/* ===== Premium fintech footer ===== */
.site-footer {
  --ft-bg: #1a1a1a;
  --ft-text: #e5e5e5;
  --ft-muted: #a3a3a3;
  --ft-accent: #7c3aed;
  --ft-accent-end: #a78bfa;
  --ft-font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.site-footer {
  position: relative;
  background: var(--ft-bg);
  font-family: var(--ft-font);
  color: var(--ft-text);
  overflow: hidden;
}

/* Purple gradient top border */
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ft-accent) 0%, var(--ft-accent-end) 50%, var(--ft-accent) 100%);
  opacity: 0.9;
}

/* Large SWIX watermark */
.site-footer::after {
  content: 'SWIX';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(8rem, 25vw, 18rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--ft-text);
  opacity: 0.04;
  pointer-events: none;
  white-space: nowrap;
}

.footer-inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 3.5rem 1.25rem 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr 0.9fr;
    gap: 2rem;
  }
}

/* Left: branding + newsletter */
.footer-brand {
  max-width: 22rem;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  background: linear-gradient(135deg, var(--ft-accent) 0%, var(--ft-accent-end) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-desc {
  font-size: 0.9375rem;
  color: var(--ft-muted);
  line-height: 1.6;
  margin: 0 0 1.5rem;
}

.footer-newsletter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.footer-newsletter input {
  flex: 1;
  min-width: 180px;
  padding: 0.65rem 1rem;
  font-family: var(--ft-font);
  font-size: 0.9375rem;
  color: var(--ft-text);
  background: #2d2d2d;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

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

.footer-newsletter input:focus {
  outline: none;
  border-color: var(--ft-accent);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
}

.footer-newsletter-btn {
  padding: 0.65rem 1.25rem;
  font-family: var(--ft-font);
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--ft-accent) 0%, #6d28d9 100%);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.footer-newsletter-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
}

.footer-newsletter-btn:focus-visible {
  outline: 2px solid var(--ft-accent);
  outline-offset: 2px;
}

.footer-newsletter-note {
  font-size: 0.8125rem;
  color: var(--ft-muted);
  line-height: 1.5;
  margin: 0;
}

/* Link columns */
.footer-col h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 1rem;
  letter-spacing: 0.02em;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  font-size: 0.9375rem;
  color: var(--ft-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--ft-accent);
}

/* Social */
.footer-social h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 1rem;
  letter-spacing: 0.02em;
}

.footer-social-links {
  display: flex;
  gap: 0.5rem;
}

.footer-social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: #2d2d2d;
  border-radius: 10px;
  color: var(--ft-muted);
  transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.footer-social-links a:hover {
  color: var(--ft-accent);
  background: rgba(124, 58, 237, 0.15);
  transform: translateY(-2px);
}

.footer-social-links a:focus-visible {
  outline: 2px solid var(--ft-accent);
  outline-offset: 2px;
}

.footer-social-links svg {
  width: 20px;
  height: 20px;
}

/* Bottom bar */
.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}

.footer-copy {
  font-size: 0.875rem;
  color: var(--ft-muted);
  margin: 0;
}

/* Scroll to top */
.footer-scroll-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--ft-accent) 0%, #6d28d9 100%);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  z-index: 100;
}

.footer-scroll-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.5);
}

.footer-scroll-top:focus-visible {
  outline: 2px solid var(--ft-accent);
  outline-offset: 2px;
}

.footer-scroll-top svg {
  width: 22px;
  height: 22px;
}