/* ==========================================================================
   u.cash - Footer Component
   Multi-column footer with gold accent, responsive stacking.
   ========================================================================== */

/* ---- Footer Container ---- */

.site-footer {
  position: relative;
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-gold-primary);
  padding-top: var(--space-4xl);
  padding-bottom: 0;
}

/* Decorative top gradient */
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--color-gold-primary) 20%,
    var(--color-gold-light) 50%,
    var(--color-gold-primary) 80%,
    transparent 100%
  );
}

/* ---- Footer Inner ---- */

.footer-inner {
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* ---- Footer Top ---- */

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

/* ---- Footer Brand Column ---- */

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 320px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.footer-logo svg,
.footer-logo img {
  height: 36px;
  width: auto;
}

.footer-logo-text {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
}

.footer-logo-text span {
  color: var(--color-gold-primary);
}

.footer-description {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  line-height: var(--leading-relaxed);
}

/* ---- Footer Navigation Columns ---- */

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.footer-nav-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-nav-title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

.footer-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-nav-links a {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-nav-links a:hover {
  color: var(--color-gold-primary);
}

/* ---- Footer Social Links ---- */

.footer-social {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-glass-bg);
  border: 1px solid var(--color-glass-border);
  color: var(--color-text-tertiary);
  text-decoration: none;
  transition:
    color var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.footer-social a:hover {
  color: var(--color-gold-primary);
  background: var(--color-gold-subtle);
  border-color: var(--color-gold-primary);
  transform: translateY(-2px);
}

.footer-social a svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* ---- Footer Newsletter ---- */

.footer-newsletter {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-newsletter-title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
}

.footer-newsletter-form {
  display: flex;
  gap: var(--space-sm);
}

.footer-newsletter-form input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  font-size: var(--text-sm);
  background: var(--color-glass-bg);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  outline: none;
  transition: border-color var(--transition-fast);
}

.footer-newsletter-form input::placeholder {
  color: var(--color-text-muted);
}

.footer-newsletter-form input:focus {
  border-color: var(--color-gold-primary);
}

.footer-newsletter-form button {
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  background: var(--color-gold-primary);
  color: #000000;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  white-space: nowrap;
}

.footer-newsletter-form button:hover {
  background: var(--color-gold-light);
}

/* ---- Footer Bottom Bar ---- */

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  text-align: center;
}

.footer-copyright {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.footer-copyright a {
  color: var(--color-gold-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-copyright a:hover {
  color: var(--color-gold-light);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-bottom-links a {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--color-gold-primary);
}

/* ---- Responsive ---- */

@media (min-width: 576px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 1.5fr 2fr;
    gap: var(--space-3xl);
  }

  .footer-nav {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 992px) {
  .footer-top {
    grid-template-columns: 1.5fr 3fr 1.5fr;
  }

  .footer-nav {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .footer-top {
    grid-template-columns: 1.5fr 2fr 1fr 1.5fr;
  }

  .footer-nav {
    grid-template-columns: repeat(3, 1fr);
  }
}