/* ============================================
   JUPITER PLANET XXL – Design 7: Dark Blue Tech
   footer.css – Footer Styles
   ============================================ */

/* ── Footer ── */
.footer {
  position: relative;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  overflow: hidden;
}

/* Dot grid pattern for footer */
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle, rgba(148,163,184,0.04) 1px, transparent 1px);
  background-size: 20px 20px;
  pointer-events: none;
}

.footer__main {
  position: relative;
  padding: var(--space-20) 0 var(--space-12);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--space-12);
}

/* ── Footer Brand Column ── */
.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;
  color: var(--color-heading);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
}

.footer__logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-size: var(--font-size-base);
}

.footer__logo span {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer__brand p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  line-height: 1.8;
}

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

.footer__social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
}

.footer__social a:hover {
  color: var(--color-primary);
  border-color: rgba(var(--color-primary-rgb), 0.3);
  background: rgba(var(--color-primary-rgb), 0.1);
  box-shadow: 0 0 20px rgba(var(--color-primary-rgb), 0.2);
  transform: translateY(-2px);
}

/* ── Footer Link Columns ── */
.footer__column h4 {
  color: var(--color-heading);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semi);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-5);
}

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

.footer__column ul a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.footer__column ul a i {
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  opacity: 0;
  transform: translateX(-4px);
  transition: all var(--transition-fast);
}

.footer__column ul a:hover {
  color: var(--color-heading);
}

.footer__column ul a:hover i {
  opacity: 1;
  transform: translateX(0);
}

/* ── Newsletter Column ── */
.footer__newsletter h4 {
  color: var(--color-heading);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semi);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
}

.footer__newsletter p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-5);
  line-height: 1.7;
}

.footer__newsletter-form {
  display: flex;
  gap: var(--space-2);
}

.footer__newsletter-form input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: var(--color-heading);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--transition-fast);
}

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

.footer__newsletter-form input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
}

.footer__newsletter-form button {
  padding: var(--space-3) var(--space-5);
  background: var(--gradient-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semi);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  box-shadow: 0 2px 12px rgba(var(--color-primary-rgb), 0.3);
}

.footer__newsletter-form button:hover {
  box-shadow: 0 4px 20px rgba(var(--color-primary-rgb), 0.5);
  transform: translateY(-1px);
}

/* ── Footer Bottom ── */
.footer__bottom {
  position: relative;
  padding: var(--space-6) 0;
  border-top: 1px solid var(--color-border);
}

.footer__bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__copyright {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.footer__copyright strong {
  color: var(--color-text);
  font-weight: var(--font-weight-semi);
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-6);
}

.footer__bottom-links a {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer__bottom-links a:hover {
  color: var(--color-primary);
}

/* ── Footer Contact Info ── */
.footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.footer__contact-item i {
  color: var(--color-primary);
  width: 16px;
  text-align: center;
  font-size: var(--font-size-sm);
}

/* ── Responsive Footer ── */
@media (max-width: 900px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }
}

@media (max-width: 600px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer__newsletter-form {
    flex-direction: column;
  }

  .footer__bottom .container {
    flex-direction: column;
    text-align: center;
  }

  .footer__bottom-links {
    justify-content: center;
  }
}