/* Header & Navigation Bar Styling */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: all var(--transition-normal);
  background: transparent;
}

.header.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: var(--shadow-md);
  height: 75px;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.brand-logo img {
  height: 48px;
  width: auto;
  border-radius: 50%;
  border: 1px solid var(--color-gold);
  box-shadow: 0 0 12px var(--color-gold-glow);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.brand-logo:hover img {
  transform: scale(1.05) rotate(3deg);
}

.brand-info {
  display: flex;
  flex-direction: column;
  white-space: nowrap;
}

.brand-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
  white-space: nowrap;
}

.brand-tagline {
  font-size: 0.72rem;
  color: var(--color-gold);
  font-weight: 600;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-main);
  position: relative;
  padding: 0.5rem 0;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-cyan));
  transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
  left: 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-gold);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.header-actions .btn {
  white-space: nowrap;
  flex-shrink: 0;
}

.header-icon-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition-fast);
}

.header-icon-btn:hover {
  background: var(--color-gold);
  color: #000;
  transform: rotate(15deg);
}

.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 32px;
  height: 24px;
  cursor: pointer;
  z-index: 1001;
}

.hamburger-btn span {
  width: 100%;
  height: 3px;
  background: var(--text-main);
  border-radius: 4px;
  transition: all var(--transition-normal);
}

.hamburger-btn.active span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}

.hamburger-btn.active span:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
  transform: translateY(-11px) rotate(-45deg);
}

/* Mobile Nav Drawer */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 340px;
  height: 100vh;
  background: var(--bg-secondary);
  box-shadow: var(--shadow-lg);
  padding: 6rem 2rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  z-index: 999;
  transition: right var(--transition-normal);
  overflow-y: auto;
}

.mobile-nav.open {
  right: 0;
}

.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-nav-overlay.open {
  opacity: 1;
  visibility: visible;
}