/* ============================================================
   VYH2 — FOOTER
   ============================================================ */

#footer {
  background: var(--color-primary-dark);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-20);
  position: relative;
  overflow: hidden;
}

.footer__contact-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

#footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(43,158,212,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43,158,212,0.03) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* ── MAIN FOOTER ── */
.footer__main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-10);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  z-index: 1;
}

/* ── BRAND COL ── */
.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.footer__logo-img {
  height: 40px;
  width: auto;
}

.footer__logo-name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--font-extrabold);
  color: var(--color-text-primary);
  letter-spacing: var(--tracking-wide);
}

.footer__logo-name span { color: var(--color-accent); }

.footer__tagline {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 260px;
}

.footer__claim {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--color-accent), var(--color-tech-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── SOCIAL ── */
.footer__social {
  display: flex;
  gap: var(--space-3);
}

.footer__social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-glass-light);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: var(--transition-fast);
  text-decoration: none;
}

.footer__social-link svg { width: 16px; height: 16px; }

.footer__social-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(245,166,35,0.08);
  transform: translateY(-2px);
}

/* ── NAV COLS ── */
.footer__nav-col { display: flex; flex-direction: column; gap: var(--space-5); }

.footer__nav-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__nav-link {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--duration-fast);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}

.footer__nav-link::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-text-muted);
  flex-shrink: 0;
  transition: background var(--duration-fast);
}

.footer__nav-link:hover {
  color: var(--color-accent);
}

.footer__nav-link:hover::before {
  background: var(--color-accent);
}

/* ── CONTACT COL ── */
.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.footer__contact-item:hover { color: var(--color-accent); }

.footer__contact-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ── BOTTOM BAR ── */
.footer__bottom {
  position: relative;
  z-index: 1;
  padding-block: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer__copy {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-5);
}

.footer__bottom-link {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
  text-decoration: none;
}

.footer__bottom-link:hover { color: var(--color-accent); }

/* ── TECH BADGE ── */
.footer__tech-badge {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.footer__tech-badge svg { width: 14px; height: 14px; color: var(--color-accent); }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .footer__main { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
  .footer__brand { grid-column: span 2; }
}

@media (max-width: 640px) {
  .footer__main { grid-template-columns: 1fr; }
  .footer__brand { grid-column: span 1; }
  .footer__bottom { flex-direction: column; text-align: center; }
}