/* ==========================================================================
   Ranaux Healthcare — Layout (header, nav, footer, grid, sections)
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.section {
  padding-block: var(--space-2xl);
}

.section--tight {
  padding-block: var(--space-xl);
}

.section--alt {
  background-color: var(--color-surface-alt);
}

.section--primary {
  background-color: var(--color-primary-darker);
  color: var(--color-text-inverse);
}

.section-head {
  max-width: 720px;
  margin-bottom: var(--space-lg);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  background: var(--color-accent-light);
  padding: 0.35em 0.9em;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-sm);
}

.section-head p {
  margin-top: var(--space-xs);
  font-size: var(--fs-md);
}

/* ---- Grid utilities ---- */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

@media (max-width: 900px) {
  .split {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Header / Nav
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

/* The blurred background lives on a pseudo-element rather than directly on
   .site-header. backdrop-filter (like transform/filter/perspective) makes an
   element the containing block for any position:fixed descendant — which
   would trap the mobile off-canvas menu (a fixed child, via .nav-menu)
   inside the header's own ~76px box instead of the full viewport, breaking
   it open into a tiny sliver instead of a full-screen panel. Keeping
   backdrop-filter off .site-header itself avoids that entirely. */
.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(250, 249, 246, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: background-color var(--transition);
  z-index: 0;
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

.site-header.is-scrolled::before {
  background: rgba(250, 249, 246, 0.98);
}

.navbar {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-md);
}

.wordmark {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.wordmark-logo {
  height: 48px;
  width: auto;
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-links a {
  color: var(--color-text);
  font-weight: 600;
  font-size: var(--fs-sm);
  padding: 0.5rem 0.1rem;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--color-accent);
  transition: right var(--transition);
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after {
  right: 0;
}

.nav-links a[aria-current="page"] {
  color: var(--color-primary-dark);
}

/* The one nav item that's a conversion action rather than a page label —
   stands out from its siblings so it doesn't get lost next to "Enquire Now". */
.nav-links a.nav-link-highlight {
  color: var(--color-accent-dark);
  font-weight: 800;
}

.nav-links a.nav-link-highlight::after {
  background: var(--color-accent-dark);
}

.nav-cta {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
}

.nav-toggle:hover {
  background: var(--color-primary-light);
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background: var(--color-primary-darker);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-lg) var(--space-md);
    gap: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    overflow-y: auto;
  }

  .nav-menu.is-open {
    transform: translateX(0);
  }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-xs);
  }

  .nav-links a {
    display: block;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: var(--fs-md);
  }

  .nav-links a:hover,
  .nav-links a[aria-current="page"] {
    background: var(--color-primary-light);
  }

  .nav-links a::after {
    display: none;
  }

  .nav-cta {
    width: 100%;
  }

  .nav-cta .btn {
    width: 100%;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--color-primary-darker);
  color: var(--color-text-inverse);
  padding-block: var(--space-2xl) var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-col h4 {
  color: #fff;
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.footer-col p,
.footer-col a {
  color: rgba(245, 248, 247, 0.72);
  font-size: var(--fs-sm);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col a:hover {
  color: #fff;
}

.footer-wordmark {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 0.65rem 1rem;
  margin-bottom: var(--space-sm);
}

.footer-logo {
  height: 52px;
  width: auto;
  display: block;
}

.footer-certs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--space-sm);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding-top: var(--space-lg);
  font-size: var(--fs-xs);
  color: rgba(245, 248, 247, 0.6);
}

.footer-socials {
  display: flex;
  gap: 0.75rem;
}

.footer-socials a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.75rem;
}

.footer-socials a:hover {
  background: var(--color-accent);
}