.header {
    position: sticky;
    top: 0;
    background: linear-gradient(135deg, #23216a 0%, #2e2b7a 100%);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-index-header);
    transition: box-shadow var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

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

/* Logo */
.header-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.header-logo svg {
    width: 120px;
    height: auto;
}

@media (min-width: 768px) {
    .header-logo svg {
        width: 140px;
    }
}

/* Desktop Navigation */
.header-nav {
    display: none;
}

@media (min-width: 1024px) {
    .header-nav {
        display: block;
        flex: 1;
    }
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-secondary);
    background-color: rgba(255, 255, 255, 0.1);
}

.nav-link svg {
    width: 18px;
    height: 18px;
}

/* Dropdown */
.nav-item-more {
    position: relative;
}

.dropdown-icon {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-fast);
}

.nav-item-more[aria-expanded="true"] .dropdown-icon {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--spacing-xs);
    min-width: 200px;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-sm);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    z-index: var(--z-index-dropdown);
}

.nav-item-more[aria-expanded="true"] .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    color: var(--color-primary);
    background-color: var(--color-gray-50);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-gray-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    color: var(--color-primary);
    background-color: var(--color-gray-50);
}

.btn-add-company {
    display: none;
}

@media (min-width: 768px) {
    .btn-add-company {
        display: inline-flex;
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm) var(--spacing-lg);
    }
}

.btn-text {
    display: none;
}

@media (min-width: 1200px) {
    .btn-text {
        display: inline;
    }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    gap: 5px;
    border: 0;
    background: transparent;
    cursor: pointer;
}

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

.hamburger-line {
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

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

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
    z-index: calc(var(--z-index-header) - 1);
}

.mobile-menu.active {
    transform: translateX(0);
}

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

    .mobile-backdrop {
        display: none;
    }
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.mobile-nav-link {
    display: block;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-gray-50);
}

.mobile-nav-link-cta {
    margin-top: var(--spacing-md);
    background-color: var(--color-secondary);
    color: var(--color-white);
    text-align: center;
}

.mobile-nav-link-cta:hover {
    background-color: var(--color-secondary-dark);
}

.mobile-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.35);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base);
    z-index: calc(var(--z-index-header) - 2);
}

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