px;
  flex-shrink: 0; margin-top: 3px;
  stroke: var(--osb-brass);
  stroke-width: 1.5; fill: none;
}

.osb-footer__contact-text {
  font-size: 14px;
  color: var(--osb-silver);
  line-height: 1.6; letter-spacing: 0.01em;
}

.osb-footer__contact-text a {
  color: var(--osb-silver);
  transition: color 0.2s ease;
}

.osb-footer__contact-text a:hover { color: var(--osb-brass); }

.osb-footer__bottom {
  border-top: 1px solid var(--osb-border-subtle);
}

.osb-footer__bottom-inner {
  max-width: var(--osb-container-max);
  margin: 0 auto; padding: 24px 48px;
  display: flex; align-items: center;
  justify-content: space-between;
}

.osb-footer__copyright {
  font-size: 13px;
  color: var(--osb-concrete);
  letter-spacing: 0.01em;
}

.osb-footer__legal {
  display: flex; align-items: center; gap: 8px;
}

.osb-footer__legal-link {
  font-size: 13px;
  color: var(--osb-concrete);
  transition: color 0.2s ease;
  letter-spacing: 0.01em;
}

.osb-footer__legal-link:hover { color: var(--osb-brass); }

.osb-footer__legal-sep {
  width: 3px; height: 3px;
  background: var(--osb-concrete);
  border-radius: 50%; opacity: 0.5;
}

.osb-footer__credit {
  font-size: 13px;
  color: var(--osb-concrete);
  letter-spacing: 0.01em;
}

.osb-footer__credit-link {
  color: var(--osb-concrete);
  transition: color 0.2s ease;
}

.osb-footer__credit-link:hover { color: var(--osb-brass); }

@media (max-width: 1024px) {
  .osb-footer__main { grid-template-columns: 1fr 1fr; gap: 40px 48px; padding: 56px 32px 44px; }
  .osb-footer__bottom-inner { padding: 20px 32px; }
}

@media (max-width: 640px) {
  .osb-footer__main { grid-template-columns: 1fr; gap: 36px; padding: 44px 20px 36px; }
  .osb-footer__brand-text { max-width: 100%; }
  .osb-footer__bottom-inner { flex-direction: column; gap: 14px; padding: 20px; text-align: center; }
  .osb-footer__legal { justify-content: center; }
}

@media (min-width: 1600px) {
  .osb-footer__main { max-width: var(--osb-container-wide); padding: 80px 60px 64px; }
  .osb-footer__bottom-inner { max-width: var(--osb-container-wide); padding: 24px 60px; }
}