.topnav-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topnav-height);
    background: var(--color-primary);
    display: flex;
    align-items: center;
    padding: 0 1.25rem;
    gap: 1rem;
    z-index: var(--z-fixed);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
    transition: background var(--transition-base);
}

.topnav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    flex-shrink: 0;
}

.topnav-brand-img {
    height: 32px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.topnav-plan-badge {
    flex-shrink: 0;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.2px;
    white-space: nowrap;
    cursor: default;
}

.topnav-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.125rem;
    flex: 1;
    list-style: none;
    margin: 0;
    padding: 0;
}

.topnav-item-group {
    position: relative;
}

.topnav-link {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    color: rgba(255, 255, 255, 0.82);
    text-decoration: none;
    font-size: 0.84rem;
    font-weight: 500;
    padding: 0.45rem 0.825rem;
    border-radius: 8px;
    white-space: nowrap;
    border: none;
    background: none;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.topnav-link:hover,
.topnav-link.active {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.topnav-chevron {
    font-size: 0.65rem;
    margin-left: 0.125rem;
    transition: transform var(--transition-fast);
}

.topnav-item-group.open > .topnav-group-toggle .topnav-chevron {
    transform: rotate(180deg);
}

.topnav-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 0.375rem;
    min-width: 210px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    display: none;
    z-index: var(--z-dropdown);
}

.topnav-dropdown-end {
    left: auto;
    right: 0;
}

.topnav-item-group.open > .topnav-dropdown {
    display: block;
}

.topnav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 0.875rem;
    border-radius: 8px;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.84rem;
    transition: background var(--transition-fast);
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    box-sizing: border-box;
}

.topnav-dropdown-item:hover {
    background: var(--color-primary-alpha-10);
    color: var(--color-primary);
}

.topnav-dropdown-item i {
    width: 16px;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.78rem;
    flex-shrink: 0;
}

.topnav-dropdown-item-danger,
.topnav-dropdown-item-danger:hover {
    color: var(--color-danger);
}

.language-switcher-flag {
    width: 22px;
    height: 16px;
    object-fit: cover;
    border-radius: 2px;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.12);
    flex-shrink: 0;
}

.language-switcher-toggle-flag {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.language-switcher-option.active {
    color: var(--color-primary);
    font-weight: 600;
}

.language-switcher-option:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.topnav-dropdown-header {
    padding: 0.5rem 0.875rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text);
    white-space: nowrap;
}

.topnav-dropdown-divider {
    border-top: 1px solid var(--color-border);
    margin: 0.3rem 0;
}

.topnav-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
    margin-left: auto;
}

.topnav-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.12);
    border: none;
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.85);
    cursor: pointer;
    transition: background var(--transition-fast);
    flex-shrink: 0;
}

.topnav-icon-btn:hover {
    background: rgba(255, 255, 255, 0.22);
    color: #fff;
}

.topnav-avatar-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.18);
    cursor: pointer;
    overflow: hidden;
    padding: 0;
    transition: border-color var(--transition-fast);
}

.topnav-avatar-btn:hover {
    border-color: rgba(255, 255, 255, 0.6);
}

.topnav-avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.topnav-avatar-fallback {
    color: #fff;
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1;
}

.topnav-hamburger {
    display: none;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    flex-shrink: 0;
    transition: background var(--transition-fast);
}

.topnav-hamburger:hover {
    background: rgba(255, 255, 255, 0.12);
}

.topnav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: calc(var(--z-fixed) - 1);
    background: transparent;
    border: none;
    cursor: default;
}

.topnav-overlay.open {
    display: block;
}

.topnav-mobile-menu {
    display: none;
    position: fixed;
    top: var(--topnav-height);
    left: 0;
    right: 0;
    background: var(--color-primary);
    z-index: var(--z-fixed);
    padding: 0.5rem 0.75rem 1rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    max-height: calc(100vh - var(--topnav-height));
    overflow-y: auto;
}

.topnav-mobile-menu.open {
    display: block;
}

.topnav-mobile-link {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.65rem 0.875rem;
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    transition: background var(--transition-fast);
}

.topnav-mobile-link:hover,
.topnav-mobile-link.active {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.topnav-mobile-sub {
    padding-left: 1rem;
    border-left: 2px solid rgba(255, 255, 255, 0.15);
    margin: 0.25rem 0 0.25rem 1rem;
}

.topnav-mobile-sub .topnav-mobile-link {
    font-size: 0.83rem;
    padding: 0.5rem 0.875rem;
}

.topnav-mobile-group-label {
    padding: 0.35rem 0.875rem;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: rgba(255, 255, 255, 0.65);
    font-weight: 600;
}

.topnav-mobile-divider {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin: 0.5rem 0;
}

.main-content {
    margin-left: 0 !important;
    padding-top: calc(var(--topnav-height) + 1.5rem);
    padding-bottom: 2rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    transition: none;
}

@media (max-width: 991.98px) {
    .topnav-plan-badge {
        display: none;
    }

    .topnav-links {
        display: none;
    }

    .topnav-hamburger {
        display: none;
    }

    .topnav-right .topnav-item-group {
        display: none;
    }

    .main-content {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

@media (max-width: 575.98px) {
    .main-content {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .topnav-mobile-menu,
    .topnav-overlay,
    .topnav-dropdown,
    .topnav-chevron {
        transition: none;
        animation: none;
    }
}