/* ==========================================================================
   ClearMedUk - Footer (Dark Contrast & Regulatory Governance)
   ========================================================================== */

/* ==========================================================================
   1. Main Footer Container
   ========================================================================== */
.site-footer {
  background-color: var(--dark-bg);
  color: var(--dark-text);
  margin-top: auto;
  transition: background-color var(--transition-smooth);
}

.footer-top {
  padding: clamp(3.5rem, 5vw, 4.5rem) 0 3.5rem;
}

/* ==========================================================================
   2. Multi-Column Navigation Grid
   ========================================================================== */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: clamp(2rem, 3.5vw, 3rem);
}

.footer-brand h3 {
  color: var(--dark-heading);
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--dark-text);
  opacity: 0.85;
  max-width: 380px;
  font-size: 0.8125rem;
  line-height: 1.65;
}

.footer-col h4 {
  color: var(--dark-heading);
  font-size: 0.9375rem;
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--dark-text);
  opacity: 0.85;
}

.footer-links a:hover {
  color: var(--dark-heading);
  opacity: 1;
}

/* ==========================================================================
   3. Governance Information (Clinical Regulatory Subtext)
   ========================================================================== */
.footer-governance {
  border-top: 1px solid var(--dark-border);
  padding: 1.75rem 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
}

.gov-block {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.gov-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.gov-item p:first-child {
  font-size: 0.6875rem; /* 11px */
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--dark-muted);
  line-height: 1.3;
  margin: 0;
}

.gov-item p:last-child {
  font-size: 0.8125rem; /* 13px */
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  color: var(--dark-text);
  opacity: 0.88;
  line-height: 1.45;
  margin: 0;
}

/* ==========================================================================
   4. Footer Bottom Strip
   ========================================================================== */
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem 2rem;
  padding: 1.25rem 0 2rem;
  border-top: 1px solid var(--dark-border, rgba(255, 255, 255, 0.12));
  font-size: 0.8125rem;
  color: var(--dark-muted, rgba(255, 255, 255, 0.7));
}

.footer-bottom-left,
.footer-bottom-right {
  flex: 1 1 240px;
}

.footer-bottom-right {
  text-align: right;
}

@media (max-width: 640px) {
  .footer-bottom-right {
    text-align: left;
  }
}

.footer-bottom p {
  font-size: 0.75rem;
  color: var(--dark-muted);
  line-height: 1.4;
  margin: 0;
}

/* Scroll to top */
.clearmed-scroll-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 1200;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: none;
  border-radius: 9999px;
  background: var(--brand-gradient);
  background-image: var(--brand-gradient);
  color: #ffffff;
  box-shadow: var(--shadow-glow, 0 10px 28px rgba(139, 62, 143, 0.3));
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease, box-shadow 0.2s ease;
}

.clearmed-scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.clearmed-scroll-top:hover,
.clearmed-scroll-top:focus {
  background: var(--brand-gradient-hover);
  background-image: var(--brand-gradient-hover);
  color: #ffffff;
  box-shadow: 0 14px 32px var(--brand-glow, rgba(139, 62, 143, 0.4));
  transform: translateY(-2px);
  outline: none;
}

.clearmed-scroll-top[hidden] {
  display: none !important;
}

.clearmed-scroll-top.is-visible[hidden] {
  display: inline-flex !important;
}

@media (max-width: 480px) {
  .clearmed-scroll-top {
    right: 0.85rem;
    bottom: 0.85rem;
    width: 42px;
    height: 42px;
  }
}