.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(180deg, var(--color-bg-primary) 0%, rgba(10,15,23,0.98) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

@media (min-width: 1024px) {
  .header {
    top: 8px;
    border-radius: 0 0 14px 14px;
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255,255,255,0.03);
  }
}

.header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0.5;
}

.header > .container {
  display: flex;
  align-items: center;
  height: 100%;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--spacing-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.logo-img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  border-radius: 8px;
  transition: transform 200ms ease-out, filter 200ms ease-out;
  filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.2));
}

.logo:hover .logo-img {
  transform: scale(1.05);
  filter: drop-shadow(0 0 16px rgba(0, 212, 255, 0.35));
}

.logo-icon {
  width: 32px;
  height: 32px;
  color: var(--color-accent);
  filter: drop-shadow(0 0 12px var(--color-accent-glow)) drop-shadow(0 0 24px var(--color-accent-glow));
  animation: electric-glow 4s ease-in-out infinite;
}

.logo span {
  color: var(--color-accent);
  text-shadow: 0 0 10px var(--color-accent-glow);
}

.nav {
  display: none;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: var(--spacing-1);
}

@media (min-width: 1024px) {
  .nav {
    display: flex;
  }
}

.nav-link {
  position: relative;
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  border-left: 2px solid transparent;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent-glow);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: rgba(0, 212, 255, 0.05);
}

.nav-link:hover::after {
  width: 80%;
}

.nav-link.active {
  color: var(--color-accent);
  background: rgba(0, 212, 255, 0.1);
  border-left-color: var(--color-accent);
}

.nav-link.active::after {
  width: 80%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.header-watchlist-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.header-watchlist-btn:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border-color: var(--color-border-light);
}

.header-watchlist-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  background: var(--color-accent);
  color: var(--color-bg-primary);
  font-size: 10px;
  font-weight: var(--font-weight-bold);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-search-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-3);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.header-search-btn:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border-color: var(--color-border-light);
}

.header-search-text {
  display: none;
}

@media (min-width: 1024px) {
  .header-search-text {
    display: inline;
  }
}

.header-search-kbd {
  display: none;
  align-items: center;
  gap: 2px;
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

@media (min-width: 1024px) {
  .header-search-kbd {
    display: inline-flex;
  }
}

.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
  position: relative;
}

.mobile-menu-btn:hover {
  background: var(--color-bg-secondary);
}

.hamburger-line {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1),
              opacity 200ms ease,
              width 200ms ease;
  transform-origin: center;
}

/* Hamburger to X morph */
.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
  width: 0;
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 98;
  opacity: 0;
  visibility: hidden;
  transition: opacity 300ms ease, visibility 300ms ease;
}

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

.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  background: var(--color-bg-primary);
  z-index: 99;
  display: none;
  flex-direction: column;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--color-text-primary);
  background: rgba(0, 212, 255, 0.06);
}

.mobile-nav-link.active {
  box-shadow: inset 3px 0 0 var(--color-primary);
}

.mobile-nav-link.sub-link {
  font-size: var(--font-size-sm);
  padding-left: var(--spacing-6);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-normal);
  border-bottom: none;
}

.mobile-nav-link.sub-link::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-text-muted);
  opacity: 0.5;
}

.mobile-nav-link.sub-link:hover {
  color: var(--color-text-secondary);
  background: rgba(255, 255, 255, 0.02);
}

.mobile-nav .container {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: var(--spacing-2);
  padding-bottom: var(--spacing-8);
}

.mobile-nav__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4) var(--spacing-4) var(--spacing-2);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-2);
}

.mobile-nav__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.mobile-nav__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-nav__close:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.mobile-search {
  padding: var(--spacing-4);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-2);
}

@media (min-width: 1024px) {
  .mobile-nav,
  .mobile-search {
    display: none;
  }
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

.dropdown-arrow {
  transition: transform var(--transition-fast);
}

.nav-dropdown:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px;
  padding: var(--spacing-2);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 100;
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(4px);
}

.nav-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-3);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-dropdown-item:hover {
  color: var(--color-text-primary);
  background: rgba(0, 212, 255, 0.1);
}

.nav-dropdown-item svg {
  color: var(--color-accent);
}

/* ── SCROLLED STATE ─────────────────────────── */
.header--scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5), 0 0 20px var(--glow-primary-sm);
  border-bottom-color: rgba(0, 212, 255, 0.25);
}

.header--scrolled::after {
  opacity: 1;
}

/* ── LOGIN BUTTON ───────────────────────────── */
.header-login-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.header-login-btn:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-border-light);
  color: var(--color-text-primary);
}

/* ── USER MENU ──────────────────────────────── */
.header-user {
  position: relative;
}

.header-user__toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: 4px 4px 4px 4px;
  padding-right: var(--spacing-2);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.header-user__toggle:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-border-light);
  color: var(--color-text-primary);
}

.header-user__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}

.header-user__name {
  display: none;
}

@media (min-width: 1024px) {
  .header-user__name {
    display: inline;
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

.header-user__arrow {
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.header-user__toggle[aria-expanded="true"] .header-user__arrow {
  transform: rotate(180deg);
}

.header-user__menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 220px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  padding: var(--spacing-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  z-index: 101;
}

.header-user__menu.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header-user__info {
  padding: var(--spacing-3);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.header-user__display {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.header-user__email {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.header-user__divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--spacing-1) 0;
}

.header-user__item {
  display: block;
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.header-user__item:hover {
  background: rgba(0, 212, 255, 0.08);
  color: var(--color-text-primary);
}

.header-user__item--danger {
  color: var(--color-error);
}

.header-user__item--danger:hover {
  background: rgba(255, 77, 77, 0.08);
  color: var(--color-error);
}

/* ── LOGIN DROPDOWN ─────────────────────────── */
.header-login {
  position: relative;
}

.header-login__arrow {
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.header-login-btn[aria-expanded="true"] .header-login__arrow {
  transform: rotate(180deg);
}

.header-login__menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 240px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  padding: var(--spacing-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  z-index: 101;
}

.header-login__menu.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header-login__option {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.header-login__option:hover {
  background: var(--color-bg-tertiary);
}