@media (max-width: 1024px) {
    .activity-sublink-toggle {
        display: none !important;
    }
    .activity-mobile-toggle {
        display: flex;
    }
    .activity-sublink-wrapper {
        gap: 8px;
    }
}
.activity-subitem.open > .activity-sublink-wrapper > .activity-mobile-toggle i {
    transform: rotate(90deg);
}
.activity-mobile-toggle i {
    transform: rotate(45deg);
    transition: transform 0.2s;
}
.activity-mobile-toggle {
    display: none;
    background: none;
    border: none;
    margin-left: auto;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 1.5em;
    color: var(--theme-color2, #1976d2);
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s, color 0.2s;
}
.activity-mobile-toggle:active,
.activity-mobile-toggle:focus {
    background: #e3f2fd;
    color: var(--theme-color, #1565c0);
}
@media (max-width: 768px) {
    .activity-mobile-toggle {
        display: flex;
    }
    .activity-link-toggle {
        display: none;
    }
    .activity-link-wrapper {
        gap: 8px;
    }
}
.activity-link-wrapper, .activity-sublink-wrapper {
    display: flex;
    align-items: center;
    gap: 4px;
}

.activity-link-toggle, .activity-sublink-toggle {
    cursor: pointer;
    display: flex;
    align-items: center;
    color: var(--theme-color2);
    transform: rotate(45deg);
    transition: all 0.2s ease;
}

.activity-item.open > .activity-link-wrapper > .activity-link-toggle,
.activity-subitem.open > .activity-sublink-wrapper > .activity-sublink-toggle {
    transform: rotate(90deg);
}

@media (max-width: 1024px) {
    .activity-link-toggle {
        display: none !important;
    }
}

.activity-mobile-toggle {
    display: none;
    background: none;
    border: none;
    margin-left: 0;
    padding: 5px;
    cursor: pointer;
    font-size: 20px;
    font-weight: bold;
    color: var(--theme-color2, #1976d2);
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s, color 0.2s, transform 0.2s;
    aspect-ratio: 1;
    width: 30px;
    height: 30px;
}
.activity-mobile-toggle:active,
.activity-mobile-toggle:focus {
    background: #e3f2fd;
    color: var(--theme-color, #1565c0);
}
.activity-item.open > .activity-link-wrapper > .activity-mobile-toggle i {
    transform: rotate(90deg);
}
.activity-mobile-toggle i {
    transform: rotate(45deg);
    transition: transform 0.2s;
}
@media (max-width: 1024px) {
    .activity-mobile-toggle {
        display: flex;
    }
}

/* Hiyerarşik Aktivite Menüsü Stilleri */
.activity-item {
    margin-bottom: 8px;
}

.activity-link {
    display: block;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
}

.activity-submenu {
    margin-left: 20px;
    border-left: 2px solid #e9ecef;
    padding-left: 10px;
    margin-top: 5px;

    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, opacity 0.6s ease;
}

.activity-item.open > .activity-submenu,
.activity-subitem.open > .activity-submenu {
    max-height: 1000px;
    opacity: 1;
}

.activity-subitem {
    margin-bottom: 5px;
}

.activity-sublink {
    display: block;
    color: #666;
    text-decoration: none;
    font-size: 0.9em;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.activity-sublink:hover {
    background-color: #f1f3f4;
    color: var(--theme-color);
    text-decoration: none;
}

.activity-sublink.active {
    background-color: #e3f2fd;
    color: var(--theme-color);
}

.activity-sublink i {
    margin-right: 8px;
    font-size: 0.8em;
}

.activity-link i {
    margin-right: 10px;
}

/* Responsive tasarım */
@media (max-width: 768px) {
    .activity-submenu {
        margin-left: 15px;
    }

    .activity-link, .activity-sublink {
        font-size: 0.9em;
    }
}

/* Scroll bar özelleştirmesi */
.hierarchical-menu::-webkit-scrollbar {
    width: 6px;
}

.hierarchical-menu::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.hierarchical-menu::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.hierarchical-menu::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Açılır/kapanır animasyonu için */
.activity-submenu {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 1000px;
    }
}