/* ─── GLOBAL NAV ─── */
nav {
  position: sticky;
  top: 16px;
  z-index: 200;
  padding: 0 clamp(12px, 4vw, 80px);
  margin-top: 16px;
  /* iOS Safari: sticky requires the element itself to handle overflow,
     not a parent. Using translate3d forces GPU compositing layer. */
  transform: translate3d(0, 0, 0);
  -webkit-transform: translate3d(0, 0, 0);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: rgba(13,13,31,0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}
.nav-logo {
  display: flex;
  align-items: center;
  z-index: 2;
}
.nav-logo img {
  height: 28px;
  width: auto;
  display: block;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--white); }
.nav-links a.active { color: var(--white); }
.nav-cta {
  background: var(--purple);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 10px;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: opacity 0.2s;
  z-index: 2;
}
.nav-cta:hover { opacity: 0.9; }

/* Hamburger button */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 2;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease, width 0.3s ease;
  transform-origin: center;
}
/* Hamburger → X animation */
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile dropdown menu */
.nav-mobile-menu {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  left: 0; right: 0;
  background: rgba(10,10,24,0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 20px 24px;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.28s ease, transform 0.28s ease;
  pointer-events: none;
  z-index: 300;
}
.nav-mobile-menu.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}
.nav-mobile-menu ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav-mobile-menu ul li a {
  display: block;
  padding: 12px 8px;
  font-size: 16px;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: color 0.2s;
}
.nav-mobile-menu ul li:last-child a { border-bottom: none; }
.nav-mobile-menu ul li a:hover { color: var(--white); }

/* Floating CTA — mobile only */
.nav-float-cta {
  display: none;
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  background: var(--purple);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  padding: 14px 36px;
  border-radius: 100px;
  text-decoration: none;
  letter-spacing: 0.01em;
  box-shadow: 0 8px 32px rgba(124,111,255,0.45);
  white-space: nowrap;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.nav-float-cta:hover {
  transform: translateX(-50%) translateY(-2px);
  box-shadow: 0 12px 40px rgba(124,111,255,0.55);
}

/* ── Responsive breakpoints ── */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav-cta   { display: none; }
  .nav-hamburger { display: flex; }
  .nav-mobile-menu { display: block; }
}
@media (max-width: 600px) {
  nav {
    top: 8px;
    margin-top: 8px;
  }
  .nav-float-cta { display: flex; align-items: center; justify-content: center; }
}