/* ===================================
   HEADER COMPONENT
   =================================== */

.header {
    position: sticky;
    top: 0;
    height: 72px;
    min-height: 72px;
    max-height: 72px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    z-index: 950;
    padding: 0 var(--spacing-xl);
    transition: all 0.3s ease;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--spacing-lg);
}

/* Left Section */
.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

/* Sidebar Toggle Button (Desktop) */
.sidebar-toggle-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.sidebar-toggle-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.sidebar-toggle-btn .iconify {
    font-size: 20px;
    transition: transform 0.3s ease;
}

body.sidebar-collapsed .sidebar-toggle-btn .iconify {
    transform: rotate(180deg);
}

/* Mobile Menu Button */
.header-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.header-menu-btn .iconify {
    font-size: 20px;
}

.header-search {
    position: relative;
    display: flex;
    align-items: center;
    max-width: 500px;
    width: 100%;
}

.header-search-icon {
    position: absolute;
    left: var(--spacing-md);
    font-size: 18px;
    color: var(--text-muted);
    pointer-events: none;
}

.header-search-input {
    width: 100%;
    height: 40px;
    padding: 0 60px 0 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.2s ease;
}

.header-search-input::placeholder {
    color: var(--text-muted);
}

.header-search-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-secondary);
}

.header-search-kbd {
    position: absolute;
    right: var(--spacing-md);
    padding: 4px 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    pointer-events: none;
}

/* Right Section */
.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Auth Button (Not Logged In) */
.header-auth-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.header-auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.header-auth-btn .iconify {
    font-size: 18px;
}

.header-tokens {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
}

.header-tokens .iconify {
    font-size: 18px;
    color: var(--warning);
}

.header-tokens-amount {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
}

.header-tokens-label {
    font-size: 13px;
    color: var(--text-muted);
}

.header-tokens-add {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    background: var(--primary);
    border: none;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-left: var(--spacing-xs);
}

.header-tokens-add:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.header-tokens-add .iconify {
    font-size: 16px;
}

.header-icon-btn {
    position: relative;
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.header-icon-btn .iconify {
    font-size: 20px;
}

.header-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    background: var(--danger);
    color: white;
    font-size: 10px;
    font-weight: 700;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* User Menu */
.header-user-menu {
    position: relative;
}

.header-user-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.header-user-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-hover);
}

.header-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.header-user-avatar .iconify {
    font-size: 18px;
}

.header-user-name {
    font-size: 14px;
    font-weight: 600;
}

.header-user-arrow {
    font-size: 18px;
    color: var(--text-muted);
    transition: transform 0.2s ease;
}

.header-user-btn:hover .header-user-arrow {
    transform: rotate(180deg);
}

/* User Dropdown */
.header-user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 280px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1001;
}

.header-user-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.header-dropdown-section {
    padding: var(--spacing-md);
}

.header-dropdown-divider {
    height: 1px;
    background: var(--border);
    margin: 0;
}

.header-dropdown-user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
}

.header-dropdown-user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.header-dropdown-user-avatar .iconify {
    font-size: 24px;
}

.header-dropdown-user-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.header-dropdown-user-email {
    font-size: 13px;
    color: var(--text-muted);
}

.header-dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius);
    transition: all 0.2s ease;
    font-size: 14px;
}

.header-dropdown-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.header-dropdown-item .iconify {
    font-size: 18px;
}

/* Responsive */
@media (max-width: 1024px) {
    .header-search {
        max-width: 300px;
    }

    .header-tokens-label {
        display: none;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 0 var(--spacing-md);
    }

    .sidebar-toggle-btn {
        display: none;
    }

    .header-menu-btn {
        display: flex;
    }

    .header-search {
        max-width: 200px;
    }

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

    .header-user-name {
        display: none;
    }

    .header-tokens {
        padding: var(--spacing-sm);
    }

    .header-tokens-label {
        display: none;
    }
}

@media (max-width: 480px) {
    .header-search {
        display: none;
    }

    .header-tokens-amount {
        font-size: 13px;
    }
}