/* ===============================================
   HEADER / NAVIGATION
   =============================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9000;
  padding: 0 48px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.5s ease, box-shadow 0.5s ease, height 0.4s ease;
}

.header.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
  height: 72px;
}

.header__logo {
  display: flex;
  align-items: center;
}

.header__logo img {
  height: 54px;
  width: auto;
  transition: height 0.4s ease, filter 0.4s ease;
}

.header.scrolled .header__logo img {
  height: 42px;
}

/* Homepage: white logo on transparent header */
.header:not(.scrolled):not(.header--inner) .header__logo img {
  filter: brightness(10);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.header__nav a {
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.8);
  transition: color 0.3s ease;
  position: relative;
  padding: 4px 0;
}

.header.scrolled .header__nav a {
  color: var(--text);
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.4s var(--ease-out-expo);
}

.header__nav a:hover::after,
.header__nav a.active::after {
  width: 100%;
}

.header__nav a:hover,
.header__nav a.active {
  color: var(--gold);
}

.header__cta {
  font-family: var(--sans);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 10px 24px;
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  transition: all 0.4s ease;
}

.header.scrolled .header__cta {
  border-color: var(--gold);
  color: var(--gold);
}

.header__cta:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: #fff;
}

/* Mobile menu toggle */
.header__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.header__burger span {
  width: 24px;
  height: 1.5px;
  background: #fff;
  transition: all 0.3s ease;
  display: block;
}

.header.scrolled .header__burger span {
  background: var(--charcoal);
}

.header__burger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.header__burger.open span:nth-child(2) {
  opacity: 0;
}

.header__burger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ===============================================
   INNER PAGE HEADER
   =============================================== */
.header--inner {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}

.header--inner .header__logo img {
  height: 48px;
}

.header--inner.scrolled .header__logo img {
  height: 40px;
}

.header--inner .header__nav a {
  color: var(--text);
}

.header--inner .header__cta {
  border-color: var(--gold);
  color: var(--gold);
}

.header--inner .header__burger span {
  background: var(--charcoal);
}

/* ===============================================
   MOBILE MENU
   =============================================== */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 8999;
  background: rgba(15,21,32,0.97);
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.mobile-menu__nav a {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 300;
  color: rgba(255,255,255,0.7);
  transition: color 0.3s;
}

.mobile-menu__nav a:hover {
  color: var(--gold);
}

.mobile-menu__cta {
  margin-top: 16px;
  font-family: var(--sans) !important;
  font-size: 13px !important;
  letter-spacing: 0.16em !important;
  text-transform: uppercase;
  padding: 14px 36px;
  border: 1px solid var(--gold);
  color: var(--gold) !important;
}

/* ===============================================
   RESPONSIVE
   =============================================== */
@media (max-width: 1024px) {
  .header { padding: 0 28px; }
}

@media (max-width: 768px) {
  .header__nav { display: none; }
  .header__cta { display: none; }
  .header__burger { display: flex; }
}