.hub-sidebar {
    width: 72px;
    min-width: 72px;
    background: rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 0;
    gap: 4px;
}

.theme-unicorn .hub-sidebar {
    background: rgba(0, 0, 0, 0.25);
}

.hub-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    flex: 1;
    overflow-y: auto;
    /* width: 100%; */
    padding: 8px 12px;
}

.hub-item {
    position: relative;
    width: 52px;
    height: 52px;
    border-radius: 26px;
    background: rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.hub-item:hover {
    border-radius: 18px;
    background: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.hub-item.active {
    /* border-radius: 18px; */
    background: var(--accent);
    box-shadow: 0 2px 7px rgba(102, 102, 102, 0.4);
}

.theme-unicorn .hub-item {
    background: #0000002e;
}

.theme-unicorn .hub-item:hover,
.theme-unicorn .hub-item.active {
    background: #afafaf3b;
}

.hub-icon {
    font-size: 1.3rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-unicorn .hub-icon {
    color: white;
}

.hub-emoji {
    font-size: 1.6rem;
}

.hub-initial {
    font-weight: 700;
    font-size: 1.3rem;
}

.hub-indicator {
    position: absolute;
    left: -12px;
    width: 4px;
    height: 0;
    background: var(--accent);
    border-radius: 0 4px 4px 0;
    transition: height 0.2s ease;
}

.theme-unicorn .hub-indicator {
    background: #bbbbbb54;
}

.hub-item:hover .hub-indicator {
    height: 20px;
}

.hub-item.active .hub-indicator {
    height: 36px;
}

.hub-settings-btn {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--accent);
    border: 2px solid var(--bg-secondary);
    color: white;
    font-size: 0.75rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.hub-item:hover .hub-settings-btn {
    display: flex;
}

.hub-settings-btn:hover {
    background: var(--accent-hover);
    transform: scale(1.1);
}

.hub-divider {
    width: 36px;
    height: 2px;
    background: rgba(0, 0, 0, 0.15);
    border-radius: 1px;
    margin: 8px 0;
}

.theme-unicorn .hub-divider {
    background: rgba(255, 255, 255, 0.2);
}

.hub-add-btn {
    width: 52px;
    height: 52px;
    border-radius: 26px;
    background: rgba(0, 0, 0, 0.1);
    border: 2px dashed rgba(0, 0, 0, 0.2);
    cursor: pointer;
    color: var(--accent);
    font-size: 1.6rem;
    font-weight: 300;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hub-add-btn:hover {
    border-radius: 18px;
    background: var(--accent);
    border-color: var(--accent);
    color: white;
    transform: translateY(-2px);
}

.theme-unicorn .hub-add-btn {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.theme-unicorn .hub-add-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

/* Disabled state styles */
.hub-add-btn.disabled,
.hub-add-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.hub-add-btn.disabled:hover,
.hub-add-btn:disabled:hover {
    transform: none;
    background: rgba(0, 0, 0, 0.1);
    border-color: rgba(0, 0, 0, 0.2);
    color: var(--accent);
}

.hub-settings-btn.disabled,
.hub-settings-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.hub-settings-btn.disabled:hover,
.hub-settings-btn:disabled:hover {
    transform: none;
    background: var(--accent);
}

.theme-unicorn .hub-add-btn.disabled,
.theme-unicorn .hub-add-btn:disabled {
    opacity: 0.4;
}

.theme-unicorn .hub-settings-btn.disabled,
.theme-unicorn .hub-settings-btn:disabled {
    opacity: 0.4;
}