.nexus-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    padding: 0.5rem 1rem;
    background-color: var(--nexus-card);
    color: var(--nexus-neon);
    border: 1px solid var(--nexus-neon);
    font-family: var(--nexus-font-sans);
    font-weight: 500;
    font-size: 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 0 5px rgba(0, 255, 153, 0.1);
}

.nexus-btn:hover:not(:disabled) {
    background-color: rgba(0, 255, 153, 0.1);
    box-shadow: 0 0 15px rgba(0, 255, 153, 0.3);
}

.nexus-btn:active:not(:disabled) {
    transform: scale(0.98);
}

.nexus-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    border-color: #555;
    color: #555;
    box-shadow: none;
}