/* ========================================
   DHDS V2 — Navigation
   ======================================== */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 11, 12, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

/* V2 Enhancement — Scroll progress */
.scroll-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--gold), var(--gold-bright));
  transition: width 0.1s linear;
  z-index: 101;
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  transition: transform var(--transition-base), filter var(--transition-base);
}
.brand:hover {
  transform: scale(1.02);
  filter: brightness(1.08);
}

.brand .mark {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1.5px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 13px;
  color: var(--gold);
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand-top {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 17px;
  color: var(--paper);
  letter-spacing: 0.01em;
}

.brand-bottom {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.16em;
  margin-top: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-bright));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navlinks {
  display: flex;
  gap: 32px;
  font-size: 14px;
  color: var(--muted);
}
.navlinks a {
  transition: color var(--transition-fast);
  position: relative;
}
.navlinks a:hover { color: var(--gold); }

.navlinks a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gold);
  border-radius: var(--radius-full);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}
.navlinks a:hover::after, .navlinks a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}
.navlinks a.active {
  color: var(--gold);
}

@media (max-width: 960px) {
  .navlinks { display: none; }
}

.nav-cta {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: var(--gold);
  color: var(--obsidian);
  padding: 10px 18px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: transform var(--transition-fast), background var(--transition-fast);
}
.nav-cta:hover {
  background: var(--gold-bright);
  transform: translateY(-1px);
}

/* V2 Enhancement — Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
}
.mobile-menu-link {
  font-family: var(--serif);
  font-size: 24px;
  color: var(--paper);
  padding: 10px 0;
  display: block;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.mobile-menu-panel.active .mobile-menu-link {
  opacity: 1;
  transform: translateY(0);
}
.mobile-menu-panel.active .mobile-menu-link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu-panel.active .mobile-menu-link:nth-child(2) { transition-delay: 0.2s; }
.mobile-menu-panel.active .mobile-menu-link:nth-child(3) { transition-delay: 0.3s; }
.mobile-menu-panel.active .mobile-menu-link:nth-child(4) { transition-delay: 0.4s; }

/* Language Switcher */
.lang-dropdown {
  position: relative;
  font-family: var(--mono);
  font-size: 11.5px;
}
.lang-btn-current {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--paper);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-fast);
}
.lang-btn-current:hover, .lang-dropdown:hover .lang-btn-current {
  border-color: var(--gold);
  color: var(--gold);
}
.lang-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: var(--obsidian);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 120px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition-fast);
}
.lang-dropdown:hover .lang-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.lang-menu a {
  padding: 8px 12px;
  color: var(--muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 8px;
}
.lang-menu a:hover, .lang-menu a.active {
  background: var(--charcoal);
  color: var(--paper);
}
.lang-menu a.active {
  color: var(--gold);
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--paper);
  transition: var(--transition-base);
  border-radius: 2px;
}
.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 960px) {
  .mobile-menu-btn { display: flex; }
  .nav-cta { display: none; }
}

/* V2 Enhancement — Mobile Slide-in Menu */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 98;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
}
.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 300px;
  max-width: 80vw;
  height: 100vh;
  background: var(--charcoal);
  z-index: 99;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 100px 32px 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  border-left: 1px solid var(--line);
}
.mobile-menu.active {
  transform: translateX(0);
}
.mobile-menu a {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--muted);
  transition: color var(--transition-fast);
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--gold);
}
.mobile-menu .mobile-cta {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  background: var(--gold);
  color: var(--obsidian);
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  text-align: center;
  margin-top: auto;
}