/* ==========================================================================
   NOVA DENTAL — NAVBAR v3 (cinematic, transparent)
   No bars, no boxes: brand left, quiet links centred with a glowing marker
   gliding under the active one, ghost booking button right. A soft top
   "letterbox" fade (not a panel) keeps it legible over moving content.
   Loaded after every other stylesheet; scoped to .navbar so it wins over
   the older nav rules in style.css / film-strip.css.
   ========================================================================== */

.navbar {
  --nav-h: 76px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: var(--nav-h);
  margin: 0;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  mask-image: none;
  -webkit-mask-image: none;
  border: none;
  box-shadow: none;
  pointer-events: none;            /* only the actual controls take the mouse */
  isolation: isolate;
  transition: height .5s var(--ease-smooth);
}

/* letterbox fade: deep violet at the very top, gone by ~140px */
.navbar::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 150px;
  z-index: -1;
  background: linear-gradient(180deg,
      rgba(18, 12, 52, .62) 0%,
      rgba(18, 12, 52, .30) 45%,
      rgba(18, 12, 52, 0) 100%);
  opacity: .55;
  pointer-events: none;
  transition: opacity .6s var(--ease-smooth);
}

.navbar.scrolled {
  --nav-h: 66px;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  mask-image: none;
  -webkit-mask-image: none;
}
.navbar.scrolled::before { opacity: 1; }

.navbar .nav-container {
  width: 100%;
  max-width: none;
  height: 100%;
  margin: 0;
  padding: 0 clamp(20px, 3.4vw, 64px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 24px;
}

.navbar .brand-logo,
.navbar .nav-center,
.navbar .nav-end > * { pointer-events: auto; }

/* --------------------------------------------------------------------------
   Brand (left)
   -------------------------------------------------------------------------- */
.navbar .brand-logo {
  justify-self: start;
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.navbar .brand-symbol {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  background: none;
  border: none;
  box-shadow: none;
  padding: 0;
  transition: transform .6s var(--ease-spring);
}

.navbar .brand-tooth-svg {
  width: 34px;
  height: 34px;
  filter: drop-shadow(0 0 10px rgba(139, 124, 255, .55));
  transition: filter .4s ease;
}

.navbar .brand-logo:hover .brand-symbol { transform: rotate(-8deg); }
.navbar .brand-logo:hover .brand-tooth-svg {
  transform: none;
  filter: drop-shadow(0 0 12px rgba(255, 143, 177, .65));
}

.navbar .brand-text {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.navbar .brand-title {
  display: flex;
  align-items: baseline;
  gap: .45em;
  font-family: var(--font-brand);
  font-size: 15px;
  line-height: 1;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: #fff;
  text-shadow: 0 1px 14px rgba(10, 4, 40, .55);
}
.navbar .brand-title-strong { font-weight: 800; }
.navbar .brand-title-light  { font-weight: 300; color: var(--ink-2); }

.navbar .brand-tagline {
  margin: 0;
  font-size: 9px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(199, 184, 255, .62);
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   Links (centre)
   -------------------------------------------------------------------------- */
.navbar .nav-center { justify-self: center; }

.navbar .nav-links {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: none;
  border: none;
  box-shadow: none;
}

.navbar .nav-link,
.navbar .nav-link:hover,
.navbar .nav-link.active {
  position: relative;
  z-index: 1;
  display: inline-flex;
  flex-direction: row;
  align-items: baseline;
  gap: 7px;
  padding: 12px 16px;
  border-radius: 0;
  overflow: visible;
  font-family: var(--font-body);
  font-size: 11.5px;
  font-weight: 500;                /* fixed weight: marker widths never jump */
  letter-spacing: .2em;
  text-transform: uppercase;
  line-height: 1;
  color: rgba(246, 243, 255, .62);
  opacity: 1;
  text-shadow: 0 1px 12px rgba(10, 4, 40, .6);
  text-decoration: none;
  white-space: nowrap;
  transition: color .35s ease;
}
.navbar .nav-link:hover,
.navbar .nav-link.active { color: #fff; }
.navbar .nav-link::after { display: none; }

.navbar .nav-index {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .08em;
  font-variant-numeric: tabular-nums;
  color: rgba(199, 184, 255, .38);
  transition: color .35s ease;
}
.navbar .nav-link:hover .nav-index { color: rgba(214, 204, 255, .8); }
.navbar .nav-link.active .nav-index { color: var(--accent); }

/* the marker: micro-interactions.js slides this element (x + width) to the
   hovered/active link; it is invisible except for a glowing line at its foot */
.navbar .nav-pill-indicator {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  height: auto;
  z-index: 0;
  background: none;
  border: none;
  box-shadow: none;
  pointer-events: none;
  list-style: none;
}
.navbar .nav-pill-indicator::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 22px;
  height: 1.5px;
  margin-left: -11px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  box-shadow: 0 0 10px 1px rgba(255, 143, 177, .7);
}

.navbar .nav-mobile-cta { display: none; }

/* --------------------------------------------------------------------------
   Booking (right) — ghost button
   -------------------------------------------------------------------------- */
.navbar .nav-end {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 12px;
}

.navbar .btn-book-nav {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  height: 42px;
  padding: 0 6px 0 20px;
  border: none;
  border-radius: 999px;
  background: rgba(255, 255, 255, .02);
  color: #fff;
  font-family: var(--font-body);
  white-space: nowrap;
  box-shadow: inset 0 0 0 1px rgba(214, 204, 255, .38);
  transition: color .45s var(--ease-smooth), box-shadow .45s ease, transform .35s var(--ease-smooth);
}
.navbar .btn-book-nav span {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
}

/* fill wipes up from below on hover */
.navbar .btn-book-nav::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(135deg, #F3EFFF 0%, #C7B8FF 55%, #FFB4CB 100%);
  transform: translateY(101%);
  transition: transform .55s var(--ease-smooth);
}
.navbar .btn-book-nav:hover {
  background: rgba(255, 255, 255, .02);
  color: #1A1150;
  transform: none;
  box-shadow: inset 0 0 0 1px rgba(214, 204, 255, 0), 0 12px 30px -12px rgba(255, 143, 177, .8);
}
.navbar .btn-book-nav:hover::before { transform: translateY(0); }

.navbar .btn-book-icon {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .92);
  color: #1A1150;
  transition: transform .5s var(--ease-spring), background .45s ease, color .45s ease;
}
.navbar .btn-book-icon svg,
.navbar .btn-book-nav .btn-arrow-svg { color: currentColor; transform: none; transition: none; }
.navbar .btn-book-nav:hover .btn-book-icon {
  transform: rotate(45deg);
  background: #1A1150;
  color: #fff;
}

/* --------------------------------------------------------------------------
   Scroll progress: hairline across the very top of the screen
   -------------------------------------------------------------------------- */
.navbar .nav-progress {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}
.navbar .nav-progress-bar {
  display: block;
  width: 100%;
  height: 100%;
  transform-origin: left center;
  transform: scaleX(0);
  background: linear-gradient(90deg, rgba(139, 124, 255, .2) 0%, var(--primary) 60%, var(--accent) 100%);
  box-shadow: 0 0 10px rgba(255, 143, 177, .6);
}

/* --------------------------------------------------------------------------
   Burger (mobile, right)
   -------------------------------------------------------------------------- */
.navbar .mobile-menu-btn {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  box-shadow: inset 0 0 0 1px rgba(214, 204, 255, .34);
  color: #fff;
}
.navbar .burger-line {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 18px;
  height: 1.5px;
  margin: -0.75px 0 0 -9px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .45s var(--ease-smooth), width .45s var(--ease-smooth);
}
.navbar .burger-line:first-child { transform: translateY(-3.5px); }
.navbar .burger-line:last-child  { transform: translateY(3.5px); width: 12px; }
.navbar.menu-open .burger-line:first-child { transform: rotate(45deg); }
.navbar.menu-open .burger-line:last-child  { transform: rotate(-45deg); width: 18px; }

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1240px) {
  .navbar .brand-tagline { display: none; }
}

@media (max-width: 1100px) and (min-width: 901px) {
  .navbar .nav-index { display: none; }
  .navbar .nav-link, .navbar .nav-link:hover, .navbar .nav-link.active { padding: 12px 12px; }
}

@media (max-width: 1000px) and (min-width: 901px) {
  .navbar .btn-book-label { display: none; }
  .navbar .btn-book-nav--ghost { padding: 0 6px; }
}

@media (max-width: 900px) {
  .navbar { --nav-h: 64px; }
  .navbar.scrolled { --nav-h: 60px; }
  .navbar::before { opacity: 1; height: 120px; }
  .navbar .nav-container { padding: 0 16px; grid-template-columns: minmax(0, 1fr) auto; }

  .navbar .btn-book-nav--ghost { display: none; }
  .navbar .mobile-menu-btn { display: block; }
  .navbar .brand-title { font-size: 14px; letter-spacing: .24em; }

  /* the centre slot holds the full-screen menu; it takes no room in the bar */
  .navbar .nav-center { position: absolute; width: 0; height: 0; }

  .navbar .nav-links,
  .navbar .nav-links.mobile-open {
    position: fixed;
    inset: 0;
    z-index: -2;
    width: 100vw;
    height: 100dvh;
    margin: 0;
    padding: 104px 28px max(36px, env(safe-area-inset-bottom));
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    gap: 0;
    background:
      radial-gradient(90% 55% at 85% 0%, rgba(255, 143, 177, .18), transparent 65%),
      radial-gradient(90% 60% at 0% 100%, rgba(139, 124, 255, .36), transparent 65%),
      rgba(22, 15, 62, .97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .4s var(--ease-smooth), visibility 0s linear .4s;
  }
  .navbar .nav-links.mobile-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity .4s var(--ease-smooth), visibility 0s;
  }

  .navbar .nav-links > li {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .45s var(--ease-smooth), transform .6s var(--ease-smooth);
  }
  .navbar .nav-links.mobile-open > li { opacity: 1; transform: none; }
  .navbar .nav-links.mobile-open > li:nth-child(1) { transition-delay: .06s; }
  .navbar .nav-links.mobile-open > li:nth-child(2) { transition-delay: .11s; }
  .navbar .nav-links.mobile-open > li:nth-child(3) { transition-delay: .16s; }
  .navbar .nav-links.mobile-open > li:nth-child(4) { transition-delay: .21s; }
  .navbar .nav-links.mobile-open > li:nth-child(6) { transition-delay: .28s; }

  .navbar .nav-link,
  .navbar .nav-link:hover,
  .navbar .nav-link.active {
    display: flex;
    width: 100%;
    align-items: baseline;
    gap: 16px;
    padding: 18px 2px;
    border-bottom: 1px solid rgba(199, 184, 255, .13);
    font-size: clamp(28px, 8.5vw, 40px);
    font-weight: 600;
    letter-spacing: -.02em;
    text-transform: none;
  }
  .navbar .nav-index { display: inline; font-size: 12px; letter-spacing: .1em; }
  .navbar .nav-pill-indicator { display: none; }

  .navbar .nav-mobile-cta { display: block; margin-top: 34px; }
  .navbar .btn-book-nav--menu {
    display: inline-flex;
    width: 100%;
    height: 58px;
    justify-content: space-between;
    padding: 0 7px 0 22px;
    border-radius: 999px;
    background: linear-gradient(135deg, #F3EFFF 0%, #C7B8FF 55%, #FFB4CB 100%);
    color: #1A1150;
    box-shadow: 0 14px 34px -14px rgba(255, 143, 177, .85);
  }
  .navbar .btn-book-nav--menu::before { display: none; }
  .navbar .btn-book-nav--menu span { font-size: 13px; }
  .navbar .btn-book-nav--menu .btn-book-icon { width: 44px; height: 44px; background: #1A1150; color: #fff; }
}

html.nav-open,
html.nav-open body { overflow: hidden; }

@media (prefers-reduced-motion: reduce) {
  .navbar,
  .navbar *,
  .navbar::before,
  .navbar *::before,
  .navbar *::after { transition: none !important; }
}