.header {
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
}

.navbar {
    height: 100%;
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-text {
    display: none;
}

@media (min-width: 768px) {
    .logo-text {
        display: inline;
    }
}

.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition-fast);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-menu {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-lg);
    padding: 1rem;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
}

.nav-menu.active {
    display: block;
}

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

    .nav-menu {
        display: flex;
        position: static;
        align-items: center;
        gap: 1.5rem;
        padding: 0;
        box-shadow: none;
        max-height: none;
        overflow: visible;
    }
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

@media (min-width: 1024px) {
    .nav-links {
        flex-direction: row;
        gap: 0.5rem;
    }
}

.nav-links a {
    display: block;
    padding: 0.625rem 1rem;
    color: var(--text-primary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-primary);
    background-color: var(--bg-secondary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

@media (min-width: 1024px) {
    .nav-actions {
        margin-top: 0;
        padding-top: 0;
        border-top: none;
    }
}

.btn-login {
    padding: 0.625rem 1.25rem;
    color: var(--text-primary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.btn-login:hover {
    color: var(--color-primary);
    background-color: var(--bg-secondary);
}

.user-menu {
    position: relative;
}

.user-menu-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background: none;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
    justify-content: space-between;
}

@media (min-width: 1024px) {
    .user-menu-toggle {
        width: auto;
    }
}

.user-menu-toggle:hover {
    border-color: var(--color-primary);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.user-name {
    font-weight: 500;
    font-size: 0.875rem;
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dropdown-icon {
    color: var(--text-secondary);
}

.user-dropdown {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    margin-top: 0.5rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    min-width: 200px;
}

@media (min-width: 1024px) {
    .user-dropdown {
        position: absolute;
        top: 100%;
        right: 0;
        margin-top: 0.75rem;
    }
}

.user-dropdown.active {
    display: flex;
}

.user-dropdown a,
.user-dropdown button {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-align: left;
    width: 100%;
}

.user-dropdown a:hover,
.user-dropdown button:hover {
    background-color: var(--bg-secondary);
    color: var(--color-primary);
}

.dropdown-divider {
    margin: 0.5rem 0;
    border: none;
    border-top: 1px solid var(--border-light);
}

.logout-btn {
    color: var(--color-danger) !important;
}

.logout-btn:hover {
    background-color: rgba(239, 68, 68, 0.1) !important;
}