/* ==========================================================================
   HEADER & ULTRA-MODERN NAVIGATION
   ========================================================================== */

.site-header {
  background: rgba(6, 9, 19, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

[data-theme="light"] .site-header {
  background: rgba(255, 255, 255, 0.95);
  border-bottom-color: #e2e8f0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.site-header .container {
  max-width: 1540px;
  width: 100%;
  padding: 0 1.5rem;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 0.35rem 0;
  gap: 1.5rem;
}

.logo-wrap {
  flex-shrink: 0;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: #fff;
}

[data-theme="light"] .brand-link {
  color: #0f172a;
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--accent-gradient);
  border-radius: 10px;
  color: #fff;
  box-shadow: 0 0 20px var(--accent-glow);
  flex-shrink: 0;
}

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

.brand-text .logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 40%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

[data-theme="light"] .brand-text .logo {
  background: linear-gradient(135deg, #0f172a 30%, #4f46e5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text .logo-tagline {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Nav Links & Main Navigation */
.main-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1;
  gap: 0.75rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-item-link,
.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.72rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-soft);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}

.nav-item-link:hover,
.nav-dropdown-trigger:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="light"] .nav-item-link,
[data-theme="light"] .nav-dropdown-trigger {
  color: #334155;
}

[data-theme="light"] .nav-item-link:hover,
[data-theme="light"] .nav-dropdown-trigger:hover {
  color: #4f46e5;
  background: #f1f5f9;
}

.nav-item-link.active,
.nav-dropdown-trigger.active {
  color: #fff !important;
  background: rgba(99, 102, 241, 0.16) !important;
  border-color: rgba(99, 102, 241, 0.35) !important;
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.18);
}

[data-theme="light"] .nav-item-link.active,
[data-theme="light"] .nav-dropdown-trigger.active {
  color: #4f46e5 !important;
  background: #eef2ff !important;
  border-color: #c7d2fe !important;
}

.nav-btn-highlight {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 1rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: #fff !important;
  text-decoration: none;
  border-radius: var(--radius-sm);
  background: var(--accent-gradient);
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-btn-highlight:hover {
  filter: brightness(1.15);
  transform: translateY(-1px);
}

/* Nav Dropdown Menu */
.nav-dropdown-item {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 260px;
  background: rgba(15, 23, 42, 0.98);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  z-index: 1050;
}

[data-theme="light"] .nav-dropdown-menu {
  background: #ffffff;
  border-color: #e2e8f0;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.nav-dropdown-item.active .nav-dropdown-menu,
.nav-dropdown-item:hover .nav-dropdown-menu {
  display: flex;
}

.dropdown-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  color: var(--text-soft);
  text-decoration: none;
  transition: all 0.18s ease;
}

.dropdown-link:hover {
  background: rgba(99, 102, 241, 0.1);
  color: #fff;
}

[data-theme="light"] .dropdown-link {
  color: #334155;
}

[data-theme="light"] .dropdown-link:hover {
  background: #f1f5f9;
  color: #4f46e5;
}

.dropdown-link strong {
  display: block;
  font-size: 0.88rem;
  color: #fff;
}

[data-theme="light"] .dropdown-link strong {
  color: #0f172a;
}

.dropdown-link small {
  display: block;
  font-size: 0.74rem;
  color: var(--text-soft);
}

/* User Controls Toolbar Strip (Right side) */
.nav-toolbar-strip {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: #fbbf24;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
  padding: 0;
}

.theme-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: scale(1.05);
}

[data-theme="light"] .theme-toggle-btn {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #4f46e5;
}

/* Streamlined Balance Pill */
.nav-balance-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.38rem 0.75rem 0.38rem 0.65rem;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  border-radius: var(--radius-full);
  color: #34d399;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-balance-pill:hover {
  background: rgba(16, 185, 129, 0.22);
  border-color: #34d399;
  transform: translateY(-1px);
}

.balance-add-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #10b981;
  color: #0f172a;
  font-weight: 900;
  font-size: 0.85rem;
  line-height: 1;
  margin-left: 0.2rem;
}

[data-theme="light"] .nav-balance-pill {
  background: #ecfdf5;
  border-color: #a7f3d0;
  color: #059669;
}

/* Unified User Account Dropdown */
.nav-user-dropdown {
  position: relative;
}

.nav-user-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.6rem 0.3rem 0.35rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 30px;
  color: #fff;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  transition: all 0.2s ease;
}

.nav-user-trigger:hover,
.nav-user-dropdown.active .nav-user-trigger {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(99, 102, 241, 0.4);
}

[data-theme="light"] .nav-user-trigger {
  background: #f8fafc;
  border-color: #e2e8f0;
  color: #0f172a;
}

.nav-avatar-circle {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
}

.nav-user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  left: auto;
  min-width: 270px;
  background: rgba(15, 23, 42, 0.98);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 20px rgba(99, 102, 241, 0.15);
  padding: 0.6rem;
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  z-index: 1100;
}

[data-theme="light"] .nav-user-menu {
  background: #ffffff;
  border-color: #e2e8f0;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.nav-user-dropdown.active .nav-user-menu,
.nav-user-dropdown:hover .nav-user-menu {
  display: flex;
}

.nav-user-header {
  padding: 0.6rem 0.75rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.35rem;
}

.nav-user-name {
  font-weight: 800;
  font-size: 0.92rem;
  color: #fff;
  display: block;
}

[data-theme="light"] .nav-user-name {
  color: #0f172a;
}

.nav-user-email {
  font-size: 0.76rem;
  color: var(--text-soft);
  display: block;
  word-break: break-all;
}

.nav-user-pref-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.75rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  margin: 0.35rem 0;
  border-top: 1px dashed var(--border);
  border-bottom: 1px dashed var(--border);
}

.currency-nav-select-compact {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-main);
  padding: 0.25rem 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

/* Mobile Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: #fff;
  border-radius: 2px;
  transition: all 0.25s ease;
}

[data-theme="light"] .nav-toggle span {
  background: #0f172a;
}

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

  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    width: 100%;
    height: calc(100vh - 68px);
    background: rgba(6, 9, 19, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 1.5rem;
    overflow-y: auto;
    display: none;
  }

  [data-theme="light"] .main-nav {
    background: rgba(255, 255, 255, 0.98);
  }

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

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
  }

  .nav-toolbar-strip {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    justify-content: space-between;
  }
}