/* ═══ NAVIGATION — twee states (light op pink, dark op navy)
   JS schakelt nav-class op basis van scroll-progress. */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: transparent; transition: background .35s; }
.nav-inner { max-width: var(--container); margin: 0 auto; padding: 0 var(--pad); height: 72px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: inline-block; line-height: 0; color: #fff; transition: color .35s; }
.nav--light .nav-logo { color: var(--navy); }
.nav--dark  .nav-logo { color: #fff; }
.nav-logo-mask {
  display: block;
  width: 117px;
  height: 39px;
  background-color: currentColor;
  -webkit-mask: url(/assets/logo-whayle.svg) no-repeat center / contain;
  mask: url(/assets/logo-whayle.svg) no-repeat center / contain;
}
.nav-links { display: flex; align-items: center; gap: 40px; list-style: none; }
.nav-links a { font-family: var(--font); font-size: 14px; font-weight: 400; text-decoration: none; transition: opacity .25s, color .35s; }

.nav--light .nav-links a { color: var(--navy); opacity: .55; }
.nav--light .nav-links a:hover { opacity: 1; }
.nav--dark .nav-links a { color: rgba(255,255,255,.5); }
.nav--dark .nav-links a:hover { color: #fff; }

.btn-nav { font-family: var(--font); font-size: 13px; font-weight: 500; letter-spacing: 0.02em; padding: 9px 22px; border-radius: 6px; text-decoration: none; transition: background .25s, border-color .25s, color .35s; }
.nav--light .btn-nav {
  color: var(--navy) !important;
  opacity: 1 !important;
  background: transparent;
  border: 1px solid rgba(28,30,77,.25);
}
.nav--light .btn-nav:hover {
  background: rgba(28,30,77,.04);
  border-color: rgba(28,30,77,.45);
}
.nav--dark .btn-nav {
  color: rgba(255,255,255,.85) !important;
  opacity: 1 !important;
  background: transparent;
  border: 1px solid rgba(255,255,255,.25);
}
.nav--dark .btn-nav:hover {
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.45);
  color: #fff !important;
}

/* ═══ HAMBURGER MENU ═══ */
.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  padding: 8px;
  cursor: pointer;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}
.nav-toggle-line {
  display: block;
  width: 22px;
  height: 1.5px;
  position: relative;
  transition: background .35s, transform .3s ease;
}
.nav-toggle-line::before,
.nav-toggle-line::after {
  content: '';
  position: absolute;
  left: 0;
  width: 22px;
  height: 1.5px;
  transition: transform .3s ease, top .3s ease, background .35s;
}
.nav-toggle-line::before { top: -7px; }
.nav-toggle-line::after  { top:  7px; }

.nav--light .nav-toggle-line,
.nav--light .nav-toggle-line::before,
.nav--light .nav-toggle-line::after { background: var(--navy); }
.nav--dark .nav-toggle-line,
.nav--dark .nav-toggle-line::before,
.nav--dark .nav-toggle-line::after { background: #fff; }

.nav-toggle[aria-expanded="true"] .nav-toggle-line { background: transparent !important; }
.nav-toggle[aria-expanded="true"] .nav-toggle-line::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-line::after  { top: 0; transform: rotate(-45deg); }

/* Glass background when on canvas (light state after scroll) */
.nav--light.has-scrolled {
  background: rgba(247,247,244,.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--bdr);
}

/* Active nav link */
.nav--light .nav-links a[aria-current="page"] { opacity: 1; }
.nav--dark  .nav-links a[aria-current="page"] { color: #fff; }

/* ═══ MOBILE BREAKPOINT < 768px ═══ */
@media (max-width: 767px) {
  .nav-inner { padding: 0 20px; height: 64px; }

  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 80px 20px 32px;
    transform: translateY(-110%);
    transition: transform .35s cubic-bezier(0.4, 0, 0.2, 1), background .35s;
    align-items: stretch;
    max-height: 100vh;
    overflow-y: auto;
  }
  .nav--light .nav-links { background: rgba(246,232,231,.98); border-top: 1px solid var(--bdr); }
  .nav--dark .nav-links { background: rgba(28,30,77,.98); border-top: 1px solid rgba(255,255,255,.08); }

  .nav-links[data-open="true"] { transform: translateY(0); }

  .nav-links li { list-style: none; }

  .nav-links a {
    display: block;
    padding: 16px 8px;
    font-size: 16px;
  }
  .nav--light .nav-links a { border-bottom: 1px solid rgba(28,30,77,.06); }
  .nav--dark .nav-links a { border-bottom: 1px solid rgba(255,255,255,.06); }
  .nav-links a:last-of-type { border-bottom: none; }

  .btn-nav {
    display: block;
    width: 100%;
    text-align: center;
    padding: 14px 20px;
    margin-top: 12px;
    font-size: 15px;
  }
}