/*
 * NURIA FOUNDATION — Footer
 * Reviewed: 2026-11-09
 */

.nf-footer {
  --nf-accent: #c21d1d;
  --nf-ink: #0f172a;
  --nf-muted: #526174;
  --nf-line: rgba(15, 23, 42, .12);

  margin-top: 0;
  padding: 72px 0 0;
  border-top: 1px solid var(--nf-line);
  background: linear-gradient(180deg, #f5f7fa 0%, #ffffff 100%);
  color: var(--nf-ink);
  text-align: left;
}

.nf-footer,
.nf-footer * {
  box-sizing: border-box;
}

.nf-footer > .container {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: 24px;
}

/* Identity */

.nf-footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 48px;
  padding-bottom: 38px;
}

.nf-footer-brand {
  margin: 0 0 18px;
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: .13em;
  line-height: 1.5;
}

.nf-footer-dot {
  color: var(--nf-accent);
}

.nf-footer-intro {
  max-width: 510px;
  margin: 0;
  color: var(--nf-muted);
  font-size: .96rem;
  line-height: 1.8;
}

.nf-footer-affiliation {
  padding-left: 32px;
  border-left: 1px solid var(--nf-line);
  text-align: right;
}

.nf-footer-ecosystem {
  margin: 0 0 12px;
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .15em;
  line-height: 1.8;
}

.nf-footer-independent {
  margin: 0;
  color: var(--nf-muted);
  font-size: .85rem;
  line-height: 1.6;
}

/* Social links */

.nf-footer-social {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.nf-footer-social li {
  margin: 0;
  padding: 0;
}

.nf-footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--nf-line);
  border-radius: 50%;
  background: rgba(255, 255, 255, .55);
  color: var(--nf-muted);
  text-decoration: none;
  transition: color .18s ease, border-color .18s ease;
}

.nf-footer-social a:hover {
  border-color: var(--nf-accent);
  color: var(--nf-accent);
}

.nf-footer-social i {
  font-size: 18px;
  line-height: 1;
}

/* Navigation */

.nf-footer-divider {
  height: 1px;
  background: linear-gradient(
    90deg,
    var(--nf-accent) 0%,
    var(--nf-line) 75%
  );
}

.nf-footer-navigation {
  display: grid;
  grid-template-columns: 1fr 1.4fr 1.2fr;
  gap: 48px;
  padding: 40px 0 48px;
}

.nf-footer-navigation > nav {
  min-width: 0;
}

.nf-footer-title {
  margin: 0 0 20px;
  color: var(--nf-ink);
  font-family: inherit;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  line-height: 1.6;
  text-transform: uppercase;
}

.nf-footer-links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.nf-footer-links li {
  margin: 0;
  padding: 0;
}

.nf-footer-links li + li {
  margin-top: 13px;
}

.nf-footer-links a,
.nf-footer-legal a {
  color: var(--nf-muted);
  font-size: .92rem;
  line-height: 1.6;
  text-decoration: none;
}

.nf-footer-links a:hover,
.nf-footer-legal a:hover {
  color: var(--nf-accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.nf-footer a:focus-visible {
  outline: 2px solid var(--nf-accent);
  outline-offset: 5px;
}

/* Legal: copyright / DMCA / privacy */

.nf-footer-legal {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 24px;
  margin: 0;
  padding: 24px 0 30px;
  border-top: 1px solid var(--nf-line);
  color: var(--nf-muted);
  text-align: left;
}

.nf-footer-legal > * {
  min-width: 0;
}

.nf-footer-legal p {
  margin: 0;
  font-size: .75rem;
  line-height: 1.7;
}

.nf-footer-copyright {
  text-align: left;
}

.nf-footer-dmca {
  text-align: center;
}

.nf-footer-privacy {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.nf-footer-privacy a {
  font-size: .75rem;
}

/* Tablet and mobile legal layout */

@media (max-width: 991.98px) {
  .nf-footer-legal {
    grid-template-columns: 1fr;
    gap: 12px;
    text-align: center;
  }

  .nf-footer-copyright,
  .nf-footer-dmca {
    text-align: center;
  }

  .nf-footer-privacy {
    justify-content: center;
  }
}

/* Mobile footer */

@media (max-width: 767.98px) {
  .nf-footer {
    padding-top: 48px;
  }

  .nf-footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 30px;
  }

  .nf-footer-affiliation {
    padding-left: 0;
    border-left: 0;
    text-align: left;
  }

  .nf-footer-social {
    justify-content: flex-start;
    margin-top: 20px;
  }

  .nf-footer-navigation {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px 24px;
    padding: 32px 0 36px;
  }

  .nf-footer-navigation > nav:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 419.98px) {
  .nf-footer-navigation {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nf-footer-social a {
    transition: none;
  }
}