/* ------- Balloon canvas: floats above everything, never blocks clicks ---- */
#balloons {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 60;
  pointer-events: none;
}

/* --------------------------------- Nav ---------------------------------- */
/* MOBILE-FIRST: hamburger + balloon dropdown is the default nav on small
   screens; the full inline nav is a progressive enhancement at 901px+. */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(16px, 4vw, 56px);
  transition: background 0.4s, box-shadow 0.4s, backdrop-filter 0.4s;
}
.nav.scrolled {
  background: rgba(15, 10, 24, 0.28);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  box-shadow:
    inset 0 -1px 0 rgba(255, 255, 255, 0.08),
    0 1px 0 rgba(212, 175, 55, 0.22),
    0 12px 40px rgba(10, 6, 18, 0.35);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.nav-brand img { height: 38px; width: 38px; object-fit: contain; }
.nav-brand .brand-k {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--gold);
  line-height: 1.1;
}
.nav-brand .brand-sub {
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-on-dark);
  opacity: 0.9;
}
@media (min-width: 561px) {
  .nav-brand { gap: 12px; }
  .nav-brand img { height: 46px; width: 46px; }
  .nav-brand .brand-k { font-size: 20px; }
  .nav-brand .brand-sub { font-size: 12px; letter-spacing: 0.28em; }
}

/* Full inline nav links — hidden by default, shown at desktop widths */
.nav-links {
  display: none;
  list-style: none;
}
.nav-links a {
  position: relative;
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-on-dark);
  padding: 10px 2px;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 4px;
  height: 1px; width: 0;
  background: var(--gold);
  transition: width 0.3s var(--ease-out);
}
.nav-links a:hover::after,
.nav-links a:focus-visible::after,
.nav-links a.is-active::after { width: 100%; }
.nav-links a.is-active { color: var(--gold); }

.nav-cta {
  display: none;
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink);
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212, 175, 55, 0.35); }

/* Bars stay absolutely centered so open/close only interpolate matching
   transform lists (translate + translateY + rotate / scaleX). Going from
   transform:none → translateY()+rotate() forces matrix interpolation and
   the X morph looks warped when the balloon menu opens. */
.nav-toggle {
  display: block;
  position: relative;
  background: none;
  border: 0;
  cursor: pointer;
  width: 48px;
  height: 48px;
  padding: 0;
  z-index: 110;
}
.nav-toggle span {
  display: block;
  position: absolute;
  left: 50%;
  top: 50%;
  width: 24px;
  height: 2px;
  margin: 0;
  background: var(--gold);
  border-radius: 1px;
  transform-origin: center;
  transition:
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.25s ease;
}
.nav-toggle span:nth-child(1) {
  transform: translate(-50%, -50%) translateY(-7px) rotate(0deg);
}
.nav-toggle span:nth-child(2) {
  transform: translate(-50%, -50%) scaleX(1);
  opacity: 1;
}
.nav-toggle span:nth-child(3) {
  transform: translate(-50%, -50%) translateY(7px) rotate(0deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translate(-50%, -50%) translateY(0) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  transform: translate(-50%, -50%) scaleX(0);
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translate(-50%, -50%) translateY(0) rotate(-45deg);
}

@media (min-width: 901px) {
  .nav-links {
    display: flex;
    gap: clamp(18px, 2.5vw, 36px);
  }
  .nav-cta { display: inline-block; }
  .nav-toggle { display: none; }
}

/* ------- Balloon dropdown: mobile nav items ease in as a staged bouquet ---
   These are the default (mobile) open-menu styles. They only ever trigger
   below 901px because .nav-toggle is not reachable at wider viewports. */
@keyframes balloonPanelIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes balloonPopIn {
  0%   { opacity: 0; transform: translateY(18px) scale(0.94) rotate(var(--tilt, 0deg)); }
  100% { opacity: 1; transform: translateY(0) scale(1) rotate(var(--tilt, 0deg)); }
}
@keyframes balloonFloat {
  0%, 100% { transform: translateY(0) rotate(var(--tilt, 0deg)); }
  50%      { transform: translateY(-10px) rotate(calc(var(--tilt, 0deg) * -1)); }
}

/* No backdrop-filter here — filter/backdrop-filter on an ancestor creates
   a new CSS containing block for fixed-position descendants, which would
   trap the full-screen balloon panel inside this bar. This must also
   explicitly cancel .nav.scrolled's backdrop-filter (added once the page
   is scrolled past the hero), since both classes can be active at once
   and CSS cascades per-property, not per-rule. */
.nav.menu-open {
  background: rgba(15, 10, 24, 0.72) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.nav-links.open {
  --balloon-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --balloon-in: 0.6s;
  --balloon-stagger: 0.06s;
  display: flex;
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  background: rgba(15, 10, 24, 0.8);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  flex-flow: row wrap;
  align-content: center;
  align-items: flex-start;
  justify-content: center;
  gap: 46px 14px;
  padding: 40px 18px 56px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  animation: balloonPanelIn 0.35s var(--balloon-ease) both;
}
.nav-links.open li {
  position: relative;
  list-style: none;
  --tilt: 0deg;
}
/* Stagger + tilt follow position so the reveal stays evenly paced no matter
   which pages are active. */
.nav-links.open li:nth-child(1) { --d: 0; --tilt: -6deg; }
.nav-links.open li:nth-child(2) { --d: 1; --tilt: 4deg;  }
.nav-links.open li:nth-child(3) { --d: 2; --tilt: -4deg; }
.nav-links.open li:nth-child(4) { --d: 3; --tilt: 6deg;  }
.nav-links.open li:nth-child(5) { --d: 4; --tilt: -5deg; }
.nav-links.open li:nth-child(6) { --d: 5; --tilt: 5deg;  }
.nav-links.open li:nth-child(7) { --d: 6; --tilt: -3deg; }
/* One hue per balloon, matching the floating balloon canvas palette.
   Keyed to the page (not position) so each page keeps its hue even when a
   page is deactivated in partials/nav.inc. */
.nav-links.open li:has(a[data-page="showcase"])     { --b1: #f6e3a1; --b2: #d4af37; }
.nav-links.open li:has(a[data-page="services"])     { --b1: #f7c4d8; --b2: #e46aa8; }
.nav-links.open li:has(a[data-page="dance-studio"]) { --b1: #ddccf5; --b2: #a481dd; }
.nav-links.open li:has(a[data-page="pricing"])      { --b1: #c4f0dc; --b2: #4fb98a; }
.nav-links.open li:has(a[data-page="our-story"])    { --b1: #bfe6f7; --b2: #569edc; }

.nav-links.open li::before,
.nav-links.open li::after { pointer-events: none; }
.nav-links.open li::before {
  /* knot */
  content: "";
  position: absolute;
  left: 50%; bottom: -6px;
  transform: translateX(-50%) rotate(var(--tilt));
  width: 0; height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 9px solid var(--b2, var(--gold));
  opacity: 0;
  animation: balloonPopIn var(--balloon-in) var(--balloon-ease) both;
  animation-delay: calc(var(--d) * var(--balloon-stagger) + 0.1s);
}
.nav-links.open li::after {
  /* string */
  content: "";
  position: absolute;
  left: 50%; bottom: -26px;
  transform: translateX(-50%) rotate(var(--tilt));
  width: 1px; height: 22px;
  background: linear-gradient(rgba(240, 216, 120, 0.55), transparent);
  opacity: 0;
  animation: balloonPopIn var(--balloon-in) var(--balloon-ease) both;
  animation-delay: calc(var(--d) * var(--balloon-stagger) + 0.14s);
}

.nav-links.open a {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 102px;
  min-height: 112px;
  padding: 14px 10px 26px;
  border-radius: 50% 50% 50% 50% / 58% 58% 42% 42%;
  background: radial-gradient(circle at 32% 26%, var(--b1, var(--gold-light)), var(--b2, var(--gold)) 74%);
  color: var(--plum-deep);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1.3;
  box-shadow:
    inset -10px -14px 20px rgba(24, 12, 34, 0.16),
    inset 8px 10px 18px rgba(255, 255, 255, 0.4),
    0 16px 30px rgba(10, 6, 18, 0.4);
  opacity: 0;
  transform: translateY(18px) scale(0.94) rotate(var(--tilt));
  animation:
    balloonPopIn var(--balloon-in) var(--balloon-ease) both,
    balloonFloat 4.6s ease-in-out infinite;
  animation-delay:
    calc(var(--d) * var(--balloon-stagger)),
    calc(var(--d) * var(--balloon-stagger) + var(--balloon-in));
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s;
}
.nav-links.open a::before {
  /* glossy highlight */
  content: "";
  position: absolute;
  top: 16%; left: 22%;
  width: 26%; height: 20%;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 50%;
  filter: blur(1px);
}
.nav-links.open a::after { content: none; } /* no underline in balloon mode */
.nav-links.open a:hover,
.nav-links.open a:focus-visible,
.nav-links.open a.is-active {
  transform: translateY(-10px) scale(1.05) rotate(var(--tilt));
  box-shadow:
    inset -10px -14px 20px rgba(24, 12, 34, 0.16),
    inset 8px 10px 18px rgba(255, 255, 255, 0.45),
    0 22px 40px rgba(10, 6, 18, 0.48);
}

@media (min-width: 561px) {
  .nav-links.open { gap: 58px 20px; padding: 48px 26px 64px; }
  .nav-links.open a { width: 122px; min-height: 132px; font-size: 12.5px; padding: 16px 14px 30px; }
}