/* ============================================================
   VBJ UI POLISH — nav visibility + mobile hamburger
   ONLY additive overrides. No visual redesign.
   ============================================================ */

/* ---------- 1. INNER-PAGE NAV VISIBILITY ---------- */
/* Homepage keeps its transparent-glass nav (dark hero behind).
   Inner pages have .hero-page (navy) at top followed by white body.
   The JS adds body.inner-page on any page without .hero, so nav is
   guaranteed readable everywhere. */
body.inner-page .nav {
  background: rgba(255,255,255,.95) !important;
  border-bottom: 1px solid rgba(0,0,0,.08) !important;
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
}
body.inner-page .nav .brand,
body.inner-page .nav .brand-text .name,
body.inner-page .nav .brand-text .clinic,
body.inner-page .nav .brand-text .sub {
  color: var(--ink, #001a33) !important;
}
body.inner-page .nav .nav-links a {
  color: var(--ink, #001a33) !important;
}
body.inner-page .nav .nav-links a:hover,
body.inner-page .nav .nav-links a.active {
  color: var(--navy, #003366) !important;
}
body.inner-page .nav .nav-links a.btn {
  color: #fff !important;
}

/* ---------- 2. HAMBURGER BUTTON ---------- */
.nav-hamburger {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  margin-left: 8px;
  flex-shrink: 0;
  color: #fff;
  transition: background .2s ease, border-color .2s ease;
}
.nav-hamburger:hover { background: rgba(255,255,255,.1); }
.nav-hamburger:focus-visible {
  outline: 2px solid var(--sky, #0ea5e9);
  outline-offset: 2px;
}
.nav-hamburger .bar {
  position: absolute;
  left: 12px;
  right: 12px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform .25s ease, opacity .2s ease, top .25s ease;
}
.nav-hamburger .bar:nth-child(1) { top: 14px; }
.nav-hamburger .bar:nth-child(2) { top: 21px; }
.nav-hamburger .bar:nth-child(3) { top: 28px; }
.nav-hamburger[aria-expanded="true"] .bar:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav-hamburger[aria-expanded="true"] .bar:nth-child(2) { opacity: 0; }
.nav-hamburger[aria-expanded="true"] .bar:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* Scrolled / inner-page → dark hamburger */
.nav.scrolled .nav-hamburger,
body.inner-page .nav .nav-hamburger {
  color: var(--ink, #001a33);
  border-color: rgba(0,0,0,.15);
}

/* ---------- 3. MOBILE MENU OVERLAY ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,26,51,.98);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  color: #fff;
  padding: 88px 24px 40px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .25s ease, visibility .25s ease, transform .25s ease;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-menu[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mobile-menu[aria-hidden="true"] { pointer-events: none; }
.mobile-menu-inner {
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.mobile-menu a {
  display: block;
  padding: 16px 16px;
  color: #fff;
  text-decoration: none;
  font-size: 1.05rem;
  font-weight: 500;
  border-radius: 10px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: background .2s ease, color .2s ease;
}
.mobile-menu a:hover, .mobile-menu a:focus-visible {
  background: rgba(255,255,255,.06);
  outline: none;
}
.mobile-menu a.active { color: #67e8f9; }
.mobile-menu a.active::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: #67e8f9;
  border-radius: 50%;
  margin-right: 10px;
  transform: translateY(-2px);
}
.mobile-menu .cta-book {
  margin-top: 20px;
  background: #fff;
  color: #001a33;
  text-align: center;
  border: none;
  font-weight: 700;
  border-radius: 999px;
  padding: 14px 20px;
}
.mobile-menu .cta-book:hover { background: #f4f9ff; color: #001a33; }
.mobile-menu .cta-wa {
  margin-top: 8px;
  background: #25D366;
  color: #fff;
  text-align: center;
  border: none;
  font-weight: 700;
  border-radius: 999px;
  padding: 14px 20px;
}
.mobile-menu .cta-wa:hover { background: #1fbf5a; color: #fff; }

/* Body scroll lock */
body.menu-open { overflow: hidden; }

/* ---------- 4. RESPONSIVE BREAKPOINTS ---------- */
@media (max-width: 900px) {
  .nav-links { display: none !important; }
  .nav-hamburger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 420px) {
  .nav .brand-text .sub { display: none; }
}

@media (max-width: 360px) {
  .nav-hamburger { margin-left: 4px; }
}

/* ---------- 5. REDUCED MOTION ---------- */
@media (prefers-reduced-motion: reduce) {
  .mobile-menu,
  .mobile-menu a,
  .nav-hamburger,
  .nav-hamburger .bar {
    transition: none !important;
  }
}