/* ===============================
   Header CSS  Final Polished Build
   Order: Vars  Structure  Desktop  Mobile  Animations  A11y
   =============================== */

:root{
  --header-height: 84px;
  --gold: #f5d15a;
  --gold-soft: rgba(245, 209, 90, 0.12);
  --gold-border: rgba(245, 209, 90, 0.30);
  --gold-border-strong: rgba(245, 209, 90, 0.45);
  --ink-900: rgba(6,7,10,0.98);
  --ink-850: rgba(10,11,16,0.96);
  --text-100: rgba(255,255,255,0.92);
  --text-300: rgba(255,255,255,0.75);
  --radius: 14px;
  --shadow: 0 22px 60px rgba(0,0,0,0.45);
  --fast: 160ms;
  --slow: 420ms;
}

/* Keep content below fixed header */
body > main{ padding-top: var(--header-height); }

/* Prevent scroll when mobile menu is open */
html.menu-locked,
body.menu-locked{
  overflow: hidden !important;
  height: 100%;
}

/* ===============================
   Structure
   =============================== */
.site-header{
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-height);
  z-index: 900;
  backdrop-filter: blur(18px);
  background: var(--ink-900);
  border-bottom: 1px solid var(--gold-border);
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  transform: translate3d(0,0,0);
  transition:
    background var(--fast) ease,
    border-color var(--fast) ease;
}
.site-header.is-scrolled{
  background: var(--ink-850);
  border-bottom-color: var(--gold-border-strong);
}

.header-inner{
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* Brand */
.brand-mark{
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-100);
}
.brand-mark img{
  width: 40px; height: 40px; border-radius: 10px;
  border: 1px solid var(--gold-border);
  background: rgba(255,255,255,0.02);
}

/* ===============================
   Desktop Nav
   =============================== */
.nav-desktop{
  display: none;
  align-items: center;
  gap: 1.25rem;
}
.nav-desktop ul{
  list-style: none; margin: 0; padding: 0;
  display: flex; gap: .8rem;
}
.nav-desktop a,
.nav-desktop button{
  background: none; border: 0; cursor: pointer;
  display: inline-flex; align-items: center; gap: .4rem;
  color: var(--text-300);
  font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  padding: .35rem .4rem .45rem;
  position: relative;
  transition: color var(--fast) ease;
}
.nav-desktop a:hover,
.nav-desktop button:hover,
.nav-desktop a.is-active,
.nav-desktop button[aria-expanded="true"]{
  color: var(--gold);
}
.nav-desktop a::after,
.nav-desktop button::after{
  content: "";
  position: absolute; left: 0; right: 0; bottom: -6px;
  height: 2px; border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  transform: scaleX(0); transform-origin: center;
  transition: transform var(--fast) ease;
}
.nav-desktop a:hover::after,
.nav-desktop button:hover::after,
.nav-desktop a.is-active::after,
.nav-desktop button[aria-expanded="true"]::after{
  transform: scaleX(1);
}

/* Dropdown caret for parent item */
.has-sub > .sub-trigger{
  position: relative; padding-right: 1.15rem;
}
.has-sub > .sub-trigger::after{
  content: "";
  position: absolute; top: 50%; right: .2rem;
  width: .5rem; height: .5rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-50%) rotate(45deg);
  transition: transform var(--fast) ease;
  opacity: .9;
}
.has-sub > .sub-trigger[aria-expanded="true"]::after{
  transform: translateY(-50%) rotate(-135deg);
}

/* Dropdown panel */
.sub-panel{
  position: absolute;
  top: calc(100% + .55rem);
  left: 50%;
  transform: translate(-50%, 8px);
  min-width: 230px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06);
  background: rgba(12,12,18,0.98);
  box-shadow: var(--shadow);
  padding: .6rem;
  display: grid; gap: .35rem;
  opacity: 0; pointer-events: none;
  transition: opacity var(--fast) ease, transform var(--fast) ease;
  z-index: 920;
}
.sub-panel a{
  color: var(--text-100);
  text-transform: uppercase; font-size: .82rem; letter-spacing: .05em;
  border-radius: 12px; padding: .6rem .7rem;
  transition: background var(--fast) ease, color var(--fast) ease;
}
.sub-panel a:hover{ background: var(--gold-soft); color: var(--gold); }
.sub-trigger[aria-expanded="true"] + .sub-panel{
  opacity: 1; pointer-events: auto; transform: translate(-50%, 0);
}

/* CTA */
.nav-cta{ display: none; align-items: center; gap: .6rem; }
.nav-cta .cta-link{
  border-radius: 999px;
  padding: .5rem 1rem;
  border: 1px solid var(--gold-border);
  color: var(--gold);
  text-transform: uppercase; letter-spacing: .15em; font-size: .8rem; font-weight: 800;
  transition: border-color var(--fast) ease, background var(--fast) ease, color var(--fast) ease;
}
.nav-cta .cta-link:hover{ border-color: var(--gold); background: var(--gold-soft); }

/* ===============================
   Mobile Toggle
   =============================== */
.nav-toggle{
  position: relative;
  width: 46px; height: 46px;
  border-radius: 12px;
  border: 1px solid var(--gold-border);
  background: rgba(255,255,255,0.02);
  color: var(--gold);
  display: inline-flex; align-items: center; justify-content: center;
  transition: border-color var(--fast) ease, background var(--fast) ease;
  z-index: 930;
  line-height: 0;
}
.nav-toggle:hover,
.nav-toggle[aria-expanded="true"]{
  border-color: var(--gold);
  background: var(--gold-soft);
}

.nav-toggle.has-morph-burger svg {
  display: none !important;
}

/* Show only our morphing burger */
.nav-toggle.has-morph-burger svg,
.nav-toggle.has-morph-burger i,
.nav-toggle.has-morph-burger img,
.nav-toggle.has-morph-burger .icon{ display: none !important; }
.nav-toggle .visually-hidden,
.nav-toggle .sr-only{
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); border: 0;
}
.nav-toggle.has-morph-burger .burger{
  width: 22px; height: 16px; position: relative; display: inline-block;
}
.nav-toggle.has-morph-burger .bar{
  position: absolute; left: 0; right: 0; height: 2px; border-radius: 2px;
  background: currentColor; transform-origin: 50% 50%;
  transition: transform var(--fast) ease, opacity var(--fast) ease;
}
.nav-toggle.has-morph-burger .bar-1{ top: 0; }
.nav-toggle.has-morph-burger .bar-2{ top: 7px; }
.nav-toggle.has-morph-burger .bar-3{ top: 14px; }
.nav-toggle[aria-expanded="true"] .bar-1{ transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bar-2{ opacity: 0; }
.nav-toggle[aria-expanded="true"] .bar-3{ transform: translateY(-7px) rotate(-45deg); }

/* ===============================
   Mobile Nav Panel
   =============================== */
.nav-mobile{
  position: fixed;
  top: var(--header-height); left: 0; right: 0;
  background: rgba(8,8,12,0.98);
  border-top: 1px solid var(--gold-border);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  box-shadow: var(--shadow);
  max-height: 0; overflow: hidden;
  opacity: 0; visibility: hidden;
  transform: translateY(-12px);
  transition:
    max-height var(--slow) ease,
    opacity var(--fast) ease,
    transform var(--fast) ease,
    visibility 0s linear var(--fast);
  z-index: 920;
  pointer-events: none;
}
.nav-mobile[data-menu-state="open"]{
  max-height: calc(100vh - var(--header-height));
  opacity: 1; visibility: visible; transform: translateY(0);
  pointer-events: auto;
}
.nav-mobile ul{
  list-style: none; margin: 0; padding: 1rem;
  display: flex; flex-direction: column; gap: .6rem;
  max-height: calc(100vh - var(--header-height) - 2rem);
  overflow-y: auto;
}
.nav-mobile a,
.nav-mobile button{
  width: 100%; text-align: left;
  padding: .9rem 1rem;
  border-radius: 12px;
  background: rgba(255,255,255,0.02);
  color: var(--text-100);
  border: 1px solid transparent;
  font-weight: 800; letter-spacing: .05em; text-transform: uppercase;
  transition: background var(--fast) ease, border-color var(--fast) ease, color var(--fast) ease;
}
.nav-mobile a:hover,
.nav-mobile button:hover{
  background: var(--gold-soft);
  border-color: var(--gold-border-strong);
  color: var(--gold);
}

/* Submenu trigger caret */
.mobile-sub-trigger{
  display: flex; align-items: center; justify-content: space-between; gap: .75rem;
}
.mobile-sub-trigger::after{
  content: ""; width: .55rem; height: .55rem;
  border-right: 2px solid currentColor; border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--fast) ease;
}
.mobile-sub-trigger[aria-expanded="true"]::after{ transform: rotate(-135deg); }

/* Collapsible submenu */
.mobile-sub{
  display: grid; gap: .35rem;
  padding-left: .5rem; margin-top: .35rem;
  transition: height var(--slow) ease, opacity var(--fast) ease;
  opacity: 1;
}
.mobile-sub[hidden]{ display: block; height: 0; overflow: hidden; opacity: 0; }

/* ===============================
   Backdrop Scrim  improves focus
   =============================== */
.nav-scrim{
  position: fixed; inset: var(--header-height) 0 0 0;
  background: rgba(0,0,0,0.45);
  opacity: 0; visibility: hidden;
  transition: opacity var(--fast) ease, visibility 0s linear var(--fast);
  z-index: 910;
}
.nav-scrim.active{ opacity: 1; visibility: visible; }

/* ===============================
   Responsive
   =============================== */
@media (min-width: 992px){
  .nav-desktop{ display: flex; }
  .nav-cta{ display: inline-flex; }
  .nav-toggle, .nav-mobile, .nav-scrim{ display: none !important; }
}
@media (max-width: 991px){
  :root{ --header-height: 72px; }
  .brand-mark img{ width: 36px; height: 36px; }
}

/* ===============================
   A11y helpers
   =============================== */
.visually-hidden{
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}