/* ========================================
   Footer — structured, lightweight, anchor-ready
   ======================================== */
.footer {
  position: relative;
  overflow: hidden;
  color: rgba(255, 255, 255, 0.74);
  background:
    radial-gradient(circle at top right, color-mix(in srgb, var(--color-accent) 12%, transparent), transparent 20%),
    radial-gradient(circle at bottom left, color-mix(in srgb, var(--color-accent) 10%, transparent), transparent 24%),
    var(--footer-bg);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--surface-texture);
  opacity: 0.35;
  pointer-events: none;
}

.footer-inner {
  position: relative;
  width: min(100%, var(--max-width));
  margin-inline: auto;
  padding: 3.25rem var(--side-padding) 1.3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.45fr 0.8fr 0.8fr 0.95fr;
  gap: 2rem;
  align-items: start;
}

.footer-brand-block {
  max-width: 28rem;
}

.footer-kicker {
  display: inline-block;
  margin-bottom: 0.95rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-white);
}

.footer-brand span {
  color: var(--color-accent);
}

.footer-copy {
  max-width: 24rem;
  margin: 1rem 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.footer-column {
  min-width: 0;
}

.footer-heading {
  margin: 0 0 0.95rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.42);
}

.footer-links {
  display: grid;
  gap: 0.72rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li {
  margin: 0;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.86);
  text-decoration: none;
  transition: color var(--transition);
  word-break: break-word;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--color-accent);
}

.footer-links a:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--color-accent) 90%, transparent);
  outline-offset: 4px;
  border-radius: 4px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.52);
}

.footer-bottom p {
  margin: 0;
}

@media (max-width: 980px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .footer-inner {
    padding-top: 2.7rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.6rem;
  }

  .footer-bottom {
    flex-direction: column;
  }
}