PixelPilot: Instructions file for GitHub Copilot

UI/UX Footer System 2026

Full footer system per design language. Every footer is a complete component: multi-column layout, back-to-top, language selector (droptop), copyright, legal links, dark/light toggle placement, newsletter signup, mobile stacking. role="contentinfo" on every footer — no exceptions.

FOOTER ANATOMY (all languages)

┌─────────────────────────────────────────────────────────┐
│  UPPER FOOTER                                           │
│  [Logo + Tagline] [Nav col 1] [Nav col 2] [Social/CTA] │
├─────────────────────────────────────────────────────────┤
│  LOWER FOOTER                                           │
│  [© Year Brand] [Legal links] [Language] [Theme toggle] │
└─────────────────────────────────────────────────────────┘

Mobile stacking order (top → bottom):

1. Logo + tagline
2. Newsletter / CTA (if present)
3. Navigation columns (each becomes accordion or flat list)
4. Social links
5. Divider
6. Copyright + legal links
7. Language selector + theme toggle

UNIVERSAL FOOTER CSS (base — extend per language)

/* ── FOOTER BASE ──────────────────────────────────────── */
.site-footer {
  background: var(--footer-bg, var(--surface));
  color: var(--footer-text, var(--text-2));
  border-top: 1px solid var(--border);
  font-size: var(--text-sm);
}

.footer-upper {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  padding: var(--space-12) 0;
}
@media (min-width: 768px) {
  .footer-upper {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-8);
    padding: var(--space-16) 0;
  }
}

.footer-lower {
  border-top: 1px solid var(--border);
  padding: var(--space-6) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: flex-start;
}
@media (min-width: 768px) {
  .footer-lower {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* Brand column */
.footer-brand { display: flex; flex-direction: column; gap: var(--space-4); }
.footer-logo  { font-family: var(--font-display); font-size: var(--text-xl);
  font-weight: 700; color: var(--text); }
.footer-tagline { font-size: var(--text-sm); color: var(--muted); max-width: 280px;
  line-height: 1.6; }

/* Nav columns */
.footer-nav { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-nav-title {
  font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text); margin-bottom: var(--space-1);
}
.footer-nav-link {
  color: var(--footer-text, var(--text-2));
  transition: color var(--transition-micro);
  line-height: 1.4;
}
.footer-nav-link:hover { color: var(--text); }

/* Social icons row */
.footer-social { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.footer-social-link {
  width: 40px; height: 40px; display: grid; place-items: center;
  border: 1px solid var(--border); border-radius: var(--radius-md);
  color: var(--text-2); transition: color var(--transition-micro),
    border-color var(--transition-micro), background var(--transition-micro);
}
.footer-social-link:hover { color: var(--text); background: var(--surface-up);
  border-color: var(--text-2); }
.footer-social-link svg { width: 16px; height: 16px; }

/* Copyright */
.footer-copy { font-size: var(--text-xs); color: var(--muted); }

/* Legal links */
.footer-legal { display: flex; gap: var(--space-4); flex-wrap: wrap;
  font-size: var(--text-xs); }
.footer-legal a { color: var(--muted); transition: color var(--transition-micro); }
.footer-legal a:hover { color: var(--text); }

/* Lower right: language + theme toggle */
.footer-lower-right {
  display: flex; align-items: center; gap: var(--space-4); flex-shrink: 0;
}

/* Newsletter form */
.footer-newsletter { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-newsletter-form {
  display: flex; gap: var(--space-2);
  max-width: 340px;
}
.footer-newsletter-input {
  flex: 1; padding: 10px 16px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-md); font-size: var(--text-sm);
  color: var(--text); font-family: var(--font-body);
  transition: border-color var(--transition-micro);
}
.footer-newsletter-input:focus { border-color: var(--accent); outline: none; }
.footer-newsletter-input::placeholder { color: var(--muted); }
.footer-newsletter-btn {
  flex-shrink: 0; padding: 10px 20px;
  background: var(--accent); color: white;
  border: none; border-radius: var(--radius-md);
  font-size: var(--text-sm); font-weight: 600; cursor: pointer;
  transition: background var(--transition-micro);
  white-space: nowrap;
}
.footer-newsletter-btn:hover {
  background: color-mix(in srgb, var(--accent) 85%, black);
}